Elastic gear hobbing clamp
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The utility model relates to an elastic gear hobbing clamp comprising a positioning mandrel, wherein, an upper pad and a lower pad which are in sleeved fit with the mandrel are arranged respectively at the upper and the lower ends of a gear installation position, the upper pad is provided with an end cover and an inwardly concave cavity, a clamping nut is arranged at the upper end of the end cover, an elastic sleeve sleeved on the positioning mandrel is arranged in the gear installation position, one end of the elastic sleeve is in wringing fit with the lower pad, a positioning nut is arranged on the end side of the other end of the elastic sleeve, the position where the elastic sleeve and the positioning nut are fixedly connected is positioned inside the cavity of the upper pad, and the elastic sleeve can generate elastic deformation when being compressed axially. By adopting the elastic sleeve paired with the clamping nut and the positioning nut which can realize clamping and positioning respectively, the elastic hobbing clamp can enable clearance-free positioning of the positioning mandrel and a component inner hole, thereby improving the precision of the positioning of the mandrel and the component inner hole, and reducing the occurrence of geometrical decentration during gear hobbing.