Wing body butt joint gap distribution control method based on measured data

Abstract

The invention discloses a wing body butt joint gap distribution control method based on measured data. The method comprises the steps of collecting the original point cloud data of a wing and a central wing box; preprocessing the original point cloud data of the two; registering the preprocessed point cloud data of the wing and the central wing box with corresponding solid models respectively; selecting key features during butt joint on the two entity models, mapping the key features to the registered point cloud data, and extracting corresponding point cloud features; docking the wing point cloud data and the central wing box point cloud data based on the positioning points; dividing the butt joint surface into a plurality of regions, calculating the gap of the feature points of each region after butt joint, and adjusting the weight of each region according to the gap tolerance so as to control the gap distribution. According to the method, the wing body butt joint gap distribution can be controlled through the characteristic weight according to the actual measurement data, the gap requirement during wing body assembling is met, and therefore the wing body assembling quality and production efficiency are improved, and the technical requirement for wing body butt joint gap distribution control is met.

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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