Dual tip rotating welding electrode

Details Dual tip rotating welding electrode Dual tip rotating welding electrode

1990-08-06

1992-05-19

Evans, Geoffrey S.

Electric heating

Metal heating

Wire, rod, or bar bonding

B23K 1131

Patent

active

051151111

ABSTRACT:
Two parallel elongated closely spaced electrodes for welding electronic circuit components are mounted for limited rotation about an axis extending generally longitudinally of the electrodes to allow the electrode pair to be oriented with respect to a workpiece without angularly moving the workpiece. The electrodes are mounted in a pair of mutually aligned and mutually insulated bobbins against which are firmly pressed a pair of contacts for conducting weld current between the electrodes. The bobbins and the electrodes mounted therein are free to rotate relative to the fixed contacts, but the latter are firmly pressed against the bobbins to provide increased contact pressure and decreased electrical resistance between the contacts and bobbins and to provide a relatively large surface area for such contact.

REFERENCES:
patent: 3348018 (1967-10-01), Wood
patent: 4171477 (1979-10-01), Funari
patent: 4465913 (1984-08-01), Stokoe et al.
patent: 4500769 (1985-02-01), Tincher
patent: 4724294 (1988-02-01), Klein
patent: 4762976 (1988-08-01), Miller et al.
patent: 4894507 (1990-01-01), Thode
patent: 4916271 (1990-04-01), Lee et al.

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