Combined grinding machine device and method for high-pressure turbine outer ring block and grinding machine equipment

The invention relates to the technical field of high-pressure turbine assembly machining and manufacturing, in particular to a high-pressure turbine outer ring block combined grinding machine device and method and grinding machine equipment. Two datum points are arranged on a base, one datum point serves as the center of a datum circle, and the other datum point serves as the center of an eccentric circle; through two times of alignment, namely, the upper semicircle is ground by aligning the reference circle center firstly, and then the lower semicircle is ground by aligning the eccentric circle reference, so that the sizes of long and short shafts, the sizes of the upper semicircle and the lower semicircle and a run-out value are ensured, the numerical control vertical mill performs grinding work on two non-concentric references of the outer ring block, and the requirements of related sizes are ensured. The positioning hole, the anti-misoperation hole and the pressing assembly are arranged on the base, so th