DE202010011199U1 - External locking of axially moving parts for hydraulic or pneumatic cylinders - Google Patents

External locking of axially moving parts for hydraulic or pneumatic cylinders Download PDF

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Publication number
DE202010011199U1
DE202010011199U1 DE202010011199U DE202010011199U DE202010011199U1 DE 202010011199 U1 DE202010011199 U1 DE 202010011199U1 DE 202010011199 U DE202010011199 U DE 202010011199U DE 202010011199 U DE202010011199 U DE 202010011199U DE 202010011199 U1 DE202010011199 U1 DE 202010011199U1
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Prior art keywords
piston rod
lock according
sleeve
external lock
hook elements
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DE202010011199U
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/26—Locking mechanisms
    • F15B15/261—Locking mechanisms using positive interengagement, e.g. balls and grooves, for locking in the end positions

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Clamps And Clips (AREA)
  • Moulds, Cores, Or Mandrels (AREA)

Abstract

Externe Verriegelung axial bewegter Teile für Hydraulik- oder Pneumatikzylinder gekennzeichnet durch folgende Merkmale:
eine durch äußeren Druck bewegte Hülse (1) schiebt sich mit ihrer inneren Kegelfläche (2) über die äußeren Schrägen (3) von Hakenelementen (5), und diese verkeilen sich dann mit einer inneren Schräge (4) in einer Nut (6) der Kolbenstange, wenn die Kolbenstange (7) auf Widerstand stößt.External locking of axially moving parts for hydraulic or pneumatic cylinders characterized by the following features:
a sleeve (1) moved by external pressure pushes with its inner conical surface (2) over the outer slopes (3) of hook elements (5), and these then become wedged with an inner slope (4) in a groove (6) of the Piston rod when the piston rod (7) encounters resistance.

Figure 00000001
Figure 00000001

Description

Die Erfindung betrifft eine externe Verriegelungsvorrichtung für hydraulische oder pneumatische Arbeitszylinder. Solche mechanischen Verriegelungen ermöglichen, dass ein Zylinder eine wesentlich höhere Kraft aufnimmt als durch den Arbeitsdruck möglich wäre. Das ist unter anderem bei hydraulisch bewegten Kernen in Formwerkzeugen (Kunststoff-Spritzguss oder Metall-Druckguss) nötig, da der Forminnendruck sehr hoch ist.The invention relates to an external locking device for hydraulic or pneumatic working cylinder. Such mechanical locks allow a cylinder to receive a much higher force than would be possible by the working pressure. This is necessary, inter alia, in the case of hydraulically moved cores in molds (plastic injection molding or metal diecasting), since the internal mold pressure is very high.

Solche Verriegelungszylinder sind reichlich verfügbar und Stand der Technik. Zuletzt beschrieben in DE 37 30 808 A1 . Bei den bekannten Zylindern ist jedoch die Verriegelung integriert. Deswegen sind diese immer teuere Einzelanfertigungen mit entsprechender Lieferzeit. Außerdem ist die Verriegelung kaum auswechselbar. Dadurch dass sich bei der Erfindung die Verkeilung viel näher am Arbeitspunkt befindet verkürzen sich die Federwege und die Nachgiebigkeit des Gesamtsystems nimmt ab. Durch die zahlreichen, umlaufend angeordneten Hakenelemente, kann diese Verriegelung besonders viel Kraft Aufnehmen.Such locking cylinders are abundant and state of the art. Last described in DE 37 30 808 A1 , In the known cylinders, however, the lock is integrated. That's why these are always expensive one-offs with corresponding delivery time. In addition, the lock is hardly replaceable. The fact that in the invention, the wedging is much closer to the operating point shorten the spring travel and the flexibility of the overall system decreases. Due to the numerous, circumferentially arranged hook elements, this lock can take a lot of power.

Ausführungsbeispielembodiment

Die Erfindung ist anhand der Zeichnungen näher erläutert. 2 zeigt die Verriegelung in offener Stellung. Sie kann axial beliebig bewegt werden. Wenn der in die T-Nut 8 eingehängte Kern anschlägt, wie es in Formwerkzeugen üblich ist, schiebt die Hülse 1 über die innere Kegelfläche 2 die Hakenelemente 5 in die Nut 6 der Kolbenstange 7 und verkeilt sämtliche Teile. Auf das Gewinde 10 kann direkt die Kolbenstange eines Hydraulikzylinders geschraubt werden, die beim Ausfahren die Verriegelung in Betrieb setzt. Da die Kolbenstange 7 durch die offenen Hakenelemente 5 durchpasst, kann sie über große Strecken bewegt werden.The invention is explained in more detail with reference to the drawings. 2 shows the lock in the open position. It can be moved axially as desired. When in the T-slot 8th hinged core strikes, as is common in molds, pushes the sleeve 1 over the inner conical surface 2 the hook elements 5 in the groove 6 the piston rod 7 and wedges all parts. On the thread 10 can be screwed directly to the piston rod of a hydraulic cylinder, which puts the lock in operation when extending. Because the piston rod 7 through the open hook elements 5 through, it can be moved over long distances.

1 zeigt die Erfindung in gespanntem Zustand. Auf das Gewinde 10 der Hülse 1 drückt z. B. ein Hydraulikzylinder, die die Hakenelemente 5 werden über die innere Kegelfläche 2 in die Nut 6 gedrückt und mit der Kobenstange 7 verkeilt. Über die Hakenelemente 5 und den Ring 13 wird die Kraft in den Rahmen geleitet. Da die Hülse 1 in Längsrichtung nicht anschlägt ist bei anhaltendem Druck auf das Gewinde 10 eine dauernde Druckspannung gewährleistet. 1 shows the invention in a stretched state. On the thread 10 the sleeve 1 press z. B. a hydraulic cylinder, the hook elements 5 Be over the inner conical surface 2 in the groove 6 pressed and with the Kobenstange 7 wedged. About the hook elements 5 and the ring 13 the power is directed into the frame. Because the sleeve 1 does not strike in the longitudinal direction is on sustained pressure on the thread 10 ensures a permanent compressive stress.

3 zeigt die Verriegelung in perspektivischer Darstellung. Zur besseren Darstellung ist der Ring 13 und die Hülse 1 nur zur Hälfte sichtbar. 3 shows the lock in perspective view. For better illustration, the ring 13 and the sleeve 1 only half visible.

ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • DE 3730808 A1 [0002] DE 3730808 A1 [0002]

Claims (9)

Externe Verriegelung axial bewegter Teile für Hydraulik- oder Pneumatikzylinder gekennzeichnet durch folgende Merkmale: eine durch äußeren Druck bewegte Hülse (1) schiebt sich mit ihrer inneren Kegelfläche (2) über die äußeren Schrägen (3) von Hakenelementen (5), und diese verkeilen sich dann mit einer inneren Schräge (4) in einer Nut (6) der Kolbenstange, wenn die Kolbenstange (7) auf Widerstand stößt.External locking of axially moving parts for hydraulic or pneumatic cylinders characterized by the following features: a sleeve moved by external pressure ( 1 ) pushes with its inner conical surface ( 2 ) over the outer slopes ( 3 ) of hook elements ( 5 ), and these then wedged with an inner slope ( 4 ) in a groove ( 6 ) of the piston rod when the piston rod ( 7 ) encounters resistance. Externe Verriegelung nach Anspruch 1, dadurch gekennzeichnet, dass sich beim Zurückziehen der Hülse (1), ihre innere Kegelfläche (2) von den äußeren Schrägen (3) der Hakenelemente löst, eine Kolbenstange (7) zurückzieht und die Hakenelemente (5) über ihre inneren Schrägen (4) abstreift und dadurch die Verkeilung wieder löst.External lock according to claim 1, characterized in that when retracting the sleeve ( 1 ), its inner conical surface ( 2 ) from the outer slopes ( 3 ) of the hook elements releases a piston rod ( 7 ) and the hook elements ( 5 ) over their inner slopes ( 4 ) and thereby loosens the wedging again. Externe Verriegelung nach Anspruch 2 dadurch gekennzeichnet, dass durch eine Verkeilung axial auf einen am Ende der Kolbenstange (7) in einer Nut (8) befindlichen Kern ein Druck ausgeübt wird.External lock according to claim 2, characterized in that by a wedging axially on one at the end of the piston rod ( 7 ) in a groove ( 8th ) pressure is applied. Externe Verriegelung nach Anspruch 3 dadurch gekennzeichnet, dass der Hub der Hülse (1), die über einen Anschlagstift (9) mit der Kolbenstange (7) verbunden ist, in beide Richtungen begrenzt wird.External lock according to claim 3, characterized in that the stroke of the sleeve ( 1 ), which via a stop pin ( 9 ) with the piston rod ( 7 ) is bounded in both directions. Externe Verriegelung nach Anspruch 4 dadurch gekennzeichnet, dass die Hakenelemente (5) soweit zurückfedern bis die Kolbenstange (7) durch die Öffnung durchpaßt.External lock according to claim 4, characterized in that the hook elements ( 5 ) spring back until the piston rod ( 7 ) through the opening. Externe Verriegelung nach Anspruch 5 dadurch gekennzeichnet, dass sich am freien Ende der Hülse (1) ein Gewinde (10) oder Bolzen befindet wo die arbeitende Kraft eingeleitet wird.External lock according to claim 5, characterized in that at the free end of the sleeve ( 1 ) a thread ( 10 ) or bolt is where the working force is introduced. Externe Verriegelung nach Anspruch 6 dadurch gekennzeichnet, dass die Hülse (1) durch federnde Raster (11) in ihrer Position gehalten wird.External lock according to claim 6, characterized in that the sleeve ( 1 ) by resilient grid ( 11 ) is held in position. Externe Verriegelung nach Anspruch 7 dadurch gekennzeichnet, dass durch Federn (12) das Öffnen unterstützt und die Verriegelung offen gehalten wird.External lock according to claim 7, characterized in that by springs ( 12 ) the opening is supported and the lock is kept open. Externe Verriegelung nach Anspruch 7 dadurch gekennzeichnet, dass die Hakenelemente (5) mit einem Ring (13) und dieser mit dem Rahmen oder der Formplatte fest verbunden ist.External lock according to claim 7, characterized in that the hook elements ( 5 ) with a ring ( 13 ) And this is firmly connected to the frame or the mold plate.
DE202010011199U 2010-07-12 2010-07-12 External locking of axially moving parts for hydraulic or pneumatic cylinders Expired - Lifetime DE202010011199U1 (en)

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Application Number Priority Date Filing Date Title
DE202010011199U DE202010011199U1 (en) 2010-07-12 2010-07-12 External locking of axially moving parts for hydraulic or pneumatic cylinders

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010026826 DE102010026826A1 (en) 2010-07-12 2010-07-12 Wedge mechanism for locking linearly movable part such as core or form plate, comprises a push rod standing under pressure guided in housing over internal tapered surfaces of object that are diagonally guided in grooves
DE202010011199U DE202010011199U1 (en) 2010-07-12 2010-07-12 External locking of axially moving parts for hydraulic or pneumatic cylinders

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DE202010011199U1 true DE202010011199U1 (en) 2011-04-14

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DE201010026826 Withdrawn DE102010026826A1 (en) 2010-07-12 2010-07-12 Wedge mechanism for locking linearly movable part such as core or form plate, comprises a push rod standing under pressure guided in housing over internal tapered surfaces of object that are diagonally guided in grooves
DE202010011199U Expired - Lifetime DE202010011199U1 (en) 2010-07-12 2010-07-12 External locking of axially moving parts for hydraulic or pneumatic cylinders
DE202010010456U Expired - Lifetime DE202010010456U1 (en) 2010-07-12 2010-07-21 External locking of axially moving parts for hydraulic or pneumatic cylinders

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DE201010026826 Withdrawn DE102010026826A1 (en) 2010-07-12 2010-07-12 Wedge mechanism for locking linearly movable part such as core or form plate, comprises a push rod standing under pressure guided in housing over internal tapered surfaces of object that are diagonally guided in grooves

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104454772A (en) * 2014-11-03 2015-03-25 无锡市百顺机械厂 Oil cylinder cover anti-loosening device
DE102020106059A1 (en) 2020-03-06 2021-09-09 Bayerische Motoren Werke Aktiengesellschaft Method for producing a cast component and casting station

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5377659B2 (en) * 2008-10-29 2013-12-25 ボーグワーナー インコーポレーテッド Method and apparatus for machining a shaft
DE102014201047B4 (en) * 2014-01-21 2022-09-29 Volkswagen Aktiengesellschaft Casting mold for pressure casting of castings

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730808A1 (en) 1987-09-14 1989-03-23 Heb Hydraulik Elementebau Gmbh Locking device for hydraulic or pneumatic working cylinders

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE507160C2 (en) 1997-05-09 1998-04-20 Hans Mueller Hooks for molding tools

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3730808A1 (en) 1987-09-14 1989-03-23 Heb Hydraulik Elementebau Gmbh Locking device for hydraulic or pneumatic working cylinders

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104454772A (en) * 2014-11-03 2015-03-25 无锡市百顺机械厂 Oil cylinder cover anti-loosening device
DE102020106059A1 (en) 2020-03-06 2021-09-09 Bayerische Motoren Werke Aktiengesellschaft Method for producing a cast component and casting station

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DE202010010456U1 (en) 2011-02-10

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