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Carbon fiber composite material rivet hole size detection system and method

A carbon fiber material and size detection technology, which is applied in measuring devices, image analysis, image enhancement, etc., can solve the problems of difficult measurement of inner hole surface depth information, difficulty of image detection, etc., to achieve convenient and intuitive observation, ensure accuracy, and simplify the effect of the process

Active Publication Date: 2021-10-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, for carbon fiber surfaces, the obtained grid-containing form leads to difficulties in edge detection of images d
In addition, the pictures taken by the monocular CCD do not contain depth information, and it is difficult to measure the surface depth information of the inner hole

Method used

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  • Carbon fiber composite material rivet hole size detection system and method
  • Carbon fiber composite material rivet hole size detection system and method
  • Carbon fiber composite material rivet hole size detection system and method

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Embodiment Construction

[0026] The present invention is specifically described below through the examples, it is necessary to point out that the present examples are only used to further illustrate the present invention, and can not be interpreted as limiting the protection scope of the invention, those skilled in the art can according to the above-mentioned present invention Some non-essential improvements and adjustments made in the content of the invention.

[0027] The object of the present invention is achieved by the following technical measures:

[0028] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Such as figure 1As shown, including in the laser detection system 1, the main support 102 is placed on the workbench 101, the beam 103 is installed in front of the main support 102 and can move linearly along the front and rear directions of the main support, and the mechanical arm 104 installed in front of the beam 103...

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Abstract

The invention discloses a carbon fiber composite material rivet hole size detection system and method, which is characterized in that the depth information of the rivet hole contour is scanned by a line laser, and a single rivet hole and a cylindrical hole are respectively obtained by using a deep convolutional neural network algorithm and a projection method image, simplifying the complexity of edge extraction; using the idea of ​​partition, using the Canny algorithm and sub-pixel edge extraction algorithm to more accurately extract the diameter of the cylindrical hole and the large hole on the conical surface; through the two-step method to solve the point cloud data of the conical surface The fitting parameters of the rivet holes are used to realize the angle information of the cone surface of the rivet hole and ensure the accuracy of the angle of the cone angle; the three-dimensional display technology is used to display the scanned three-dimensional image of the rivet hole, which is convenient for intuitive observation of the size information. The method proposed by the invention has the advantages of fast scanning speed, low difficulty of edge detection, high precision of size detection and the like.

Description

technical field [0001] The invention relates to the field of intelligent size detection, in particular to a method for obtaining the size of a rivet hole by dynamically scanning the contour information of a rivet hole part with a line laser. Background technique [0002] Carbon fiber composite material is a special fiber composed of carbon elements. It has stable valence, excellent chemical properties of strong acid resistance and strong alkali resistance, and physical properties of high temperature resistance, friction resistance, electrical conductivity and heat conduction. It is a kind of excellent mechanical properties. new material. Its specific gravity is less than a quarter of that of steel, and its tensile strength and tensile modulus are also higher than that of steel. It is suitable for use under severe environment and climate change conditions, and can improve the bearing capacity, seismic performance and durability of components. Carbon fiber materials are wide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/00G01B11/08G01B11/24G01B11/26G01B11/27G06T7/00G06T7/13G06T7/62
CPCG01B11/00G01B11/08G01B11/2433G01B11/26G01B11/27G06T7/0004G06T2207/10028G06T2207/30108G06T7/13G06T7/62
Inventor 王瑜李迅波魏宏才蔡吴缺董一凡曾毅星
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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