Robot feature tracking devices and methods

Details Robot feature tracking devices and methods Robot feature tracking devices and methods

B - Operations, Transporting

25

J

B25J 9/12 (2006.01) B23K 9/127 (2006.01) B23K 26/04 (2006.01) B23K 26/10 (2006.01) B23K 37/04 (2006.01) B23K 37/047 (2006.01) B25J 9/16 (2006.01) B25J 19/02 (2006.01)

Patent

CA 2292372

Motorized slides are inserted between the end of a robot arm and a robot tool/sensor arrangement to provide additional positioning ability. A control unit of the slides cooperates with the control unit of the sensor to maintain the tool correctly positioned over a feature while the robot arm moves following a programmed path. The control unit of the sensor has look-ahead and additional buffers from which corrected information is determined to compensate for robot teaching inaccuracies, calibration and robot arm response errors. A sensor with two distinct probing zones is used to get information about the position of the tool tip and of the feature to assist in calibrating the sensor/tool relation.

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