What configurations does the welding robot include?
Compared with other welding processes, the spot welding technology is relatively low, so it will not have high requirements for the robot used. Even so, we have to master the basic functions of spot welding robots clearly.
In the process of spot welding, only point position control is needed, and the trajectory of the welding clamp between points is not strictly required. Because of this, the spot welding robot not only needs to have sufficient load capacity, but also needs to be fast when moving from point to point, with stable movements and accurate positioning, so as to reduce the time for shifting and improve work efficiency.
How much load capacity a spot welding robot needs depends largely on the type of welding tongs used. Generally, for welding tongs separated from a transformer, a robot with a load of 30 to 45 kg is sufficient. However, on the one hand, this type of welding tongs is not conducive to the robot extending the welding tongs into the workpiece for welding due to the long secondary cable wire length. On the other hand, the cable wires swing constantly as the robot moves, and the cable is damaged faster . Therefore, integrated welding tongs have been gradually replaced.
The mass of this welding clamp together with the transformer is about 70kg. Considering that the robot must have sufficient load capacity, the welding clamp can be sent to a space location for welding with a large acceleration. Generally, a heavy robot with a load of 100 to 150kg is selected.