Assembly unit division method based on assembly relationship grading

A technology of assembly relationship and assembly unit, applied in geometric CAD, computer-aided design, calculation, etc., can solve the problems of low engineering application value, low degree of automation, lack of versatility, etc., and achieve easy computer language, high degree of automation, highly feasible effect

Active Publication Date: 2020-03-17
LIUZHOU WULING MOTORS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The assembly unit division method obtained through the application of the clustering method has the advantages of good versatility, but at the same time, the result of the division of the assembly unit is not pertinent, and the engineering application value is not high
The disadvantage of the process information division method is that the process information in different assemblies is not the same, lacks versatility, and has low reference value for other products; at the same time, there is also the problem of low automation
Although the method of dividing assembly units using graph and tree structure theory simplifies the expression form of assembly, it is difficult to convert it into computer language due to the characteristics of graph and tree structure, so the degree of automation is not high

Method used

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  • Assembly unit division method based on assembly relationship grading
  • Assembly unit division method based on assembly relationship grading
  • Assembly unit division method based on assembly relationship grading

Examples

Experimental program
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Effect test

no. 1 example

[0064] Embodiment 1 provided by the present invention is an embodiment of a method for dividing assembly units based on the hierarchical assembly relationship provided by the present invention, such as figure 2 Shown is a flow chart of an embodiment of an assembly unit division method based on assembly relationship hierarchy provided by the present invention. Specifically, the method of this embodiment includes:

[0065] Step 1: Obtain the assembly relationship value table of the assembly, and determine the hierarchical relationship value between any two functional parts according to the assembly relationship and value of each functional part in the assembly relationship value table.

[0066] Specifically, in step 1, according to the Floyd (Floyd) algorithm to find from the function P i Arrival function P j The shortest path of , determine the value of the hierarchical relationship between any two functional components as the number of functional components included in the s...

no. 2 example

[0110] Embodiment 2 provided by the present invention is a specific application embodiment of a method for dividing assembly units based on the hierarchical assembly relationship provided by the present invention. The assembly in this specific application example is an independent rear suspension structure.

[0111] The following Tables 1 and 2 are respectively the functional part code information table of the independent rear suspension and the assembly relationship value table of the independent rear suspension assembly.

[0112]

[0113]

[0114] Table 1 Function code information table

[0115]

[0116] Table 2 Assembly relationship value list of independent rear suspension assembly

[0117] According to formula 1 and the assembly relationship value of the independent rear suspension assembly in Table 2, the functional part P i Arrival function P j The initial shortest path passes through the function number d (0) i·j , and then get the initial rank matrix D b...

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Abstract

The invention discloses an assembly unit division method based on assembly relation grading, and the method comprises the steps: 1, obtaining an assembly relation value table of an assembly body, anddetermining a grade relation value between any two functional parts according to the assembly relation of all functional parts and the values; 2, calculating a grade relationship value of each assembly relationship and each functional part according to the grade relationship value of each functional part; 3, determining the sum of the weights of all the assembly relations to the grade relation ofany functional part, and selecting basic parts from all the functional parts from large to small according to the sum of the weights of the grade relation; and 4, dividing the assembly units accordingto the grade relationship values between the basic parts and the non-basic parts. The division method is simple to implement and high in feasibility; the applicability is high, and functional parts of different assembling bodies can be divided into assembling units through the method; conversion of brawling graph structural features is not needed, conversion into computer language is easy, and the automation degree is high.

Description

technical field [0001] The present application relates to the technical field of assembly unit division, and in particular to an assembly unit division method based on the hierarchical assembly relationship. Background technique [0002] For an assembly with a large number of parts and a complex assembly process, if the assembly sequence planning is carried out directly, the problem of "combination explosion" will inevitably occur. One of the effective ways to solve this problem is to unitize the complex assembly and divide it into multiple parts. An assembly unit (or sub-assembly) with fewer parts, thus simplifying the assembly sequence planning process of complex products and shortening the efficiency of product development. [0003] The methods for unitizing complex assemblies in the prior art can be roughly divided into clustering methods, process information division methods, and graph and tree structure theoretical division methods and case-by-case reasoning methods. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/17G06F119/18
CPCY02P90/30
Inventor 秦启斌丁刚强韦乐侠韦明凤徐海军粟鸿光廖熙淘王钦徐劲力卢杰卢佩航罗士君胡云峰曹赛男
Owner LIUZHOU WULING MOTORS
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