JPH10230328A - Method and device for controlling punch press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restart the working of a discontinued product, making good use of the working materials of the discontinued product, in a short time and smoothly by storing the coordinates position of a machine and the frequency of punching when an NC program is discontinued in the middle or working. SOLUTION: When a restart button is turned OFF in the middle of programing by an operator, the machine lock state of a CNC8 is released and a state in which the press part moving command of a press controller 4 is not sent, is released by the controller of the punch press. At this point of time, the positions of table shaft and the rotary shaft of a die, are reset to a state in which a punching movement just before a discontinuing at the time of the working of the product has been completed. Simultaneously with that, the processing state of the controller has been reset to a state in which the punching movement just before discontinuing has been completed. When a start switch is depressed by the operator, the NC program is continued by the controller from a next block to which the punching movement just before discontinuing in a previous actual working has been completed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control method and a control apparatus for a punch press machine, and more particularly to a technique for returning to a state immediately before the interruption when an abnormality occurs during the processing of a product and restarting the processing. Things.

[0002]

2. Description of the Related Art Conventionally, when a product is processed using an NC program in a punch press machine, one of the following methods is employed. (A) By storing all of the product processing NC programs created in advance using an automatic programming device or the like in a memory in a control device of a punch press machine, and sequentially processing the NC programs in the memory, A method of controlling a moving table for positioning a work and a press unit having a punch and a die for punching the work (generally referred to as “memory operation”). (B) After storing a part of the product processing NC program in the memory of the punch press machine, the moving table and the press unit are controlled, the NC program of the controlled part is erased from the memory, and the next NC program is again executed. Method of processing a product while storing a part of the data in a memory (generally called "tape operation"). Among these methods, the tape operation has an advantage that it can be operated with a smaller memory capacity than the memory operation.

[0003] When an abnormality occurs during the processing of the product machining NC program as described above and it becomes impossible to continue the NC program, the operator takes one of the following measures. I was The work that has been processed halfway is discarded, replaced with a new work, and the processing is restarted from the beginning of the product processing NC program. With the partially processed work placed on the moving table, the moving table is positioned at the processing start position, and after the product processing NC program can be processed from the top position, the press function is disabled and the NC program is executed. I do. At this time, the moving table is positioned in accordance with the processing of the NC program, but the pressing operation is not performed, so that the punching operation is not performed again on the workpiece that has been processed halfway (no-punch operation). Thus, NC
The processing of the program is sequentially performed, and the positioning of the moving table is sequentially performed. The operator presses the “pause” button at the program point immediately before reaching the point where the processing of the NC program was interrupted in the middle of the previous machining and can resume the processing of the NC program and resume the processing. Then, the "single block" button that enables execution of the NC program one block at a time is enabled, and no-punch operation is performed for each block until the position of the block of the NC program reaches the position of the interrupted work. Then, after confirming that the final processing position of the workpiece that has been processed halfway and the position of the arrival block of the NC program that has been operated without punching are the same,
In order to cancel the no-punch operation, the press function is returned to the valid state, and the “single block” button is invalidated. In this way, the NC program processed in the no-punch operation is returned to a state in which the position of the moving table can be continuously determined and the processing of punching the work by the operation of the press can be performed. To perform the processing. With the workpiece that has been processed halfway placed on the moving table, the final processing position of the workpiece is found, and the processing block at the final punching position of the interrupted work is found in the product processing NC program, and the processing is interrupted from the beginning of the NC program. After the processing block up to the final punching position is deleted, and the next block interrupted is edited again as a product processing NC program that is the head of the remaining NC program of the workpiece that has been processed halfway,
The moving table is positioned at the processing start position, and the remaining part of the work that has been processed halfway is processed.

As a prior art related to the present invention, Japanese Patent Application Laid-Open No. 63-257006 discloses an operation completion signal and the like after a punch command is accumulated and stored by a counter, and automatic operation for return is performed in a machine lock state. The operation restart method described in Japanese Patent Application Laid-Open No.
In the publication No. 7306, in a punch press machine which is machined based on a program for multi-product picking, operation is resumed by giving a machining command from the material position of another product based on the product number of the interrupted product. An operation resuming method is disclosed.

[0005]

However, among the conventional methods employed when machining is resumed after interruption,
In the above-described method, since the workpiece that has been processed halfway is discarded, material is wasted, and the time required for halfway processing is also wasted. Depending on the method of creating the product processing NC program, it is conceivable to take out some products from the workpiece that has been processed halfway, but in such a case,
It is necessary to recreate the product processing NC program after the point where the difference from the initial production quantity occurs, extra products are created in the case of products that require a combination, or the interruption occurs according to the production plan. There is a problem that there is.

Further, in the above method, the work up to the halfway and the time to the interruption position are not wasted, but the operation of switching between "no punch operation" and "single block" is complicated. The operator performs a "pause" operation judgment after approaching the final punch position of a workpiece that has been processed halfway in the no-punch operation, and then checks whether the final punch position has been reached in the "single block" state. Therefore, there is a problem in that the operator cannot leave the punch press machine, and a reduction in working efficiency and a decrease in the operating rate of the punch press machine cannot be avoided.

Further, in the above-mentioned method, it is possible to eliminate the waste of the workpiece which has been processed halfway and the time required to reach the workpiece, and the waste of time caused by the "no-punch operation" as in the above-described method. However, it is necessary to judge which block of the product machining NC program has been processed up to the final punch position of the workpiece that has been processed halfway, and replace the interrupted next block with the remaining product machining NC program. It is necessary to re-edit the program as the head part. That is, the operator is required to have an ability to be familiar with the statement described in the NC program. Even if there is an operator having such a capability, the time required for editing the product processing NC program is wasted. In general, in the case of "memory operation", the editing operation of the product processing NC program can be performed by the punch press machine itself. However, in the case of "tape operation", the editing operation of the punch press machine cannot be performed. It is necessary to use the device of.

Furthermore, this method may not be applicable depending on how the statement of the product processing NC program is used. That is, when a plurality of identical products are created on one work piece, the NC program may be created with a statement using a multi-cavity function for arranging and processing the products in a grid pattern. An NC program for one product is described, and an NC program that has a reference point on the product and a product processing NC program that describes a command statement to which positional information to be arranged in a grid on the work is added. Is done. In the case of such an NC program, when actually processing a product, the NC program for one product is stored in a storage device inside the control device, and the reference points are switched according to position information arranged in a grid. There is no corresponding part of the product processing NC program for the last punch position of the interrupted work for control, and there is no means for processing from the next interrupted block.

On the other hand, in Japanese Unexamined Patent Application Publication No. 63-257006 mentioned as a technique related to the present invention, the machine lock function is not stored because data relating to the punching position is not stored. In the process of resuming to the interrupted position using the operation, the work must be aligned by the operator. Then, if this alignment is not performed accurately, there is a problem that a punch shift occurs after resumption and a defective product is generated.

Japanese Patent Laid-Open Publication No. 4-237306 discloses a processing program using a function of processing a plurality of products having the same punching shape from one material at a time (multiple product removal function). Since the configuration is such that the program resuming function is provided only for, a machining program including other shapes cannot be used. Therefore, it is necessary for the operator to input data such as the interrupted product number when instructing the resumption of processing, and when the interrupt is restarted, only the interrupted product portion must be discarded. There is.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned various problems of the prior art, and it is possible to waste a partially processed work when the product is interrupted due to an abnormality during the processing. It is an object of the present invention to provide a control method and a control device for a punch press machine which can return to a state immediately before the processing was interrupted and perform the remaining product processing with a simple operation and in a short time. It is.

[0012]

In order to achieve the above-mentioned object, in the present invention, the number of times of punching operation from the head block of the product machining NC program is changed every time the workpiece completes the punching operation. By storing the data of the coordinate position of the moving table on which the final punching operation has been performed and / or the rotational angle coordinate position of the punch with respect to the workpiece, the product that has been interrupted with respect to the final punch position of the workpiece that has been partially processed is stored. This is based on the knowledge of finding out from the stored information which block of the machining NC program was interrupted.

In short, the method for controlling a punch press according to the first invention is a method for controlling a punch press that positions a work placed on a moving table and punches the work with a punch and a die. Each time the work is processed, the coordinate position of the moving table and the number of punching operations from the start of the processing are stored, and when the processing is resumed after the interruption, the coordinate position of the moving table immediately before the interruption is stored. And positioning the moving table based on the information of the above, and controlling to restart the machining based on the machining program after the number of times of input of the punching operation signal in the machining program matches the stored number of times of the punching operation. It is a feature.

In the first aspect of the present invention, each time the workpiece is punched, the number of punching operations from the first block of the machining program is stored, and the coordinate position of the moving table on which the final punch has been performed is determined. It is remembered. Then, when the processing of the processing program is interrupted for some reason and a partially processed work is generated, the moving table is moved based on the coordinate position information of the moving table relating to the final punch stored immediately before the interruption. Positioned. After this positioning, processing from the first block of the machining program is started, and machining is restarted based on the machining program after the number of punching operation signal inputs in the machining program matches the stored number of punching operations. In this way, the product can be returned to the state immediately before the interruption and the remaining product can be processed with a simple operation and in a short time without wasting the product at the time of interruption during the processing of the product. Therefore,
Material is not wasted due to interruption of product processing due to mechanical abnormality, and the time required for the return operation can be reduced.

The control method of a punch press according to the second invention is a control method of a punch press which positions a work placed on a moving table and punches the work with a punch and a die. Each time the work is processed, the coordinate position of the moving table, the rotational angle coordinate position of the punch with respect to the work, and the number of punching operations of the punch from the start of processing are stored. Positioning the moving table and the punch based on information on the coordinate position of the moving table immediately before the interruption and the rotational angle coordinate position of the punch with respect to the workpiece, the number of inputting of the punching operation signal in the machining program and the stored punching operation Control to resume machining based on the machining program after the number of times matches. The one in which the features.

In the control method according to the second invention,
In the case of a punch press of the type in which the punch rotates and performs punching, the rotation angle coordinate position of the punch with respect to the work is stored in addition to the coordinate position of the moving table on which the final punch was performed. When the operation is interrupted, the moving table and the punch are positioned based on the information on the coordinate position of the moving table relating to the final punch and the rotational angle coordinate position of the punch with respect to the work stored immediately before the interruption. Other operations and effects are the same as those of the first invention.

In each of these inventions, until the number of times of inputting matches the number of times of punching operation stored, even if the press start signal is received, the driving of the press section is not actually performed, and only the arithmetic processing by the processing program is performed. Is preferably controlled to execute Further, after the number of inputs and the stored number of punching operations match, the arithmetic processing by the machining program can be temporarily stopped, and thereafter, machining can be resumed after waiting for a start command. With this configuration, the processing can be resumed after the operator confirms the processing interruption position in the pause state.

Next, a control device for a punch press according to a third invention relates to a control device for specifically realizing the control method for a punch press according to the first invention, which is mounted on a moving table. A punch press machine control device for positioning a work that has been processed and punching the work with a punch and a die, comprising: (a) a coordinate position of the moving table and the punch from the start of processing each time the work is processed; Storage means for storing the number of punching operations of
(B) positioning control means for positioning the moving table based on the information on the coordinate position of the moving table immediately before the interruption stored in the storage means at the time of resuming after the processing is interrupted, and (c) restarting the processing. Comparing means for comparing the number of times of punching operation signals input in the machining program after that with the number of punching operations stored in the storage means; and (d) the number of times of punching and the number of punching operations stored by the comparing means. And a start control unit for starting the press unit based on the machining program when it is determined that the numbers match.

A control device for a punch press according to a fourth aspect of the present invention relates to a control device for specifically realizing the control method for a punch press according to the second aspect of the present invention, and is mounted on a moving table. A punch press machine for punching a workpiece by a punch and a die, wherein the workpiece is punched by a punch and a die; (a) a coordinate position of the moving table and a rotation angle coordinate of the punch with respect to the workpiece each time the workpiece is processed; Storage means for storing the position and the number of punching operations from the start of machining; (b) when the machining is resumed after the interruption, the coordinate position of the movement table stored in the storage means and immediately before the interruption; Positioning control means for positioning the moving table and the punch on the basis of information on the rotation angle coordinate position of the punch with respect to the work; (c) machining Comparing means for comparing the number of times the punching operation signal is input in the machining program after the restart with the number of times of punching operation stored in the storage means; and (d) the number of times of inputting and the number of times of punching operation stored by the comparing means And a start-up control unit that starts up the press unit based on the machining program when it is determined that the values match.

In each of these inventions, the startup control means does not actually drive the press section even if it receives a press startup signal until the input count and the stored punching action count match. It is preferable to control so as to execute only the arithmetic processing by the machining program. Also,
The activation control means suspends the arithmetic processing by the machining program when it is determined by the comparing means that the number of inputs and the stored number of punching operations match, and then waits for an activation command, It is preferable that the press section is started based on the processing program.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of a control method and a control device for a punch press according to the present invention will be described with reference to the drawings.

In the punch press machine of the present embodiment, although not shown, a press section having a punch and a die is provided on the main frame, and a moving table for conveying a work is provided below the main frame. A mold magazine for accommodating a large number of molds in a set state is arranged at a position separated from the main frame by a predetermined distance, and A is provided between the mold magazine and the main frame.
A mold transfer device with a TC (automatic mold changing device) carriage is arranged.

As shown in FIG. 1, a control device for controlling the punch press machine includes a main body control device for controlling a table shaft motor for driving a moving table and a mold rotating shaft motor 1 for rotating a mold. 2, a press control device 4 for controlling the press shaft operating section 3, and an AT for a die changing device.
An ATC control device 6 for controlling the C-axis motor 5 is provided.

The main body controller 2 edits and manages a product machining NC program and edits and manages information relating to mold attributes (shape, size, clearance, etc.) for a mold number (MMC (Man Machine Controller)). 7
And the product machining NC program fetched by the MMC 7 is analyzed, and the table shaft motor, the mold rotating shaft motor 1
CNC (Co) that sends an operation command to the axis control circuit that controls
mputerized NumericalController) 8 and product processing N
P that controls the execution of the C program according to the state of the machine
An MC (Programmable Machine Controller) 9 is provided. Here, each controller MMC7,
The CNC 8 and the PMC 9 each include a central processing unit (CPU) that executes a predetermined program, a read-only memory (ROM) that stores various tables and the like, and a writable memory (a working memory) required to execute the program. RAM) and a non-volatile memory.

The product machining NC program selected by the MMC 7 is analyzed by the control program of the MMC 7 and converts the information of the mold used in the product machining NC program into a data format that can be received by the ATC controller 6.
After converting the press control information corresponding to the die to be used into a data format that can be received by the press control device 4, it is transferred to the ATC control device 6 and the press control device 4, respectively. On the other hand, the selected product processing NC program is transferred to the CNC 8 as it is. Thus, when the information necessary for the product processing is set in the CNC 8, the ATC control device 6, and the press control device 4, the execution of the product processing NC program is started.

Next, the control flow of the punch press during normal product processing will be described with reference to the flowchart shown in FIG.

S1 to S2: When the execution of the product machining NC program is started, a memory section in the PMC 9 for storing the number of actual machining punches, a moving table axis (X axis, Y axis) and a die at the time of completion of the press operation. The memory section storing the machine coordinate system position data of the rotation axis (C axis) is cleared to zero. S3 to S6: The CNC 8 analyzes each block of the product machining NC program and issues an operation command to the axis control circuit to position and move the moving table and the mold rotating shaft. When the positioning movement is completed, the CNC 8 performs the press control. A press start signal is output to the device. Upon receiving the activation signal, the press control device executes a press operation based on control data of the press unit corresponding to the die selected at that time. When the operation of the press section is completed, the press control device returns a press operation completion signal to the CNC 8.

S7-S8: The PMC 9 detects that the press operation completion signal is returned to the CNC 8, and outputs the machine coordinate position data of the table axis and the mold rotation axis at this time to the CNC 8.
Read more and update the data in memory. continue,
The data value of the memory that stores the actual machining punch count is 1
Is added. S9: If the product machining NC program has not been completed, the process returns to step S3 and repeats the processing. If completed, the flow ends. In this way, when the machining is performed normally, the process of updating the actual machining punch count and the position data of the table axis and the mold rotation axis during the latest punch operation is repeated.

According to the above processing, when the product processing NC program is interrupted due to the occurrence of an abnormality in the machine, the accumulated number of actual processing punches until immediately before the interruption, the table axis on which the punch immediately before the interruption was performed, and The position of the mold rotation axis can be known. Note that the actual number of punches and the latest punch position data stored at this time are stored in the memory even when the power of the control device of the punch press machine is turned off. Even if the mechanism is turned off, it is possible to immediately continue the processing of a partially processed product when the power is turned on next time.

Next, the control flow of the punch press machine when processing the remainder of a partially processed product will be described with reference to the flowchart shown in FIG.

T1: When processing the rest of the product whose processing has been interrupted, the operator removes the cause of the interruption at the time of the interruption, and then sets each control axis to the origin while the product is placed on the moving table. Then, the NC program of the interrupted product is processed from the first block. T2: The operator turns on the program middle restart button. By this operation, in the control device of the punch press machine, the CNC 8 enters a machine lock state in which the operation command is not issued to the axis movement control circuit even if the block of the NC program is processed, and only the processing inside the CNC 8 is performed. Further, the press control device 4 does not issue an operation command of the press section even if the press start command signal is output from the CNC 8, performs only processing inside the press control device, and outputs a press operation completion signal to the CN.
It returns to C8.

T3 to T4: The operator selects the product processing NC program which has been processed halfway with the MMC 7, and presses the automatic operation start switch. Then, the control device of the punch press machine recognizes that the restart button in the middle of the program is in the ON state.
The following processing is performed without starting processing from the first block of the program. That is, the machine coordinate position data of the table axis and the die rotation axis stored at the time of the latest punching operation during execution of the interrupted NC program is called from the memory of the PMC 9 and the axis movement control is performed according to the processing programmed in the PMC 9. Then, the product that has been processed halfway is automatically positioned.

T5 to T10: After the PMC 9 detects that the positioning of the partially processed product has been completed, the process starts from the first block of the product processing NC program. When the execution of this product processing NC program is started,
The memory section in the PMC 9 for storing the number of halfway restart punches is cleared to zero. When executing the NC program, the moving table and the mold rotating shaft do not actually move even in the block having the moving table and the mold rotation positioning command because of the machine lock state. Also, CN
Even if a press start command is output from C8 to the press control device 4, the press section does not actually operate and returns a press operation completion signal to the CNC 8. On the other hand, the PMC 9 detects that the press operation completion signal is returned to the CNC 8, and sets the data value of the memory for storing the number of halfway restart punches in the PMC 9 to 1. Next, the data value of the memory of the number of halfway restart punches is compared with the data value of the memory storing the number of actual machining punches immediately before the interruption during the execution of the previously interrupted NC program. If it is smaller than the number of actual processing punches, the next block of the product processing NC program is processed. Similarly, in the next block, every time the press operation completion signal is detected, 1 is added to the data value of the memory that stores the number of times of punching restarted halfway.

T11 to T12: When the number of halfway reopening punches becomes equal to the number of actual machining punches, PMC 9
A temporary stop command is output to C8 to temporarily stop the processing of the NC program of CNC8. Next, when the operator turns off the program halfway restart button, the control device of the punch press releases the machine lock state of the CNC 8 and releases the state in which the press control device 4 does not issue a press section movement command. At this point, in the punch press machine, the positions of the table shaft and the mold rotating shaft, in other words, the positions at the time of processing the product, return to the state where the punching operation immediately before the interruption of the previously interrupted product processing is completed. At the same time, the processing state of the control device has returned to the state where the punching operation immediately before the interruption is completed. T13: When the operator presses the start switch to release the pause state, the control device of the punch press machine
The NC program is continued from the next block in which the punch operation immediately before the interruption in the previous actual machining is completed.

According to the present embodiment, the machine coordinate position and the number of punches are stored during normal product processing according to the product processing NC program, so that the NC program is interrupted during the processing. Even if a situation occurs, the moving table and the mold rotational position are returned to the punching operation state immediately before the interruption based on the stored machine coordinate position data immediately before the interruption, and the table shaft, the mold rotating shaft, and the press shaft are restored. Processing N without operating
Since the C program is executed from the beginning in the control device up to the number of punches immediately before the interruption, the machining of the interrupted product can be resumed in a short time and smoothly without wasting the interrupted product processing material. .

In the present embodiment, a description has been given of an example in which the present invention is applied to a punch press of a type in which a die is rotated to perform a punching process. This eliminates the need to store the machine coordinate position data of the mold rotation axis.

Also, in this embodiment, when the number of halfway reopening punches becomes equal to the number of actual machining punches, the CNC 8
(Step T11 in FIG. 3), but an embodiment in which such a pause function is omitted and the operation is automatically resumed is also possible.

Although the present embodiment has been described as applied to a punch press having an automatic die changing device (ATC), the present invention is also applicable to a punch press such as a turret punch press. Can be applied.

[Brief description of the drawings]

FIG. 1 is a configuration block diagram of a control device of a punch press according to the present embodiment.

FIG. 2 is a flowchart illustrating a control flow during normal machining.

FIG. 3 is a flowchart showing a control flow at the time of restarting halfway.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 table axis motor, mold rotation axis motor 2 main body control device 3 press axis operation unit 4 press control device 5 ATC axis motor 6 ATC control device 7 MMC (Man Machine Controller) 8 CNC (Computerized Numerical Controller) 9 PMC (Programmable Machine) Controller)

Claims (8)

[Claims] 1. A method for controlling a punch press machine for positioning a work placed on a moving table and punching the work with a punch and a die, comprising the steps of: The position and the number of punching operations of the punch from the start of machining are stored, and when the machining is resumed after the interruption, the moving table is positioned based on the coordinate position information of the moving table immediately before the interruption. A control method for controlling a punch press machine, wherein after the number of times of inputting a punching operation signal in the processing program matches the stored number of times of punching operation, processing is restarted based on the processing program. 2. A method of controlling a punch press machine for positioning a work placed on a moving table and punching the work with a punch and a die, comprising the steps of: The position, the rotational angle coordinate position of the punch with respect to the workpiece, and the number of punching operations from the start of machining are stored. When the machining is resumed after the interruption, the coordinate position of the moving table and the punch position of the punch immediately before the interruption are stored. Based on the information on the rotation angle coordinate position with respect to the workpiece, the moving table and the punch are positioned, and based on the machining program after the number of times of the punching operation signal input in the machining program and the stored number of punching operations match. A control method for a punch press machine, wherein control is performed to restart processing. 3. Until the number of inputs matches the stored number of punching operations, even if a press start signal is received, only operation processing by the machining program is executed without actually driving the press unit. The control method for a punch press according to claim 1 or 2, wherein the control is performed in the following manner. 4. The method according to claim 1, wherein after the number of times of inputting and the stored number of times of punching operation coincide with each other, arithmetic processing by the processing program is temporarily stopped, and then processing is restarted after waiting for a start command. 4. The method for controlling a punch press according to any one of 2 and 3. 5. A control device for a punch press machine for positioning a work placed on a moving table and punching the work with a punch and a die, wherein (a) the movement is performed each time the work is processed. Storage means for storing the coordinate position of the table and the number of punching operations from the start of machining; (b) at the time of resuming after machining has been interrupted, the coordinates of the moving table immediately before the interruption stored in the memory means Positioning control means for positioning the moving table based on the position information; (c) comparing the number of times of punching operation signals input in the processing program after restarting processing with the number of punching operations stored in the storage means And (d) when it is determined by the comparing means that the number of inputs and the stored number of punching operations match. Control device for a punch press machine, characterized in that it comprises a start control means for activating the press section on the basis of the machining program. 6. A control device for a punch press machine for positioning a work placed on a moving table and punching the work with a punch and a die, comprising: (a) moving the work each time the work is processed; Storage means for storing the coordinate position of the table, the rotational angle coordinate position of the punch with respect to the work, and the number of punching operations from the start of processing; (b) when the processing is interrupted and resumed, the storage means Positioning control means for positioning the moving table and the punch on the basis of information on the coordinate position of the moving table immediately before the interruption and the rotational angle coordinate position of the punch with respect to the work; (c) processing after restarting the processing Comparing means for comparing the number of times of punching operation signals input in the program with the number of punching operations stored in the storage means; And (d) activation control means for activating a press section based on the machining program when the comparison means determines that the number of inputs and the stored number of punching operations match. Control device for punch press machine. 7. The starting control means according to the processing program without actually driving the press section even if it receives a press start signal, until the input number and the stored number of punching operations match. 7. The control device for a punch press according to claim 5, wherein the control is such that only arithmetic processing is executed. 8. The activation control means, when the comparison means determines that the number of times of inputting and the stored number of times of punching operation coincide with each other, temporarily suspends arithmetic processing by the machining program, and thereafter activates The control device for a punch press machine according to any one of claims 5, 6, or 7, wherein the control section starts the press section based on the processing program after waiting for a command.