Rolling and stretching forming device for mechanical part

The utility model discloses a rolling and stretching forming device of a mechanical part, which comprises an upper die and a lower die, the upper die and the lower die are respectively and correspondingly sleeved on a rotating shaft, the rolling and stretching forming device further comprises a clamping assembly, the clamping assembly comprises a clamping cylinder and a manipulator, the manipulator is used for clamping a workpiece between the upper die and the lower die, and the clamping cylinder is used for clamping the workpiece between the upper die and the lower die. The upper die and the lower die rotate in the same direction through a rotating shaft to roll and lengthen a workpiece on the mechanical arm to form a model, the feeding assembly comprises a feeding groove, and one end of the feeding groove is provided with a pushing air cylinder used for pushing the workpiece to the mechanical arm to be clamped. The upper die and the lower die rotate on the rotating shaft in the same direction to roll a work