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A method for automatic gluing and quality inspection of long stringers based on measured data

A quality inspection method and long stringer technology, applied in the field of gluing, to achieve an efficient gluing method and improve efficiency

Active Publication Date: 2022-02-01
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for automatic gluing and quality inspection of long stringers based on measured data, so as to solve the practical problems raised in the above-mentioned background technology

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  • A method for automatic gluing and quality inspection of long stringers based on measured data
  • A method for automatic gluing and quality inspection of long stringers based on measured data
  • A method for automatic gluing and quality inspection of long stringers based on measured data

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] see Figure 1-4 , the present invention provides a technical solution: in a preferred embodiment of the present invention, a method for automatic gluing and quality inspection of stringers based on actual measurement data is provided, specifically, figure 1 Give an alternative flowchart of the method, such as figure 1 As shown, the method includes the following operation steps: data acquisition and preprocessing steps, using a three-dimensional laser scanne...

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Abstract

The invention discloses an automatic gluing and quality inspection method for stringers based on measured data. A three-dimensional laser scanner is used to collect three-dimensional point cloud data of stringers and skin assemblies; the collected three-dimensional point cloud data is processed, including Denoising and sampling steps; using the Gaussian mapping K-means method to extract the feature points of the intersection line between the stringer and the skin to be glued, constructing a minimum spanning tree for the extracted feature point set, establishing a connected area, and obtaining the initial length before optimization Stringer and skin feature intersection line; use random sampling consistency algorithm to optimize the obtained feature intersection line, remove redundant small branch structures, and obtain the final glue-coating trajectory under the measured data; the invention can realize long stringer automation Gluing greatly reduces the labor cost in the gluing process, improves the accuracy and reliability of gluing status detection, speeds up the gluing efficiency of the long-girder gluing production line, and realizes long-term gluing based on measured data. Stable and efficient gluing method.

Description

technical field [0001] The invention relates to the technical field of gluing, in particular to an automatic gluing and quality detection method for long stringers based on measured data. Background technique [0002] With the development of my country's aviation industry, the precision requirements for new aircraft are getting higher and higher. In the process of aircraft digital design and manufacturing, aircraft panel is a very important load-bearing component of structural design. Its light weight, high efficiency, and commonality are the focus of aircraft design. The load-bearing component composed of skin and stringer, as the basic component of the panel structure, plays an important role in the process of aircraft design and manufacture. The load-carrying capacity, stability (buckling and pressure loss properties) and structural efficiency of the panel are closely related to the panel skin and stringer structure. Therefore, ensuring the stable connection between the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T7/62G06T7/73G06V10/44G06V10/762G06K9/62
CPCG06T7/0004G06T7/62G06T7/73G06T2207/10028G06T2207/30108G06V10/44G06F18/23G06V10/993G06T2207/30088B05B13/0431B05B12/084B05B12/122G06V10/763G06F18/23213G06T7/521B05B12/004G05B19/4097G05B2219/45013G05B2219/45238
Inventor 汪俊周军刘元朋谢乾
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS