ELONGATED ARTICLE CYLINDRICAL GRINDING METHOD AND REST Russian patent published in 2006 - IPC B24B5/02 B23Q1/76 

FIELD: machine tool manufacture, possibly cylindrical grinding of elongated and thin articles such as rolls.

SUBSTANCE: method comprises steps of mounting article in center; basing it on main bearing units of rest; at starting each technological pass, placing table with article in limit position; driving article to rotation; crosswise feeding tool and forming on worked surface collar with depth 5 - 50 micrometers; basing article by means of collar on bearing units of rest and working surface at guaranteed pressing of article to main bearing units; selecting pressure effort value depending upon rigidity of article at deformation preventing condition. Rest is mounted in housing and it includes except main bearing units (one main bearing unit is horizontal) floating bearing unit for providing guaranteed pressing of article to main bearing units. Floating bearing unit includes holder and tightening mechanism joined with holder. The last is mounted with possibility of radial motion relative to rotation axis of article and it is arranged in body of rest at side opposite to main bearing units. Horizontal bearing unit includes self-aligning member whose step number and angle parameters are selected according to condition minimizing influence of out-off-roundness upon positional stability of article rotation axis.

EFFECT: improved roundness degree of elongated articles such as rolls at cylindrical grinding in centers, enhanced efficiency of grinding.

2 cl, 3 dwg