Outer burr removing device for longitudinal welded pipe

The utility model relates to the technical field of welded pipe deburring, and particularly discloses a straight welded pipe outer burr removing device which comprises a gantry rack fixed on the ground, a welded pipe placing frame fixedly installed on the gantry rack and used for placing a welded pipe, and a lifting assembly arranged on the gantry rack. The deburring scraper assembly is connected with the lifting assembly and the gantry rack and used for removing burrs outside the welded pipe; the gantry rack comprises a gantry rack body, a sliding guide rail horizontally arranged on the gantry rack body and used for installing the deburring scraper assembly, and a sliding adjusting assembly arranged on the gantry rack body and connected with the deburring scraper assembly. The device is high in rigidity, the phenomena of vibration and damage do not exist in the deburring process of the longitudinal welded pipe, and it can be guaranteed that the surface of a weld joint is smooth and flat. 本实用新型涉及焊管去毛刺技术领域，具体公