Part machining numerical control programming method and device of non-orthogonal five-axis numerical control machining center

The invention relates to the technical field of aero-engine component machining, and discloses a part machining numerical control programming method and device of a non-orthogonal five-axis numerical control machining center. According to the real-time value of the included angle between a cutter shaft and a Z axis during machining, the main shaft rotation angle of a main shaft relative to the main shaft initial position and the cutter shaft rotation angle are obtained; secondly, according to the obtained real-time main shaft rotation angle, the obtained real-time cutter shaft rotation angle and the obtained space position of a cutter head of a cutter in a coordinate system of the non-orthogonal five-axis numerical control machining center, programming software of the non-orthogonal five-axis numerical control machining center is adopted to program a machining program of the to-be-machined area; particularly, machining numerical control programs for machining the outer shape and the inner shape of the casing