Coolant supply method and a coolant supply device for a machine tool

摘要

PROBLEM TO BE SOLVED: To prevent to limit the freedom of nozzle arrangement, and cool the heating positions of a tool and a tool holder sufficiently, after the processing operation is finished. ;SOLUTION: A high pressure nozzle 11 provided to the processing position P of a gear cutting machine 1; a high pressure coolant feeding source 12 to be operated during the processing operation of the gear cutting machine 1, and to feed a high pressure coolant to the processing position P through the high pressure nozzle 11; a low pressure nozzle 13 provided to the cutter 5 of the gear cutting machine 1; and a low pressure coolant feeding source 14 to feed a low pressure coolant to the cutter 5 through the low pressure nozzle 13; are provided, and a change-over mechanism 20 to cut and release a flow passage between the low pressure nozzle 13 and the low pressure coolant feeding source 14, synchronously with the operation and the stopping of the high pressure feeding source 12, is also provided.;COPYRIGHT: (C)1998,JPO