Method and equipment for detecting appearance quality of product

Abstract

The invention discloses a method and equipment for detecting the appearance quality of a product. The method can be used for comprehensively detecting the outer contour defect and surface defect of the product and the defect of the product in a working state. The equipment comprises an illumination light source, a speed detection device, an image acquisition device, a defect detection module, a not good (NG) product removing device, an NG product conveying belt, a defect alarm device, a fixing frame, an electric control box, an industrial personal computer, a display and the like. When the defect detection module detects products with unqualified appearance quality, the defect alarm device gives an acousto-optic alarm, and the NG product removing device is started to remove the unqualified products to the NG product conveying belt. By the method and the equipment, the appearance quality defect is comprehensively detected, the equipment is high in automation degree, the detection speed is high, the detection result is high in objectivity and consistency, and the production efficiency of the manufacturing industry can be effectively improved.

Description

technical field [0001] The invention relates to a method and equipment for detecting product appearance quality, in particular to an optical detection method and equipment for product appearance defects. Background technique [0002] The quantity of products in modern manufacturing industry is increasing, and the requirements for product quality are getting higher and higher. As for the appearance quality inspection of products, most manufacturers still use human eye inspection at present. Human eye inspection is divided into naked eye inspection, microscope human eye inspection, and CCD imaging human eye inspection. Although these There are also good and bad methods, but the qualified judgment of product appearance quality depends on people to make judgments. On the one hand, human eyes are prone to fatigue during long-term observation, and the test results are greatly affected by individual testers, and the test results are not objective. On the other hand, with the expa...

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Problems solved by technology

However, this patent is only based on the detection of the surface quality of the product, and it is powerless to deal with the appearance defects existing in the outer contour of the product. At the same time, the patent can only solve the problem of offline detection, and cannot detect and eliminate products on the automated production line.

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