AOI visual inspection system and detection method thereof

Abstract

The invention discloses an AOI visual inspection system and a detection method thereof. The system comprises a machine body and a control box, a moving mechanism is arranged at the lower end of the machine body, a display module is fixedly arranged at the front end of the machine body in an inlaid mode, an input module is fixedly installed at the front end of the machine body, and a protection mechanism is arranged at the front end of the machine body; a permanent magnet is fixedly installed at the front end of the machine body, a shielding mechanism is arranged at the front end of the machine body, a detection mechanism is arranged in the machine body, an inlet is formed in the front end of the machine body, and a placement plate is movably installed in the inlet. During detection, the shielding plate slides downwards along the sliding groove, so that the shielding plate covers and seals the inlet, interference of external light to a detection result is prevented, the first camera moves into the placement groove, the shielding plate is moved upwards to reset after detection is completed, and the shielding plate can be attracted and fixed to the lower end of the permanent magnet through magnetic force.

Description

technical field [0001] The invention relates to the field of detection equipment, in particular to an AOI visual detection system and a detection method thereof. Background technique [0002] The full name of AOI in Chinese is Automatic Optical Inspection, which is a device based on optical principles to detect common defects encountered in welding production. AOI is a new type of testing technology emerging, but it is developing rapidly, and many manufacturers have launched AOI testing equipment. [0003] However, the existing AOI visual inspection system needs to detect material defects, and because there are many kinds of defects, if it targets multiple materials, the number of inspections will double and the inspection speed will decrease. Therefore, in order to ensure the inspection speed, generally only It can detect defects on a material to ensure its detection speed, and the existing AOI visual inspection system will have a light source at the entrance of the materi...

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Problems solved by technology

[0003] However, the existing AOI visual inspection system needs to detect material defects, and because there are many kinds of defects, if it targets multiple materials, the number of inspections will double and the inspection speed will decrease. Therefore, in order to ensure the inspection speed, generally only It can detect defects on a material to ensure its detection speed, and the existing AOI visual inspection system will have a light source at the entrance of the material during inspection, which may cause the detection results to be affected. At the same time, the existing AOI visual inspection system is in The detection needs to be illuminated by the internal light, and then the camera is used for camera inspection, and the position of the camera is fixed. During the inspection, the raised end of some materials will block the camera, resulting in the blocked part being unable to be effectively detected and affecting the detection results. Therefore, a system is urgently needed. to solve the above problems

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