Control method of wing-body joint gap distribution based on measured data

Abstract

The invention discloses a method for controlling the distribution of wing-body butt joint gaps based on measured data, comprising: collecting original point cloud data of the wing and a central wing box; preprocessing the original point cloud data of the two; The point cloud data of the wing and the central wing box are registered with the corresponding solid models; select the key features when docking on the two solid models, map the key features to the registered point cloud data, and extract the corresponding point cloud Features; dock the wing point cloud data and the central wing box point cloud data based on the positioning points; divide the docking surface into multiple regions, calculate the gap between the feature points of each region after docking, and adjust the gap of each region according to the gap tolerance Weights to control the gap distribution. The invention can control the distribution of the wing-body butt joint gap through the characteristic weight according to the measured data, and meet the gap requirement during the wing-body assembly, thereby improving the assembly quality and production efficiency of the wing-body, and solving the technical demand for the distribution control of the wing-body butt joint gap.

Description

technical field [0001] The invention relates to the technical field of aviation manufacturing, in particular to a method for controlling the distribution of wing-body butt joint gaps based on actual measurement data. Background technique [0002] In aircraft assembly, the size of the docking gap between various parts of the aircraft is an important indicator to measure the quality of assembly. In the modern assembly process, there is also a method of selecting multiple parts of the same type to try to dock with the whole, and select the best matching parts for assembly, which helps to improve the overall assembly quality of the aircraft. [0003] However, this method requires multiple disassembly and assembly of the parts, which seriously affects the production speed. In addition, the main method currently used for gap control is manual measurement with a feeler gauge. There are some disadvantages in the manual operation method: manual feeler gauge measurement consumes a lo...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for controlling the distribution of the wing-body joint gap based on the measured data, which can control the distribution of the wing-body joint gap through the characteristic weight according to the measured data, so as to meet the gap requirements during wing-body assembly, thereby improving the assembly quality and quality of the wing-body Production efficiency, which solves the technical demand for the distribution control of the wing-to-body joint gap

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