The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 06, 2015
Filed:
Sep. 24, 2009
Juergen Fronius, Walheim/Neckar, DE;
Wolfgang Bierl, Gueglingen, DE;
Heiko Graf, Gerlingen, DE;
Ewald Hasselkuss, Fellbach, DE;
Roland Hoerl, Boennigheim, DE;
Gerhard Stolz, Ingersheim, DE;
Juergen Fronius, Walheim/Neckar, DE;
Wolfgang Bierl, Gueglingen, DE;
Heiko Graf, Gerlingen, DE;
Ewald Hasselkuss, Fellbach, DE;
Roland Hoerl, Boennigheim, DE;
Gerhard Stolz, Ingersheim, DE;
KOMET GROUP GMBH, Besigheim, DE;
Abstract
The invention relates to a machining center for work piece machining. The machining center comprises a machine frame, a machine spindle driven by a motor and rotatably arranged on the machine frame, and a group of machine tools that can be exchanged on the machine spindle. The machine tools comprise a coupling shaft that is compatible with a holder of the machine spindle. Furthermore, a rotary transmitter for electric energy is provided, having a stator fixed to the machine in a stationary manner and a rotor rotating along with the machine spindle. It is claimed as novel that the rotary transmitter comprises at least two transmission paths for electric energy which can be selected according to the electric power to be transmitted and the rotational speed of the spindle to be set and which can be activated in the coupled state of the machine tool. At least one first transmission path between the stator and rotor is designed in a non-contact way, while at least one second transmission path between the stator and rotor is provided with contacting contacts. With said measures, complete machining of the workpieces can be made possible when clamped in the machining center.