In-car ceiling handle surface defect detecting device based on machine vision

Abstract

The invention discloses an in-car ceiling handle surface defect detecting device based on machine vision. The device comprises a clamping mechanism, an overturning mechanism, a rotating mechanism and a detection unit, wherein the clamping mechanism adopts a minitype linear stepping motor to control a clamp block to move so as to clamp a handle, the overturning mechanism adopts a stepping motor to overturn the clamping mechanism, the rotating mechanism rotates the overturning mechanism, and the detection unit detects the handle through machine vision; the detection unit comprises a collimated light source, a first detection camera and a second detection camera, the first detection camera is perpendicular to the body of the handle to detect the surface defects of all positions of the body of the handle, and the second detection camera is located above the handle to detect the upper surfaces and inner side faces of the two ends of the handle. The surface defects of the handle are detected through machine vision, the problem that the clamped part of the handle can not be completely detected is solved by means of the clamping mechanism and the overturning mechanism, full-vision detection of the surface defects of the handle can be achieved, and detection accuracy is guaranteed.

Description

technical field [0001] The invention relates to the technical field of handle surface defect detection, in particular to a handle detection device based on machine vision. Background technique [0002] In the quality inspection of handles, most of the surface defects of handles are inspected manually. Since handle defects may spread all over the body, and many small defects are difficult to identify with human eyes, this method is greatly affected by human factors. The product detection method based on machine vision can effectively solve the above problems with its characteristics of non-contact, real-time, repeatability and accuracy. The software for image processing based on machine vision is relatively mature. However, the automatic detection equipment for handle surface defects has not yet been developed. The main technical bottleneck is the mechanical structure design for complete visual coverage of the handle surface. Since the shape of the handle is U-shaped , and t...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiency of manual visual detection and provide a machine vision-based device for detecting surface defects of ceiling handles in cars. The device uses machine vision to detect tiny defects and realize complete visual coverage of the handle surface. At the same time, to ensure the accuracy of detection

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