PCB detection sorting system and method based on machine vision

Abstract

The invention discloses a PCB detection sorting system and method based on machine vision. The system comprises a machine vision detecting device, a robot sorting device and a production line control device; the machine vision detecting device comprises an intelligent camera, and a microprocessor is arranged in the intelligent camera; the robot sorting device is composed of an industrial robot, a vacuum gas pump, a gas nozzle and an electronic valve, and the industrial robot and the intelligent camera in the machine vision detecting device are connected to achieve communication; the production line control device is composed of a PLC controller, a limiting switch and a production line, the PLC controller is connected with the intelligent camera in the machine vision detecting device and the industrial robot in the robot sorting device to form communication, the PLC controller controls the production line to move according to signals given by the industrial robot and the intelligent camera, and the production line conveys PCBs to the sorting station to the detecting station. By means of the PCB detection sorting system and method, manual cost is saved, and the detecting sorting efficiency and quality are improved.

Description

technical field [0001] The invention belongs to the technical field of PCB detection, and in particular relates to a machine vision-based PCB detection and sorting system and method. Background technique [0002] The PCB detection and sorting system based on machine vision is a system with high practical value and wide practical significance. It uses image processing and pattern recognition technology of machine vision to realize intelligent detection and sorting of PCB, which can read code traceability and detect PCB Defects, such as: whether there are missing parts, wrong parts (R, C and L), whether the measuring pins are bent, whether the solder feet are regular, etc., and sorted to different positions according to classification. The system has the advantages of fast detection speed, high positioning accuracy, and strong practicability, and can be applied to the engineering field of PCB inspection, sorting and other assembly line operations. Many existing factories stil...

AI Technical Summary

Problems solved by technology

Many existing factories still use manual inspection or visual inspection with slow speed and no automatic sorting function; there are also many algorithms that can only inspect a part of a PCB, and it takes a long time to inspect the entire PCB, and the program execution is slow; some programs The interactivity of the system is not strong, and it can only be tested for one type of PCB, and the detection area and parameters cannot be changed according to the actual situation; some system detection and sorting are carried out at the same station, which affects work efficiency; some PCB detection does not will be classified and stored according to different defects

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