Optics: measuring and testing – Angle measuring or angular axial alignment – Relative attitude indication along 3 axes with photodetection
Patent
1995-07-14
1997-09-16
Hellner, Mark
Optics: measuring and testing
Angle measuring or angular axial alignment
Relative attitude indication along 3 axes with photodetection
901 3, 901 9, 901 47, G01B 1126, B25J 900
Patent
active
056686285
ABSTRACT:
A robot is moved to a laser sensor detection angle adjustment position, and scanning with a laser beam is started. As this is done, a reading-scanning operation of a CCD light detector of a laser sensor is executed repeatedly, and cell numbers i for maximum detection outputs and their output values .beta.i are stored. When the laser beam scanning is finished, the individual output values .beta.i are compared with a reference value .alpha.. If all the values .beta.i are not greater than the reference value .alpha., then the robot attitude is changed by a small angle, and repetition of laser beam scanning, reading-scanning of the CCD detector, storing of cell numbers i for the great detection output and their output values .beta.i and comparison between the values .beta.i and the reference value .alpha. are repeated. An attitude .phi. for the point of time when the reference value .alpha. is exceeded by all the values .beta.i is taught to the robot, and a welding operation is performed by moving the robot along a step corner line of a workpiece in a manner such that an instruction path is corrected in accordance with a conventional real-time tracking system based on the laser sensor without changing the robot attitude .phi..
REFERENCES:
patent: 4590577 (1986-05-01), Nio et al.
patent: 4753569 (1988-06-01), Pryor
patent: 4808064 (1989-02-01), Bartholet
patent: 5053976 (1991-10-01), Nose et al.
patent: 5280179 (1994-01-01), Pryor et al.
patent: 5302833 (1994-04-01), Hamar et al.
patent: 5321353 (1994-06-01), Furness
patent: 5374830 (1994-12-01), Pryor
patent: 5488470 (1996-01-01), Ooenoki
Fanuc Ltd.
Hellner Mark
LandOfFree
Detection angle control method for laser sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Detection angle control method for laser sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection angle control method for laser sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-222099