TAIL STOCK Russian patent published in 1997 - IPC

FIELD: machine tool manufacture, namely designs of lathes. SUBSTANCE: tail spindle 6 with screw mechanism for axially moving it is arranged in casing 1 mounted with possibility of radial motion relative to machine tool axis. Tool cone of said tail spindle has predetermined eccentricity value relative to axis of its outer cylinder. Tail spindle 6 may be rotated around axis of said cylinder for adjusting it. Mechanism for angular fixation of tail spindle 6 is in the form of flat washer 12 with radial dent 11. Washer 12 may be monolithic with nut 8 of screw 7 of said screw mechanism for axially moving tail spindle. Outer diameter of screw 7 is more than width of through groove of tail spindle 6. Eccentricity value of tool cone of tail spindle 6 is equal approximately to total linear wear of guides and main plate 2 during operating life of machine tool. EFFECT: improved design. 4 cl, 4 dwg