Spindle System With an Induction Element Integrated Into the Clamping Section of the Tool Holder

A spindle system (100) for use on a machine tool, comprising at least:

• a spindle device (500) comprising a rotationally driven work spindle with a receiving section for releasably connecting a tool holder (400) and a spindle housing (102) in which the work spindle is mounted;
• a tool holder (400) comprising at least:
• a clamping section (401) for releasably connecting to a work spindle of a spindle device (100),
• a gripper section (403) arranged below the clamping section (401) relative to a clamping end of the tool holder (402),
• a tool receiving section (404), and
• a vibration transducer (405) coupled to the tool receiving section (404) and configured to vibrate a machining tool received in the tool receiving section (404);
• and
• an energy transmission device (103) comprising a first induction element (104a) and a second induction element (104b);
• wherein the first induction element (104a) is arranged on the spindle housing (102) and the second induction element (104b) is arranged on the tool holder (400) in the clamping section (401) and, when the tool holder (400) is connected to the work spindle, the energy transmission device (103) is configured to transmit energy between the first induction element (104a) and the second induction element (104b) radially opposite the first induction element in a contactless manner for supplying energy to the vibration transducer (405);
• and
• 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).