Multi-station and multi-angle visual surface defect detection system

Abstract

The invention relates to a multi-station and multi-angle visual surface defect detection system, which comprises a visual detection station I, a visual detection station II, a visual detection stationIII, a robot device and an image processing system, wherein the visual detection station I is used for carrying out quality inspection on the upper surface and the upper sideline of a metal sealing end cover, and the visual detection station I comprises three CCD black-white industrial cameras, four light sources and a transparent acrylic plate for bearing the metal sealing end cover; the visualdetection station II is used for carrying out quality inspection on the side face of the metal sealing end cover, and the visual detection station II comprises a line scanning industrial camera, a line light source and a rotating mechanism for driving the metal sealing end cover to rotate; the visual detection station III is used for carrying out quality inspection on the lower surface and the lower sideline of the metal sealing end cover and comprises a camera and three light sources; and signal output terminals of the four CCD black-white industrial cameras and the line scanning industrial camera are respectively in data interaction with a signal input terminal of the image processing system.

Description

technical field [0001] The invention belongs to the technical field of quality inspection of metal sealing end caps, and in particular relates to a multi-station and multi-angle visual surface defect detection system. Background technique [0002] Metal sealing end caps play a vital role in mechanical products. Defects on the surface of metal sealing end caps, such as cracks, scratches, bumps, pits, and rust, are caused by the technological level and improper operation in the manufacturing process. , slump, wear, etc., will destroy the formation of the surface oil film, resulting in poor sealing of parts, quality problems, and serious safety accidents. Therefore, detecting surface defects of metal seals is a necessary part of the product quality control process. However, for the defect detection part of the metal sealing end cap, it includes the upper surface, the lower surface, the annular side and the upper and lower boundary parts formed by the upper and lower surfaces a...

AI Technical Summary

Problems solved by technology

Due to the large number of parts required to be detected, most of them currently rely on traditional manual visual inspection, which has low detection efficiency and high error rate; in order to meet the fast and high accuracy detection requirements of large quantities of workpieces, machine vision technology can be used instead of artificial vision , based on an automated defect detection platform, to complete the defect detection requirements of the workpiece

However, most of the automatic detection platforms that replace traditional manual work can only collect images of workpieces from a certain angle, or can only use a single light source to extract defect features, which is difficult to achieve figure 1 All defects in all parts mentioned above are detected and analyzed. This detection platform is not comprehensive, and most of the detection requirements for general workpieces can be met, but for the defect detection requirements of metal sealing end caps, if all defects cannot be guaranteed site detection, such a device or platform is meaningless

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