Product defect detector and detection method

Abstract

The invention discloses a product defect detector and a detection method, and relates to the technical field of product appearance defect detection. The product defect detector comprises a fixed seat; a shooting assembly which comprises a first camera, a second camera and a third camera which are arranged on the fixed seat, wherein the first camera is obliquely arranged above the product so as to shoot a top view image of the product, the second camera is parallel to the product so as to shoot a head-up image of the product, and the third camera is obliquely arranged below the product so as to shoot a head-up image of the product; and a light source which is arranged on the fixed seat and is used for lighting the product. According to the invention, upward-looking, side-looking and upward-looking image shooting can be carried out on a product, the shooting visual field is ensured, the visual field blind area is reduced, the imaging definition is improved, the overall structure compactness is improved, the structure is simplified, and the size is reduced.

Description

technical field [0001] The invention relates to the technical field of product appearance defect detection, in particular to a product defect detector and a detection method. Background technique [0002] At present, the global smart phone industry is in the mature stage of industry development. The inspection of mobile phone appearance is a relatively important part of the production process. Previously, it was mainly manual inspection, with low labor efficiency, high cost, and relatively subjective factors in the production process. High, making it difficult to control the quality of mobile phones, and the ability of manpower to resist risks is poor. [0003] Then use the method of machine vision imaging to detect the appearance defects of the mobile phone, mainly rely on the camera to shoot and collect the appearance image of the mobile phone, and then transmit it to the computer for processing through the defect detection algorithm, and finally feed back the detection re...

AI Technical Summary

Problems solved by technology

However, the current machine vision imaging method also has many difficulties, the most important of which is the defect detection of the middle frame of the mobile phone. The shape of the middle frame of the mobile phone is complex, the material is various, and the defect types are rich, which requires the image acquisition angle of the appearance of the mobile phone to be wide , the existing scheme adopts the way of two upper and lower cameras to shoot obliquely (overlooking angle, upward angle), and at the same time, the camera and the light source are respectively located on two synchronous belts to collect images from the upper and lower sides of the middle frame of the mobile phone. The overall mechanism is complex and the volume is large.

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