Machine for flash butt welding of pipes

Details Machine for flash butt welding of pipes Machine for flash butt welding of pipes

B - Operations, Transporting

23

K

78/56

B23K 11/04 (2006.01) B23K 11/00 (2006.01)

Patent

CA 1281918

MACHINE FOR FLASH BUTT WELDING OF PIPES Abstract Disclosed is a machine for flash butt welding of pipes located in the bore of the pipes welded together, a housing whereof is provided with rigidly attached there- to a first supporting disc and a second supporting disc and with a pipe flashing-and- upsetting means which has a carrier and a hydraulic actuator for displacing said means along the housing and also has two pipe clamping means each whereof is provided with a carrier and a self-contained hydraulic actuator imparting axial motion to this clamping means. Bellcranks located equidistantly apart all the way around the periphery of the outside surface of each carrier of pipe clamping means are pivotally attached thereto with provision for rocking in the radial direc- tion, whereby one end of every bellcrank interacts with rigid stops provided on the first supporting disc and on that side of the carrier of pipe flashing-and- -upsetting means which faces the pipe clamping means when rocking in one direction and with a spring-loaded stop provided on the carrier of each pipe clamping means when rocking in the opposite direction, while the opposite end of every bellcrank is provided with an aligning roller contacting the inner wall of the pipes.

501603

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