Axial buffer structure of numerical control machine tool

The utility model discloses an axial buffer structure of a numerical control machine tool, which comprises a motor shell, a rotor shaft and a protective shell, the rotor shaft is arranged in the motorshell, the outer side wall of the motor shell is fixedly connected with a circular ring, the rotor shaft penetrates through the circular ring, and the protective shell is connected with the circularring through a buckle device. The tail end of the rotor shaft is fixedly connected with a rubber pad, and a buffer mechanism in contact with the rubber pad is arranged in the protective shell. Under the action of the buffer mechanism, the rotor shaft moving in the axial direction is damped through the second spring, the deviated rotor shaft is damped and reset through the first springs, friction between the rotor shaft and the disc is increased through the rubber pad at the tail end of the rotor shaft, axial movement of the rotor shaft is relieved through the device, the rotor shaft is protected in the operation proces