Assembly type pipeline aligning device

The utility model discloses an assembly type pipeline opening aligning device which comprises a mounting frame, a transverse rod is arranged on the rear side of the mounting frame, and fixing plates are fixed to the front side of the mounting frame in an up-down symmetrical mode. A bearing is connected into the transverse rod, a limiting block is further fixed to the bidirectional threaded rod, the limiting block is arranged in the transverse rod, and the upper end of the bidirectional threaded rod penetrates through the upper end face of the transverse rod and is fixedly provided with a hand wheel. The clamping plates are symmetrically arranged on the front side of the cross rod up and down, and top plates are symmetrically arranged between the clamping plates front and back. According to the assembly type pipeline opening aligning device, the linkage adjustable clamping and limiting mechanism is adopted, so that the assembly type pipeline opening aligning device can adapt to pipelines of different sizes for