JP2014092867A - Processing work schedule creating system and work schedule creating program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To create a work schedule for effectively performing shot-peening treatment on many and plural kinds of objects to be processed (work).SOLUTION: A processing master table 20 stores data for each work including: a series of plural process; time limit; a flag for determining whether the process is a shot-peening treatment on the work or on a test piece; and a flag for determining whether the process requires or not requires consideration on time limit. A scheduler 10 allocates the order of sequence of the process while considering the time limits and flags to create work schedule of the shot-peening treatment.

Description

  The present invention relates to a machining work plan creation system and a work plan creation program, and can create a work plan that can be efficiently machined (for example, shot peening) in consideration of a time limit (described later). It is devised so that it can be done.

  Shot peening is a metal surface treatment method in which a shot material (hard spheres) sprayed from a projection device collides with a workpiece (workpiece) at high speed. When such shot peening is performed, work hardening by plastic deformation, uniform surface stress, application of residual compressive stress, and the like can be performed on the surface of the workpiece. As a result, effects such as improvement of fatigue strength, improvement of stress corrosion cracking characteristics, and improvement of delayed fracture characteristics can be achieved.

In the shot device including the projection device, the shot material collided with the workpiece is collected, and the collected shot material is again sprayed from the projection device toward the workpiece. That is, when one workpiece is shot peened, a large number of each shot material is recycled after being collided with the workpiece and then colliding with the workpiece again.
In addition, when a shot peening process for one workpiece is completed and a shot peening process is performed for another workpiece, a large number of shot materials are circulated.

  When shot peening is performed on a plurality of workpieces, the shot strength decreases. Then, when the quality is below a certain level and proper machining cannot be performed on the workpiece, the equipment is maintained and the shot strength is recovered, and then the shot peening is performed.

By the way, when shot peening is performed on a workpiece that requires extremely high reliability, the usage time of the shot device and the number of workpieces processed by the shot device depend on the specifications of the user who uses the workpiece. There are restrictions on
Such restrictions include the following (1) and (2).

(1) Restriction of usage time of shot equipment
First, shot peening is performed on a test piece of the same material and characteristics as the workpiece, and it is confirmed that there is no problem in the processing quality of the test piece after processing. In other words, it is confirmed that the quality of the test piece after processing has secured a predetermined quality. Items for confirming the processing quality of the test piece after processing include the “warping amount” of the test piece representing the shot strength.
In this way, when it is confirmed that there is no problem in the processing quality of the test piece, a plurality of workpieces are used by using the same shot device for a predetermined time limit (quality assurance period: for example, 7 hours). On the other hand, shot peening can be performed.

When the time limit (quality assurance period) has passed, shot peening is again performed on the test piece of the same material and characteristics as the workpiece.
When there is a problem with the processing quality of the test piece after processing, the processing of the workpiece by the shot device used so far is prohibited.
On the other hand, if there is no problem in the processing quality of the test piece after processing, until the time limit (quality assurance period: 7 hours, for example) from when it was confirmed that there was no problem in the processing quality of the test piece this time Shot peening for a plurality of workpieces using the used shot apparatus is allowed.

  Even when different types of workpieces are used, when checking the processing quality using the same type (same material and characteristics) of the test piece, from the point of confirming that there is no problem in the processing quality of the test piece In the time limit (quality assurance period: 7 hours, for example), shot peening can be performed continuously on different types of workpieces.

(2) Limitation on the number of workpieces to be machined with the shot machine (constraints)
First, shot peening is performed on a test piece of the same material and characteristics as the workpiece, and it is confirmed that there is no problem in the processing quality of the test piece after processing. In other words, it is confirmed that the quality of the test piece after processing has secured a predetermined quality.
When it is confirmed that there is no problem in the processing quality of the test piece in this way, shot peening processing is performed on a predetermined limited number of workpieces (for example, 8 pieces) using the same shot device. Can do.

After processing a limited number of workpieces, shot peening is performed again on a test piece of the same material and characteristics as the workpiece.
When there is a problem with the processing quality of the test piece after processing, the processing of the workpiece by the shot device used so far is prohibited.
On the other hand, if there is no problem in the processing quality of the test piece after processing, after confirming that there is no problem in the processing quality of the test piece this time, a predetermined limited number of workpieces (for example, 8 pieces) are processed. The shot peening process for a plurality of workpieces using the shot apparatus that has been used so far is allowed.

  By the way, when shot peening is actually performed on a large number of types of workpieces, it is desired to create a work plan in order to work efficiently. To create a work plan, a work plan is generally created using an automatic calculation mechanism called a scheduler (see, for example, Patent Document 1).

JP2005-190062

  Although it is possible to create a work plan using the scheduler if it is a normal work, efficient shots are made for many types and multiple types of work under the conditions such as the time limit described above. It was difficult to create a work plan for peening. For this reason, conventionally, there has been no method for creating a work plan for efficiently performing shot peening on a large number of types of workpieces.

  In view of the above-described prior art, the present invention provides a machining work plan creation system and a work plan creation program capable of creating a work plan for efficiently performing a process such as shot peening on a large number of types of workpieces. The purpose is to provide.

The work plan creation system for processing of the present invention that solves the above problems is as follows.
A process master table storing process master data for each workpiece to be processed;
A scheduler for allocating processes in the process master table and creating a work plan for processing;
In the process master data, the type of workpiece, the type of test piece set corresponding to the workpiece, the time limit set corresponding to the workpiece, the delivery date of the workpiece , A series of steps necessary for processing the workpiece are included, and each step is related to processing the workpiece or a test piece is processed A flag indicating whether the process is related to the process, a flag indicating whether the process needs to consider the time limit or a process that does not need to consider the time limit, and the work time are set.
The scheduler has a process selection calculation unit and a process allocation calculation unit,
The process selection calculation unit selects one process from the process master data stored in the process master table,
When the selected process is a process related to processing the workpiece and the process does not need to consider the time limit, the process allocation calculation unit sets the selected process as a work plan. allocation,
The selected process is a process related to processing a workpiece and a process that needs to consider the time limit, and when the time for working the process is within the time limit, the selected process is performed. Assign processes to work plans,
If the selected process is a process related to processing the workpiece and the time required to consider the time limit, and the time for working on the process is not within the time limit, the selected process Is not assigned to the work plan,
If the selected process is a process related to processing a test piece and is not the first process among processes related to processing a test piece, the selected process is assigned to a work plan;
The selected process is a process related to processing a test piece, and is the first process among processes related to processing a test piece, and the time for operating the process is not within the time limit. Assigns the selected process to the work plan,
The selected process is a process related to processing a test piece, and is the first process among processes related to processing a test piece, and the time for operating the process is within the time limit. The method is characterized in that all of the processes related to processing the test piece are skipped without assigning the selected process to the work plan.

The processing work planning system of the present invention is
The process selection calculator is
Among the plurality of processes of the process master data for each workpiece stored in the process master table, when the time required to operate each process that can be selected exceeds the time limit, Select the process of the workpiece,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When the process is not necessary, select the process of the workpiece that has the strictest delivery date,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. If there is a part that has a delivery date that takes precedence over the part in the process that you want to select, and the delivery date breaks when the process that you want to select is performed first, the process of the workpiece that has the strictest delivery date Select
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When there is no part that is a necessary process and whose delivery date has priority over the part of the process to be selected, or a plurality of processes of the process master data for each workpiece stored in the process master table Of these, the time to work on each process that can be selected is within the time limit, and it is necessary to consider the time limit, and the parts whose delivery date has priority over the parts of the process to be selected are If there is no breakage of the delivery date even if the process to be selected is carried out first, and there is no work piece for which delivery is prioritized, the remaining time until the time limit is the longest. Become a combination of steps to calculate the most delivery selects stringent workpiece steps from the calculated combination,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When there is no part that is a necessary process and whose delivery date has priority over the part of the process to be selected, or a plurality of processes of the process master data for each workpiece stored in the process master table Of these, the time to work on each process that can be selected is within the time limit, and it is necessary to consider the time limit, and the parts whose delivery date has priority over the parts of the process to be selected are If there are parts to be processed that do not break even if the process to be selected is carried out first, and there is a part to be processed that has a priority on delivery, And selects the process.

In addition, the machining work plan creation program of the present invention is
As process master data for each workpiece to be processed, the type of workpiece, the type of test piece set corresponding to the workpiece, the time limit set corresponding to the workpiece, The delivery date of the workpiece, a series of steps necessary for machining the workpiece, and the steps involved in machining the workpiece or the steps involved in machining the test piece A flag indicating whether there is a process, a flag indicating whether it is a process that needs to consider the time limit, or a process that does not need to consider the time limit, a process master table that stores work time,
A scheduler for allocating processes in the process master table and creating a work plan for processing;
A machining work plan creation program for use in a system configured with
Select one process from the process master data stored in the process master table,
If the selected process is a process related to processing the workpiece and it is not necessary to consider the time limit, the selected process is assigned to a work plan,
The selected process is a process related to processing a workpiece and a process that needs to consider the time limit, and when the time for working the process is within the time limit, the selected process is performed. Assign processes to work plans,
If the selected process is a process related to processing the workpiece and the time required to consider the time limit, and the time for working on the process is not within the time limit, the selected process Is not assigned to the work plan,
If the selected process is a process related to processing a test piece and is not the first process among processes related to processing a test piece, the selected process is assigned to a work plan;
The selected process is a process related to processing a test piece, and is the first process among processes related to processing a test piece, and the time for operating the process is not within the time limit. Assigns the selected process to the work plan,
The selected process is a process related to processing a test piece, and is the first process among processes related to processing a test piece, and the time for operating the process is within the time limit. The method is characterized in that all of the steps related to processing the test piece are skipped without assigning the selected step to the work plan.

In addition, the machining work plan creation program of the present invention is
When selecting one process from the process master data stored in the process master table,
Among the plurality of processes of the process master data for each workpiece stored in the process master table, when the time required to operate each process that can be selected exceeds the time limit, Select the process of the workpiece,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When the process is not necessary, select the process of the workpiece that has the strictest delivery date,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. If there is a part that has a delivery date that takes precedence over the part in the process that you want to select, and the delivery date breaks when the process that you want to select is performed first, the process of the workpiece that has the strictest delivery date Select
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When there is no part that is a necessary process and whose delivery date has priority over the part of the process to be selected, or a plurality of processes of the process master data for each workpiece stored in the process master table Of these, the time to work on each process that can be selected is within the time limit, and it is necessary to consider the time limit, and the parts whose delivery date has priority over the parts of the process to be selected are If there is no breakage of the delivery date even if the process to be selected is carried out first, and there is no work piece for which delivery is prioritized, the remaining time until the time limit is the longest. Become a combination of steps to calculate the most delivery selects stringent workpiece steps from the calculated combination,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When there is no part that is a necessary process and whose delivery date has priority over the part of the process to be selected, or a plurality of processes of the process master data for each workpiece stored in the process master table Of these, the time to work on each process that can be selected is within the time limit, and it is necessary to consider the time limit, and the parts whose delivery date has priority over the parts of the process to be selected are If there are parts to be processed that do not break even if the process to be selected is carried out first, and there is a part to be processed that has a priority on delivery, And selects the process.

  According to the present invention, it is a process related to a time limit, a process related to processing a workpiece (workpiece) (for example, shot peening), or a process related to a process of processing a test piece (for example, shot peening). In order to create a work plan for processing (for example, shot peening processing) considering whether it is a process that needs to consider the time limit or a process that does not need to consider the time limit, An operation plan for efficiently processing (for example, shot peening) on a plurality of types of workpieces (workpieces) can be created.

The block diagram which shows the work plan preparation system of the shot peening process which concerns on the Example of this invention. The data figure which shows the process master data of the workpiece | work X. The data figure which shows the process master data of the workpiece | work Y. The data figure which shows the process master data of the workpiece | work Z. The flowchart which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The data figure which shows the allocation operation | movement of a process. The flowchart which shows the selection operation | movement of a process.

  Hereinafter, the present invention will be described in detail based on examples applied to shot peening.

[Example 1]
A work plan creation system for shot peening according to an embodiment will be described with reference to FIG.

As shown in FIG. 1, a work plan creation system 1 for shot peening processing includes a scheduler 10, a process master table 20, and an output device 30.
The scheduler 10 is constructed as an information processing apparatus that performs arithmetic processing described later in cooperation with a work plan creation program (software) for shot peening and hardware resources (computer). The process master table 20 is constituted by a storage device or the like, and the output device 30 is constituted by a printer or a screen display device.

  The scheduler 10 includes a process selection calculation unit 11 and a process allocation calculation unit 12.

The process master table 20 stores process master data of each workpiece (workpiece) in advance. For example, FIG. 2 shows process master data for the workpiece X, FIG. 3 shows process master data for the workpiece Y, and FIG. 4 shows process master data for the workpiece Z.
The workpieces X, Y, and Z are different types of workpieces.

Here, the contents of the process master data will be described with reference to FIG.
In the process master data, the test piece used for testing whether the type of the workpiece is the workpiece X and whether or not the shot material for shot peening the workpiece X has a predetermined quality is the test piece TPa. (The type of the test piece set corresponding to the workpiece X is the test piece TPa), the time limit set for the workpiece X is 7H (7 hours), and the delivery date of the workpiece X is It is a day and a series of a plurality of steps necessary for shot peening the workpiece X is included.

  The “time limit” means that the quality of the test piece after the shot peening process using the shot material has secured a predetermined quality, in other words, the shot piece has been shot peened. This is the time (period) that is started when the step of confirming that the quality of the shot material ensures a predetermined quality is completed. Within this time limit, shot peening can be performed (allowed) on the workpiece using a quality-checked shot material.

A series of a plurality of processes are arranged in order of work procedure. In the example of FIG. 2, step 1 to step 9 are arranged in the order of the work procedure. Each process is a process which performs the following operation | work, for example.
-Process 1 ... The work process which conveys a workpiece | work to a shot peening apparatus.
-Process 2 ... The work process which attaches a test piece to a shot peening apparatus.
-Process 3 ... The work process which performs shot peening processing with respect to a test piece. In this step, it is confirmed whether or not the quality of the test piece after the shot peening process has secured a predetermined quality.
Step 4: A work step of removing the shot peened test piece from the shot peening apparatus and cleaning it up.
-Process 5 ... The work process which attaches a workpiece | work to a shot peening apparatus.
Process 6: Work process for setting information such as shot time in the shot peening apparatus.
Step 7: Work step for performing shot peening on the workpiece.
Step 8: Work step for removing the shot peened workpiece from the shot peening apparatus.
-Process 9 ... The work process which clears the removed workpiece | work. The cleaned work is conveyed to the next process, for example.

  In each of the steps 1 to 9, a flag indicating the type of the step, a flag relating to a time limit, work time, and equipment used (a shot peening device to be used) are set as necessary.

As a flag indicating the type of process, there are a flag “0” and a flag “1”.
The flag “0” is a flag indicating that the process is related to the shot peening process for the workpiece, and is set in process 1, process 5 to process 9.
The flag “1” is a flag indicating that the process is a process related to shot peening of the test piece, and is set in process 2 to process 4.

As a flag related to the time limit, a flag “occurrence” indicating a process in which the time limit is started, and a process capable of proceeding with work related to shot peening processing on condition that the time is within the time limit (considering time limit There is a flag “necessary” indicating that the process is necessary. The process in which the flag “necessary” is not set is a process in which it is not necessary to consider the time limit.
The flag “occurrence” is set in step 3, and the flag “required” is set in steps 5 to 7.

Further, the working time 1H (1 hour) is set in the steps 1 to 9.
Furthermore, in step 2 to step 8, it is set that the equipment used for shot peening (the shot peening apparatus to be used) is the equipment used X.

  The process master data of the work Y shown in FIG. 3 and the process master data of the work Z shown in FIG. 4 also show the same data contents as the process master data of the work X shown in FIG.

  Next, the calculation operation of the work plan creation system 1 for shot peening will be described with reference to FIG.

The scheduler 10 determines whether or not all the processes have been assigned to the work plan (step S1).
In step 1, when all the processes are not assigned to the work plan, the process selection calculation unit 11 of the scheduler 10 stores the process master data of each work stored in the process master table 20. Then, one process that can be operated is selected (step S2). This selection method will be described later with reference to FIG.
In step S1, when all the processes have been assigned to the work plan, the calculation operation is terminated.

  When one process that can be operated is selected, the process assignment calculation unit 12 of the scheduler 10 performs the following calculation process of steps S3 to S11.

  First, it is determined whether the selected process is a process related to the shot peening process for the workpiece or a process related to the shot peening process for the test piece (step S3). This determination is made based on whether the flag indicating the process type is “0” or “1”.

  When the selected process is a process related to the shot peening process of the workpiece, it is determined whether or not the process is a process that needs to consider the time limit (step S4). Whether or not it is necessary to consider the time limit is determined by whether or not the flag related to the time limit is “necessary”.

  In step S4, when the process is a process that does not need to consider the time limit, the process is assigned to the work plan (step S5).

  In step S4, if the process is a process that needs to consider the time limit, the time for allocating the process is shot peening for a test piece of the same material and characteristics as the workpiece of the process. It is then determined whether or not it is within the time limit already obtained (step S6).

In step S6, when the time for allocating the process is within the time limit, the process is allocated to the work plan (step S5).
In step S6, when the time for allocating the process is not within the time limit, the process returns to the process related to shot peening (step 2) without allocating the process to the work plan (step S7).

  In step S3, when the selected process is a process related to shot peening of the test piece, which part of the series of processes 2 to 4 related to the test piece is the process. Judgment is made (step S8).

  In step S8, when the process is the middle or the last process (process 3 or process 4) among the series of processes 2 to 4 related to the test piece, the process (process 3 or 4) related to the test piece. Step 4) is assigned to the work plan (step S9).

  In step S8, when the process is the first process (process 2) in the series of processes 2 to 4 related to the test piece, the time for allocating the process is the same material and the same as the test piece. It is determined whether or not it is within the time limit already obtained by performing shot peening on the characteristic test piece (step S10).

In step S10, when the time for allocating the process is not within the time limit, the process (process 2) related to the test piece is allocated to the work plan (step S9).
In step S10, when the time for allocating the process is within the time limit, all the processes related to the test piece (process 2 to process 4) are skipped and the process proceeds to the next process (step S11).

Next, with reference to FIGS. 6 to 33, a procedure for assigning processes for specific examples by the work plan creation system 1 for shot peening will be described. This specific example shows a procedure for creating a work plan for shot peening processing by optimally allocating each process of three types of workpieces X, Y, and Z.
6 to 33, the process with the gray background color is the process that has already been assigned as the work plan (allocation is completed), and the process with the right arrow is the work in the procedure corresponding to each figure. This is the process assigned to the plan.

FIG. 6 shows an initial state in which no process is assigned to the work plan.
As shown in FIG. 7, process 1 of work X is assigned to the work plan. The state of FIG. 7 is a state when 1 hour has elapsed from the initial state of FIG.

As shown in FIG. 8, the process 2 of the work X is assigned to the work plan. In step 2, the test piece TPa is attached to the shot peening apparatus.
The state of FIG. 8 is a state when 2 hours have passed since the initial state.

As shown in FIG. 9, process 3 of work X is assigned to the work plan. In step 3, the test piece TPa is shot peened, and it is confirmed whether or not the quality of the test piece TPa after the shot peening has a predetermined quality. When it is confirmed that the quality of the test piece TPa is secured in advance, a time limit (7 hours) obtained by shot peening the test piece TPa is started.
The state of FIG. 9 is a state when 3 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 7 hours.

  As shown in FIG. 10, the process 4 of the work X is assigned to the work plan. The state of FIG. 10 is a state when 4 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 6 hours.

As shown in FIG. 11, the process 5 of the work X is assigned to the work plan. The process 5 is a process that needs to consider the time limit. However, when the operation of the process 5 is started, the remaining time of the time limit obtained by shot peening the test piece TPa is 6 hours. There is no.
The state of FIG. 11 is a state in which the work of step 5 is completed, and is a state when 5 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 5 hours. It is.

As shown in FIG. 12, the process 6 of the workpiece X is assigned to the work plan. The process 6 is a process that needs to consider the time limit. However, when the operation of the process 6 is started, the remaining time of the time limit obtained by shot peening the test piece TPa is 5 hours. There is no.
The state of FIG. 12 is a state in which the operation of step 6 is completed, and is a state when 6 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 4 hours. It is.

As shown in FIG. 13, process 7 of work X is assigned to the work plan. The process 7 is a process that needs to consider the time limit. However, when the work of the process 7 is started, the remaining time of the time limit obtained by shot peening the test piece TPa is 4 hours. There is no.
The state of FIG. 13 is a state in which the work in step 7 is completed, and is a state when 7 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 3 hours. It is.

  As shown in FIG. 14, the process 8 of the work X is assigned to the work plan. The state of FIG. 14 is a state when 8 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 2 hours.

  As shown in FIG. 15, process 1 of work Y is assigned to the work plan. The state of FIG. 15 is a state when 9 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 1 hour.

As shown in FIG. 16, the process 5 of the workpiece Y is assigned to the work plan. When the work of step 5 is started, the remaining time of the time limit obtained by shot peening the test piece TPa is 1 hour, so the steps 2 to 4 relating to the test piece TPa of the workpiece Y are skipped, The process proceeds to the process 5 of the work Y.
Process 5 is a process in which the time limit needs to be considered. However, when the operation of process 5 is started, the remaining time of the time limit obtained by shot peening the test piece TPa is 1 hour. There is no.
The state of FIG. 16 is a state in which the work of the process 5 of the workpiece Y is completed, and is a state when 10 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa. Is 0 hours.

As shown in FIG. 17, the process 2 of the workpiece Y is assigned to the work plan. In step 2, a new test piece TPa is attached to the shot peening apparatus.
The state of FIG. 17 is a state when 11 hours have elapsed from the initial state.

As shown in FIG. 18, the process 3 of the workpiece Y is assigned to the work plan. In step 3, a new test piece TPa is shot peened, and it is confirmed whether or not the quality of the test piece TPa after the shot peening has a predetermined quality. When it is confirmed that the quality of the test piece TPa is secured in advance, a time limit (7 hours) obtained by shot peening the test piece TPa is started.
The state of FIG. 18 is a state when 12 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 7 hours.

  As shown in FIG. 19, the process 4 of the workpiece Y is assigned to the work plan. The state of FIG. 19 is a state when 13 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 6 hours.

As shown in FIG. 20, the process 6 of the workpiece Y is assigned to the work plan. The process 6 is a process that needs to consider the time limit. However, when the operation of the process 6 is started, the remaining time of the time limit obtained by shot peening the test piece TPa is 6 hours. There is no.
The state of FIG. 20 is a state in which the operation of step 6 is completed, and is a state when 14 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 5 hours. It is.

As shown in FIG. 21, the process 7 of the workpiece Y is assigned to the work plan. The process 7 is a process that needs to consider the time limit. However, when the operation of the process 7 is started, the remaining time of the time limit obtained by shot peening the test piece TPa is 5 hours. There is no.
The state of FIG. 21 is a state in which the work of step 7 is completed, and is a state when 15 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 4 hours. It is.

  As shown in FIG. 22, the process 8 of the workpiece Y is assigned to the work plan. The state of FIG. 22 is a state when 16 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 3 hours.

  As shown in FIG. 23, the process 1 of the workpiece Z is assigned to the work plan. The state of FIG. 23 is a state when 17 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 2 hours.

As shown in FIG. 24, the process 2 of the workpiece Z is assigned to the work plan. In step 2, the test piece TPb is attached to the shot peening apparatus.
The state of FIG. 24 is a state when 18 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPa is 1 hour.

As shown in FIG. 25, the process 3 of the workpiece Z is assigned to the work plan. In step 3, the test piece TPb is shot peened, and it is confirmed whether or not the quality of the test piece TPb after the shot peening has a predetermined quality. When it is confirmed that the quality of the test piece TPb has a predetermined quality, a time limit (7 hours) obtained by shot peening the test piece TPb starts.
The state of FIG. 25 is a state when 19 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPb is 7 hours.

  As shown in FIG. 26, the process 4 of the workpiece Z is assigned to the work plan. The state of FIG. 26 is a state when 20 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPb is 6 hours.

As shown in FIG. 27, the process 5 of the workpiece Z is assigned to the work plan. Process 5 is a process that needs to consider the time limit. However, when the work of process 5 is started, the remaining time of the time limit obtained by shot peening the test piece TPb is 6 hours. There is no.
The state of FIG. 27 is a state in which the work of step 5 is completed, and is a state when 21 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPb is 5 hours. It is.

As shown in FIG. 28, the process 6 of the workpiece Z is assigned to the work plan. The process 6 is a process that needs to consider the time limit. However, when the operation of the process 6 is started, the remaining time of the time limit obtained by shot peening the test piece TPb is 5 hours. There is no.
The state of FIG. 28 is a state in which the operation of step 6 is completed, and is a state when 22 hours have elapsed from the initial state. The remaining time of the time limit obtained by shot peening the test piece TPb is 4 hours. It is.

As shown in FIG. 29, the process 7 of the workpiece Z is assigned to the work plan. The process 7 is a process that needs to consider the time limit. However, when the operation of the process 7 is started, the remaining time of the time limit obtained by shot peening the test piece TPb is 4 hours. There is no.
The state of FIG. 29 is a state in which the work of step 7 is completed, and is a state when 23 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPb is 3 hours. It is.

  As shown in FIG. 30, the process 8 of the workpiece Z is assigned to the work plan. The state of FIG. 30 is a state when 24 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPb is 2 hours.

  As shown in FIG. 31, the process 9 of the workpiece Z is assigned to the work plan. The state of FIG. 31 is a state when 25 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPb is 1 hour.

  As shown in FIG. 32, the process 9 of the work X is assigned to the work plan. The state of FIG. 32 is a state when 26 hours have elapsed from the initial state, and the remaining time of the time limit obtained by shot peening the test piece TPb is 0 hour.

  As shown in FIG. 33, the process 9 of the workpiece Y is assigned to the work plan. The state shown in FIG. 33 is a state when 27 hours have elapsed from the initial state.

  As described above, when all processes are assigned to the work plan, the assigned work plan is displayed on the output device 30 or printed out.

Next, the process selection operation performed in step S2 of FIG. 5, that is, the operation of selecting one process that can be performed from each process master data of each workpiece stored in the process master table 20, is shown in FIG. It demonstrates based on the flowchart to show.
The process selection operation performed by the process selection calculation unit 11 of the scheduler 10 is a process that can be selected (as long as the delivery date of each work is not exceeded, which is not assigned to the work plan yet and is the most In order to obtain a time limit, the workpiece process in which the test piece having the same material and characteristics of the test piece subjected to shot peening is set to work continuously.
The procedure is shown in FIG.

First, it is determined whether or not the time limit obtained by performing shot peening on any of the test pieces remains (step S51).
In step S51, when there is no remaining time limit obtained by performing shot peening on any of the test pieces, a work process with the strictest delivery date is selected (step S52).

  If the time limit obtained by shot peening any test piece remains in step S51, there is a work that needs to consider the time limit obtained by shot peening the test piece. Is determined (step S53).

  In step S53, if there is no work that needs to take into account the time limit obtained by shot peening the test piece, the work process with the strictest delivery date is selected (step S52).

  In step S53, when there is a work that needs to take into account the time limit obtained by shot peening the test piece, it is necessary to consider the time limit obtained by shot peening the test piece. It is determined whether or not there is a work whose delivery date has priority over the work (step S54).

  In step S54, when there is a work whose delivery date has priority over a work that needs to consider the time limit obtained by shot peening the test piece, the restriction obtained by shot peening the test piece. It is determined whether or not the delivery date is broken even if the work requiring time consideration is performed first (step S55).

  In step S55, if the delivery date is broken when the work that needs to take into account the time limit obtained by shot peening the test piece is broken first, the process of the work with the strictest delivery time is selected (step S52). .

  In step S54, when there is no work whose delivery date has priority over a work that needs to take into account the time limit obtained by shot peening the test piece, or in step S55, the test piece is shot peened. If the deadline does not break even if the work that needs to take into account the time limit obtained in advance is performed, for each work that needs to take into account the time limit obtained by shot peening the test piece, The completion time of the process requiring the time limit is estimated (step S56).

  Then, it is determined whether or not there is a workpiece whose delivery date is given priority among the workpieces that need to consider the time limit obtained by shot peening the test piece (step S57).

  In step S57, if there is a work for which delivery is prioritized, a work process with the most severe delivery is selected from among the work that needs to consider the time limit obtained by shot peening the test piece. (Step S58).

    In step S57, when there is no work for which the delivery date is given priority, a combination of workpieces having the shortest remaining period until the time limit is calculated (step S59), and the work with the strictest delivery date among the calculated combinations is calculated. A process is selected (step S60).

[Example 2]
In the first embodiment, the “time limit” is used as the use restriction of the shot material. However, the “restricted number” may be used instead of s.

Note that the present invention is not limited to shot peening, and can be applied to all types of equipment that cannot be calibrated or replaced.
The period until calibration and replacement corresponds to the time limit, and the material targeted by the equipment corresponds to the type of test piece.

For example, there are the following examples.
(1) Automatic welding As welding continues, the electrodes gradually wear, and the quality changes. Therefore, it is necessary to periodically check the quality by wearing or replacing the electrode. The test piece will be prepared according to the base material to be applied.
(2) Laser welding If the output changes from the rating due to deterioration of the equipment, the quality will be affected, so periodic calibration is required. The test piece will be prepared according to the base material to be applied.

DESCRIPTION OF SYMBOLS 1 Work plan creation system of shot peening process 10 Scheduler 11 Process selection calculating part 12 Process allocation calculating part 20 Process master table 30 Output device

Claims (4)

A process master table storing process master data for each workpiece to be processed;
A scheduler for allocating processes in the process master table and creating a work plan for processing;
In the process master data, the type of workpiece, the type of test piece set corresponding to the workpiece, the time limit set corresponding to the workpiece, the delivery date of the workpiece , A series of steps necessary for processing the workpiece are included, and each step is related to processing the workpiece or a test piece is processed A flag indicating whether the process is related to the process, a flag indicating whether the process needs to consider the time limit or a process that does not need to consider the time limit, and the work time are set.
The scheduler has a process selection calculation unit and a process allocation calculation unit,
The process selection calculation unit selects one process from the process master data stored in the process master table,
When the selected process is a process related to processing the workpiece and the process does not need to consider the time limit, the process allocation calculation unit sets the selected process as a work plan. allocation,
The selected process is a process related to processing a workpiece and a process that needs to consider the time limit, and when the time for working the process is within the time limit, the selected process is performed. Assign processes to work plans,
If the selected process is a process related to processing the workpiece and the time required to consider the time limit, and the time for working on the process is not within the time limit, the selected process Is not assigned to the work plan,
If the selected process is a process related to processing a test piece and is not the first process among processes related to processing a test piece, the selected process is assigned to a work plan;
The selected process is a process related to processing a test piece, and is the first process among processes related to processing a test piece, and the time for operating the process is not within the time limit. Assigns the selected process to the work plan,
The selected process is a process related to processing a test piece, and is the first process among processes related to processing a test piece, and the time for operating the process is within the time limit. To skip all the processes involved in processing the test piece without assigning the selected process to the work plan,
A working plan creation system for machining. In the processing work planning system of claim 1,
The process selection calculator is
Among the plurality of processes of the process master data for each workpiece stored in the process master table, when the time required to operate each process that can be selected exceeds the time limit, Select the process of the workpiece,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When the process is not necessary, select the process of the workpiece that has the strictest delivery date,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. If there is a part that has a delivery date that takes precedence over the part in the process that you want to select, and the delivery date breaks when the process that you want to select is performed first, the process of the workpiece that has the strictest delivery date Select
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When there is no part that is a necessary process and whose delivery date has priority over the part of the process to be selected, or a plurality of processes of the process master data for each workpiece stored in the process master table Of these, the time to work on each process that can be selected is within the time limit, and it is necessary to consider the time limit, and the parts whose delivery date has priority over the parts of the process to be selected are If there is no breakage of the delivery date even if the process to be selected is carried out first, and there is no work piece for which delivery is prioritized, the remaining time until the time limit is the longest. Become a combination of steps to calculate the most delivery selects stringent workpiece steps from the calculated combination,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When there is no part that is a necessary process and whose delivery date has priority over the part of the process to be selected, or a plurality of processes of the process master data for each workpiece stored in the process master table Of these, the time to work on each process that can be selected is within the time limit, and it is necessary to consider the time limit, and the parts whose delivery date has priority over the parts of the process to be selected are If there are parts to be processed that do not break even if the process to be selected is carried out first, and there is a part to be processed that has a priority on delivery, To select a process,
A working plan creation system for machining. As process master data for each workpiece to be processed, the type of workpiece, the type of test piece set corresponding to the workpiece, the time limit set corresponding to the workpiece, The delivery date of the workpiece, a series of steps necessary for machining the workpiece, and the steps involved in machining the workpiece or the steps involved in machining the test piece A flag indicating whether there is a process, a flag indicating whether it is a process that needs to consider the time limit, or a process that does not need to consider the time limit, a process master table that stores work time,
A scheduler for allocating processes in the process master table and creating a work plan for processing;
A machining work plan creation program for use in a system configured with
Select one process from the process master data stored in the process master table,
If the selected process is a process related to processing the workpiece and it is not necessary to consider the time limit, the selected process is assigned to a work plan,
The selected process is a process related to processing a workpiece and a process that needs to consider the time limit, and when the time for working the process is within the time limit, the selected process is performed. Assign processes to work plans,
If the selected process is a process related to processing the workpiece and the time required to consider the time limit, and the time for working on the process is not within the time limit, the selected process Is not assigned to the work plan,
If the selected process is a process related to processing a test piece and is not the first process among processes related to processing a test piece, the selected process is assigned to a work plan;
The selected process is a process related to processing a test piece, and is the first process among processes related to processing a test piece, and the time for operating the process is not within the time limit. Assigns the selected process to the work plan,
The selected process is a process related to processing a test piece, and is the first process among processes related to processing a test piece, and the time for operating the process is within the time limit. To skip all the processes involved in processing the test piece without assigning the selected process to the work plan,
A machining work plan creation program characterized by that. In claim 3,
When selecting one process from the process master data stored in the process master table,
Among the plurality of processes of the process master data for each workpiece stored in the process master table, when the time required to operate each process that can be selected exceeds the time limit, Select the process of the workpiece,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When the process is not necessary, select the process of the workpiece that has the strictest delivery date,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. If there is a part that has a delivery date that takes precedence over the part in the process that you want to select, and the delivery date breaks when the process that you want to select is performed first, the process of the workpiece that has the strictest delivery date Select
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When there is no part that is a necessary process and whose delivery date has priority over the part of the process to be selected, or a plurality of processes of the process master data for each workpiece stored in the process master table Of these, the time to work on each process that can be selected is within the time limit, and it is necessary to consider the time limit, and the parts whose delivery date has priority over the parts of the process to be selected are If there is no breakage of the delivery date even if the process to be selected is carried out first, and there is no work piece for which delivery is prioritized, the remaining time until the time limit is the longest. Become a combination of steps to calculate the most delivery selects stringent workpiece steps from the calculated combination,
Of the plurality of processes of the process master data stored in the process master table, the time for working each process that can be selected is within the time limit, and the time limit is considered. When there is no part that is a necessary process and whose delivery date has priority over the part of the process to be selected, or a plurality of processes of the process master data for each workpiece stored in the process master table Of these, the time to work on each process that can be selected is within the time limit, and it is necessary to consider the time limit, and the parts whose delivery date has priority over the parts of the process to be selected are If there are parts to be processed that do not break even if the process to be selected is carried out first, and there is a part to be processed that has a priority on delivery, To select a process,
A machining work plan creation program characterized by that.

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