JP4398175B2 - Punch press - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is, for example, a turret punch press For punch press More specifically, an antenna coil in a reader / writer for reading and writing data of an ID tag provided on an upper portion of a punch die is provided in a striker provided in a punch press so as to be movable up and down. For punch press Related.
[0002]
[Prior art]
Conventionally, management of punch dies that are used after being attached to and removed from the punch press, and the station number in the punch press and the punch dies attached to the station are linked to improve the work efficiency of NC tape creation. For this purpose, a technique has been developed in which a punch die is provided with a bar code and a sensor for reading the bar code is provided in the punch press (see, for example, Patent Document 1).
[0003]
Also, an ID tag storing mold information is provided at the top of the punch mold, and an antenna coil in a reader / writer for reading and writing data to the ID tag is provided in the punch press so as to be movable up and down. Further, a configuration provided for a striker has also been developed (see, for example, Patent Documents 2 and 3).
[0004]
[Patent Document 1]
Japanese Patent No. 2507722
[0005]
[Patent Document 2]
Japanese Utility Model Publication No. 4-134220
[0006]
[Patent Document 3]
Utility Model Registration No. 2533925
[0007]
[Problems to be solved by the invention]
The configuration described in Patent Document 1 has a problem that it becomes difficult to read the bar code by the sensor when the bar code provided in the punch die is soiled.
[0008]
As described in Patent Documents 1 and 2, in the structure in which the ID tag is provided on the upper part of the punch die and the striker in the punch press is provided with the reader / writer antenna coil, there is little influence of dirt on the punch die. However, since the striker and the punch mold are made of metal, there is a problem that if the antenna coil and the ID tag are embedded in the metal, the communication distance is shortened due to the influence of the surrounding metal, and the back surface of the ID tag is Contact with metal may make communication impossible.
[0009]
Therefore, in the configurations described in Patent Documents 2 and 3, in order to read the data of the ID tag provided on the upper portion of the punch die, the punch die and the striker are positioned so as to face each other vertically. After that, it is necessary to lower the striker to a position where it can communicate (until the distance between the punch die and the striker is about 2 to 4 mm), and it takes time to read and write the ID tag data. There is a problem in improving efficiency.
[0010]
Furthermore, there is a problem that the impact when the punch die is pressed by the striker is large, and the antenna coil sometimes falls off the striker.
[0011]
In addition, the conventional punch press is provided with a working fluid supply device and an oil mist supply hole in the striker for the purpose of lubrication and cooling of the punch die and prevention of dregs after punching, and the punch die side Has developed a punch press that has an introduction hole that can be connected to the oil mist supply hole and guides the oil mist to the tip side.
[0012]
In the conventional punch press as described above, when the punch mold is pressed by a vertically movable striker, oil mist is ejected from the oil mist supply hole provided in the striker to the introduction hole provided in the punch mold. Therefore, lubrication and cooling of the punch die are effectively performed, and it is effective and useful for preventing the residue from rising after punching of the workpiece.
[0013]
However, conventionally, when supplying a working fluid such as oil mist from a pressure system such as a pump to a punch mold, the oil mist or the like is supplied with a constant discharge amount regardless of the diameter size of the punch mold. It is what. In this case, if the discharge amount of the working fluid is set to be constant for the small-diameter punch die, the working fluid tends to be insufficient in the case of the large-diameter punch die. In general, the discharge amount is set to be constant corresponding to the mold.
[0014]
Therefore, conventionally, a large amount of working fluid is always discharged in response to a large-diameter size punch die, and in the case of a small-diameter size punch die, there is an excessive amount of oil and spraying around may occur. There is a problem that the work environment is polluted and the oil mist adhering to the work is more than necessary.
[0015]
Therefore, it is desired to supply an appropriate amount of working fluid such as oil mist corresponding to the punch diameter size, and the working fluid such as oil mist is controlled to an appropriate amount corresponding to the punch diameter size of the punch die. In order to achieve this, it is necessary to know the diameter size of the punch die that is relatively indexed and positioned at the lower position of the striker.
[0016]
[Means for Solving the Problems]
The present invention has been made in view of the conventional problems as described above, and a punch press according to the present invention includes a punch holder that supports a punch die, a die holder that supports a die die, and the punch die. Punch press comprising a striker that can freely move up and down and that has an antenna coil of a reader / writer for reading and writing data of an ID tag provided on the upper part of the punch die In the present invention, the antenna coil is insulated from the striker by an insulator provided around the antenna coil disposed in the insertion hole formed on the lower end surface side of the striker. In this structure, the insulator is provided with an engaging portion that can be locked to the engaging portion.
[0017]
Moreover, this invention is the said punch press, The said latching | locking part is the structure formed of the level | step-difference part between the large diameter part provided in the upper part of the said insertion hole, and the said insertion hole.
[0018]
Moreover, this invention is the structure which provided the cylindrical-shaped magnetic body substantially the same length as the said antenna coil or longer than the said antenna coil inside the said antenna coil in the said punch press.
[0019]
In the punch press, a cylindrical magnetic case having substantially the same length as the antenna coil or longer than the antenna coil is provided between the outer peripheral surface of the antenna coil and the insulator. .
[0020]
Moreover, this invention is a structure which equips the lower end part of the said magnetic case with the inner side flange part which covers the lower end surface of the said antenna coil in the said punch press.
[0021]
Moreover, this invention is the structure which equips the inside of the said antenna coil with the resin-made pipes connected with the fluid supply port provided in the striker in the said punch press.
[0022]
The present invention also relates to a method of mounting an antenna coil of a reader / writer for reading and writing data of an ID tag provided on an upper part of a punch die on a striker in a punch press. After positioning the antenna coil in the insertion hole formed on the side, resin is molded in the insertion hole, and the antenna is integrated into the striker and the antenna coil in a state where the antenna coil is insulated from the striker. This is a mounting method for mounting a coil.
[0023]
Further, the present invention provides the above mounting method, wherein an antenna coil is formed on a striker that forms a large-diameter hole larger than the insertion hole in the upper portion of the insertion hole, and molds resin over the insertion hole and the large-diameter hole. It is the mounting method to mount.
[0024]
Further, according to the present invention, in the mounting method, a cylindrical magnetic body having the same length as the antenna coil or longer than the antenna coil is disposed in the antenna coil, and the antenna coil and the magnetic body are made of the striker with a resin. This is a mounting method in which an antenna coil is mounted on a striker that is integrated with the antenna.
[0025]
Further, according to the present invention, in the mounting method described above, the antenna coil and the insertion hole are centered using a jig for centering the antenna coil and the insertion hole, and the centering state is maintained. And mounting an antenna coil on a striker that molds resin in the insertion hole.
[0031]
DETAILED DESCRIPTION OF THE INVENTION
Referring to FIG. 8, a punch press 1 according to an embodiment of the present invention includes a punch die P and a die die D for pressing a plate-like workpiece W, and the punch die. A striker 3 capable of freely pressing P is provided so as to be movable up and down.
[0032]
The punch die P and the die die D are detachably mounted on the punch holder 5 and the die holder 7 in the same manner as a general punch press.
[0033]
The punch holder 5 and the die holder 7 correspond to, for example, a rotatable upper and lower turret in a turret punch press, and the punch holder 5 and the plurality of punch dies P and die dies D supported by the die holder 7 are It is provided so that it can be indexed and positioned below the striker 3. In the punch press, a striker 3 that is movable up and down with respect to the upper and lower punch holders 5 and 7 is moved in one direction of the X and Y axes or in the X and Y axis directions, so There is also a punch press that can be indexed and positioned at an upper position.
[0034]
In the punch press 1, relative indexing positioning of the punch die P and die die D to the position corresponding to the striker 3, and X and Y of the workpiece W to the processing position (position corresponding to the striker 3). The operations of the punch press 1 such as the relative movement positioning in the direction and the vertical movement of the striker 3 are controlled by the NC device 9 in the same way as a normal punch press, and this type of punch press is known. Thus, a more detailed description of the punch press 1 is omitted.
[0035]
The striker 3 is provided with a fluid supply port 11 that is connected to an introduction hole (not shown) provided in the punch die P and ejects a working fluid such as oil mist when the punch die P is pressed. A working fluid supply device is connected to the fluid supply port 11.
[0036]
That is, in the connection circuit 15 that connects the fluid supply port 11 and the pressure source 13, an appropriate on-off valve 17 such as a solenoid valve that can freely connect and disconnect the connection circuit 15 is disposed. Further, the connection circuit 15 is provided with a negative pressure generating device 19 that generates a negative pressure when the open / close valve 17 is connected to open and sucks oil from the oil tank T. In the connection circuit 21 connected to the oil tank T, an appropriate on-off valve 23 such as a solenoid valve that can freely connect and disconnect the connection circuit 21 is disposed. The oil tank T is connected to a branch passage 15A that pressurizes the oil tank T.
[0037]
The opening / closing control of the opening / closing valves 17 and 23 is performed by, for example, a valve control device 25 as an air blowing device. In order to input various data and the like of the punch die P to be pressed by the striker 3 to the valve control device 25, the punch die P has an introduction hole. Die specification data indicating that it is an air blow punch or standard punch, die size data such as diameter size data, data on the amount of working fluid supplied, and die type data such as die, molding, tapping, slotting, etc. An RFID (Radio Frequency-Identification) tag 27 (hereinafter referred to as “ID tag”) storing mold material data, purchase history data, and the like is provided.
[0038]
On the other hand, the striker 3 is provided with an antenna coil 31 of a reader / writer 29 for reading data stored in the ID tag 27 and writing data to the ID tag 27.
[0039]
Here, the mounting method of the antenna coil 31 constituting the main part of the embodiment of the present invention and the striker 3 mounted with the antenna coil 31 will be described in detail.
[0040]
Referring to FIG. 1, an insertion hole 33 into which the antenna coil 31 can be inserted is provided on the lower end surface side of the striker 3 so as to be substantially concentric with the fluid supply port 11. A large-diameter hole 35 larger in diameter than the insertion hole 33 is provided in the upper part. Therefore, for example, a stepped portion 37 is formed between the insertion hole 33 and the large-diameter hole 35 as a locking portion for preventing the antenna coil 31 from coming off. The diameter of the insertion hole 33 is slightly larger than the outer diameter of the antenna coil 31 so that a gap G is formed between the inner peripheral surface of the insertion hole 33 and the outer peripheral surface of the antenna coil 31.
[0041]
The antenna coil 31 is inserted into the insertion hole 33 so that the lower end portion of the antenna coil 31 is substantially flush with the lower surface of the striker 3. The antenna coil 31 has substantially the same length as the antenna coil 31. Alternatively, a longer cylindrical magnetic body 39 is inserted. Further, a resin pipe 41 communicating with the fluid supply port 11 is inserted in the inner periphery of the magnetic body 39. Further, a large-diameter portion 45 is formed by press-fitting, for example, a molding resin 43 as an insulator into the large-diameter hole 35 from the gap G between the outer peripheral surface of the antenna coil 31 and the inner peripheral surface of the insertion hole 33. The large diameter portion 45 and the antenna coil 31 are integrated. The antenna coil 31 is integrated with the striker 3 by the resin 43 filled in the large-diameter hole 35 and the gap G, and the antenna coil 31 is integrally held while being insulated from the striker 3.
[0042]
With the above configuration, since the outer periphery of the antenna coil 31 is molded with the resin 43, the metal striker 3 and the antenna coil 31 are fixed and held so that there is a risk of leakage of magnetic flux from the antenna coil 31, etc. Does not occur. Moreover, since the influence from the metal of the striker 3 is avoided, the magnetic flux as a radio wave signal from the antenna coil 31 protrudes relatively large downward from the lower surface of the antenna coil 31, and a good magnetic flux form is ensured. The The antenna coil 31 is integrated with the resin 43, and the resin 43 is formed with a large-diameter portion 45 as an engaging portion that engages with the step portion 37. Therefore, the punch die P will not fall off due to impact or the like when the punch die P is pressed.
[0043]
Further, by providing the antenna coil 31 with the cylindrical magnetic body 39 having an amorphous property having a large magnetic permeability, the magnetic flux can easily pass through the magnetic body 39, and the influence of surrounding metal is reduced. Since the density increases, the density of the magnetic flux in which the magnetic flux of the antenna coil 31 protrudes further downward from the lower surface of the striker 3 increases, and the number of magnetic fluxes linked to the antenna coil provided in the ID tag 27 increases. Thus, communication is ensured even if the antenna coil 31 and the ID tag 27 are relatively far apart. Incidentally, the magnetic flux density of the antenna coil 31 is small if there is no amorphous magnetic body 39, but the magnetic flux density is increased by the presence of the magnetic body 39, so the reliability of data communication (reading and writing) is improved. To do.
[0044]
Referring also to FIG. 2, when the antenna coil 31 is mounted and fixed in the insertion hole 33 of the striker 3, a centering jig 47 is used. The centering jig 47 includes a positioning shaft portion 49 that can be inserted into the fluid supply port 11, an abutting reference surface 51 that abuts against the lower end surface of the striker 3, and a coil projection that abuts the antenna coil 31. An introduction path 57 having an injection port 55 for press-fitting the molding resin 43 into the gap G between the abutting portion 53 and the outer peripheral surface of the antenna coil 31 and the inner peripheral surface of the insertion hole 33, and the introduction path 57 and a resin supply port 59 for supplying the resin 43 to the inside.
[0045]
The mounting procedure of the antenna coil 31 will be described. The positioning shaft portion 49 of the centering jig 47 has a resin pipe 41, a cylindrical magnetic body 39 on the outer side, and an antenna coil 31 on the outer side. The pipes 41, the magnetic body 39, and the end surfaces of the antenna coil 31 are abutted against the coil abutting portion 53. In this state, the antenna coil 31 is inserted into the insertion hole 33, the distal end side of the positioning shaft portion 49 is inserted into the fluid supply port 11, and the abutting reference surface 51 is abutted against the lower end surface of the striker 3. The coil 31 is centered and positioned with respect to the insertion hole 33. In addition, the inlet 55 of the introduction path 57 is located in the gap G between the antenna coil 31 and the insertion hole 33.
[0046]
Next, when the resin 43 for molding is supplied from the resin supply port 59 into the introduction path 57 as indicated by the arrow in FIG. 2, the resin 43 passes through the introduction path 57 and is spaced from the injection port 55. It is press-fitted into the large-diameter hole 35 through G. Therefore, the outer periphery of the antenna coil 31 is molded with the resin 43 and the antenna coil 31 and the like are integrated with the striker 3 with the resin 43. Thereafter, the positioning shaft portion 49 of the centering jig 47 is pulled out from the pipe 41, and the mounting of the antenna coil 31 is completed.
[0047]
In the state in which the resin coil 43 is molded and the antenna coil 31 and the striker 3 are integrated as described above, the antenna coil 31 is insulated from the striker 3 by the insulator (resin 43) and integrally fixed. It is in.
[0048]
Referring to FIG. 3, the structure of striker 3 equipped with antenna coil 31 of another embodiment will be described using the same reference numerals as those in FIG. When mounting the antenna coil 31, the centering jig 47 of the above-described embodiment is used.
[0049]
On the lower end surface side of the striker 3, an insertion hole 33 and a large-diameter hole 35 similar to those in the above-described embodiment are provided. In this embodiment, a ferrite cylindrical magnetic case 63 having an inner flange portion 61 at the lower end is provided outside the antenna coil 31 having the above-described configuration, and other configurations are the same as those described above. Are identical. The magnetic case 63 is held in a state insulated from the striker 3 by the resin 43.
[0050]
According to the above configuration, the magnetic body is located inside and outside the antenna coil 31, and the magnetic flux that is a radio wave signal from the antenna coil 31 passes through the inside and outside magnetic bodies. The influence of the metal can be avoided reliably, the magnetic flux density of the magnetic flux coming out from the lower surface of the striker 3 is increased, and the communication distance can be further increased.
[0051]
Referring again to FIG. 8, the data signal read by the reader / writer 29 is input to the valve control device 25. In the valve control device 25, it is determined whether the diameter of the punch die P belongs to large, medium or small according to the input data signal, and it is a normal punch having no introduction hole. By discriminating, the opening / closing of the on-off valves 17, 23 is controlled.
[0052]
Accordingly, the valve control device 25 is provided with a determining means 65 for determining the punch die P. This discrimination means 65 is a normal punch die having no introduction hole according to the data signal, whether it is an air blow punch having an introduction hole and belonging to a small diameter, or an air blow punch belonging to a medium diameter. It is determined whether or not there is an air blow punch belonging to a large diameter.
[0053]
When the determining means 65 determines that the punch die P is a normal punch die, the on-off valves 17 and 23 are held closed and normal pressing is performed. When the punching die P is an air blow punch by the discriminating means 65 and its diameter size is discriminated, the opening / closing valve 17 is controlled to open and the discriminating size of the punching die P is determined. Thus, the open / close time of the open / close valve 23 is calculated.
[0054]
In other words, in this embodiment, the data table 67 storing (storing) the relationship between the punch size and the opening / closing time is searched, and the opening / closing time corresponding to the determined punch diameter is obtained. Based on the searched opening / closing time, the opening / closing time control unit 69 controls the opening / closing times of the opening / closing valves 17 and 23. The opening / closing time of the on-off valve 23 gradually becomes shorter in response to the large, medium, and small diameters of the punch mold P, and a large amount of the punch mold P belonging to the large diameter is used. A working fluid is supplied, and a small amount of working fluid is supplied to the punch die P belonging to the medium and small diameters corresponding to the punch die P belonging to the medium diameter.
[0055]
In the above configuration, when the punch press 1 operates under the control of the NC device 9 and the appropriate punch die P and die die D are relatively indexed and positioned at the position of the striker 3, this punch die Data of the ID tag 27 provided for P is read by the reader / writer 29 via the antenna coil 31 and input to the valve controller 25. Then, the discriminating means 65 discriminates whether or not the punch die P is a normal punch die and whether the diameter size is large, medium or small when it is an air blow punch.
[0056]
When the punch die P without the ID tag 27 is relatively indexed and positioned to the lower position of the striker 3, the reader / writer 29 cannot read the data. In this case, the data signal is input. It is determined that the punch is a normal punch die. In the case of a punch die having an ID tag, the type of punch die is determined based on the presence / absence of data indicating air blow punch.
[0057]
The data table 67 is searched based on the determination result of the determination means 65, and the opening / closing time suitable for the diameter size of the punch die P located below the striker 3 is obtained.
[0058]
When the punch die P is pressed by the striker 3, the opening / closing time of the opening / closing valve 23 is controlled by the opening / closing time control unit 69 based on the searched opening / closing time, and the amount suitable for the diameter size of the punch die P The working fluid is supplied.
[0059]
That is, when it is determined that the punch die P is an air blow punch, the on-off valve 17 is opened and air from the pressure source 13 is supplied to the fluid supply port 11 having the strike force 3. When air is supplied in this way, a negative pressure is generated in the negative pressure generator 19, and the inside of the oil tank T is pressurized. Therefore, when the opening / closing valve 23 is opened, the oil tank T The oil is sucked and supplied as an oil mist from the fluid supply port 11 to the introduction hole of the punch die P.
[0060]
Therefore, an appropriate amount of oil mist suitable for the diameter size of the punch die P can be supplied without excess or deficiency.
[0061]
By the way, in the above description, it has been explained that the supply amount of the working fluid is controlled by controlling the opening / closing time of the on-off valve 23. However, as indicated by an imaginary line in FIG. It is also possible to connect a plurality of on-off valves 23A and 23B having different pressures in parallel, and to select appropriate on-off valves 23, 23A and 23B corresponding to the large, medium and small diameter sizes of the punch. . In this case, it is also possible to adopt a configuration in which individual selection or a combination of a plurality of on-off valves is selected at the same time. With the two on-off valves, it is possible to cope with large, medium and small punch diameters.
[0062]
In the above description, the case of the diameter size has been described as the data related to the working fluid supply amount. However, the data of the supply amount itself may be stored in the ID tag 27 in advance. Furthermore, as described above, the ID tag 27 reads and writes data such as mold specifications such as air blow punch or standard punch, mold size such as diameter size data, mold type, mold material, and purchase history. By storing and recognizing these data, in addition to the execution of the air blow function described above, it is also possible to perform management of the mold usage frequency, check the match with the program, and determine pass / fail of the mold used.
[0063]
Referring again to FIG. 1, the punch die P includes a cylindrical punch guide 71 supported by the punch holder 5 so as to be movable up and down. An upper portion of the punch guide 71 includes an O-ring or the like. A retainer collar 75 is detachably attached via the elastic member 73.
[0064]
A punch body 77 having a cutting edge portion 77A at the lower end portion is fitted in the punch guide 71 so as to be movable up and down, and the upper end of the punch body 77 penetrating the retainer collar 75 so as to be movable up and down. The part is formed with a male screw part. A ring-shaped punch head 79 is detachably screwed to the male screw portion.
[0065]
A strong elastic member 81 such as a stripper spring is mounted between the punch head 79 and the retainer collar 75. The punch head 79 and the elastic member 81 are surrounded by a cylindrical safety cover 85 having a lower end fixed to the retainer collar 75 by a locking member 83 such as an O-ring. The upward movement of the punch head 79 is restricted by the engagement of the inward protrusion and the outward protrusion provided at the lower portion of the punch head 79. The upward biasing force of the elastic member 81 is received by the retainer collar 75. In order to prevent the punch head 79 from rotating with respect to the safety cover 85, a pin 87 is fixed to the punch head 79 through a vertical slot 85 </ b> S provided in the safety cover 85.
[0066]
In order to introduce the working fluid ejected and supplied from the fluid supply port 11 provided in the striker 3, an introduction hole 89 is provided in the upper end surface of the punch body 77. The introduced working fluid is provided so as to penetrate appropriately so as to guide the working fluid to the outer peripheral surface of the punch body 77 and the vicinity of the lower end portion of the punch body 77.
[0067]
An ID tag 27 constituting the main part of the punch die P according to the embodiment of the present invention is provided on the upper end surface of the punch body 77. In this embodiment, a high-frequency stick-type ID tag 27 is provided in the upper portion of the introduction hole 89, and the ID tag 27 has a configuration in which at least the punch body 77 has the introduction hole 89. Various data as described above are stored, such as data indicating the diameter and data indicating the diameter size of the punch body 77 and the like.
[0068]
The attachment structure of the ID tag 27 will be described. As shown in FIG. 1 and FIG. 4, the ID tag 27 does not obstruct the flow of the working fluid introduced into the introduction hole 89. It is attached in a state where a part thereof is exposed on the surface, and is provided so that the space near the entrance and the top surface of the introduction hole 89 is a magnetic field generation area of the ID tag 27.
[0069]
More specifically, for example, a slit 91 is provided as an opening communicating from the position of the ID tag 27 in the outer peripheral direction of the punch body 77 and the punch head 79, and the depth of the slit 91 is sufficiently larger than the length of the ID tag 27. It is deeply provided.
[0070]
In other words, the upper end side and the lower end side of the ID tag 27 and the three sides on the introduction hole 89 side which is one side of the ID tag 27 are sufficiently opened from the metal portion in the punch die.
[0071]
Accordingly, when the stick tag ID tag 27 corresponding to the high frequency is simply buried in the metal of the punch body 77, it is affected by the surrounding metal, and therefore the data in the ID tag 27 is transferred by the antenna coil 31 described above. Although it is difficult to communicate (read and write), by providing the slit 91 deeper than the length of the ID tag 27 as described above and opening both ends and one side of the ID tag 27, the surrounding metal Thus, the magnetic flux generated as a radio wave signal generated by the antenna coil 31 is sufficiently linked to the antenna coil provided on the ID tag 27 side, and the above-described communication becomes possible. That is, the magnetic flux passes through the slit 91.
[0072]
When attaching the ID tag 27 to the punch die, the ID tag 27 can be directly attached. However, it is desirable that the ID tag 27 is housed or embedded in the resin tag holder 27H. According to this configuration, the ID tag 27 is protected by the tag holder 27H, and an extra open space from the metal can be secured around the ID tag 27 by the amount of the tag holder 27H.
[0073]
Referring to FIG. 5, the attachment structure of another ID tag 27 will be described. The punch die P is provided with a counterbore hole space 93 at substantially the center of the punch body 77. In addition, a rectangular pillar-shaped tag holder 95 made of, for example, a resin such as urethane is accommodated in the space 93, and the ID tag 27 is accommodated and embedded in a hole 97 provided in the approximate center of the tag holder 95. Has been. Further, for example, a slit 91 as an opening communicating from the space 93 to the outer periphery of the punch body 77 and the punch head 79 is provided as in the case of FIG. 4, and the depth of the slit 91 is the ID tag. 27 is provided so as to have a large gap between the two ends.
[0074]
The action and effect of the slit 91 with respect to the ID tag 27 are substantially the same as in the case of FIG. 4 described above. The examples shown in FIGS. 4 and 5 are mainly applied to a small-diameter punch die P (1/2 inch diameter, 1.25 inch diameter).
[0075]
With reference to FIG. 6 and FIG. 7, another attachment structure of the ID tag 27 will be described. On the upper surface of the punch head 79 of the punch die P, there is provided an opening 99 that is open on the upper surface side and communicates with the introduction hole 89. It is provided in the opening 99. The lateral length of the opening 99 is the length of the engagement portion of the ID tag 27 with respect to the opening 99 so that a large gap is generated on the end face 27B of the ID tag 27 opposite to the point portion 27A. Larger than that.
[0076]
That is, in the above configuration, the three sides of the ID tag 27, ie, both end sides and the upper surface side, are largely open without contacting the metal part of the punch die.
[0077]
With the above configuration, when the ID tag 27 is placed sideways and embedded in the upper end surface of the punch head 79 so that a part of the side surface of the ID tag 27 is opened, the ID tag 27 is mounted vertically as shown in FIGS. It has been confirmed that the communication conditions are better than the case.
[0078]
Further, if the length of the opening 99 is equal to the length of the engaging portion of the ID tag 27, the communicable distance is reduced, but a large gap is formed on the end surface 27B of the ID tag 27 on the opposite side to the point portion 27A. Since G is generated, a good communication state can be obtained. The embodiment shown in FIGS. 6 and 7 is mainly applied to a large-diameter punch die P (2 inch diameter, 3.5 inch diameter, 4.5 inch diameter).
[0079]
When attaching the ID tag 27 to the opening 99 provided in the punch head 79, the ID tag 27 can be directly attached. However, it is desirable to attach the tag holder 27H via the tag holder 27H in a state where the ID tag 27 is embedded.
[0080]
In the punch die P as shown in FIGS. 4 to 7 above, the striker 3 of the turret punch press is located at the raised position (top dead center), the lower end surface of the striker 3 and the punch head of the punch die P. Communication is possible even if a large gap of, for example, 6 to 7 mm occurs between them. In addition, if the striker 3 descends and the above interval becomes even closer, communication becomes easier. Therefore, after the punch dies P are mounted on the turret, the selection operation is performed without actually punching the punch dies P, and the punch dies P are positioned under the striker 3. Data communication is now possible.
[0081]
Referring to FIG. 9, the striker 3 provided in the punch press according to this embodiment selectively selects any punch die P of a plurality of tracks inside and outside the rotatable upper and lower turrets 101 and 103. The striker drive ram 107 is drivingly connected via a lateral slide device 105 so that the pressure can be applied. The striker drive ram 107 is configured to be driven via a crank rod 115 to a crankshaft 113 connected to, for example, a rotary drive shaft 111 of a motor 109 as an actuator for driving up and down. A clutch / brake 117 is provided between the motor 109 and the motor 109 to turn on / off the transmission of rotational driving. The ON / OFF operation of the clutch / brake 117 is controlled by the NC device 9. That is, when the ON signal of the clutch / brake 117 is commanded in the NC device 9, the striker 3 is lowered, or when the OFF signal of the clutch / brake 117 is commanded, the striker 3 is at the stop position, and the striker 3 Data can be reliably read at the top dead center position or at a position where it is lowered and stopped appropriately.
[0082]
In addition, when the striker 3 is lowered and stopped appropriately, when the data of the ID tag 27 cannot be read when the striker 3 is located at the top dead center position for some reason, As a precaution, data is read as appropriate to read data.
[0083]
Further, the lateral slide device 105 is horizontally moved in the left-right direction (radial direction passing through the center of the turret) in FIG. 9 to the slide base 119 fixed to the lower end portion of the striker driving ram 107. For example, a select hydraulic cylinder device 123 serving as an actuator for moving the striker holder 121 to the left and right in FIG. And is composed of.
[0084]
In the above-described select fluid pressure cylinder device 123, the stroke position of the piston rod is detected by a sensor such as a limit switch, and this detection signal is input to the NC device 9 so that the desired position provided on the inner and outer tracks is provided. It is possible to detect that the striker 3 has been positioned corresponding to the punch die P.
[0085]
Further, the upper and lower turrets 101 and 103 are pivotally positioned to position the desired punch die P and die die D below the striker 3. As described above, shot pins (not shown) are detachably provided in positioning holes (not shown) provided in the upper and lower turrets 101 and 103. Note that punch and die positioning sensors 125 and 127 for detecting the insertion and removal of the shot pin are provided and connected to the NC device 9.
[0086]
Referring to FIG. 10, the control timing at which communication is performed in the actual operation of the turret punch press using the striker 3 in which the antenna coil 31 of this embodiment is embedded and the punch die P in which the ID tag 27 is embedded. explain.
[0087]
When the striker 3 is slidable in the horizontal direction by the lateral slide device 105, the fact that the striker 3 has moved to the position above the punch head 79 of the punch die P on the desired track is indicated by the piston rod of the select fluid pressure cylinder device 123. On the other hand, the positioning of the upper and lower turrets 101 and 103 in the rotational direction is monitored by the punch and die positioning sensors 125 and 127, thereby monitoring the mold change (step S1).
[0088]
The mold change is executed, and the punch mold P and the die mold D are relatively moved to the lower position of the striker 3 by the rotation of the upper and lower turrets 101 and 103 (step S2).
[0089]
A transmission command for reading the data of the ID tag 27 is set in the NC device 9 when the above die change is executed, and the determination means 65 of the valve control device 25 is reset to clear the received data (step) S3 and S4).
[0090]
The punch mold P is triggered by both signals of the punch mold positioning by the punch and die positioning sensors 125 and 127 and the completion of positioning of the striker 3 with respect to the punch mold by detecting the movement of the piston rod of the select fluid pressure cylinder device 123. As soon as positioning to the lower position of 3 is completed, a command is transmitted to the reader / writer 29. Accordingly, unnecessary data and unnecessary data are not read, and the accuracy of the data is improved.
[0091]
This command transmission can be performed even when the punching operation is started or when the clutch / brake 117 is turned off. The data can be read / written again (steps S5 and S6).
[0092]
The data stored in the ID tag 27 is read by the reader / writer 29 and input to the valve controller 25. The diameter size, type, material, specifications, etc. of the punch body 77 are immediately determined (steps S7 and S8). Based on this data processing, an amount of working fluid suitable for the diameter size is supplied and introduced into the introduction hole 89. Further, the management of the number of hits of the punch die P and the operation of displaying the die are started, and the management (counting) of the number of hits is repeated (steps S9 and S10).
[0093]
【The invention's effect】
As can be understood from the description of the embodiments of the invention as described above, according to the present invention, the antenna coil in the reader / writer is mounted in the striker of the punch press in a state where the influence of the surrounding metal is reduced. Even if the striker is located at the top dead center and is far away from the punch mold, the ID tag data provided in the punch mold can be read / written, and the striker can be Since there is no need to descend, efficiency can be improved. In addition, various controls based on the data of the ID tag can be performed, and the conventional problems as described above can be solved.
[Brief description of the drawings]
FIG. 1 is a cross-sectional explanatory view of a striker and a punch mold according to an embodiment of the present invention.
FIG. 2 is a cross-sectional explanatory view of a jig for mounting an antenna coil to a striker according to an embodiment of the present invention.
FIG. 3 is a cross-sectional explanatory view of a striker according to another embodiment of the present invention.
FIG. 4 is an explanatory plan view of a punch die according to an embodiment of the present invention.
FIG. 5 is an explanatory plan view of a punch die according to another embodiment of the present invention.
FIG. 6 is an explanatory plan view of a punch die according to another embodiment of the present invention.
7 is a cross-sectional explanatory view taken along line VII-VII in FIG.
FIG. 8 is a conceptual explanatory view showing a conceptual configuration of a punch press according to an embodiment of the present invention.
FIG. 9 is a conceptual explanatory view showing another conceptual configuration of the punch press control device according to the embodiment of the present invention;
FIG. 10 is a process explanatory diagram illustrating control timing of communication between the antenna and the ID tag in the punch press according to the embodiment of the present invention.
[Explanation of symbols]
1 Punch press
3 striker
9 NC equipment
11 Fluid supply port
13 Pressure source
15 Connection circuit
17, 23 On-off valve
25 Valve control device
27 ID tag
27A point section
29 Reader / Writer
31 Antenna coil
33 Insertion hole
35 Large diameter hole
37 Stepped part (locking part for retaining)
39 Magnetic material
43 Resin (insulator; for mold)
45 Large diameter part (engagement part)
47 Jig for centering
49 Shaft for positioning
51 butt reference plane
57 Introduction
63 Magnetic case (cylindrical shape)
65 discrimination means
71 Punch Guide
77 Punch Body
79 Punch Head
89 Introduction hole
91 slit (opening)
93 Space
95 Tag holder
99 opening
101 Upper turret
103 Lower turret
105 Horizontal slide device
109 Motor (actuator)
113 Crankshaft
117 Clutch / Brake
123 Select hydraulic cylinder device (actuator)
125 Punch positioning sensor
127 Die positioning sensor
P punch mold
D die mold
G gap

Claims (10)

  A punch holder (5) supporting a punch die (P), a die holder (7) supporting a die die (D), and a vertically movable striker (3) capable of striking the punch die (P). ), And the antenna coil (31) of the reader / writer (29) for reading and writing data of the ID tag (27) provided on the upper part of the punch die (P) is connected to the striker ( 3) In the punch press provided in 3), the antenna coil is provided by an insulator (43) provided around the antenna coil (31) disposed in an insertion hole (33) formed on the lower end surface side of the striker (3). (31) is provided so as to be insulated from the striker (3), and an engaging portion that can be locked to a retaining portion (37) for retaining the stopper formed in the insertion hole (33) is provided on the insulator (43). What to prepare for Punch press, characterized.   2. The punch press according to claim 1, wherein the locking portion is formed by a stepped portion between the large diameter portion (35) provided at the upper portion of the insertion hole (33) and the insertion hole (33). A punch press characterized by that.   3. The punch press according to claim 1, wherein a cylindrical magnetic body (39) having substantially the same length as the antenna coil (31) or longer than the antenna coil (31) is provided inside the antenna coil (31). A punch press characterized by that.   The punch press according to claim 1, 2, or 3, wherein the antenna coil (31) is substantially the same length or antenna coil (31) between the outer peripheral surface of the antenna coil (31) and the insulator (43). A punch press comprising a longer cylindrical magnetic case (63).   5. The punch press according to claim 4, wherein an inner flange portion (61) that covers a lower end surface of the antenna coil (31) is provided at a lower end portion of the magnetic case (63).   The punch press according to any one of claims 1 to 5, further comprising a resin pipe (41) in communication with a fluid supply port (11) provided in the striker (3) inside the antenna coil (31). A punch press characterized by   The antenna coil (31) of the reader / writer (29) for reading and writing data of the ID tag (27) provided on the upper part of the punch die (P) is used as the striker (3) in the punch press. In the mounting method, after positioning the antenna coil (31) in the insertion hole (33) formed on the lower end surface side of the striker (3), resin is molded into the insertion hole (33), and the striker ( 3. A mounting method for mounting an antenna coil on a striker in a punch press, wherein the striker (3) and the antenna coil (31) are integrated in a state where the antenna coil (31) is insulated from 3).   The mounting method according to claim 7, wherein a large-diameter hole (35) having a diameter larger than that of the insertion hole (33) is formed in an upper portion of the insertion hole (33), and the insertion hole (33) and the large-diameter hole ( 35) A mounting method for mounting an antenna coil on a striker in a punch press, wherein the resin is molded over the area.   The mounting method according to claim 7 or 8, wherein a cylindrical magnetic body (39) having the same length as the antenna coil (31) or longer than the antenna coil (31) is disposed in the antenna coil (31). A mounting method for mounting an antenna coil on a striker in a punch press, wherein the antenna coil (31) and the magnetic body (39) are integrated with the striker (3) by a resin.   The mounting method according to claim 7, 8 or 9, wherein the antenna coil (31) and the insertion hole (33) are provided using a jig for centering the antenna coil (31) and the insertion hole (33). And mounting the antenna coil on a striker in a punch press, wherein the centering state is maintained and resin is molded into the insertion hole (33).

Images