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Method for searching revolved body component process

A technology of rotary body and parts, which is applied in the field of process retrieval of rotary body parts

Inactive Publication Date: 2011-10-05
HANGZHOU DIANZI UNIV
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Problems solved by technology

[0003] The present invention mainly solves the problem of process instance retrieval. The flexible coding method based on the variable number of processing technology and the similarity matching algorithm based on the characteristics of the processing unit and the precision feature improve the accuracy of instance matching and make the instance process reusable. enhance

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  • Method for searching revolved body component process
  • Method for searching revolved body component process
  • Method for searching revolved body component process

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Embodiment Construction

[0058] The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

[0059] This example is based on figure 1 The retrieval flow chart shown in the figure 2 The process retrieval of the rotary parts shown is taken as an example, and the retrieval is performed by inputting multi-level features.

[0060] (1) Part information description based on feature vector

[0061] figure 2 The processing unit feature set F of the workpiece shown is F = (f1, f2, f3, f4, f5), which requires machining accuracy. According to the previous definition, the external main feature f1 is a cylindrical feature, f2 is a cylindrical feature, and f3 is a cylindrical feature. f4 is a conical feature, and f5 is a cylindrical feature, so the external main feature vectors are:

[0062] C=[1,1,1,1,0]

[0063] O=[0,0,0,1,0]

[0064] T=[0,0,0,0,0]

[0065] G=[0,0,0,0,0]

[0066] So the external ...

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Abstract

The invention relates to a method for searching a revolved body component process. The method comprises the following steps of: describing component information by using a characteristic vector which comprises a main characteristic vector and an auxiliary characteristic vector of a component; and performing process similarity searching, namely comparing and matching geometric information and process information of a component with corresponding information of an example so as to determine an example process, serving as a sample designed by the current component process, in a process base. Thefirst stage of a reasoning strategy is used for searching the characteristic of an external main unit and stepping into the second stage for searching the characteristic of an internal main unit if an example matched with the current workpiece exists; after finishing the previous two stages, the third stage for searching the characteristic of an auxiliary unit is performed, so that the similarityis increased; and if the third stage for searching fails, the output of the previous two stages is a reasoning result. In the method, a plurality of machining characteristics of the component is taken into consideration, so that the search result is more precise.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing process design, and in particular relates to a process retrieval method for parts of a revolving body. Background technique [0002] In the process of design and manufacturing, in order to meet the requirements of customized production of enterprises, the process and time of part structure design and process design should be shortened as much as possible. Therefore, it is necessary to reasonably reuse the existing design information and manufacturing information of enterprises, and use Shorten the design cycle, reduce design costs, and ensure design quality. In the process of reusing electric tool process information, the similarity retrieval mechanism plays a key role. The retrieval mechanism is embodied by retrieval criteria or algorithms. The purpose is to search for examples similar to the current design parts as quickly and accurately as possible through retrieval methods. The existin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 苏少辉陈国金龚友平胡杭民戴锡锋顾齐齐张哲夫
Owner HANGZHOU DIANZI UNIV
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