| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for cooling a lathe-machining tool in an NC lathe which attains cooling action equal to that of wet machining by means of the vaporization heat cooling of water, and is excellent that efficient cooling is performed while suppressing an increase in costs and a rust or corrosion problem does not occur.SOLUTION: A method for cooling a lathe-machining tool in a NC lathe is provided in which alkaline ionized water is injected toward a cutting edge 2 of the lathe-machining tool 1 from a nozzle 3 and the injected water is evaporated by heat to be generated in lathe machining to cool the cutting edge 2 by means of the heat of the evaporation. The proper amount of the water to be injected is preset according to a lath machining condition or controlled automatically in machining. The on/off-control of water injection is conducted on the basis of the NC information of an NC control part 5, or the detection of a water injection on/off-detection part for detecting a lathe machining start time when the lathe-machining tool 1 is contacted with a workpiece 6 and the lathe machining stop time when the lathe-machining tool is parted from the workpiece. The proper (small) amount of the alkaline ionized water 4 is injected spottedly toward the cutting edge 2 in lathe machining. |
