DE202010010456U1 - 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
DE202010010456U1
DE202010010456U1 DE202010010456U DE202010010456U DE202010010456U1 DE 202010010456 U1 DE202010010456 U1 DE 202010010456U1 DE 202010010456 U DE202010010456 U DE 202010010456U DE 202010010456 U DE202010010456 U DE 202010010456U DE 202010010456 U1 DE202010010456 U1 DE 202010010456U1
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lock according
external
external lock
plunger
piston rod
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DE202010010456U
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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

Abstract

Externe Verriegelung axial bewegter Teile für Hydraulik- oder Pneumatikzylinder gekennzeichnet durch folgende Merkmale:
dass ein in einer Hülse (1) geführter und und durch äußeren Druck bewegter Stössel (2) über äußere Schrägflächen (3), Klinken (4), die in Nuten quer geführt sind nach außen drückt und über eine Schräge (5) in einer Ringnut fest verspannt, wenn die Kolbenstange (6) auf Widerstand stößt.External locking of axially moving parts for hydraulic or pneumatic cylinders characterized by the following features:
in that a plunger (2) guided in a sleeve (1) and moved by external pressure pushes outwards via outer inclined surfaces (3), pawls (4) which are guided transversely in grooves and via a bevel (5) in an annular groove firmly clamped when the piston rod (6) 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 .Such locking cylinders are abundant and state of the art. Last described 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.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.

Ausführungsbeispielembodiment

Die Erfindung ist anhand der Zeichnungen näher erläutert.The invention is explained in more detail with reference to the drawings.

2 zeigt die Verriegelung in offener Stellung. Sie kann axial beliebig bewegt werden. Wenn der in die T-Nut 9 eingehängte Kern anschlägt, wie es in Formwerkzeugen üblich ist, fahren die Klinken 4 aus, verriegeln und verspannen sämtliche Teile. Auf das Gewinde 10 kann direkt die Kolbenstange eines Hydraulikzylinders geschraubt werden, die beim Ausfahren die Verriegelung in Betrieb setzt. Da die offene Verriegelung durch den Ring 8 durchpaßt, kann sie über große Strecken bewegt werden. 2 shows the lock in the open position. It can be moved axially as desired. When in the T-slot 9 hinged core strikes, as is common in molds, drive the pawls 4 off, lock and tighten 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 open latch through the ring 8th can be moved over long distances.

1 zeigt die Erfindung in gespanntem Zustand. Auf das Gewinde 10 des Stössels 2 drückt z. B. ein Hydraulikzylinder, die Klinken 4 gehen nach außen und verkeilen sich über die Schrägen 5 im Rahmen. Da der Stössel 2 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 of the pestle 2 press z. B. a hydraulic cylinder, the pawls 4 go outside and wedge over the slopes 5 as part of. Since the plunger 2 does not strike in the longitudinal direction is on sustained pressure on the thread 10 ensures a permanent compressive stress.

3 zeigt die Verriegelung perspektivischer Darstellung. 3 shows the locking perspective view.

Zur besseren Darstellung ist der Ring 8 nur zur Hälfte sichtbar.For better illustration, the ring 8th 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 (8)

Externe Verriegelung axial bewegter Teile für Hydraulik- oder Pneumatikzylinder gekennzeichnet durch folgende Merkmale: dass ein in einer Hülse (1) geführter und und durch äußeren Druck bewegter Stössel (2) über äußere Schrägflächen (3), Klinken (4), die in Nuten quer geführt sind nach außen drückt und über eine Schräge (5) in einer Ringnut fest verspannt, wenn die Kolbenstange (6) auf Widerstand stößt.External locking of axially moving parts for hydraulic or pneumatic cylinders characterized by the following features: that in a sleeve ( 1 ) guided and and by external pressure moving plunger ( 2 ) over outer inclined surfaces ( 3 ), Latches ( 4 ), which are guided in grooves transversely outwards and over a slope ( 5 ) firmly clamped in an annular groove when the piston rod ( 6 ) encounters resistance. Externe Verriegelung nach Anspruch 1, dadurch gekennzeichnet, dass über innere Schrägflächen (7) des Stössels (2), die zu den äußeren etwa parallel sind, beim Zurückziehen die Verspannung auch wieder gelöst wird.External lock according to claim 1, characterized in that via inner inclined surfaces ( 7 ) of the pestle ( 2 ), which are approximately parallel to the outer, the tension is also released when pulling back. Externe Verriegelung nach Anspruch 2 dadurch gekennzeichnet, dass durch Schrägen (5) außen an den Klinken (4) eine Verkeilung axial im Ring (8) erfolgt und auf einen in einer Nut (9) am Ende der Kolbenstange (6) befindlichen Kern ein Druck ausgeübt wird.External lock according to claim 2, characterized in that by oblique ( 5 ) on the outside of the pawls ( 4 ) a wedging axially in the ring ( 8th ) and on one in a groove ( 9 ) at the end of the piston rod ( 6 ) pressure is applied. Externe Verriegelung nach Anspruch 3 dadurch gekennzeichnet, dass der Hub des Stössels (2) durch eine Hülse (1), die mit der Kolbenstange (6) verbunden ist, in beide Richtungen begrenzt wird, dass die offene Verriegelung durch die Öffnung im Ring (8) durchpasst.External lock according to claim 3, characterized in that the stroke of the plunger ( 2 ) through a sleeve ( 1 ) connected to the piston rod ( 6 ) is bounded in both directions, that the open locking through the opening in the ring ( 8th ). Externe Verriegelung nach Anspruch 4 dadurch gekennzeichnet, dass sich am freien Ende des Stössels ein Gewinde (10) oder Bolzen befindet, wo die arbeitende Kraft eingeleitet wird.External lock according to claim 4, characterized in that at the free end of the plunger thread ( 10 ) or bolt, where the working force is introduced. Externe Verriegelung nach Anspruch 5 dadurch gekennzeichnet, dass der Stössel (2) durch federnde Raster (11) in seiner Position gehalten wird.External lock according to claim 5, characterized in that the plunger ( 2 ) by resilient grid ( 11 ) is held in position. Externe Verriegelung nach Anspruch 6 dadurch gekennzeichnet, dass durch Federn (12) das Öffnen unterstützt und die Verriegelung offen gehalten wird.External lock according to claim 6, characterized in that by springs ( 12 ) the opening is supported and the lock is kept open. Externe Verriegelung nach Anspruch 7 dadurch gekennzeichnet, dass der Ring (8) mit dem Rahmen oder der Formplatte fest verbunden ist.External lock according to claim 7, characterized in that the ring ( 8th ) is firmly connected to the frame or the mold plate.
DE202010010456U 2010-07-12 2010-07-21 External locking of axially moving parts for hydraulic or pneumatic cylinders Expired - Lifetime DE202010010456U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE202010010456U DE202010010456U1 (en) 2010-07-12 2010-07-21 External locking of axially moving parts for hydraulic or pneumatic cylinders

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010026826.7 2010-07-12
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
DE202010010456U DE202010010456U1 (en) 2010-07-12 2010-07-21 External locking of axially moving parts for hydraulic or pneumatic cylinders

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DE202010010456U1 true DE202010010456U1 (en) 2011-02-10

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DE202010011199U Expired - Lifetime DE202010011199U1 (en) 2010-07-12 2010-07-12 External locking of axially moving parts for hydraulic or pneumatic cylinders
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
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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KR101620500B1 (en) * 2008-10-29 2016-05-12 보르그워너 인코퍼레이티드 Method and device for machining shafts
DE102014201047B4 (en) * 2014-01-21 2022-09-29 Volkswagen Aktiengesellschaft Casting mold for pressure casting of castings
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

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

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DE202010011199U1 (en) 2011-04-14

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