Cycloidal gear grinding tool

The utility model discloses a cycloidal gear grinding tool which comprises a rising core shaft, a first clamp board, a second clamp board, a first locating pin, a second locating pin, a first nut and a second nut, wherein the first clamp board and the second clamp board are all sleeved on the rising core shaft in a loosely matched mode, one end of the first locating pin and one end of the locating pin are all provided with clamp board connection parts, the other end of the first locating pin and the other end of the locating pin are all provided with external thread parts, and the milddle of the first locating pin and the middle of the locating pin are all provided with cycloidal gear connection parts. The clamp board of the first locating pin is fixedly connected with the first clamp board, the external thread part of the first locating pin is in detachable connection with the second clamp board through the first nut, the clamp board connection part of the second locating pin is fixedly connected with the second clamp board, and the external thread part of the second locating pin is in detachable connection with the first clamp board through the second nut. The cycloidal gear grinding tool is simple in structure, can improve processing accuracy and work efficiency, and is convenient to operate.