Contact device for resistance spot welder

Details Contact device for resistance spot welder Contact device for resistance spot welder

1983-02-09

1985-02-05

Envall, Jr., Roy N.

Electric heating

Metal heating

For bonding with pressure

219119, B23K 1130

Patent

active

044979940

ABSTRACT:
Means for making electrical contact with a pair of spot welding electrodes and workpieces engaged by the electrodes. The means includes two rigid insulating blocks for mounting on each electrode of an electrode pair. Each block has a first electrical conductor for physically engaging the electrode upon which it is mounted and a second electrical conductor for physically engaging an exposed surface of the workpiece the electrode will engage in a welding process. The electrical conductors extend in a direction substantially perpendicular to the electrodes when the blocks are mounted thereon. In addition, means integral with the blocks and conductors for respectively electrically connecting the conductors to a device for measuring the voltage drop between electrodes and between the exposed surfaces of the workpieces when welding current is applied to the workpieces by the electrodes.

REFERENCES:
patent: 2370009 (1945-02-01), Clarke et al.
patent: 3335258 (1967-08-01), Barnhart et al.
patent: 3578942 (1971-05-01), Bugaj

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