Positioning jig of fan

The utility model relates to the technical field of workpiece positioning, and discloses a fan positioning jig which comprises two transverse plates, four bolts are in threaded connection with the separated sides of the interiors of the two transverse plates, positioning blocks are fixedly connected to the four corners of the sides, close to each other, of the two transverse plates, supporting columns are arranged at the four corners of the sides, close to each other, of the two transverse plates, and the supporting columns are fixedly connected to the two transverse plates. A threaded groove is formed in the middle of the top end of the supporting column, and a positioning groove is formed in the eccentric side of the supporting column. According to the fan fixing device, the positioning blocks, the positioning grooves and other structures are used in cooperation, bolts cannot be disengaged, then workers cannot be hurt, the installation efficiency is improved, the springs, the pull rods and other structures