×

Method of teaching welding robot

  • US 5,898,285 A
  • Filed: 02/24/1998
  • Issued: 04/27/1999
  • Est. Priority Date: 03/11/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of teaching a welding robot, said welding robot comprising a spot welding gun which is mounted via a gun support bracket on an operating end of said welding robot, said spot welding gun comprising:

  • a gun main body;

    a stationary electrode tip which is mounted on said gun main body so as to be immovable relative thereto;

    a movable electrode tip which is mounted on said gun main body and is operated to open and close by a pressing source, said gun main body being movable by a driving source relative to said gun support bracket in a direction in which both said electrode tips lie opposite to each other, said method comprising the steps of;

    in teaching said spot welding gun by the movement thereof to each weld spot position of a workpiece, moving said movable electrode tip at said each weld spot position in a closing direction relative to said gun main body by said pressing source in a state in which said gun main body is kept stationary at a predetermined position relative to said gun support bracket, and moving said stationary electrode tip in a closing direction by a relative movement of said gun main body relative to said movable electrode tip after the movable electrode tip has come into contact with the workpiece;

    detecting a position at which said stationary electrode tip contacted the workpiece; and

    storing said position as teaching data.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×