Patent ID: 9120174
Filing Date: 2015-09-01
Classification: B23K,Y10S

Abstract:
1. A welding robot for resistance welding, comprising a welding tongs including a tongs drive and two welding electrodes adapted to be pressed against one another by the tongs drive such that during operation of the welding robot, the welding electrodes press against at least two objects that are to be welded together by resistance welding, a welding current generator connected to the welding electrodes for supplying the welding electrodes with electric energy during the resistance welding, an industrial robot including a robot arm and a robot control device for moving the robot arm, wherein the robot arm includes successively disposed links and drives connected to the robot control device, wherein the welding tongs is attached to the robot arm, wherein the robot control device is connected to the welding current generator and the tongs drive, and a computer program running on the robot control device, whereby the control device controls the drives of the robot arm for its movement, controls the tongs drive in a regulated manner such that during the resistance welding the force applied to the objects is controlled and a predetermined electric target welding resistance is applied to the welding electrodes, and controls the welding current generator in such a manner that said generator supplies the welding electrodes with a predetermined electric energy, wherein the computer program includes a first bidirectional interface to the welding current generator, by which the robot control device communicates with the welding current generator via the computer program.