Stud welding apparatus

Details Stud welding apparatus Stud welding apparatus

1989-10-10

1990-07-17

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

B23K 920

Patent

active

049422839

ABSTRACT:
Stud welding apparatus comprising a housing, a spring-loaded stud holder which holds a welding stud in welding position by its resilient restoring force, a feed channel through which the stud is delivered into a substantially cylindrical space within the stud holder, and loading means which is movable relatively to the welding stud by a pneumatic piston and which presses the stud into the stud holder against the resilient restoring force, characterized in that the loading means is pivotally attached about an axis fixed in relation to the housing, that at least one lever is disposed between the loading means and the pneumatic piston whereby the pivotal point of said lever on the loading means is spaced by a small distance from its axis of rotation and that loading means, lever and the movement of the pneumatic piston are coordinated so that loading means is pivotable between a loading position, in which the feed channel is cleared, and a position in which the loading means presses stud into the stud holder.

REFERENCES:
patent: 531275 (1896-12-01), Radomski
patent: 3526744 (1970-09-01), Ehrlich
patent: 4163888 (1979-08-01), Ettinger

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