Nut transfer structure

The utility model discloses a nut transfer structure, which belongs to the field of nut transfer and comprises a track and an industrial robot mounted on the track, a hollow working box is mounted on the industrial robot, cleaning ports are arranged on two sides of the working box, a nut transfer mechanism is arranged in the working box, and the cleaning ports are communicated with the nut transfer mechanism. The nut transferring mechanism comprises an expansion assembly used for fixing the rectangular groove and a blocking assembly used for blocking prevention of the cleaning opening, a control host is arranged on the working box, and the industrial robot and the nut transferring mechanism are both electrically connected with the control host. According to the nut fixing device, the nuts can be fixed in batches only through one driving motor, the nut fixing device can adapt to most of nuts of different sizes, the applicability of the device is improved while the cost of the device is reduced, and the nut fix