LATHE SELF-CENTERING CHUCK Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: chuck has body 1 in which cams 2 and spiral disk 3 with the spiral-mode mechanism of the cam displacement are located. The disk drive includes input shaft 4, planetary reduction gear comprising pole 9, satellites 17, 18, central wheel 20 of inner engagement and friction clutch 6. There is additional friction clutch 21, movable disk 22, control clutches with cams 8 and 13 of the triangular profile. The quick displacement of the cams takes place at the expense of the momentum transfer from shaft 4 to shaft 10, through clutch 6 to disk 3. At the cam retardation during the interaction with the article, shafts 4 and 10 become detached from each other by cams 13, and pole 9 and clutch member 7 - by cams 8. Clutch 6 is switched off, clutch 21 is switched on, wheel 20 is slowed down. The cam clamp takes place at a low speed by a great moment. EFFECT: facilitated manufacture. 1 dwg