Anti-deformation tool for welding 45-degree inclined tee joint

The utility model discloses a 45-degree inclined tee welding anti-deformation tool, which comprises a frame main body and a plurality of tool main bodies, the frame main body is formed by fixing a plurality of angle steels together, the tool main bodies are fixedly arranged on the frame main body, and a welding space is formed between the frame main body and the tool main bodies. The tool body is composed of I-shaped steel, a first round sleeve, a semicircular sleeve, a second round sleeve and an inclined sleeve, the first round sleeve, the semicircular sleeve and the second round sleeve are all fixedly arranged below the I-shaped steel, and the inclined sleeve is fixedly arranged below the I-shaped steel in an inclined mode. The 45-degree inclined tee joint welding anti-deformation tool is arranged, the pre-assembled inclined tee joint main pipe and the pre-assembled inclined tee joint branch pipe are installed on the anti-deformation tool together to be welded, the manufacturing quality of the 45-degree inc