Device for cutting or welding tubular workpieces or the like

Details Device for cutting or welding tubular workpieces or the like Device for cutting or welding tubular workpieces or the like

2004-07-08

2008-10-14

Ward, Jessica L (Department: 1793)

Metal fusion bonding

Including means to force or clamp work portions together...

Comprising tube aligning means

C228S145000, C228S147000, C228S151000, C219S607000, C219S06000A

Reexamination Certificate

active

07434718

ABSTRACT:
The invention relates to a device (1) for cutting or welding tubes (3) or similar workpieces, said device comprising a guiding mechanism which is used to control the cutting or welding torch (17) along a pre-determined line and is provided with a stand-type portal (7). Said portal comprises a through opening (8) into which the workpiece (3) to be machined can be guided in the axial direction. A rotary part (14) can be rotated about the axis of the through opening (8) in a motor-driven manner, guiding a holding arm (16) therewith, which carries the cutting or welding torch (17) on the free end thereof. Said holding arm (16) is fixed to the rotary part (14) and embodied in such a way that the cutting or welding torch (17) moves radially in relation to the axis of the through opening (8) and can be brought into various angular positions in relation to the surface of the workpiece (3). Together with a device (20) which is used to carry out a relative movement between the workpiece (3) and the cutting or welding torch (17) in the axial direction of the through opening (8), the movement of the cutting and welding torch (17) is guided in a controllable manner, whereby it does not only follow a pre-determined line but can also be oriented in various positions in relation to the surface of the workpiece (3) during the entire movement.

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