EP0293755B1 - Clamping device - Google Patents
Clamping device Download PDFInfo
- Publication number
- EP0293755B1 EP0293755B1 EP88108386A EP88108386A EP0293755B1 EP 0293755 B1 EP0293755 B1 EP 0293755B1 EP 88108386 A EP88108386 A EP 88108386A EP 88108386 A EP88108386 A EP 88108386A EP 0293755 B1 EP0293755 B1 EP 0293755B1
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- EP
- European Patent Office
- Prior art keywords
- clamping
- holder
- clamping jaw
- jaw
- clamping device
- 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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- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
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- 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
- B25B5/16—Details, e.g. jaws, jaw attachments
- B25B5/163—Jaws or jaw attachments
-
- 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
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
-
- 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
- B25B5/16—Details, e.g. jaws, jaw attachments
Definitions
- the invention relates to a clamping device for clamping in particular sheet metal according to the preamble of the main claim.
- clamping devices of this type which are also referred to as clamping grippers, are generally known and are in use (see, for example, DE-A-23 15 945).
- a further relevant prior art is represented by the following documents: DD-A-239 562, In addition to that according to US-A-3 861 254, such clamping devices are used in particular to remove metal sheets or other parts in presses, shaping or stamping systems, but sufficient tightly tensioned to bring in and out or to promote from station to station.
- several clamping devices are appropriately spaced on a reciprocating conveyor frame, with the aid of which the sheets, gripped by the clamping devices, are stored from station to station.
- the detection of the sheets takes place between the two jaws, of which the movable and adjustable by actuating element is usually equipped with fixing tips, while the other is fixed in a suitable manner by means of holding parts for the actuating element on a support of the conveyor frame belonging to the processing station.
- the actuating elements used for such clamping devices are generally actuating cylinders, the piston rods of which are coupled at the free end in a suitable manner to the movable clamping jaw.
- the piston rod end has to perform a curve movement in such devices, it is also already known to pivotally mount the actuating element on the holder in order to be able to follow such a curve movement.
- the invention is therefore based on the object of improving a clamping device of the type mentioned in such a way that, while maintaining a compact design and stability, the entire device is fixed to its carrier as usual, but can be brought to different inclination positions as required, with the proviso that, despite the inclination of the second jaw, the first jaw, which can be pivoted by the actuating element, should be able to assume its parallel position to the second jaw in the clamping position.
- the actuatable jaw and the angle-adjustable second jaw for the workpiece are arranged on a common axis, which must be present anyway for the movable jaw.
- the angle-adjustable clamping jaw is provided in the region of its rear side flanks with two articulated brackets which are articulated on the axis, and corresponding articulated brackets are arranged on the holder for the actuating element.
- the link plates are advantageously provided on their mutually opposing flank surfaces in a known manner with latching elements, which are equipped, for example in the sense of spur toothing, with suitable profiling, so that these teeth latch against each other when tightening and a rigid connection between them the second jaw set with the desired inclination and the holder.
- spur toothing is not very strongly profiled, it may be sufficient for the release and tightening of the latching to loosen or clamp the axis designed as a clamping bolt and to slightly bend the respective tabs of the holder against each other and against the latching of the clamping jaw to be determined to brace.
- the clamping device can advantageously be designed such that in at least one of the hinge tabs of the holder an axially adjustable with respect to the axis, but fixed against rotation, with Locking elements provided clamping jaw locking ring is arranged, which will be explained in more detail.
- This design results in sufficient play for the clamping jaw locking ring after the axis has been released, which of course must be arranged in a rotationally fixed manner in the holder with the possibility of axial displacement.
- a pin lockable hole lock could optionally also be provided.
- the device can also be designed in such a way that the angularly adjustable second jaw, supported on its own axis or on a common axis by means of the other jaw, is articulated to an actuator arranged on the holder.
- the embodiment with the aforementioned latching elements is preferred, since it is easier to manufacture.
- the adjustability provided in the device according to the invention of the actuating lever normally fixedly connected to the movable jaw at a certain angle has the advantage, of course, since this adjustability can take place independently of the setting of the second jaw that the opening width of the movable jaw is variable.
- the clamping device consists of clamping jaws 2, 3 which can be moved relative to one another in the closed and open positions on a holder 1 formed by two jaws, of which the actuatable first jaw 2 with an actuator 4 of the actuating element 1 ' is coupled, which consists of an actuating cylinder in the illustrated embodiment.
- the second, clamping jaw 3 is arranged on the holder 1 at an adjustable angle and, as can be seen from FIG. 3, is designed to be fixable in different positions.
- the actuatable and the angle-adjustable jaw 2, 3 are mounted on a common axis 5 of the holder 1, wherein of course the actuatable jaw 2 is rotatably seated on this axis 5, which is provided on at least one side with at least one clamping nut 5 '.
- the angle-adjustable second jaw 3 is provided in the region of its rear side flanks 6 with two articulated brackets 7 mounted on the axis 5 and on the holder 1 for the actuating element 1 'corresponding articulated brackets 8 are arranged, or these brackets 8 are from the corresponding ends of the holder 1st formed, at the other end, as can also be seen from FIGS.
- the actuating element 1 ' is arranged pivotably at 1 ⁇ . This pivotability is necessary in view of the fact that the coupling point 12 between the end of the actuator 4 (piston rod) and the actuating lever 13 of the actuatable jaw 2 about the axis 5 describes an arc.
- FIG. 3 illustrates, wherein the holder 1 maintains its fixed position on the carrier 16.
- the locking elements 10 on the hinge plates 7 and 8 can be designed in the sense of FIGS. 4, 5, which are shown there greatly enlarged. If the depth of the profiling of the latching elements 10 can be disengaged and thus adjusted only with considerable axial play after the axis 5 has been released, the clamping jaw can be designed, for example, in the sense of FIG.
- the adjusting lever 13 of the pivotable clamping jaw 2 can advantageously be adjusted with respect to this and can be fixed to it with corresponding latching elements 10 '. If, for example, in FIG. 1, the second clamping jaw 3 is pivoted downward by 90 ° in the counterclockwise direction and is fixed, the opening angle indicated by the arrow for the pivotable clamping jaw 2 is maintained in that the clamping jaw 2 is released from its locking to the adjusting lever 13 loosens and also pivoted downwards by 90 ° and fixed again to the extension 13, which, however, maintains the position shown.
- the adjustability of the adjustable second jaw 3 is effected in a different way.
- this exemplary embodiment also makes it clear that the tabs 7 of the jaw 3 do not necessarily have to be mounted on the same axis 5 as the jaw 2, but can be mounted on a single axis 5 'or axle bolt of the holder 1, as shown is.
- the setting is effected with an actuator 14, for example in the form of a small threaded spindle, which is coupled, for example, with a spherical head configuration at one end to an extension 3 'of the second clamping jaw 3.
- the actuator 14 engages in a rotatable threaded receptacle, so that the jaw 3 can be adjusted at an angle to the holder 1 when the spindle is actuated.
- Elements for fixing the spindle in the desired position are not shown, apart from the fact that the thread to be provided can expediently be equipped with a self-locking pitch.
- the holders 1 are provided with two through bores 15 each.
- the carrier 16 consists, as can be seen better from FIG. 1A, of a stable angle piece, which is welded, for example, to the end of a sufficiently stable support arm 17, which in turn is then suitably attached to the frame or housing of a processing station with its other end (not shown) is fastened.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Clamps And Clips (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
Description
Die Erfindung betrifft eine Klemmvorrichtung zum Festklemmen von insbesondere Blechen gemäß Oberbegriff des Hauptanspruches.The invention relates to a clamping device for clamping in particular sheet metal according to the preamble of the main claim.
Derartige Klemmenvorrichtungen, die auch als Klemmgreifer bezeichnet werden, sind allgemein bekannt und in Benutzung (siehe bspw. DE-A-23 15 945). Ein weiterer einschlägiger Stand der Technik wird durch folgende Druckschriften repräsentiert: DD-A-239 562, Außer der gemäß US-A-3 861 254 dienen derartige Klemmvorrichtungen insbesondere dazu, Bleche oder sonstige Teile in Pressen, Verformungs- oder Stanzanlagen lösbar, aber ausreichend fest verspannt ein- und wieder auszubringen bzw. von Station zu Station zu fördern. Dafür sitzen in der Regel mehrere Klemmvorrichtungen entsprechend beabstandet an einem hin- und herbeweglichen Fördergestell, mit dessen Hilfe die Bleche, von den Klemmvorrichtungen erfaßt, von Station zu Station wertergelegt werden. Die Erfassung der Bleche erfolgt zwischen den beiden Klemmbacken, von denen die Bewegliche und von Betätigungselement verstellbare in der Regel mit Fixierungsspitzen ausgestattet ist, während die andere mittels halteteiles für das Betätigungselement in geeigneter Weise an einer zu Bear-beitungsstation gehörenden Auflage des Fördergestelles fixiert wird. Bei den für derartige Klemmvorrichtungen benutzten Betätigungselementen handelt es sich in der Regel um Stellzylinder, deren Kolbenstange an freien Ende in geeigneter Weise mit der beweglichen Klemmbacke gekoppelt ist. Soweit bei solchen Vorrichtungen das Kolbenstangenende eine Kurvenbewegung auszuführen hat, ist es auch bereits bekannt, das Betätigungselement am Halter schwenkbar zu lagern, um einer solchen Kurvenbewegung folgen zu können.Clamping devices of this type, which are also referred to as clamping grippers, are generally known and are in use (see, for example, DE-A-23 15 945). A further relevant prior art is represented by the following documents: DD-A-239 562, In addition to that according to US-A-3 861 254, such clamping devices are used in particular to remove metal sheets or other parts in presses, shaping or stamping systems, but sufficient tightly tensioned to bring in and out or to promote from station to station. For this purpose, as a rule, several clamping devices are appropriately spaced on a reciprocating conveyor frame, with the aid of which the sheets, gripped by the clamping devices, are stored from station to station. The detection of the sheets takes place between the two jaws, of which the movable and adjustable by actuating element is usually equipped with fixing tips, while the other is fixed in a suitable manner by means of holding parts for the actuating element on a support of the conveyor frame belonging to the processing station. The actuating elements used for such clamping devices are generally actuating cylinders, the piston rods of which are coupled at the free end in a suitable manner to the movable clamping jaw. Insofar as the piston rod end has to perform a curve movement in such devices, it is also already known to pivotally mount the actuating element on the holder in order to be able to follow such a curve movement.
Im Zuge moderner Bearbeitungsmethoden treten solche Klemmaufgaben immer häufiger auf, wobei mit den bisherigen Klemmvorrichtungen der eingangs genannten Art solchen Klemmaufgaben dann nicht ohne weiteres und nur mit Hilfsmaßnahmen genügt werden kann, wenn die Auflageebene der festen Klemmbacke mit einer anderen Neigung als der vorgesehenen justiert bzw. fixiert werden soll, d.h. für solche geneigte Anordnungen der ganzen Klemmvorrichtung war es erforderlich, entsprechend geneigt ausgebildete Zwischenelemente, Träger od. dgl. vorzusehen oder die Vorrichtung von vornherein entsprechend geneigt zu montieren, was aber häufig bspw. wegen beengter Raumverhältnisse nicht ohne weiteres möglich ist,In the course of modern machining methods, such clamping tasks occur more and more frequently, such clamping tasks with the previous clamping devices of the type mentioned at the beginning then not easily and only with auxiliary measures if the support plane of the fixed clamping jaw is to be adjusted or fixed with a different inclination than the intended one, i.e. for such inclined arrangements of the entire clamping device it was necessary to have appropriately inclined intermediate elements, supports or the like to be provided or to mount the device appropriately inclined from the outset, but this is often not readily possible, for example because of the limited space available,
Der Erfindung liegt demgemäß die Aufgabe zugrunde, eine Klemmvorrichtung der eingangs genannten Art dahingehend zu verbessern, daß unter Beibehaltung kompakter Bauweise und Stabilität die ganze Vorrichtung an ihrem Träger wie üblich fixiert, dabei aber in bedarfsangepaßt unterschiedliche Neigungsstellungen gebracht werden kann, und zwar mit der Maßgabe, daß trotz Neigungseinstellbarkeit der zweiten Klemmbacke die erste, vom Betätigungselement schwenkbare Klemmbacke in Klemmstellung ihre Parallellage zur zweiten Klemmbacke einnehmen können soll.The invention is therefore based on the object of improving a clamping device of the type mentioned in such a way that, while maintaining a compact design and stability, the entire device is fixed to its carrier as usual, but can be brought to different inclination positions as required, with the proviso that, despite the inclination of the second jaw, the first jaw, which can be pivoted by the actuating element, should be able to assume its parallel position to the second jaw in the clamping position.
Diese Aufgabe ist mit einer Klemmvorrichtung der eingangs genannten Art nach der Erfindung durch die im Kennzeichen des Hauptanspruches angeführten Merkmale gelöst. Vorteilhafte Weiterbildungen ergeben sich nach den Ünteransprüchen.This object is achieved with a clamping device of the type mentioned according to the invention by the features stated in the characterizing part of the main claim. Advantageous further developments result from the dependent claims.
Durch diese Ausbildung ist es möglich, die bisher dem Halter für das Betätigungselement fest zugeordnetezweite Klemmbacke in bezug auf den Halter in verschieden Winkelstellungen einzustellen und in der jeweils erforderlichen Lage zu fixieren, wobei die betätigbare Klemmbacke in Anpassung an die jeweilige Winkelstellung der zweiten Klemmbacke entsprechend winkelverstellt wird, was unabhängig von der einstellbaren Klemmbacke geschieht.With this design, it is possible to adjust the second jaw, which was previously assigned to the holder for the actuating element, with respect to the holder in different angular positions and to fix it in the required position, the actuatable jaw adjusting the angle corresponding to the respective angular position of the second jaw becomes what happens regardless of the adjustable jaw.
Um die Klemmvorrichtung so kompakt wie möglich zu gestalten, ist diese vorteilhaft derart ausgebildet, daß die betätigbare klemmbacke und die winkeleinstellbare zweite Klemmbacke für das Werkstück auf einer gemeinsamen Achse angeordnet sind, die sowieso für die bewegliche klemmbacke vorhanden sein muß. Die winkeleinstellbare Klemmbacke ist dafür im Bereich ihrer hinteren Seitenflanken mit zwei an der Achse angelenkten Gelenklaschen versehen, und am Halter für das Betätigungselement sind entsprechende Gelenklaschen angeordnet. Bezüglich der Fixierbarkeit der winkeleinstellbaren Klemmbacke zum Halter sind die Gelenklaschen vorteilhaft an ihren gegeneinanderliegenden Flankenflächen in bekannter Weise mit Verrastungselementen versehen, die bspw. im Sinne einer Stirnverzahnung mit geeigneter Profilierung ausgestattet sind, so daß sich diese Verzahnung beim Festspannen gegeneinander verrasten und eine starre Verbindung zwischen der mit gewünschter Neigung eingestellten zweiten Klemmbacke und dem Halter herstellen. Sofern die Stirnverzahnung nicht sehr stark profiliert ist, kann es für die Lösung und Festspannung der Verrastung ausreichen, die als Spannbolzen ausgebildete Achse zu lösen bzw. festzuspannen und beim Festspannen die betreffenden Laschen des Halters dadurch geringfügig gegeneinander zusammenzubiegen und gegen die Verrastungen der damit festzustellenden Klemmbacke zu verspannen. Bei einer stärkeren Profilierung derartiger Verrastungselemente, der durch ein Verbiegen der Laschen nicht mehr zu genügen wäre, kann die Klemmvorrichtung vorteilhaft derart ausgebildet werden, daß in mindestens einer der Gelenklaschen des Halters ein in bezug auf die Achse axial verstellbarer, aber gegen Drehung fixierter, mit Verrastungselementen versehener Klemmbackenfeststellrinp angeordnet ist, was noch näher erläutert wird. Durch diese Ausbildung ergibt sich nach Lösung der Achse ausreichend Spiel für den Klemmbackenfeststellring, der natürlich im Halter bei axialer Verschiebemöglichkeit drehfest angeordnet sein muß. Anstelle von Verrastungsstirnverzahnungen könnte ggf. ohne weiteres auch eine verstiftbare Locharretierung vorgesehen werden.In order to make the clamping device as compact as possible, it is advantageously designed such that the actuatable jaw and the angle-adjustable second jaw for the workpiece are arranged on a common axis, which must be present anyway for the movable jaw. For this purpose, the angle-adjustable clamping jaw is provided in the region of its rear side flanks with two articulated brackets which are articulated on the axis, and corresponding articulated brackets are arranged on the holder for the actuating element. With regard to the fixability of the angle-adjustable clamping jaw to the holder, the link plates are advantageously provided on their mutually opposing flank surfaces in a known manner with latching elements, which are equipped, for example in the sense of spur toothing, with suitable profiling, so that these teeth latch against each other when tightening and a rigid connection between them the second jaw set with the desired inclination and the holder. If the spur toothing is not very strongly profiled, it may be sufficient for the release and tightening of the latching to loosen or clamp the axis designed as a clamping bolt and to slightly bend the respective tabs of the holder against each other and against the latching of the clamping jaw to be determined to brace. With a stronger profile of such locking elements, which would no longer be sufficient by bending the tabs, the clamping device can advantageously be designed such that in at least one of the hinge tabs of the holder an axially adjustable with respect to the axis, but fixed against rotation, with Locking elements provided clamping jaw locking ring is arranged, which will be explained in more detail. This design results in sufficient play for the clamping jaw locking ring after the axis has been released, which of course must be arranged in a rotationally fixed manner in the holder with the possibility of axial displacement. Instead of locking spur gear teeth, a pin lockable hole lock could optionally also be provided.
Bezüglich der Winkeleinstellbarkeit der nicht betätigbären zweiten Klemmbacke kann die Vorrichtung auch derart auspebildet sein, daß die winkeleinstellbare zweite Klemmbacke, an einer eigenen oder einer gemeinsamen Achse mitt der anderen Backe gelagert, mit einem am Halter angeordneten Stellglied gelenkig verbunden ist. Auch dies wird noch näher erläutert. Bevorzugt wird jedoch die Ausführungsform mit den vorerwähnten Verrastunpselementen, da diese einfacher herzustellen ist.With regard to the angular adjustability of the non-actuatable second jaw, the device can also be designed in such a way that the angularly adjustable second jaw, supported on its own axis or on a common axis by means of the other jaw, is articulated to an actuator arranged on the holder. This is also explained in more detail. However, the embodiment with the aforementioned latching elements is preferred, since it is easier to manufacture.
Die bei der erfindungsgemäßen Vorrichtung vorgesehene Einstellbarkeit des normalerweise fest mit der beweglichen Klemmbacke unter einem bestimmten Winkel verbundenen Stellhebels hat natürlich den Vorteil, da diese Einstellbarkeit unabhängig von der Einstellung der zweiten Klemmbacke erfolgen kann, daß die Öffnungsweite der beweglichen Klemmbacke variabel ist.The adjustability provided in the device according to the invention of the actuating lever normally fixedly connected to the movable jaw at a certain angle has the advantage, of course, since this adjustability can take place independently of the setting of the second jaw that the opening width of the movable jaw is variable.
Die erfindungsgemäße Klemmvorrichtung wird nachgolgend anhand der zeichnerischen Darstellung von Ausführungsbeispielen näher erläutert.The clamping device according to the invention is explained in more detail below with reference to the drawing of exemplary embodiments.
Es zeigt schematisch
- Fig. 1 die neuartige Klemmvorrichtung in Seitenansicht;
- Fig. 1A die Klemmvorrichtung gemäß Fig. 1 in Pfeilrichtung A peseten;
- Fig. 2 die Klemmvorrichtung gemäß Fig. 1 in Draufsicht;
- Fig. 3 die Klemmvorrichtung in Seitenansicht mit verschiedenen Neigungsstellungen der Klemmbacken;
- Fig. 4, 5 in Seitenansicht und perspektivisch mögliche Ausführungsformen von Verrastungselementen;
- Fig. 6 im Schnitt eine besondere Ausführungsform der Verrastungselemente und
- Fig. 7 in Seitenansicht und stark schematisiert eine andere Ausführungsforrn der Klemmvorrichtung.
- Figure 1 shows the novel clamping device in side view.
- 1A peseten the clamping device according to Figure 1 in the direction of arrow A;
- FIG. 2 shows the clamping device according to FIG. 1 in plan view;
- 3 shows the clamping device in a side view with different inclination positions of the clamping jaws;
- 4, 5 in side view and perspective possible embodiments of locking elements;
- Fig. 6 in section a special embodiment of the locking elements and
- Fig. 7 in side view and highly schematic, another embodiment of the clamping device.
Wie aus den Fig. 1 bis 3 ersichtlich, besteht die Klemmvorrichtung aus an einem aus zwei Backen gebildeten Halten 1 relativ zueinander in Schließ- und Öffnungsstellung bewegbaren Klemmbacken 2, 3, von denen die betätigbare erste Klemmbacke 2 mit einem Betätigungsglied 4 des Betätigunpselementes 1′ gekoppelt ist, das im dargestellten Ausführungsbeispiel aus einem Stellzylinder besteht. Die zweite, Klemmbacke 3 ist am Halter 1 winkeleinstellbar angeordnet und, wie aus Fig. 3 ersictlich, in unterschiedlichen Stellungen fixierbar ausgebildet. Zweckmäßig sind dabei die betätigbare und die winkeleinstellbare Klemmbacke 2, 3 auf einer gemeinsamen Achse 5 des Halters 1 gelagert, wobei natürlich die betätigbare Klemmbacke 2 drehbar auf dieser Achse 5 sitzt, die auf mindestens einer Seite mit mindestens einer Spannmutter 5′ versehen ist. Die winkeleinstellbare zweite Klemmbacke 3 ist im Bereich ihrer hinteren Seitenflanken 6 mit zwei auf der Achse 5 gelagerten Gelenklaschen 7 versehen und am Halter 1 für das Betätigungselement 1′ sind entsprechende Gelenklaschen 8 angeordnet, bzw. diese Laschen 8 werden von den entsprechenden Enden des Halters 1 gebildet, an dessen anderen Ende, wie ebenfalls aus den Fig. 1 bis 3 ersichtlich, das Betätigungselement 1′ bei 1˝ schwenkbar angeordnet ist. Diese Schwenkbarkeit ist in Rücksicht darauf erforderlich, daß der Koppelungspunkt 12 zwischen dem Ende des Betätigungsgliedes 4 (Kolbenstange) und dem Stellhebel 13 der betätigbaren Klemmbacke 2 um die Achse 5 einen Kreisbogen beschreibt.As can be seen from FIGS. 1 to 3, the clamping device consists of
Je nach konstruktiver Gestaltung, insbesondere aber orientiert am Ausführungsbeispiel nach Fig. 1, sind mit einer solchen Vorrichtung verschiedene Einstellungen der einstellbaren zweiten Klemmbacke 3 möglich, wie strichpunktiert in Fig. 3 verdeutlicht, wobei der Halter 1 seine fixierte Stellung am Träger 16 aber beibehält. Die Verrastungselemente 10 an den Gelenklaschen 7 bzw. 8 können im Sinne der Fig. 4, 5 ausgebildet sein, die dort stark vergrößert dargestellt sind. Falls die Tiefe der Profilierung der Verrastungselemente 10 eine Ausrastung und damit eine Verstellung nur mit beträchtlichem axialem Spiel nach Lösung der Achse 5 zu bewerkstelligen sind, kann die Klemmbacke bspw. im Sinne der Fig. 6 ausgebildet werden, d.h. derart, daß in mindestens einer der Gelenklaschen 8 des Halters 1 ein in bezug auf die Achse 5 axial verstellbarer, aber gegen Drehunh fixierter, mit Verrastungselementen 10 von den entgegengesetzt gerichteten verrastungselementen an den Laschen 7 der einstellbaren Klemmbacke 3 gelöst werden können. Nach gewünschter Winkeleinstellung wird dann die Achse 5 mit der Stellmutter 5′ einfach wieder festgespannt, wodurch die Verrastungselemente 10 wieder zur Anlage kommen.Depending on the structural design, but in particular based on the exemplary embodiment according to FIG. 1, various settings of the adjustable
Wie aus Fig. 2 ersichtlich, ist vorteilhaft auch der Stellhebel 13 der schwenkbaren Klemmbacke 2 in bezug auf diese einstllbar und mit entsprechenden Verrastungselementen 10′ zu dieser fixierbar. Wenn also bspw. orientiert an Fig. 1 die zweite Klemmbacke 3 im Gegenuhrzeigersinn um 90° nach unten verschwenkt und Fixiert wird, wird der mit Pfeil angedeutete Öffnungswinkel für die schwenkbare Klemmbacke 2 dadurch beibehalten, daß man die Klemmbacke 2 aus ihrer Verrastung zum Stellhebel 13 löst und ebenfalls um 90° nach unten verschwenkt und wieder zum Fortsatz 13 fixiert, der aber dabei seine dargestellte Stellung beibehält.As can be seen from FIG. 2, the adjusting
Beim Ausführungsbeispiel nach Fig.7 wird die einstellbarkeit der einstellbaren zweiten Klemmbacke 3 auf andere Weise bewirkt. Abgesehen davon, macht dieses ausführungsbeispeil auch deutlich, daß die Laschen 7 der Klemmbacke 3 nicht zwingend auf der gleichen Achse 5 wie die Klemmbacke 2 gelagert sein müssen, sondern auf einer eingenen Achse 5˝ oder Achsbolzen des Halters 1 gelagert sein können, wie dies dargestellt ist. Unabhängig davon wird hierbei die Einstellung mit einem Stellglied 14, bspw. in Form einer kleinen Gewindespindel bewirkt, die bspw. mit einer Kugelkopfausbildung an einem Ende mit einem Fortsatz 3′ der zweiten Klemmbacke 3 gekoppelt ist. Mit seinem anderen Ende greift das Stellglied 14 in eine drehbare Gewindeaufnahme ein, so daß bei Betätigung der Spindel die Klemmbacke 3 winklig zum Halter 1 verstellt werden kann. Elemente zur Fixierung der Spindel in gewünschter Stellung sind nicht dargestellt, abgesehen davon, daß das vorzusehende Gewinde zweckmäßig mit selbsthemmender Steigung ausgestattet sein kann.In the embodiment of Figure 7, the adjustability of the adjustable
Um die Vorrichtung an einem Träger 16, wie üblich, fixieren zu können, sind deren Halter 1 mit je zwei Durchgangsbohrungen 15 versehen. Der Träger 16 besteht dabei, wie besser aus Fig. 1A ersichtlich, aus einem stabilen Winkelstück, das bspw. am Ende eines ausreichend stabilen Tragarmes 17 angeschweißt ist, der dann seinerseits mit seinem anderen Ende in geeigneter Weise am Festell oder Gehäuse einer Bearbeitungsstation (nicht dargestellt) befestift wird.In order to be able to fix the device to a
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88108386T ATE63250T1 (en) | 1987-05-30 | 1988-05-26 | CLAMPING DEVICE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8707773U DE8707773U1 (en) | 1987-05-30 | 1987-05-30 | Clamping device |
| DE8707773U | 1987-05-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0293755A2 EP0293755A2 (en) | 1988-12-07 |
| EP0293755A3 EP0293755A3 (en) | 1989-03-22 |
| EP0293755B1 true EP0293755B1 (en) | 1991-05-08 |
Family
ID=6808687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88108386A Expired - Lifetime EP0293755B1 (en) | 1987-05-30 | 1988-05-26 | Clamping device |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0293755B1 (en) |
| AT (1) | ATE63250T1 (en) |
| DE (2) | DE8707773U1 (en) |
| ES (1) | ES2022529B3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5171001A (en) * | 1987-05-27 | 1992-12-15 | Btm Corporation | Sealed power clamp |
| DE4236670A1 (en) * | 1992-10-30 | 1994-05-05 | Sta Co Mettallerzeugnisse Gmbh | Clamping device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3147004A (en) * | 1959-02-02 | 1964-09-01 | Leland F Blatt | Work securing clamp |
| US3545050A (en) * | 1969-01-30 | 1970-12-08 | I S I Mfg Inc | Power clamp with pull-back action |
| DD96915A1 (en) * | 1972-04-12 | 1973-04-12 | ||
| DE2222686B2 (en) * | 1972-05-09 | 1980-06-12 | Tuenkers Maschinenbau Gmbh, 4030 Ratingen | Pressure medium-operated toggle lever clamping device, in particular for body parts |
| US3861254A (en) * | 1974-03-04 | 1975-01-21 | Judelshon Industries | Self-loading roll slitter |
| DE7806055U1 (en) * | 1978-03-01 | 1978-06-15 | De-Sta-Co Metallerzeugnisse Gmbh, 6000 Frankfurt | Toggle joint clamps |
| US4405120A (en) * | 1981-06-05 | 1983-09-20 | O.K. Machine And Tool Corporation | Printed circuit board holder |
| DE3513906C2 (en) * | 1985-04-17 | 1987-04-16 | Carlheinz 8484 Grafenwöhr Geuss | Clamping device for holding large flat panels |
| DD239562A1 (en) * | 1985-07-25 | 1986-10-01 | Komb Veb Elektro Apparate Werk | LEVER TENSIONING DEVICE FOR SINGLE-SIDED LOANING OF FLAT WORKPIECES |
| DE3705269A1 (en) * | 1986-02-20 | 1987-08-27 | Carver & Co Eng | Adjustable clamping device and accessories thereof |
-
1987
- 1987-05-30 DE DE8707773U patent/DE8707773U1/en not_active Expired
-
1988
- 1988-05-26 AT AT88108386T patent/ATE63250T1/en not_active IP Right Cessation
- 1988-05-26 DE DE8888108386T patent/DE3862683D1/en not_active Expired - Lifetime
- 1988-05-26 EP EP88108386A patent/EP0293755B1/en not_active Expired - Lifetime
- 1988-05-26 ES ES88108386T patent/ES2022529B3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ES2022529B3 (en) | 1991-12-01 |
| DE8707773U1 (en) | 1988-10-06 |
| DE3862683D1 (en) | 1991-06-13 |
| EP0293755A3 (en) | 1989-03-22 |
| EP0293755A2 (en) | 1988-12-07 |
| ATE63250T1 (en) | 1991-05-15 |
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