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Color-based batching method for automobile coating workshop

A workshop and painting technology, applied in the field of production planning and scheduling of hybrid assembly lines, to achieve the effect of saving workshop area, reducing the number of color switching times, and eliminating construction and operating costs

Active Publication Date: 2019-10-25
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: The present invention provides a color-based batching method for automobile painting workshops, which solves the problem of adjusting the sequence of body-in-white without the need for hardware facilities before the painting workshop

Method used

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  • Color-based batching method for automobile coating workshop
  • Color-based batching method for automobile coating workshop
  • Color-based batching method for automobile coating workshop

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Embodiment

[0094] The present invention adopts C++ language in Microsoft Visual Studio to compile executable programs, and its effect is illustrated through a group of numerical experiments. The sequence parameters in the example include number of vehicles (S), number of body types, and number of colors. Table 1 shows the average results (ie, the number of times of color switching) of 40 randomly generated original sequences under each parameter combination before and after being solved by the algorithm of the present invention. The results show that the ant colony optimization algorithm proposed by the invention can significantly reduce the number of color switching in the original sequence in a short period of time, and has a good effect of batching by color.

[0095] Table 1 The solution effect of ant colony algorithm

[0096]

[0097] In addition, the invention also provides a rolling solution method for the large-scale color batching problem. The idea of ​​the method is to deco...

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Abstract

The invention discloses a color-based batching method for an automobile coating workshop, which is mainly characterized in that the physical position of a white automobile body in a sequence is kept unchanged, color attributes are adjusted among automobile bodies of the same type under the constraint that the original order demand in the sequence is not changed, and the purpose is to minimize theswitching frequency of coating colors in the sequence. The heuristic algorithm and the rolling solving method based on ant colony optimization can quickly and effectively solve the problem of color-based batching of different scales, and significantly reduce the number of times of color switching in an original sequence. Besides, according to the color-based batching method, hardware facilities such as an automatic access system or a linear buffer area do not need to be adopted, and color-based batching is realized by performing order adjustment between the same type of body-in-white, so thatthe occupied area of a workshop can be saved, and high equipment and facility construction and operation costs can be saved.

Description

technical field [0001] The invention belongs to the field of production planning and scheduling of a mixed assembly line, in particular to a method for batching by color in an automobile painting workshop. Background technique [0002] The hybrid assembly line is a flexible production system that simultaneously processes different types of products in a mixed arrangement on one assembly line. In the automobile assembly plant, the vehicles on the hybrid assembly line go through the three workshops of bodywork, painting, and final assembly in sequence to complete processing and assembly. The three plants have different preferences and requirements for product launch sequences. For the painting shop, if two adjacent cars require different colors, the spray gun needs to be cleaned and replaced with the specified color finish paint before spraying the next car. This process will increase the consumption of water and paint, and lead to increased production takt. Therefore, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06N3/00
CPCG06Q10/06312G06Q10/06316G06N3/006
Inventor 孙辉王幼真
Owner SOUTHEAST UNIV
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