Patent DE-102009012858-A1 (DE)
Title: Device for surface treatment of a workpiece or component such as aircraft wing, comprises a platform on which a laser light source is arranged, and a robot unit that is connected with the platform and has a beam-turning unit
Inventor: SCHULZ OLAV G
IPC: B23K26/42
Filed: 2009-03-15
Abstract: The device comprises a platform (22) on which a laser light source (24) is arranged, a robot unit (25) that is connected with the platform and has a beam-turning unit at spatially movable end, and a beam guiding system for guiding the light from the light source up to beam-turning unit such as process head (29). The beam guiding system consists of a light beam sender tightly or movably connected with the platform, and a beam receiver tightly or movably connected with the beam-turning unit. The beam guiding system consists of a light beam sender tightly or movably connected with the platform. The device comprises a platform (22) on which a laser light source (24) is arranged, a robot unit (25) that is connected with the platform and has a beam-turning unit at spatially movable end, and a beam guiding system for guiding the light from the light source up to beam-turning unit such as process head (29). The beam guiding system consists of a light beam sender tightly or movably connected with the platform, and a beam receiver tightly or movably connected with the beam-turning unit. A control unit is provided with a sensor for the detection of relative position and/or the relative movement between the sender and emitter, and a recontrol unit is provided for the warranty of constant relative spatial alignment of receiver to the sender. The beam sender and the beam receiver are arranged to each other in a changeable interval. The light source is carbon dioxide laser, neodymium-yttrium-silver laser, fiber laser or diode laser. The wavelength of the laser beam is 10.6 micrometers and is adjustably formed from the beam source up to the beam-turning unit by means arranged in the area of the platform. Reflectors are provided for the formation of beam path, where two reflectors are variably adjustable to each other in the removal as means arranged in the area of the beam guidance. Further sensors for the detection of a deviation of the beam from the central position of the reflector in the receiver and/or a regulation unit for switching off in infringement of given deviation of the beam are provided. An optical scanning unit is arranged in interval to beam for the detection of object between the sender and receiver for the formation of security unit for switching off the beam. The sensor is formed as a lateral effect diode. A system platform is provided as platform and has two application units such as auxiliary substances, consumable materials, energy system, control units and regulation unit. A buckling arm robot or a gantry robot is used as robot-unit. A driving system (21) having an omnidirectional drive is provided for practicable formation of the platform. A vehicle is provided that is coupled to the platform. The control unit is formed so that the movement is incorporated by the omnidirectional drive in the control of the automatic use. The laser processing of workpiece or component is removing of paint, cleaning, activation, repairing, mechanical ablation, masking for producing mold and structuring on the surface. The surface treatment is surface analysis such as non-destructive-testing or mechanical beam process comprising dry ice, plastic beam means, glass beads or corundum by different laser technologies and/or other mechanical or other automatic processing such as drilling, welding, milling, mounting, cutting or lacquering. An adapter is equipped for connecting the process head with the robot-unit. The adapter is formed so that it couples the process heads on the robot-unit. Independent claims are included for: (1) a beam guiding system; and (2) a method for processing a workpiece or component.