In the process of automatic production and manufacturing, the essential link is detection, which detects whether the appearance of the product has defects, whether the size has errors and so on. The machine vision detection system solves this problem very well. Visual inspection technology is to simulate the visual function of human eyes by computer, extract information from the image for processing, analysis and judgment, and finally use it for actual detection, measurement and control.
Application case of PCB identification, classification and detection
This system is specially developed for manufacturers in the PCB industry. At present, many PCB proofing manufacturers and small and medium-sized batch manufacturers have 5000 ~ 10000 models / day of sample / small batch production every day. Each PCB represents different customers. At present, it is difficult to identify the number on the board manually. Because the printed font is relatively small, it is easy to identify the wrong materials, Cause a lot of human losses and customer complaints.
Testing requirements: match the product according to the appearance and size, inner hole and the standard outline drawing of the product loaded into the system. The one with the highest matching success score will communicate with the customer's printer. The software system will send the printer to print the number label according to the number of the identified product. The tested product size: 30mmx30mm ~ 250mmx250mm, The system visually identifies the product and the number in the black-and-white characteristic drawing of the loaded product one by one to prevent mixing.
Application case of deflector appearance defect detection
Requirements for appearance inspection of the guide plate: the middle of the back of the guide plate is crushed and deformed, the middle locating pin of the back of the guide plate is crushed and deformed, the middle locating pin of the back of the guide plate is missing, there is abnormal whitening in the middle of the guide plate, there is a large bump on the edge of the guide plate, there is a bump on the back of the guide plate, there are many small bumps on the edge of the back of the guide plate Angle measurement of guide plate locating pin.
Requirements for rubber ring detection of deflector: black ring detection, whether it is installed, angle detection and angle measurement.
Character recognition and application date
Ensuring the correct and clear marking of production date and other relevant information is an important link in the process of food production. This kind of identification and detection work is highly repetitive. The traditional manual detection will add huge labor cost and management cost to the factory. The detection efficiency is low and the speed is slow, and the inspection qualification rate of 100% can not be guaranteed. Using machine vision technology for OCR character acquisition and detection has a very broad market demand.
Test items: production date, shelf life and other information, missing characters, missing characters, fuzzy characters, skew characters, ghosting, incorrect information, etc.
In addition, the visual inspection system is also widely used in other industries, such as electronic component inspection: size measurement of connectors, capacitors and resistors, defects such as pin offset, deformation and shortage, printed character inspection, etc; Food packaging inspection: appearance integrity inspection, bar code identification and sealing inspection of food packaging; Beverage sorting and color selection, liquid detection, production date and shelf life character recognition; Detection of bottle damage and cleanliness above the filling line; Inspection of pharmaceutical packaging: measurement of length, height, diameter and other dimensions of pharmaceutical plastic bottles and glass bottles, and inspection of defects such as damage and black spots.