A method of hole making based on inside feature location

By placing signal transmitters on the internal edges of aircraft parts and measuring them using CNC equipment, the problem of drilling holes not meeting requirements due to edge offset of internal parts during aircraft assembly was solved, achieving the accuracy and efficiency of automated hole making.

CN119501129BActive Publication Date: 2025-10-14AVIC SAC COMML AIRCRAFT
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Patent Information

Application Number
CN202411607574.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-10-14
Estimated Expiration
2044-11-12

AI Technical Summary

Technical Problem

In the existing technology, during the aircraft assembly process, it is difficult to accurately identify the offset of the edges of internal parts when drilling holes from the outside of the product to the inside, resulting in the drilling position not meeting the requirements.

Method used

A signal transmitter is placed on the edge of each part inside the product, and the actual position of each edge is measured using CNC equipment. The drilling position is corrected through geometric calculations to ensure that the hole distance from the edge of the internal part meets the requirements.

Benefits of technology

It realizes the accurate tracking of the edge offset of internal parts in the process of automated hole making, ensures that the hole margin meets the requirements, improves work efficiency, has a wide range of applications, and simplifies the benchmark establishment process.

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Abstract

The application discloses a hole drilling method based on inner feature position, belongs to the technical field of aircraft assembly and is used in the field of aircraft assembly. The hole drilling method identifies the inner feature, such as a line position, through an automatic equipment, thereby obtaining the outer hole drilling position, realizes the outer hole drilling and satisfies the control of the hole distance from the inner feature. The implementation method is as follows: a signal emitting device is arranged on the inner side of a part, the signal is received by the equipment on the outer side of the part, and the position of the signal source is obtained through analysis. The signal source can be arranged in multiple numbers, and the multiple signal sources jointly indicate the shape and position of the inner part feature. The application realizes the hole drilling following the edge offset of the inner part, guarantees that the hole edge distance meets the requirements, realizes that the position can be obtained at any position of the edge of the inner part of the product, has a wide application range, avoids the drilling and the preparation drilling work for establishing the datum in the traditional method, uses the simple manual measurement method to determine the datum position and improves the work efficiency, and has a high automation degree.
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