Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Fronius
Juergen Fronius, Walheim/neckar DE
| Patent application number | Description | Published |
|---|---|---|
| 20110103912 | MACHINING CENTER HAVING ROTARY TRANSMITTER FOR ELECTRIC ENERGY - 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. | 05-05-2011 |
| 20110299953 | MACHINE TOOL COMPRISING A MACHINE SPINDLE, A TOOL HOLDER AND A CONTACT POINT FOR ELECTRIC CURRENT OR DATA TRANSMISSION - The invention relates to a machine tool comprising a motor-driven machine spindle which can be rotated about a spindle axis. The machine spindle comprises a tool holder arranged at the face. A tool is exchangeably arranged on the machine spindle. The tool has a coupling element which is compatible with the tool holder of the machine spindle. The coupling element has a rear surface pointing toward the machine spindle. The tool holder comprises a face arranged opposite of the rear surface of the coupling element. The machine tool comprises at least one galvanic contact point for the electric current or data transmission, said point being arranged between the machine spindle and the tool and rotating together with the machine spindle. The galvanic contact point has a contact element which is arranged at the face of the tool holder on the spindle side, and a contact element which is arranged on the rear surface of the coupling element on the tool side. The contact element arranged on the spindle side and the contact element arranged on the tool side can be moved relative to each other by the action of a centrifugal force component occurring during the rotation of the machine spindle about the spindle axis and can be pressed against each other to make contact. | 12-08-2011 |
Juergen Fronius, Stuttgart DE
| Patent application number | Description | Published |
|---|---|---|
| 20090249925 | Tool Head with Adjusting Motor - A tool head includes a working slide which can be adjusted relative to a basic body, and an electric adjusting motor which acts on the working slide via gears. The motor includes a stator and a rotor which runs round in the stator, bears an output shaft and is mounted in two pivot bearings arranged at a distance from one another, wherein one of the pivot bearings is arranged with an outer ring in a basic body-mounted stator housing and with an inner ring directly or indirectly on the output shaft. The stator housing includes a sleeve which engages and is fixed to the stator for rotation and displacement, and a bearing cover which closes off the sleeve on the gear side and bears the outer ring of the first pivot bearing. The second pivot bearing is arranged in a separate centring ring fastened inside the stator. | 10-08-2009 |
Juergen Fronius, Walheim DE
| Patent application number | Description | Published |
|---|---|---|
| 20110318118 | MACHINE TOOL HAVING ADJUSTABLE PLATE ELEMENT - The main body ( | 12-29-2011 |
Kuno Fronius, Lauffen DE
| Patent application number | Description | Published |
|---|---|---|
| 20090194383 | DUAL CLUTCH ARRANGEMENT - A dual clutch arrangement for a dual clutch transmission for motor vehicles has a first and a second friction clutch. The friction clutches have a common input member and in each case one output member. The output member of the first friction clutch is connected to a first shaft. The output member of the second friction clutch is connected to a second shaft which is formed as a hollow shaft concentrically around the first shaft. The first and the second friction clutches are nested radially one inside the other. The input member is mounted radially on the second shaft. | 08-06-2009 |
| 20100187067 | ACTUATING MECHANISM FOR ENGAGING AND DISENGAGING A SEPARATING CLUTCH, WITH ROTATABLE CAM SEGMENT - The invention relates to an actuating mechanism for engaging and disengaging a separating clutch of a single-clutch or multiple-clutch transmission, which has a housing, for a motor vehicle, having: an actuating drive; a cam segment which has a curved recess and which is rotatable about a first bearing, said first bearing being fixed with respect to the housing, and which can be rotated by the actuating drive in an engagement rotational direction or a disengagement rotational direction; and an engagement fork which is rotatable about a second bearing, said second bearing being fixed with respect to the housing, and which is coupled at one side of the fork to the cam segment by means of a cam follower and which can be coupled on an opposite side of the fork to the separating clutch in such a way that the separating clutch is closed in the event of a rotation of the cam segment in the engagement rotational direction and the separating clutch is opened in the event of a rotation of the cam segment in the disengagement rotational direction. The cam follower engages into the curved recess and being guided by a contour of the curved recess in the event of a rotation of the cam segment; with the contour being shaped such that the cam follower is offset in a radial direction of the cam segment in the event of an actuation of the actuating drive (FIG. | 07-29-2010 |