Movable jaw shaft hole sodium silicate-bonded sand integral sand core combined mold

The utility model discloses a movable jaw shaft hole sodium silicate-bonded sand integral sand core combined die which comprises a fixed core box and a split core box, one side face of the fixed core box and one side face of the split core box are oppositely combined faces, the oppositely combined faces are provided with cavity grooves, the fixed core box and the split core box are oppositely combined to form a die with a cavity, and the cavity grooves are formed in the fixed core box and the split core box. Two involution surfaces of the fixed core box and the split core box are respectively provided with a positioning pin and a positioning hole, the positioning pin corresponds to the positioning hole in position, the split core box is divided into a plurality of sections, the split core box comprises a split core box I and a split core box II, the fixed core box and the split core box are connected through a fastening device after being involution, and the fixed core box is connected with the split core box