Shaping and welding integrated machining equipment for automobile collecting pipe

The invention relates to the technical field of collecting pipe machining, in particular to automobile collecting pipe shaping and welding integrated machining equipment which comprises a bottom plate, a main pipe clamping assembly and branch pipe clamping assemblies. The device further comprises a tapper clamping assembly, a welding assembly, a tapper, a tapping knife, a supporting block and a flexible shaft, the tapper clamping assembly is installed on the bottom plate, the welding assembly is installed on the branch pipe clamping assembly, the tapper is clamped on the tapper clamping assembly in a sliding and rotating mode, and the tapping knife is installed on the supporting block. The multiple tapping cutters are evenly and telescopically installed on the end face, facing the main collecting pipe, of the tapper, tapping teeth are arranged on the sides, facing the main collecting pipe, of the outer ends of the multiple tapping cutters, the multiple supporting blocks are evenly and telescopically installed