Device and method for correction of robot inaccuracy

Details Device and method for correction of robot inaccuracy Device and method for correction of robot inaccuracy

1987-07-28

1989-05-16

Smith, Jerry

Boots, shoes, and leggings

36416701, 901 2, 901 16, G06F 1546, G05B 1942

Patent

active

048315494

ABSTRACT:
A method and device for improving orientation and/or location accuracy of a programmable robot with respect to a target object. The method consists of calibrating the position of a terminal control frame associated with a robot end-effector which is coupled to a robot distal link. Separated reference positions external from the robot are identified, as to geometry and spatial data. This identification data is stored for later recall and comparison for use in determining a localized relative frame of reference. The robot end-effector is moved to a first reference position and a rigid body error correction is determined. This correction is stored in computer memory for application to later computer movement.

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patent: 4587618 (1986-05-01), Oguchi
patent: 4590578 (1986-05-01), Barto, Jr. et al.
patent: 4613943 (1986-09-01), Miyake et al.
patent: 4616326 (1986-10-01), Meier et al.
patent: 4642781 (1987-02-01), Szonyi
patent: 4670849 (1987-06-01), Okada et al.

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