Grinding machine with protective hood for the grinding wheel

Abstract

A surface grinding machine wherein the grinding wheel is partially surrounded by a hood which can be turned about the axis of the grinding wheel in dependency on the shape and level of that part of a workpiece which is then treated by the grinding wheel. The hood carries coolant discharging nozzles which are continuously directed toward the location of contact between the grinding wheel and the workpiece. For this purpose, the nozzles are adjustable relative to the hood by discrete motors so as to compensate for wear upon and the resulting reduction of the diameter of the grinding wheel, or the hood is movable with the nozzles radially of the grinding wheel. The angular movements of the hood are shared by a dressing apparatus which is movable radially of the grinding wheel so that the dressing tool can treat the grinding wheel while the machine is in actual use.

Dependencies are inferred from the claim text.