Application of 3d cad in the design of inspection and planning system of intelligent three-coordinate measuring machine

被引：0

作者：

Guang J. ^{[1
]}

Li F. ^{[1
]}

机构：

[1] Zhengzhou railway vocational &technical college, Zhengzhou, 451460, Henan

来源：

Computer-Aided Design and Applications | 2020年 / 18卷 / S3期

关键词：

3D reality; CAD; Inspection and planning system; Intelligent three-coordinate;

D O I：

10.14733/cadaps.2021.S3.141-152

中图分类号：

学科分类号：

摘要：

Computer aided inspection planning based on CAD coordinate measuring machine is the basic key technology, which occupies a very important position in the quality system. Nowadays, the research of integration technology has made a lot of achievements, but the research on information integration of system and system lags far behind the information integration of machining. How to use the part information and measurement-related knowledge provided by the product model to automatically generate optimal testing procedures and testing instructions for use is the basic task of the oriented intelligent system. This paper aims at the development of intelligent CMM inspection planning system based on 3D, from the overall analysis and design of the system to the extraction of detection geometric information, sampling planning, detection path planning and automatic generation of quack measurement program and other related key technologies will be studied. This paper briefly analyzes the relevant factors that determine the number of sampling points and summarizes the point requirements for the distribution of sampling points, and in view of the shortcomings and limitations of various methods of sampling point distribution on the general surface, a sampling strategy with adaptive step size is proposed, which solves the problem of sampling planning on the general surface. In the specific implementation of sampling planning, it is divided into two ways: edge-based and face-based geometric element measurement and sampling. Considering the requirements of distribution points, specific sampling algorithms are designed respectively, focusing on the analysis of the differences between edges and faces. © 2020 CAD Solutions, LLC.

引用

页码：141 / 152

页数：11

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