Steel pipe bending and bulging integrated device

The utility model belongs to the technical field of steel pipe machining. The steel pipe bending and bulging integrated device comprises a mounting base, a clamping base is fixedly arranged at the top of the mounting base, a bulging machine is fixedly arranged at the top of the mounting base, a hydraulic cylinder is fixedly arranged at the top of the mounting base, a clamping base is fixedly arranged at the output end of the hydraulic cylinder, and a rotating shaft is rotationally connected to the top of the mounting base; a pipe bending disc is fixedly arranged on the circumferential outer wall of the rotating shaft, and a bending groove is formed in the circumferential outer wall of the pipe bending disc. A straight pipe penetrates through an annular groove and a bending groove to extend into a clamping base, the straight pipe in the clamping base is fixed through a clamping base, a pipe bending disc is driven by a first motor to rotate, a pipe bending component is driven to rotate when the pipe bending dis