High-precision welding structure capable of overcoming welding deformation

The utility model discloses a high-precision welding structure capable of overcoming welding deformation, which belongs to the technical field of welding processing and is characterized by comprising a first bar and a second bar, a positioning hole is arranged on the right side of the first bar, and a positioning rod is integrally formed on the left side of the second bar. Welding faces are arranged on the opposite sides of the first bar and the second bar, the positioning hole and the positioning rod are located on the two welding faces respectively, and external threads are arranged on the outer side of the positioning rod. The welding tool is suitable for columnar parts and tubular parts with high coaxiality requirements, the threads have good coaxiality, and deformation caused by welding can be greatly reduced by fixing form and location tolerance of the to-be-welded part through thread fit, so that the accurate size of a welding part is guaranteed, the coaxiality between the welding part and the to-be-we