JP2002153926A - Punch press, and machining method for punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a machining method for punch press by which complicated height adjustment can be eliminated. SOLUTION: When a work is pressed through cooperation of a punch with a die by controlling a punch moving mechanism 39 and/or a die moving mechanism 93 of the punch press by a control device 31 to relatively advancing/ retracting a punch and a die to/from each other, the punch height and/or the die height is measured by a die height measuring unit 27, and the measurement data is automatically stored in a storage medium 149. An operation unit 151 calculates the movement by the punch moving mechanism 39 and/or the die moving mechanism 93 based on the punch height and the die height stored in the storage medium 149, and a movement control part 153 controls the punch moving mechanism 39 and/or the die moving mechanism 93 based on the calculated result to perform the punching.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch press using measurement results of a punch height and a die height, and a processing method in the punch press.

[0002]

2. Description of the Related Art A punch press performs a punching process and a forming process by cooperating while sandwiching a material between a punch and a die. In the case of punching, when the punch edge is inserted beyond the edge of the die, the material breaks after shearing, and processing is performed.

[0003] In such a punch press, when the punch is on the upper part and there is a punch, material, and die in the vertical direction, the lower surface of the material and the upper surface of the die are on the processing pass line, and the lower surface of the punch is more than the upper surface of the material. Start processing from the state where it is located above. Immediately after processing, the lower surface of the punch is located below the upper surface of the die.

[0004] Shim adjustment and the like are mechanically performed for the die when the machine is mounted, and the following three methods are available for the punch. The first one is to perform mechanical shim adjustment like a die. Second, a ram axis control parameter for operating the punch has a punch height, and an actual measured value is input to the punch height to control the ram axis operation distance. 3
Third, the mold itself is adjusted by having a length adjustment mechanism.

[0005]

However, in the above-described technology, some dies have a height as a parameter, but the height is not controlled, and the height adjustment of the die is substantially performed by shim adjustment. This is a general problem, and there is a problem that the setup is complicated.

[0006] In general, a punch is physically adjusted in height, and the height is measured with a caliper or the like in the same manner as a die.
Since it is common to input parameters or adjust shims based on the values, there is a problem that the setup is complicated.

An object of the present invention has been made in view of the above-mentioned problems of the prior art, and provides a punch press for avoiding complicated height adjustment and a processing method in the punch press. It is in.

[0008]

In order to achieve the above object, in a punch press according to the present invention, a control device controls a punch moving mechanism and / or a die moving mechanism to move a punch and a die closer to each other. In a punch press in which a workpiece is pressed by cooperation between a punch and a die, a die height measuring device for measuring the height of the punch and / or the die, and measurement data from the die height measuring device. A storage medium that receives and automatically stores the data; a calculation unit that calculates the amount of punch and / or die movement based on punch height and / or die height data stored in the storage medium; A movement control unit for controlling the punch moving mechanism and / or the die moving mechanism based on the result. A.

Therefore, the control device controls the punch moving mechanism and / or the die moving mechanism of the punch press to relatively move the punch and the die toward and away from each other, and presses the work by the cooperation of the punch and the die. At this time, the punch height and / or the die height are measured by the mold height measuring device, and the measured data is automatically stored in the storage medium.
Then, the arithmetic unit calculates the amount of movement by the punch moving mechanism and / or the die moving mechanism based on the punch height and the die height stored in the storage medium, and based on the calculation result, the movement control unit causes the punch moving mechanism and / or Alternatively, punching is performed by controlling the die moving mechanism.

In the punch press according to the second aspect of the present invention, the control device controls the punch moving mechanism and / or the die moving mechanism to move the punch and the die toward and away from each other, and press-work the work by the cooperation of the punch and the die. A die accommodating device accommodating a plurality of punches and dies, a die exchanging device for taking out desired punches and dies from the die accommodating device, transferring the punches and dies to the punch press, and exchanging; A die height measuring device for measuring the height of the punch and / or die during the transfer of the punch and the die taken out of the die storage device by the die changing device to the punch press and exchanging the die and the die; A storage medium for automatically storing measurement data received from the apparatus, and a punch height and a storage height stored in the storage medium. And / or a calculation unit for calculating the amount of movement of the punch and / or die based on the data of the die height, and a movement control unit for controlling the punch movement mechanism and / or the die movement mechanism based on the calculation result by the calculation unit; It is characterized by comprising.

Accordingly, the control device controls the punch moving mechanism and / or the die moving mechanism of the punch press to relatively move the punch and the die toward and away from each other, and presses the work by the cooperation of the punch and the die. At this time, the desired punch and die are taken out from the mold storage device, provided in the middle of the transfer to the punch press by the mold exchanging device and exchanged, the punch height and / or the die height are measured by the mold height measuring device, The measurement data is automatically stored in a storage medium. Then, based on the punch height and the die height stored in the storage medium, the calculation unit calculates a moving amount by the punch moving mechanism and / or the die moving mechanism,
The movement control unit controls the punch moving mechanism and / or the die moving mechanism based on the calculation result to perform punching.

According to a third aspect of the present invention, in the punch press according to the first aspect, the die height measuring device is provided at a die setup position for setting up a punch and a die to be used next in the punch press. Is characterized in that:

Therefore, when a die to be used next in the punch press is prepared in the setting device, the punch height and the die height are measured by the die height measuring device provided at the die setting position.

According to a fourth aspect of the present invention, in the punch press according to the first aspect, the storage medium is:
It is provided in the control device.

Therefore, the punch height and die height data measured by the mold height measuring device are automatically stored in a storage medium provided inside the control device.

According to a fifth aspect of the present invention, there is provided a working method in a punch press, wherein a punch and a die mounted on a punch press are moved toward and away from each other under the control of a control device, and press working is performed on a work by cooperation of the punch and the die. In the working method of the punch press to be performed, the punch height and / or
Alternatively, a punch height and / or a punch height may be determined beforehand by a die height measuring device for measuring a die height.
Or, when performing a punching process under the control of the control device by measuring the die height, the punch and / or die movement control is performed based on the punch height and / or die height data measured by the mold height measuring device. Performing the operation.

Accordingly, the punch and the die mounted on the punch press are relatively moved toward and away from each other under the control of the control device. The punch and die to be used are carried into a mold height measuring device, and the punch height and the die height are measured. Then, in the punching process, the control device controls the movement of the punch and / or the die based on the data of the punch height and the die height measured earlier.

According to a sixth aspect of the present invention, there is provided the punch press working method according to the fifth aspect of the present invention, wherein the die height measuring device sets up a die to be used next in the punch press. The punch height and / or the die height are measured at a setup position, and the die height measuring device provided at the mold setup position measures the punch height and / or the die height.

Therefore, when the die to be used next in the punch press is prepared at the die setup position and transferred to the die changing device, the punch height and / or the die height are measured by the die height measuring device. Done.

[0020]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIGS. 1 and 2 show a punch press 1 according to the present invention. In this punch press 1,
A gap G is provided between the upper frame 5 and the lower frame 7 at the center of the gate-shaped frame 3.
At a processing position K in the gap G, a punch P is supported by the upper frame 5 so as to be vertically movable, and a die D
Are supported by the lower frame 7 so as to be vertically movable.

On the other hand, the gap G is provided with a work movement positioning device 9 for supporting and positioning the work W to be machined. In this work movement positioning device 9,
A carriage base 15 is provided at the right end in FIG. 1 of the processing table 11 so that the processing table 11 moves along a pair of guide rails 13 provided in the Y-axis direction (left-right direction in FIG. 1). The carriage base 15 is movable and positionable in the Y-axis direction. The carriage base 15 has a plurality of work clampers 17 for gripping the work W, and has an X-axis carriage 19 which can be moved and positioned in the X-axis direction (vertical direction in FIG. 2).

With the above configuration, the work W is gripped by the work clamper 17, the X-axis carriage 19 is moved in the X-axis direction, and the carriage base 15 is moved in the Y-axis direction, thereby positioning the work W at the processing position K. I do. Then, the punch P is pressed by the driving device, and the work W is punched by the cooperation of the punch P and the die D.

On the other hand, on the left side of the punch press 1 in FIG. 1, a mold storage device 21 for storing a large number of punches P and dies D is provided. A mold setup station 23 is provided in the vicinity of the mold storage device 21 as a mold setup position for performing mold setup, and moves between the mold storage device 21 and the mold setup station 23. A free automatic mold setup device 25 is also provided. The mold setup station 25 has a mold height measuring device 27 for measuring the height of the punch P and the die D.
Is provided.

A used die is carried out of the punch press 1 between the die storage device 21 and a die replacement preparation position A provided near the processing position K in the punch press 1 and the die. A mold exchanging device 29 is provided for accommodating a new mold to be stored in the storage device 21 or to be used next to the punch press 1. Further, on the right side of the punch press 1, a control device 31 for controlling the punch press 1 is provided.

FIGS. 3 and 4 show a punch support 33 for supporting the punch P and a die support 3 for supporting the die D.
5 is shown.

Referring to FIG. 3, the cylindrical support body 37 having the step of the punch support portion 33 is provided with an upper frame 5.
A ram cylinder 39 is provided in a central space of the support body 37, and an index gear 43 is provided at an upper end of an upper piston rod 41U extending upward.
Is provided.

The index gear 43 is connected to the upper piston rod 41U by a spline portion 45 so as to rotate integrally with the upper piston rod 41U and to be relatively movable up and down. The gear (not shown) is driven by an index motor (not shown). ) To rotate the punch P.

Referring also to FIG. 4, the ram cylinder 3
A press ram portion 47 is provided at the lower end of the lower piston rod 41L, which is the lower portion of the piston rod 41 of No. 9, and can be positioned at the machining height position and the mold exchange height position by the action of the ram cylinder 39. I have. A lock mechanism 49 for holding and locking the punch P is provided inside the press ram portion 47.

The lock mechanism 49 has a lock outer cylinder 51,
The lock outer cylinder 51 is provided inside the press ram portion 47, and a space inside the lock outer cylinder 51 is provided with a partition 55 having a seal 53, and is divided into an upper space 57 and a lower space 59. A lock cylinder 61 is provided in the upper space 57, and a piston rod 63 of the lock cylinder 61 passes through the partition 55 and
9, a lower end of the piston rod 63 in the lower space 59 is provided with a plate 65 and a plurality of lock claws 6.
7 (collet chuck) is provided to be freely opened and closed.

A spherical portion 6 is provided at the tip of the lock claw 67.
9 is provided, and a lower space 59 in which the lock claw 67 moves up and down has a lock outer cylinder 51 so that a lower end portion is widened.
A step 71 is provided on the inner side of the lower part of.

Therefore, the upper chamber 61 of the locking cylinder 61
When the pressurized oil is supplied to U and lowered, the spherical portion 69 of the lock claw 67 moves below the step 71, so that the lock claw 67 is opened and unlocked. On the other hand, the lower chamber 6 of the locking cylinder 61
When pressurized oil is supplied to 1 L and raised, the spherical portion 69 of the lock claw 67 is raised and moved inward by the step 71, so that the lock claw 67 is closed to be in a locked state (shown in FIG. 4). State).

A work holding support block 73 for holding the work W during machining is provided below the support body 37 so as to be vertically movable by an air cylinder (not shown). A pair of punch holding claws 75 for holding the punch P is provided at the lower end of the work holding support block 73 so as to engage with the mounting groove 77 of the work holding 76 to hold the punch P. It has become.

4, the pull stud 78 of the punch P clamped by the lock mechanism 49 when the punch P is replaced in FIG.
A notch C is provided as shown by a two-dot chain line to avoid interference with

On the other hand, referring to FIG.
Here, cylindrical upper and lower support bodies 79U and 79L are integrally connected by bolts 81 and fixed to the lower frame 7.

A screw portion 8 is provided on the inner peripheral surface of the lower support body 79L.
The lifting member 8 is screwed into the screw portion 83 and is vertically movable with respect to the lower support body 79L.
5 are provided. At the lower end of the elevating member 85,
The elevating gear 89 is connected to the elevating member 8 via the spline portion 87.
The lifting gear 89 is rotatable at a fixed position. The elevating gear 89 is rotated by an elevating motor 93 via a gear 91 and the like.

Therefore, when the elevating motor 93 rotates the elevating gear 89 via the gear 91 and the like, the elevating member 85 moves up and down along the lower support body 79L by the action of the screw portion 83, and the material is used during machining. The upper surface of the die D is positioned at the processing height position where the upper surface of the die D is located at the pass line (the state shown in FIG. 4) or at the exchange height position for exchanging the die D.

Referring also to FIG. 4, on the upper side of the elevating member 85, there is provided a support base 95 as a lower main shaft which can move up and down along the inner peripheral surface of the upper support body 79U.
The processing height position and the mold exchange height position can be selectively positioned. A forming cylinder 97 as a fluid pressure cylinder is provided at the upper end of the support base 95. A hollow space 101 is vertically provided at the center of the piston rod member 99 of the molding cylinder 97.
The scraps generated during punching can be dropped and discharged.

The index gear 1 is connected to the upper outer peripheral surface of the piston rod member 99 via a spline portion 103.
05 is provided so as to be vertically movable relative to the piston rod member 99 and to rotate integrally therewith, and is rotated at a fixed position by the index motor 107.

A die support block 109 as a mold mounting portion is provided above the index gear 105. The die support block 109 penetrates the index gear 105, and the pin 113 is always held by a spring 111. Although it is urged downward, the screw portion 113U at the upper end of the pin 113 is screwed into the index gear 1
05 so as to rotate integrally therewith (see FIG. 4).

Accordingly, when the support base 95 is lowered, the index gear 105 is also lowered integrally.
3 also descends, but the lower end of the pin 113 is
Since it cannot contact the upper end surface of 9U and can go down further, it is relatively pushed up. The pin 113 pushes up the die support block 109 relatively, so that the lower surface of the die holder 117 (see FIG. 4) is separated from the upper end surface of the piston rod member 99 to be in an unlocked state.

Referring to FIG. 4, the die support block 109 is provided with a pair of die holding claws 119 as left and right (left and right in FIG. 4) locking members for holding the die D. The die D is held by engaging with a die mounting groove 121 provided in the die 117.

Accordingly, in the unlocked state where the support base 95 is lowered, the indexing motor 105 is rotated by the indexing motor 107 to thereby rotate the die holding claw 1.
19 also rotates integrally, so that the rotation of the die D held by the die holding claws 119 can be indexed. Then, the support base 95 is raised, and the upper end surface of the support base 95 is pressed against the lower surface of the die holder 117 to be in a locked state (see FIG. 4).

FIGS. 5A and 5B show an example of the mold height measuring device 27. FIG. The mold height measuring device 27 is provided in the mold setup station 23 (see FIG. 2).

The mold height measuring device 27 includes a mold supporting arm 123 having a tip forked to support the punch P or the die D, and a lower detector 125 to be brought into contact with the bottom surface of the punch P or the die D. , An upper detector 127 to be brought into contact with the upper end surface of the punch P or the die D.

The lower detector 125 is connected to one side (FIG. 5A)
The right end (in (B)) is attached to the upper end (end) of a vertically movable lower arm 129 that is bent upward. The upper detector 127 is bent upward of the lower arm 129. It is attached to the lower end (tip) of the upper arm whose tip is bent downward corresponding to the position.

The lower arm 129 and the upper arm 131
Are vertically movably supported by sliders 135 and 137 which are vertically movably supported by guide posts 133 erected vertically, and have the other end (FIG. 5).
Sensors 139 and 141 for measuring the interval between both end portions are attached to (the left end portions in (A) and (B)). The sensors 139 and 141 include, for example, one sensor 139 has a light emitting unit that emits a laser beam LB and a light receiving unit that receives the reflected laser beam LB, and the other sensor 141 may be a reflecting plate, or One sensor 1
39 may have a light emitting unit, and the other sensor 141 may have a light receiving unit. The lower arm 129 and the upper arm 131 can use various well-known vertical mechanisms.

Therefore, for example, the mold setup station 2
In the case of measuring the punch height PH of the punch P prepared in No. 3 as shown in FIG.
The punch P is supported by engaging the mold support arm 123 with the punch mounting groove 77, and the lower detector 125 contacts the lower surface of the punch P, and the upper detector 127 contacts the upper end surface of the punch P. At least, measure the punch height PH.

When the die height DH is measured as shown in FIG. 5B, the metal is inserted into the die mounting groove 121 of the die D in the same manner as in the case of measuring the punch height PH described above. The die support arm 123 is engaged and the die D
And the lower detector 125 is brought into contact with the lower surface of the die D and the upper detector 127 is brought into contact with the upper end surface of the die D, and the die height DH is measured.

It should be noted that the apparatus for measuring the punch height PH and the apparatus for measuring the die height DH can use a common device, but a dedicated mold height measuring device may be provided for each. Also, the mold support arm 123
A punch P having no punch mounting groove 77 or a die D having no die mounting groove 121 is provided with a clamper for gripping the punch P or the die D at the front end of the punch D.
Height measurement can also be performed.

FIG. 6 shows the configuration of the control device 31. In the control device 31, the central processing unit CP
Input means 1 for inputting various data to U143
Output means 147 for outputting various data;
Is connected. A die height memory 149 as a storage medium is connected to the CPU 143, and the punch height P measured by the die height measuring device 27 is measured.
H and die height DH are input and the mold height memory 14
9 is stored.

An arithmetic unit 151 is connected to the CPU 143. Based on the data of the punch height PH and the die height DH stored in the die height memory 149, the CPU 143 determines the amount of axial movement of the punch P and the die D during processing. calculate.
Further, a movement control unit 153 for controlling the ram cylinder 39 serving as a punch moving mechanism and the elevating motor 93 serving as a die moving mechanism based on the axial movement amount is provided.

FIG. 7 shows a working method in the punch press according to the present invention. That is, when the processing is started (step S1), the punch height PH and the die height DH prepared in the mold setup station 23 are measured using the mold height measuring device 27 as described above (step S2), and are measured. The punch height PH and the die height DH are automatically stored in the mold height memory 149 (step S3). After that, the punch P and the die D are transferred to the mold changing device 29, and are conveyed to the punch press 1 and mounted.

The operation section 151 is provided with a mold height memory 149.
The amount of axial movement of the punch P or the die D for performing a predetermined process is calculated based on the height information stored in the ram cylinder 39 and the lifting / lowering motor 9.
3 to control the axial movement of the die D and the punch P
Processing is performed by controlling the position of the lower surface (step S4, see FIG. 8), and the processing is terminated (step S5).

From the above results, desired machining can be performed without performing complicated mold height adjustment by height measurement, height adjustment, parameter input, and the like, and work efficiency can be improved. At the same time, the processing accuracy can be improved.

In addition, punch height PH and die height DH
It is possible to reduce troublesome operations in the measurement work and the measurement result input work, and to prevent a work error accompanying the work.

Also, when the workpiece moves in the X and Y axes, the die D
By controlling so as to lower, it is possible to prevent the lower surface of the work from being scratched.

Note that, in the above-described embodiment, FIG.
Mold height measuring device 2 exemplified in (A) and (B)
7, the punch height PH and the die height DH are measured. Alternatively, the height may be measured by the following method.

Method of performing measurement by operating a ram cylinder 39 for raising and lowering a punch and a lifting / lowering motor 93 for raising and lowering a die When a die is mounted, a dedicated measuring device is used to move the shaft to contact the die with the detector. Method for measuring from changes in pressure, current, etc. Method for measuring using a three-dimensional measuring device, two-dimensional measuring device, etc. A method using an electronic caliper or other manual measuring device that can transmit measurement data to a storage medium.

The height measurement of the mold can be performed at the time of mold setup as described above, but can also be performed at the time of mold maintenance and the measurement data can be transmitted to the control device via a network. . In this case, the mold height measuring device can be provided separately from the punch press.

When the mold is used by a plurality of machines, the measurement data of the mold height is provided outside the control device 31 of the punch press 1 and is connected to the control device 31 when processing is performed by the punch press 1. It is also possible to do so.

[0062]

As described above, in the punch press according to the first aspect of the present invention, the control device controls the punch moving mechanism and / or the die moving mechanism of the punch press to relatively move the punch and the die toward and away from each other. At the same time, when performing press working on a work in cooperation with a punch and a die, the punch height and / or die height is measured by a mold height measuring device, and the measurement data is automatically stored in a storage medium. It is possible to reduce troublesome operations in the measurement work of the die height and the die height, and in the work of inputting the measurement result, and to prevent a work error accompanying the work. And
The operation unit calculates the amount of movement by the punch moving mechanism and / or the die moving mechanism based on the punch height and the die height stored in the storage medium, and based on the calculation result, the movement control unit causes the punch moving mechanism and / or the die to move. Since punching processing is performed by controlling the moving mechanism, desired processing can be performed without performing complicated mold height adjustment, thereby improving work efficiency and improving processing accuracy. be able to.

In the punch press according to the second aspect of the present invention,
The controller controls the punch moving mechanism and / or the die moving mechanism of the punch press to relatively move the punch and the die toward and away from each other. While taking out the desired punch and die from the storage device, transferring them to the punch press by the die changing device and replacing them, the die height measuring device measures the punch height and / or die height and automatically stores the measurement data. Since the data is stored in the medium, complicated operations in the work of measuring the punch height and the die height and the work of inputting the measurement result can be reduced, and the work error accompanying the work can be prevented. Then, the arithmetic unit calculates the amount of movement by the punch moving mechanism and / or the die moving mechanism based on the punch height and the die height stored in the storage medium, and based on the calculation result, the movement control unit causes the punch moving mechanism and / or Alternatively, since punching is performed by controlling the die moving mechanism, desired processing can be performed without performing complicated mold height adjustment, thereby increasing work efficiency and improving processing accuracy. Can be achieved.

In the punch press according to the third aspect of the present invention,
When preparing the die to be used next in the punch press in the setup device, the punch height and the die height are measured by the die height measurement device provided at the die setup position, so that the punch press and the processing in parallel Can be performed, and the work efficiency can be improved.

In the punch press according to the fourth aspect of the present invention,
The punch height and die height data measured by the mold height measuring device are automatically stored in the storage medium provided inside the control device, so when processing with a punch press without separately providing another storage medium. Can be used directly.

According to the working method of the punch press according to the fifth aspect of the present invention, the punch and the die mounted on the punch press are relatively moved toward and away from each other under the control of the control device, and the work is performed by the cooperation of the punch and the die. When performing a punching process, a punch and a die used in a punch press are carried in advance to a die height measuring device to measure the punch height and the die height. In the punching process, the control device controls the movement of the punch and / or the die based on the previously measured data of the punch height and the die height, so that the control can be performed without performing complicated mold height adjustment. , The working efficiency can be improved, and the processing accuracy can be improved.

In the punch press working method according to the sixth aspect of the present invention, when the die to be used next in the punch press is prepared at the die setup position and transferred to the die changing device, the die height is measured. Since the punch height and / or die height is measured by the device, the measurement can be performed in parallel with the processing by the punch press, and the work efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is a front view showing an entire punch press according to the present invention.

FIG. 2 is a plan view seen from a direction II in FIG.

FIG. 3 is a cross-sectional view showing a vertical mechanism of a punch and a vertical mechanism of a die.

FIG. 4 is a cross-sectional view showing a punch support and a die support.

5A is an explanatory diagram showing a die height measuring device for measuring punch height, and FIG. 5B is an explanatory diagram showing a die height measuring device for measuring die height.

FIG. 6 is a block diagram illustrating a configuration of a control device.

FIG. 7 is a flowchart showing a processing method in a punch press according to the present invention.

FIG. 8 is an explanatory diagram showing an example of a moving state during processing of a punch and a die.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Punch press 23 Die setup station (die setup position) 27 Die height measuring device 29 Die exchange device 31 Controller 149 Die height memory (storage medium) P punch D Die W Work

Claims (6)

[Claims] In a punch press, a controller controls a punch moving mechanism and / or a die moving mechanism to move a punch and a die toward and away from each other, and press-work a work by cooperation of the punch and the die. And / or a die height measuring device for measuring the height of the die, a storage medium for automatically storing measurement data from the die height measuring device, and a punch height and / or Alternatively, an operation unit that calculates the amount of movement of the punch and / or the die based on the data of the die height, and a movement control unit that controls the punch movement mechanism and / or the die movement mechanism based on the calculation result of the operation unit. A punch press, comprising: 2. A punch press wherein a control device controls a punch moving mechanism and / or a die moving mechanism to move a punch and a die toward and away from each other, and press-work a work by cooperation of the punch and the die. And a die accommodating device for accommodating a plurality of dies, a die exchanging device for taking out desired punches and dies from the die accommodating device, transferring the punches and dies to the punch press, and exchanging the die. Provided in the middle of transferring the punch and die taken out of the device to the punch press and exchanging,
A mold height measuring device for measuring the height of the punch and / or die, a storage medium for automatically storing measurement data from the mold height measuring device, and a punch height stored in the storage medium And / or a calculation unit that calculates the amount of movement of the punch and / or die based on die height data, and a movement control unit that controls the punch movement mechanism and / or the die movement mechanism based on the calculation result of the calculation unit. And a punch press. 3. The punch press according to claim 1, wherein the die height measuring device is provided at a die setup position for setting up a punch and a die to be used next in the punch press. 4. The punch press according to claim 1, wherein the storage medium is provided in the control device. 5. A punch press method in which a punch and a die mounted on a punch press are moved toward and away from each other under the control of a control device, and a work is performed on a work by cooperation of the punch and the die. /
Alternatively, a punch height and / or a punch height may be determined beforehand by a die height measuring device for measuring a die height.
Or, when performing a punching process under the control of the control device by measuring the die height, the punch and / or die movement control is performed based on the punch height and / or die height data measured by the mold height measuring device. Performing a punching method. 6. A die height measuring device is prepared at a die setting position for setting up a die to be subsequently used in a punch press, and the punch height is measured by the die height measuring device prepared at the die setting position. The method according to claim 5, wherein the die height is measured.