In general, a cutting tool for the rotary chip removing machining of a work piece, for example a work piece of titanium, steel, aluminium, castings, or of any other material, comprises a tool body provided with one or a plurality of cutting edges or cutting inserts each having at least one cutting edge. Each cutting insert is generally mounted in a seat, or a pocket, provided in the tool body. The tool body defines a center axis, or rotation axis, and is in general connectable to a holder or a rotatable spindle. When drilling, the tool body is in general rotated by rotation of the spindle or the holder, which holds the tool body, while the work piece is stationary. When milling, the tool body is in general rotated by rotation of the spindle or the holder, while the work piece is stationary or is fed in a direction of feed. When performing profile or contour milling, the tool body may, for example, be rotated in a direction of rotation about its rotation axis while the work piece is fed in relation to the tool body in a direction of feed. When turning, and also for some milling, in general, the work piece is rotated with the tool body is stationary and held by a holder. Often, a shim is provided between the cutting insert and the seat surface of the seat in order to protect the tool body if the stress on the cutting insert becomes too great. A shim is easily changed and a change of the entire tool body is thus avoided.
In prior art, different monitoring systems are suggested to monitor the rotary chip removing machining of a work piece.
U.S. Pat. No. 7,289,873 discloses a sensor system for a cutting machine tool comprising a sensor arrangement measuring a force and/or a torque and/or the body sound within the cutting machine tool, an energy supply unit, which inductively provides energy for the supply of the sensor arrangement of the cutting machine tool out of a magnetic alternating field, and a data transmitting unit, which wirelessly transmits data which relate to a value measured by the sensor arrangement.
U.S. Pat. No. 7,883,303 describes a machine tool spindle structure capable of monitoring a working state, which includes a spindle body, a rotating mandrel, a cutter base, and an internal inspecting device. The rotating mandrel has a chamber, and the internal inspecting device is disposed in the chamber. Inspecting chips in the internal inspecting device are directly disposed on the cutter base. Working parameters are transmitted to an external information device by a wireless transmission module in the internal inspecting device.
US 2008/0105094 discloses a machine tool control method employing a machine tool for carrying out a work producing process having a cutting implement for machining a work piece according to the process. A sensor device is provided on the cutting implement for sensing at least one condition of the process.
US 2009/0235763 describes a chuck-integrated force-measuring system for determining cutting forces at the cutting tool tip of a rotating tool, for example a drill or milling cutter having a sensor, as well as a measured-value processing station. The sensor is designed as a strain sensor which is placed on a tool holder of a machine tool.
WO 2009/117396 discloses a tool holder including a body, a processor disposed with the body, and a transceiver disposed with the body and in communication with the processor. The transceiver is structured to communicate with an external receiving device. A cutting assembly has a number of sensors, and the processor is structured to communicate with the sensors.
U.S. Pat. No. 7,710,287 describes a sensor system for a machine tool with a sensor with a measurement instrument, which measures a physical quantity occurring within the machine tool, with a first energy supply for supply of the measurement instrument of the sensor, wherein the first energy supply receives electric energy from a surrounding electromagnetic field in a wireless way, and with a battery for supplying the measurement instrument of the sensor.
U.S. Pat. No. 8,083,446 discloses a spindle for a machine tool for machining work pieces, wherein a data acquisition element for recording operating and/or state data of the spindle is provided, and wherein the data acquisition element is in the form of a radio chip and can be read by radio.
U.S. Pat. No. 8,080,918 describes an apparatus and a method for controlling the machining of work pieces using piezoceramic transducers.
US 2009/0175694 discloses a system including a cutting tool, which includes a tool body, and an integrated circuit chip securely mounted within the tool body and capable of being read and written upon.
U.S. Pat. No. 6,297,747 describes a tool holder having a sensor for measuring an operating parameter of the tool holder or the tool during the operation. The sensor is a surface acoustic wave sensor operating according to acoustic wave principles and its measured value signals are readable in a contactless manner by means of radio waves.
DE 10 2007 036 002 discloses a monitoring device for a processing tool, comprising an oscillation device and an oscillation detector which are connected in a sensor and form a surface wave sensor.
DE 10227677 describes a method for wireless monitoring of a machine part using a passive conducting cable structure. A passive sensor can be configured as a surface wave sensor.