Patent ID: 6602031
Filing Date: 2003-08-05
Classification: B23Q,F16N,Y02P,Y10T

Abstract:
A method for machining a workpiece, comprising the steps of:separately supplying compressed air and a liquid into a through-hole longitudinally extending through a drawbar within a spindle of a machine tool; allowing the compressed air and the liquid to separately flow through the trough-hole; mixing the liquid with the compressed air in a distal end portion of the through-hole so as to make the liquid into a mist form; ejecting the resulting mist from a distal open end of the through-hole to deliver the mist to a distal end of a tool by a part of the mist flowing along an outer periphery of the tool and the rest of the mist flowing through the inside of the tool; and machining the workpiece while ejecting the mist to the distal end of the tool to supply the mist to a machining part.