Laser welding system, laser welding method, and emitting device
First Claim
1. A laser welding system comprising:
- a robot configured and arranged to move in accordance with predetermined movement data;
a laser beam emitting section mounted to the robot and configured and arranged to emit a laser beam;
a measuring section configured and arranged to measure a current movement position of the robot with respect to a movement position specified in the predetermined movement data; and
a control unit configured to adjust a laser emission direction in which the laser beam is emitted from the laser beam emitting section based on the current movement position of the robot measured by the measuring section such that the laser beam strikes a predetermined irradiation position.
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Accused Products
Abstract
A laser welding system includes a robot control unit that acquires movement amount measurement values from encoders provided on axes of the robot and calculates the current position of a laser processing head based on the measurement values. Based on the calculated current position of the laser processing head, the robot control unit calculates a laser beam emission direction specifying the direction in which the laser beam should be aimed in order to strike a predetermined laser irradiation position. The robot control unit sends a command indicative of the laser beam emission direction to a processing head control unit which changes the direction of a reflecting mirror provided inside the laser processing head such that the laser beam is emitted in the specified direction.
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Citations
19 Claims
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1. A laser welding system comprising:
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a robot configured and arranged to move in accordance with predetermined movement data;
a laser beam emitting section mounted to the robot and configured and arranged to emit a laser beam;
a measuring section configured and arranged to measure a current movement position of the robot with respect to a movement position specified in the predetermined movement data; and
a control unit configured to adjust a laser emission direction in which the laser beam is emitted from the laser beam emitting section based on the current movement position of the robot measured by the measuring section such that the laser beam strikes a predetermined irradiation position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A laser welding method comprising:
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operating a robot having a laser beam emitting section in accordance with predetermined movement data;
controlling the laser beam emitting section to emit a laser beam onto a predetermined irradiation position of a workpiece to conduct welding;
measuring a current movement position of the robot with respect to a movement position specified in the predetermined movement data; and
adjusting a laser emission direction based on the current movement position such that the laser beam strikes the predetermined irradiation position. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. An emitting device comprising:
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an emitting section configured and arranged to emit an emitted entity;
a moving device configured and arranged to move the emitting section in accordance with predetermined movement data;
a measuring section configured and arranged to measure a current movement position of the moving device with respect to a movement position specified in the predetermined movement data; and
a control unit configured to control an emission direction in which the emitted entity is emitted from the emitting section based on the current movement position measured by the measuring section such that the emitted entity strikes a predetermined position. - View Dependent Claims (18, 19)
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Specification