SPINDLE GRINDING HEAD Russian patent published in 1998 - IPC

FIELD: machine tool manufacture, possibly grinding and finishing spherical surfaces. SUBSTANCE: spindle grinding head includes grinding wheel mounted in holder and having rotation axis normal relative to central axis of holder in the form of spindle whose rotation axis coincides with its central axis. Grinding wheel is mounted on axle and inclined by angle α relative to its rotation plane. Inclination angle of grinding wheel depends upon radius R of ground spherical surface, height B and outer diameter D of grinding wheel and it is determined according to relation: α ≥ arctg[(2R + B)/D]. Holder and grinding wheel are kinematically connected one with another for rotating with the same revolution number. EFFECT: enlarged manufacturing possibilities, burning-free grinding of spherical surfaces at increased accuracy. 2 dwg