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Automatic scheduling method and system for non-standard manufacturing process

A manufacturing process and automatic arrangement technology, applied in the field of non-standard parts manufacturing, can solve the problems of improving the full utilization of production equipment, low production planning efficiency, unfavorable production efficiency, etc., and achieve the effect of reasonable production planning

Pending Publication Date: 2020-02-18
无锡功恒精密机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the current production arrangement process of non-standard manufacturing can no longer meet the needs of actual production. The production plan arranged is inefficient, and the utilization rate of stations is low, which is not conducive to the improvement of production efficiency and the full utilization of production equipment.

Method used

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  • Automatic scheduling method and system for non-standard manufacturing process
  • Automatic scheduling method and system for non-standard manufacturing process
  • Automatic scheduling method and system for non-standard manufacturing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] figure 1 It is the flow chart of embodiment 1. Such as figure 1 As shown, Embodiment 1 is an automatic scheduling method for non-standard manufacturing processes, specifically including:

[0041] S101. Generate a task list. The task list includes the machining sequence of multiple parts and the machining operation of each part.

[0042] S102. Select a scheduling strategy. The scheduling strategy in Embodiment 1 is the earliest start strategy. After each station finishes processing the last part, there will be free time, and the station with free time can plan a new start time. The earliest start strategy is to select the workstation that can perform this process for each process, sort the selectable workstations forward according to the free time, and select the workstation with the earliest planned start time.

[0043] S103. The nth part starts to process. n=1,2,3,...,N. The initial value of n is 1.

[0044] S104. The mth process starts. m=1,2,3,...,M. The i...

Embodiment 2

[0051] figure 2 It is the flowchart of embodiment 2. Such as figure 2 As shown, the automatic scheduling method for non-standard manufacturing process in Embodiment 2 specifically includes:

[0052] S201. Generate a task list. The task list includes the machining sequence of multiple parts and the machining operation of each part.

[0053] S202. Select a scheduling strategy. The scheduling strategy in embodiment 2 is the latest start strategy. Delivery days vary for each order. The latest start strategy is to sort in reverse according to the delivery date of the order, that is, the delivery date of the parts in the order. The part with the latest delivery time is the first in the task list, but it needs to be arranged later when selecting a station . When selecting a processing station that can perform this process for each process, the selectable stations are reversely sorted according to the earliest free time, and the station with the latest planned start time is s...

Embodiment 3

[0062] Steps S301 to S309 in Embodiment 3 are the same as Steps S101 to S109 in Embodiment 1, and further, Step S300 is also included before Step 301 .

[0063] S300. Task scheduling. In the task scheduling step, all parts in all orders are sorted according to weights, and the processing sequence of multiple parts is determined. Weights can include part lead times and machining priorities. It can also be other factors that need to be considered in production.

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Abstract

The invention relates to an automatic scheduling method and system for a non-standard manufacturing process. The scheduling method comprises the steps of generating a task list; selecting a schedulingstrategy; the nth part starts to be machined; wherein the initial value of n is 1; the mth process is started; wherein the initial value of m is 1; inquiring a station where the mth process can be carried out; if the scheduling strategy is the latest starting strategy, in the stations where the mth process can be carried out, the station with the latest planned starting working time is selected,and the mth process is carried out on the selected station; if the scheduling strategy is the earliest starting strategy, the station with the earliest planned starting working time is selected from the stations where the mth process can be carried out, and the mth process is carried out on the selected station; determining the end time of the mth process according to the man-hour of the mth process; and the process is circulated until all parts are machined. According to the method, the production plan is arranged by adopting more subdivided process time and is closer to the real production time, so that the production plan is more reasonable.

Description

technical field [0001] The invention relates to the field of manufacturing non-standard parts, in particular to an automatic scheduling method and system for non-standard manufacturing processes. Background technique [0002] In the prior art, the production plan of non-standard parts is generally arranged according to the number of parts and the processing time per unit of parts. However, in the process of arranging the production plan of non-standard manufacturing, not only the order of orders, the type and number of parts need to be considered, but also the processing technology and processing time of each part, combined with the existing station resources On the basis of the working time of each part and the working time of the station, the tasks are subdivided, sorted, time calculated, and resources are redistributed for each part, and the production plan is arranged reasonably. Therefore, the current production arrangement process of non-standard manufacturing can no ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/04
CPCG06Q10/06316G06Q50/04Y02P90/30
Inventor 张文刚张兵刘福利
Owner 无锡功恒精密机械制造有限公司
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