Method and device for detecting abrasions of electrodes in...

Details Method and device for detecting abrasions of electrodes in... Method and device for detecting abrasions of electrodes in...

2005-09-13

2005-09-13

Williams, Hezron (Department: 2856)

Measuring and testing

Inspecting

C219S061500, C219S091100, C219S121280

Reexamination Certificate

active

06941826

ABSTRACT:
A method for detecting abrasion of both a moving side electrode (2) and a fixing side electrode (3) of a stationary type welding gun in which the moving side electrode (2) and the fixing side electrode (3) opposed to the moving side electrode (2) are provided and a workpiece (W) held by a robot (R) is to be welded, wherein reference positions of electrode ends of both of the electrodes (2) and (3) are read by an electrode end detecting device (7) attached to the robot (R), positions of the electrode ends are then detected by the electrode end detecting device (7) in a middle of welding, and amounts of abrasion of both of the electrodes (2) and (3) are calculated from a difference between the reference positions.

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