VARIABLE VOLUME COOLANT SYSTEM

摘要

A variable volume coolant system (42) for delivering liquid coolant. A first conduit path (46) is defined between a source of liquid coolant and a nozzle (40) for delivering coolant to the gap defined between the machine tool (34) and the workpiece (22); a second conduit path (48) is also defined between the source of liquid coolant and the nozzle (40). A first valve (52) controls the flow of liquid coolant through the first conduit path (46), while a second valve (54) performs the same function for the second conduit path (48). The first conduit path (46) possess a greater volume than the second conduit path (48). By selectively adjusting the first (52) and second valves (54), a high volume flow of liquid coolant is maintained over most of the machining operation.