High-reflection object surface defect detection device

Abstract

The invention discloses a high-reflection object surface defect detection device. Automatic feeding and discharging of an object to be detected and rotation switching of the surface to be detected areachieved through a multi-axis manipulator, an uniquely connected light-ray generator and light-transmitting film uniformly distributed with light-shielding blocks are adopted, the brightness of the light irradiated to the surface to be detected is uniform, and a shadow image of bright and dark alternating and regular mottle is formed; the computer controls the brightness and color of the light emitting source to eliminate the high reflection effect of the surface to be detected, through an artificial intelligence image detection technology, the shadow image acquired from a light inlet hole isprocessed and recognized by an industrial camera, whether the surface defect exists or not and the position and the type of the surface defect are judged, and finally separates good products and defective products, saves and outputs a detection result. The full-automatic high-precision and high-speed continuous detection of the surface defect of the high-reflection object is realized, the application range is wide, the industrial value is high, and the development and production automation process of the visual detection technology are promoted.

Description

technical field [0001] The invention relates to the field of visual inspection, in particular to a device for detecting surface defects of highly reflective objects. Background technique [0002] In the production process of industrial products, especially high-precision products, the products need to undergo strict quality inspection before they can be exported as finished products. In the field of industrial product testing, especially high-precision product testing in large quantities, although automated testing technology has been greatly developed and popularized, there are still some products that rely on human eye testing, which consumes a lot of manpower. The efficiency is low, and the detection accuracy is limited. Traditional manual methods cannot meet the work requirements of high-precision product detection in large quantities and short periods. [0003] For the surface defects of high-precision products, the current main solution is to rely on computer vision d...

AI Technical Summary

Problems solved by technology

Of the above two technical solutions, the former mainly acts on flat and highly reflective surfaces, while the latter mainly acts on the highly reflective surfaces of circular workpieces, which cannot be applied to the detection of curved surfaces, folded surfaces, uneven surfaces, etc., and even The detection of surfaces of different colors and sizes, and the means of eliminating high reflective effects are extremely limited. The role of the light source itself is not considered, and there is a lack of adaptive automation structure. The applicable objects are limited, the application range is small, the work efficiency is low, and the detection accuracy needs to be verified.

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