在车身焊接中得到了广泛应用。 With the increase of modern automobiles, the requirements of the automotive manufacturing industry for welding accuracy and speed have become higher and higher, and the individual needs of users are also increasing. In order to meet the market demand for multiple models and batches, To improve the flexibility and elasticity of the production capacity of the body shop, auto soldering machines for auto parts have been widely used in body welding.
The quality of body spot welding directly affects the strength and safety of the car body. Spot welding equipment is the most widely used in the production of automobile bodies due to its easy mechanization, low cost, mature technology and complete supporting facilities. Nowadays, it has become a trend to fully automate the spot welding process. Robotic spot welding systems have been widely used and are gradually replacing manual spot welding. The system includes a robot body, a robot controller, a spot welding controller, an automatic electrode grinder, a pneumatic spot welding clamp, and a water and gas control unit for water and gas supply.
Pneumatic welding tongs are used as spot welding actuators. At present, integrated welding tongs are commonly used, that is, the welding transformer is installed behind the welding tongs, which reduces the loss of secondary cables and improves the welding quality. Due to the use of integrated welding tongs, the transformer must be miniaturized as much as possible to increase the payload of the robot. For large-capacity transformers, IF inverter technology has begun to be used: the 50Hz power frequency is changed into 600 ~ 1000Hz AC and then rectified, so that the transformer volume is reduced and lightened. The electrode assembly of the pneumatic welding tongs is basically similar to the manual welding tongs in form, and completes the contact with the workpiece and the effect of welding on electricity. In order to reduce the maintenance and renovation costs, the welding tongs assembly has a modular trend. The spot welding operation is stable and reliable, and the repeatability is high, which can replace the heavy manual labor of people, and improves the welding quality and the flexibility of the production line.
充分满足了柔性混线生产的需求，实现了短时切换或无需切换的全柔性生产模式。 The automatic soldering machine for auto parts fully meets the needs of flexible mixed line production, and realizes a short-time switching or a fully flexible production mode without switching. In order to save construction cost and site, a robot at most stations of the production line is transformed into one that can carry more than two welding tongs or hand tools. The automatic tool changer can be used to quickly switch between welding tongs.