Patent ID: 6708590
Filing Date: 2004-03-23
Classification: B23B,B23Q,Y10T

Abstract:
A machine for the chip cutting machining of metallic workpieces comprising:a holder; a tool body including front and rear parts, the front part carrying a cutting insert, the rear part mounted in the holder; a plurality of nozzles for emitting respective jets of cooling liquid, the nozzles spaced above and rearwardly of the insert, the nozzles aimed at different respective points along a cutting edge structure of the insert; a plurality of liquid ducts connected to respective ones of the nozzles for conducting cooling liquid thereto; a duct-closing mechanism for selectively opening the ducts independently of one another during a machining operation; and a pre-programmed controller for automatically controlling relative movement between the body and a workpiece along a predetermined path, and automatically controlling the duct-closing mechanism for independently opening different ones of the nozzles selected in correlation to a specific portion of the cutting edge structure actively engaged in cutting, to emit cooling liquid specifically toward such portion.