A high-efficiency, fully automatic quality and appearance inspection integrated equipment for pcb circuit boards

Abstract

The invention relates to an integrated equipment for high-efficiency full-automatic quality and appearance inspection of PCB circuit boards, including a workbench, and a transmission device on the workbench transmits the PCB board horizontally. Short-circuit detection and marking of PCB boards with short circuits, the abnormal PCB boards are directly removed by the defective product rejection device, and then the laser detection device detects the appearance of the BGA chip, and the PCB board appearance detection device checks the front and back sides of the PCB board Appearance inspection, and finally the buffer device temporarily stores the PCB board and pushes it into the finished product box; the full mechanization performs two short-circuit inspections on the PCB board in different positions, the appearance inspection of the BGA chip, and the inspection of the overall appearance of the PCB board , without manual operation, improve the inspection quality and efficiency of PCB boards; eliminate defective products, prevent defective products from being mixed into qualified products, improve the pass rate of finished products, and have good market application value.

Description

technical field [0001] The invention relates to the technical field of PCB board testing equipment, in particular to a high-efficiency, fully automatic quality and appearance testing integrated equipment for PCB circuit boards. Background technique [0002] Circuit board short circuit is a very common problem in circuit board production. Generally, there are two problems with short circuit. One is that the PCB circuit board has reached a certain practical life, and the other is that the inspection work in PCB circuit board production is not in place. Some small mistakes in production may cause components to burn out, which is very harmful to the entire PCB circuit board and may cause scrapping. Therefore, it is extremely important to check and control them during the production process; At this stage, the production workshop first visually inspects the appearance of the assembled PCB board for obvious defects, then manually places the multimeter on the positioning seat, uses...

AI Technical Summary

Problems solved by technology

[0002] Circuit board short circuit is a very common problem in circuit board production. Generally, there are two problems with short circuit. One is that the PCB circuit board has reached a certain practical life, and the other is that the inspection work in PCB circuit board production is not in place. Some small mistakes in production may cause components to burn out, which is very harmful to the entire PCB circuit board and may cause scrapping. Therefore, it is extremely important to check and control them during the production process; At this stage, the production workshop first visually inspects the appearance of the assembled PCB board for obvious defects, then manually places the multimeter on the positioning seat, uses the multimeter to check whether the power supply and ground on the circuit board are short-circuited, and then checks other components on the PCB board. Whether there is a short circuit in the circuit, and finally transfer the PCB board to the next inspection station, and use the CCD camera or laser detector to inspect the appearance size of the BGA chip on the PCB board. Due to the instability of manual participation, the traditional inspection equipment once Only one PCB board can be detected, the detection efficiency and quality are very low, and it cannot meet the large demand for PCB circuit boards at the present stage. Therefore, the existing technology has defects and needs to be improved.

Images