Patent ID: 6264590
Filing Date: 2001-07-24
Classification: B23Q,Y10T

Abstract:
A tool holder unit for chuck mounting heads used in machining where chips are removed from the worked part and waste material consequently produced, said tool holder unit comprising: a tool holder spindle having a first end which connects with the chuck mounting head and a second end on which a tool is mounted; and an extraction device associated to the tool holder spindle and comprising at least one first pipe having at least one first end located in an area close to the tool and a second end equipped with first connection means designed to connect the first pipe to corresponding second connection means associated to the chuck mounting head and connected to means for producing a flow of fluid at a defined pressure along the first pipe so as to remove the waste material produced by machining from the area close to the tool, said extraction device comprising a first casing having a first inclined surface designed to be quickly attached to a second matching inclined surface made at the second connection means associated to the chuck mounting head; said first and second inclined surfaces forming the first and second connection means which form a detachable coupling designed to rapidly connect the extraction device to the means for producing a flow of fluid.