Automatic visual inspection system of PCB and working method of automatic visual inspection system

Abstract

The invention discloses an automatic visual inspection system of a PCB, and the system comprises a camera obscura, the interior of the camera obscura is a visual inspection chamber, and the interior of the visual inspection chamber is provided with an industrial camera; the lower sides of the front and rear walls of the camera obscura are respectively provided with a front conveying port and a rear conveying port which penetrate through the visual inspection chamber; the system also comprises a front conveying belt unit and a rear conveying belt unit which are consistent in extending direction, and a front conveying surface on the front conveying belt unit is flush with a rear conveying surface on the rear conveying belt unit; the front conveying face and the rear conveying face can horizontally convey PCBs in the length direction. The system is simple in structure, and a PCB can be automatically turned over in the conveying process, so that the front face and the back face of the PCBare detected at the same time; the visual detection efficiency is greatly improved; in addition, the plate turnover mechanism can achieve the whole process of plate turnover and transfer only throughtwo servo motors.

Description

technical field [0001] The invention belongs to the field of PCB visual detection. Background technique [0002] Using the vision system, the PCB bare board can be inspected by industrial cameras instead of human eyes, and the position and spacing of the wires and components on the board are wrong, the size of the lines and components is wrong, the shape of the components is wrong, the passage of the line, and the contamination on the board. etc.; the existing PCB board can only detect one side during detection, and cannot detect both sides simultaneously, so the efficiency is relatively low. Contents of the invention [0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the present invention provides an automatic visual inspection system capable of detecting double-sided PCB circuit boards and its working method. [0004] Technical solution: In order to achieve the above object, the automatic visual detection system of PCB circuit boa...

AI Technical Summary

Problems solved by technology

[0002] Using the vision system, the PCB bare board can be inspected by industrial cameras instead of human eyes, and the position and spacing of the wires and components on the board are wrong, the size of the lines and components is wrong, the shape of the components is wrong, the passage of the line, and the contamination on the board. etc.; the existing PCB board can only detect one side during detection, and cannot detect both sides at the same time, so the efficiency is relatively low

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