1. Auto body welding (1) Resistance spot welding Auto body welding includes assembly welding of frame, floor, side wall, door and body assembly, and a large number of resistance spot welding processes are used in the welding production process. According to statistics, there are about 3,000 to 4,000 resistance spot welds on each car body. In the automotive body welding process, the spot welding process is still in a dominant position, and the application of resistance spot welding technology has realized the mass production and automation of automobile body manufacturing. There are three main types of resistance spot welding equipment used in automobile body welding production lines: 1 Hanging spot welder is mainly used for the positioning welding station on the body welding production line, or for the welding of components with complex solder joints (not suitable for automation). Manual work, degree of automation low. 2 Multi-spot welding machine Multi-point welding process has the advantages of high production efficiency and small welding deformation. The disadvantage is that it cannot adapt to the production of a variety of models, and the flexibility is poor. The 3 spot welding robot spot welding robot is widely used in modern body welding production lines, which can improve the automation of welding production, reduce the labor intensity of operators, improve production efficiency and ensure welding quality. Spot welding robots are mainly used for repair welding stations for body welding, body assembly welding stations, etc. Moreover, due to the adoption of the spot welding robot, the flexible production method of the body welding is realized--multi-variety and less batch mixing production. Spot welding robots usually consist of a robot body, a robot control device, a spot welding tongs, and a resistance welding controller (time controller). The current spot welding robot system uses the following advanced technologies: First, the inverter welding power supply reduces the weight and volume of the welding transformer, and the transformer and the welding tongs are made into a one-piece robot spot welding tong. The application of the integrated welding tongs is beneficial to the spot welding robot to achieve trajectory movement and attitude change within its range of motion. The use of inverter welding power supply can also improve the electrical performance of the welding machine, improve the thermal efficiency of the power supply, and achieve energy saving. Second, the automatic replacement of the welding tongs The modular design makes it possible to standardize the connection interface between the robotic welding tongs and the primary side water electrical piping. The device is equipped with several different types of welding tongs, and the spot welding robot can complete the automatic replacement in a few seconds according to the program. The welding tongs can be quickly and automatically replaced, and the use of a spot welding robot can adapt to the welding requirements of various parts of the body, and can also adapt to the needs of production of various types of vehicles. Third, the robot control system can not only control the movement of the robot body, but also automatically control the resistance welding time controller, issue welding start instructions, automatically control and adjust welding parameters (voltage, current, pressure, Time cycle), control the size stroke and clamping release action of the spot welding tongs. At the same time, it also has automatic fault diagnosis, alarm and other functions, such as: the electrode and the workpiece being welded, the fault alarm when the compressed air pressure is too low. (2) In the arc welding automobile body welding production, the manual welding repair work is mainly carried out in the main welding station of the frame, the floor, etc., and the welding station of the sub-frame halving assembly has the application of the solitary welding robot. 2. Auto parts welding Welding processes such as spot welding, projection welding, seam welding, butt welding and arc welding are widely used in the production of automotive parts. For example: beam assembly bracket spot welding, transmission shaft balance sheet projection welding, automotive fuel tank seam welding, automotive rim continuous flash butt welding, automotive steering arm, muffler, arc welding of purifier housing, etc. In the production of auto parts in China, it has been dominated by welding by hand welding and special machine welding for many years. The labor intensity is high, the working environment is bad, the welding quality is not easy to guarantee, and the flexibility of production is also very poor. The need for car production. In recent years, due to the large number of applications of welding robots, the automation level and production efficiency of parts production have been improved, and the production has been more flexible, and the welding quality has been guaranteed. ABS Ceiling Fan
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