Non-planar orbital welder

Details Non-planar orbital welder Non-planar orbital welder

1998-08-05

2000-12-05

Shaw, Clifford C.

Electric heating

Metal heating

Of cylinders

21912511, 21913001, B23K 912

Patent

active

061569917

ABSTRACT:
An orbital welder includes a weld tip, a rotational controller, and a translational controller. The rotational controller causes the weld tip to rotate about an axis passing through the tube to be welded. As the weld tip rotates about the axis, the translational controller causes the weld tip to move longitudinally with respect to the axis, forming non-planar orbital welds. In one embodiment, the translational controller includes a rotor disposed to rotate about the axis. The translational controller further includes a carrier that is slidably attached to the rotor, and the weld tip is fixed to the carrier. As the rotor rotates about the axis, the carrier moves longitudinally with respect to the axis, such that the weld tip follows a non-planar orbital weld pattern. In a particular embodiment, a portion of the carrier is biased against a surface a cam block. The surface of the cam block is contoured to displace the carrier longitudinally with respect to the axis of rotation as the rotor rotates about the axis.

REFERENCES:
patent: 3534199 (1970-10-01), Downey et al.
patent: 3797813 (1974-03-01), Roesel
patent: 4438600 (1984-03-01), Berbakov
patent: 4581518 (1986-04-01), Takahashi et al.
patent: 4629853 (1986-12-01), Yttergren et al.
patent: 5107090 (1992-04-01), Caillet et al.
patent: 5220144 (1993-06-01), Jusionis
patent: 5310982 (1994-05-01), Jusionis
patent: 5837966 (1998-11-01), Timmons, Jr.

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