Patent ID: 6727463
Filing Date: 2004-04-27
Classification: B23K

Abstract:
An arrangement for machining workpiece surfaces extending in three dimensions by a laser, comprising:a stationary laser; an articulated mirror arm, radiation of the laser being coupled into a first end of the articulated mirror arm; a robot arm connected to a robot for guiding the second end of a articulated mirror arm; a holding device for fixing a workpiece; at least one gas nozzle by which a flow of gas is directed to the workpiece surface; a control device for controlling the laser and robot arm; a laser scanner being fastened to the robot arm and connected to the articulated mirror arm in such a way that the beam exiting from the second end of the articulated mirror arm is coupled into the laser scanner; said gas nozzles being arranged at the laser scanner so as to be movable in such a way that they can be directed to the workpiece surface by a gas nozzle propulsion unit communicating with the control device; wherein gas flow and the radiation exiting from the laser scanner via an exit face coincide at a point on the workpiece surface.