Electric heating – Metal heating – For deposition welding
Patent
1981-02-23
1984-09-11
Envall, Jr., Roy N.
Electric heating
Metal heating
For deposition welding
21912511, 219159, B23K 904
Patent
active
044712014
ABSTRACT:
An apparatus and method capable of applying weld material to metal parts on a generally automatic basis. The apparatus and method are uniquely adapted to apply weld material to the journals and crankpins and crank arms of an automotive type crankshaft on a generally automatic basis. The apparatus comprises a frame and a head stock and tail stock for rotatably supporting a crankshaft relative to the frame. A carriage is shiftable relative to the crankshaft and in a direction generally parallel to the central axis of the crankshaft. A welding torch is carried by the carriage and shiftable longitudinally and generally parallel to the central axis of said crankshaft. A torch positioning mechanism in said carriage includes a member simultaneously moveable in two mutually perpendicular directions by a drive mechanism which also causes rotation of the crankshaft. The movement of the member causes the welding torch to move in a generally true circular path so that the tip of the torch will closely follow to orbiting movement of the crank pins and the journals of the crankshaft. A modified form of torch positioning mechanism which uses a pair of rotating members to cause orbital movement of a welding torch type is also disclosed.
REFERENCES:
patent: 2997888 (1961-08-01), Rust
patent: 3305663 (1967-02-01), Janssen
patent: 3978310 (1976-08-01), Gleason
patent: 4271346 (1981-06-01), Hardy
Envall Jr. Roy N.
Pressteel Company
Sigda Catherine M.
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