For example, automated production lines require the rapid and accurate installation of each part. However, some processing plants still use traditional manual positioning methods, which have the following drawbacks:
(1) Long-term positioning of a single product can easily cause eye fatigue in inspectors and make them susceptible to emotional influences, making it difficult to guarantee the positioning results;
(2) Each worker's judgment standard for the accuracy of the same positioning varies slightly, resulting in inconsistent positioning standards, which makes it difficult to guarantee high-quality products;
(3) Manual positioning is relatively slow. It takes a long time to accurately position a product. Manual positioning cannot meet the online positioning requirements of high-speed production lines.
With the development of technology, the market and users have increasingly higher requirements for the precision and quality of products. Traditional positioning methods can no longer meet the needs of users. Therefore, the industry has successively introduced machine vision technology.
Machine vision technology has a positioning function, which can automatically determine the position of an object and output the position information through a certain communication protocol. This function is mostly used in fully automated assembly and production, such as automatic assembly, automatic welding, automatic packaging, automatic filling, and automatic spraying, and is often used in conjunction with automatic actuators (robotic arms, welding guns, nozzles, etc.).
Machine vision-based visual positioning technology has attracted widespread attention from manufacturing manufacturers. Fully automated visual positioning methods not only overcome the shortcomings of traditional manual positioning methods but also leverage their advantages of speed and accuracy.
(1) High positioning accuracy, reliable and stable positioning results;
(2) It has a fast positioning speed and can work for a long time, reaching 24 hours a day.
In a visual positioning and inspection system, accurately identifying the direction and position of a product is the core of the system. Positioning and inspection can be divided into two steps: first, creating a standard template, and second, searching. The visual positioning system uses advanced image visual inspection technology to achieve real-time and comprehensive visual positioning analysis of high-speed moving industrial products. When the system is equipped with a high-performance color digital camera, the camera captures images of the industrial products and transmits the image data to the image processing system. The image processing system matches and searches each image to accurately locate the product's position and orientation, controlling automated equipment such as robotic arms.
