Gear hobbing machine cutter frame rotating plate damping mechanism

The invention discloses a gear hobbing machine cutter frame rotating plate damping mechanism. A cutter frame rotating plate is supported on a slide plate in a rotating manner by virtue of a rotating shaft; a servo motor drives a deceleration shaft to rotate by virtue of a division worm gear pair, a small division gear on the deceleration shaft is constantly engaged with a large division gear fixed on the cutter frame rotating plate, and a positioning disc and an annular pressure plate are arranged between the cutter frame rotating plate and the slide plate; one end of the positioning disc is large, one end of the positioning disc is small, and a large-diameter section of the positioning disc is arranged between the large division gear and the annular pressure plate; a group of piston holes is circumferentially formed in one side, adjacent to the large-diameter section of the positioning disc, of the annular pressure plate, each piston hole is internally matched with a piston in a sliding manner, the bottom of each piston hole is communicated with a corresponding oil hole on the annular pressure plate, and the oil hole is communicated with an axial oil inlet hole on the slide plate by virtue of an axial oil through hole on the positioning disc. The division of the cutter frame rotating plate is mainly realized by virtue of the division worm gear pair and a division gear pair, the locking of the cutter frame rotating plate is realized by virtue of the movement of the piston, and the angular precision of the cutter frame rotating plate can be improved.