Direct-drive gear hobbing machine spindle structure

The invention discloses a direct-drive gear hobbing machine spindle structure. The direct-drive gear hobbing machine spindle structure comprises a hobbing cutter rest plate arranged on a spindle base,a pull rod mechanism and a tailstock mechanism, wherein a spindle stator is arranged in an inner cavity of the hobbing cutter rest plate, a direct-drive spindle with magnetic steel attached to the outer part is arranged in the spindle stator, the front end of the pull rod mechanism penetrates through the hollow direct-drive spindle and then is connected with a cutter bar, the tail end is connected with a piston mechanism, a hobbing cutter is installed on a cutter bar, the tailstock mechanism can move back and forth on the spindle base relative to the hobbing cutter rest plate, and a tailstockspindle in the tailstock mechanism is used for ejecting or loosening the other end of the cutter bar. The direct-drive gear hobbing machine spindle structure is applied to a numerical control gear hobbing machine, a tradition