1. At present, laser marking, cutting, welding, micromachining, etc. all use the technology of machine vision. Machine vision can make the laser automatically locate and align, and then make the next move to make the machine more intelligent.

2. Machine vision is introduced into the laser processing industry, and industrial cameras are used to detect the processed objects instead of human eyes. The resolution and frame rate can be selected according to the processing requirements to improve the defects of artificial vision; Using machine vision technology can also accurately locate the workpiece, which not only saves the expensive and heavy fixture cost, improves the machining accuracy and ensures the quality, but also can carry out continuous and accurate operation and speed up the work efficiency. At present, machine vision technology is widely used in high precision machining fields such as laser cutting, laser welding, laser marking and laser micromachining. Let's take a closer look.

3. Application of CCD vision inspection in laser processing industry

1). Laser cutting

Machine vision is used for laser cutting, and guiding laser cutting can make the product cut accurately, with smooth edges, and easily cut out any desired shape and size. Laser cutting will be used in automobile industry, semiconductor industry, mold industry, raw material industry, consumer goods manufacturing industry and aerospace industry. The specific applications are wafer cutting, FPC flexible printed circuit board cutting, cloth label/leather cutting, automobile parts cutting and so on.

2). Laser welding

In the process of laser welding operation, visual positioning technology is introduced to provide positioning parameters for the movement of laser welding equipment, which can realize high-precision laser welding. While effectively improving the work efficiency, it can also avoid the above defects and improve the production process, thus greatly saving the system cost. The main function of machine vision in this process is to automatically identify the incoming materials of workpieces, distinguish the welding areas of different workpieces, and automatically and accurately search and locate the preset areas to be welded of each workpiece. After the welding area is automatically and accurately positioned, the welding position coordinates are output in real time through data communication to guide the laser to accurately weld the preset trajectory. In the application of advanced welding, the size, position and appearance of welding traces can be re-examined after welding is completed through software upgrade, so as to realize real-time monitoring of welding quality in the production process and greatly improve production efficiency. Specific applications such as automobile body steel plate welding, battery welding, pacemaker, sealed relay and so on.

3). Laser marking

Using vision system to assist laser marking can give full play to the advantages of laser processing, which can not only solve the problem of marking accuracy, but also have high adaptability, no need to use fixtures, reduce costs, improve the automation process of product line, reduce manual participation and improve system efficiency. Laser marking is widely used in all kinds of materials and almost all industries. Machine vision-guided positioning can effectively improve production efficiency and ensure the consistency of product quality for large-scale marking operations with fragile materials, small target size and high positioning accuracy. Specific applications include IC marking, electronic consumer goods marking, automobile parts marking, vamp marking and so on.

4. Laser micromachiningLaser micromachining includes fine machining methods such as scribing and resistance adjustment, which will cause great errors in human judgment. Machine vision can clearly locate the machining area and guide the laser to work with as little error as possible. Specific applications such as laser resistance adjustment, thin film solar cell scribing, etc.4. The introduction of machine vision technology in laser processing industry can improve the precision and intelligent automation function of laser processing equipment, meet the quality requirements of large-scale production of modern industrial products, meet the production consistency and meet the requirements of national laws and regulations, and ensure the yield of finished products, thereby saving costs and promoting the rapid development of enterprises.