A kind of intelligent control method and control system of inner layer AOI process

Abstract

The invention belongs to the technical field of PCB, and discloses an intelligent control method and control system for an inner layer AOI process, including: scanning the substrate etched by DES and filtering false points; sorting; use RGV rail transport vehicles to transport the sorted substrates in different states to the corresponding positions; automatically generate the information of the incoming substrates for the storage of qualified boards; carry out inspection and repair of unqualified boards; use the reclaimer based on the production schedule according to Layers require that the substrates to be delivered be stacked on the discharge line for substrate delivery; based on the generated schedule, the lifting stacker is used to automatically stack the substrates, and the AGV trolley is used to transport them to the corresponding position for automatic panel delivery. The invention realizes automatic distribution of production instructions, automatic identification of product information and automatic transmission of production information, supplemented by an intelligent logistics system, and realizes automatic production and intelligent management.

Description

technical field [0001] The invention belongs to the technical field of PCB, and in particular relates to an intelligent control method and a control system of an inner layer AOI process. Background technique [0002] At present, Automated Optical Inspection (AOI) is a high-speed and high-precision optical image inspection system that uses machine vision as the inspection standard technology. The machine automatically scans the PCB through the camera, collects images, and detects solder joints that are qualified in the database. The parameters are compared, and after image processing, the defects on the PCB are checked out, and the defects are displayed or marked through the display or automatic signs for maintenance personnel to repair. As an emerging detection technology in China, AOI has developed rapidly in the past two decades and has been widely used in PCB manufacturing processes. In 2018, the PCB industry accounted for 63.9% of the application of AOI testing in the C...

AI Technical Summary

Problems solved by technology

[0004] At present, in the production and processing of PCB boards, the AOI equipment using black and white CCD cameras is mainly used to scan and detect defects on the printed circuit board to be tested, and then use the reflection principle to detect false points and filter false points; at the same time, artificial After the defect judgment, it is transferred to other processes. Most of the overall process is completed manually, which consumes a lot of manpower and material resources, and the production efficiency is low. Moreover, manual defect detection and other processes lead to a large error rate; at the same time, the amount of false point filtering is small, and manual maintenance is accurate. The efficiency is low, the cost is high, and the efficiency is low, which will lead to poor quality of the produced PCB board and low production efficiency

[0005] Through the above analysis, the problems and defects of the existing technology are: the existing method is mainly completed manually, the efficiency is low, the error rate is high, the error rate is large, the amount of false point filtering is small, the accuracy rate is low, the cost is high, and the PCB produced Poor board quality, low production efficiency, low degree of intelligence

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