Resistance welding apparatus with gun-arm mounted transformer

Details Resistance welding apparatus with gun-arm mounted transformer Resistance welding apparatus with gun-arm mounted transformer

1989-12-13

1991-12-31

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

219108, B23K 1124

Patent

active

050774581

ABSTRACT:
A resistance welding apparatus mounted on a robot arm includes a transformer having primary and secondary windings. Two gun arms supporting respective welding electrodes in confronting relation to each other are relatively movable toward and away from each other. Conductors extending from the secondary winding are electrically connected to one of the welding electrodes through one of the gun arms, and the transformer is supported on said one gun arm. Rectifiers are used which have terminals engaging said one gun arm and opposite terminals engaging the conductors. The rectifiers and the conductors are securely joined to the one gun arm.

REFERENCES:
patent: 4485289 (1984-11-01), Schwartz
patent: 4496821 (1985-01-01), Burgher et al.
patent: 4559438 (1985-12-01), Nakadate et al.
patent: 4577085 (1986-03-01), Burgher et al.
patent: 4789849 (1988-12-01), Ballard et al.

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