EP2499075B1 - Clamping device for a shaft and method for clamping same - Google Patents

Clamping device for a shaft and method for clamping same Download PDF

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Publication number
EP2499075B1
EP2499075B1 EP10776107.4A EP10776107A EP2499075B1 EP 2499075 B1 EP2499075 B1 EP 2499075B1 EP 10776107 A EP10776107 A EP 10776107A EP 2499075 B1 EP2499075 B1 EP 2499075B1
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EP
European Patent Office
Prior art keywords
axis
lever
shaft
clamping
winding shaft
Prior art date
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Application number
EP10776107.4A
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German (de)
French (fr)
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EP2499075A1 (en
Inventor
Tim Oberdalhoff
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Windmoeller and Hoelscher KG
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Windmoeller and Hoelscher KG
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Publication of EP2499075A1 publication Critical patent/EP2499075A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/028—Both ends type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/41308—Releasably clamping the web roll shaft
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the invention relates to a clamping device for a shaft and a method for clamping such.
  • the apparatus and methods may be used initially in all possible fields of technology. However, they are particularly suitable when storing and holding winding shafts. Here is a special place to use the winding shaft pulling device.
  • chucks are required with high clamping forces. So far, for example, used wedge hook feed, which are operated hydraulically or with very large pneumatic cylinders. Alternatively, clamping devices are used, which are closed by means of motor spindles.
  • wedge hook chucks can apply large clamping forces, they only have a small stroke. Furthermore, these are very expensive. If these are operated hydraulically, an additional hydraulic unit is required. In addition, hydraulic units in the production of z. As food films that are wound in the respective winding device, not gladly seen. As an alternative to using large pneumatic cylinders are very expensive.
  • the DE 1270917 B also shows a device for holding a winding shaft, wherein the winding shaft can be fixed by the employment of at least one body in a receptacle.
  • the power for the employment is transmitted with a lever on the body, which is rotatably mounted about a first axis.
  • the expert has by tuning the leverage an optimization range between a small travel and a large contact force and a large travel and a small contact force.
  • the object of the present invention is therefore to propose an apparatus and a method which overcomes or at least reduces the described disadvantages of the known device.
  • a lever is provided in the device, which is rotatably mounted about a first axis.
  • a stationary positioning and / or a first axis which is parallel to the holding position of the shaft to be held in its receptacle, are advantageous.
  • this device comprises components that are necessary to quasi connect the lever to a second axis of rotation. This can be done by a body that has a round or curved surface, is made with this surface against the lever. Alternatively or additionally, a bore or recess may be provided in the lever, in which a body engages, which then defines the second axis.
  • stops which in turn are movable, may be provided. If these are fixable in the effective range of the lever, they can be fixed with the
  • Lever affect executable pivoting movements. It is advantageous if the lever presses against a clamping jaw, which in turn determines the shaft.
  • the lever which is rotatably mounted about a first axis, is moved relative to the shaft.
  • the shaft when the shaft is locked, it will be moved towards and moved away from it when the shaft is released.
  • the lever Before performing the rotational movement about the lever, the lever can perform a linear movement relative to the shaft.
  • Fig. 1 shows a sketch of a device according to the invention in a first working position, in which the shaft 8 is located in the receptacle 3, without being held.
  • rails 1 are provided, on which the carriage 2 can slide in the vertical direction back and forth. With this carriage, the stops 4, the clamping jaws 3 and the first axis 10 of the lever 5 are movable. With correspondingly long rails 1 of this type can be achieved in the apparatus shown long opening distances.
  • the lever 5 can from the cylinder 7, which is preferably a pneumatic cylinder over the Piston 14 and the pivot point 13 of the piston get his manpower mediated.
  • FIG. 2 it can already be seen how the piston 14 of the cylinder 7 is retracted into the cylinder (arrow 15). This leads to the direction indicated by the arrow 16 movement of the carriage 2, in which the clamping jaws 3 is employed against the shaft 8.
  • FIG. 3 is shown how the situation by the continuation of the movement of the piston 14 shown by the arrow 14 changes in the cylinder 8: After the translation of the carriage has come to an end, since the jaw 3 has reached the shaft, it comes to a shown by the arrow 17 short further rotation about the first axis 9 until the lever 5 arrives on the left stop 4 '. The producible in this situation clamping forces on the shaft 8, however, are limited due to the leverage.
  • the clamping disk 6 is pivoted about the axis 12 - as shown by the arrow 18 - in a working position.
  • a second axis of rotation 10 which is represented here by the circle 10 and 10 would, however, move by the rolling movement of the lever 5 on the cam 6 along the contact surface between the two bodies 5, 6.
  • the linkage 12 is usually fixedly attached to the machine frame of the winding device and withstands great forces.
  • no movement is intended by a larger amount, but the introduction of the second rotation axis 10 leads to a significant change in the leverage over the situation in FIG.

Landscapes

  • Winding Of Webs (AREA)
  • Clamps And Clips (AREA)

Description

Die Erfindung betrifft eine Spannvorrichtung für eine Welle und ein Verfahren zum Einspannen einer solchen.
Die Vorrichtung und Verfahren können zunächst in allen möglichen Bereichen der Technik benutzt werden. Besonders geeignet sind sie jedoch beim Lagern und Halten von Wickelwellen. Hier ist ein besonderer Einsatzort die Wickelwellenziehvorrichtung.The invention relates to a clamping device for a shaft and a method for clamping such.
The apparatus and methods may be used initially in all possible fields of technology. However, they are particularly suitable when storing and holding winding shafts. Here is a special place to use the winding shaft pulling device.

Um Wickelwellen in der Wickelwellenziehvorrichtung einseitig zu halten, werden Spannfutter mit hohen Spannkräften benötigt.
Dafür benutzt man bisher z.B. Keilhakenfutter, welche hydraulisch bzw. mit sehr großen Pneumatikzylindern betätigt werden.
Alternativ dazu werden Spannvorrichtungen eingesetzt, die motorisch über Spindeln geschlossen werden.To keep winding shafts in the winding shaft pulling device on one side, chucks are required with high clamping forces.
So far, for example, used wedge hook feed, which are operated hydraulically or with very large pneumatic cylinders.
Alternatively, clamping devices are used, which are closed by means of motor spindles.

Nachteile:Disadvantage:

Keilhakenfutter können zwar große Spannkräfte aufbringen, haben dafür aber nur einen kleinen Hub. Weiterhin sind diese sehr teuer.
Wenn diese hydraulisch betätigt werden, ist zusätzlich ein Hydraulikaggregat erforderlich. Außerdem werden Hydraulikaggregate bei der Herstellung von z. B. Lebensmittelfolien, die in der betreffenden Wickelvorrichtung aufgewickelt werden, nicht gerne gesehen.
Alternativ zu verwendende große Pneumatikzylinder sind sehr teuer.Although wedge hook chucks can apply large clamping forces, they only have a small stroke. Furthermore, these are very expensive.
If these are operated hydraulically, an additional hydraulic unit is required. In addition, hydraulic units in the production of z. As food films that are wound in the respective winding device, not gladly seen.
As an alternative to using large pneumatic cylinders are very expensive.

Bei der Verwendung von Spannvorrichtungen mit Spindeltrieben hat man zwar große Verfahrwege, erreicht aber bei normaler Baugröße relativ geringe Spannkräfte. Ein weiteres Problem ist hierbei der Verschleiß an den Spindeltrieben infolge der Benutzung und das Öffnen der Spannvorrichtung aufgrund der Haftreibung.
Die DE 1270917 B zeigt ebenfalls eine Vorrichtung zum Halten einer Wickelwelle, wobei die Wickelwelle durch die Anstellung zumindest eines Körpers in einer Aufnahme festlegbar ist.
Die Kraft für die Anstellung wird mit einem Hebel auf den Körper übertragen, der um eine erste Achse drehbar gelagert ist. Bei solchen Vorrichtungen hat der Fachmann durch die Abstimmung der Hebelverhältnisse einen Optimierungsbereich zwischen einem kleinen Stellweg und einer großen Anstellkraft und einem großen Stellweg und einer kleinen Anstellkraft.
Die Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung und ein Verfahren vorzuschlagen, welche die geschilderten Nachteile der bekannten Vorrichtung behebt oder zumindest vermindert.Although the use of clamping devices with spindle drives you have great travels, but achieved at normal size relatively low clamping forces. Another problem here is the wear on the spindle drives as a result of use and the opening of the clamping device due to the static friction.
The DE 1270917 B also shows a device for holding a winding shaft, wherein the winding shaft can be fixed by the employment of at least one body in a receptacle.
The power for the employment is transmitted with a lever on the body, which is rotatably mounted about a first axis. In such devices, the expert has by tuning the leverage an optimization range between a small travel and a large contact force and a large travel and a small contact force.
The object of the present invention is therefore to propose an apparatus and a method which overcomes or at least reduces the described disadvantages of the known device.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 und des Anspruchs 11 gelöst. Demnach ist in der Vorrichtung ein Hebel vorzusehen, der um eine erste Achse drehbar gelagert ist. Mit dieser Maßnahme lassen sich die Kräfte erhöhen und es ist möglich, auch große Stellbereiche zu erhalten.
Eine ortsfeste Positionierung und/oder eine erste Achse, die parallel zu der Halteposition der zu haltenden Welle in ihrer Aufnahme ist, sind vorteilhaft.
Es ist besonders vorteilhaft, eine Vorrichtung zur Definition einer zweiten Drehachse, mit welcher sich nach Bedarf eine zweite Drehachse für den Hebel definieren lässt, vorzusehen. Diese Vorrichtung umfasst also Bauteile, die notwendig sind, um dem Hebel eine zweite Drehachse quasi zuzuschalten. Dies kann geschehen, indem ein Körper, der über einen runde beziehungsweise kurvenförmige Oberfläche verfügt, mit dieser Oberfläche gegen den Hebel angestellt wird.
Alternativ oder ergänzend kann eine Bohrung oder Ausnehmung in dem Hebel vorgesehen sein, in die ein Körper greift, der dann die zweite Achse definiert.According to the invention, this object is achieved by the features of claim 1 and claim 11. Accordingly, a lever is provided in the device, which is rotatably mounted about a first axis. With this measure, the forces can be increased and it is possible to obtain even large adjustment ranges.
A stationary positioning and / or a first axis, which is parallel to the holding position of the shaft to be held in its receptacle, are advantageous.
It is particularly advantageous to provide a device for defining a second axis of rotation, with which a second axis of rotation for the lever can be defined as required. Thus, this device comprises components that are necessary to quasi connect the lever to a second axis of rotation. This can be done by a body that has a round or curved surface, is made with this surface against the lever.
Alternatively or additionally, a bore or recess may be provided in the lever, in which a body engages, which then defines the second axis.

Insbesondere bei der zweiten Achse kann es vorkommen, dass keine vom Betrag her nennenswerten Drehbewegungen mehr um die zweite Achse stattfinden, sondern dass diese lediglich zur Herbeiführung von Hebelverhältnissen dient, mit denen adäquate Klemmkräfte aufgebracht werden können.In particular, in the case of the second axis, it may happen that no rotational movements that are noteworthy of the amount take place more about the second axis, but that this only serves to bring about lever ratios with which adequate clamping forces can be applied.

Es können Anschläge, die ihrerseits bewegbar sind, vorgesehen sein. Wenn diese in dem Wirkbereich des Hebels fixierbar sind, können sie die mit demThere may be stops, which in turn are movable, may be provided. If these are fixable in the effective range of the lever, they can be fixed with the

Hebel ausführbaren Schwenkbewegungen beeinflussen. Vorteilhaft ist es, wenn der Hebel gegen einen Spannbacken drückt, der seinerseits die Welle festlegt.Lever affect executable pivoting movements. It is advantageous if the lever presses against a clamping jaw, which in turn determines the shaft.

Bei der Ausführung der erfindungsgemäßen Verfahren ist es vorteilhaft, wenn der Hebel, der um eine erste Achse drehbar gelagert ist, relativ zur Welle bewegt wird. In der Regel wird er beim Festlegen der Welle auf diese zu bewegt und von ihr wegbewegt werden, wenn die Welle wieder freigegeben wird. Vor der Ausführung der Drehbewegung um den Hebel kann der Hebel eine Linearbewegung relativ zu der Welle ausführen.In carrying out the method according to the invention, it is advantageous if the lever, which is rotatably mounted about a first axis, is moved relative to the shaft. As a rule, when the shaft is locked, it will be moved towards and moved away from it when the shaft is released. Before performing the rotational movement about the lever, the lever can perform a linear movement relative to the shaft.

Weitere Ausführungsbeispiele der Erfindung gehen aus der gegenständlichen Beschreibung und den Ansprüchen hervor.
Die einzelnen Figuren zeigen:

Fig. 1
Eine Skizze einer erfindungsgemäßen Vorrichtung in einer ersten Arbeitsstellung
Fig. 2
Eine Skizze der erfindungsgemäßen Vorrichtung aus Figur 1 in einer zweiten Arbeitsstellung
Fig. 3
Eine Skizze der erfindungsgemäßen Vorrichtung aus Figur 1 in einer dritten Arbeitsstellung
Fig. 4
Eine Skizze der erfindungsgemäßen Vorrichtung aus Figur 1 in einer vierten Arbeitsstellung
Fig. 5
Eine Skizze der erfindungsgemäßen Vorrichtung aus Figur 1 in der bereits in Figur 4 gezeigten vierten Arbeitsstellung, wobei weitere Pfeile eingezeichnet sind
Further embodiments of the invention will become apparent from the description and the claims.
The individual figures show:
Fig. 1
A sketch of a device according to the invention in a first working position
Fig. 2
A sketch of the device according to the invention FIG. 1 in a second job
Fig. 3
A sketch of the device according to the invention FIG. 1 in a third job
Fig. 4
A sketch of the device according to the invention FIG. 1 in a fourth job
Fig. 5
A sketch of the device according to the invention FIG. 1 in the already in FIG. 4 shown fourth working position, with more arrows are shown

Fig. 1 zeigt eine Skizze einer erfindungsgemäßen Vorrichtung in einer ersten Arbeitsstellung, in der die Welle 8 in der Aufnahme 3 liegt, ohne gehalten zu werden. Bei der Spannvorrichtung 19 sind Schienen 1 vorgesehen, auf denen der Schlitten 2 in vertikaler Richtung hin und her gleiten kann. Mit diesem Schlitten sind die Anschläge 4, der Spannbacken 3 und die erste Achse 10 des Hebels 5 bewegbar. Mit entsprechend langen Schienen 1 dieser Art lassen sich bei der gezeigten Vorrichtung lange Öffnungswege erreichen. Der Hebel 5 kann von dem Zylinder 7, welcher vorzugsweise ein Pneumatikzylinder ist, über den Kolben 14 und den Anlenkpunkt 13 des Kolbens seine Arbeitskraft vermittelt bekommen. Fig. 1 shows a sketch of a device according to the invention in a first working position, in which the shaft 8 is located in the receptacle 3, without being held. In the tensioning device 19 rails 1 are provided, on which the carriage 2 can slide in the vertical direction back and forth. With this carriage, the stops 4, the clamping jaws 3 and the first axis 10 of the lever 5 are movable. With correspondingly long rails 1 of this type can be achieved in the apparatus shown long opening distances. The lever 5 can from the cylinder 7, which is preferably a pneumatic cylinder over the Piston 14 and the pivot point 13 of the piston get his manpower mediated.

In Figur 2 ist bereits zu sehen, wie der Kolben 14 des Zylinders 7 in den Zylinder eingefahren wird (Pfeil 15). Hierbei kommt es zu der durch den Pfeil 16 angedeuteten Bewegung des Schlittens 2, bei der auch der Spannbacken 3 gegen die Welle 8 angestellt wird. In Figur 3 ist dargestellt, wie sich die Situation durch das Andauern der durch den Pfeil 15 dargestellten Bewegung des Kolbens 14 in den Zylinder 8 ändert: Nachdem die Translation des Schlittens zu einem Ende gekommen ist, da der Spannbacken 3 die Welle erreicht hat, kommt es zu einer durch den Pfeil 17 dargestellten kurzen weiteren Rotation um die erste Achse 9, bis der Hebel 5 auf dem linken Anschlag 4' ankommt. Die in dieser Situation erzeugbaren Klemmkräfte auf die Welle 8 sind jedoch aufgrund der Hebelverhältnisse begrenzt.
In dieser Situation wird die Spannscheibe 6 um die Achse 12 - wie durch den Pfeil 18 dargestellt - in eine Arbeitsposition geschwenkt. Hier definiert sie eine zweite Drehachse 10, die hier durch den Kreis 10 dargestellt ist und die 10 sich allerdings durch die Abrollbewegung des Hebels 5 an der Kurvenscheibe 6 entlang der Berührungsfläche zwischen den beiden Körpern 5, 6 bewegen würde. Im vorliegenden Ausführungsbeispiel bilden also der Hebel 5, die Spannscheibe 6 und deren Anlenkung 12 die Vorrichtung zur Definition einer Drehachse 11. Die Anlenkung 12 ist in der Regel fest am Maschinengestell der Wickelvorrichtung befestigt und hält großen Kräften stand.
Jedoch ist bei dem vorliegenden Ausführungsbeispiel keine Bewegung um einen größeren Betrag beabsichtigt, sondern die Einführung der zweiten Drehachse 10 führt zur signifikanten Änderung der Hebelverhältnisse gegenüber der Situation in Figur 3. Aufgrund dieses Umstandes wird die Wickelwelle 8 mit großer Kraft geklemmt, wenn der Kolben 14 wieder aus dem Zylinder 7 herausfährt, wie es durch den Pfeil 20 in Figur 5 dargestellt wird. Die Kräfte haben etwas mit den Abstand 21 zwischen der zweiten Drehachse 10 und dem Anlenkpunkt 14 sowie mit dem Abstand 22 der zweiten Drehachse 10 und der ersten Achse 9 orthogonal zu der Wirkrichtung der Kraft F zu tun.In FIG. 2 it can already be seen how the piston 14 of the cylinder 7 is retracted into the cylinder (arrow 15). This leads to the direction indicated by the arrow 16 movement of the carriage 2, in which the clamping jaws 3 is employed against the shaft 8. In FIG. 3 is shown how the situation by the continuation of the movement of the piston 14 shown by the arrow 14 changes in the cylinder 8: After the translation of the carriage has come to an end, since the jaw 3 has reached the shaft, it comes to a shown by the arrow 17 short further rotation about the first axis 9 until the lever 5 arrives on the left stop 4 '. The producible in this situation clamping forces on the shaft 8, however, are limited due to the leverage.
In this situation, the clamping disk 6 is pivoted about the axis 12 - as shown by the arrow 18 - in a working position. Here it defines a second axis of rotation 10, which is represented here by the circle 10 and 10 would, however, move by the rolling movement of the lever 5 on the cam 6 along the contact surface between the two bodies 5, 6. In the present embodiment, therefore, form the lever 5, the clamping plate 6 and its linkage 12, the device for defining a rotation axis 11. The linkage 12 is usually fixedly attached to the machine frame of the winding device and withstands great forces.
However, in the present embodiment, no movement is intended by a larger amount, but the introduction of the second rotation axis 10 leads to a significant change in the leverage over the situation in FIG. 3 , Due to this fact, the winding shaft 8 is clamped with great force when the piston 14 again moves out of the cylinder 7, as indicated by the arrow 20 in FIG. 5 is pictured. The forces have something to do with the distance 21 between the second axis of rotation 10 and the pivot point 14 and with the distance 22 of the second axis of rotation 10 and the first axis 9 orthogonal to the direction of action of the force F.

Zum Freilegen der Welle 8 laufen die Vorgänge in umgekehrter Reihenfolge ab. Aus darstellerischen Gründen wurde der Hebel 5, der vor dem Schlitten 2 liegt, durchsichtig - also ohne Flächenfarbe - dargestellt, während Bauteile wie der Schlitten mit Flächenfarbe dargestellt wurden.To expose the shaft 8, the processes take place in the reverse order. For illustrative reasons, the lever 5, which is in front of the carriage 2, transparent - ie without surface color - shown, while components such as the carriage were presented with area color.

Zusammenfassend lässt sich also Folgendes zu der beschriebenen Ausführungsform der Spannvorrichtung 19 sagen:In summary, therefore, the following can be said about the described embodiment of the tensioning device 19:

Bei der gezeigten Spannvorrichtung 19 erreicht man mit einem relativ kleinen pneumatischen Antrieb (Zylinder 7) große Verfahrwege mit großen Spannkräften.In the clamping device 19 shown to reach with a relatively small pneumatic drive (cylinder 7) large travels with large clamping forces.

Hierbei macht sich diese Spannvorrichtung 19 folgende Umstände zu nutze:

  1. 1. Zunächst werden große Verfahrwege zum Schließen bzw. Öffnen der Spannvorrichtung über das einfache Verfahren des Pneumatikzylinders erreicht (Figuren 1 bis 3).
  2. 2. Dann werden hohe Spannkräfte über das "Hinzuführen oder Hinzufügen" eines zusätzlichen Drehpunktes 10 und das daraus resultierende Hebelverhältnis erreicht.
Here, this tensioning device 19 makes use of the following circumstances:
  1. 1. First of all, large travel paths for closing or opening the tensioning device are achieved via the simple method of the pneumatic cylinder ( FIGS. 1 to 3 ).
  2. 2. Then high clamping forces on the "addition or addition" of an additional pivot point 10 and the resulting lever ratio can be achieved.

Zu den Vorteilen der Vorrichtung 19 gehören damit:

  • hohe Spannkräfte sind zu erreichen;
  • große Verfahrwege sind zu erreichen;
  • kleine pneumatische Antriebe 7 sind einsetzbar (z. B. kleine Stellwege);
  • es herrscht eine mechanische Sicherung gegen Öffnen der Spannvorrichtung 19 bei Energieabfall durch den zusätzlichen Drehpunkt 10;
  • die Vorrichtung 19 vergleichsweise kostengünstig darstellbar.
The advantages of the device 19 thus include:
  • high clamping forces can be achieved;
  • large travel distances can be reached;
  • small pneumatic drives 7 can be used (eg small travel ranges);
  • There is a mechanical safeguard against opening of the clamping device 19 in the case of energy waste by the additional pivot point 10;
  • the device 19 comparatively inexpensive displayed.

Weitere Vorteile sind zu erreichen, wenn die Steigung der Kurvenscheibe an ihrer Umfangsfläche 23 variiert wird. Wenn diese Steigung z. B. unmittelbar in der Umgebung des Punktes, an dem die Welle 8 festgelegt wird (oft dort, wo der Abstand der Umfangsfläche 23 von dem Drehpunkt 12 der Kurvenscheibe 6 am Größten ist) klein ist (vorteilhafterweise gegenüber der restlichen Umfangsfläche am Kleinsten), kann auch mit der Kurvenscheibe eine große Schließkraft erreicht werden. Bezugszeichenliste 1 Führungsschienen 2 Führungsschlitten 3 Spannbacken/Aufnahme für die Welle 8 4 4' Anschläge 5 Spannhebel 6 Kurvenscheibe (spiralförmig) 7 Zylinder 8 Wickelwelle 9 Erste Achse 10 Zweite Achse 11 Vorrichtung zur Definition einer Drehachse 12 Drehpunkt/-achse der Spannscheibe 13 Anlenkung Kolben an Hebel 14 Kolben 15 Pfeil 16 Pfeil 17 Pfeil 18 Pfeil 19 Spannvorrichtung 20 Pfeil 21 Abstand zwischen 13 und 10 22 Abstand horizontal zwischen 10 und 9 23 Umfang der Kurvenscheibe 6 24 Abstand zwischen dem Umfang 23 der Kurvenscheibe 6 und dem Drehpunkt/-achse 12 der Kurvenscheibe 6 F Wirkrichtung der Klemmkraft auf die Welle 8 Further advantages can be achieved if the pitch of the cam disk is varied on its peripheral surface 23. If this slope z. B. directly in the vicinity of the point at which the shaft 8 is fixed (often where the distance of the peripheral surface 23 from the pivot point 12 of the cam 6 is the largest) is small (advantageously the smallest with respect to the remaining peripheral surface), also with the cam a great closing force can be achieved. LIST OF REFERENCE NUMBERS 1 guide rails 2 guide carriage 3 Clamping jaws / mounting for the shaft 8 4 4 ' attacks 5 clamping lever 6 Cam (spiral) 7 cylinder 8th winding shaft 9 First axle 10 Second axis 11 Device for defining a rotation axis 12 Pivot point / axis of the clamping disc 13 Linkage Piston to lever 14 piston 15 arrow 16 arrow 17 arrow 18 arrow 19 jig 20 arrow 21 Distance between 13 and 10 22 Distance horizontally between 10 and 9 23 Circumference of the cam 6 24 Distance between the circumference 23 of the cam 6 and the pivot point / axis 12 of the cam 6th F Direction of action of the clamping force on the shaft. 8

Claims (13)

  1. Apparatus (19) for holding a winding shaft (8),
    - by way of which apparatus (19) the shaft (8) can be fixed in a receptacle (3) by at least one body (3) being set against it,
    - and having a lever (5) which is mounted such that it can be rotated about a first axis (9),
    characterized in that
    the first axis (9) is positioned displaceably with respect to the receptacle (3).
  2. Apparatus according to one of the preceding claims,
    characterized in that
    the first axis (9) runs parallel to the holding position of the winding shaft (8).
  3. Apparatus according to one of the preceding claims,
    characterized by
    an apparatus (11) for defining a second rotational axis (10), by way of which apparatus (11) a second rotational axis (10) can be defined for the lever (5) if required.
  4. Apparatus according to the preceding claim,
    characterized in that
    the apparatus (11) for defining a second rotational axis (12) comprises a cam disc (6).
  5. Apparatus according to the preceding claim,
    characterized in that
    the cam disc (6) for its part can be pivoted about an axis (12).
  6. Apparatus according to Claim 4,
    characterized in that
    an apparatus (11) for defining a second rotational axis (10) comprises a bore in the lever (5).
  7. Apparatus according to one of the preceding claims,
    characterized by
    at least one stop (4, 4'), against which the lever (5) acts during its working movement.
  8. Apparatus according to one of the preceding claims,
    characterized by
    at least one clamping jaw (3) which can be loaded with a force by way of the lever (5), and by way of which clamping jaw (3) the winding shaft (8) can be fixed.
  9. Apparatus according to one of the preceding claims,
    characterized by
    at least one cylinder (7), preferably a pneumatic cylinder.
  10. Apparatus according to one of the preceding claims,
    characterized by
    a transport apparatus (1, 2), by way of which the first axis (9) can be moved relative to the shaft (8).
  11. Method for holding a winding shaft (8),
    - in which method the winding shaft (8) is fixed in a receptacle (3),
    - by at least one body (3) being set in the direction of the winding shaft (8),
    - a rotational movement of a lever (5) being performed about a first axis (9),
    characterized by
    - the definition of a second axis (10),
    - and a rotational movement of the lever (5) about the second axis (10).
  12. Method according to the preceding claim,
    characterized in that,
    before the rotational movement of the lever (5) about the first axis (9), a movement of the first axis (9) takes place in the direction of the winding shaft (8).
  13. Method according to the preceding claim,
    characterized in that,
    during the movement of the first axis (9) in the direction of the winding shaft (8), at least one stop (4, 4') and at least one clamping jaw (3) are also moved.
EP10776107.4A 2009-11-10 2010-11-10 Clamping device for a shaft and method for clamping same Active EP2499075B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009052411 2009-11-10
PCT/EP2010/067238 WO2011058073A1 (en) 2009-11-10 2010-11-10 Clamping device for a shaft and method for clamping same

Publications (2)

Publication Number Publication Date
EP2499075A1 EP2499075A1 (en) 2012-09-19
EP2499075B1 true EP2499075B1 (en) 2016-01-27

Family

ID=43446433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10776107.4A Active EP2499075B1 (en) 2009-11-10 2010-11-10 Clamping device for a shaft and method for clamping same

Country Status (3)

Country Link
US (1) US9272871B2 (en)
EP (1) EP2499075B1 (en)
WO (1) WO2011058073A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107777401A (en) * 2017-11-17 2018-03-09 深圳市佳得设备科技有限公司 A kind of Scroll auto lock detent mechanism

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Also Published As

Publication number Publication date
EP2499075A1 (en) 2012-09-19
WO2011058073A1 (en) 2011-05-19
US9272871B2 (en) 2016-03-01
US20120200023A1 (en) 2012-08-09

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