Clamping mechanism based on pipe bending machine for bulb pull rod production

The utility model discloses a clamping mechanism based on a pipe bender for ball head tie rod production, which comprises a base, a clamping main body and a displacement ring, the clamping main body comprises a fixed ring and a plurality of groups of locking blocks, the fixed ring is composed of two groups of semi-ring strips, one ends of the two groups of semi-ring strips are hinged through a hinge shaft, the other ends of the two groups of semi-ring strips are fixedly connected through a screw I, and the displacement ring is fixed on the base. A centrifugal hole is formed in the middle of the locking block. According to the clamping mechanism based on the pipe bending machine for bulb pull rod production, a displacement ring is pulled through an electric push rod, then the displacement ring moves rightwards, a supporting rod abuts against a locking block, then the locking block rotates, a pipe rod is clamped, clamping is firm, by arranging a rubber sleeve, the clamping stability is improved, clamping fallin