Process for the laser beam machining, especially laser beam welding, of components
First Claim
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1. A process for the laser beam machining of components, the process comprising:
- providing a remote laser head;
guiding the laser head with a manipulator with a multiaxial manipulator hand, said remote laser head being arranged externally on said manipulator hand, said laser head emitting a laser beam;
during welding or cutting, guiding the emitted laser beam along a welding or cutting path on the component by orientation modifications and with a variable irradiation angle β
, the guiding including changing the orientation of the laser beam only by pivoting motions of the manipulator hand about at least one of the hand axes resulting in a changing of irradiation angle of the laser beam; and
changing and adjusting at least one or more of a laser power output of the emitted laser beam and a velocity of welding or cutting as a function of the changing irradiation angle β
of the laser beam.
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Abstract
A method for laser beam machining, in particular laser beam welding of bodywork components (14), with the aid of a remote laser head (3). The laser head is guided by a robot (5) including a multi-axial robot hand (7). During the welding process, the emitted laser beam (12) is guided along the welding path (19) on the component (14) by orientation modifications and with a variable irradiation angle beta. said orientation modifications only being produced by pivoting displacements (7) of the manipulator hand (7) about at least one of its hand axes IV, V, VI.
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Citations
20 Claims
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1. A process for the laser beam machining of components, the process comprising:
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providing a remote laser head; guiding the laser head with a manipulator with a multiaxial manipulator hand, said remote laser head being arranged externally on said manipulator hand, said laser head emitting a laser beam; during welding or cutting, guiding the emitted laser beam along a welding or cutting path on the component by orientation modifications and with a variable irradiation angle β
, the guiding including changing the orientation of the laser beam only by pivoting motions of the manipulator hand about at least one of the hand axes resulting in a changing of irradiation angle of the laser beam; andchanging and adjusting at least one or more of a laser power output of the emitted laser beam and a velocity of welding or cutting as a function of the changing irradiation angle β
of the laser beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A process for the laser beam welding of vehicle body parts, the process comprising:
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providing a manipulator with robot basic axes and a manipulator hand having hand axes; providing a laser source; providing a remote laser head, said remote laser head being connected to said manipulator hand such that said remote laser head is located at a spaced location from said manipulator hand; providing a fiber optic cable; connecting said laser source to said remote laser head via said fiber optic cable; guiding the laser head with the manipulator hand; during welding guiding the motion of the hand to move the laser beam along a welding path on the vehicle body part by orientation modifications and with a variable irradiation angle β
, wherein the changes in the orientation of the laser beam are generated only by pivoting motions of the manipulator hand about at least one of the hand axes;changing at least one of laser power and velocity of welding as function of said variable irradiation angle β
. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A device for the laser beam welding of vehicle body parts, the device comprising:
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a manipulator with robot basic axes and a manipulator hand having hand axes; a remote laser head arranged externally to said manipulator hand, said remote laser head emitting a laser beam; a control means for pivoting said manipulator hand about at least one of said hand axes such that the laser beam is guided along a welding path on the vehicle body with a variable irradiation angle β
;a laser beam source arranged in a position external to said manipulator; and a fiber optic cable, said laser head being connected to said laser beam source via said fiber optic cable. - View Dependent Claims (19, 20)
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Specification