Gear machining and grinding mechanism

The utility model discloses a gear machining polishing mechanism which comprises a main body and a lifting mechanism, a motor is fixedly connected to the upper end of the main body, the lifting mechanism is arranged on the motor, a lifting mechanism shell is fixedly connected to the upper end of the main body, and the lifting mechanism comprises the lifting mechanism shell fixedly connected with the upper end of the main body. One end of the lifting mechanism shell is slidably connected with a rack, and the rack is fixedly connected with a connecting plate. The lifting mechanism is arranged on the main body so as to drive the grinding wheel to lift, and the gear for controlling the lifting mechanism and the ground gear are rotated by the same motor, so that the rotating speeds are the same, and the lifting speed of the grinding wheel is the same as the rotating speed of the ground gear; and each grinding wheel just corresponds to the space between the teeth needing to be ground, grinding is achieved, the grin