Gear machining clamping tool

The utility model belongs to the technical field of gears, and provides a gear machining clamping tool which comprises a supporting seat and a gear body, a limiting component and a clamping body are arranged on the outer side of the supporting seat, the limiting component comprises a deflection assembly, the deflection assembly comprises a molding shaft, the molding shaft is arranged on the inner side of the gear body, and the clamping body is arranged on the supporting seat. A positioning ring is fixedly installed at one end of the molding shaft, and limiting sliding rails are movably arranged on the outer side of the positioning ring in an arrayed mode. When the limiting strip on the outer side of the inclined sliding groove protrudes out of the molding shaft and makes contact with the inner side of the gear body, deformation occurs, the gear body is limited to the outer side of the molding shaft, when the angle needs to be adjusted, only the limiting screw needs to be rotated reversely, after the protrudin