SELF-CENTERING MECHANIZED LATHE CHUCK Russian patent published in 2018 - IPC B23B31/16 B23B31/28 

FIELD: technological processes.

SUBSTANCE: chuck is intended for the cylindrical workpieces fixing during machining on lathes and contains clamping jaws, spiral disk, intended for rigid attachment to the machine spindle, body intended for mounting on the spindle with possibility of relative rotation, connecting element mounted in the guides with possibility of longitudinal movements and having contact surfaces, interacting with located in the chuck mating contact surfaces, connecting element movement drive and the body braking device. Connecting element guides are made on the body inner surface, mating contact surfaces are located on the spiral disk. At that, the connecting element moving drive is made in the form of permanent power drive for the contact surfaces connection and automatically controlled power drive for the contact surfaces disconnection. Connecting element and the spiral disc contact surfaces can be made conical.

EFFECT: enabling increase in the workpiece fastening reliability.

4 cl, 1 dwg