An automatic polishing planning and decision method for aircraft structural parts

By employing an automated grinding planning and decision-making method and utilizing a high-resolution three-channel camera and multi-angle imaging technology, automated grinding of aircraft structural components has been achieved, solving the problem of low efficiency in manual grinding and improving grinding quality and precision.

CN119017201BActive Publication Date: 2026-01-09CHENGDU AIRCRAFT INDUSTRY GROUP
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Patent Information

Application Number
CN202411311607.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-09-20
Publication Date
2026-01-09
Estimated Expiration
2044-09-20

AI Technical Summary

Technical Problem

Existing technologies make it difficult to automate the grinding of aircraft structural components, especially the grinding of groove features in frame and beam structural components, resulting in high reliance on manual labor and difficulty in guaranteeing grinding efficiency and quality.

Method used

An automatic polishing planning and decision-making method is adopted. The area to be polished is identified by a high-resolution three-channel camera. Combined with multi-angle imaging and image processing technology, the polishing path is identified and planned to generate an automatic polishing program. Fine data scanning and re-inspection are carried out to ensure polishing quality.

Benefits of technology

It has enabled automated grinding of aircraft structural components, reduced reliance on manual labor, improved grinding efficiency and quality, reduced invalid paths, and enhanced grinding precision and reliability.

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Abstract

The present application belongs to the field of aviation manufacturing, and specifically relates to an automatic polishing planning and decision method for an aircraft structural member, comprising the following steps: positioning of a structure member to be polished and a web area; single-web multi-angle imaging image combination judgment; identification and positioning of a transition area of a tool mark; regional refinement data scanning; final web area polishing boundary data acquisition; first web polishing area planning; spatial non-interference distance measurement; determination of remaining web to be polished based on a cyclic planning method; generation of a polishing program for polishing; polishing treatment; and polishing area re-inspection. Compared with a traditional manual polishing method, the polishing area planning strategy proposed in the present application can fully consider the positions of adjacent polishing areas and the corresponding attributes of polishing features, can obviously reduce the generation of invalid polishing paths, and can effectively improve the efficiency and quality of the whole-process polishing of an aviation structural member.
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