Direct drive rotary table of numerical control gear hobbing machine

The utility model discloses a numerical control gear hobbing machine direct drive rotary table which comprises a workbench box body, an upper bearing sleeve and a lower bearing sleeve are installed at the upper end and the lower end in the workbench box body respectively, a first tapered roller bearing is installed in the upper bearing sleeve, and a second tapered roller bearing is installed in the lower bearing sleeve. A motor assembly is axially installed between the upper bearing sleeve and the lower bearing sleeve, a rotor of the motor assembly is installed on the inner side of the stator in a matched mode, and the rotor is connected with the rotary table main shaft through a locking mechanism. A fluid circulation loop for cooling the motor is arranged in the workbench box body; the lower end of the lower bearing sleeve is provided with a bearing pressing sleeve used for adjusting the load of the bearing and the rotation precision of the main shaft, and the bearing pressing sleeve is provided with an open