JP4301753B2 - Device for resuming press working - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a method for resuming midway of press work applied to various punch presses such as a turret punch press and a device for resuming midway of press work.
[0002]
[Prior art]
In general, during the operation of a punch press machine equipped with an NC device, some abnormality may occur and the press work may be stopped halfway. There are various causes for this type of abnormality, such as forgetting to insert a die (punch / die), the die biting the workpiece, or an abnormal clamping of the workpiece. It stops on the way.
[0003]
When the press processing is stopped halfway due to the occurrence of such an abnormality, the operator must remove the cause of the abnormality of the punch press machine and then restart the press processing by the punch press machine.
[0004]
For example, in a machining program that performs a punching operation multiple times using the same die (punch / die) while feeding the workpiece at a predetermined pitch, even when the workpiece is stopped in the middle of executing the punching operation multiple times Depending on the situation, the method of restarting is naturally different. That is, if the punching operation just before the stop (n-th) is not completed, it may be resumed from the punching operation immediately before the stop (n-th). When the operation is stopped before the next (n + 1) th punch operation is started, it is preferable to restart from the next (n + 1) th punch operation.
[0005]
[Problems to be solved by the invention]
However, in the conventional apparatus, when the press work of the punch press machine is stopped halfway and restarted, the restart position is determined in advance regardless of the situation when the punch press is stopped. That is, in the above example, even if the punching operation just before the stop (n-th) is not finished, it is set to resume from the punching operation just before the stop (n-th), It is not possible to resume from the (n + 1) th punch operation, and either the (nth) punch operation immediately before the stop is set as the restart position, or the next (n + 1) th punch operation is set as the restart position. There is a problem that it is impossible to select and set.
[0006]
The object of the present invention is to eliminate the above-mentioned problems of the conventional apparatus and restart the press working that was stopped during the execution of the machining program, or the last punch operation immediately before the stop or the first punch operation that follows this It is an object of the present invention to provide a method and an apparatus for restarting a pressing process that can be executed by selecting which punching operation is to be restarted.
[0007]
[Means for Solving the Problems]
The present invention solves the above-mentioned problem, and the invention according to claim 1 is a turret punch press stopped during the execution of a machining program including a plurality of execution units including execution units for performing a plurality of punch operations. In the mid-press restarting device that restarts press processing by the machine, the execution of the processing program is constantly monitored, and each execution unit included in the processing program is classified into already executed, executed, and not executed. to a function of storing the execution status of each execution unit, together contain multiple punches count to run unit running, has both a function for saving the executed punch number of the entire punch count , The execution monitoring means for detecting when the press working is stopped halfway, and the case where the execution unit stopped halfway after the reason for the halfway stop includes a plurality of punch times Halfway restart setting that prompts the operator to select which punching operation to restart from the last punching operation of the number of executed punches in the execution unit or the first punching operation of the number of unexecuted punches following this An intermediate restart setting means for displaying a screen and saving the selected restart setting position , execution status of each execution unit saved by the execution monitoring means and the number of executed punches, that is, each execution unit included in the machining program And when the execution unit stopped halfway includes a plurality of punches, the number of punches executed out of all the punches and the restart setting position stored by the intermediate restart setting means Thus, the machining program is processed without the punching operation from the beginning of the machining program to one before the set punching operation. A middle resuming device pressing provided with a resumption processing unit to resume the actual press working from the set punch operation.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing an embodiment of an intermediate restarting device for press working according to the present invention. The intermediate restarting device 1 for press working is applied to a punch press machine 20 equipped with an NC device / management computer 10. It is what is done.
[0010]
The NC device / management computer 10 includes an NC device (NC side) 10a that operates the punch press machine 20 based on NC data, and a management computer (Windows side) 10b that operates in Windows.
[0011]
The NC device (NC side) 10a is generated by an upper NC program generation device (not shown) such as an automatic programming device and stores NC data transmitted through a communication line, and NC data from the NC data memory 11 Is provided with an NC data processing unit 12 that performs necessary processing and a machine control unit 13 that applies NC data processed by the NC data processing unit 12 to the punch press machine 20.
[0012]
NC data from the machine control unit 13 is transmitted to the servo system 21 of the punch press machine 20 to operate the drive members of each unit such as a servo motor. An operation signal of the sequencer 22 that performs a predetermined operation such as position detection in accordance with the operation of the servo system 21 is transmitted to the servo system 21.
[0013]
The management computer (Windows side) 10b includes a display unit 16 capable of displaying various data on the screen.
[0014]
The press working resumption device 1 includes an execution monitoring unit 2 provided in the NC device (NC side) 10a of the NC device / management computer 10. The execution monitoring unit 2 monitors the execution of the machining program, and executes the execution program. The execution status of each execution unit of the machining program including the execution unit stopped in step 1 and the number of executed punches among the number of punches included in the execution unit stopped halfway are stored.
[0015]
That is, the execution monitoring unit 2 constantly monitors the execution of the machining program by the machine control unit 13, and also constantly monitors the execution of the pressing (machining program) by the servo system 21 and the sequencer 22 of the punch press machine 20. Then, the execution units included in the machining program are classified into those already executed, those that are being executed, and those that are not yet executed, the execution status of each execution unit is saved, and a plurality of execution units that are being executed are stored. When the number of punches is included, the number of executed punches among the total number of punches is stored.
[0016]
In addition, the press working halfway restart device 1 includes a halfway restart setting processing unit 3 provided in the management computer (Windows side) 10b of the NC device / management computer 10, and this halfway restart setting processing unit 3 cancels the halfway stop reason. After that, press working is resumed from either the last punching operation of the number of executed punches in the execution unit stopped in the middle stored in the execution monitoring unit 2 or the first punching operation of the number of unexecuted punches following this. It is to set whether to do.
[0017]
That is, when the execution monitoring unit 2 detects that the press working has been stopped for some reason during the execution of the machining program monitored by the execution monitoring unit 2, the midway restart setting processing unit 3 starts from the execution monitoring unit 2. That is conveyed. Then, the screen data stored in the halfway restart screen memory 4 is displayed on the display unit 16. The halfway restart screen memory 4 includes the screen data of the halfway restart button display screen shown in FIG. Screen data of the halfway restart setting screen shown in FIG. 4 is stored.
[0018]
When the operator cancels / restores the reason for the midway stop and operates the midway restart button displayed on the display unit 16, when “final process” is selected on the midway restart setting screen that appears on the screen, the midway restart setting processing unit 3 is set to restart the press work from the last punch operation of the number of executed punches in the execution unit stopped halfway, and stores the restart setting position (the last punch operation of the number of executed punches). On the other hand, when “next process” is selected on the halfway restart setting screen, the halfway restart setting processing unit 3 sets that the press work is restarted from the first punch operation of the number of unexecuted punches in the execution unit that is stopped halfway. The restart setting position (the first punching operation for the number of unexecuted punches) is saved. When an appropriate start button is operated, the midway restart setting processing unit 3 sets the saved restart setting position (the last punch operation for the number of executed punches or the first punch operation for the number of unexecuted punches) The restart data processing unit 5 is notified.
[0019]
The halfway resuming apparatus 1 for press working includes a resuming data processing unit 5 provided in the management computer (Windows side) 10b of the NC device / management computer 10. The resuming data processing unit 5 is notified from the halfway resuming setting processing unit 3. From the beginning of the machining program to the punch operation just before the restart setting position based on the restart setting position (the last punch operation of the number of executed punches or the first punch operation of the number of unexecuted punches) The NC data processing unit 12 is instructed to process the machining program without the punching operation and restart the actual pressing from the punching operation at the restart setting position.
[0020]
Therefore, the restart data processing unit 5 directly determines the execution status of each execution unit saved by the execution monitoring unit 2 and the number of executed punches among the number of punches included in the execution unit suspended halfway from the execution monitoring unit 2. Alternatively, the above instruction is given to the NC data processing unit 12 based on the execution status, the number of punches, and the restart setting position. Alternatively, the execution status and the number of punches stored by the execution monitoring unit 2 are directly transmitted from the execution monitoring unit 2 to the NC data processing unit 12, and the restart data processing unit 5 transmits only the restart setting position to the NC data processing unit 12. It is also possible to give the above instructions.
[0021]
Next, the effect | action of said embodiment is demonstrated using the flowchart shown in FIG.
[0022]
First, press processing is performed by executing a processing program (step S1). That is, an appropriate number (for example, several tens to several hundreds) of execution units included in the machining program are sequentially processed, and when the execution unit includes a plurality of punch times, the predetermined number of punch operations are repeatedly executed. .
[0023]
At this time, the execution monitoring unit 2 monitors the execution of the machining program, classifies the execution units included in the machining program into already executed ones, executing ones, and unexecuted ones. And when the execution unit in execution includes a plurality of punches, the number of executed punches is stored among all the punches (step S2).
[0024]
If the press working is interrupted for some reason during the execution of such a machining program (“intermediate stop” in step S3), the operator cancels / restores the reason for the mid-stop (step S10).
[0025]
Thereafter, the halfway restart button display screen shown in FIG. 3 is displayed, and when the operator operates the halfway restart button (step S11), the halfway restart setting screen shown in FIG. 4 is displayed (step S12).
[0026]
On this halfway restart setting screen, the operator can make the last punching operation for the number of executed punches ("final process") or the first punching operation for the number of unexecuted punches following this. ("Next process") prompts the user to select the restart position from which punching operation is resumed, and the operator selects the restart position ("final process" or "next process") accordingly Input (step S13).
[0027]
When the restart position selected and input by the operator is the last punch operation (“final punch” in step S14), the halfway restart setting processing unit 3 performs the last punch operation of the number of executed punches in the execution unit stopped halfway. Is set to resume the press working (step S15).
[0028]
On the other hand, when the restart position selected and input by the operator is the first punching operation ("next punch" in step S14), the midway restart setting processing unit 3 sets the first number of unexecuted punches in the execution unit stopped halfway. It is set to resume the press work from the punching operation (step S25).
[0029]
Then, when the operator operates the start button (step S16), based on the instruction from the restart data processing unit 5, the NC data processing unit 12 selects the selected punch in the execution unit that has been stopped halfway from the beginning of the machining program. Until one operation, the machining program is processed without a punching operation (step S31). That is, when the restart position is set from the last punch operation of the number of executed punches in the execution unit stopped halfway, the processing of the machining program is performed without the punch operation up to the previous one. In addition, when the restart position is set from the first punch operation of the number of unexecuted punches in the execution unit that is stopped halfway, the punch is performed up to that point (that is, the last punch operation of the number of executed punches). The machining program is processed without any action.
[0030]
Then, when the processing program processing is resumed (step S32), the process returns to step S1 and from that position, the NC data processing unit 12 sends the actual press to the punch press machine 20 via the machine control unit 13. Processing will be resumed.
[0031]
【The invention's effect】
As described above, the present invention saves the execution unit of the machining program stopped in the middle of execution and the number of executed punches out of the number of punches included in the execution unit, and saves it after canceling the reason for the intermediate stop. The selection input prompts the user to select whether to restart the press work from the last punch operation of the executed punch number in the execution unit that is stopped halfway or the first punch operation of the number of unexecuted punches that follows. After the input, the machining program is processed without the punching operation from the beginning of the machining program to one before the selected punching operation in the execution unit stopped halfway, and the actual pressing is performed from the selected punching operation. Since it is configured to resume machining, when resuming press working that was stopped during the execution of the machining program, the last Inch operation, or the first punch operation subsequent thereto, there is an effect that can be performed by selecting either one of the punch operation to resume pressing of.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of an intermediate restarting device for press working according to the present invention.
FIG. 2 is a flowchart showing the operation of that of FIG.
FIG. 3 is a diagram showing a midway restart button display screen.
FIG. 4 is a diagram illustrating a midway restart setting screen.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Press work resumption apparatus 2 Execution monitoring part 3 Halfway resumption setting process part 4 Halfway resumption screen memory 5 Resumption data processing part 10 NC apparatus / management computer 10a NC apparatus (NC side)
10b Management computer (Windows side)
11 NC data memory 12 NC data processing unit 13 Machine control unit 16 Display unit 20 Punch press machine 21 Servo system 22 Sequencer

Claims (1)

In the resumption device during the press work that resumes the press work by the turret punch press machine stopped in the middle of the execution of the machining program including a plurality of execution units including the execution unit that performs a plurality of punch operations,
A function that constantly monitors the execution of the machining program, classifies each execution unit included in the machining program into an already executed one, a running one, and an unexecuted one, and stores the execution status of each execution unit ; When the execution unit being executed includes a plurality of punch times, it has a function of saving the number of executed punches out of all the punch times, and also executes execution monitoring means for detecting when the press working is stopped halfway (2) and
When the execution unit stopped halfway includes a plurality of punch times after the midway stop event is canceled, the last punch operation of the executed punch number in the execution unit, or the first punch operation of the unexecuted punch number following this, A halfway restart setting means (3) for displaying a halfway restart setting screen for prompting the operator to select from which punching operation to restart the press work, and storing the selected restart setting position;
The execution status of each execution unit stored by the execution monitoring unit and the number of punches that have been executed, that is, the execution status of each execution unit included in the machining program, and the execution unit that is stopped halfway includes a plurality of punches From the beginning of the machining program to one before the set punching operation, based on the number of executed punches out of the total number of punches and the restart setting position saved by the midway restart setting means. Resumption processing means (5) for performing a machining program process without a punching operation and resuming the actual press working from the set punching operation;
An apparatus for resuming press working halfway.

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