JP6144065B2 - Work measuring apparatus and work measuring method - Google Patents

Description

  The present invention relates to a workpiece measuring apparatus and a workpiece measuring method for measuring workpiece characteristics by a measuring means while holding and transporting a workpiece such as a chip-type electronic component, and in particular, easily confirming the measurement accuracy of the measuring means. The present invention relates to a workpiece measuring device and a workpiece measuring method.

  2. Description of the Related Art A workpiece measuring apparatus and a workpiece measuring method for measuring workpiece characteristics using a measuring unit arranged along a conveyance path while holding and conveying a chip-type electronic component (hereinafter referred to as a workpiece) are known. .

  For example, Patent Document 1 discloses a workpiece measuring device that performs measurement while conveying a workpiece by a circular conveyance table that is horizontally disposed and rotates intermittently. Such a workpiece measuring apparatus will be described below.

  FIG. 67 shows a plan view of a workpiece measuring apparatus 100 according to the prior art. The workpiece measuring apparatus 100 includes a transfer table 3 that is rotatably disposed on a table base 200 that is horizontally disposed. The transport table 3 is intermittently rotated in the direction of the arrow A1 around the central shaft 3a by the action of a drive mechanism (not shown). A plurality of work storage holes 4 are formed in the transfer table 3 from the peripheral edge toward the center. The work storage hole 4 opens toward the outside of the transfer table 3, and stores and transfers a work W1 (described later) individually. Further, a linear feeder 5 having a linear shape is arranged toward the outer periphery of the transfer table 3. The linear feeder 5 vibrates by the action of a drive mechanism (not shown), and has a function of conveying the workpiece W1 in the direction of the arrow B1 in a single row state by this vibration.

  The terminal portion of the linear feeder 5 is close to the outer peripheral portion of the transfer table 3 and faces the opening of the work storage hole 4 there. At a position where the terminal end of the linear feeder 5 and the opening of the workpiece storage hole 4 face each other, a separation supply unit 6 that separates the workpieces W1 on the linear feeder 5 one by one and supplies them individually to the workpiece storage hole 4 is disposed. Has been. A first measurement unit 7a, a second measurement unit 7b, a third measurement unit 7c, and a measurement unit that measure various characteristics of the workpiece W1 along the intermittent rotation direction from the separation supply unit 6 in the intermittent rotation direction, that is, the arrow A1 direction. The defective workpiece discharge unit 8 that discharges the workpiece W1 determined to be defective based on the result of the measurement from the workpiece storage hole 4, and the non-defective workpiece discharge that discharges the workpiece W1 determined to be non-defective based on the measurement result from the workpiece storage hole 4 Units 9 are arranged in this order. And the control part 120 which controls each part which comprises the measuring apparatus 100 is installed. Since the transfer table 3 rotates intermittently to transfer the workpiece W1, the outer peripheral portion of the transfer table 3 from the separation supply unit 6 to the non-defective workpiece discharge unit 9 has a centrifugal force acting on the workpiece W1 during the intermittent rotation. Thus, a guard wall (not shown) for preventing the workpiece W1 from jumping out of the transfer table 3 is formed. Similarly, the upper part of the workpiece storage hole 4 from the separation supply unit 6 to the non-defective workpiece discharge unit 9 is a table cover (not shown) for preventing the workpiece W1 from jumping out above the transfer table 3 due to vibration during intermittent rotation. Is formed.

  Here, the workpiece W1 will be described. 3 is a perspective view of the workpiece W1, and FIGS. 4A, 4B, and 4C are views of the workpiece W1 viewed from the directions of arrows C1, D1, and E1 in FIG. 3, respectively. Furthermore, an electrical circuit diagram of the workpiece W1 is shown in FIG. The work W1 is a light emitting diode (LED). As shown in FIGS. 3 and 4, the workpiece W1 is formed in a hexahedron shape by an insulator, and a light emitting surface W1L covered with a transparent resin is formed in a substantially planar shape on a surface W1f1 which is one surface thereof. Electrodes W1a and W1b made of a conductor project from two surfaces W1f2 and W1f3, which are adjacent to the surface W1f1 and face each other. The correspondence between the electrodes W1a and W1b and the electric circuit of the work W1 is as shown in FIG. That is, when the electrode W1a is an anode and the electrode W1b is a cathode, and a predetermined DC voltage is supplied from a DC voltage source to the workpiece W1 so that the electrode W1a has a higher potential than the electrode W1b, the light emitting diode Dx That is, the light emitting surface W1L in FIG. 3 emits light.

  Thus, since the electrode W1a and the electrode W1b have directionality, it is necessary to identify the direction when the work W1 is viewed from the outside. For this purpose, a cathode mark W1m indicating that the electrode W1b is a cathode is printed at a corner of the surface W1f1 on the side close to the electrode W1b. The length of each side of the hexahedron constituting the workpiece W1 (a1, b1, c1 in FIG. 4) is such that the lengths a1, b1 of the sides of the surface W1f1 on which the light emitting surface W1L is formed are about 5 mm to 7 mm. Products having a short side length c1 of about 2 mm on the surfaces W1f2 and W1f3 from which the electrodes W1a and W1b protrude are commercially available.

  Next, the operation of the workpiece measuring apparatus 100 will be described below.

  In FIG. 67, the workpiece W1 is put together in a parts feeder (not shown). Then, by the action of a direction detection mechanism (not shown), the light emitting surface W1L shown in FIG. 3 is oriented upward, and the direction of the electrode W1b is oriented so as to face the moving direction of the workpiece, that is, the arrow B1 direction shown in FIG. Line up in a row on the feeder 5. As described above, the linear feeder 5 vibrates by the action of a drive mechanism (not shown), and the workpiece W1 is conveyed in the direction of the arrow B1 in a single row aligned in the above-described direction due to this vibration. And the workpiece | work W1 which reached | attained the position which opposes the opening part of the workpiece | work storage hole 4 of the conveyance table 3 which has stopped is isolate | separated one by one by the effect | action of the separation mechanism which is not shown in figure in the separation supply part 6, and works individually It is stored in the storage hole 4. At this time, since the direction of the workpiece W1 is previously aligned on the linear feeder 5 as described above, the electrodes W1a and W1b face the table base 200 side, and the electrode W1b (cathode) is the central axis 3a of the transfer table 3. The workpiece W1 is accommodated in the workpiece accommodation hole 4 in a state close to the workpiece.

  Next, the transfer table 3 rotates intermittently in the direction of the arrow A1, and the workpiece W1 stops at the first measurement unit 7a. Then, a probe (not shown) connected to the DC voltage source contacts the electrodes W1a and W1b of the workpiece W1 from the table base 200 and supplies a DC voltage to cause the light emitting surface W1L to emit light. Then, this light is received by a wavelength meter (not shown) arranged on the upper side of the workpiece W1, and the wavelength is measured. Here, the DC voltage source and the wavelength meter are commercially available measuring instruments.

  Next, in the second measurement unit 7b, a probe (not shown) connected to a DC voltage source similar to the first measurement unit 7a contacts the electrodes W1a and W1b to supply a DC voltage, thereby causing the light emitting surface W1L to emit light. . Then, this light is received by a luminance meter (not shown) disposed on the upper side of the workpiece W1, and the luminance is measured. Here, the DC voltage source and the luminance meter are commercially available measuring instruments.

  In the third measurement unit 4c, a probe (not shown) is brought into contact with the electrodes W1a and W1b to supply a DC voltage whose value changes from a DC voltage source (not shown) to the work W1 to emit light W1L. The light is received by a multi-channel spectrometer (not shown), and a spectrum measurement called total luminous flux measurement is performed. Here, the source meter and the multichannel spectrometer are commercially available measuring instruments.

  When the above measurement is completed, it is determined whether the workpiece W1 is a non-defective product or a defective product based on the measurement result. When the workpiece W1 determined to be defective reaches the defective workpiece discharge portion 8 by intermittent rotation of the transfer table 3, it is discharged from the workpiece storage hole 4 by the action of a discharge mechanism (not shown) and stored in a defective workpiece storage box (not shown). Is done. In addition, the work W1 determined to be a non-defective product is not discharged by the defective work discharge unit 8 but when the work W1 reaches the non-defective work discharge unit 9 by intermittent rotation of the transfer table 3, the work receiving hole 4 is acted by a discharge mechanism (not shown). And is stored in a non-defective work storage box (not shown).

  Since all the workpieces W1 are discharged from the workpiece storage hole 4 in the non-defective workpiece discharge unit 9, the workpiece storage hole 4 from the non-defective workpiece discharge unit 9 to the separation supply unit 6 is empty. The empty work storage hole 4 reaches the separation supply unit 6 by intermittent rotation of the transfer table 3 and stores the work W1 again as described above. The series of operations described above are all executed based on the control of the control unit 120.

  Incidentally, as described above, commercially available measuring instruments are arranged in the first measuring unit 7a, the second measuring unit 7b, and the third measuring unit 7c, and the characteristics of the workpiece W1 are measured using them. In order to ensure the measurement accuracy, these measurement devices regularly check the measurement accuracy, and depending on the result, it is necessary to perform calibration. Here, the calibration of the measuring instrument is to obtain the relationship between the value indicated by the measuring instrument and the true value and to correct the scale or display of the measuring instrument. Specifically, measurement is performed using a sample whose true value measured by the measuring instrument is known in advance, and the difference between the measured value indicated by the measuring instrument and the true value is regarded as an error. Display the value excluding the error.

  In addition, in the 1st measurement part 7a, the 2nd measurement part 7b, and the 3rd measurement part 7c, as above-mentioned, all are implementing the measurement using several measuring instruments, and the measuring instrument and the workpiece | work W1 are carried out. The electrodes W1a and W1b are connected by a cable and a probe (not shown). As described above, when measuring using a measuring system composed of a plurality of measuring instruments and members connecting the measuring instrument and the workpiece, that is, using the measuring system, check the measurement accuracy of the entire measuring system, Calibrate each measuring device according to the results. Such confirmation of measurement accuracy is based on the fact that the true value measured by the measurement system, that is, the true value measured by the measurement system composed of the calibrated measuring instrument and the member connecting the measuring instrument and the workpiece, Conduct using a known sample.

  Here, the workpiece measuring apparatus 100 shown in FIG. 67 has two types of operation modes, that is, a normal mode and a data acquisition mode, and an operator sets an operation mode on an operation panel (not shown). can do. In the normal mode, the workpiece W1 conveyed by the linear feeder 5 is stored in the workpiece storage hole 4 in the separation supply unit 6 and various measurements are performed while being transferred, as described with respect to the operation of the measurement apparatus 100 described above. In this mode, it is determined whether the workpiece W1 is a non-defective product or a defective product based on the measurement result, and is discharged at the discharge unit corresponding to the determination result.

  On the other hand, the data acquisition mode is a mode for acquiring data when the measurement accuracy of the measurement system is confirmed, and the sample work W1s stored in the work storage hole 4 in the separation supply unit 6 (FIGS. 30A and 30B). ) And FIGS. 31 (a) and 31 (b)), after carrying out various measurements while being conveyed, the sample work W1s is not discharged from the discharge unit corresponding to the determination result based on the measurement result. When returning to the separation supply unit 6, the operation of the measuring apparatus 100 is stopped. Here, the sample work W1s is the same as the work W1, and the characteristics are measured in advance by the first measurement unit 7a, the second measurement unit 7b, and the third measurement unit 7c. The operation in the data acquisition mode is also performed based on the control of the control unit 120 as in the normal mode. The procedure according to the prior art for confirming the accuracy of the measurement system by shifting the measurement apparatus 100 operating in the normal mode to the data acquisition mode is as follows.

  First, the operator turns off the work measuring apparatus 100 (operating in the normal mode) shown in FIG. 67 and stops the operation. And all the workpiece | work W1 in the workpiece | work storage hole 4 of the conveyance table 3 is collect | recovered using tweezers. Next, the operator stores one sample work W1s in the work storage hole 4 at the position of the separation supply unit 6 using tweezers. Then, the work measuring apparatus 100 is turned on, and the operation in the data acquisition mode is set from an operation panel (not shown).

  In this case, the workpiece measuring apparatus 100 performs the operation in the data acquisition mode as described above and stops. The operator collects the sample work W1s in the work storage hole 4 at the position of the separation supply unit 6 using tweezers. Next, separate supply of sample work W1s with different characteristics measured by a measurement system that is different from the currently collected sample work W1s and that is configured by a calibrated measuring instrument and a member that connects the measuring instrument and the work. One piece is stored in the work storage hole 4 at the position of the part 6 using tweezers. And the measuring apparatus 100 is operated by data acquisition mode similarly to the previous time. As described above, the reliability of the measurement accuracy confirmation of the measurement system can be improved by measuring a plurality of sample workpieces W1s having variations in characteristics. In the data acquisition mode, the variation in characteristics of the plurality of sample workpieces W1s to be measured and the number of sample workpieces W1s to be measured take into account the characteristics of the measuring instrument to be calibrated, the measurement accuracy required for the measurement items, and the like. , Decide in advance.

  When the measurement of the predetermined number of sample workpieces W1s is completed in this way, the operator can measure the data obtained by measuring these sample workpieces W1s with the workpiece measuring device 100, the calibrated measuring instruments and measuring instruments. Data measured by a measurement system constituted by members connecting the workpiece are compared. If the difference between the two data is within the standard value defined in advance, the operation in the normal mode is started again without performing calibration of the measuring instrument used in the workpiece measuring apparatus 100.

  On the other hand, if the difference between the two data exceeds the standard value defined in advance, the measuring instrument used in the workpiece measuring apparatus 100 is calibrated, and then the operation in the normal mode is started again. In addition, the period in which the workpiece measuring apparatus 100 is operated in the data acquisition mode, that is, the normal mode operation continuation time, which is how long the operation in the normal mode is continued, and shifts to data acquisition for confirming the measurement accuracy of the measurement system, Similar to the variation and the number of characteristics of the sample work W1s, the characteristics are determined in advance in consideration of the characteristics of the measuring device to be calibrated, the measurement accuracy required for the measurement items, and the like. Then, the control unit 120 incorporates a timer function for measuring time, measures the operation time of the workpiece measuring apparatus 100 in the normal mode, and when the operation time reaches the predetermined operation continuation time, a buzzer or the like is used. Notify workers.

  As described above, the measurement accuracy confirmation of the measurement system according to the conventional technique has the following problems. First, the work measuring apparatus 100 operating in the normal mode is turned off, the operation is stopped, and the work for collecting all the works W1 in the work storage holes 4 or the sample work W1s in the work storage holes 4 is used. Since all the operations for collecting the sample workpiece W1s after the storage and operation of the workpiece measuring apparatus 100 in the data acquisition mode are performed manually by the operator, it takes a very long time. In particular, since the sample work W1s is measured and replaced one by one, time-consuming elements are increased. Thus, the working rate of the data acquisition mode increases, so that the operation rate of the workpiece measuring apparatus 100 decreases.

  The next problem is that the work quality is likely to deteriorate due to the very small work W1 (sample work W1s). As described above, the length of each side of the hexahedron constituting the workpiece W1 is at most 2 mm to 7 mm (FIG. 4). For this reason, when an operator handles the sample work W1s using tweezers, accidents such as accidental detachment from the tweezers or loss of the treads are likely to occur. Further, since the outer dimension of the workpiece W1 is very small as described above, the cathode mark W1m shown in FIG. 4A is difficult to see, and the direction of the sample workpiece W1s is likely to be wrong when the workpiece W1s is stored in the workpiece storage hole 4. Further, since the light emitting surface W1L shown in FIG. 4A is made of resin, the light emitting surface W1L may be damaged when the work W1 or the sample work W1s is handled using tweezers. Furthermore, there is a possibility that identification of a plurality of sample workpieces W1s having the same appearance and different characteristics may be wrong, and correct measurement data in the workpiece measurement apparatus 100 of each sample workpiece may not be grasped.

  Then, in order to avoid these problems and prevent the work quality from deteriorating, the worker works with great care. This leads to a further increase in work time, further reducing the operating rate of the apparatus and significantly increasing the physical and psychological burden on the operator.

JP 2012-20822 A

  The present invention has been made in consideration of such points, and an object thereof is to provide a workpiece measuring device and a workpiece measuring method capable of easily and reliably confirming the measurement accuracy of the measuring means.

  The present invention has a plurality of holding units for holding a workpiece or a sample workpiece, and is provided with a transport body that is rotatably provided, a separation supply unit that separately feeds the work to the holding unit of the transport body, and a separation Measuring means for measuring the characteristics of the work or sample work that is arranged on the downstream side of the supply means and held in the holding part of the conveying body, and the work that is arranged on the downstream side of the measuring means and held in the holding part of the conveying body And a plurality of storage units for supplying the sample work having a predetermined reference characteristic to the holding unit of the transport body and storing the sample work between the separation supply unit and the measurement unit. A sample work supply means, a transport body, a separation supply means, a measurement means, a discharge means, and a control device for controlling the sample work supply means are provided, and the control device takes a normal measurement mode. When the workpiece supplied from the separation supply means to the holder of the transport body is measured by the measuring means and then discharged from the discharge means, and when the sample measurement mode is taken, the storage section of the sample work supply means is held by the holder of the transport body. After the sample work supplied to the sample is measured by the measuring means, it is returned to the storage part of the sample work supplying means without being discharged from the discharging means.

  The present invention is characterized in that the sample work supplied from the storage part of the sample work supply means to the holding part of the carrier is measured by the measurement means and then returned to the original storage part of the sample work supply means. It is a workpiece measuring device.

  According to the present invention, the control device compares the measurement result of the sample work measured by the measuring means with the reference characteristic of the sample work built in in advance to obtain the difference, and the measurement result connected to the comparison part. And a warning unit that issues a warning when a difference in reference characteristics of the sample workpiece exceeds a predetermined value.

  In the present invention, the sample work supply means detects that the sample work has been supplied from the storage part of the sample work supply means into the holding part of the carrier, and that the sample work has been returned to the storage part of the sample work supply means. It is a workpiece | work measuring apparatus characterized by having the transfer detection means to do.

  The present invention is the workpiece measuring apparatus characterized in that the control device has automatic switching means for automatically switching between the normal measurement mode and the sample measurement mode.

  The present invention is the workpiece measuring apparatus characterized in that the control device has manual switching means for manually switching between the normal measurement mode and the sample measurement mode.

  The present invention is the workpiece measuring apparatus, wherein the manual switching means has a push button switch.

  The present invention is the workpiece measuring apparatus, wherein the transport body has a circular transport table.

  The present invention is the workpiece measuring apparatus, wherein the holding portion of the transfer body is provided on the outer periphery of the transfer table and is formed of a recess opening outward.

  The present invention is the workpiece measuring apparatus, wherein the holding unit of the transfer body is provided in the vicinity of the outer periphery of the transfer table and includes a through hole penetrating the transfer table.

  The present invention is the workpiece measuring apparatus, wherein the holding unit of the transfer body is provided on one surface of the transfer table and includes a transfer nozzle that advances and retreats with respect to the one surface.

  The present invention has a plurality of holding units for holding a workpiece or a sample workpiece, and is provided with a transport body that is rotatably provided, a separation supply unit that separately feeds the work to the holding unit of the transport body, and a separation Measuring means for measuring the characteristics of the work or sample work that is arranged on the downstream side of the supply means and held in the holding part of the conveying body, and the work that is arranged on the downstream side of the measuring means and held in the holding part of the conveying body And a plurality of storage units for supplying the sample work having a predetermined reference characteristic to the holding unit of the transport body and storing the sample work between the separation supply unit and the measurement unit. A workpiece measurement device using a workpiece measuring device provided with a sample work supply means, a carrier, a separation supply means, a measurement means, a discharge means, and a control device for controlling the sample work supply means. In the method, the control device takes the normal measurement mode, measures the workpiece supplied from the separation supply means to the holding unit of the carrier by the measurement means, and then discharges it from the discharge means; and the control device sets the sample measurement mode. The sample work supplied from the storage part of the sample work supply means to the holding part of the carrier is measured by the measurement means and then returned to the storage part of the sample work supply means without being discharged from the discharge means. This is a method for measuring a workpiece.

  The present invention is characterized in that the sample work supplied from the storage part of the sample work supply means to the holding part of the carrier is measured by the measurement means and then returned to the original storage part of the sample work supply means. This is a workpiece measurement method.

  According to the present invention, the control device compares the measurement result of the sample work measured by the measuring means with the reference characteristic of the sample work built in in advance to obtain the difference, and the measurement result connected to the comparison part. And a warning unit that issues a warning when a difference in reference characteristics of the sample workpiece exceeds a predetermined value.

  In the present invention, the sample supply means detects that the sample work has been supplied from the storage part of the sample work supply means into the holding part of the carrier, and that the sample work has been returned to the storage part of the sample work supply means. A workpiece measuring method comprising a transfer detecting means.

  The present invention is the workpiece measuring method, wherein the control device has automatic switching means for automatically switching between the normal measurement mode and the sample measurement mode.

  The present invention is the workpiece measuring method, wherein the control device has manual switching means for manually switching between the normal measurement mode and the sample measurement mode.

  The present invention is the workpiece measuring method, wherein the manual switching means has a push button switch.

  The present invention is the workpiece measuring method, wherein the transport body has a circular transport table.

  The present invention is the workpiece measuring method, wherein the holding portion of the transport body is provided on the outer periphery of the transport table and includes a concave portion that opens outward.

  The present invention is the workpiece measuring method, wherein the holding unit of the transport body is provided in the vicinity of the outer periphery of the transport table and includes a through-hole penetrating the transport table.

  The present invention is the work measuring method, wherein the holding unit of the transport body is provided on one surface of the transport table and includes a transport nozzle that moves forward and backward with respect to the one surface.

  As described above, according to the present invention, the measurement accuracy of the measurement means can be easily and reliably confirmed.

FIG. 1 is a plan view showing a workpiece measuring apparatus according to a first embodiment of the present invention. FIG. 2 is an enlarged view of a region P1 in FIG. FIG. 3 is a perspective view showing a workpiece. 4A, 4B, and 4C are views seen from the directions of arrows C1, D1, and E1, respectively, in FIG. FIG. 5 is an electric circuit diagram of the workpiece. FIG. 6 is a perspective view showing a work storage hole in the separation supply unit. FIG. 7 is a perspective view showing a work storage hole in which a work is stored in the separation supply unit. FIGS. 8A, 8B, and 8C are explanatory views of a position recognition function in the workpiece measuring apparatus. FIG. 9 is an enlarged perspective view of the transfer portion in FIG. FIG. 10 is a perspective view showing a state in which the sample work is stored in the work storage hole in FIG. 9. FIGS. 11A, 11B, and 11C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 12A, 12B, and 12C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 13A, 13B, and 13C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 14A, 14B, and 14C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 15A, 15B, and 15C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring device. FIGS. 16A, 16B, and 16C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 17A, 17B, and 17C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring device. 18A, 18B, and 18C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 19A, 19B, and 19C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring device. FIGS. 20A, 20B, and 20C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 21A, 21B, and 21C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 22A, 22B, and 22C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 23A, 23B, and 23C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 24A, 24B, and 24C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 25A, 25B, and 25C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 26A, 26B, and 26C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring device. FIGS. 27A, 27B, and 27C are views showing a state of movement of a workpiece in each workpiece storage hole in the workpiece measuring apparatus. FIGS. 28A and 28B are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 29A and 29B are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 30A and 30B are explanatory views of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 31A and 31B are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 32A and 32B are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 33A and 33B are explanatory diagrams of a sample work transfer procedure and a transfer completion confirmation method in the work measuring apparatus. 34 (a) and 34 (b) are explanatory views of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 35A and 35B are explanatory diagrams of a sample work transfer procedure and a transfer completion confirmation method in the work measuring apparatus. FIG. 36 is a front view showing a workpiece measuring apparatus according to a second embodiment of the present invention. FIG. 37 is a view of the workpiece measuring device viewed from the direction of arrow M in FIG. FIG. 38 is an enlarged view of a region P2 in FIG. FIG. 39 is a perspective view showing a workpiece. 40A, 40B, and 40C are views seen from the directions of arrows C2, D2, and E2, respectively, in FIG. FIG. 41 is an electrical circuit diagram of the workpiece. FIG. 42 is a perspective view showing a work storage hole in the separation supply unit. FIG. 43 is a perspective view showing a work storage hole in which a work is stored in the separation supply unit. 44 (a), (b), and (c) are explanatory diagrams of the position recognition function in the measuring apparatus. 45 is a perspective view of the transfer portion in FIG. 38 as viewed from the direction of the arrow K2. FIG. 46 is an enlarged perspective view showing the transfer portion. 47 is a perspective view showing a state in which the sample work is stored in the work storage hole in FIG. 46. FIG. 48A and 48B are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. 49 (a) and 49 (b) are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 50A and 50B are explanatory views of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 51A and 51B are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIG. 52 is a plan view showing a workpiece measuring apparatus according to a third embodiment of the present invention. 53 is a front view of the workpiece measuring device viewed from the direction of arrow N in FIG. FIG. 54 is a perspective view showing a workpiece. 55A, 55B, and 55C are views seen from the directions of arrows C3, D3, and E3 in FIG. 54, respectively. FIG. 56 is an explanatory diagram of a position recognition function in the workpiece measuring apparatus. FIG. 57 is an explanatory diagram of a state where the transfer nozzle is in contact with the workpiece. FIG. 58 is a perspective view in which a sample work is stored in the work storage hole. FIGS. 59A and 59B are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 60A and 60B are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 61A and 61B are explanatory views of a sample work transfer procedure and a transfer completion confirmation method in the work measuring apparatus. FIGS. 62A and 62B are explanatory views of a sample work transfer procedure and a transfer completion confirmation method in the work measuring apparatus. FIGS. 63A and 63B are explanatory views of a sample work transfer procedure and a transfer completion confirmation method in the work measuring apparatus. FIGS. 64A and 64B are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIGS. 65A and 65B are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. 66 (a) and 66 (b) are explanatory diagrams of a sample workpiece transfer procedure and a transfer completion confirmation method in the workpiece measuring apparatus. FIG. 67 is a plan view showing a conventional workpiece measuring apparatus.

DETAILED DESCRIPTION OF THE INVENTION

First Embodiment Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  First, the workpiece measured by the workpiece measuring apparatus and the workpiece measuring method according to the present invention will be described.

  3 is a perspective view of the workpiece W1, and FIGS. 4A, 4B, and 4C are views of the workpiece W1 viewed from the directions of arrows C1, D1, and E1 in FIG. 3, respectively. Furthermore, an electrical circuit diagram of the workpiece W1 is shown in FIG. The work W1 is a light emitting diode (LED). As shown in FIGS. 3 and 4, the workpiece W1 is formed in a hexahedron shape by an insulator, and a light emitting surface W1L covered with a transparent resin is formed in a substantially planar shape on a surface W1f1 which is one surface thereof. Electrodes W1a and W1b made of a conductor project from two surfaces W1f2 and W1f3, which are adjacent to the surface W1f1 and face each other. The correspondence between the electrodes W1a and W1b and the electric circuit of the work W1 is as shown in FIG. That is, when the electrode W1a is an anode and the electrode W1b is a cathode, and a predetermined DC voltage is supplied from a DC voltage source to the workpiece W1 so that the electrode W1a has a higher potential than the electrode W1b, the light emitting diode Dx That is, the light emitting surface W1L in FIG. 3 emits light.

  Thus, since the electrode W1a and the electrode W1b have directionality, it is necessary to identify the direction when the work W1 is viewed from the outside. For this purpose, a cathode mark W1m indicating that the electrode W1b is a cathode is printed at a corner of the surface W1f1 on the side close to the electrode W1b. The length of each side of the hexahedron constituting the workpiece W1 (a1, b1, c1 in FIG. 4) is such that the lengths a1, b1 of the sides of the surface W1f1 on which the light emitting surface W1L is formed are about 5 mm to 7 mm. Products having a short side length c1 of about 2 mm on the surfaces W1f2 and W1f3 from which the electrodes W1a and W1b protrude are commercially available.

  Next, the workpiece measuring apparatus will be described with reference to FIGS.

  The workpiece measuring device 1 has a plurality of workpiece storage holes (holding portions) 4 for holding a workpiece W1 or a sample workpiece W1s, and is a circular transfer table (rotary table) rotatably provided on a table base 2 arranged horizontally. (Conveyance body) 3, separation supply unit (separation supply means) 6 for supplying the workpiece W 1 separately to the workpiece storage holes 4 of the conveyance table 3, and the separation table 6 provided on the downstream side of the separation supply unit 6. A first measurement unit 7a, a second measurement unit 7b, a third measurement unit 7c, a first measurement unit 7a, a second measurement unit 7b that measure the characteristics of the workpiece W1 or the sample workpiece W1s held in the workpiece storage hole 4; A defective workpiece discharge unit 8 and a non-defective workpiece discharge unit 9 are provided which are disposed downstream of the third measurement unit 7c and discharge the workpiece W1 held in the workpiece storage hole 4 of the transfer table 3.

  Among these, the first measuring unit 7a, the second measuring unit 7b, and the third measuring unit 7c constitute a measuring means, and the defective workpiece discharging unit 8 and the non-defective workpiece discharging unit 9 constitute a discharging unit.

  The transport table 3 is intermittently rotated in the direction of the arrow A1 around the central shaft 3a by the action of a drive mechanism (not shown). Each workpiece storage hole 4 is formed in the outer peripheral portion of the transfer table 3 toward the center, and the workpiece storage hole 4 is formed of a recess opening toward the outside of the transfer table 3. The workpiece W1 and the sample workpiece W1s as the workpieces to be shown are individually stored and transported.

  Further, a linear feeder 5 having a linear shape is arranged toward the outer periphery of the transport table 3. The linear feeder 5 vibrates by the action of a drive mechanism (not shown), and has a function of conveying the workpiece W1 in the direction of the arrow B1 in a single row state by this vibration. The terminal portion of the linear feeder 5 is close to the outer peripheral portion of the transfer table 3 and faces the opening of the work storage hole 4 there. At the position where the end portion of the linear feeder 5 and the opening of the workpiece storage hole 4 face each other, as described above, the separation supply for separating the workpieces W on the linear feeder 5 one by one and supplying them individually to the workpiece storage hole 4 A separation supply unit 6 is arranged as a means. A first measuring unit 7a, a second measuring unit 7b as measuring means for measuring various characteristics of the workpiece W1 as described above along the intermittent rotation direction, that is, the direction of the arrow A1 from the separation supply unit 6; The third measurement unit 7c, the defective workpiece discharge unit 8 as discharge means for discharging the workpiece W1 determined to be defective based on the measurement result, from the workpiece storage hole 4, and the workpiece determined to be non-defective based on the measurement result A non-defective workpiece discharge portion 9 as discharge means for discharging W1 from the workpiece storage hole 4 is arranged in this order.

  A sample table 10x as a sample work supply means is disposed between the separation supply unit 6 and the first measurement unit 7a along the intermittent rotation direction of the transfer table 3, that is, the direction of the arrow A1, and the sample table 10x and the transfer table. 3, a transfer unit 10 t that transfers the sample work W <b> 1 s is arranged.

  The sample table 10x and the transfer unit 10t constitute a measurement system confirmation unit 10. The sample table 10x has a circular shape like the transport table 3, and rotates intermittently in the direction of the arrow X1 around the central axis 10xa by the action of a drive mechanism (not shown). In the outer periphery of the sample table 10x, a plurality of workpiece storage holes 11 serving as storage units are formed outwardly like the transfer table 3, and the sample workpiece W1s is stored in the workpiece storage hole 11.

  And the conveyance table 3 which comprises the workpiece | work measuring apparatus 1, the separation supply part 6, the 1st measurement part 7a, the 2nd measurement part 7b, the 3rd measurement part 7c, the defective workpiece discharge part 8, the non-defective workpiece discharge part 9, the sample table A control unit (control device) 12 is installed to control 10x and the transfer unit 10t.

  Since the transfer table 3 rotates intermittently to transfer the workpiece W1, the outer peripheral portion of the transfer table 3 from the separation supply unit 6 to the non-defective workpiece discharge unit 9 has a centrifugal force acting on the workpiece W1 during the intermittent rotation. In order to prevent the workpiece W1 from jumping out of the transfer table 3, a guard wall (not shown) is formed.

  Similarly, a table cover (not shown) is provided above the work storage hole 4 from the separation supply unit 6 to the non-defective work discharge unit 9 in order to prevent the work W1 from jumping out above the transfer table 3 due to vibration during intermittent rotation. Is formed.

  Similarly, since the sample table 10x rotates intermittently and transports the sample work W1s, the sample work W1s is placed on the outer periphery of the sample table 10x due to the centrifugal force acting on the sample work W1s during the intermittent rotation. A guard wall (not shown) is formed in order to prevent it from jumping out. Similarly, a table cover (not shown) for preventing the sample work W1s from jumping out above the sample table 10x due to vibration during intermittent rotation is formed on the upper part of the work storage hole 11 of the sample table 10x.

  FIG. 2 shows an enlarged view of the vicinity of the measurement system confirmation unit 10 in FIG. 1, that is, the one-dot chain line region P1. Both the work storage hole 4 of the transfer table 3 and the work storage hole 11 of the sample table 10x are opened toward the outside of the table, and the respective openings are opposed to the transfer unit 10t side at the transfer position. The workpiece storage hole 4 and the workpiece storage hole 11 in a state where the openings face each other are described as a workpiece storage hole 4t and a workpiece storage hole 11t in FIG. The workpiece storage hole 4 and the workpiece storage hole 11 store the workpiece W1 and the sample workpiece W1s having the shapes shown in FIGS. Here, the sample workpiece W1s is the same as the workpiece W1, and the characteristics thereof, that is, the workpieces whose measurement results in the first measurement unit 7a, the second measurement unit 7b, and the third measurement unit 7c shown in FIG. It is.

  Specifically, the first measurement unit 7a, the second measurement unit 7a, the second measurement unit 7b, and the third measurement unit 7c, using the same and calibrated measurement devices as those used in the first measurement unit 7a, the second measurement unit 7b, and the third measurement unit 7c. 7b, the same measurement as the measurement item in the third measurement unit 7c is performed on the sample work W1s in advance, and the measurement result (reference characteristic) is stored in the storage unit 12a as a storage unit in the control unit 12. . The reference characteristic of the one-piece work W1s can be read from the storage unit 12a under the control of the control unit 12. Further, when the control unit 12 is in the sample measurement mode, the comparison unit 12b that compares the reference characteristic of the sample work W1s and the measurement result of the work W1 and the comparison unit 12b compare them, and the difference between the two exceeds a predetermined value. And an alarm unit 12c that issues an alarm. Further, when the control unit 12 takes the normal measurement mode, the determination unit determines whether the workpiece W1 is a non-defective product or a defective product based on the measurement results obtained by the first measurement unit 7a, the second measurement unit 7b, and the third measurement unit 7c. 12d.

  Next, the work storage hole 4 of the transfer table 3 will be described with reference to FIGS. 6 and 7. FIG. 6 is a perspective view of a state in which the work storage hole 4 is stopped at the separation supply unit 6 in FIG. The work storage hole 4 opens toward the outside of the transfer table 3 disposed horizontally on the table base 2, and the end of the linear feeder 5 shown in FIG. It is not shown in FIG. An air control hole 4a is formed in the wall surface 4w of the work storage hole 4 on the opposite side of the opening, that is, on the central axis 3a (FIG. 1) side of the transfer table 3. The air control hole 4 a communicates with a vacuum generation source 13 installed in the table base 2 through an air passage 6 v formed in the table base 2 in the separation supply unit 6. Then, by the vacuum suction from the vacuum generation source 13 in the direction of the arrow F6, a suction force acts on the wall surface 4w inside the work storage hole 4. In the transfer table 3, the upper surface of the work storage hole 4 is open, but in the separation supply unit 6, the upper surface of the work storage hole 4 and the upper surface of the end portion of the linear feeder 5 are covered with a cover (not shown). . Due to the presence of this cover, the inside of the work storage hole 4 is substantially sealed, and the suction force acts efficiently.

  Next, the operation of the present embodiment having such a configuration, that is, a workpiece measuring method will be described.

  In FIG. 1, workpieces W1 are put together in a parts feeder (not shown). Then, by the action of the direction detection mechanism (not shown), the light emitting surface W1L shown in FIG. 3 is oriented upward, and the electrode W1b is aligned in the direction of the workpiece, that is, the direction of the arrow B1 shown in FIG. Line up in a row on the feeder 5. As described above, the linear feeder 5 vibrates by the action of a drive mechanism (not shown), and the workpiece W1 is conveyed in the direction of the arrow B1 in a single row aligned in the above-described direction due to this vibration. And the workpiece | work W1 which reached | attained the position which opposes the opening part of the workpiece | work storage hole 4 of the conveyance table 3 which has stopped is isolate | separated one by one by the effect | action of the separation mechanism which is not illustrated in the separation supply part 6, FIG. The workpieces are individually accommodated in the workpiece accommodation holes 4 by vacuum suction in the direction indicated by the arrow F6.

  FIG. 7 shows a perspective view of the work W1 stored in the work storage hole 4 in this manner. At this time, since the direction of the workpiece W1 is previously aligned on the linear feeder 5 as described above, the workpiece W1 has the light emitting surface W1L facing upward, and the electrode W1b (cathode mark W1m) is the rotation axis of the transport table 3. In the state close to 3a (FIG. 1), the workpiece is accommodated in the workpiece accommodation hole 4.

  Next, the transfer table 3 rotates intermittently in the direction of the arrow A1 shown in FIG. 1, and the workpiece W1 stored in the workpiece storage hole 4 in the separation supply unit 6 passes through the transfer unit 10t and is transferred to the first measurement unit 7a. Stop. And the wavelength measurement of the workpiece | work W1 is implemented using the DC power supply and wavelength meter which are not illustrated. Next, the workpiece W1 that has reached the second measuring unit 7b and stopped by intermittent rotation of the transfer table 3 performs luminance measurement of the workpiece W1 using a DC power source and a luminance meter (not shown). And the workpiece | work W1 which reached | attained the 3rd measurement part 7c by intermittent rotation of the conveyance table 3, and stopped was implemented using the source meter and multi-channel spectrometer which are not shown in figure, and implement | achieves the total light flux of the workpiece | work W1.

  When the above measurement is completed, based on the measurement results from the first measurement unit 7a, the second measurement unit 7b, and the third measurement unit 7c, the control unit 12 determines whether the workpiece W1 is a non-defective product or a defective product by the determination unit 12d. To do. Corresponding to the determination result, the workpiece W1 in the workpiece storage hole 4 is discharged at the defective workpiece discharge unit 8 or the non-defective workpiece discharge unit 9 by intermittent rotation of the transfer table 3. All the workpiece storage holes 4 are emptied in the non-defective workpiece discharge unit 9, and the workpiece W1 is stored again in the empty workpiece storage hole 4 that has reached the separation supply unit 6 by intermittent rotation of the transfer table 3. Is repeated. The series of operations described above is called a normal measurement mode, and is all executed based on the control of the control unit 12.

  Here, the control unit 12 includes a timer 12e having a time counting function, and counts the operation time in the normal measurement mode. When the operation time reaches a predetermined time, the normal measuring mode is interrupted by the automatic switching means 12f, and the measuring devices arranged in the first measuring unit 7a, the second measuring unit 7b, and the third measuring unit 7c. Shift to the sample measurement mode to check the measurement accuracy of the measurement system including.

  In the sample measurement mode, the sample work W1s stored in advance in the work storage hole 11 of the sample table 10x is transferred from the transfer unit 10t to the work storage hole 4 of the transfer table 3, and the work supply hole from the separation supply unit 6 is transferred. As in the case of the workpiece W1 supplied to 4, the first measuring unit 7a, the second measuring unit 7b, and the third measuring unit 7c perform measurement while conveying the sample by intermittent rotation of the conveying table 3, and obtain the measurement result as data. To do. However, the sample workpiece W1s is not discharged from the workpiece storage hole 4 in the defective workpiece discharge portion 8 or the non-defective workpiece discharge portion 9 based on the measurement result, and the sample workpiece W1s is transferred again by intermittent rotation of the transfer table 3. When 10t is reached, the sample work W1s stored in the work storage hole 4 of the transfer table 3 is transferred to the work in which the sample work W1s is stored in advance among the work storage holes 11 of the sample table 10x in the transfer unit 10t. Re-store in the storage hole 11. That is, in the present embodiment, the timing at which data of the sample work W1s is acquired for calibration of the measuring instrument is automatically set by a program that operates the work measuring apparatus 1.

  Here, regarding the function of recognizing the position of the work storage hole 4 of the transfer table 3 and the work storage hole 11 of the sample table 10x, which is a precondition when the measuring apparatus 1 operates in the sample measurement mode, FIGS. ) And (c).

  FIG. 8A is a schematic diagram of a total of 16 workpiece storage holes 4 formed in the transfer table 3 shown in FIG. 1 and a total of 8 workpiece storage holes 11 formed in the sample table 10x. . However, in order to make the drawing easy to see, only the transport table 3, the sample table 10x, the linear feeder 5, and the transfer unit 10t are shown in FIG. 8A among the units shown in FIG. In FIG. 1, the transfer table 3 and the sample table 10x are arranged very close to each other in the transfer unit 10t. However, in FIG. 8A, for convenience of description, both tables are displayed in the transfer unit 10t. They are spaced apart.

  First, the numbers assigned to the workpiece storage holes in FIG. A total of 16 workpiece storage holes 4 of the transfer table 3 are formed as described above. Numbers <1> to <16> written on the center axis 3a side of the transfer table 3 in each workpiece storage hole 4 indicate the position where the workpiece storage hole 4 exists, that is, the fixed position unrelated to intermittent rotation of the transfer table 3. Show. The position facing the terminal portion of the linear feeder 5 is <1>, and the workpiece W1 shown in FIG. 3 is moved in the direction of the arrow G1 by the action of the separation feeder 6 (FIG. 1) from the linear feeder 5 at the position <1>. It is stored in the work storage hole 4. Thereafter, the numbers in <1, 2,..., Increase by 1 in the intermittent rotation direction of the transfer table 3, that is, in the direction of arrow A1, and return to <1> after the maximum value <16>. For example, the position of the transfer unit 10t is represented by <3>.

  On the other hand, numbers (1) to (16) described on the outside of the transfer table 3 in each workpiece storage hole 4 are hole numbers assigned to the workpiece storage holes 4 individually. That is, the hole number changes in position corresponding to the intermittent rotation of the transport table 3, and is given so as to increase clockwise. Specific examples of the position and the hole number are as follows.

  In FIG. 8 (a), the workpiece storage hole 4 to which the hole number (1) is assigned exists at the position <1>. From this state, when the transfer table 3 rotates once in the direction of arrow A1 and stops, the workpiece storage hole 4 assigned with the hole number (1) moves to the position <2>, and at the same time the position <1> In 8 (a), the workpiece storage hole 4 assigned with the hole number (16) moves.

The above-mentioned position and hole number assigning rules are the same for the work storage holes 11 of the sample table 10x. In the sample table 10x, the positions are represented by 1 to 8 , and the hole numbers are represented by [1] to [8]. In the positions 1 to 8 , the numbers 1 , 2 ,... Increase in the intermittent rotation direction of the sample table 10x, that is, in the direction of the arrow X1, and the hole numbers [1] to [8] increase clockwise. Position 1 is the position of the work storage hole 11 in the transfer section 10t, and there is a work storage hole 11 with a hole number [8]. That is, in the transfer part 10t, the work storage hole 4 at position <3> on the transfer table 3 and the work storage hole 11 at position 1 on the sample table 10x face each other. As will be described later, when the workpiece measuring apparatus 1 operates in the sample measurement mode, the sample workpiece W1s moves in the direction of the arrow H1 from the workpiece storage hole 11 at the position 1 toward the workpiece storage hole 4 at the position <3>. The sample work W1s is transferred in the direction of the arrow J1 from the work storage hole 4 at the position <3> toward the work storage hole 11 at the position 1. 2 and the text quoting FIG. 2 in which the position and the hole number are not described, the workpiece storage hole 4 of the transfer table 3 and the workpiece storage hole 11 of the sample table 10x facing each other in the transfer unit 10t. These are indicated as workpiece storage holes 4t and 11t, respectively.

  Here, the state in which the transfer table 3 and the sample table 10x are stopped corresponding to the positions and the hole numbers of the work storage holes 4 and the work storage holes 11 as shown in FIG. 8A is referred to as an initial state. And the control part 12 shown in FIG. 1 controls so that it will be in an initial state whenever the power of the workpiece | work measuring apparatus 1 is turned on.

  From the above description, in the workpiece measuring apparatus 1 in operation, all the workpiece storage holes 4 and the workpiece storage holes 11 can be individually identified by their hole numbers and their positions can be identified. Recognize. That is, the control unit 12 can individually identify the workpiece W1 or the sample workpiece W1s stored in the workpiece storage hole 4 and the workpiece storage hole 11, respectively. Based on the identification information, the control unit 12 executes various controls.

FIGS. 8A and 8C show a table showing the correspondence between the positions of the work storage holes 4 and the work storage holes 11 in the initial state and the hole numbers. FIG. 8B shows the work storage hole 4, and FIG. 8C shows the work storage hole 11. In the data column of each table shown in FIGS. 8B and 8C, the work W1 (sample work Ws1) stored in the work storage holes 4 and 11 to which the hole numbers are assigned is individually identified. Describe. Here, for convenience, “-” indicating that the work accommodation hole is empty is described in all the data columns. Further, at positions <1> and <3> in FIG. 8B and at position 1 in FIG. 8C, arrows corresponding to the arrows G1, H1, and J1 in FIG. .

  FIG. 9 shows an enlarged perspective view of the transfer unit 10t in FIG. Here, the direction of the transfer table 3 in FIG. 9 is the same as that in FIG. In the transfer section 10t, the work storage holes 4t of the transfer table 3 and the work storage holes 11t of the sample table 10x are opposed to each other with a very small gap. The air control hole 4a formed in the wall surface 4w of the work storage hole 4t on the side of the center axis 3a (FIG. 1) of the transfer table 3 passes through the air passage 10p2 formed in the table base 2 in the transfer portion 10t. The switching valve 14a communicates. The switching valve 14a has a function of selecting three switching modes x1, x2, and x3.

  In the switching mode x1, the vacuum generation source 13 installed in the table base 2 is selected. At this time, the air passage 10p2 communicates with the vacuum generation source 13, and the work storage hole 4t extends from the air control hole 4a to the arrow V102. Vacuum sucked in the direction. Further, the switching mode x2 selects the compressed air generation source 15 installed in the table base 2. At this time, the air passage 10p2 communicates with the compressed air generation source 15, and passes through the air control hole 4a to the work storage hole 4t. Compressed air is ejected in the direction of arrow C102. Further, since nothing is selected in the switching mode x3, the air passage 10p2 does not communicate anywhere, and the work storage hole 4t is kept at atmospheric pressure.

  Further, in the transfer portion 10t, a sensor passage 10s2 is formed in the table base 2 where the work storage hole 4t is located. In the table base 2 below the sensor passage 10s2, an optical sensor light source 4La (FIGS. 28 to 35), which will be described later, is arranged, which is not shown in FIG. 9, and is directed toward the work storage hole 4t. Send upward light.

  The configuration and operation related to the workpiece storage hole 4t are the same for the workpiece storage hole 11t facing the workpiece storage hole 4t in the transfer portion 10t.

  The air control hole 11a formed in the wall surface 11w of the work storage hole 11t on the central axis 10xa (FIG. 1) side of the sample table 10x passes through the air passage 10p1 formed in the table base 2 in the transfer portion 10t. The switching valve 14b communicates. Then, when the switching valve 14b selects the switching mode x1, x2, x3, similarly to the work storage hole 4t, the work storage hole 11t is vacuum-sucked in the direction of the arrow V101, and the work storage hole 11t has an arrow. Compressed air is ejected in the direction of C101, and the inside of the work storage hole 11t is kept at atmospheric pressure.

  In the transfer portion 10t, a sensor passage 10s1 is formed in the table base 2 where the work storage hole 11t is located. In the table base 2 below the sensor passage 10s1, an optical sensor light source 11La (FIGS. 28 to 35) described later is arranged, which is not shown in FIG. 9, and the optical sensor light source 4La (FIG. 28) is arranged. The light is transmitted in the same manner as in FIG.

  In the transfer part 10t shown in FIG. 9, a perspective view in which the sample work W1s is stored in the work storage hole 11t is shown in FIG. The switching valve 14a selects the switching mode x3, and the switching valve 14b selects the switching mode x1. For this reason, the sample work W1s is vacuum-sucked in the direction of the arrow V101 and is held in the work storage hole 11t. Further, the sample work W1s at this time is in a state in which the light emitting surface W1L faces upward and the electrode W1a (anode) faces the wall surface 11w. From this state, when the sample is transferred to the workpiece storage hole 4t facing the workpiece storage hole 11t, the direction of the sample workpiece W1s coincides with the direction of the workpiece W1 shown in FIG.

  The transfer of the sample work W1s in the transfer unit 10t will be described in detail with reference to FIGS.

  11 (a), (b), (c) to FIGS. 27 (a), (b), and (c) are enlarged views of the alternate long and short dash line region P1 in FIG. 1, and the positions and hole numbers shown in FIG. It is the schematic diagram which showed the mode of the movement of the workpiece | work in each workpiece | work storage hole correspondingly.

  Here, in FIGS. 11 (a), (b), (c) to FIGS. 27 (a), (b), and (c) and the corresponding explanation, all 16 workpiece storage holes 4 of the transfer table 3 are designated by the hole numbers. The storage holes (1), work storage holes (2),... Similarly, all the eight workpiece storage holes 11 of the sample table 10x are individually identified by being described as a workpiece storage hole [1], a workpiece storage hole [2],. Further, the workpiece W1 (FIG. 7) conveyed by the linear feeder 5 and conveyed by the conveyance table 3 in the normal measurement mode is individually distinguished by a notation such as 1, 2,. Similarly, the sample work W1s (FIG. 10) stored in the sample table 10x in the normal measurement mode and transported by the transport table 3 in the sample measurement mode is individually distinguished by notation such as a, b,. To do.

  In the present embodiment, the number of sample workpieces W1s is four. FIG. 11 shows the initial state shown in FIG. That is, the work storage hole (1) is stopped at the position <1>. At this time, the work storage holes (1) to (16) of the transfer table 3 are all empty, and this state is applied to all the data columns from the hole numbers (1) to (16) in FIG. This is expressed by describing "-" indicating that the work storage hole is empty.

  In addition, the sample work a is stored in the work storage hole [1] of the sample table 10x, and similarly, the sample work b, c, d is stored in the work storage holes [2], [3], and [4], respectively. ing. This state is represented by writing a, b, c, and d in the data columns of the hole numbers [1], [2], [3], and [4] in FIG.

  For the sample table 10x as well, data corresponding to an empty work storage hole is described as “−”. In FIG. 11A, the workpieces 1, 2, and 3 are sequentially arranged on the linear feeder 5 in order from the side close to the transfer table 3. Although not shown, a large number of workpieces W1, such as workpieces 4, 5,... Are further arranged in a line on the left side of the workpiece 3, and conveyed by the linear feeder 5 in the direction of arrow B1 in FIG. Has been.

  Next, as shown in FIG. 12A, after the workpiece 1 on the linear feeder 5 is separated by the action of the separation supply unit 6 in FIG. 1, the vacuum suction in the direction of arrow F6 in FIG. It moves in the direction indicated by arrow G1 in (a) and is stored in the work storage hole (1) of the transfer table 3. In FIG. 12B, this state is represented by indicating an arrow G1 on the left side of the row corresponding to the position <1> and the hole number (1), and setting the data to 1.

  In this state, the normal measurement mode is started, and the transfer table 3 is intermittently rotated in the direction of the arrow A1 in FIG. When the transfer table 3 stops, the empty work storage hole (16) stops at the position <1>, and the work 2 is stored there. Similarly, the transfer table 3 is intermittently rotated in the direction of the arrow A1 in FIG. 1, the empty work storage hole (15) is stopped at the position <1>, and the work 3 is stored there. The state at this time is shown in FIG.

  At the position <1>, the work storage hole (15) stops and the work 3 is stored in the direction of the arrow G1. The workpiece storage holes (1) and (16) in which the workpieces 1 and 2 have been stored so far have moved to positions <3> and <2>, respectively. At this time, the workpiece storage hole (1) is stopped at the position <3>, that is, the transfer unit 10t. However, since the workpiece storage hole (1) is in the normal measurement mode, there is no action of the transfer unit 10t on the workpiece storage hole (1).

  After the state shown in FIG. 13, the workpieces W1 are successively stored in the empty workpiece storage holes of the transfer table 3 from the linear feeder 5 at the position <1>. Then, the workpiece W1 is conveyed by intermittent rotation of the conveyance table 3, and after being subjected to various measurements as described above, it is discharged from the conveyance table 3. Then, the work storage hole emptied again by discharging reaches position <1>, and the same operation is repeated. These are all carried out under the control of the control unit 12 shown in FIG.

  By the way, as described above, in the workpiece measurement apparatus 1, the timing at which data acquisition of the sample workpiece W1s is performed in order to confirm the measurement accuracy of the first measurement unit 7a, the second measurement unit 7b, and the third measurement unit 7c is It is automatically set by a program for operating the workpiece measuring apparatus 1.

  For this reason, when the timer 12e detects from the time count that the normal measurement mode as described above has continued for a predetermined time, the control unit 12 determines that the timing has arrived. And it controls so that it may transfer to the sample measurement mode which acquires the data of sample work W1s. The operation will be described in detail below.

  First, at the above timing, the operation of the separation supply unit 6 shown in FIG. 1 is stopped. As a result, the workpiece W1 is not newly stored in the workpiece storage hole 4 of the transfer table 3. And the workpiece | work W1 accommodated in the workpiece | work storage hole 4 of the conveyance table 3 before the said timing is the 1st measurement part 7a, the 2nd measurement part 7b, and the 3rd measurement part which are shown in FIG. The operation is sequentially stopped at 7c, and predetermined measurements are performed. And based on those measurement results, the defective workpiece discharge section 8 or the non-defective workpiece discharge section 9 is discharged from the workpiece storage hole 4.

  At this point, all the work storage holes 4 of the transfer table 3 are emptied. And the conveyance table 3 stops in an initial state. This is shown in FIGS. 14 (a), (b) and (c). In FIG. 14A, the workpiece storage hole (1) is stopped at the position <1>, and workpieces W1 that are not stored in the workpiece storage hole 4 of the transfer table 3 are arranged on the linear feeder 5. A number is assigned to the head work, but this is an example, and the number is not limited to this number. Moreover, as shown in FIG.14 (b), all the workpiece | work storage holes (1) thru | or (16) are empty.

  Thus, the transition from the normal measurement mode to the sample measurement mode is completed. From here, the sample measurement mode starts. First, the transfer table 3 rotates intermittently, and the workpiece storage hole (1) reaches the position <3>. This is shown in FIGS. 15 (a), (b) and (c). Next, the sample table 10x rotates intermittently in the direction of the arrow X1 in FIG. 1, and the work storage hole [1] in which the sample work a is stored reaches position 1 and stops. This is shown in FIGS. 16 (a), 16 (b) and 16 (c).

As shown in FIGS. 16A, 16B, and 16C, the position where the position <3> and the position 1 face each other is the transfer unit 10t. As can be seen from FIG. 16A, the transfer unit 10t The workpiece storage hole (1) of the transfer table 3 in which no workpiece is stored faces the workpiece storage hole [1] of the sample table 10x in which the sample workpiece a is stored.

  FIGS. 28A and 28B are perspective views of the transfer part 10t as viewed from the direction of the arrow K1 in FIG. 16A, with regard to the procedure for transferring the sample workpiece a from this state and the transfer completion confirmation method. It demonstrates using thru | or FIG. 31 (a) (b). FIG. 28A is a perspective view corresponding to FIG. 16A, and FIG. 10 is a perspective view thereof. In FIG. 10, the switching valve 14a selects the switching mode x3, and the switching valve 14b selects the switching mode x1. For this reason, the inside of the work storage hole 4t is maintained at atmospheric pressure, and the work storage hole 11t is vacuum-sucked in the direction of the arrow V101.

  That is, in FIG. 28A, the sample work W1s (a) is stored in the work storage hole 11t, and is positioned immediately above the sensor passage 10s1 formed in the table base 2 immediately below the work storage hole 11t.

  In addition, in FIG. 28 (a) (b) thru | or FIG. 31 (a) (b), the description of sample work W1s (a) is used, but this is the sample in FIG. 16 (a) (b) (c). It is intended to correspond to the workpiece (a). Here, an optical sensor light source 11La is disposed in the table base 2 below the sensor passage 10s1, and sends upward detection light L11 toward the work storage hole 11t. On the other hand, an optical sensor 11Lb is disposed above the workpiece storage hole 11t and at a position facing the optical sensor light source 11La.

  In this case, the detection light L11 is blocked by the sample work W1s (a) stored in the work storage hole 11t and is not detected by the optical sensor 11Lb. On the other hand, an optical sensor light source 4La is disposed in the table base 2 below the sensor passage 10s2 formed in the table base 2 immediately below the workpiece storage hole 4t facing the workpiece storage hole 11t in the transfer portion 10t. The upward detection light L4 is sent out into the work storage hole 4t. On the other hand, an optical sensor 4Lb is disposed above the workpiece storage hole 4t and at a position facing the optical sensor light source 4La.

  In this case, the detection light L4 is detected by the optical sensor 4Lb because the sample work W1s (a) is not stored in the work storage hole 4t. Thus, when the detection light L11 is not detected by the optical sensor 11Lb and the detection light L4 is detected by the optical sensor 4Lb, it can be seen that the sample work W1s (a) is stored in the sample table 10x.

  This relationship is shown in FIG. The above-described optical sensor light source 11La, optical sensor 11Lb, optical sensor light source 4La, and optical sensor 4Lb constitute transfer detection means.

  FIGS. 29A, 29B, 31A, and 31B show how the sample work W1s (a) is transferred from the sample table 10x to the transfer table 3 from the state shown in FIG. First, in FIGS. 29 (a) and 29 (b), the switching valve 14b selects the switching mode x2, the air passage 10p1 communicates with the compressed air generation source 15, and the compressed air is ejected in the direction of the arrow C101. At the same time, the switching valve 14a selects the switching mode x1, the air passage 10p2 communicates with the vacuum generation source 13, and vacuum suction is performed in the direction of the arrow V102. For this reason, the sample work W1s (a) starts to move in the direction of the arrow H1. FIG. 29B shows the correspondence between the detection states of the detection light L11 and the detection light L4.

  As shown in FIG. 29B, the sample work W1s (a) is moving, and the detection states of the detection light L11 and the detection light L4 are the same as those in FIG. FIG. 30A shows a state when a little time has elapsed from the state of FIG. The sample work W1s (a) continues to move in the direction of the arrow H1 and reaches a substantially intermediate point between the work storage hole 11t and the work storage hole 4t. At this time, the sample work W1s (a) is separated from the position immediately above the sensor passage 10s1, and the detection light L11 is detected by the optical sensor 11Lb. This relationship is shown in FIG.

  Thereafter, the sample work W1s (a) is stored in the work storage hole 4t, and is positioned on the sensor passage 10s2 as shown in FIG. For this reason, the detection light L4 emitted from the optical sensor light source 4La disposed in the table base 2 below the sensor passage 10s2 into the work storage hole 4t is blocked by the sample work W1s (a), It is no longer detected by the sensor 4Lb. This relationship is shown in FIG. In this way, in the transfer unit 10t, information on whether the detection light L11 and the detection light L4 are detected by the optical sensor 11Lb and the optical sensor 4Lb or not detected can be transmitted to the control unit 12 shown in FIG. For example, when the information changes from FIG. 28 (b) to FIG. 31 (b) through FIG. 29 (b) and FIG. 30 (b), the control unit 12 samples the sample work W1s (a). It can be determined that the table 10x has been transferred to the transfer table 3.

  Here, schematic diagrams corresponding to FIGS. 31 (a) and 31 (b) are shown in FIGS. 17 (a), 17 (b), and 17 (c). That is, FIG. 31A is a perspective view of FIG. 17A viewed from the direction of the arrow K1.

17A, 17B, and 17C, the sample work a moves in the direction of the arrow H1 shown in the transfer portion 10t, and the work storage hole (1) of the transfer table 3 from the work storage hole [1] of the sample table 10x. It has been transferred to 1). This transfer state is indicated by an arrow H1 from position 1 (hole number [1]) in FIG. 17C to position <3> (hole number (1)) in FIG. 17B. When the transfer of the sample work a is completed in this way, both the transfer table 3 and the sample table 10x rotate intermittently. Then, as shown in FIG. 18 (a), an empty work storage hole (16) and a work storage hole [2] storing the sample work b arrive at the transfer part 10t and face each other. Then, the sample work b is transferred from the work storage hole [2] of the sample table 10x to the work storage hole (16) of the transfer table 3 in the same manner as the sample work a described above. FIGS. 19A, 19B, and 19C show the state when the transfer is completed.

  Thereafter, similarly, the transfer table 3 and the sample table 10x rotate intermittently, and the sample works c and d are sequentially transferred in the transfer unit 10t. FIGS. 20A, 20B, and 20C show the state when the transfer of the sample work d is completed. 20A, 20B, and 20C, all the sample works a to d are transferred from the sample table 10x to the transport table 3. Next, the conveyance table 3 rotates intermittently, and these sample works a to d sequentially reach the first measurement unit 7a, the second measurement unit 7b, and the third measurement unit 7c shown in FIG. To do. In each measurement unit, the same wavelength measurement, luminance measurement, and total luminous flux measurement as those for the workpiece W1 as the workpiece to be measured are performed on each of the sample workpieces a to d.

  At that time, as described with reference to FIG. 8A, each of the sample works a to d is stored in the work storage holes (1), (16), (15) and (14) of the transfer table 3, respectively. The control unit 12 recognizes that For this reason, the measurement result in the 1st measurement part 7a, the 2nd measurement part 7b, and the 3rd measurement part 7c regarding each sample work ad can be recognized separately by the control part 12. FIG.

  The sample workpieces a to d on which various measurements have been performed in this way pass through the defective workpiece discharge unit 8 and the non-defective workpiece discharge unit 9 by the intermittent rotation of the transfer table 3, and reach the transfer unit 10t again. Then, under the control of the control unit 12, the sample workpieces a to d are transferred from the workpiece storage holes (1), (16), (15), and (14) of the transfer table 3 in the transfer unit 10t. d is stored again in the workpiece storage holes [1], [2], [3], and [4] of the sample table 10x stored in advance. This will be described with reference to FIGS. 21 (a), (b), and (c) to FIGS. 27 (a), (b), and (c).

  21 (a), 21 (b) and 21 (c) show that the sample work a stored in the work storage hole (1) of the transfer table 3 and subjected to various measurements is transferred to the transfer section 10t by intermittent rotation of the transfer table 3. It shows the situation when it arrives. The hole number of the work storage hole of the sample table 10x facing the work storage hole (1) of the transfer table 3 in the transfer section 10t is [4], which means that the sample work d is transferred from the sample table 10x to the transfer table 3. This corresponds to FIGS. 20A, 20B and 20C showing the state where the loading is completed.

  Next, the sample table 10x is intermittently rotated in the direction of the arrow X1 in FIG. 1, and as shown in FIGS. 22 (a), (b), and (c), the work storage hole with the hole number [1] is formed in the transfer portion 10t. It faces the work storage hole (1) of the transfer table 3.

  32 (a) to (b) through FIG. 35, which are perspective views of the transfer part 10t as viewed from the direction of the arrow K1 in FIG. 22 with respect to the procedure for transferring the sample work a from this state and the transfer completion confirmation method. (A) It demonstrates using (b). Note that the function of each part shown in FIGS. 32 (a) (b) through 35 (a) (b) has already been described in the description of FIGS. 28 (a) (b) through 31 (a) (b). Because it is, it is omitted.

  FIG. 32A is a perspective view corresponding to FIG. In FIG. 32A, the switching valve 14a selects the switching mode x1, and the switching valve 14b selects the switching mode x3. For this reason, the work storage hole 4t is vacuum-sucked in the direction of arrow V102, and the work storage hole 11t is maintained at atmospheric pressure. Since the sample work W1s (a) is stored in the work storage hole 4t, the upward detection light L4 transmitted by the optical sensor light source 4La is blocked by the sample work W1s (a) and is not detected by the optical sensor 4Lb. .

  On the other hand, since the sample workpiece W1s (a) is not stored in the workpiece storage hole 11t facing the workpiece storage hole 4t in the transfer unit 10t, the upward detection light L11 sent out by the optical sensor light source 11La is the optical sensor 11Lb. Is detected. Therefore, it can be seen that the sample work W1s (a) is stored in the transfer table 3. This relationship is shown in FIG.

  FIGS. 33 (a) (b) to 35 (a) (b) show how the sample work W1s (a) is transferred from the transfer table 3 to the sample table 10x from the state of FIG. 32 (a). First, in FIG. 33A, the switching valve 14a selects the switching mode x2, the air passage 10p2 communicates with the compressed air generation source 15, and the compressed air is ejected in the direction of the arrow C102. At the same time, the switching valve 14b selects the switching mode x1, the air passage 10p1 communicates with the vacuum generation source 13, and vacuum suction is performed in the direction of the arrow V101. For this reason, the sample work W1s (a) starts moving in the direction of the arrow J1.

  FIG. 33B shows this state corresponding to the detection states of the detection light L4 and the detection light L11. The sample work W1s (a) is moving, and the detection states of the detection light L4 and the detection light L11 are the same as those in FIG. FIG. 34 (a) shows a state when a little time has elapsed from the state of FIG. 33 (a).

  As shown in FIG. 34 (a), the sample work W1s (a) continues to move in the direction of the arrow J1, and reaches a substantially intermediate point between the work storage hole 4t and the work storage hole 11t. At this time, the sample work W1s (a) is separated from the position immediately above the sensor passage 10s2, and the detection light L4 is detected by the optical sensor 4Lb. This relationship is shown in FIG.

  Thereafter, the sample work W1s (a) is stored in the work storage hole 11t, and is positioned on the sensor passage 10s1 as shown in FIG. For this reason, the detection light 11 emitted from the optical sensor light source 11La toward the workpiece accommodation hole 11t is blocked by the sample workpiece W1s (a) and is not detected by the optical sensor 11Lb. This relationship is shown in FIG.

  In the transfer unit 10t, information on whether the detection light L4 and the detection light L11 are detected by the optical sensor 4Lb and the optical sensor 11Lb or not detected is transmitted to the control unit 12 shown in FIG. When the information changes from the state shown in FIG. 32 (b) to the state shown in FIG. 35 (b) through FIGS. 33 (b) and 34 (b), the control unit 12 indicates that the sample work W1s (a) is transferred to the transfer table 3. It can be determined that the sample has been transferred to the sample table 10x.

Here, schematic diagrams corresponding to FIGS. 35A and 35B are shown in FIGS. That is, FIG. 35A is a perspective view of FIG. 23A viewed from the direction of the arrow K1. In FIG. 23 (a), the sample work a moves in the direction of arrow J1 shown in the transfer section 10t, and is transferred from the work storage hole (1) of the transfer table 3 to the work storage hole [1] of the sample table 10x. ing. This transfer state is indicated by an arrow J1 from position <3> (hole number (1)) in FIG. 23 (b) to position 1 (hole number [1]) in FIG. 23 (c).

  When the transfer of the sample work a is completed in this way, both the transfer table 3 and the sample table 10x rotate intermittently. Then, as shown in FIG. 24 (a), the workpiece storage hole (16) storing the sample workpiece b and the empty workpiece storage hole [2] reach the transfer portion 10t and face each other. Then, the sample work b is transferred from the work storage hole (16) of the transfer table 3 to the work storage hole [2] of the sample table 10x in the same manner as the sample work a described above. FIGS. 25A, 25B and 25C show the state when the transfer is completed.

  Thereafter, similarly, the transfer table 3 and the sample table 10x rotate intermittently, and the sample works c and d are sequentially transferred in the transfer unit 10t. FIGS. 26A, 26B, and 26C show the state when the transfer of the sample work d is completed.

  26A, 26B, and 26C, all the sample workpieces a to d are transferred from the transfer table 3 to the sample table 10x. The transfer destinations of the sample workpieces a to d in the sample table 10x coincide with the workpiece storage holes in which they are stored in advance.

  As described above, when all the sample works are transferred to the sample table 10x, the control unit 12 measures each of the first measurement unit 7a, the second measurement unit 7b, and the third measurement unit 7c shown in FIG. The comparison unit 12b compares the measurement result of the sample workpiece W1 with the known measurement result (reference characteristic) of each sample workpiece W1s stored in advance in the storage unit 12a in the control unit 12. And about the measurement part from which the difference of both measurement results was outside the standard value (predetermined value) prescribed | regulated beforehand, an alarm is displayed from the alarm part 12c, or an alarm sound is emitted, and it is arrange | positioned at the said measurement part. Notify the operator to calibrate the measuring instrument.

  Thus, the sample measurement mode ends, and the workpiece measurement apparatus 1 stops operating. If the operator receives the above notification, the operator turns off the workpiece measuring apparatus 1, calibrates the measuring instrument to be calibrated, and then turns on the power again to activate the workpiece measuring apparatus 1. The activated workpiece measurement apparatus 1 resumes operation in the normal measurement mode.

  Further, if there is no notification as described above and there is no need to calibrate the measuring instrument, the operator turns off the power of the workpiece measuring device 1 and then immediately turns on the power to activate the workpiece measuring device 1. Or you may start the workpiece | work measuring apparatus 1 by pushing down the pushbutton switch for starting, with the power supply turned on. In either case, the activated workpiece measurement apparatus 1 resumes operation in the normal measurement mode.

  As described above, according to the present embodiment, the measurement accuracy of the first measurement unit 7a, the second measurement unit 7b, and the third measurement unit 7c can be easily and easily confirmed.

Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIGS.

  FIG. 36 is a front view showing a workpiece measuring apparatus 21 to which the present invention is applied. The workpiece measuring device 21 has a circular transfer table 23 as a transfer body rotatably arranged adjacent to a vertically arranged table base 22, and the transfer table 23 is centered by the action of a drive mechanism (not shown). It rotates intermittently in the direction of arrow A2 around the shaft 23a.

  In the vicinity of the outer periphery of the transfer table 23, a plurality of work storage holes 24 as holding parts are formed so as to penetrate both sides of the transfer table 23. That is, the work storage hole 24 opens on one surface and the other surface of the transfer table 23, and a work W2 as a work to be measured, which will be described later, and a sample work W2s having the same shape as the work W2 are individually stored and transferred. .

  As shown in FIG. 37, a linear linear feeder 25 is disposed horizontally toward one surface of the transport table 23. The linear feeder 25 vibrates due to the action of a drive mechanism (not shown), and has a function of transporting the workpiece W2 toward one surface of the transport table 23 in a single row state due to the vibration. The end portion of the linear feeder 25 is close to one surface of the transfer table 23 and faces the opening of the work storage hole 24 there. Separation as separation supply means for separating the workpieces W2 on the linear feeder 25 one by one and supplying them individually to the workpiece storage holes 24 at positions where the end of the linear feeder 25 and the opening of the workpiece storage holes 24 face each other. A supply unit 26 is arranged. A first measurement unit 27a, a second measurement unit 27b as measurement means for measuring various characteristics of the workpiece W2 along the intermittent rotation direction of the transfer table 23 from the separation supply unit 26, that is, the arrow A2 direction, and measurement results , A workpiece discharge unit 28 serving as a discharge unit that discharges the workpiece W2 determined to be defective from the workpiece storage hole 24, and discharge of the workpiece W2 determined to be non-defective based on the measurement result from the workpiece storage hole 24. A non-defective work discharge unit 29 as a means is arranged in this order.

  Further, a sample table 30x as a sample work supply means is disposed between the separation supply unit 26 and the first measurement unit 27a along the intermittent rotation direction of the transfer table 23, that is, the direction of the arrow A2, and the sample table 30x is transferred with the sample table 30x. Between the table 23, the transfer part 30t which transfers sample work W2s is arrange | positioned.

  The sample table 30x and the transfer unit 30t constitute a measurement system confirmation unit 30. The sample table 30x has a circular shape like the transport table 23, and rotates intermittently in the direction of the arrow X2 around the central axis 30xa by the action of a drive mechanism (not shown). A plurality of work storage holes 31 as storage portions having the same shape as the transfer table 23 are formed in a portion near the outer periphery of the sample table 30x, and the sample work W2s is stored in the work storage holes 31.

  And the conveyance table 3 which comprises the workpiece | work measuring apparatus 21, the separation supply part 26, the 1st measurement part 27a, the 2nd measurement part 27b, the defective workpiece discharge part 28, the non-defective work discharge part 29, the sample table 30x, and the transfer part A control unit 32 for controlling 30t is installed.

  Since the transfer table 23 is intermittently rotated to transfer the workpiece W2, the one surface side of the transfer table 23 from the separation supply unit 26 to the non-defective workpiece discharge unit 29 is caused by vibration acting on the workpiece W2 during the intermittent rotation. In order to prevent the workpiece W2 from jumping out of the transfer table 23, a table cover (not shown) is formed.

  FIG. 37 is a plan view of the workpiece measuring device 21 as viewed from the direction of arrow M in FIG. However, for the sake of simplicity, the first measurement unit 27a, the second measurement unit 27b, the defective workpiece discharge unit 28, and the non-defective workpiece discharge unit 29 are not shown in FIG. The direction in which the above-described linear feeder 25 conveys the workpieces W2 toward one surface of the conveyance table 23 in a row by vibration is the direction of the arrow B2 in FIG.

  Further, the sample table 30x in the measurement system confirmation unit 30 is located on one surface side of the transport table 23, and overlaps the transport table 23 in the transfer unit 30t as shown in FIG. As will be described later, the openings of the work storage hole 24 and the work storage hole 31 face each other at the transfer portion 30t. Further, in the measurement system confirmation unit 30, the function of the transfer unit 30t is incorporated on the opposite side of the sample table 30x from the transport table 23, and the sample work W2s is removed from the sample table 30x due to vibration accompanying intermittent rotation of the sample table 30x. A table cover 30b is arranged to prevent the jumping out.

  FIG. 38 shows an enlarged view of the vicinity of the measurement system confirmation unit 30 in FIG. 36, that is, the one-dot chain line region P2. However, for simplicity, the table cover 30b is not shown in FIG.

  The work storage holes 24 of the transfer table 23 and the work storage holes 31 of the sample table 30x face each other in the transfer section 10t. The workpiece storage hole 24 and the workpiece storage hole 31 in a state where the openings face each other are shown as a workpiece storage hole 24t and a workpiece storage hole 31t in FIG. The workpiece storage hole 24 and the workpiece storage hole 31 store the workpiece W2 and the sample workpiece W2s having the shapes shown in FIGS. Here, the sample work W2s is the same work as the work W2, and the characteristics thereof, that is, the respective measurement results in the first measurement unit 27a and the second measurement unit 27b shown in FIG. 36 are known.

  Specifically, the same measurement items as those used in the first measurement unit 27a and the second measurement unit 27b and the same measurement items as those in the first measurement unit 27a and the second measurement unit 27b are used. Is measured in advance on the sample work W2s, and the measurement result (reference characteristic) is stored in the storage unit 32a in the control unit 32. The reference characteristics of the sample work W2s can be read from the storage unit 32a under the control of the control unit 32.

  In addition, when the control unit 32 takes the sample measurement mode, the comparison unit 32b that compares the reference characteristic of the sample workpiece W2s and the measurement result of the workpiece W2 and the comparison unit 32b compare them. And an alarm unit 32c that issues an alarm when the limit is exceeded. When the control unit 32 is in the normal measurement mode, the control unit 32 determines whether the workpiece W2 is a non-defective product or a defective product based on the measurement results of the first measurement unit 27a and the second measurement unit 27b. Automatic switching means 32f for switching the mode.

  Here, the workpiece W2 will be described with reference to FIGS. 39 is a perspective view of the work W2, and FIGS. 40A, 40B, and 40C are views of the work W2 viewed from the directions of arrows C2, D2, and E2 in FIG. Furthermore, FIG. 41 shows an electric circuit diagram of the workpiece W2. The work W2 is an inductor.

  As shown in FIGS. 39 and 40 (a) (b) (c), the workpiece W2 includes a base W2x formed in a hexahedral shape by an insulator, and electrodes W2a formed by a conductor at both ends in the longitudinal direction. W2b. The correspondence between the electrodes W2a and W2b and the electric circuit of the work W2 is as shown in FIG. That is, the inductor L0 is formed between the electrodes W2a and W2b, and the periphery thereof is covered with an insulator to form the base body W2x. The length (a2, b2, c2 in FIG. 40) of each side of the hexahedron constituting the work W2 is about 2 mm to 3 mm in the longitudinal direction, and the length b2 of each side of the electrodes W2a and W2b and Products with c2 of about 1 mm to 2 mm are commercially available.

  Next, the work storage hole 24 of the transfer table 23 will be described with reference to FIGS. 42 and 43. FIG. 42 is a perspective view showing a state in which the work storage hole 24 is stopped at the separation supply unit 26 in FIGS. 36 and 37.

  The work storage holes 24 are opened on both surfaces of the transfer table 23 arranged adjacent to the table base 22, and the end portion of the linear feeder 25 shown in FIGS. 36 and 37 is located facing the opening. This is not shown in FIG. In the table base 22 facing the opening, an air passage 26v having an opening 24b on the wall surface 24w is formed. The air passage 26v communicates with a vacuum generation source 132 installed in the table base 22. Then, due to the vacuum suction from the vacuum generation source 132 in the direction of the arrow F26, a suction force acts on the wall surface 24w inside the work storage hole 24. In addition, since the transfer table 23 is arranged very close to the table base 22, the inside of the work storage hole 24 is substantially sealed in the separation supply unit 26, and the above suction force acts efficiently.

  Next, the operation of the present embodiment having such a configuration, that is, a workpiece measuring method will be described.

  In FIG. 36, the workpiece W2 is put together in a parts feeder (not shown). The electrodes W2a and W2b are aligned in a line so as to be directed in the direction of the workpiece, that is, in the direction of the arrow B2 shown in FIG. As described above, the linear feeder 25 vibrates by the action of a drive mechanism (not shown), and the workpiece W2 is conveyed in the direction of the arrow B2 in a single row aligned in the above-described direction due to this vibration. Then, the workpieces W2 that have reached the position facing the opening of the workpiece storage hole 24 of the transport table 23 that has been stopped are separated one by one by the action of a separation mechanism (not shown) in the separation supply unit 26, and FIG. The workpieces are individually accommodated in the workpiece accommodation holes 24 by vacuum suction in the direction of the arrow F26 shown.

  FIG. 43 is a perspective view showing a state where the workpiece W2 is stored in the workpiece storage hole 24 in this manner. At this time, since the direction of the workpiece W2 is aligned in advance on the linear feeder 25 as described above, the electrodes W2a and W2b are exposed on both surfaces of the transfer table 23 when the workpiece W2 is stored in the workpiece storage hole 24. doing. 43, although the electrode W2b faces the table base 22 side, there is also a work W2 that is accommodated so that the electrode W2a faces the table base 22 side.

  Next, the transfer table 23 rotates intermittently in the direction of the arrow A2 shown in FIG. 36, and the workpiece W2 stored in the workpiece storage hole 24 in the separation supply unit 26 passes through the transfer unit 30t and is transferred to the first measurement unit 27a. Stop. Then, a probe (not shown) connected to the LCR meter as a measuring instrument comes into contact with the electrodes W2a and W2b of the work W2 exposed on both surfaces of the transfer table 23, and the inductance value measurement and the Q value measurement of the work W2 are performed. To do. Next, due to intermittent rotation of the transfer table 23, the workpiece W2 reaches the second measuring unit 27b and stops. Then, similarly to the first measuring unit 27a, probes (not shown) connected to a DC resistance meter as a measuring instrument abut on the electrodes W2a and W2b of the workpiece W2 exposed on both surfaces of the transfer table 23, and the workpiece W2 Conduct DC resistance measurement.

  When the above measurement is completed, the control unit 32 determines whether the workpiece W2 is a non-defective product or a defective product by the determination unit 32d based on the measurement results from the first measurement unit 27a and the second measurement unit 27b. In response to the determination result, the workpiece W2 in the workpiece storage hole 24 is discharged by the defective workpiece discharge unit 28 or the non-defective workpiece discharge unit 29 by intermittent rotation of the transfer table 23. All the workpiece storage holes 24 are emptied in the non-defective workpiece discharge unit 29, and the workpiece W2 is stored again in the empty workpiece storage hole 24 that has reached the separation supply unit 26 by intermittent rotation of the transfer table 23. Is repeated. The above is the normal measurement mode in the workpiece measuring device 21.

  The operation of the sample measurement mode in the workpiece measurement device 21 is the same as the sample measurement mode in the workpiece measurement device 1. That is, in FIG. 38, the sample work W2s previously stored in the work storage hole 31 of the sample table 30x is transferred to the work storage hole 24 of the transfer table 23 by the transfer unit 30t, and the first measurement shown in FIG. After the measurement in the part 27a and the second measurement part 27b, the transfer part 30t again transfers the sample to the work storage hole 31 of the sample table 30x. Further, the transition from the normal measurement mode to the sample measurement mode is also automatically set by a program in the same manner as the workpiece measurement apparatus 1.

  Similar to the workpiece measuring device 1, the workpiece measuring device 21 has a function of recognizing the positions of the workpiece storage holes 24 of the transfer table 23 and the workpiece storage holes 31 of the sample table 30x. A total of 16 workpiece storage holes 24 are formed in the transfer table 23, and a total of eight workpiece storage holes 31 are formed in the sample table 30x. The number of these workpiece storage holes is the same as that of the workpiece measuring device 1. 44A, 44B, and 44C are schematic diagrams showing the fixed positions and the hole numbers in the same manner as the workpiece measuring device 1 for each workpiece storage hole.

  44 (a) (b) (c), the notation method of the fixing position and the hole number is the same as that of FIGS. 8 (a) (b) (c) quoted in the description of the workpiece measuring apparatus 1, and therefore the detailed explanation is as follows. Omitted.

  Here, the fixed position <1> of the transfer table 23 is given to the position of the work storage hole facing the separation supply unit 26 in FIG. 36, and the fixed position of the transfer unit 30t is (3). The sample table 30x is [8].

  These application methods are the same as those of the workpiece measuring apparatus 1. Further, the intermittent rotation direction A2 of the transport table 23 and the intermittent rotation direction X2 of the sample table 30x are apparent by comparing FIGS. 44 (a) (b) (c) and FIGS. 8 (a) (b) (c). Thus, it is the same as the workpiece measuring apparatus 1 as well. Furthermore, as shown in FIG. 44 (c), the hole number of the work storage hole 31 of the sample table 30 x in which the sample works a to d are stored in advance is also the same as that of the work measurement apparatus 1. That is, in the workpiece measuring device 21, the procedure for transferring the sample workpiece W2s between the sample table 30x and the transfer table 23 in the normal measurement mode and the sample measurement mode is that the shape of the workpiece storage hole in each table is different. These are the same as FIGS. 11A, 11B, 11C to 27A, 27B, and 27C in the workpiece measuring apparatus 1. Therefore, detailed description is omitted.

  FIG. 45 shows a perspective view of the transfer unit 30t as viewed from the direction of the arrow K2 in FIG. In FIG. 45, the transfer unit 30t includes a table base 22, a transport table 23, a sample table 30x, and a table cover 30b arranged in this order from right to left with a slight gap therebetween. As described above, the work storage holes 24t of the transfer table 23 and the work storage holes 31t of the sample table 30x face each other.

  Further, an air passage 30p2 is formed in the table base 22 so as to face the opening of the work storage hole 24t. Similarly, an air passage 30p1 is formed in the table cover 30b so as to face the opening of the work storage hole 31t. Further, a sensor passage 30s2 that opens to face the opening of the work storage hole 24t is formed in the table base 22.

  In the table base 22 on the right side of the sensor passage 30s2, the sample work W2s is transferred into the work storage hole 24t depending on whether or not the reflected light is detected by sending light toward the work storage hole 24t. An optical sensor 24L having a function of detecting whether or not has been disposed is disposed.

  This optical sensor 24L has a function in which the optical sensor light source 4La and the optical sensor 4Lb shown in FIGS. 28A, 28B, 35A, and 35B in the first embodiment are combined into one. In addition, it is commercially available under the name of a reflection type photo sensor or a photo reflector. Similarly, a sensor passage 30s1 is formed in the table cover 30b so as to open facing the opening of the work storage hole 31t.

  In the table cover 30b on the left side of the sensor passage 30s1, light is sent toward the work storage hole 31t, and the sample work W2s is transferred into the work storage hole 31t depending on whether or not the reflected light is detected. An optical sensor 31L having a function of detecting whether or not has been disposed is disposed.

  This optical sensor 31L has a function of integrating the optical sensor light source 11La and the optical sensor 11Lb shown in FIGS. 28A, 28B, 35A, and 35B in the first embodiment. ing. The optical sensor 24L and the optical sensor 31L constitute transfer detection means. FIG. 46 shows an enlarged perspective view of the transfer unit 30t.

  As shown in FIG. 46, the air passage 30p2 formed in the table base 22 in the transfer portion 30t communicates with the switching valve 142a. The switching valve 142a has a function of selecting three switching modes x1, x2, and x3. In the switching mode x1, the vacuum generation source 132 installed in the table base 22 is selected. At this time, the air passage 30p2 communicates with the vacuum generation source 132, and the work storage hole 24t is vacuumed in the direction of the arrow V302. The In the switching mode x2, the compressed air generation source 152 installed in the table base 22 is selected. At this time, the air passage 30p2 communicates with the compressed air generation source 152, and the direction of the arrow C302 is set in the work accommodation hole 24t. Compressed air is ejected. Further, since nothing is selected in the switching mode x3, the air passage 30p2 does not communicate anywhere, and the work storage hole 24t is kept at atmospheric pressure.

  Similarly, the air passage 30p1 formed in the table cover 30b in the transfer part 10t communicates with the switching valve 142b. Then, when the switching valve 142b selects the switching mode x1, x2, x3, similarly to the work storage hole 24t, the work storage hole 31t is vacuum-sucked in the direction of the arrow V301, and the work storage hole 31t has an arrow. Compressed air is ejected in the direction of C301, and the inside of the work storage hole 31t is kept at atmospheric pressure.

  FIG. 47 shows a state where the sample work W2s is stored in the work storage hole 31t in the transfer unit 30t. The switching valve 142a selects the switching mode x3, and the switching valve 142b selects the switching mode x1. For this reason, the sample work W2s is vacuum-sucked in the direction of the arrow V301 and is held in the work storage hole 31t. From this state, when the sample work W2s is transferred to the work storage hole 24t facing the work storage hole 31t, the direction of the sample work W2s coincides with the direction of the work W2 shown in FIG.

  A procedure for transferring the sample work W2s in the transfer unit 30t and a method for confirming transfer completion will be described with reference to FIGS. 48 (a), 48 (b) to 51 (a) (b). Since the principle is the same as that in FIGS. 28A and 28B to FIGS. 35A and 35B in the workpiece measuring apparatus 1, the description will be greatly simplified. 48 (a) is a perspective view corresponding to FIG. 45, and FIG. 47 is a perspective view thereof. In FIG. 48A, the switching valve 142a selects the switching mode x3, and the switching valve 142b selects the switching mode x1.

  As shown in FIG. 48A, the work storage hole 24t is maintained at atmospheric pressure, and the work storage hole 31t is vacuum-sucked in the direction of the arrow V301. That is, in FIG. 48A, the sample work W2s is stored in the work storage hole 31t, and is positioned in the immediate vicinity of the sensor passage 30s1 formed in the table cover 30b facing the work storage hole 31t. For this reason, the light sent from the optical sensor 31L through the sensor passage 30s1 into the workpiece accommodation hole 31t is reflected by the sample work W2s, and the reflected light L31 reaches the optical sensor 31L through the sensor passage 30s1 and is detected. Is done.

  On the other hand, the light sent from the optical sensor 24L arranged in the table base 22 through the sensor passage 30s2 into the work accommodation hole 31t is separated from the sensor passage 30s2, and thus the sample work W2s is separated from the sample work W2s. It will decay before it reaches. Therefore, there is no light reflected by the sample work W2s, and the optical sensor 24L detects nothing. In this case, it can be seen that the sample work W2s is stored in the sample table 30x. This relationship is shown in FIG.

  FIGS. 49 (a) and 49 (b) show how the sample work W2s is transferred from the sample table 30x to the transfer table 23 from the state of FIGS. 48 (a) and 48 (b).

  49A, the switching valve 142a selects the switching mode x1, the air passage 30p2 communicates with the vacuum generation source 132, and vacuum suction is performed in the direction of the arrow V302. At the same time, the switching valve 142b selects the switching mode x2, the air passage 30p1 communicates with the compressed air generation source 152, and compressed air is ejected in the direction of the arrow C301. For this reason, the sample work W2s starts to move in the direction of the arrow H2, and is in a state of being moved from the sample table 30x to the transfer table 23 in FIG.

  As shown in FIG. 49 (a), since the sample work W2s is separated from both the sensor passages 30s1 and 30s2, the light sent from the optical sensor 31L through the sensor passage 30s1 into the work accommodation hole 31t and All of the light transmitted from the optical sensor 24L through the sensor passage 30s2 into the work storage hole 24t is attenuated before reaching the sample work W2s. For this reason, there is no light reflected by the sample work W2s, and the optical sensors 31L and 24L detect nothing. This relationship is shown in FIG. FIG. 50A shows a state where the sample work W2s has been transferred to the transfer table 23 after a further time has elapsed from this state.

  As shown in FIG. 50A, the sample work W2s is stored in the work storage hole 24t, and is positioned in the immediate vicinity of the sensor passage 30s2 formed in the table base 22 facing the work storage hole 24t. Therefore, the detection status by the optical sensors 31L and 24L is reversed to the case of FIG. 48 (b) and becomes as shown in FIG. 50 (b).

  That is, if the information on whether the optical sensors 31L and 24L detect the reflected light or not is transmitted to the control unit 32 shown in FIG. 36 in the transfer unit 30t, the information is shown in FIG. ) Through FIG. 49 (b) and the state shown in FIG. 50 (b), the control unit 32 can determine that the sample work W 2 s has been transferred from the sample table 30 x to the transport table 23. Similarly, when the sample work W2s is transferred from the transfer table 23 to the sample table 30x, the state shown in FIGS. 50A and 50B is changed to the state shown in FIGS. It changes to the state of (b).

  In FIG. 51A, the switching valve 142a selects the switching mode x2, the air passage 30p2 communicates with the compressed air generation source 152, and compressed air is ejected in the direction of the arrow C302. At the same time, the switching valve 142b selects the switching mode x1, the air passage 30p1 communicates with the vacuum generation source 132, and vacuum suction is performed in the direction of the arrow V301. For this reason, the sample work W2s starts to move in the direction of the arrow J2, and is in a state of being moved from the transport table 23 to the sample table 30x in FIG. At this time, since the position of the sample work W2s with respect to the optical sensors 31L and 24L is the same as the state shown in FIGS. 49A and 49B, the reflected light detection of each optical sensor is as shown in FIG.

  That is, in the transfer unit 30t, if information on whether the optical sensors 31L and 24L detect reflected light or not is transmitted to the control unit 32 shown in FIG. 36, the information is shown in FIG. ) Through FIG. 51 (b) and the state shown in FIG. 48 (b), the control unit 32 can determine that the sample work W2s has been transferred from the transport table 23 to the sample table 30x.

  As described above, the workpiece measuring device 21 shown in FIG. 36 can operate in the sample measurement mode similarly to the workpiece measuring device 1 shown in FIG. 1, and the measurement result and the storage unit in the control unit 32 are stored in advance. Compare the stored measurement results of each sample work. And about the measurement part from which the difference of both the measurement results deviated from the predetermined standard value, similarly to the above-mentioned workpiece measurement device 1, an alarm is issued and the operator is notified.

Third Embodiment Next, a third embodiment of the present invention will be described with reference to FIGS.

  A plan view of the workpiece measuring apparatus 41 to which the present invention is applied is shown in FIG. FIG. 53 shows a front view of FIG. 52 viewed from the direction of arrow N.

  However, for the sake of simplicity, FIG. 53 does not show other than the main part of FIG. The workpiece measuring device 41 has a horizontal transfer table 43 as a transfer body, and a transfer nozzle 44 that can move forward and backward with respect to the transfer table 43 is provided on one surface side of the transfer table 43 as a holding unit. In FIG. 52 and FIG. 53, a circular transfer table 43 as a transfer body is spaced apart above a horizontally arranged table base 42 and is rotatably supported by a support 43a as a central axis.

  The transport table 43 is intermittently rotated in the direction of the arrow A3 shown in FIG. 52 around the support 43a by the action of a drive mechanism (not shown). In the vicinity of the outer peripheral portion of the transfer table 43, a plurality of transfer nozzles 44 are arranged on one side facing the table base 42. As shown in FIG. 53, the transport nozzle 44 can be moved back and forth in the directions of arrows Q and R with respect to one surface of the transport table 43 by the action of a drive mechanism (not shown). FIG. 53 shows a state in which all the transport nozzles 44 are at the upper limit position. The transfer table 43 rotates intermittently with the transfer nozzle 44 in the upper limit position. A workpiece W3 to be described later as a workpiece to be measured and a sample workpiece W3s identical to the workpiece W3 are individually held and conveyed at the lower end of the conveyance nozzle 44.

  As shown in FIG. 52, a linear feeder 5 having a linear shape is arranged on the table base 42 so as to be directly below the outer peripheral portion of the transport table 43. The linear feeder 5 vibrates by the action of a drive mechanism (not shown), and has a function of conveying the workpiece W3 in the direction of the arrow B3 in a single row state by this vibration. The terminal portion of the linear feeder 5 is located on the upper surface of the table base 42 immediately below the outer peripheral portion of the transport table 43. Then, the workpiece W3 on the linear feeder 5 is separated one by one and supplied to the conveying nozzle 44 individually at a position slightly close to the column 43a of the conveying table 43 from the position and directly below the conveying nozzle 44. A separation supply stand 46 as a separation supply means is arranged.

  Similar to the workpiece measuring device 1, along the intermittent rotation direction of the conveying table 43 from the separation supply base 46, that is, in the direction of the arrow A3, the first measuring unit 47a and the second measuring unit 47a are used as measuring means for measuring various characteristics of the workpiece W3. The measurement unit 47b, the third measurement unit 47c, and the defective workpiece discharge unit 48 as a discharge unit that discharges the workpiece W3 determined to be defective from the measurement result from the transport nozzle 44, and is determined to be non-defective based on the measurement result A non-defective workpiece discharge portion 49 is disposed in this order as a discharge means for discharging the workpiece W3 from the transfer nozzle 44.

  A sample table 10x as a sample work supply unit is disposed on the upper surface of the table base 42 between the separation supply base 46 and the first measurement unit 47a along the intermittent rotation direction of the transfer table 43, that is, the arrow A3 direction. In addition, a transfer unit 50t is disposed as a transfer position for transferring the sample work W3s between the sample table 10x and the transfer table 43. The sample table 10x has the same shape as that described in the first embodiment. In addition, the transfer unit 50 t is disposed at a position where the workpiece storage hole 11 of the sample table 10 x is directly below the transport nozzle 44. Further, the conveyance table 43, the separation supply unit 46, the first measurement unit 47a, the second measurement unit 47b, the third measurement unit 47c, the defective workpiece discharge unit 48, the non-defective workpiece discharge unit 49, and the sample table that constitute the workpiece measurement device 41. A control unit 52 for controlling the operation of 10x and the transfer unit 50t is arranged.

  In addition, when the control unit 52 takes the sample measurement mode, the comparison unit 52b that compares the reference characteristic of the sample workpiece W3s and the measurement result of the workpiece W3 and the comparison unit 52b compare them, and the difference between the two is a predetermined value. And an alarm unit 52c that issues an alarm when the value exceeds. When the control unit 52 is in the normal measurement mode, the determination unit determines whether the workpiece W3 is a non-defective product or a defective product based on the measurement results obtained by the first measurement unit 47a, the second measurement unit 47b, and the third measurement unit 47c. 52d and automatic switching means 52f for switching the mode of the control unit 52.

  Here, the workpiece W3 will be described. FIG. 54 is a perspective view of the workpiece W3, and FIGS. 55A, 55B, and 55C are views of the workpiece W3 viewed from the directions of arrows C3, D3, and E3 in FIG. The work W3 is a light emitting diode (LED). As shown in FIGS. 54 and 55, the workpiece W3 has a shape similar to that of the workpiece W1 shown in FIGS. That is, the work W3 is formed in a hexahedron shape by an insulator, and a light emitting surface W3L covered with a transparent resin is formed in a substantially planar shape on a surface W3f4 which is one surface thereof, and is adjacent to the surface W3f4, and Electrodes W3a and W3b made of a conductor project on surfaces W3f2 and W3f3, which are two surfaces facing each other, respectively. The correspondence between the electrodes W3a and W3b and the electric circuit of the work W3 is the same as that in FIG.

  That is, when the electrode W3a is an anode and the electrode W3b is a cathode, and a predetermined DC voltage is supplied from the DC voltage source to the workpiece W3 so that the electrode W3a has a higher potential than the electrode W3b, the light emitting surface W3L Emits light. Thus, since the electrode W3a and the electrode W3b have directionality, it is necessary to identify the direction when the work W3 is viewed from the outside. For this purpose, a cathode mark W3m indicating that the electrode W3b is a cathode is printed on a corner of the surface W3f1 on the side close to the electrode W3b. The length (a3, b3, c3 in FIG. 55) of each side of the hexahedron constituting the workpiece W3 is such that the lengths a3, b3 of each side of the surface W3f1 on which the cathode mark W3m is printed are about 5 mm to 7 mm. A product having a surface W3f2 from which the electrodes W3a and W3b protrude and a length c3 of a short side of the surface W3f3 of about 2 mm is commercially available.

  As shown in FIGS. 54 and 55, the workpiece W3 is different from the workpiece W1 shown in FIGS. 3 and 4 because the surface W3f1 having the largest area among the six surfaces constituting the workpiece W3 does not have a light emitting surface. As will be described later, the surface W3f1 can be sucked and transported by the transport nozzle 44.

  Similar to the workpiece measuring device 1, the workpiece measuring device 41 has a function of recognizing the positions of the transfer nozzle 44 of the transfer table 43 and the workpiece storage hole 11 of the sample table 10x. Here, since the transfer table 43 is provided with a transfer nozzle 44 instead of the work storage hole 4 of the transfer table 3 in the workpiece measuring apparatus 1, the hole number used in the description of the transfer table 3 is referred to as a nozzle number. To do. A total of 16 transfer nozzles 44 are arranged on the transfer table 43, and a total of 8 workpiece storage holes 11 are formed in the sample table 10x. The number of these transfer nozzles and workpiece storage holes is the same as that of the workpiece measuring apparatus 1. FIG. 56 is a schematic diagram showing the fixed position and the nozzle number or hole number for each transfer nozzle and workpiece storage hole, as in the workpiece measuring device 1. The notation method of the fixed position and the nozzle number or the hole number is the same as that in FIG.

  Here, the fixed position <1> of the transfer table 43 is given to the position of the transfer nozzle arranged immediately above the separation supply base 46 in FIG. 3) The sample table 10x is [8]. These application methods are the same as those of the workpiece measuring apparatus 1.

  Further, the intermittent rotation direction A3 of the transport table 43 and the intermittent rotation direction X3 of the sample table 10x are the same as those of the workpiece measuring apparatus 1 as is apparent from a comparison of FIGS. Furthermore, the hole number of the workpiece storage hole 11 of the sample table 10x in which the sample workpieces a to d are stored in advance is also the same as that of the workpiece measuring apparatus 1. That is, in the workpiece measuring device 41, the operation of the normal measurement mode and the procedure for transferring the sample workpiece W3s in the sample measurement mode between the sample table 10x and the transfer table 43 are transferred by the transfer table 43 instead of the workpiece storage holes. Except having a nozzle, it is exactly the same as FIGS. 11 to 27 in the workpiece measuring apparatus 1. Therefore, detailed description is omitted.

  Next, an operation of the workpiece measuring apparatus 41 having such a configuration, that is, a workpiece measuring method will be described below. In FIG. 52, the workpiece W3 is put together in a parts feeder (not shown).

  Then, due to the action of a direction detection mechanism (not shown), the light emitting surface W3L shown in FIG. 54 is aligned in the direction opposite to the work traveling direction, that is, the direction of the arrow B3 shown in FIG. Line up in a row. In FIG. 52, when the workpiece W3 conveyed in a line in the direction of arrow B3 by the action of the linear feeder 5 reaches the end portion thereof, the separation supply base 46 in the direction of arrow G3 in FIG. It is transferred individually for. When the workpiece W3 is transferred onto the separation supply table 46, the transport nozzle 44 that is stopped at the upper limit position directly above the separation supply table 46 in FIG. To descend. Then, as shown in FIG. 57, the conveyance nozzle 44 stops in a state where the lower end of the conveyance nozzle 44 is in contact with the surface W3f1 of the workpiece W3 placed on the separation supply base 46.

  In this case, an air passage 44 a is formed inside the transport nozzle 44, and an opening 44 b is opened at the lower end of the transport nozzle 44. The air passage 44a reaches the table base 42 via the transfer table 43 and the central shaft 43a shown in FIG. 53, and communicates with the switching valve 16a disposed there.

  The switching valve 16a has a function of selecting two switching modes y1 and y3. The switching mode y1 selects the vacuum generation source 133a installed in the table base 42. At this time, the air passage 44b communicates with the vacuum generation source 133a and is vacuumed in the direction of the arrow F44.

  On the other hand, since nothing is selected in the switching mode y3, the air passage 44b does not communicate anywhere and maintains the atmospheric pressure state. The transport nozzle 44 descends in the direction of arrow Q from the state where it is stopped at the upper limit position directly above the separation supply base 46 in FIG. 53, and as shown in FIG. 57, the lower end abuts against the surface W3f1 of the workpiece W3. Until this time, the switching valve 16a selects the switching mode y3.

  That is, the air passage 44b is in an atmospheric pressure state. When the lower end of the transport nozzle 44 comes into contact with the surface W3f1 of the workpiece W3 and stops, the switching valve 16a selects the switching mode y1. At this time, the air passage 44b communicates with the vacuum generation source 133a and is vacuum-sucked in the direction of the arrow F44, so that the work W3 is attracted and held by the lower end of the transport nozzle 44. At this time, since the direction of the workpiece W3 shown in FIG. 57 is aligned on the linear feeder 5 as described above, the arrow S direction coincides with the arrow G3 direction in FIG. That is, the workpiece W3 is held by the transport nozzle 44 so that the light emitting surface W3L faces the outside of the transport table 43.

  Next, the transport nozzle 44 rises in the direction of arrow R in FIG. 53 while holding the workpiece W3, and stops at the upper limit position. Then, the transfer table 43 is intermittently rotated in the direction of arrow A3 in FIG. 52 to transfer the workpiece W3.

  Then, the workpiece W3 passes through the transfer unit 50t and stops at the first measurement unit 47a. The transport nozzle 44 descends in the direction of arrow Q shown in FIG. 53, and the workpiece W3 is placed on a measurement table (not shown) disposed on the table base 42. And similarly to the 1st measurement part 7a of the workpiece | work measuring apparatus 1, the wavelength measurement of the workpiece | work W3 is implemented using the DC power supply and wavelength meter which are not shown in figure. During this measurement, the work W3 is maintained in the state of being sucked and held by the transport nozzle 44. When the measurement is completed, the transport nozzle 44 rises in the direction of arrow R in FIG. 53 and stops at the upper limit position while holding the workpiece W3. Then, the transfer table 43 is intermittently rotated in the direction of arrow A3 in FIG. 52 to transfer the workpiece W3. Then, similarly to the first measurement unit 47a, the workpiece W3 is sequentially stopped at the second measurement unit 47b and the third measurement unit 47c, and the conveyance nozzle 44 is lowered, the measurement item is measured in each measurement unit, and the conveyance nozzle 44 is raised. repeat.

  Here, the measurement items corresponding to the second measurement unit 47b and the third measurement unit 47c are the same as the measurement items in the second measurement unit 7b and the third measurement unit 7c of the workpiece measurement apparatus 1 in the first embodiment. . Therefore, detailed description is omitted.

  When the above measurement is completed, the control unit 52 determines whether the workpiece W3 is a non-defective product or a defective product by the determination unit 52d based on the measurement results from the first measurement unit 47a, the second measurement unit 47b, and the third measurement unit 47c. . Corresponding to the determination result, the workpiece W3 sucked and held by the transfer nozzle 44 in the defective workpiece discharge unit 48 or the non-defective workpiece discharge unit 49 is discharged by intermittent rotation of the transfer table 43.

  When discharging, in each workpiece discharge section 48, 49, the switching valve 16a shown in FIG. 57 selects the switching mode y3, and the air passage 44a is set to atmospheric pressure, whereby the workpiece W3 is moved from the lower end of the transfer nozzle 44. It leads to a discharge port (not shown) by natural fall due to gravity.

  In FIG. 52, after the non-defective workpiece discharge section 49, the lower ends of all the transport nozzles 44 are not held at all, and the transport nozzle 44 that has reached the position immediately above the separation supply base 46 by intermittent rotation of the transport table 43 includes: The workpiece W3 is again held by suction, and the same operation as described above is repeated. The series of operations described above is the normal measurement mode, and all the operations are executed based on the control of the control unit 52.

  Next, the sample measurement mode will be described. As described above, in the workpiece measuring device 41, the function of recognizing the positions of the transfer nozzle 44 of the transfer table 43 and the workpiece storage hole 11 of the sample table 10x is the same as that of the workpiece measuring device 1.

  The procedure for transferring the sample work W3s in the sample measurement mode between the sample table 10x and the transfer table 43 is also the same as that of the work measurement apparatus 1. Therefore, only the transfer method and transfer detection means in the transfer unit 50t will be described here.

  FIG. 58 is a perspective view showing a state in which the sample work W3s is stored in the work storage hole 11 of the sample table 10x. The upper side of the work accommodation hole 11 in the transfer part 50t is opened. The sample work W3s is stored in the work storage hole 11 so that the light emitting surface W3L faces the outer peripheral side of the sample table 10x and the surface W3f1 faces the upper side.

  That is, in FIG. 52, the light emission surface W3L of the sample work W3s in the transfer part 50t faces the arrow T direction. In the transfer part 50t, the inside of the work accommodation hole 11 communicates with the switching valve 16b via the air passage 50v, as in the case of the sample table 10x in the work measurement apparatus 1 shown in FIG. The switching valve 16b has a function of selecting two switching modes y1 and y3.

  Among these, the switching mode y1 selects the vacuum generation source 133b installed in the table base 42. At this time, the air passage 50v communicates with the vacuum generation source 133b, and the work storage hole 11 is evacuated in the direction of the arrow F50. Sucked. On the other hand, since nothing is selected in the switching mode y3, the air passage 50v does not communicate anywhere, and the work storage hole 11 is kept at atmospheric pressure.

  FIG. 59A is a schematic diagram of the transfer section 50t regarding a method for transferring the sample work W3s between the work storage hole 11 and the transfer nozzle 44 and a method for confirming transfer completion in the sample measurement mode. This will be described with reference to (b) to (a) and (b) of FIG. FIG. 59A shows a state where the transport nozzle 44 is stopped at the upper limit position immediately above the workpiece storage hole 11 storing the sample workpiece W3s.

  As shown in FIG. 59A, the switching valve 16a selects the switching mode y3, and the air passage 44a of the transport nozzle 44 is at atmospheric pressure. Here, an air passage branching portion 44y that branches off from the air passage main body 44x is formed in the air passage 44a on the way to the switching valve 16a. And the vacuum sensor 44s2 is arrange | positioned at the terminal part of the air channel | path branch part 44y. The vacuum sensor 44s2 has a function of detecting that the air passage 44a is evacuated. 59A and 59B, since the air passage 44a is at atmospheric pressure, the vacuum sensor 44s2 is not detected. Here, a mechanism for realizing the raising and lowering of the transport nozzle 44 will be briefly described.

  The air cylinder 44c described in FIGS. 59 (a), (b) to 66 (a) and 66 (b) allows the piston 44p to move into and out of the cylinder tube 44t by taking air into and out of the cylinder tube 44t from an air source (not shown). It is a mechanism that reciprocates and raises and lowers the transport nozzle by the action of the piston rod 44r connected to the piston 44p. In FIGS. 59 (a), (b) to 66 (a), (b), for the sake of simplicity, the movement direction of the piston rod 44r and the movement direction of the transport nozzle 44 are shown to be the same. The air cylinder 44c is provided with a cylinder sensor 44s1 for detecting the position of the piston 44p. When the cylinder sensor 44s1 detects the position of the piston 44p corresponding to the case where the transport nozzle 44 is at the upper limit position shown in FIG. 53, the cylinder sensor 44s1 issues an upper limit detection signal NU. As shown in FIG. 57, when the position of the piston 44 corresponding to the case where the transport nozzle 44 is in a position where it abuts against the surface W3f1 of the sample work W3s is detected, a lower limit detection signal ND is issued. The cylinder sensor 44s1 and the vacuum sensor 44s2 constitute transfer detection means.

  In FIG. 59A, since the transport nozzle 44 is at the upper limit position, the cylinder sensor 44s1 issues an upper limit detection signal NU. The state of each sensor and the position of the sample work at this time are shown in FIG. In FIG. 59A, the switching valve 16b selects the switching mode y1. Thus, the sample work Ws3 is held in the work storage hole 11 by the above-described vacuum suction action.

  Next, as shown in FIG. 60A, air is injected into the cylinder tube 44t, and the piston 44p moves in the direction of the arrow Q0. As a result, the transport nozzle 44 is lowered in the direction of the arrow Q (corresponding to the arrow Q in FIG. 53). At this time, the cylinder sensor 44s1 is not detected. And vacuum sensor 44s2 also continues a non-detection state. This relationship is shown in FIG.

  After a while from this state, as shown in FIG. 61A, the transport nozzle 44 comes into contact with the surface W3f1 of the sample work W3s, and the cylinder sensor 44s1 issues a lower limit detection signal ND. This relationship is shown in FIG.

  Next, as shown in FIG. 62 (a), the switching valve 16a selects the switching mode y1, and the air passage 44a communicates with the vacuum generation source 133a and is sucked in the direction of the arrow F44. It is adsorbed and held at the lower end of the nozzle 44. For this reason, the air passage 44a is evacuated, and the vacuum sensor 44s2 detects the vacuum. This relationship is shown in FIG. Next, as shown in FIG. 63A, the air in the cylinder tube 44t is discharged, and the piston 44p moves in the direction of the arrow R0. As a result, the transport nozzle 44 rises in the direction of the arrow R (corresponding to the arrow R in FIG. 53) with the sample work W3s being sucked and held. At this time, the cylinder sensor 44s1 is not detected. And vacuum sensor 44s2 continues a detection state. This relationship is shown in FIG. After a while from this state, the transport nozzle 44 reaches the upper limit position as shown in FIG. 64A, and the cylinder sensor 44s1 issues an upper limit detection signal NU. This relationship is shown in FIG.

  In this state, the sample work W3s is transferred from the sample table 10x to the transfer table 43. That is, FIG. 52 shows information about whether the cylinder sensor 44s1 detects the upper limit detection signal NU or the lower limit detection signal ND and whether the vacuum sensor 44s2 detects vacuum or not in the transfer unit 50t. If the information is transmitted to the control unit 52, when the information changes from FIG. 59 (b) to FIG. 64 (b) through FIG. 60 (b) to FIG. 63 (b), the control unit 52 It can be determined that the sample work W3s has been transferred from the sample table 10x to the transfer table 43.

  As described above, in FIG. 52, the light emitting surface W3L of the sample work W3s in the transfer unit 50t faces the direction of the arrow T, and therefore the direction of each surface of the sample work W3s transferred to the transfer table 43. Is the same as the workpiece W3 as the workpiece to be measured.

  When the sample workpieces a to d are held by the transfer nozzle 44 by the above procedure, these sample workpieces sequentially reach the first measurement unit 47a, the second measurement unit 47b, and the third measurement unit 47c shown in FIG. And stop. In each measurement unit, the same wavelength measurement, luminance measurement, and total luminous flux measurement as those for the workpiece W3 as the workpiece to be measured are performed on each of the sample workpieces a to d. Thereafter, each sample work is transferred from the transfer table 43 to the sample table 10x in the transfer unit 50t. FIG. 64 shows a state when the sample work W3s that has been measured has reached the transfer part 50t.

  From this state, as shown in FIG. 65A, air is injected into the cylinder tube 44t, and the piston 44p moves in the direction of the arrow Q0. As a result, the transport nozzle 44 is lowered in the direction of the arrow Q (corresponding to the arrow Q in FIG. 53). At this time, the cylinder sensor 44s1 is not detected. And vacuum sensor 44s2 continues a detection state. This relationship is shown in FIG.

  After a while from this state, the sample work W3s held by the transport nozzle 44 is placed in the work storage hole 11 of the sample table 10x as shown in FIG. The cylinder sensor 44s1 issues a lower limit detection signal ND. This relationship is shown in FIG.

  Next, as shown in FIG. 61A, the switching valve 16a selects the switching mode y3, and the air passage 44b does not communicate anywhere, so the workpiece W3s is not attracted to the lower end of the transport nozzle 44. At this time, the air passage 44a is at atmospheric pressure, and the vacuum sensor 44s2 is not detected. This relationship is shown in FIG.

  Next, as shown in FIG. 66 (a), the air in the cylinder tube 44t is discharged, and the piston 44p moves in the direction of the arrow R0. As a result, the transport nozzle 44 moves away from the sample work W3s and rises in the direction of the arrow R (corresponding to the arrow R in FIG. 53). At this time, the cylinder sensor 44s1 is not detected. And vacuum sensor 44s2 continues a non-detection state. This relationship is shown in FIG.

  Thereafter, the transport nozzle reaches the upper limit position shown in FIG. 53 and stops. This is shown in FIG. 59 (a) described above. As shown in FIG. 59B, the cylinder sensor 44s1 issues an upper limit detection signal NU, and the vacuum sensor 44s2 is not detected. That is, in the transfer unit 50t, if the detection information of the cylinder sensor 44s1 and the vacuum sensor 44s2 is transmitted to the control unit 52 shown in FIG. 52, the information is shown in FIG. 64 (b), FIG. 65 (b), FIG. When changing in the order of 62 (b), FIG. 61 (b), FIG. 66 (b), and FIG. 59 (b), the control unit 52 determines that the sample work W3s has been transferred from the transfer table 43 to the sample table 10x. can do.

  As described above, the workpiece measuring device 41 shown in FIG. 52 can operate in the sample measurement mode similarly to the workpiece measuring device 1 shown in FIG. 1, and the measurement result is stored in advance in the storage unit in the control unit 52. Compare the stored measurement results of each sample work. And about the measurement part from which the difference of both the measurement results deviated from the predetermined standard value, similarly to the above-mentioned workpiece measurement device 1, an alarm is issued and the operator is notified.

  In each embodiment, an example in which the number of measurement units is three or two is shown, but the number of measurement units is not limited to these. Further, the measurement items in each measurement unit are not limited to the items in the above description.

  Furthermore, in each of the above embodiments, the transport table is installed horizontally or vertically, but the present invention is not limited to this, and the transport table may be installed inclined.

  In each of the above embodiments, an example is shown in which sample work data acquisition is performed for confirmation of measurement accuracy, that is, mode switching is performed by automatic switching means by a program. Manual operation, for example, manual switching means such as a push button switch may be used to execute timing at which sample work data should be acquired, that is, mode switching.

  Moreover, although each said embodiment uses the circular conveyance table which rotates intermittently around a central axis as a conveyance body, the shape of a conveyance body is not limited to such a conveyance table. Absent. For example, an endless conveyance belt in which a plurality of concave portions that individually store workpieces are arranged in the longitudinal direction as the conveyance body may be circulated in the longitudinal direction by intermittent movement.

  In each of the above embodiments, a circular sample table that rotates intermittently around the central axis is used as the sample work supply means. As long as the workpieces can be transferred to each other and transfer detection means can be provided, the circular table is not limited thereto.

1 Work measuring device 2, 22, 42 Table base 3, 23, 43 Transport table 4, 24, 44 Work storage hole 4La Optical sensor light source 4Lb Optical sensor 5, 25 Linear feeder 6, 26, 46 Separation supply unit 7a, 27a, 47a 1st measurement part 7b, 27b, 47b 2nd measurement part 7c, 47c 3rd measurement part 8, 28, 48 Defective work discharge part 9, 29, 49 Non-defective work discharge part 10x, 30x Sample table 11, 31 Work storage hole 11La photosensor light source 11Lb photosensor 12, 32, 52 Control unit 12a, 32a, 52a Storage unit 12b, 32b, 52b Comparison unit 12c, 32c, 52c Alarm unit 12d, 32d, 52d Determination unit 12e, 32e, 52e Timer 12f, 32f, 52f Automatic switching means 13 Vacuum generation source 14a, 14b Switching valve 15 Compressed air generation Source W1, W2, W3 work W1s, W2s, W3s sample work

Claims (16)

A plurality of holders each holding a workpiece and a sample workpiece, and a transport body provided rotatably;
Separation supply means for individually separating and supplying workpieces to the holding unit of the carrier;
A measuring unit that is disposed on the downstream side of the separation supply unit and measures the characteristics of the workpiece and the sample workpiece held in the holding unit of the transport body;
A discharge means that is disposed on the downstream side of the measurement means and discharges the work held by the holding portion of the transport body;
Between the separation feeding means and measuring means, the sample workpiece supply means having a plurality of storage portions sample workpiece is accommodated supplies a plurality of sample workpieces previously reference characteristic is defined in hold portion of the carrier Provided,
A control device for controlling the transport body, the separation supply means, the measurement means, the discharge means, and the sample work supply means is provided,
When the control device takes the normal measurement mode, the workpiece supplied from the separation supply means to the carrier holding part is measured by the measurement means and then discharged from the discharge means. When the sample measurement mode is taken, the carrier holding part After discharging all the workpieces held in the discharge unit and emptying all the holding units, measure the sample workpiece supplied from the storage unit of the sample workpiece supply unit to the holding unit of the transport body with the measurement unit and discharge it. The sample is returned to the original storage part of the sample work of the sample work supply means without being discharged from the means, and the control device recognizes the holding part of the transport body in which each sample is stored, and the sample measured by the measurement means recognizes the measurement results of the work separately, the difference compared with the measurement results of the individual recognized SamplesWorkspace with the reference characteristics of corresponding samples workpiece built in advance And a warning unit that is connected to the comparison unit and issues an alarm when the difference between the measurement result and the reference characteristic of the sample workpiece exceeds a predetermined value. The sample workpiece supply means supplies the sample workpiece to the sample workpiece. A workpiece measuring apparatus comprising transfer detecting means for respectively detecting that the sample work is supplied from the storage part of the means into the holding part of the transport body and that the sample work is returned to the storage part of the sample work supply means. . Controller workpiece measuring apparatus according to claim 1, characterized in that it has an automatic switching means for switching between the normal measurement mode and sample measurement mode automatically. Controller workpiece measuring apparatus according to claim 1, characterized in that it has a manual switching means for switching between the normal measurement mode and sample measurement mode manually. 4. The workpiece measuring apparatus according to claim 3, wherein the manual switching means has a push button switch. Conveying bodies workpiece measuring apparatus according to any one of claims 1 to 4, characterized in that it has a circular conveying table. 6. The workpiece measuring apparatus according to claim 5 , wherein the holding unit of the transfer body includes a recess provided on the outer periphery of the transfer table and opening outward.   6. The workpiece measuring apparatus according to claim 5, wherein the holding unit of the transfer body is provided in the vicinity of the outer periphery of the transfer table and includes a through-hole penetrating the transfer table. 6. The workpiece measuring device according to claim 5 , wherein the holding unit of the transfer body is provided on one surface of the transfer table and includes a transfer nozzle that advances and retreats with respect to the one surface. A plurality of holders each holding a workpiece and a sample workpiece, and a transport body provided rotatably;
Separation supply means for individually separating and supplying workpieces to the holding unit of the carrier;
A measuring unit that is disposed on the downstream side of the separation supply unit and measures the characteristics of the workpiece and the sample workpiece held in the holding unit of the transport body;
A discharge means that is disposed on the downstream side of the measurement means and discharges the work held by the holding portion of the transport body;
Between the separation feeding means and measuring means, the sample workpiece supply means having a plurality of storage portions sample workpiece is accommodated supplies a plurality of sample workpieces previously reference characteristic is defined in hold portion of the carrier Provided,
A control device for controlling the transport body, the separation supply means, the measurement means, the discharge means, and the sample work supply means is provided, and the control device recognizes the holding portion of the transport body in which each sample is stored, A comparison unit that individually recognizes the measurement results of the sample workpieces measured by the measuring means, compares the individually recognized measurement results of the sample workpieces with the reference characteristics of the corresponding built-in sample workpieces, and calculates the difference And an alarm unit that is connected to the comparison unit and issues an alarm when the difference between the measurement result and the reference characteristic of the sample work exceeds a predetermined value. The sample work supply means is a storage part of the sample work supply means. And a transfer detecting means for detecting that the sample work has been supplied into the holding part of the transport body and that the sample work has been returned to the storage part of the sample work supplying means. In the work measuring method using the click measurement device,
A step in which the control device takes the normal measurement mode, measures the workpiece supplied from the separation supply unit to the holding unit of the transport body by the measurement unit, and then discharges the workpiece from the discharge unit;
The control device takes the sample measurement mode, discharges all the workpieces held in the holder of the carrier from the discharge means and empties all the holders, and then holds the carrier from the storage of the sample workpiece supply means. And a step of measuring the sample work supplied to the part by the measuring means and returning the sample work to the original storage part of the sample work without discharging from the discharging means. 10. The workpiece measuring method according to claim 9, wherein the control device has automatic switching means for automatically switching between the normal measurement mode and the sample measurement mode. 10. The workpiece measuring method according to claim 9, wherein the control device has manual switching means for manually switching between the normal measurement mode and the sample measurement mode. 12. The workpiece measuring method according to claim 11, wherein the manual switching means has a push button switch. The work measuring method according to claim 9, wherein the transport body has a circular transport table. The workpiece measuring method according to claim 13 , wherein the holding unit of the transfer body includes a recess provided on the outer periphery of the transfer table and opening outward.   The workpiece measuring method according to claim 13, wherein the holding unit of the transfer body is provided in the vicinity of the outer periphery of the transfer table and includes a through-hole penetrating the transfer table. 14. The workpiece measuring method according to claim 13 , wherein the holding unit of the transfer body includes a transfer nozzle that is provided on one surface of the transfer table and moves forward and backward with respect to the one surface.

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