Compared with other welding processes, spot welding has relatively low requirements, so it

The requirements for common robots are not likely to be very high. Even so, we must clearly grasp the points

The basic elements of a welding robot.

In the spot welding process, only the positioning point operation needs to be done, and the welding clamp is between the points.

The movement trajectory is not strictly controlled. Because of this, spot welding robots must not only have sufficient

Sufficient load capacity, and the speed should be convenient and the posture should be stable when moving between points.

Marking should be precise to reduce shifting time and improve efficiency.

How much load capacity the spot welding robot needs depends largely on the commonly used

Welding clamp method, generally for machines with 30-45kg load, with welding clamps separated from the transformer

However, this type of welding tongs not only has a long cable, but also a large electromagnetic energy loss.
It also hinders the robot from inserting the welding tongs into the workpiece for welding; at the same time, the wires move along with the robot.

The continuous shaking will damage the cable quickly. Therefore, the current stage has gradually changed to separate welding clamp

This type of welding tongs together with the transformer weighs about 70kg. Considering that the robot must have enough
The load capacity can move the welding clamp to the space position for welding with a large acceleration.
Heavy-duty robots with a load capacity of 100 to 150 kg are used