Apparatus for resistance welding
AssigneeHeinz Finzer KG
InventorRobert Wald
Life of this patent
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Abstract
Apparatus for resistance welding consisting of two electrodes that face one another and are biased toward one another by a spring force. Each electrode is held by an electrode support through which an electro-magnetic force is generated to urge the supports away from each other and augment the bias exerted thereon, by converting the movement of the electrode supports away from one, into movement of the electrodes toward one another.
Claims6
In an electric welding apparatus having opposing electrodes spaced from each other, a pair of relatively movable supports, resilient means for biasing said electrodes toward each other and current supply means connected to the supports for conducting welding current therethrough to the electrodes, the improvement residing in said electrodes (10, 11) being mounted in fixed relation to the supports (13, 14, 24), said welding current conducted through the supports electromagnetically inducing movement thereof away from each other and means (14a, 24a) for mechanically transforming said movement of the supports away from each other into movement of the electrodes toward each other to augment said biasing of the electrodes toward each other and thereby maintain the electrodes in continuous workpiece contact.
Dependencies are inferred from the claim text.