Similar model retrieval implementing method based on three-dimensional labeling

A technology of 3D model and 3D labeling, which is applied in the field of similar model retrieval based on 3D labeling, can solve the problems that the actual effect is difficult to be guaranteed, there is no computer technology for efficient search and retrieval of similar products, and the work efficiency is low. Visual effects

Active Publication Date: 2018-05-11
CAPITAL AEROSPACE MACHINERY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, under the original conditions, there is no computer technology means to efficiently find and retrieve similar products
Mainly rely on the p

Method used

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  • Similar model retrieval implementing method based on three-dimensional labeling
  • Similar model retrieval implementing method based on three-dimensional labeling
  • Similar model retrieval implementing method based on three-dimensional labeling

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Embodiment 1

[0144] A method for realizing similar model retrieval based on three-dimensional labeling according to the present invention, its specific steps are as follows:

[0145] (1) The manufacturing department receives the 3D model (a.1) with dimensions in the design part, and realizes the management of the model in the PDM system;

[0146] (2) Through the PDM system interface, based on the receiving time interval of the 3D model (a.1), read the 3D model (a.1) in the PDM system in batches in an incremental manner, and create a copy of the 3D model (b.1);

[0147] (3) By integrating with the 3D CAD software, start the 3D CAD tool software, traverse and open the local 3D model copy (b.1) in turn, and traverse all the 3D annotation information on each 3D model copy (b.1.n) (c .1); At the same time, the drawing number is used as the unique identification to generate the corresponding 3D lightweight model;

[0148] (4) According to the characteristics of the dimensioning information (c.1...

Embodiment 2

[0209] Such as figure 1 As shown, a method for realizing similar model retrieval based on three-dimensional annotation according to the present invention is characterized in that the method combines three-dimensional CAD tool software to extract dimension information on the three-dimensional model, and then realizes the three-dimensional model based on the dimension information. The calculation of the similarity and the retrieval of the 3D model, the specific implementation steps are as follows:

[0210] (1) 3D design model;

[0211] (2) Calculation of model similarity;

[0212] (3) similar model retrieval;

[0213] Wherein, step (1) includes: the manufacturing department receives the 3D model (a.1) with dimensions marked by the design department, realizes the management of the 3D model in the PDM system, and forms a 3D model library;

[0214] Wherein, step (2) comprises:

[0215] (2.1) Through the PDM system interface, based on the receiving time interval of the 3D model ...

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Abstract

The invention provides a similar model retrieval implementing method based on three-dimensional labeling. By means of the method, the function of extracting three-dimensional model labeling information is achieved through three-dimensional CAD software, and a three-dimensional model labeling feature database is formed with extracted size labeling information. The size labeling information of the current three-dimensional model is extracted when similar retrieval needs to be conducted on the three-dimensional model, and the extracted size information is processed, the similarity between the size information and the model size classification and counting standard value is calculated, and the similarity of the current three-dimensional model is obtained. Then, one or more pieces of three-dimensional model data the highest in the current model similarity are retrieved and returned according to the calculated similarity, and a similar data set is formed. The similarity between the size information and the size information of each three-dimensional model in the similar data set is calculated secondarily, similarity sequencing is conducted again, and in combination with a light-weight model, the result is presented in a visual mode. By means of the method, work efficiency is remarkably improved, and design capacity is improved.

Description

technical field [0001] The invention relates to the technical field of digital manufacturing, in particular to a method for realizing similar model retrieval based on three-dimensional annotation. Background technique [0002] With the development of model three-dimensional research and development, more and more model products adopt three-dimensional design and three-dimensional manufacturing technology. But on the whole, in the process design and manufacturing process of the product, the reuse of the existing information in the 3D model is not enough, and the effective use of the 3D design information in the model has not been realized to reduce the manual operation in the process design process. The goal of improving process design efficiency and quality. [0003] Model-based process design is mainly based on inherited process design. Process personnel often need to find out whether there are similar products, carry out the process design of similar products, and then c...

Claims

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Application Information

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IPC IPC(8): G06F17/30G06F17/50G06T19/00
CPCG06T19/00G06T2219/012G06F16/5866G06F30/00
Inventor 杨立明战玉晓吴新录安康郑伟何薇杨卫华张道男
Owner CAPITAL AEROSPACE MACHINERY
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