WELDING STAND FOR ASSEMBLING AND WELDING FINITE LENGTH TUBES Russian patent published in 2005 - IPC

FIELD: welded tube production, namely welding stands for assembling and welding straight-seam tubes of finite length.

SUBSTANCE: welding stand includes welding apparatus, upper pressure roller and holder in bases of which upper and lateral roller cassettes having mechanisms for adjusting their motion are mounted in casings. Mechanism for adjusting motion includes kinematic pair screw-nut, driven gearing, housing, bracket, pin, rectangular axle, screw having cross groove in head, tie rods nut with left and right threads. Head of screw of kinematic pair is coupled through pin with slide block mounted in base of holder. Driven gear wheel of gearing is rigidly engaged with nut of kinematic pair and it is arranged in case mounted on bracket. Bracket is provided with opening for screw of kinematic pair. Casing of roller cassette is jointly mounted on bracket by means of pin. Bracket is coupled with slide block rigidly secured to holder with possibility of motion. Slide block is joined with head of screw by means of rectangular axle arranged in cross groove of screw head. Tie rod for rotating casing of roller cassette relative to bracket is jointly mounted on end of casing of roller cassette. Said tie rod is coupled with tie rod jointly mounted in bracket by means of nut with left and right threads. Mechanism for adjusting motion of upper roller cassettes is arranged in parallel to vertical axis of holder. Mechanism for adjusting motion of lateral roller cassettes is arranged along radius of base of holder.

EFFECT: improved efficiency of stand, enhanced quality of welded tubes and accessibility for repair.

2 cl, 6 dwg