A power and signal transmission device for a spindle of a machine tool is provided. The power and signal transmission device includes a spindle fixing portion, a shaft rotating portion, a power transmission component and a signal transmission component. The spindle fixing portion is provided with a power input end, a primary side power induction coil, a secondary side signal induction coil and at least one signal output end. The shaft rotating portion is provided with a joining end surface for bonding to a holder, a secondary side power induction coil and a primary side signal induction coil, and is rotatable with respect to the spindle fixing portion. The power transmission component transmits an electrical energy from the power input end. The signal transmission component transmits a holder signal to the signal output end. Each of the power and signal transmission components includes at least one elastic pogo pin.

A power and signal transmission device for a spindle of a machine tool is provided. The power and signal transmission device includes a spindle fixing portion, a shaft rotating portion, a power transmission component and a signal transmission component. The spindle fixing portion is provided with a power input end, a primary side power induction coil, a secondary side signal induction coil and at least one signal output end. The shaft rotating portion is provided with a joining end surface for bonding to a holder, a secondary side power induction coil and a primary side signal induction coil, and is rotatable with respect to the spindle fixing portion. The power transmission component transmits an electrical energy from the power input end. The signal transmission component transmits a holder signal to the signal output end. Each of the power and signal transmission components includes at least one elastic pogo pin.

A procedure for measuring a measured variable in a process step of a manufacturing process uses a measurement chain with an evaluation unit and a plurality of measurement units having a sensor, a converter unit and a secondary antenna. The evaluation unit has a primary antenna. A measurement unit is positioned for measuring the measured variable and automatically coupled to the evaluation unit by establishing a transmission connection between the secondary antenna and the primary antenna. The sensor automatically generates measurement signals indicative of the measured variable. The converter unit automatically converts the measurement signals into measurement data, which the secondary antenna automatically transmits to the primary antenna.

A machining device is adapted to be provided on a mount provided with a toolholder. The toolholder is controllable to rotate and is adapted to be engaged with a tool. A primary coil engaged with the toolholder includes a first ferrite core and a first coil assembly detachably engaged with the first ferrite core. The first coil assembly is modular molded, and is adhered to be an annular body having a first hollow portion. A piezoelectric actuator is electrically connected to the primary coil to drive the tool to vibrate. The secondary coil includes a second ferrite core and a second coil assembly detachably engaged with the second ferrite core. The second coil assembly is modular molded to be an annular body having a second hollow portion.

A spindle device is mountable with a tool holder, and includes a rotating spindle rotatably mounted to a spindle main body and extending axially to have an axial end surface. A contactless power transmission module is disposed on a flange end surface of the spindle main body and an outer peripheral wall of the rotating spindle for supplying power. An electrically connecting module includes two conductive units each disposed in the rotating spindle and electrically connected with the power transmission module. Each conductive unit has an electrically conductive post extending axially and exposed from the axial end surface for conducting the power to the tool holder.

A universal plate system for mounting tool heads and/or components on manufacturing machines includes a fixed plate assembly on the x-carriage of the manufacturing machine. A mobile plate assembly is configured to removably attach to the fixed plate assembly, to provide mechanical support and electrical connectivity to a tool head assembly mounted to the mobile plate assembly. The mobile plate assembly can be easily detached from the fixed plate assembly and replaced with a different mobile plate assembly having a different tool head assembly mounted thereon. Mating of the mobile plate assembly to the fixed plate assembly provides the mechanical and electrical connection between the manufacturing machine and the newly mounted tool head assembly, thus permitting quick changes of the tool head assembly to be made.

A chuck for supporting rotationally symmetrical workpieces to be machined, comprising a chuck body having at least three guideways worked into its end face running in the direction of the longitudinal axis of the chuck, at least three clamping jaws inserted individually into each of the guideways in a movable arrangement, and a driving means in a driving connection with the clamping jaws directly or via intermediate elements, with each of the clamping jaws of the chuck being adjustable during machining using driving means configured as an electric motor, with each clamping jaw having an electric motor arranged inside the chuck body, and when the chuck is stationary, the electric motors are electrically connected to a power source by means of a plug-and-socket connection and electrical cables, and/or when the chuck is rotating or at a standstill each electric motor is connected to the power source via an induction device.

The application describes a machine tool adapted and arranged to carry out removal and addition of material on a work piece located in a work station, the machine having a first head arranged to remove material from the work piece and at least a second head arranged to process the work piece, each of the first and second heads being arranged to be moveable in at least two axes and preferably in 3, 4 or 5 axes and wherein the machine is arranged to control an environment of the work station. The work station is at least partially sealable. The machine has a clean side and a dirty side. Novel processing heads particularly adapted for use in the new machine tool are disclosed. These may also be retrofitted to CNC machines. The novel heads include heads adapted to carry out two processes simultaneously. Heads adapted to carry out heat and pressure treatment are also disclosed. Use of the processing heads to carry out analysis in manufacturing steps is disclosed as is the provision and use of heads that can carry out analysis as well as processing.

An arrangement for processing workpieces includes at least one processing machine, a machine magazine assigned to a respective processing machine for accommodating processing tools, and a robot arranged on a driverless base frame. Processing tools may be supplied to and/or removed again from the machine magazine using the driverless base frame. The driverless base frame is additionally provided with a temporary magazine for accommodating processing tools.

A measurement apparatus includes a measuring probe, a power supply provided to the measuring probe, a first communication circuit supplied power from the power supply and configured to perform communication of a type-1 signal via a first communication, the type-1 signal containing information regarding measurement performed in the measuring probe, and a second communication circuit supplied power from the power supply and configured to perform communication of a type-2 signal via a second communication, the type-2 signal containing information regarding power supply performed in the power supply, the second communication being more reliable than the first communication.