An elliptical ultrasonic machining device powered by non-contact induction mainly includes an induction power supply device and an elliptical ultrasonic spindle shank, wherein: induction power supply secondary units of the induction power supply device encircle a spindle shank shell of the elliptical ultrasonic spindle shank; induction power supply primary units are arranged at a primary magnetic core seat outside the elliptical ultrasonic spindle shank; the primary magnetic core seat and the elliptical ultrasonic spindle shank have a same circle center, and a small gap exists between the primary magnetic core seat and the elliptical ultrasonic spindle shank; the primary magnetic core seat is fastened on a machine tool spindle seat of a machine tool through a support and keeps still; the elliptical ultrasonic spindle shank is mounted on a machine tool spindle through a taper shank and rotates with the spindle in a high speed.

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.

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.

A workpiece accommodation device for purposes of accommodating a workpiece and for use in a device for the machining of a workpiece with: a tool mounting for purposes of accommodating the tool, a workpiece accommodation device for purposes of accommodating the workpiece, characterized in that during the machining process at least one first oscillation component can be introduced in a Z-direction, and an, in particular simultaneous, second oscillation component can be introduced in an X- and/or Y-direction by means of oscillation components.

A high-speed precision interrupted ultrasonic vibration cutting method includes steps of: (1) installing an ultrasonic vibration apparatus on a machine tool, and stimulating a cutting tool to generate a transverse vibration, so as to realize varieties of machining processes; (2) realizing an interrupted cutting process by setting cutting parameters and vibration parameters to satisfy an interrupted cutting conditions; and (3) turning on the ultrasonic vibration apparatus and the machine tool, and starting a high-speed precision interrupted ultrasonic vibration cutting process. High-speed precision interrupted ultrasonic vibration cutting is able to be realized through the above steps during machining of difficult-to-machine materials in aviation and aerospace fields. A cutting speed is enhanced significantly, and exceeds a critical cutting speed of a conventional ultrasonic vibration cutting method and an elliptical ultrasonic vibration cutting method and even a high speed range of a traditional cutting method.