Patent ID: 7641537

Claim:
A machine tool comprising: a rotating cutting tool ( 2 , 14 , 16 ) for machining a workpiece held on the machine tool, wherein the cutting tool ( 2 , 14 , 16 ) is a tool for producing gears. an electronic data carrier ( 7 ) connected to the cutting tool ( 2 , 14 , 16 ) for storing data relevant to the use of the cutting tool, and means ( 10 ) for performing the non-contact roll-in and/or roll-out of data of the electronic data carrier ( 7 ) provided on the machine tool, said means permitting a transmission of data from the electronic data carrier ( 7 ) to the machine tool and receipt of data by the electronic data carrier ( 7 ) from the machine tool during the machining process when the cutting tool ( 2 , 14 , 16 ) is rotating, the electronic data carrier ( 7 ) and the means ( 10 ) being arranged concentrically to the rotation axis ( 6 ) of the cutting tool ( 2 , 14 , 16 ), and wherein the data transmitted between the electronic data carrier ( 7 ) and the means ( 10 ) for the roll-in and roll-out of data of the electronic data carrier ( 7 ) comprise at least one of the following tool-specific items of information: tool-geometry data, tool-coating characteristic data, tool-life data, tool-use technological data, and technological data of previous uses of the tool.