WELDING STAND FOR LONGITUDINAL WELDED PIPES OF DEFINITE LENGTH ASSEMBLING AND WELDING Russian patent published in 2017 - IPC B23K11/87 B23K37/04 B21C37/08 

FIELD: pipes.

SUBSTANCE: invention relates to pipe welding, specifically to welding stands for longitudinal welded pipes of definite length assembling and welding. Stand comprises holder, in bases of which symmetrically to vertical axis upper and side roller cartridges with their displacement adjustment mechanisms are installed, upper pressure rollers with their displacement adjustment mechanisms in form of hydraulic cylinder and drive screw-nut kinematic pair, support rollers, installed at holder bottom and welding machine. Side roller cartridges displacement adjustment mechanism is arranged along holder base radius. Stand is equipped with installed on holder upper part rings sectors and moving carriages with support upper and lower rollers. On sliding blocks upper roller cartridges are mounted with hydraulic cylinders arranged on its opposite ends, on rods of which shackles with holes are fixed. Upper support rollers are made with eccentric. Each carriage has displacement drive.

EFFECT: invention allows to increase pipes quality and reduce gauge setup duration.

1 cl, 10 dwg