Method of controlling electrode force of spot welding gun

Details Method of controlling electrode force of spot welding gun Method of controlling electrode force of spot welding gun

1998-02-24

1999-11-23

Ryan, Patrick

Metal fusion bonding

Process

With clamping or holding

228102, 219 8661, 219 867, B23K 522, B23K 100, B23K 912, B23K 3702

Patent

active

059884860

ABSTRACT:
In a spot welding gun which is made up of a gun main body which is operated for equalization by a driving source, a stationary electrode tip which is immovable relative to the gun main body, and a movable electrode tip which is connected to a pressing source, both electrode tips are pressed to a workpiece with an even force, to thereby perform a high quality spot welding. The driving source is controlled such that the electrode force of the stationary electrode tip, by the driving source, to the workpiece becomes substantially zero. In this manner, there occurs no difference in the electrode forces by both the electrode tips to the workpiece.

REFERENCES:
patent: 4447697 (1984-05-01), Dunne et al.
patent: 5340960 (1994-08-01), Takasaki et al.
patent: 5449875 (1995-09-01), Ito et al.
patent: 5898285 (1999-04-01), Nagasawa et al.

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