Grinding tool for repairing sealing surface of aero-engine baffle valve seat

The utility model discloses a grinding tool, particularly discloses a grinding tool and a method for repairing a sealing surface of a baffle valve seat of an aero-engine, and belongs to the technical field of design and manufacturing of aero-engine sealing element repairing process equipment. According to the grinding tool and method for repairing the sealing face of the aero-engine baffle valve seat, the sealing face of the baffle valve seat can be effectively repaired, and the repairing effect is guaranteed. The grinding tool comprises a grinding base, a supporting and connecting assembly and a pre-pressing assembly, and the supporting and connecting assembly and the pre-pressing assembly are arranged on the grinding base in the mode that the position of the supporting and connecting assembly corresponds to the position of the pre-pressing assembly. And the baffle valve seat which is detachably arranged on the grinding base through the supporting and connecting assembly applies grinding pre-pressing force u