METHOD OF GRINDING BAR-SHAPED WORKPIECES, GRINDING MACHINE FOR CARRYING OUT THE METHOD, AND GRINDING CELL IN TWIN ARRANGEMENT

摘要

To grind bar-shaped workpieces which have a non-circular cross section and flat end faces running parallel to one another, two partial operations are carried out one after the other. First of all the bar-shaped workpiece is rough-and finish-ground at the end faces by double face grinding. To this end, the bar-shaped workpiece is clamped in its first clamping position at the longitudinal sides. In this clamping position, the bar-shaped workpiece is transported between two clamping jaws which clamp the workpiece in its second clamping position at its end faces. The first clamping position is then neutralized, and the bar-shaped workpiece is set in rotation by the clamping jaws. CNC circumferential grinding is then carried out according to the principle of C-X interpolation; as a result, the longitudinal sides of the bar-shaped workpiece are rough-and finish-ground. The transport from the first into the second clamping position is effected by a clamping station which at the same time forms the retaining means for the face grinding. The method described permits flow line machining and complete machining in a single grinding machine. ® KIPO & WIPO 2009