Pipe stamping variable die guide structure for hardware machining

The invention provides a pipe fitting stamping variable die guide structure for hardware machining, and relates to the technical field of stamping machining, the pipe fitting stamping variable die guide structure comprises a guide adjusting transmission mechanism, the guide adjusting transmission mechanism is arranged in a stamping upper die, and a guide adjusting operation piece drives a guide block connecting rod to swing at the same time through the guide adjusting transmission mechanism; the stamping die core is connected to the interior of the stamping lower die in a fastening manner; the material returning barrel is connected to the inner side of the lower portion of the lower stamping die in a sliding mode, the outer side of the stamping die core is sleeved with the material returning barrel, and the material returning barrel is elastically connected with the lower stamping die through a spring; and the linkage material returning assembly is arranged in the lower stamping die, and when the upper stampi