Boring and rolling compound tool for conical deep hole

The invention provides a boring and rolling compound tool for a conical deep hole, and belongs to the technical field of conical hole cutting. The problem that an existing tool cannot remarkably improve the machining efficiency of taper hole parts is solved. The boring and rolling compound tool comprises a boring part and a rolling part which are distributed front and back, wherein the boring part comprises a frame rod, a core shaft inserted into the frame rod from the front end of the frame rod, an inclined plane part arranged at the front end of the core shaft and parallel to the generatrix of a conical hole, and a boring cutter arranged at the front end of the frame rod; the rolling shaft is arranged in the main body part in a penetrating mode, the tail end of the rolling shaft is used for being connected with a lathe spindle so as to fix the cutter to the lathe spindle, and the pin roller is arranged on the main body part, is parallel to a generatrix of the taper hole and can move on the main body part in