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Robot locus control system

  • US 4,495,588 A
  • Filed: 03/18/1982
  • Issued: 01/22/1985
  • Est. Priority Date: 03/26/1981
  • Status: Expired due to Term
First Claim
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1. A method for robot arm locus control comprising the steps of:

  • a. teaching the robot coordinates of a first three representative points and first work points of an object to be worked on by the robot;

    b. teaching the robot coordinates of a second three representative points of the object when a change in the relative position of the robot and the object occurs, said second representative points corresponding to said first representative points;

    c. calculating coordinates of second work points from data representative of the relative positions of said first representative points and first work points and said second representative points, so that said second work points define a locus at a position different than that of said first work points, said second work points corresponding to said first work points;

    d. using said coordinates of said second work points to provide commands for the robot; and

    e. controlling the robot to follow said commands.

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