EP0575888B1 - Clamping device - Google Patents
Clamping device Download PDFInfo
- Publication number
- EP0575888B1 EP0575888B1 EP93109670A EP93109670A EP0575888B1 EP 0575888 B1 EP0575888 B1 EP 0575888B1 EP 93109670 A EP93109670 A EP 93109670A EP 93109670 A EP93109670 A EP 93109670A EP 0575888 B1 EP0575888 B1 EP 0575888B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston rod
- piston
- oval
- header
- flat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/12—Arrangements for positively actuating jaws using toggle links
- B25B5/122—Arrangements for positively actuating jaws using toggle links with fluid drive
Definitions
- the invention relates to a tensioning device, consisting of a fork-shaped head piece with a pivotally mounted tension arm, which is articulated to the piston rod via an intermediate member and a link at the end of the piston rod of an actuating cylinder which is arranged on the head piece and has a flat cross-section with the piston rod, which is known from document EP -A-0 313 947 is known.
- the articulation piece practically represents the end of the piston rod, but is detachably connected to it, by means of a so-called right-left adapter.
- This right-left adapter is screwed with its right-hand thread into the piston rod of the actuating cylinder, while the left-hand thread is screwed into the coupling piece.
- Such a connection is required for two reasons: The exact dead center position of the toggle lever is set via this right-left adapter, the upper end position of the piston in the cylinder serving as a stop.
- the object of the invention is to improve or simplify a tensioning device of the generic type in such a way that the articulation piece with the risk of piston seizure to the exclusion of piston rotation Sequence can be attached directly to the piston rod, ie, without a right-left adapter.
- the articulation piece is arranged without an intermediate piece at the end of the piston rod, the piston rod is axially fixed to the flat oval-shaped piston in the correspondingly flat oval-shaped actuating cylinder, but is rotatably connected, and a stationary or adjustable end position stop is arranged on the head piece.
- This combination according to the invention ie in particular the rotatable connection of the piston rod to the piston, eliminates any torsional loads between the piston rod and the piston, the right-left adapter previously required for setting the end position is eliminated and the entire clamping device is more compact since the space-consuming adapter is no longer required is available.
- a high level of manufacturing precision for the connection of the link piece and the piston rod end is not necessary, since the necessary alignment of the element flanks involved of the tensioning lever, intermediate link and link piece with one another can only affect the piston rod, but not the piston, when mounting the device. Equivalently, it would also be possible with the same effect to arrange the articulation piece itself rotatably on the end of the piston rod. However, since the spatial conditions on the piston are more favorable for such a rotatable connection, the rotatable connection between the inner end of the piston rod and the piston is preferred, although it is necessary to provide a seal between the piston and the piston rod.
- a stationary or adjustable end stop is arranged on the head piece. If the piston rod is equipped with side guide rollers and the head piece with guide grooves, which is the rule, these guide grooves run not open, but are kept closed, with the closing web forming the end stop.
- the piston rod is provided with a threaded pin and the articulation piece is screwed on, or the articulation piece provided with a threaded pin is screwed into a threaded hole in the piston rod.
- the piston rod is also provided with open-end flanks in the region of its end region protruding from the actuating cylinder.
- the individual elements or individual features of the overall combination namely oval cylinders, rotatable connection between oval piston and piston rod, articulation piece arranged directly at the end (without an intermediate adapter) of the piston rod are known per se, for which purpose the following documents refer to see: US-A-2 983 256, DE-A-33 35 916, DE-A-32 42 788 and EP-A-0 313 947.
- the subject matter of these documents is directed to other matters, ie, in combination Comprehensive and relevant relationships overall between the link piece, piston rod and piston and an end stop on the head piece are not addressed in these documents.
- the tensioning device consists of a head piece 1 with a tension arm 2 pivotally mounted thereon, which, via an intermediate member 3 and a link piece 4 at the end of the piston rod 5, has an actuating cylinder 6 with a flat oval cross section on the head piece 1 and the piston rod 5 is articulated.
- the head piece 1 is shown in two parts, but it can also be a one-piece, U-shaped head piece which is placed on the actuating cylinder 6 with its base web.
- the articulation piece 4 is arranged directly at the end 5 'of the piston rod 5, that the piston rod 5 is fixed axially with the flat oval piston 7 in the corresponding flat oval shaped actuating cylinder 6, but is rotatably and sealingly connected and that on Headpiece 1, a stationary or adjustable end stop 8 is arranged.
- FIG. 2 shows a seal 9 between the piston 7 and the piston rod 5.
- the piston rod 5 has a threaded pin 10 onto which the articulation piece 4 is simply screwed on.
- open-end wrench flanks 11 are arranged on the piston rod 5, which no longer has a rotational fixation, for the attachment of a wrench.
- a suitable, for example angled, locking ring 12 is provided to permanently fix the articulation piece 4 is according to fig. 2 between the articulation piece 4 and the piston rod 5, a suitable, for example angled, locking ring 12 is provided.
- the adjustment mechanism which forms the adjustment mechanism, can form during assembly, that is to say when the flanks 13 are assigned Elements do not have a torsional load on the piston 7, which of course also applies to continuous operation if, for whatever reason, torsional loads affect the piston rod 5, which can lead to piston seizures when the piston 7 and the piston rod 5 are firmly connected.
- FIG. 3 A possible embodiment in this regard is shown in FIG. 3.
- the articulation piece 4 is provided with a mushroom head pin 14, against which two small half-shells 15 rest, which are inserted together with the pin 14 into a blind hole 16 of the piston rod 7 and are fixed in the axial direction with grub screws 17.
- a screw-on version is shown in Fig. 4. In both connection designs, care must of course be taken to ensure that the rotatability between articulation piece 4 and piston rod 5 is ensured.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Sampling And Sample Adjustment (AREA)
- Physical Vapour Deposition (AREA)
- Jigs For Machine Tools (AREA)
- Gripping On Spindles (AREA)
Description
Die Erfindung betrifft eine Spannvorrichtung, bestehend aus einem gabelförmigen Kopfstück mit daran schwenkbar gelagertem Spannarm, der über ein Zwischenglied und ein Anlenkstück am Ende der Kolbenstange eines am Kopfstück angeordneten, im Querschnitt flach ovalförmigen Betätigungszylinders mit der Kolbenstange gelenkig verbunden ist, die aus dem Dokument EP-A-0 313 947 bekannt ist.The invention relates to a tensioning device, consisting of a fork-shaped head piece with a pivotally mounted tension arm, which is articulated to the piston rod via an intermediate member and a link at the end of the piston rod of an actuating cylinder which is arranged on the head piece and has a flat cross-section with the piston rod, which is known from document EP -A-0 313 947 is known.
Derartige Spannvorrichtungen sind bekannt und bedürfen insoweit keines besonderen druckschriftlichen Nachweises. Das Anlenkstück stellt dabei praktisch das Ende der Kolbenstange dar, ist aber mit dieser lösbar verbunden, und zwar mittels eines sogenannten Rechts-Links-Adapters. Dieser Rechts-Links-Adapter wird mit seinem Rechtsgewinde in die Kolbenstange des Betätigungszylinders eingeschraubt, während das Linkgsgewinde in das Anlenkstück eingeschraubt wird. Eine derartige Verbindung wird aus zwei Gründen benötigt:
Die genaue Übertotpunktstellung des Kniehebels wird über diesen Rechts-Links-Adapter eingestellt, wobei die obere Endstellung des Kolbens im Zylinder als Anschlag dient. Diese Konstruktion macht es zwar möglich, die Verbindung zwischen Kniehebel mit seiner Rollenführung in den Bahnen der beiden Kopfstückhälften und Kolben so vorzunehmen, daß der Kolben bei dieser Gelegenheit nicht verdreht wird, was wichtig ist, da ja der Kolben eine entsprechende schlanke Ovalform hat wie der Zylinderquerschnitt und insofern keine Verdrehstellung in bezug auf den Zylinder verträgt, da dies zu Kolbenfressern führen kann. Die genaue und gewonnene Einstellung muß dann allerdings durch Kontermuttern fixiert werden, was jedoch die Gefahr einer tatsächlichen Verdrehung in sich birgt. Da diese Verbindung zwischen dem Ende der Kolbenstange und dem Zwischenglied (Kniehebel) herstellungs- und montageaufwendig ist, liegt der Erfindung die Aufgabe zugrunde, eine Spannvorrichtung der gattungsgemäßen Art dahingehend zu verbessern bzw. zu vereinfachen, daß das Anlenkstück unter Ausschluß einer Kolbenverdrehung mit Kolbenfreßgefahr als Folge direkt an der Kolbenstange, d.h., ohne Rechts-Links-Adapter, befestigt werden kann.Clamping devices of this type are known and, in this respect, do not require any special printed evidence. The articulation piece practically represents the end of the piston rod, but is detachably connected to it, by means of a so-called right-left adapter. This right-left adapter is screwed with its right-hand thread into the piston rod of the actuating cylinder, while the left-hand thread is screwed into the coupling piece. Such a connection is required for two reasons:
The exact dead center position of the toggle lever is set via this right-left adapter, the upper end position of the piston in the cylinder serving as a stop. This construction makes it possible to make the connection between the toggle lever with its roller guide in the tracks of the two headpiece halves and piston so that the piston is not rotated on this occasion, which is important, since the piston has a slim oval shape like that Cylinder cross-section and therefore not tolerate a twisted position with respect to the cylinder, as this can lead to piston seizures. The exact and gained setting must then be fixed by lock nuts, which, however, harbors the risk of actual twisting. Since this connection between the end of the piston rod and the intermediate member (toggle lever) is expensive to manufacture and assemble, the object of the invention is to improve or simplify a tensioning device of the generic type in such a way that the articulation piece with the risk of piston seizure to the exclusion of piston rotation Sequence can be attached directly to the piston rod, ie, without a right-left adapter.
Diese Aufgabe ist mit einer Spannvorrichtung der eingangs genannten Art nach der Neuerung durch die Kombination folgender Merkmale gelöst:
Das Anlenkstück ist zwischenstückfrei fest am Ende der Kolbenstange angeordnet, die Kolbenstange ist mit dem flach ovalförmigen Kolben im entsprechend flach ovalförmigen Betätigungszylinder axial festgelegt, aber drehbar verbunden und am Kopfstück ist ein stationärer oder einstellbarer Endstellungsanschlag angeordnet.This object is achieved with a tensioning device of the type mentioned at the outset by combining the following features:
The articulation piece is arranged without an intermediate piece at the end of the piston rod, the piston rod is axially fixed to the flat oval-shaped piston in the correspondingly flat oval-shaped actuating cylinder, but is rotatably connected, and a stationary or adjustable end position stop is arranged on the head piece.
Durch diese erfindungsgemäße Kombination, d.h., insbesondere die drehbare Verbindung der Kolbenstange mit dem Kolben, werden jegliche Verdrehbelastungen zwischen Kolbenstange und Kolben beseitigt, der bislang zur Endstellungseinstellung benötigte Rechts-Links-Adapter entfällt und die ganze Spannvorrichtung baut kompakter, da der raumbeanspruchende Adapter nicht mehr vorhanden ist. Eine hohe Fertigungspräzision für die Verbindung von Anlenkstück und Kolbenstangenende ist nicht erforderlich, da sich die notwendige Ausrichtung der beteiligten Elementenflanken von Spannhebel, Zwischenglied und Anlenkstück zueinander bei der Montage der Vorrichtung nur auf die Kolbenstange, nicht aber auf den Kolben, auswirken kann. Äquivalent wäre es mit dem gleichen Effekt auch möglich, das Anlenkstück selbst drehbar am Kolbenstangenende anzuordnen. Da für eine solche drehbare Verbindung die räumlichen Gegebenheiten am Kolben aber günstiger sind, wird die drehbare Verbindung zwischen innerem Kolbenstangenende und Kolben bevorzugt, obgleich es dabei notwendig ist, für eine Dichtung zwische Kolben und Kolbenstange zu sorgen.This combination according to the invention, ie in particular the rotatable connection of the piston rod to the piston, eliminates any torsional loads between the piston rod and the piston, the right-left adapter previously required for setting the end position is eliminated and the entire clamping device is more compact since the space-consuming adapter is no longer required is available. A high level of manufacturing precision for the connection of the link piece and the piston rod end is not necessary, since the necessary alignment of the element flanks involved of the tensioning lever, intermediate link and link piece with one another can only affect the piston rod, but not the piston, when mounting the device. Equivalently, it would also be possible with the same effect to arrange the articulation piece itself rotatably on the end of the piston rod. However, since the spatial conditions on the piston are more favorable for such a rotatable connection, the rotatable connection between the inner end of the piston rod and the piston is preferred, although it is necessary to provide a seal between the piston and the piston rod.
Da in beiden Fällen wegen des fehlenden Einstellungsadapters bzgl. der Länge der Kolbenstange nichts mehr eingestellt werden kann, ist am Kopfstück ein stationärer oder einstellbarer Endstellungsanschlag angeordnet. Sofern die Kolbenstange mit seitlichen Führungsrollen und das Kopfstück mit Führungsnuten ausgestattet ist, was die Regel ist, laufen diese Führungsnuten nicht offen aus, sondern sind geschlossen gehalten, wobei dar Schließsteg den Endanschlag bildet.
Bezüglich der "direkten" Verbindung des Anlenkstückes mit dem freien Kolbenstangenende ist entweder die Kolbenstange mit einem Gewindezapfen versehen, und das Anlenkstück wird aufgeschraubt oder das mit einem Gewindezapfen versehene Anlenkstück wird in ein Gewindeloch der Kolbenstange eingeschraubt.
Um das Anlenkstück fest aufschrauben zu können, ist ferner die Kolbenstange im Bereich ihres aus dem Betätigungszylinder herausstehenden Endbereiches mit Maulschlüsselansatzflanken versehen.
Bezüglich der erfindungsgemäßen Lösung ist darauf hinzuweisen, daß zwar die Einzelelemente bzw. Einzelmerkmale der Gesamtkombination, nämlich Ovalzylinder, drehbare Verbindung zwischen Ovalkolben und Kolbenstange, Anlenkstück direkt am Ende (ohne Zwischenadapter) der Kolbenstange angeordnet, an sich bekannt sind, wozu auf folgende Dokumente zu verweisen ist: US-A-2 983 256, DE-A-33 35 916, DE-A-32 42 788 und EP-A-0 313 947. Die Gegenstände dieser Dokumente sind jedoch auf andere Sachverhalte gerichtet, d.h., in Kombination umfassende und einschlägige Beziehungen insgesamt zwischen Anlenkstück, Kolbenstange und Kolben und einem Endstellungsanschlag am Kopfstück sind in diesen Dokumenten jedoch nicht angesprochen.Since in both cases, due to the lack of an adjustment adapter, the length of the piston rod can no longer be adjusted, a stationary or adjustable end stop is arranged on the head piece. If the piston rod is equipped with side guide rollers and the head piece with guide grooves, which is the rule, these guide grooves run not open, but are kept closed, with the closing web forming the end stop.
With regard to the "direct" connection of the articulation piece to the free end of the piston rod, either the piston rod is provided with a threaded pin and the articulation piece is screwed on, or the articulation piece provided with a threaded pin is screwed into a threaded hole in the piston rod.
In order to be able to screw the articulation piece firmly, the piston rod is also provided with open-end flanks in the region of its end region protruding from the actuating cylinder.
With regard to the solution according to the invention, it should be pointed out that the individual elements or individual features of the overall combination, namely oval cylinders, rotatable connection between oval piston and piston rod, articulation piece arranged directly at the end (without an intermediate adapter) of the piston rod are known per se, for which purpose the following documents refer to see: US-A-2 983 256, DE-A-33 35 916, DE-A-32 42 788 and EP-A-0 313 947. However, the subject matter of these documents is directed to other matters, ie, in combination Comprehensive and relevant relationships overall between the link piece, piston rod and piston and an end stop on the head piece are not addressed in these documents.
Die erfindungsgemäße Spannvorrichtung wird nachfolgend anhand der zeichnerischen Darstellung von Ausführungsbeispielen näher erläutert.The tensioning device according to the invention is explained in more detail below with reference to the drawing of exemplary embodiments.
Es zeigt
- Fig. 1
- eine Explosionsdarstellung der ganzen Spannvorrichtung;
- Fig. 2
- einen Schnitt durch den Kolben mit der drehbar daran angeordneten Kolbenstange und
- Fig. 3, 4
- Schnitte durch das obere Ende der Kolbenstange mit darauf drehbaren Anlenkstücken.
- Fig. 1
- an exploded view of the entire jig;
- Fig. 2
- a section through the piston with the piston rod rotatably arranged thereon and
- 3, 4
- Cuts through the upper end of the piston rod with pivot pieces on it.
Wie aus Fig. 1 ersichtlich, besteht die Spannvorrichtung aus einem Kopfstück 1 mit daran schwenkbar gelagertem Spannarm 2, der über ein Zwischenglied 3 und ein Anlenkstück 4 am Ende der Kolbenstange 5 eines am Kopfstück 1 angeordneten, im Querschnitt flach ovalförmigen Betätigungszylinders 6 mit der Kolbenstange 5 gelenkig verbunden ist.As can be seen from FIG. 1, the tensioning device consists of a
Das Kopfstück 1 ist zweiteilig dargestellt, es kann sich dabei aber auch um ein einteiliges, u-förmiges Kopfstück handeln, das mit seinem Basissteg auf den Betätigungszylinder 6 aufgesetzt ist.The
Für die Spannvorrichtung ist nun wesentlich, daß das Anlenkstück 4 direkt am Ende 5' der Kolbenstange 5 angeordnet ist, daß die Kolbenstange 5 mit dem flach ovalförmigen Kolben 7 im entsprechend flach ovalförmigen Betätigungszylinder 6 axial festgelegt, aber drehbar und abgedichtet verbunden ist und daß am Kopfstuck 1 ein stationärer oder einstellbarer Endstellungsanschlag 8 angeordnet ist.For the tensioning device it is now essential that the
Bezüglich der drehbaren Verbindung zwischen unterem Kolbenstangenende und Kolben 7 wird auf Fig. 2 verwieen, die auch eine Dichtung 9 zwischen Kolben 7 und Kolbenstange 5 erkennen läßt.With regard to the rotatable connection between the lower end of the piston rod and the
Am oberen Ende 5' weist die Kolbenstange 5 einen Gewindezapfen 10 auf, auf den das Anlenkstück 4 einfach aufgeschraubt wird. Um dieses Anlenkstück 4 festspannen zu können, sind an der Kolbenstange 5, die ja keine Drehfixierung mehr hat, für den Ansatz eines Maulschlüssels, Maulschlüsselansatzflanken 11 angeordnet. Zur dauernden Fixierungssicherung des Anlenkstückes 4 ist gemäß fig. 2 zwischen Anlenkstück 4 und Kolbenstange 5 ein geeigneter, bspw. abgekröpfter Sicherungsring 12 vorgesehen.At the upper end 5 ', the
Da die Kolbenstange 5 drehbar mit dem flach ovalförmigen Kolben 7 verbunden ist, können sich beim Zusammenbau, d.h., bei der Zuordnung der Flanken 13, der die Verstellmechanik bildenden Elemente nicht verdrehbelastend auf den Kolben 7 auswirken, was natürlich auch für den Dauerbetrieb gilt, falls sich dabei, aus welchen Gründen auch immer, Verdrehbelastungen auf die Kolbenstange 5 auswirken, die bei fester Verbindung zwischen Kolben 7 und Kolbenstange 5 zu Kolbenfressern führen können.Since the
Diese "Entkopplung" des Kolbens 7 von etwa eingehenden Verdrehbelastungen ist, wie erwähnt, auch dadurch möglich, daß man es bei der üblichen festen Verbindung zwischen Kolbenstange 5 und Kolben 7 belaßt und stattdessen das Anlenkstück 4 drehbar am oberen Ende der Kolbenstange 5 anordnet. Eine diesbezügliche Ausführungsmöglichkeit ist in Fig. 3 dargestellt. Hierbei ist bspw. das Anlenkstück 4 mit einem Pilzkopfzapfen 14 versehen, an dem zwei kleine Halbschalen 15 anliegen, die zusammen mit dem Zapfen 14 in ein Sackloch 16 der Kolbenstange 7 eingeschoben und mit Madenschrauben 17 in axialer Richtung fixiert werden. Eine aufschraubbare Version ist in Fig. 4 dargestellt. Bei beiden Verbindungsausbildungen muß natürlich darauf geachtet werden, daß die Drehbarkeit zwischen Anlenkstück 4 und Kolbenstange 5 gewährleistet ist.This "decoupling" of the
Claims (2)
- A clamping arrangement, comprising a fork-type header (1) having a clamping arm (2) swivably arranged thereon which, through an intermediate member (3) and an articulated element (4), on the end of the piston rod (5) of an actuating cylinder (6) arranged on the header (1) and being of a flat and oval-type cross-section, is pivotally connected to the piston rod (5),
characterised by the combination of the following features: the articulated element (4) is rigidly arranged on the end (5') of the piston rod (5) with no intermediate element employed; the piston rod (5) is axially secured yet rotatably and sealingly connected to the flat and oval-shaped piston (7) within the conforming flat and oval-shaped actuating cylinder (6); and a stationary or adjustable end position stop (8) is arranged on the header (1). - A claming arrangement, comprising a fork-type header (1) with a clamping arm (2) swivably arranged thereon and, through an intermediate member (3) and an articulated element (4), on the end of the piston rod (5) of an actuating cylinder (6) of a flat and oval-shaped cross-section and arranged on the header (1), is pivotally connected to the piston rod (5),
characterised by the combination of the following features: the articulated element (4), on the end (5') of the piston rod (5) is axially secured yet rotatably connected to the piston rod (5); the piston rod (5) is rigidly connected to the oval-shaped piston (7) and a stationary or adjustable end position stop (8) is provided on the header (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9208306U | 1992-06-22 | ||
| DE9208306U DE9208306U1 (en) | 1992-06-22 | 1992-06-22 | Jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0575888A1 EP0575888A1 (en) | 1993-12-29 |
| EP0575888B1 true EP0575888B1 (en) | 1996-08-28 |
Family
ID=6880771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93109670A Expired - Lifetime EP0575888B1 (en) | 1992-06-22 | 1993-06-17 | Clamping device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0575888B1 (en) |
| DE (2) | DE9208306U1 (en) |
| ES (1) | ES2093885T3 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19906641A1 (en) * | 1999-02-18 | 2000-08-31 | Festo Ag & Co | Toggle lever-type clamping device has position detection device with position sensor for clamping arm |
| DE10000661A1 (en) * | 1999-02-24 | 2000-09-07 | Festo Ag & Co | Knuckle joint clamp for clamping workpieces |
| DE19903130C1 (en) * | 1999-01-27 | 2000-09-21 | Festo Ag & Co | Clamp assembly has a side opening in the head for access to the bearing body to alter the opening stroke movement easily and rapidly on a workpiece change without dismantling or disconnecting the head |
| CN106994655A (en) * | 2017-04-18 | 2017-08-01 | 成都福莫斯佰龙智能科技有限公司 | Work holder with high stability |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4099729B2 (en) * | 1997-03-05 | 2008-06-11 | Ｓｍｃ株式会社 | Cylinder device |
| FR2769255B1 (en) * | 1997-10-08 | 1999-12-03 | Genus Technologie Ind | HOLDING, POSITIONING, OR TIGHTENING DEVICE |
| DE10013874B4 (en) * | 2000-03-21 | 2013-04-18 | De-Sta-Co Metallerzeugnisse Gmbh | Toggle clamping device with opening angle limitation |
| CN204604149U (en) * | 2015-01-08 | 2015-09-02 | 盟立自动化股份有限公司 | Fixing device |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2983256A (en) * | 1958-07-15 | 1961-05-09 | Taylor Winfield Corp | Multiple piston elliptical fluid cylinder |
| FR2296494A1 (en) * | 1974-12-31 | 1976-07-30 | Carel Fouche Languepin | Pneumatic clamping arrangement for industrial purposes - has double acting cylinder for actuating a rotating clamping lever |
| FR2340798A1 (en) * | 1976-02-13 | 1977-09-09 | Polymatic Sa | IRREVERSIBLE CLAMP HEAD WITH FLOATING HITCH AND QUICK DISASSEMBLY |
| DE3022376C2 (en) * | 1980-06-14 | 1985-08-01 | De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt | Toggle clamping device for clamping workpieces |
| NZ202076A (en) * | 1982-10-04 | 1986-06-11 | Campion & Irving Ltd | Retention of first member in bore of second member using grooves and retaining rings |
| DE3242788C2 (en) * | 1982-11-19 | 1985-02-07 | Tünkers Maschinenbau GmbH, 4030 Ratingen | Pressurized toggle lever clamping device |
| DE3613852C1 (en) * | 1986-04-24 | 1987-10-01 | Tuenkers Josef Gerhard | Hydraulic-operated toggle clamp device |
| US4793602A (en) * | 1987-10-26 | 1988-12-27 | De-Sta-Co Division, Dover Resources, Inc. | Locking power clamp |
| US4854564A (en) * | 1988-08-29 | 1989-08-08 | Delaware Capital Formation, Inc. | Power clamp with track wiper |
-
1992
- 1992-06-22 DE DE9208306U patent/DE9208306U1/en not_active Expired - Lifetime
-
1993
- 1993-06-17 ES ES93109670T patent/ES2093885T3/en not_active Expired - Lifetime
- 1993-06-17 DE DE59303549T patent/DE59303549D1/en not_active Expired - Fee Related
- 1993-06-17 EP EP93109670A patent/EP0575888B1/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19903130C1 (en) * | 1999-01-27 | 2000-09-21 | Festo Ag & Co | Clamp assembly has a side opening in the head for access to the bearing body to alter the opening stroke movement easily and rapidly on a workpiece change without dismantling or disconnecting the head |
| DE19906641A1 (en) * | 1999-02-18 | 2000-08-31 | Festo Ag & Co | Toggle lever-type clamping device has position detection device with position sensor for clamping arm |
| DE19906641C2 (en) * | 1999-02-18 | 2000-11-30 | Festo Ag & Co | Jig |
| DE10000661A1 (en) * | 1999-02-24 | 2000-09-07 | Festo Ag & Co | Knuckle joint clamp for clamping workpieces |
| CN106994655A (en) * | 2017-04-18 | 2017-08-01 | 成都福莫斯佰龙智能科技有限公司 | Work holder with high stability |
Also Published As
| Publication number | Publication date |
|---|---|
| DE9208306U1 (en) | 1993-10-21 |
| DE59303549D1 (en) | 1996-10-02 |
| EP0575888A1 (en) | 1993-12-29 |
| ES2093885T3 (en) | 1997-01-01 |
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