Penetration type ball screw stepping motor

The utility model relates to the technical field of transmission devices, and discloses a through-type ball screw stepping motor, which comprises a whole device, a ball through sleeve, a front end cover and a stator iron core, the left side of the whole device is fixedly connected with the ball through sleeve, the right side of the ball through sleeve is fixedly connected with the front end cover, and the front end cover is fixedly connected with the stator iron core. The right side of the front end cover is fixedly connected with a stator iron core, the middle of the ball penetrating sleeve is connected with a ball nut in a lap joint mode, the bottom end of the ball nut is movably connected with a special connector, the special connector can be used for connecting parts, the use condition of the device is simple and convenient, the device can operate only through electricity in use, and due to materials, the cost is low. The service life of the device can be prolonged, the reciprocating life can reach 3 mill