Welding robot is divided into two major categories of arc welding robots and welding robots. Arc welding robot can be applied in all arc welding, cutting and similar industrial methods.

A complete set of welding robot systems, including robot manipulator control systems, welding equipment, welding holding device. The two groups take turns to enter the robot operating range of the rotary table on the holding device.

The basic working principle of the robot teaching and playback by the user-guided welding robot, step by step according to the actual task of operating again, the robot guided the process of automatic memory shows to teach every movement of the position, posture, motion parameters Welding Electrode parameters, and automatically generate a continuous implementation of all operating procedures. Completion of the teach only to the robot a start command, the robot will accurately teach the action, step by step to complete all operations, the actual teach and reproducibility, this approach is time-consuming and relatively long. The most common range is shielded arc welding of structural steel and chrome-nickel steel, metal active gas (CO 2 welding, MAG welding), aluminum and special alloy melting inert gas shielded arc welding (MIC welding), chrome-nickel steel and aluminum inert gas protection Welding Rod and submerged arc welding.

Arc welding robot is usually more than five degrees of freedom, while the trajectory and attitude of the arc welding robot of six degrees of freedom can guarantee that the torch of any space. Point to point the way to move the speed up to 60m/min above its trajectory repeat accuracy of ± 0.2mm. The arc welding robot has a swing within the linear and circular interpolation functions, a total of six swing to meet the welding process requirements, the robot load is 5kg.