Cutter for machining gear ring

The invention discloses a cutter for machining a gear ring. The cutter comprises a cutting part which is of a cylindrical structure, the upper end of the cutting part is provided with a chuck which is larger than the diameter of the cutting part, the lower end of the cutting part is provided with a bayonet which is smaller than the diameter of the cutting part, the top end of the cutting part is provided with a front handle, the front handle is provided with a front positioning clamping slot, the top of the front handle is provided with a clamping slot, the bottom of the cutting part is provided with a rear handle, and the rear handle is provided with a rear positioning clamping slot. The cutter for machining the gear ring has the advantages of being simple in structure, low in cost, high in safety, high in precision, convenient to operate and the like; adopted cutter teeth are of a helical structure, so that the cutter teeth are provided with oblique angles, thin cutting is achieved, machining surfaces are n