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A three-coordinate measurement method for helicopter moving parts

A technology of three-coordinate measurement and moving parts, which is applied in the field of inspection and testing, can solve the problems of shared measurement program blocks for different moving parts, complex structure of helicopter moving parts, and evaluation of quality characteristics that cannot be directly used, so as to improve efficiency, accuracy and efficiency effect

Active Publication Date: 2021-10-29
CHANGHE AIRCRAFT INDUSTRIES CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The structural features of different types of helicopter moving parts are similar, and their processing technology also has a certain similarity. Therefore, for the measurement programming of the three-dimensional coordinate measuring machine, there is a possibility that different moving parts share the measurement program block
On the other hand, the structure of the helicopter's moving parts is complex, and the evaluation of its quality characteristics cannot be directly obtained by simple calculations on the measured features.

Method used

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Embodiment Construction

[0027] The present invention is a three-coordinate measurement method for helicopter moving parts, comprising:

[0028] Step 1: Construction of the structural feature library of helicopter moving parts

[0029] The basic structures of different helicopter moving parts are similar, and the types of basic geometric and topological structures can be exhaustive. Therefore, this method creates a structural feature library of helicopter moving parts by classifying the basic structure of helicopter moving parts;

[0030] Step 2: Structural feature extraction of helicopter moving parts to be measured

[0031] In the CATIA environment, read the three-dimensional inspection plan of the moving parts, and extract the structural features required for the three-coordinate measuring machine measurement of the moving parts without repetition;

[0032] Step 3: Identification of typical structures of helicopter moving parts

[0033] In the CATIA system, by calling the topology traversal func...

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Abstract

The invention belongs to the inspection and detection technology, and provides a three-coordinate measurement method for helicopter moving parts, which improves the accuracy and efficiency of moving parts measurement, including: step 1: construction of a structural feature library of helicopter moving parts; step 2: measurement of helicopter moving parts Structural feature extraction; Step 3: Typical structure identification of helicopter moving parts; Step 4: Quick programming of the three-coordinate measurement program of helicopter moving parts; Step 5: Indirect measurement geometric feature structure of helicopter moving parts; Step 6: Determination process definition; Step 7 : Pre-program file generation; Step 8: measurement program generation and execution.

Description

technical field [0001] The invention belongs to inspection and detection technology, and relates to a three-coordinate measurement method for helicopter moving parts. Background technique [0002] The structural features of different types of helicopter moving parts are similar, and their processing technology also has a certain similarity. Therefore, for the measurement programming of the three-coordinate measuring machine, there is a possibility that different moving parts share measurement program blocks. On the other hand, the structure of the helicopter's moving parts is complex, and the evaluation of its quality characteristics cannot be directly obtained by simple calculation of the measured characteristics. Contents of the invention [0003] Purpose of the invention: To provide a three-coordinate measurement method for helicopter moving parts, to improve the accuracy and efficiency of moving parts measurement. [0004] Technical solutions: [0005] A three-coordi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/00
CPCG01B21/00
Inventor 李文琴段桂江艾友庆李城白红超刘睿
Owner CHANGHE AIRCRAFT INDUSTRIES CORPORATION