Auxiliary tool for pipeline bevel

The utility model discloses an auxiliary tool for a pipeline bevel, comprising an inner ring (1), three jack screws (2), an outer ring (3), a screwed plug (4), a ball (5) and a cutting gun support (6). The auxiliary tool for the pipeline bevel is characterized by being of a dual circular ring structure, wherein the inner ring (1) is longer than the outer ring (3); the outer ring (3) is sleeved outside the inner ring (1); the front ends of the inner ring (1) and the outer ring (3) are flush, and a slideway (A) is arranged between the contact surfaces of the inner ring (1) and the outer ring (3); the outer ring (3) is provided with a through hole corresponding to the slideway (A); the ball (5) is placed in the through hole plugged by the screwed plug (4); the circumference of the rear end of the inner ring (1) is provided with the three jack screws (2); and the cutting gun support (6) is fixed on the circumference of the outer ring (3) parallel to an axis. The auxiliary tool has the beneficial effects of novel