Apparatus for welding in vertical, horizontal and slanting posit

Details Apparatus for welding in vertical, horizontal and slanting posit Apparatus for welding in vertical, horizontal and slanting posit

1982-10-20

1985-08-13

Envall, Jr., Roy N.

Electric heating

Metal heating

Wire, rod, or bar bonding

219101, 219161, B23K 1102

Patent

active

045352135

ABSTRACT:
A welding apparatus includes a mechanical hand assembly suspended from a support assembly rotatably mounted on a movable base. The hand assembly includes a first pair of mechanical hands connected to a hydraulic cylinder and a second mechanical hand coaxially movable relative to the first mechanical hand. Each mechanical hand functions as an electrode during welding, and comprises a movable gripping member pivoted relative to a fixed gripping member by a hydraulic actuator. The support assembly comprises an elongated, counterbalanced beam which is length-adjustable relative to a rotatable support pedestal mounted on a movable base, and may include a pulley and cable supporting the hand assembly to provide adjustment in the vertical position of the handling assembly. The hydraulic system includes controls to effect grasping by the mechanical hands of the elements to be welded and coaxial longitudinal movement of the hands to bring together the elements for joining. The apparatus is particularly suitable for welding reinforcing rods, one of which may be partially embedded and having a length protruding in any spatial orientation.

REFERENCES:
patent: 2967925 (1961-01-01), Rietsch
patent: 3624345 (1971-11-01), Armstrong
patent: 3694613 (1972-09-01), Ballard et al.
patent: 4153830 (1979-05-01), Baba et al.

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