Abstract: A spindle system 100 comprises a spindle device 500 with a housing 102 and a work spindle to which a tool holder 400 can be releasably connected and a tool holder 400, with a clamping section 401, a gripper section 403, a tool receiving section 404 and a vibration transducer 405 coupled thereto and an energy transmission device 103 comprising a first induction element 104a and a second induction element 104b which are radially opposed to each other when the tool holder 400 is connected to the work spindle, wherein the second induction element 104b is formed integrally with the clamping section of the tool holder 401 such that an automated changing device can engage in the gripper section of the tool holder 403.

Abstract: The invention relates to a system and a method for controlling an ultrasound generator of a machine tool for generating ultrasound for machining a workpiece. According to the invention, a determined phase shift of the ultrasound is analyzed as a function of frequency and, based on the analysis, a regulation algorithm for controlling the frequency of the ultrasound generated by the ultrasound generator is determined.

Abstract: A method determines a position of a light wave guiding core body of an optical waveguide for machining on a numerically controlled machine tool. The waveguide includes the core body and a shell body enclosing it, both extending from a first end face to a second end face of the waveguide. The method includes providing an optical measurement system, including a light source device and a detection device, and measuring the first end face by the optical measurement system, including irradiating the waveguide by the light source, detecting radiation emitted by the first end face, and determining a position of a center point of the core body on the first end face based on the detected radiation. The optical measurement system is arranged on the machine tool. The measurement of the first end face is performed on the waveguide clamped on the machine table by the optical measurement system.

Abstract: The invention relates to a system and a method for controlling an ultrasound generator of a machine tool for generating ultrasound for machining a workpiece. According to the invention, a determined phase shift of the ultrasound is analyzed as a function of frequency and, based on the analysis, a regulation algorithm for controlling the frequency of the ultrasound generated by the ultrasound generator is determined.