Profiling feeding mechanism of bent pipe processing machine

The utility model discloses a profiling feeding mechanism of a bent pipe processing machine. The profiling feeding mechanism comprises a driving device, a main shaft and a profiling main piece, the driving device comprises a machine base, a driving part, a driving wheel, a driven wheel, a tensioning part and a driving motor, the driving wheel, the driven wheel and the tensioning part are installed on the machine base, the driving motor drives the driving wheel to rotate, and the driving part is of a flexible structure and is in transmission fit with the driving wheel, the driven wheel and the tensioning part; the main shaft is used for being connected with a bent pipe machining mechanism, the main shaft is fixedly connected with the driving part, the profiling main part and the tensioning part guide the main shaft to move along a track matched with the shape of a bent pipe, and the directional guide wheel set guides the main shaft to guarantee that the main shaft is perpendicular to the plane where the bent p