Sauer Gmbh

Dmg Mori Ultrasonic Lasertec Gmbh

Sauer Gmph

Jens Ketelaer

Gaston Schwenk

Manuel Praetorius

Florian Feucht

Fabian Franzmann

The present invention relates to an anterior spindle device for use on a machine tool, comprising a clamping interfacefor clamping the anterior spindle device on a work spindle of the machine tool, an anterior spindle unitwith a spindlefor driving a drilling tool clamped on the spindle, a drivefor exerting a force on the anterior spindle unit, and an electromagnetic actuatorfor exerting a counterbalancing force opposite to the force of the driveon the anterior spindle unit

Anterior spindle device for use on a machine tool

The invention relates to a spindle device (), comprising: a tool holder () for holding a tool or a tool interface; a spindle drive comprising a spindle rotor () for rotationally driving the tool holder (); an electrical load (), which is arranged on the side of the spindle rotor () facing the tool holder (); and a coil unit () for supplying electrical energy to the electrical load (); wherein the coil unit () is arranged on the side of the spindle rotor () facing away from the tool holder ().

Spindle device and machine tool having a spindle device

A method for determining a vibration amplitude of a tool, includes the steps of: generating a light beam of a light barrier with a transmitter for generating the light beam and a receiver for detecting a light intensity of the light beam; generating a receiver signal on the basis of a light intensity of the light beam that is detected by the receiver of the light barrier; positioning a tool tip of the tool in the light beam; causing the tool to vibrate; determining the vibration amplitude of the tool from a modulation of the receiver signal brought about by the vibration of the tool.

Method and device for determining a vibration amplitude of a tool

The present invention relates to a device for generating an ultrasonic vibration of a tool used for the ultrasonic machining of a workpiece and for measuring ultrasonic vibration parameters of the ultrasonic vibration of the tool having a tool holder for receiving the tool, an ultrasonic transducer in the tool holder for generating the ultrasonic vibration of the tool, a sensor mechanism in the tool holder for producing a sensor signal on the basis of the ultrasonic vibration of the tool, and a sensor signal evaluation device for evaluating the sensor signal.

Device for generating an ultrasonic vibration of a tool and for measuring vibration parameters

Methods for measuring a resonance frequency of a tool set in ultrasonic vibration during the machining of a workpiece, involving radiating a working signal with a working frequency into a tool holder comprising a tool by a generator to produce the ultrasonic vibration of the tool; after the start of the machining of the workpiece, radiating a test signal with a test frequency varying by the working frequency and a lower power than the working signal power into the tool holder by the generator; generating a sensor signal from the ultrasonic vibration of the tool by a sensor apparatus arranged in the tool holder; reading out the sensor signal by a read-out apparatus; splitting the sensor signal into a frequency spectrum involving a main frequency and an auxiliary frequency by an analytical apparatus; determining the main frequency from the working frequency and the auxiliary frequency from the resonance frequency.

Method and device for measuring a resonance frequency of a tool set in ultrasonic vibration for machining

A method for processing a workpiece on a numerically controlled machine tool by a tool includes the steps of: controlling a relative movement of the tool relative to the workpiece for processing the workpiece, producing an ultrasonic vibration of the tool by an ultrasonic generator, detecting at least one sensor signal outputted from the ultrasonic generator and identifying a change in the material at the workpiece while controlling the relative movement of the tool relative to the workpiece on the basis of the at least one sensor signal outputted from the ultrasonic generator.

Method and device for processing a workpiece on a numerically controlled machine tool

The present invention relates to a coupling system for use at a spindle apparatus of a machine tool, comprising an energy transmission unit with a transmitter coil unit for the contact-free transmission of electrical energy to a receiver coil unit of a tool interface unit with an electrical load and a tool interface portion for accommodation in a tool support of a work spindle of the spindle apparatus, and a coupling interface unit having an interface body element attachable to the spindle apparatus and a second coupling element which is configured to be coupled to a first coupling element of the energy transmission unit by means of a releasable connection.

Coupling system for use with a spindle apparatus of a machine tool

A method and a device applying surface structuring to a surface of a workpiece on a machine tool, performing a feed motion of a milling cutter which is rotationally driven by a work spindle of the machine tool, received in a tool head of the machine tool and has at least one protruding cutting edge along the surface of the workpiece; applying the surface structuring in accordance with a predetermined pattern to the surface of the workpiece during the feed motion of the milling cutter on the basis of a control signal to an actuator which is integrated in the tool head and is configured to drive a vibration of the milling cutter on the basis of the control signal, wherein the control signal contains high-frequency carrier signal and a useful signal which modulates the carrier signal and which is generated on the basis of data indicating the predetermined pattern.

Method and device for applying a surface structuring to a workpiece on a machine tool

A machine tool includes a frame with two opposite frame sections, a number of leg elements arranged on the frame, and a first carriage having a first linear axis. The first carriage is guided on the two opposite sections of the frame and is displaceable in a first direction. A second carriage of a second linear axis is guided on the first carriage and is displaceable in a second direction A tower element has a third linear axis, which is retained on the second carriage. A machining element is retained on the tower element and is displaceable in a third direction, and a tool spindle is arranged on the machining element for receiving a tool.

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Wiesbaden, Germany

Jens Ketelaer