1results about How to "Small shape error" patented technology

The utility model relates to the field of longitudinal welded pipe welding, and discloses a self-adaptive compression anti-deformation device for longitudinal welded pipe welding, which comprises a workbench, the top of the workbench is fixedly connected with a limiting cylinder, the left end of the limiting cylinder is fixedly connected with a motor I, the output end of the motor I is fixedly connected with a cross rotating rod, and the cross rotating rod is fixedly connected with a rotating shaft. A sleeve is slidably connected to the outer wall of the cross rotating rod, a circular block is fixedly connected to the right end of the sleeve, a limiting cylinder is rotatably connected to the outer wall of the right end of the sleeve, a limiting groove is formed in the inner wall of the limiting cylinder, a sliding block is slidably connected to the outer wall of the limiting groove, and a supporting plate is fixedly connected to the top of the sliding block. According to the utility model, the self-adaptive support of the support plate on the welded pipes with different inner diameters can be realized, the welding seam deviation caused by stress deformation or position deviation of the welded pipes in the welding process is avoided, the positioning accuracy before welding is improved, meanwhile, support parts with different specifications do not need to be replaced, and the universality of the equipment on the welded pipes with various pipe diameters is enhanced.