Circle shear cutting edge is leading to epaxial locking fixed device

The utility model provides a circle shear cutting edge is leading to epaxial locking fixed device, including fixing sleeve, movable sleeve and hydraulic pressure lock nut live, the fixing sleeve and the movable sleeve that lives are the cylinder structure, fixing sleeve's front end is equipped with preceding centre gripping bulge loop along circumference, movable sleeve's alive tail end is equipped with back centre gripping bulge loop along circumference, fixing sleeve's hole is the cylinder hole, the front portion of outer peripheral face is the circular conical surface, the rear portion is the periphery, be equipped with the connection external screw thread on the outer peripheral face of rear portion, the movable sleeve hole of living is the conical bore, the outer peripheral face is the periphery, movable sleeve's alive conical bore disposes the block with fixing sleeve's circular conical surface mutually, hydraulic pressure lock nut with be connected external screw thread configuration spiro union, its p