The automobile industry is a comprehensive industry developed on the basis of many related industries and related technologies. Today, laser welding machine production lines have appeared on a large scale in the automobile manufacturing industry and have become one of the outstanding achievements of the automobile manufacturing industry. Many automobile manufacturers use laser welding and laser cutting processes. High-strength steel plate laser welding assembly parts are increasingly used in body manufacturing due to their excellent performance. Due to the large volume and high degree of automation in the automobile industry, laser welding equipment will develop in the direction of high power and multi-channel. Laser welding machine is a heat treatment technology that uses laser beam as heat source. Compared with electron beam plasma beam and general mechanical processing, laser welding machine has small laser focus and high power density, and can weld certain alloy materials with high melting point and high strength. There are many other advantages. For example, in the automotive industry. 1. Car welding: Online laser welding in the automotive industry is widely used in assembly and connection of body stamping parts. The main applications include roof cover laser welding, trunk cover laser welding and frame laser welding; another important laser welding application for the body is the laser welding of body structural parts (including doors, body side frames and pillars, etc.). The reason for using laser welding is to increase the strength of the body and solve the difficulties of conventional resistance spot welding in some parts. 2. Laser welded blanks of varying thickness: Using laser welded blanks of varying thickness in car body manufacturing can reduce the weight of the car body, reduce the number of parts, improve safety and reliability, and reduce production costs. 3. Welding of gears and transmission parts. In addition, various parts of the gearbox can be welded on this equipment, especially the differential case and drive shaft in the automobile gearbox, which are usually welded after the production of individual parts. In order to adapt to the welding of various parts, a spacious maintenance door is set inside the equipment, which is very convenient and time-saving for replacement or maintenance. A new conveying method is adopted, which greatly improves the flexibility of the workpiece conveying channel and greatly reduces the replacement time in small batch production. The laser welding machine for automotive parts adopts a double-station working platform, robot intelligent operation, and is equipped with a swing welding head. It collimates the parallel light through a collimating lens and focuses it on the workpiece for welding. Using a simple universal instrument, it can perform flexible transmission and non-contact welding on welding precision parts that are difficult to access in large molds, thus having greater operational flexibility. Product features of laser welding machine for automotive parts: 1. A manipulator with fiber laser can greatly improve production efficiency. 2. The flexible working platform can design fixture combinations according to customer needs to meet the needs of automated welding production. 3. Continuous wave output, good welding compactness and high strength. 4. The laser heat is concentrated, the welding speed is fast, and the thermal deformation is small. 5. Non-contact atmospheric welding process. Because the energy comes from the laser, there is no physical contact with the workpiece, so no force is applied to the workpiece, and the magnetic field has no effect on laser welding. 6. Due to the low average heat input and high processing accuracy, the processing cost can be reduced. In addition, the operating cost of laser welding is low, which can reduce the cost of the workpiece. 7. It is easy to automate, and the beam intensity and fine positioning can be effectively controlled.