JP4655830B2 - Mounting accuracy judgment device - Google Patents

Description

  The present invention relates to an attachment accuracy determination device, and more specifically, to a flange member of a shaft member of a shaft-attached flange member in which one end of a linear shaft member is attached to the center of a cylindrical flange member perpendicularly to the flange member. The present invention relates to an attachment accuracy determination device for determining the attachment accuracy of the.

  A method for determining the mounting accuracy between the flange portion of a shaft-attached flange member, for example, a linear solenoid plunger, and the shaft, which is attached to a cylindrical flange portion vertically, is to rotate while holding the shaft. This is performed by detecting the degree of blurring of the flange portion accompanying this rotation. The accuracy of mounting the flange member with a shaft is different depending on the purpose of use of the flange member with the shaft, but a high accuracy is required for the plunger of the above-described linear solenoid that is frequently operated.

  In the method for determining the mounting accuracy of the shaft flange member described above, the shaft flange member is manually attached to a detection device, the shaft flange member is rotated to detect the mounting accuracy, and the shaft flange member is manually detected after detection. Since this is performed from the apparatus, there are many manual operations, and the time required for detecting the mounting accuracy of the flange member with the shaft becomes longer. In addition, since it is assumed that the flange member with a shaft is properly attached to the detection device, proper attachment accuracy cannot be detected if the flange member is attached inappropriately even a little. Furthermore, in the detection of the mounting accuracy of the flange member with a shaft that requires high mounting accuracy, the accuracy varies depending on the degree of rotation of the flange member with the shaft, and thus high rotation accuracy is also required.

  An object of the mounting accuracy determination device of the present invention is to more appropriately determine the mounting accuracy of a flange member with a shaft. Another object of the mounting accuracy determination device of the present invention is to determine the mounting accuracy of the shaft flange member with higher accuracy. Furthermore, an object of the mounting accuracy determination device of the present invention is to more quickly determine the mounting accuracy of the shaft flange member. Alternatively, it is an object of the mounting accuracy determination device of the present invention to make the operation when determining the mounting accuracy of the flange member with shaft easier. In addition, an object of the mounting accuracy determination apparatus of the present invention is to determine the mounting accuracy of flange members with shafts having different shaft lengths.

  The attachment accuracy determining apparatus of the present invention employs the following means in order to achieve at least a part of the above-described object.

The mounting accuracy judging device of the present invention is
Attachment accuracy determination for determining the attachment accuracy of the shaft member to the flange member by attaching one end of a linear shaft member substantially perpendicular to the flange member at the center of the cylindrical flange member A device,
Support means for rotatably supporting the shaft flange member;
Positioning means for positioning the shaft member with respect to one of the shaft members in the axial direction by abutting the other end of the shaft member of the shaft-attached flange member so as to enable rotation of the shaft member;
The first flange member with the shaft is brought into contact with the first shaft member of the flange member with the shaft, and the first flange member with the first force acting in the direction in which the shaft member is positioned by the positioning means. The first flange drive is rotated in the rotation direction, and the second force acting in the direction of releasing the positioning of the shaft member by the positioning means with respect to the shaft member is the first flange member with the shaft. A rotation means capable of second rotation driving to rotate in a second rotation direction opposite to the rotation direction of
An attachment accuracy detecting means for detecting an attachment accuracy between the flange member and the shaft member in accordance with the rotation of the flange member of the shaft-attached flange member accompanying the first rotation drive;
It is a summary to provide.

  In the mounting accuracy judging apparatus of the present invention, the first rotating drive is performed by the rotating means while the supporting means rotatably supports the shaft flange member and the positioning means substantially positions the shaft flange member. Since the first rotation drive rotates the flange member with the shaft in the first rotation direction with the first force acting in the direction in which the shaft member is positioned by the positioning means with respect to the shaft member, the first rotation is performed. Even when the shaft-mounted flange member is not completely positioned by the positioning means when the drive is performed, the shaft-attached flange member moves in the direction in which the positioning means performs positioning by the action of the first force. Positioning is complete. The attachment accuracy detecting means detects the attachment accuracy between the flange member and the shaft member as the flange member of the shaft-attached flange member rotates in accordance with the first rotational drive. As described above, since the mounting accuracy between the flange member and the shaft member is detected by mechanical operation, the determination of the mounting accuracy of the shaft flange member can be performed more appropriately and with high accuracy, and the shaft flange member The attachment accuracy can be determined more quickly. In addition, the first rotation drive is performed by the rotating means in a state where the flange member with shaft is substantially positioned, and the mounting accuracy is detected after the shaft flange member is completely positioned by the action of the first force. The operation at the time of determining the mounting accuracy of the flange member with a shaft can be simplified, and the determination of the mounting accuracy of the flange member with a shaft can be more appropriately performed.

  In such a mounting accuracy determination device of the present invention, the support means is a means for supporting a part of the shaft member of the flange member with a shaft from below, and the rotation means has a predetermined length and the support means. A contact means for contacting the shaft member at a predetermined angle different from a right angle to the axial direction of the shaft member from above the shaft member at a position aligned with the support of the shaft member; And a reciprocating means for reciprocating in the direction of the angle. When the abutting means is reciprocated, the abutting means moves in a state where it abuts on the shaft member at a predetermined angle. Accordingly, a force acts in the angular direction along with the movement, and the shaft-attached flange member is moved in that direction. Try to. Therefore, the first rotation drive can be performed by moving the contact means in the movement direction in which the force acting in the direction for positioning the shaft member by the positioning means with respect to the shaft member can be performed. The second rotation drive can be performed by moving the movement in the direction opposite to the movement direction. In the attachment accuracy determining apparatus according to the aspect of the invention in which the rotating means includes the contact means and the reciprocating means, the contact means is formed by the arm portion having the predetermined length and a rubber-like member. A contact portion attached to the lower portion and contacting the shaft member may be provided. In this way, the friction between the rubber-like member and the shaft member can be increased during the reciprocating motion of the contact means, and the rotation of the shaft member and the action of the first force and the second force can be more reliably performed. It can be.

  In the attachment accuracy determination device of the present invention, the positioning means may be means for changing the position of the shaft member in the axial direction and positioning the shaft member in one of the axial directions. In this way, the axial positioning position can be changed. As a result, it is possible to detect the mounting accuracy between the flange member and the shaft member in the shaft-attached flange member having a different shaft length.

  Furthermore, in the mounting accuracy judging apparatus of the present invention, the positioning means is a means for supporting the shaft-attached flange member together with the support means, and the support means releases the support of the shaft-attached flange member by the positioning means. When this is done, it may be a means for releasing the support of the flange member with the shaft. In this way, the shaft flange member can be supported by the support means and the positioning means. In this aspect of the mounting accuracy determination device of the present invention, the positioning means may be a means having a support portion that supports at least the other end of the shaft member from above.

  In the mounting accuracy judging device of the present invention in which the shaft-equipped flange member is supported by the support means and the positioning means, the support by the positioning means of the flange-with-shaft member is released and the support by the support means is released. It is also possible to provide a pay-out means for receiving the flange member with a shaft and paying out the flange member with the shaft from the detection position. If it carries out like this, the flange member with a shaft which complete | finished the detection of attachment precision can be automatically paid out from a detection position. Therefore, when determining the mounting accuracy of the shaft-attached flange member, the operation of removing the shaft-attached flange member is not required only by attaching the shaft-attached flange member so that it is supported by the support means and the positioning means. As a result, the operation for determining the mounting accuracy of the flange member with the shaft can be simplified.

  Further, in the attachment accuracy determination device of the present invention, the attachment accuracy detection means may be configured so that the predetermined rotation of the shaft-attached flange member after the rotation of the shaft-attached flange member has started with the first rotation drive. It may be a means for starting detection of the mounting accuracy with the shaft member. In this way, it is possible to detect the mounting accuracy between the flange member and the shaft member after the flange member with shaft is completely positioned. As a result, the mounting accuracy can be detected with high accuracy.

  Next, the best mode for carrying out the present invention will be described using examples.

  FIG. 1 is a top view of a mounting accuracy determining device 20 for a shaft flange member as an embodiment of the present invention, and FIG. 2 is a view taken along the line AA of the mounting accuracy determining device 20 of FIG. 3 is a BB view of the attachment accuracy determination device 20 of FIG. 1 viewed from the BB plane, and FIG. 4 is a CC view of the attachment accuracy determination device 20 of FIG. 1 viewed from the CC plane. is there. In FIGS. 1, 2, and 4, the members (V block 22, detection unit 40) whose appearance is taken into consideration for easy viewing are hatched. FIG. 5 is a perspective view showing the appearance of the plunger 10 of the linear solenoid that is the flange member with the shaft in the embodiment. As shown in FIG. 5, the plunger 10 has a straight rod-like shaft 14 having a diameter L2 and a length L1 vertically attached to the center of a disc-shaped flange portion 12 having a diameter R1.

  The mounting accuracy determination device 20 according to the embodiment is configured as a device that determines the mounting accuracy between the flange portion 12 of the plunger 10 and the shaft 14, that is, the accuracy of the perpendicularity (perpendicularity) in the mounting. As shown in FIG. 2, a V block 22 disposed at the lower part of the center of the apparatus for mounting the plunger 10 by the shaft 14, and the plunger 10 mounted on the V block 22 supported by the V block 22. At the same time, a positioning portion 24 for positioning the plunger 10 in the axial direction by the end portion of the shaft 14 of the plunger 10 and a V block 22 are arranged on the V block 22 to contact the shaft 14 of the plunger 10 in both forward and reverse directions. A rotation drive unit 30 for rotating the flange and a flange based on the position of the outer peripheral portion of the flange portion 12 of the plunger 10 disposed on both sides of the device A detection unit 40 that detects the mounting accuracy between the shaft 12 and the detection unit 40; a receiving unit 50 that receives the plunger 10 that has been paid out after the detection unit 40 detects the mounting accuracy between the flange unit 12 and the shaft 14; Display 72 and an electronic control unit 60 for controlling the entire apparatus. Note that the V block 22, the positioning unit 24, the rotation driving unit 30, the detection unit 40, the receiving unit 50, and the like are placed on the base 52.

  As shown in FIG. 2, the V block 22 is installed on the upper portion of the support base 21 having a height H1 attached to the upper portion of the base 52, and its width L3 is shorter than the length L1 of the shaft 14 of the plunger 10 and The height H2 from the support base 21 is formed between the radius (R1 / 2) of the flange portion 12 of the plunger 10 and the radius (R2 / 2) of the shaft 14 so as to be shorter than the width L2 of the support base 21. It is formed to be higher than the sum. Therefore, when the plunger 10 is disposed on the V block 22, a gap is generated between the side surface of the flange portion 12 and the support base 21. A groove 23 having a depth D1 shallower than the diameter R2 of the shaft 14 is provided in an upper portion of the V block 22 in a V shape in the width direction. Therefore, when the plunger 10 is disposed in the groove 23 of the V block 22, the shaft 14 does not completely fit in the V block 22 and protrudes from the upper portion of the V block 22 by the length L 4. In addition, the shape of the groove | channel 23 is not restricted to V shape, For example, a concave shape etc. may be sufficient.

  As shown in FIGS. 1, 3, and 4, the positioning unit 24 includes a positioning arm 25 provided on a substantially extension of the shaft 14 when the plunger 10 is disposed in the groove 23 of the V block 22, and a base 52. And an arm support portion 28 that is installed on an upper portion of a support base 27 that is attached to the upper portion and supports the positioning arm 25. The positioning arm 25 has an opening 29 having a substantially square shape with a length L5 slightly larger than the diameter R2 of the shaft 14 of the plunger 10 and a depth D2 slightly deeper than the length L5 (see FIG. 4). In the opening 29, a sphere 26 having a diameter R3 slightly smaller than the length L5 is fitted. The plunger 10 is supported by the positioning portion 24 together with the V block 22 when the end of the shaft 14 is hooked on the opening 29, and is positioned when the end of the shaft 14 abuts against the sphere 26. The arm support portion 28 slides in the axial direction of the positioning arm 25 while supporting the positioning arm 25 so that the distance to the V block 22 can be changed. Therefore, the positioning position of the plunger 10 can be changed according to the length of the shaft 14 of the plunger 10. That is, when the shaft 14 is long, the arm support portion 28 is slid in the direction away from the V block 22 to place the positioned flange portion 12 of the plunger 10 in the proper detection range by the detection portion 40, and the shaft 14 is short. Sometimes, the flange portion 12 of the positioned plunger 10 can be placed in an appropriate detection range by the detection portion 40 by sliding the arm support portion 28 in a direction approaching the V block 22.

  As shown in FIGS. 1 and 2, the rotary drive unit 30 is an arm that is disposed above the V block 22 and has a length L6 in a direction of an angle α different from a right angle with respect to the axial direction of the shaft 14 of the plunger 10. A portion 32, a rubber-like portion 34 formed of, for example, silicon rubber and attached to the lower portion of the arm portion 32, and an arm portion 32 that is installed on the upper portion of the base 52 and via the connecting portions 35 and 36 in the direction of angle α And a drive unit 38 that reciprocates the arm unit 32 in the direction of the angle α with respect to the shaft 14 of the plunger 10. Between the arm part 32 and the connecting part 35, an arch 39 having a width L7 larger than the diameter R2 of the shaft 14 of the plunger 10 is provided. The rubber-like portion 34 is formed so that the distance between the lower end thereof and the V block 22 is substantially L4, and comes into contact with the shaft 14 when passing over the shaft 14 as the arm portion 32 reciprocates. At this time, since the shaft 14 is held in the groove 23 of the V block 22, the shaft 14 rotates without being detached from the groove 23. As described above, since the arm portion 32 reciprocates in the direction of the angle α with respect to the shaft 14, an axial force acts on the shaft 14 in addition to the rotational force. Now, consider a case where the arm portion 32 is pulled from the state of FIGS. FIG. 6 shows a state at this time, and FIG. 7 shows a state where the attachment accuracy determining device 20 of FIG. 6 is viewed from the CC plane. 6 and 7, the alternate long and short dash line indicates a state before the arm portion 32 is moved, and the solid line indicates a state after the arm portion 32 is moved. Based on the movement of the arm portion 32 at an angle α, a force in the direction of the positioning portion 24 acts on the shaft 14 of the plunger 10 in addition to the rotational force. As described above, since the shaft 14 is in the state of being caught by the opening 29 of the positioning arm 25, the shaft 14 comes into contact with the ball 26 fitted in the opening 29 by a slight axial movement, and the plunger 10 is completely Positioning is performed. After that, axial force still acts on the shaft 14 of the plunger 10, but the end of the shaft 14 is supported by the sphere 26, so that the plunger 10 is not moved in the axial direction. In this embodiment, the rotation drive of the plunger 10 when the arm portion 32 is pulled toward the drive portion 38 is referred to as “first rotation drive”. Next, consider the case where the arm portion 32 is returned to the state shown in FIGS. FIG. 8 shows the state at this time, and FIG. 9 shows the attachment accuracy determination device 20 of FIG. 8 viewed from the CC plane. 8 and 9, the alternate long and short dash line indicates the state before moving the arm portion 32 (the state of the solid line in FIG. 6), and the solid line indicates the state after the arm portion 32 is moved. In the shaft 14 of the plunger 10, a rotational force that rotates the arm portion 32 in the direction opposite to the rotation direction in the first rotation driving that pulls the arm portion 32 toward the drive portion 38 and a direction in which the end portion of the shaft 14 is separated from the sphere 26. The power of Since there is nothing in the mounting accuracy determination device 20 of the embodiment that restricts the end of the shaft 14 of the plunger 10 from moving away from the sphere 26, the plunger 10 moves along with the movement of the arm portion 32. Move to 50 side. Depending on the length of the arm portion 32, the width of the V block 22, and the balance of the plunger 10, when the rubber-like portion 34 is separated from the shaft 14 of the plunger 10 due to the movement of the arm portion 32, the plunger 10 becomes the positioning portion. The support by 24 and the support by the rubber-like part 34 are lost, and the balance is lost due to its own weight, and it is paid out to the receiving part 50 side (see FIG. 9). The rotational drive of the plunger 10 when the arm portion 32 is pulled away from the drive portion 38 side will be referred to as “second rotational drive” in the embodiment. Thus, the rotation drive unit 30 performs the first rotation drive and the second rotation drive described above by reciprocating the arm unit 32 with the angle α with respect to the shaft 14 of the plunger 10.

  As shown in FIGS. 1 and 2, the detection unit 40 includes a light emitting unit 42 and a light receiving unit 44 that are attached to both sides of the apparatus so that the flange unit 12 of the plunger 10 has good visibility. Light is emitted from the light emitting part 42 to the flange part 12 of the plunger 10 rotating while being positioned by the arm 25, and image processing is performed based on the light received by the light receiving part 44 as the light is emitted. To calculate and output the fluctuation amount ΔX accompanying the rotation of the distance X between the lower end of the flange portion 12 and the support base 21. As will be described later, the determination of the mounting accuracy of the plunger 10 is performed based on whether or not the fluctuation amount ΔX is less than or equal to the allowable fluctuation amount Xref.

  As shown in FIG. 1, the electronic control unit 60 is configured as a microcomputer centering on a CPU 62 as a central processing arithmetic circuit. In addition to the CPU 62, a ROM 64 for storing a processing program and the like are temporarily stored. A RAM 66 for storing, a timer 68 for measuring time, and an input / output port (not shown) are provided. The electronic control unit 60 receives a start signal from the start switch 70 instructing to start determination of the mounting accuracy of the plunger 10 and a variation ΔX from the light receiving unit 44 through the input port. The electronic control unit 60 outputs a drive signal to the drive unit 38, a control signal to the light emitting unit 42, and the like via an output port.

  Next, operation | movement of the attachment precision determination apparatus 20 comprised in this way is demonstrated. FIG. 10 shows the mounting accuracy of the plunger 10 executed by the electronic control unit 60 when the start switch 70 is turned on by the operator while the plunger 10 is supported by the V block 22 and the positioning unit 24. It is a flowchart which shows an example of the processing routine to perform.

  When the start switch 70 is turned on and the processing routine is started, the CPU 62 of the electronic control unit 60 first outputs a drive signal to the drive unit 38 to perform the first rotation drive and the second rotation drive by the drive unit 38. A reciprocating motion that is continuously performed is started (step S100), and a process of waiting for a predetermined time to elapse after starting the first rotation drive by the drive unit 38 is executed (step S110). Here, as the predetermined time, in the embodiment, the axial movement of the shaft 14 accompanying the first rotation drive from the state where the end of the shaft 14 of the plunger 10 is barely caught in the opening 29 of the positioning portion 24. Is set as a time longer than the time required for the end portion of the shaft 14 to contact the sphere 26 in the opening 29 and complete positioning by the positioning portion 24 is performed. 2 seconds or the like can be used. The process of waiting for a predetermined time after starting the first rotational drive in this way is a process of waiting for the plunger 10 to be completely positioned by the positioning unit 24.

  When a predetermined time elapses after starting the first rotation drive, a drive signal is output to the light emitting unit 42 of the detecting unit 40 to start detecting the mounting accuracy of the plunger 10 (step S120), and the light receiving unit of the detecting unit 40 44, the fluctuation amount ΔX (the fluctuation amount of the distance X from the support base 21 of the flange portion 12 of the plunger 10) as a detection result is input (step S130). In the embodiment, the mounting accuracy of the plunger 10 is performed while the first rotation drive is being performed, and the fluctuation amount ΔX is input at the timing when the first rotation drive is completed or slightly later. It is.

  The input fluctuation amount ΔX is compared with the allowable fluctuation amount Xref (step S140). When the fluctuation amount ΔX is equal to or smaller than the allowable fluctuation amount Xref, it is determined that the accuracy of attaching the shaft 14 to the flange portion 12 of the plunger 10 is good. The display 72 indicates that the mounting accuracy has passed (step S150), the process is terminated, and when the variation ΔX is larger than the allowable variation Xref, it is determined that the mounting accuracy of the plunger 10 is poor, The display 72 indicates that the mounting accuracy has failed (step S160), and the process ends.

  Here, since the drive unit 38 performs the second rotation drive continuously after the first rotation drive, the plunger 10 supported by the V block 22 and the positioning unit 24 is driven by the drive unit 38 in the second rotation drive. Is moved to the receiving portion 50 side along the groove 23 of the V block 22, and when the contact of the rubber portion 34 of the arm portion 32 with the shaft 14 is released, the balance is lost and the payout is made from the V block 22. And is received by the receiving portion 50. Therefore, the operator can further divide the plungers 10 paid out to the receiving portion 50 based on the acceptance / rejection displayed on the display 72.

  According to the mounting accuracy determination device 20 of the embodiment described above, the mounting accuracy of the plunger 10 is determined in accordance with the stable first rotation drive by the drive unit 38, so the mounting accuracy of the plunger 10 is determined more appropriately. It is possible to determine the mounting accuracy of the plunger 10 with higher accuracy. In addition, the first rotation drive is performed to move the arm portion 32 of the rotation drive unit 30 with respect to the shaft 14 of the plunger 10 at an angle α, and the plunger 10 is moved by the positioning unit 24 after the first rotation drive is started. Since the detection of the mounting accuracy of the plunger 10 is started after the positioning has been completed, the mounting accuracy of the plunger 10 can be more reliably determined with higher accuracy. As a result, the operator attaches the plunger 10 so that the shaft 14 of the plunger 10 is supported by the V block 22 and the opening 29 of the positioning portion 24, and pushes the start switch 70 to increase the mounting accuracy of the plunger 10. Can be determined. That is, the operation for determining the mounting accuracy of the plunger 10 can be simplified.

  Further, according to the attachment accuracy determination device 20 of the embodiment, after the determination of the attachment accuracy of the plunger 10 accompanying the first rotation drive by the drive unit 38 is performed, the second rotation drive by the drive unit 38 is continuously performed. Thus, the plunger 10 can be automatically paid out to the receiving portion 50. Therefore, since the operator only needs to separate the plungers 10 paid out to the receiving unit 50 based on the pass / fail displayed on the display 72, the installation accuracy of the plungers 10 can be quickly determined. As a result, it is possible to more easily, more easily and quickly determine the mounting accuracy of the multiple plungers 10.

  Furthermore, according to the mounting accuracy determination device 20 of the embodiment, the positioning position by the positioning portion 24 can be changed by sliding the arm support portion 28 of the positioning portion 24. The jar 10 can determine the mounting accuracy more appropriately.

  In the mounting accuracy determination device 20 of the embodiment, the positioning position by the positioning unit 24 can be changed by sliding the arm supporting unit 28 of the positioning unit 24. However, the arm supporting unit 28 of the positioning unit 24 is slid. It may be fixed so that it does not occur.

  In the mounting accuracy determination device 20 of the embodiment, the plunger 10 is paid out to the receiving portion 50 with the second rotational drive by the driving portion 38. However, the plunger 10 is fixed to the receiving portion 50 based on whether the mounting accuracy is acceptable. It is also possible to provide means for sorting out the plungers 10 that have been paid out automatically.

  In the mounting accuracy determination device 20 of the embodiment, immediately after determining the mounting accuracy of the plunger 10 with the first rotation drive by the drive unit 38, the plunger 10 is received with the second rotation drive by the drive unit 38. However, the plunger 10 may not be paid out by the second rotation drive by the drive unit 38.

  In the mounting accuracy determination device 20 of the embodiment, the mounting accuracy of the plunger 10 of the linear solenoid having the shaft 14 attached to the flange portion 12 is determined, but the shaft is attached to the center of the cylindrical flange portion. If it is a flange member with a shaft, the attachment accuracy between the flange portion and the shaft in any member other than the plunger of the linear solenoid may be determined.

  The best mode for carrying out the present invention has been described with reference to the embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the gist of the present invention. Of course, it can be implemented in the form.

  The present invention can be used in the manufacturing industry of a mounting accuracy determination device.

It is a top view of the attachment precision determination apparatus 20 of the flange member with a shaft as one Example of this invention. It is the AA view which looked at the attachment precision determination apparatus 20 of FIG. 1 from the AA surface. It is the BB view which looked at the attachment accuracy determination apparatus 20 of FIG. 1 from the BB surface. It is CC view which looked at the attachment accuracy determination apparatus 20 of FIG. 1 from CC plane. It is a perspective view which shows the external appearance of the plunger 10 of the linear solenoid which is a flange member with a shaft in an Example. It is explanatory drawing which shows the mode of the attachment precision determination apparatus 20 at the time of pulling the arm part 32 toward the drive part 38 side. It is CC view which looked at the attachment precision determination apparatus 20 of FIG. 6 from CC plane. It is explanatory drawing which shows the mode of the attachment precision determination apparatus 20 at the time of pulling apart the arm part 32 from the drive part 38 side. It is CC view which looked at the attachment precision determination apparatus 20 of FIG. 8 from CC plane. 3 is a flowchart showing an example of a processing routine for determining the mounting accuracy of the plunger 10 executed by the electronic control unit 60.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Plunger, 12 Flange part, 14 axis | shaft, 20 Mounting accuracy determination apparatus, 21 Support stand, 22 V block, 23 Groove, 24 Positioning part, 25 Positioning arm, 26 Ball, 27 Support base, 28 Arm support part, 29 Opening Part, 30 rotation drive part, 32 arm part, 34 rubber-like part, 35, 36 connection part, 38 drive part, 39 arch, 40 detection part, 42 light emitting part, 44 light receiving part, 50 receiving part, 52 base, 60 electron Control unit, 62 CPU, 64 ROM, 66 RAM, 68 timer, 70 start switch, 72 display.

Claims (8)

Attachment accuracy determination for determining the attachment accuracy of the shaft member to the flange member by attaching one end of a linear shaft member substantially perpendicular to the flange member at the center of the cylindrical flange member A device,
Support means for rotatably supporting the shaft flange member;
Positioning means for positioning the shaft member with respect to one of the shaft members in the axial direction by abutting the other end of the shaft member of the shaft-attached flange member so as to enable rotation of the shaft member;
The first flange member with the shaft is brought into contact with the first shaft member of the flange member with the shaft, and the first flange member with the first force acting in the direction in which the shaft member is positioned by the positioning means. The first flange drive is rotated in the rotation direction, and the second force acting in the direction of releasing the positioning of the shaft member by the positioning means with respect to the shaft member is the first flange member with the shaft. A rotation means capable of second rotation driving to rotate in a second rotation direction opposite to the rotation direction of
An attachment accuracy detecting means for detecting an attachment accuracy between the flange member and the shaft member in accordance with the rotation of the flange member of the shaft-attached flange member accompanying the first rotation drive;
A mounting accuracy determination device comprising: The mounting accuracy determination device according to claim 1,
The support means is means for supporting a part of the shaft member of the flange member with shaft from below,
The rotating means has a predetermined length and a predetermined angle different from a right angle with respect to the axial direction of the shaft member from above the shaft member at a position aligned with the support of the shaft member of the support means. An attachment accuracy determination device, comprising: a contact means for contacting a member; and a reciprocating means for reciprocating the corresponding contact means in the direction of the predetermined angle.   The mounting accuracy according to claim 2, wherein the contact means includes an arm portion having the predetermined length and a contact portion that is formed of a rubber-like member and is attached to a lower portion of the arm portion so as to contact the shaft member. Judgment device.   4. The attachment accuracy determination device according to claim 1, wherein the positioning unit is a unit that changes a position of the shaft member in the axial direction to perform positioning relative to one of the shaft members in the axial direction. 5. The mounting accuracy judging device according to any one of claims 1 to 4,
The positioning means is means for supporting the flange member with a shaft together with the support means,
The support means is means for releasing support of the flange member with a shaft when the support of the flange member with the shaft by the positioning device is released.   6. The attachment accuracy determination apparatus according to claim 5, wherein the positioning means is a means having a support portion that supports at least the other end of the shaft member from above.   Discharging means for receiving the shaft flange member from the detection position by receiving the shaft flange member when the support by the positioning means of the shaft flange member is released and when the support by the support means is released is provided. The attachment accuracy judging device according to claim 5 or 6. The attachment accuracy detecting means starts detecting the attachment accuracy between the flange member and the shaft member after a predetermined rotation has elapsed since the rotation of the flange member with shaft was started in association with the first rotation drive. The attachment accuracy judging device according to any one of claims 1 to 7, wherein the attachment accuracy judging device.

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