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Process planning method based on similarity theory

A technology of process planning and similarity, applied in electrical digital data processing, special data processing applications, instruments, etc., can solve problems such as lack of practicability

Inactive Publication Date: 2011-06-01
TONGJI UNIV
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  • Abstract
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Problems solved by technology

[0005] The above process planning methods for the reconfigurable manufacturing environment are only discussed and researched at the theoretical level, and lack practicality

Method used

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  • Process planning method based on similarity theory
  • Process planning method based on similarity theory
  • Process planning method based on similarity theory

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Embodiment Construction

[0062] The present invention will be further described below in conjunction with the content of the present invention and the embodiments described in the accompanying drawings.

[0063] A kind of process planning method based on similarity theory of the present invention, it comprises the following steps:

[0064] Step 1, feature-based part information description.

[0065] The characteristic information of the part is described by the characteristic information model which adds the characteristic combination description on the basis of the single characteristic description. According to the requirements of the process planning on the features, the features related to each other in the single features describing the parts are combined and described, and the nature of this relationship is clarified. The possible association categories between single features can be divided into the following six relationships according to the process requirements: ① reference relationship; ② ...

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Abstract

A process planning method based on similarity theory comprises the following steps of: i) completing a part characteristic information model by adding a characteristic combination description on the basis of traditional single characteristic description, and building an description of part characteristics; ii) indicating entities formed by relevant information of relevant characteristic processing procedures regarding the characteristics as core by process elements, and generating a most basic module and a procedure characteristic of process planning; iii) building a case indexing structure based on the characteristics, generating similar process information by the similarity judgment of a part characteristic multi-branched tree, and performing the process similarity judgment; iv) performing procedure combinations by an agglomerative hierarchical clustering method, so as to generate a procedure cluster; and v) sequencing all the process elements in the procedure cluster according to the precedence relation, so as to ensure that all the process elements in the procedure cluster can be processed on a machine tool.

Description

technical field [0001] The invention relates to a method in the field of process planning, in particular to a process planning method based on similarity theory. Background technique [0002] A reconfigurable manufacturing system is driven by customer needs and the manufacturing environment. It has dynamic reorganization capabilities and can quickly respond to external changes by adjusting the system configuration. Its biggest feature is that it can reorganize itself according to external changes. The reorganization of the manufacturing system involves two levels, the system layer and the equipment layer. The system layer mainly solves how to optimize the allocation of manufacturing resources according to production tasks, and ensure the seamless flow of material flow and information flow between subsystems, so as to realize the production tasks according to production tasks. Customize the production function and production capacity of the manufacturing system, which is real...

Claims

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Application Information

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IPC IPC(8): G06F19/00
Inventor 谢楠李爱平段建国黄立辉
Owner TONGJI UNIV
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