Positioning assembly of glass size detection device

The utility model relates to the technical field of glass detection, in particular to a positioning assembly of a glass size detection device, which comprises a transverse movement control table, a vertical movement control table movably sleeved on the top of the transverse movement control table, a glass carrying table movably sleeved on the top of the vertical movement control table, and first grooves arranged on the top of the glass carrying table close to two sides. Reciprocating lead screws are movably connected into the first grooves in a sleeved mode and penetrate through the back of the glass carrying table, mover assemblies are fixedly connected to the side walls of the two reciprocating lead screws in a sleeved mode, motors are fixedly connected to the positions, close to the two sides, of the back of the glass carrying table, and the motors provide power to drive the reciprocating lead screws to rotate. Through rotation of the reciprocating lead screw, the mover assembly performs linear displacemen