Servo motor for machine tool

The utility model relates to the field of motor equipment, and discloses a servo motor for a machine tool, which comprises a machine tool for factory processing, a motor casing for loading and driving, a motor shaft for rotating and a front cover for limiting shaking of the motor shaft, the side end of the machine tool is fixedly connected with the motor casing, and the front cover is arranged at the front end of the motor casing. A motor shaft is inserted into the front end of the motor shell, penetrates through the front cover and extends into the motor shell, an anti-permeation device is arranged in the front cover, the motor shaft is movably inserted into the side wall of the machine tool, water stains or oil stains are guided to a dispersion cover through a drainage plate in the front cover, and the water stains or the oil stains are dispersed in the dispersion cover through rotation of the motor shaft; when the motor rotates, the dispersing cover is rotated, and oil stains or water stains on the dispers