JPH03230825A - Method and appatatus for operating turret punch press on schedule - Google Patents

Abstract

PURPOSE:To improve productive efficiency by mounting plural dies on plural turrets to perform many kinds of punching on a workpiece according to plural schedule data to work plural workpieces. CONSTITUTION:Die information indicating allocation state of each die on each turret is provided on plural schedule data. A fundamental die information to obtain a number of die change is set. In each schedule data, the number of die change of each schedule data to the fundamental die information is obtained by comparing the fundamental die information with each die information. A schedule data having the least number of die change is selected and sampled based on the number of die change obtained. The die information contained in the selected schedule data and the fundamental die information are compared and the fundamental die information is updated based on the result. This process is repeated until these selection and sampling are completed entirely and the schedule data are rearranged in order of the selection and sampling to perform press work. In this way, the address of a working die can be written automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a scheduled operation method and apparatus for a turret punch press that sequentially produces different types of workpieces according to a set schedule.

[Prior Art] A turret punch press has multiple types of molds mounted on upper and lower turret disks each having a large number of turrets.
A necessary mold is moved to a predetermined processing point by rotation of a turret disk, and a temporary phase set on a processing table is moved to the processing position using an XY axis moving device to continuously drill a wide variety of holes. Then, other types of workpieces will be successively produced.

In such a turret punch press, for example, if workpiece A is currently being processed and workpiece B is to be processed next, if all the molds required to process workpiece B are not installed in the turret, workpiece B will be processed. processing cannot be performed, and setup changes such as adding necessary molds or replacing molds are required. During this time, the machine will stop, so production efficiency will decrease unless the number of setup changes is minimized.

[Problem to be solved by the invention] However, since the conventional equipment only had the function of performing machining according to the machining schedule created by the operator, the machining schedule created by the operator was not an efficient one with a small number of setup changes. , since processing is performed as is, there is a problem that production efficiency decreases.

That is, in the conventional apparatus, in order to improve production efficiency, the operator must create each machining schedule with a small number of setup changes, which poses a problem in that the operator is burdened with troublesome work.

In addition, in the scheduled operation of a turret punch press, workpieces with different thicknesses are often processed one after another. If a machining schedule is created such that there is a mixture of such sounds, there is a problem in that the machining sound becomes softer or louder in the factory, which is unpleasant to the ears.

This invention was made in view of these circumstances, so a machining schedule with fewer setup changes is automatically created,
It is an object of the present invention to provide a scheduled operation method for a turret punch press that can automatically perform processing according to this processing schedule.

Another object of the present invention is to provide a schedule operation device for a turret punch press that is effective as a noise countermeasure by automatically creating a machining schedule that takes machining noise into consideration.

[Means and effects for solving the problem] In this invention,
In a turret punch press that performs various types of punching press processing on a workpiece by attaching a plurality of different molds to a plurality of turrets according to a plurality of different schedule data for processing a plurality of workpieces, each turret is attached to a plurality of different schedule data for processing a plurality of workpieces. The assignment of each mold to the first stage is to provide mold information indicating the mode, and also to set basic mold information for determining the number of mold replacements.
a second step of calculating the number of mold replacements for each schedule data with respect to the basic mold information by comparing the set basic mold information and each mold information for each schedule data; A third step of selecting and extracting schedule data with the least number of mold replacements based on the determined number of mold replacements, and comparing mold information included in the selected schedule data with the basic mold information. and a fourth step of updating the basic mold information based on the comparison result, and the selection extraction of the third step is completed in the second step to the fourth step. repeating until then, rearranging the schedule data in the selected extraction order of the third step,
The press working is performed in accordance with this rearranged order.

The basic mold information is obtained by a first method of initializing the most frequently used mold in each turret, which is determined based on the mold information in the plurality of schedule data, and by using the basic mold information as the current actual method. There is a second method of initializing the contents to correspond to the mold mounting state.

According to the method of the present invention, schedule data is rearranged so that the number of mold changes, that is, the number of setup changes, is reduced.

Further, in the present invention, in a turret punch press that performs various types of punching press processing on a workpiece by attaching a plurality of different molds to a plurality of turrets according to a plurality of different schedule data for processing a plurality of workpieces, the plurality of a setting means for providing each schedule data with plate thickness information indicating the plate thickness of the workpiece, and setting a boundary plate thickness value for dividing the plurality of schedule data according to the workpiece plate thickness; and plate thickness dividing means for dividing and rearranging the plurality of schedule data using the boundary plate thickness value as a boundary.

According to the configuration of the present invention, a plurality of schedule data is divided into several parts with the boundary plate thickness value as a boundary, so that thick plates and thin plates can be randomly mixed and operated. It disappears.

[Embodiments] The present invention will be described below according to embodiments shown in the accompanying drawings.

Figure 2 shows the overall configuration of the turret punch press system, and this system consists of an auto stocker 10. It is roughly divided into a destack loader 20, a turret punch press 30, and an unloader 40.

Auto stocker 10 has the required number of plates (workpieces) wk
Pallet storage areas 101 to 10d are provided in which four stages of pallets PT each loaded with pallets PT can be stocked. The plate materials wk on the pallets PT stocked in these pallet storage areas 108 to 10d are placed on the pallets PT by a traverser (not shown) that is movable in the vertical direction (direction of arrow A) and the direction of front and back (direction of arrow B). The workpiece is transferred to the position of the workpiece supporter 21 of the destack loader 20 in this state.

The destack loader 20 separates the plate materials wk on the pallet FT placed on the work supporter 21 one by one and carries them to a predetermined position of the turret punch press 30, and separates the plate materials wk. A carrier 22, a lifter 23, a work support roller 24, a suction pad 25, etc. are provided for transporting the workpiece to a processing position.

The carrier 22 is movably attached to the horizontal rod 26, and the carrier 22 is provided with a plurality of suction pads 25 that suction the plate material wk via an arm 27. The arm 27 is movable up and down, and this vertical movement separates the plate material wk sucked by the suction pad 25 from other plate materials. These plural suction pads 25 are selectively driven according to the size of the plate material wk.

A lid 23 is provided below the work supporter 21 to move the work supporter 21 up and down, and by moving the lifter 23 up and down, the workpiece wk can always be sucked at the same height position.

A work support roller 24 is provided between the work supporter 21 and the suction pad 25 to support and convey the suctioned plate material wk. This work supporting roller 24 is composed of a pair of chains TN with ends and a plurality of rollers 28 installed between these chains TN, and the storage box 2
It can be rolled up and stored, and unfolded to support the workpiece only when necessary. That is, since only one end of the plate material wk can be levitated by the suction pad 25 alone, after one end of the plate material wk is levitated by the upward movement of the suction pad 25, the entire plate material is lifted by rolling out the work support rollers 28. It is completely separated from other board materials and supports the separated board material.

In the turret punch press 30, upper and lower turret disks 31 each having a large number of turrets are each equipped with a plurality of types of molds, and the rotation of the turret disks 31 moves the required molds to a predetermined processing point Pc, and places them on the processing table. By moving the plate material wk installed at The schematic configuration is shown.

The XY-axis moving device 32 includes a base 34 that is movable along the Y-axis 33, and a guide rail 3 provided on the base 34.
The workpiece wk supported by the workpiece clamp 37 is moved between the base 34 and the carriage. 36 to move in the XY force direction and perform an operation of positioning at the processing position Pc.

Further, the upper and lower turret disks 31 each have several dozen types of turrets, and by attaching different molds to these turrets and rotating the T-axis 38, the required molds are sequentially positioned at the processing position Pc. Various holes are sequentially punched by lowering a punch (not shown) located above the processing position.

Next, in FIG. 2, the unloader 40 is for carrying out the plate 44wk that has been processed by the turret punch press 30 and loading it, and is equipped with a carrier 41, a lifter 42, a double shuttle cart 43, etc. It consists of

The carrier 41 is movably attached to a horizontal rod 44 provided between the turret punch press 30 and the unloader 40, and a hand 45 for gripping the plate material 2wk is attached to the carrier 41.

That is, the plate material wk that has been processed in the turret punch press 30 is moved from the processing position Pc of the turret punch press 30 to the unloader 40 by moving the carrier 41 in the direction of arrow C along the horizontal rod 44 while being gripped by the hand 45. is carried out to the position of the shuttle cart 43.

The lifter 42 gradually lowers the height of the shuttle cart 43 as the processed plate wk is carried in from the turret punch press 30, so that the plate is always carried out at the same height. The double shuttle cart 43 moves on a rail 46 extending in a direction perpendicular to the direction in which the plate materials are carried in, and has a space in which two plate materials wk can be arranged side by side. That is, each time a predetermined number of plate materials wk have been carried out, the cart into which the plate materials wk are carried is switched, so that products can be discharged without stopping the apparatus.

FIG. 4 shows the configuration of the control system of this turret punch system. An input device 51 is used to input various data and commands to the automatic programming 3 and ramming device 50. In this case, the input device 51 is shown in FIG. , NC program name, plate thickness data, clamp position data (clamp center position for each of the two clamps), mold information (
Information indicating how each mold is allocated to each turret), etc. are input.

According to these input data, the automatic programming device 50 performs the following for each program, as shown in FIG.
An NC program including items such as workpiece plate thickness data, clamp position data, mold information, etc. is automatically created, and the created NC program is stored in the NC data storage memory 52. In FIG. 5, rT104-DOO], J means that the mold numbered 001 (a pair of upper and lower molds) is attached to the turret numbered 104.

The schedule management device 60 includes the NC data storage memory 5
2 and the input device 61
A schedule is created based on data such as the processing order, planned production quantity, shelf number, trolley number, and delivery pattern, etc., manually entered through the 4.
Transfer to C device 63.

To explain this mode, the schedule management device 60 performs N
Necessary items are read out as appropriate from the NC program stored in the C data storage memory 52 and displayed on the display device 62 in the manner shown in FIG. The operator can check the processing order, planned production quantity, shelf number, etc. while looking at this display screen.
Data such as truck numbers and delivery patterns are manually entered into each schedule data via the input device 61. The planned production quantity indicates how many pieces of the product of the corresponding schedule data will be produced, and the shelf number indicates the pallet storage location for the work], Oa ~ 10
The cart number indicates how to use the double cart in the unloader 40, and the unloading pattern shows how to load the product onto the cart. The carry-out pattern 1 is front-aligned, and the carry-out pattern 3 is rear-bound. The current production quantity of the product of the corresponding program is displayed in the production record column, and the planned production quantity - actual production quantity is displayed in the 5. remaining production column.

The schedule management device 60 has a program sorting function (which is the main component of this invention) to minimize setup changes.
The schedule management device 60 includes a schedule data sorting function) and a program sorting function based on workpiece thickness, and when an operator instructs to execute these functions, the schedule management device 60 performs machining in the specified machining order. First, as will be described later, the schedule data is automatically sorted, or rearranged, and the NC program is transferred to the NC device 63 in accordance with the schedule created based on the rearranged results. If the sorting is not performed, the NC program is transferred to the NC device 63 according to a schedule according to the designated machining order, and as a result, machining is performed according to the designated machining order.

The schedule management device 60 sequentially sends the NC program to the NC device 63 according to the schedule thus formed.
Transfer to. The NC device 63 drives and controls the turret punch press 30 according to the transferred NC program, and transmits the control information to the sequencer 64.
Enter. The sequencer 64 has a work loading device drive section 70 that drives the auto stocker 10 and the destack roller 20 based on the input control information, and a turret punch press drive section 7 that drives the turret punch press 30.
And the workpiece unloading device drive unit 72 that drives the unloader 40 is sequence-controlled.

Hereinafter, the main components of the present invention, a program sorting function using a mold and a program sorting function based on workpiece plate thickness for minimizing setup changes, will be described in detail.

First, the program sorting function by mold will be explained.

FIG. 1 shows the procedure of a program sorting function using molds performed by the schedule management device 60, and the details of this function will be explained below with reference to this flowchart.

This mold-based program sorting function is to change the schedule data arrangement (processing order) shown in Figure 76 to minimize the number of mold replacements, and is created using the automatic programming creation device 5°. Each NC
The schedule data is rearranged using the mold information in the program (information indicating the correspondence between the turret number and the mold number) as the main parameter.

When the operator issues an instruction to execute a program sorting function using molds via the input device 61, the schedule management device 60 displays on the display device 62 whether the program sorting function using molds is to be performed using method I or method (2).
(step 100).

Before explaining the above method I and method (2), what is called "reference mold information" will be explained.

Standard mold information is the mold information that is the standard for determining the number of mold replacements, which is the judgment standard information for sorting the schedule data (information that indicates the manner in which each mold is allocated to each turret). ), and there are the following two methods for initial setting of this reference mold information, and these can be selected and set arbitrarily by the operator.

Method I is a method in which the current mold mounting information, which is updated sequentially during processing, is used as the reference mold information, and the mold mounting information stored at the time of creating the schedule program is used as the reference mold. information (step 110).

The schedule management device 60 updates the internal mold mounting information storage buffer with the mounting information at each time every time a mold is replaced or added during actual processing.
Method I is to directly use the stored contents of the mold mounting information storage buffer in the schedule management device 60 as the reference mold information.

Method ■: This is a method in which the standard mold information is determined by internal processing without being based on the current mold mounting information. Specifically, the most frequently used molds for each turret in all the schedule data are determined, and these are The data assigned to the designated turret is set as reference mold information (step 120).

For example, in the case of a schedule data program as shown in Figure 7, the most frequently used molds for each turret are shown in Figure 8 (
It becomes as shown in a). In this method (2), if there are a plurality of molds that have been used the same number of times for each turret, the mold included in the schedule data with the lowest processing order specified by the operator is selected.

In this way, method 1 is used for program sorting using molds.
There are two methods, Method ■ and Method ■, but the difference between these methods, Method ■, and Method ■ is only in the initial state setting of the reference mold information, that is, in the content of the reference mold information in the initial state. Exactly the same processing is done.

Next, the schedule management device 60 compares the initialized basic mold information with the mold information included in each schedule data for each schedule data, and based on the comparison result, the basic mold information The number of die replacements for each schedule data is determined to be 0 (step 130). The number of mold replacements indicates the number of turrets in which molds need to be replaced or added with respect to the mold mounting state expressed in the reference mold information.

For example, in a schedule data program as shown in FIG. 7, if method (2) is selected, the reference mold is
), the number of mold replacements for schedule data A is 0, the number of mold replacements for schedule data B is 3, the number of mold replacements for schedule data C is 0, and the number of mold replacements for schedule data D. is 2
The number of mold replacements in schedule data E is O times. The number of mold replacements in schedule data F is 3 times. The number of mold replacements in schedule data G is 2 times. The number of mold replacements in schedule data H is 0 times.

In addition, gold Qjl (When calculating the number of exchanges, only exchanging a mold or adding a new mold is considered as one exchange and is counted as the number of mold exchanges. In other words, a mold exchange that only deletes a mold It is assumed that 4R does not occur.

1 Next, the schedule management device 60 refers to the calculation result of the number of mold replacements, etc., and selects only one schedule data with the least number of mold replacements (step 140). However, if there are multiple schedule data with the same number of mold replacements, the schedule data with the smallest amount of clamp movement will be selected first, and if the conditions for the amount of clamp movement are the same, the schedule data specified by the operator will be selected first. The schedule data with the lowest processing order is selected.

In this system, the clamping positions of the two clamps 37 are changed depending on the size of the workpiece so that the workpiece can be gripped properly at all times (when moving automatically and when moving manually). Therefore, when transferring to schedule data with a different work size, the clamp position of the clamp 37 must be moved.

That is, in the process of step 140, if there is a plurality of data items with the same number of mold replacements, the schedule data with the smallest amount of clamp movement from the current clamp position is selected.

For example, in a schedule data program as shown in FIG. 7, if method (2) is selected, the reference mold is
), the number of mold changes is the same as 0 times for schedule data A, C, E, and H, but if the clamp movement amounts for these data A, C, and ESH are also all the same, then this If the specified addition is specified, the younger data A in the second order is the first
selected as the second processing program. The selected data A is written into a work area for storing a schedule program provided in the schedule management device 60 (step 140). In other words, before the schedule data is sorted, the schedule data before sorting is written in the above work area, and as the sorting is executed, the above work area is sequentially updated with the contents corresponding to the sorting results. It is rewritten.

When the writing to the work area is completed, the schedule management device 60 executes a process of updating the initially set reference mold information with the currently selected schedule data 3 and the mold mold information with the obtained content (
Step 150). In this update process, the contents of the mold information included in the selected schedule data are compared with the contents of the standard mold information, and out of the differences between the two, the standard mold information is only for the turret where the mold is replaced or newly added. Change the mold number inside.

In the case of a schedule program as shown in FIG. 7, the reference mold information in the initial state shown in FIG. 8(a) is rewritten in step 150 as shown in FIG. 8(b). However, in this case, the mold used in schedule data A is included in the standard mold information (the same mold used for the same turret exists in the standard mold information), so this time The created reference mold information is the same as the previous one (
It has not changed from the initial setting (at the time of initial setting).

Next, the schedule management device 60 checks whether all the schedule data has been retrieved, that is, whether all the sorting has been completed (step 160), and continues the above process until this process is completed. Execute repeatedly.

Hereinafter, the subsequent rearrangement processing of the schedule program in FIG. 7 will be sequentially explained according to FIGS. 8(b) to 8(f).

That is, as described above, after the schedule data A is first selected and the reference mold information is updated as shown in FIG. 8(b) (although it has not actually changed), the schedule management device 6o is the remaining schedule data B-H
For each, the number of times the molds are replaced with respect to the reference mold information shown in FIG. 8(b) is calculated again, and the schedule data to be extracted next is selected based on these numbers of times of replacement. In this case, since the number of exchanges is the same as shown above, schedule data C is eventually selected as the second program.

In this case, the schedule data E
5 schedule data H are sequentially selected as the third and fourth programs. During the selection process of these data ESH, the reference mold information does not change for the same reason as mentioned above, and the reference mold information immediately after data H is selected is as shown in FIG. 8(C). Become.

Therefore, in the subsequent step 130, the schedule management device 60 stores the remaining schedule data BSD.
, FSG, the number of times the molds are replaced with respect to the reference mold information shown in FIG. 8(C) is determined again.

In this case as well, the number of mold replacements for each schedule data does not change from what was found earlier, the number of mold replacements for schedule data B is 3, the number of mold replacements for schedule data D is 2, and the number of mold replacements for schedule data F. is 3 times.The number of mold changes for schedule data H is 2.
times.

Therefore, in this case, the schedule data D that has a smaller number of replacements and has a lower processing order is selected first.

As a result of selecting this schedule data D, the new standard mold information changes the mold of 6 let 1.4, as shown in FIG. 8(d).

For the remaining schedule data B, F, and G, the schedule management device 60 again calculates the number of times the molds are replaced with respect to the reference mold information shown in FIG. 8(d).

As a result, the number of mold replacements for schedule data B is 3, the number of mold replacements for schedule data F is 3, and the number of mold replacements for schedule data H is 3, so in this case, the schedule data with the youngest processing order B is selected.

By selecting this schedule data B, new reference mold information is created for turrets 1, 3, and 3, as shown in FIG. 8(e).
50 molds will be changed.

For the remaining schedule data F and G, the schedule management device 60 again calculates the number of mold exchanges with respect to the reference mold information shown in FIG. 8(e).

As a result, the number of mold replacements for schedule data F is 3 times 7, and the number of mold replacements for schedule data H is 4 times, so
In this case, schedule data F with fewer exchanges is selected.

By selecting this schedule data F, new standard mold information is created for turrets 1, 3, and 3, as shown in FIG. 8(f).
4.48.50 molds will be changed.

After this, schedule data H is selected as the last program.

Through such sorting processing, each schedule data is displayed on the display device 62 in the sorted order, as shown in FIG. And the schedule management device 6
The aforementioned work area within 0 has schedule data A-
The order in which H is sorted (A, C, ESHSDSBSF
SG), and the data stored in this work area is stored in a predetermined storage area for storing schedule data created by the schedule management device 60. NC according to the schedule stored in this storage area
The program is sequentially transferred to the NC device 63, and machining is executed according to the NC program.

By performing such rearrangement, the number of stops (7 times) is reduced to 4 times, whereas before the rearrangement shown in Figure 7, it was necessary to stop each time (7 times) to change the mold. I can do it. In other words, after sorting, A-C-E-H
There is no need to change molds in between.

Note that the above operation example mainly shows the case where method ■ is selected, but when method ■ is selected, the method of obtaining the reference mold information in the initial state is to use the current mounting information as is. The only difference is that the subsequent processing is exactly the same as described above.

Next, the operation when performing program sorting based on workpiece thickness according to the flowchart in FIG. 10 will be described.

The program sorting function based on workpiece plate thickness is to divide the schedule data (processing order) into two groups, for example, a thin plate group and a thick plate group. The schedule data is rearranged using the workpiece thickness information in the program as the main parameter.

First, when the operator issues an instruction to execute the program sort function based on sheet thickness via the input device 61 (step 200), the schedule management device 60 sends a message requesting input of the boundary sheet thickness value ds to the display device. 62 and waits for input of the boundary plate thickness value (step 210). The boundary plate thickness value ds is a boundary value for dividing the schedule program into two by plate thickness, and the schedule program divides the boundary plate thickness value ds with the boundary plate thickness value ds as a boundary.
It is roughly divided into those with a thinner plate thickness than s and those with a thicker plate thickness.

When the operator inputs the boundary plate thickness value ds, the schedule management device 60 asks the operator via the display device 62 whether to sort in ascending order or descending order (
Step 220).

In ascending order, the thinner group is the previous group, and in descending order, the thicker group is the first group. Note that regardless of the ascending order or descending order, schedule data having the same plate thickness value as the boundary plate thickness value ds always belongs to the previous group.

When ascending order or descending order is selected, the schedule management device 60
The display device 62 indicates whether or not to execute the program sorting based on the mold in addition to the program sorting based on the board thickness.
(step 230.24)
0).

If program sorting by mold is not executed, the schedule program is roughly divided into groups with thicknesses thinner than the boundary plate thickness value ds and groups with plate thickness thicker than the boundary plate thickness value ds, and then each group Sorting is performed in accordance with plate thickness (steps 250 and 260). That is, in this case, the boundary plate thickness value ds and the plate thickness value become condition parameters for program sorting.

When executing the program sorting by mold, the operator is asked via the display device 62 whether to perform the sorting by method 1 or method 2 (steps 270 and 280), and the contents specified by the operator are displayed. Accordingly, the same sorting process as described above is performed.

In other words, if method ■ is selected in ascending order, the board is divided into two groups with the thinner board first, and a sorting process is performed in which the current mold mounting information is used as the reference mold information in the initial state. (step 290). In addition, if method ■ is selected in ascending order, the group is divided into two groups with the thinner sheet thickness first, and in the initial state, the most used mold in the schedule program is sorted as the reference mold information. Processing is performed (step 300
). In addition, if method I is selected in descending order, the group with the thickest plate thickness is first divided into two, and a sorting process is performed in which the current mold mounting information is used as the reference mold information in the initial state. (step 310). Furthermore, if method ■ is selected in descending order, the group with the thickest plate thickness is first divided into two, and in the initial state, the most used mold 2 in the schedule program is set as the reference mold information. A replacement process is executed (step 300).

Figure 11 shows an example of schedule data edited by an operator using the NC data shown in Figure 5 above, and this schedule data is edited using the sheet thickness sorting function and mold sorting function. The result of sorting is shown in FIG. However, in this case, sorting by plate thickness is performed in ascending order, and the boundary plate thickness value ds
-1 mm, and method (2) is selected in which the current mounting information is used as the reference mold information for sorting by mold.

In addition, the mold mounting information when starting the sorting work is as follows.

T125-Dolo, T12g-DO12 (all others are empty) In this case, since ascending order is specified, the boundary plate thickness value ds
The data with a program name starting with A and having a thinner plate thickness is in an earlier order than the data with a program name starting with B and having a plate thickness thicker than the boundary plate thickness value ds. In this case, since the current mounting information is as described above, the reference mold information in the initial state becomes the above mounting information, and as a result, schedule data A3 having exactly the same mold information as this reference mold information is at the top. become.

In this case, even after schedule data A3 is selected, the reference mold information remains the same as at the time of initial setting.

Therefore, the second data is schedule data A, which has a small number of mold replacements with respect to this standard mold information.
2 is selected. This is because, in this case, the schedule data other than A3 does not overlap with the reference mold information at all, and the schedule data A2 that uses fewer molds, that is, has the least number of replacements, is selected.

As the next program, the remaining schedule data A1 in the group of program names starting with A having a thickness thinner than the boundary plate thickness value ds is selected.

Schedule data 4 selected after the fourth one has a plate thickness thicker than the boundary plate thickness value ds and has a program name starting with B, and the mold information of the last program A1 in the first group is the result. This is the standard mold information at this point.

When checking the number of mold replacements by comparing the standard mold information that matches the mold information of schedule data A1 with the mold information of the remaining schedule data B1 and B2, the number of mold replacements is 0 for schedule data B1. Then, since schedule data B2 has been exchanged 4 times, schedule data B1 is selected first, and finally schedule data B2 is selected.
will be selected.

The result of sorting in this way is shown in FIG.

In this way, this embodiment provides a sorting function based on die and a sorting function based on plate thickness, and automatically creates operation schedules that are roughly divided into two groups based on plate thickness with fewer setup changes. This reduces machine stoppage time, improves production efficiency, and allows the processor to collect and process only small thin sheets at a specific time, which can be used as a countermeasure against noise during unmanned operation at night. It is valid.

In the above embodiment, one boundary plate thickness value was provided and the schedule data was divided into two, but the number of divisions was changed to three.
It may be possible to specify more than one.

[Effects of the Invention] As explained above, according to the present invention, (1) the schedule can be rearranged so that the number of mold setup changes is minimized even when the schedule is randomly created manually; The time the machine stops is shortened and production efficiency is improved. (2) It has a function to automatically write the address of the mold used in the NC data, so when creating the NC program for each workpiece with an automatic programming device. , there is no need for the operator to input the address of the mold to be used into the schedule management device each time. (3) Each workpiece for which the schedule has been input is automatically classified into a thin plate group and a thick plate group using the reference plate 6 thickness as a boundary. Therefore, for example, only the small thin plate work of a worker can be collected and processed at a specific time, and this has excellent effects such as being effective as a noise countermeasure during unmanned operation at night.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing the operation of an embodiment of the present invention, FIG. 2 is a perspective view showing the overall configuration of a turret punch press system to which this invention is applied, FIG. 3 is a perspective view of the turret punch press portion, and FIG. FIG. 4 is a program diagram showing the configuration of the control system of the embodiment, FIG. 5 is a diagram showing an example of the NC program, FIG. 6 is a diagram showing an example of the display screen of the schedule management device, and FIG. 7 is a diagram showing the arrangement Figures 8(a) to 8(f) are diagrams showing changes in standard mold information; Figure 9 is a diagram showing an example of schedule data after rearrangement; FIG. 10 is a flowchart showing the operation of another embodiment of the present invention, FIG. 11 is a diagram showing an example of schedule data 7 before sorting, and FIG. 12 is a diagram showing an example of schedule data after sorting. FIG. 13 is a diagram showing an example of a schedule editing screen. 10... Auto stocker 20... De stack loader 30... Turret punch press 31... Turret disk 40... Unloader 50... Automatic programming device 60... Schedule management device 8

Claims (4)

[Claims] (1) In a turret punch press in which a plurality of different molds are attached to a plurality of turrets according to a plurality of different schedule data for processing a plurality of workpieces to perform various types of punching press processing on the workpieces, the plurality of schedule data In addition to providing mold information indicating how each mold is allocated to each turret, the first step is to set basic mold information for determining the number of mold replacements.
a second step of calculating the number of mold replacements for each schedule data with respect to the basic mold information by comparing the set basic mold information and each mold information for each schedule data; A third step of selectively extracting schedule data with the least number of mold replacements based on the determined number of mold replacements, and comparing mold information included in the selected schedule data with the basic mold information. and a fourth step of updating the basic mold information based on the comparison result, and repeating the second to fourth steps until all selection extraction in the third step is completed. A schedule operation method for a turret punch press, characterized in that the schedule data is repeatedly rearranged in the order of selection and extraction of the third step, and the press working is performed in accordance with the rearranged order. (2) The basic mold information is initially set to the most frequently used mold in each turret, which is determined based on the mold information in the plurality of schedule data.
) Scheduled operation method for turret punch press. (3) The basic mold information is initially set to contents corresponding to the current actual mold mounting state (
1) Scheduled operation method of the turret punch press described above. (4) In a turret punch press in which a plurality of different molds are attached to a plurality of turrets and various types of punching press processing are performed on a workpiece according to a plurality of different schedule data for processing a plurality of workpieces, the plurality of schedule data a setting means for setting a boundary thickness value for dividing the plurality of schedule data according to the thickness of the workpiece, and setting means for setting a boundary thickness value for dividing the plurality of schedule data according to the thickness of the workpiece; A schedule operation device for a turret punch press, comprising: plate thickness dividing means for dividing and rearranging the plurality of schedule data based on a boundary plate thickness value.