Method of preventing mis-emission of a laser beam in a laser...

Details Method of preventing mis-emission of a laser beam in a laser... Method of preventing mis-emission of a laser beam in a laser...

B - Operations, Transporting

25

J

342/15, 327/1.3,

B25J 19/06 (2006.01) B23K 26/04 (2006.01) B23K 26/10 (2006.01) B23K 26/42 (2006.01) G05B 19/4063 (2006.01) H01S 3/104 (2006.01)

Patent

CA 2032524

A B S T R A C T A laser-beam mis-emission preventing method capable of improving safety of a laser robot. Upon supply of power to the laser- robot. a processor of a robot control unit (10) compares a predetermined value with an angle (.delta.) formed between a horizontal plane (XY plane) and an axis (8a) of a laser nozzle (8) and computed based on joint angles (W, U, r, .beta.) (S1 - S3). When the laser nozzle angle (.delta.) is less than the predetermined value, an interlock signal delivered to the laser oscillator (30) is set to turn off the power of the laser oscillator, thereby bringing the laser oscillator into a condition incapable of laser oscillation (S5). This prevents mis-emission of the laser beam which occurs due to deficiency of a robot operating program, erroneous manual operation, etc., and which can damage the human body or peripheral devices.

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