EP2998068A1 - Center tensioner with fast change jaws - Google Patents
Center tensioner with fast change jaws Download PDFInfo
- Publication number
- EP2998068A1 EP2998068A1 EP15175930.5A EP15175930A EP2998068A1 EP 2998068 A1 EP2998068 A1 EP 2998068A1 EP 15175930 A EP15175930 A EP 15175930A EP 2998068 A1 EP2998068 A1 EP 2998068A1
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- EP
- European Patent Office
- Prior art keywords
- quick
- jaws
- change jaws
- change
- center tensioner
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- 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.)
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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
- B25B1/00—Vices
- B25B1/06—Arrangements for positively actuating jaws
- B25B1/10—Arrangements for positively actuating jaws using screws
- B25B1/12—Arrangements for positively actuating jaws using screws with provision for disengagement
- B25B1/125—Arrangements for positively actuating jaws using screws with provision for disengagement with one screw perpendicular to the jaw faces
-
- 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
- B25B1/00—Vices
- B25B1/24—Details, e.g. jaws of special shape, slideways
- B25B1/2405—Construction of the jaws
-
- 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
- B25B1/00—Vices
- B25B1/24—Details, e.g. jaws of special shape, slideways
- B25B1/2489—Slideways
Definitions
- the present invention relates to a center tensioner with quick change jaws.
- machine vices In order to hold workpieces safely and precisely and to be able to machine, for example, in machine tools, machining centers, 5-axis milling or drilling machines, machine vices are usually used, which can also have a power transmission. These machine vices also include centering or centering vise, in which two clamping jaws are guided by means of a spindle in a common base body and are centrally movable toward or away from each other. To be able to adapt such a center tensioner quickly to different sized workpieces, his jaws are often interchangeable, in particular rotatable.
- the DE 10 2010 047 380 B3 a linear mechanical quick release lock for locking and unlocking compatible clamping devices, where the jaw consists of a base and a top.
- the lower part has at least two, on a plane in one axis, transversely to the clamping direction, successively and sublime molded locking elements in dovetail shape, which serve for connection to the upper part.
- This has on a side facing the lower part of two correspondingly shaped and arranged recesses, which are either open end on a front side of the upper part or ending in a locking element larger insertion opening, so that the upper part placed flat on the lower part and by linear displacement locking means and recess in Intervention can be brought together.
- a releasing displacement is prevented by a blocking means pivotable in front of the upper part.
- a clamping jaw upper part (interchangeable insert) on a clamping jaw lower part (carrier jaw), which is lockably guided pivotably on the clamping jaw lower part, and which can be removed upwardly out of the carrier jaw.
- the exchange insert on its side facing the support jaw two lugs which engage in corresponding recesses of the support jaw and on which the pivot axis is formed by a pressure pin passing through them.
- the present invention therefore has the task of specifying a structurally simple and pollution-prone quick change clamping jaws.
- a center tensioner having a base body, two quick change jaws arranged thereon and an adjusting device arranged on the base body and acting on the quick change jaws, characterized in that the base body has a top side facing the quick change jaw cross-section larger area than on its opposite this underside and has each quick change jaws wraparound for this area.
- a one-piece clamping jaws can be given with great advantage, eliminating the susceptibility to fouling two- or multi-part jaws, as well as the construction is simplified.
- Umgriff and corresponding Umgreif Scheme represent a secure connection that is free from tilting moments of any kind.
- wrapper and quick change jaws are integrally formed, alternatively hinged together.
- the first variant is preferred because it can be dispensed with a joint and its protection against unwanted opening.
- the region is formed as two opposing and mutually pioneering webs, wherein the webs are extending in the longitudinal direction of the center tensioner.
- These webs are inventively formed on the side walls of the body, spaced or not to the top.
- the webs may be continuous or longitudinally formed single or multiple interrupted. According to the invention, its cross-sectional area is approximately square or rectangular or polygonal or rounded, preferably a substantially square cross-sectional area with a radius in the transition of the sides.
- the webs may be formed according to the invention in particular hardened, preferably they are made of the same material as the body.
- the enclosures of the quick-change jaws are frontally open, so that the quick-change jaws in the longitudinal direction of the center tensioner on These are pushed or removed from this, with great advantage extremely easy handling of the device ensures:
- the quick change jaws can be easily withdrawn or pushed by an operator to the rear, or front of the body. This allows the operator to replace one quick-change jaw with another with a handle in just a few seconds and quickly restore the operational capability of the center tensioner.
- Another advantage is the embodiment of the invention, according to which the base body between the two quick-change jaws to their largest spacing from each other has a closed surface.
- the tensioner according to the invention is particularly long without cleaning used.
- the webs are formed with their top side in alignment with the surface of the base body.
- the quick-change jaws are designed to be lockable, in particular a releasable locking device for direct or indirect locking is provided on the adjusting device.
- a locking device ensures the operability of the device by allowing it to safely initiate the clamping forces on the jaws in the body.
- the locking device is formed by a lateral through hole in the quick-change jaws, a passing through this pin with manipulation means and engaging end and an engagement end on the adjusting device, wherein engagement and engagement end are positively and / or non-positively engaging with each other.
- Fig. 1 shows a perspective view of an embodiment of the invention Zentrierspanners 1 with main body 2 and two quick-change jaws 3.
- the main body 2 is received in a plate 17, as required for automated workpiece change in series production.
- the base body 2 shows on its visible front side a cover plate 18, interspersed by a drive connection 19 for the invisible, inside the body protected adjustment device arranged 4.
- the quick change jaws 3 have in this embodiment, a two-stage surface with a first workpiece support surface 20 and one of these superior Stop 21 on.
- Fig. 1 shows a perspective view of an embodiment of the invention Zentrierspanners 1 with main body 2 and two quick-change jaws 3.
- the main body 2 is received in a plate 17, as required for automated workpiece change in series production.
- the base body 2 shows on its
- quick change jaws 3 is visible from the outside visible part of the locking device 11.
- These manipulation means 14 are formed at one end of a pin 13, which passes through the quick-change jaws 3 to the adjusting device.
- the quick-change jaws 3 can be easily removed from the main body in the longitudinal direction of the device, or defer, as soon as the locking device has been solved. Thereafter, an exchange can be made against differently shaped quick-change jaws. According to the invention, the original quick-change jaws 3 rotated by 180 ° can be postponed again, so that there are different clamping options with the same quick-change jaws.
- Fig. 2 shows a cross section along the line AA Fig. 1 , so that the locking device 11 is clearly visible, which consists of several parts.
- the main body 2 has two webs pointing away from each other 9, which are integrally formed on the upper side 5 and integrally formed with the base body 2. Their cross-sectional area is approximately square or slightly rectangular, namely higher than wide. These webs 9 are each encompassed by a wrap-around 8 of the quick-change jaw 3.
- the edges of the webs 9 in this case have either a radius 22 or a chamfer 22, each of which in particular facilitate the removal and postponement of the quick-change jaws 3 on the base body 2, but also improve their gliding.
- Webs 9 and body 2 are made in one piece from the same material.
- the adjusting device 4 is arranged protected from environmental influences.
- the adjusting device 4 is in Fig. 3 shown clearly, at her the quick-change jaws 3 are locked.
- the locking device 11 used for this purpose has a through hole 12 which passes through the quick-change jaws 3 laterally to its center region.
- a pin 13 is guided sealed, which has a manipulation means 14 at one end, here a hexagon socket. Its opposite second end is formed as an engagement 15, here as a cone.
- Pin 13 and through hole 12 have corresponding threads.
- the engaging end 15 engages upon rotation of the pin 13 in an engaging end 16, which is designed here as a tapered bore in a locking block 25.
- the locking block 25 is clamped in this embodiment by means of a spring, not shown, against the quick change jaws 3 and thus leads to its operative connection with the spindle 23 of the adjusting device 4. From the illustrated working position of the center tensioner 1, the jaw change is made possible by the fact that the pin 13 is screwed , so that its engaging 15 passes deeper into the tapered bore of the engagement end 16 and thereby lifts the locking block 25 up against the spring force of the adjusting device 4. Once the locking block 25 is disengaged, that is sufficiently raised, the quick-change jaws 3 is removable from the body, together with the locking block secured to it 25.
- the manipulating means 14 would be troughs formed in accordance with an operator's finger or the like.
- the pressing would take place against a counterforce, for example a spring.
- Fig. 3 shows a longitudinal section along the line BB Fig. 1 and thus the internal structure of the adjusting device 4. This is taken up lengthwise in the base body 2 and closed at their end faces to the outside in each case by a cover plate 18.
- the spindle 23 acts via corresponding threads on a carriage 24 which has grooves 26 on its upper side into which a web 27 of the locking block 25 is engaged.
- the Quick change jaws 3 by rotation of the spindle 23 moves relative to each other.
- the locking block 25 can be raised by means of the pin 13 until its web 27 comes out of engagement with the groove 26.
- the quick-change jaws 3 have a correspondingly large recess in its interior.
- the quick change jaws 3 can then either be withdrawn and exchanged for another or be moved to engage in one of the other grooves 26, so that can be easily adjusted in stages with the centering clamp achievable maximum clamping spans. Shown here are three stages (three grooves), but according to the invention, fewer or more stages may be provided.
- the area between the quick-change jaws 3 is formed by a closed surface 10, which closes the interior of the clamping device to the outside and thus enables a high susceptibility to contamination. Even in the illustrated maximum span of the device, the surface is closed. Since the locking device 11 is arranged inside, the penetration of dust, dirt or coolant lubricants is virtually eliminated, the device is very safe.
- Fig. 4 shows an inventive alternative to the described combination of pin 13 with taper and conical bore in the locking block 25. Shown is a pin 13 with an engagement end 15 which is formed in the manner of a worm gear. In this case, it would be possible to dispense with a spring force, provided that it is ensured that the pin 13 can not come loose unintentionally. Quite generally, according to the invention, any assembly can be used that enables axial-radial displacement conversion and whose final states can be locked. For better clarity contains Fig. 4 two rotational states of the Pin 13, namely a raised and a lowered state of the locking block 25th
- the invention allows with great advantage a rapid adjustment of the span of the Zentrierspanners with only one hand, namely, for example, only a quarter turn on the pin 13 with the one and the position changing the so dissolved quick-change jaw 3 with the other hand in a few seconds.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
Die vorliegende Erfindung betrifft einen Zentrumsspanner (1), aufweisend einen Grundkörper (2), zwei daran angeordnete Schnellwechselbacken (3) und einer am Grundkörper angeordneten und auf die Schnellwechselbacken (3) wirkenden Verstellvorrichtung (4), dadurch gekennzeichnet, dass der Grundkörper (2) an seiner, den Schnellwechselbacken (3) zugewandten Oberseite (5) einen querschnittsgrößeren Bereich (6) als auf seiner dieser gegenüberliegenden Unterseite (7) aufweist und das jeder Schnellwechselbacken (3) einen Umgriff (8) für diesen Bereich (6) aufweist.The present invention relates to a center tensioner (1), comprising a base body (2), two quick change jaws (3) arranged thereon and an adjusting device (4) arranged on the base body and acting on the quick change jaws (3), characterized in that the base body (2 ) at its, the quick change jaws (3) facing the upper side (5) has a larger cross-sectional area (6) than on its opposite this underside (7) and each quick change jaws (3) has a wrap (8) for this area (6).
Description
Die vorliegende Erfindung betrifft einen Zentrumsspanner mit Schnellwechselbacken.The present invention relates to a center tensioner with quick change jaws.
Um Werkstücke sicher und präzise zu haltern und beispielsweise in Werkzeugmaschinen, Bearbeitungszentren, 5-Achs-Fräs- oder Bohrmaschinen bearbeiten zu können, werden üblicherweise Maschinenschraubstöcke eingesetzt, die auch eine Kraftübersetzung aufweisen können. Zu diesen Maschinenschraubstöcken gehören auch Zentrier- oder Zentrumsspanner, bei denen zwei Spannbacken mittels einer Spindel in einem gemeinsamen Grundkörper geführt sind und zentrisch aufeinander zu oder weg bewegbar sind. Um einen solchen Zentrumsspanner schnell an unterschiedlich große Werkstücke anpassen zu können, sind seine Spannbacken oftmals wechselbar, insbesondere drehbar ausgebildet.In order to hold workpieces safely and precisely and to be able to machine, for example, in machine tools, machining centers, 5-axis milling or drilling machines, machine vices are usually used, which can also have a power transmission. These machine vices also include centering or centering vise, in which two clamping jaws are guided by means of a spindle in a common base body and are centrally movable toward or away from each other. To be able to adapt such a center tensioner quickly to different sized workpieces, his jaws are often interchangeable, in particular rotatable.
Beispielsweise offenbart die
Weiter ist bekannt, ein längerbauendes Spannbackenunterteil an seiner Oberseite mit einer Mehrzahl zueinander paralleler und quer zur Bewegungsrichtung des Spannbackens verlaufender (Schwalbenschwanz)Nuten zu versehen und an der Unterseite eines kürzerbauenden Spannbackenoberteils korrespondierend geformte Stege vorzusehen, so dass die Spannbackenoberteile durch eine lineare Bewegung seitlich in die Nuten einschiebbar und dort mittels einer seitlich zugänglichen Inbusschraube arretierbar sind. Nachteilig hieran ist insbesondere die Spananfälligkeit der nicht belegten Nuten, die daher aufwendig vor Beschädigung geschützt werden müssen.It is also known to provide a longer-lasting jaw lower part at its upper side with a plurality of mutually parallel and transversely to the direction of movement of the clamping jaw extending (dovetail) grooves and provided on the underside of a shorter jaw upper part correspondingly shaped webs, so that the jaw tops by a linear movement laterally in the grooves can be inserted and locked there by means of a laterally accessible Allen screw. A disadvantage of this is in particular the susceptibility to chip of the unoccupied grooves, which therefore must be laboriously protected against damage.
Weiter ist bekannt, auf einem Spannbackenunterteil (Trägerbacke) einen Spannbackenoberteil (Wechseleinsatz) vorzusehen, der an dem Spannbackenunterteil verriegelbar verschwenkbar geführt ist, und der nach oben aus der Trägerbacke entnehmbar ist. Hierzu weist der Wechseleinsatz an seiner der Trägerbacke zugewandten Seite zwei Nasen auf, die in entsprechende Ausnehmungen der Trägerbacke eingreifen und an denen die Schwenkachse durch einen diese durchsetzenden Druckbolzen gebildet ist.It is also known to provide a clamping jaw upper part (interchangeable insert) on a clamping jaw lower part (carrier jaw), which is lockably guided pivotably on the clamping jaw lower part, and which can be removed upwardly out of the carrier jaw. For this purpose, the exchange insert on its side facing the support jaw two lugs which engage in corresponding recesses of the support jaw and on which the pivot axis is formed by a pressure pin passing through them.
Nachteilig an diesen bekannten Lösungen ist, dass sie einen eher komplizierten Aufbau der Spannbacken erfordern.A disadvantage of these known solutions is that they require a rather complicated construction of the clamping jaws.
Die vorliegende Erfindung stellt sich daher die Aufgabe, einen konstruktiv einfachen und verschmutzungsunanfälligen Schnellwechselspannbacken anzugeben.The present invention therefore has the task of specifying a structurally simple and pollution-prone quick change clamping jaws.
Diese Aufgabe wird bei einem Zentrumsspanner, aufweisend einen Grundkörper, zwei daran angeordnete Schnellwechselbacken und einer am Grundkörper angeordneten und auf die Schnellwechselbacken wirkenden Verstellvorrichtung, dadurch gelöst, dass der Grundkörper an seiner, den Schnellwechselbacken zugewandten Oberseite einen querschnittsgrößeren Bereich als auf seiner dieser gegenüberliegenden Unterseite aufweist und das jeder Schnellwechselbacken einen Umgriff für diesen Bereich aufweist. Im Gegensatz zu den bekannten technischen Lösungen kann mit großem Vorteil ein einteiliger Spannbacken angeben werden, die Verschmutzungsanfälligkeit zwei- oder mehrteiliger Spannbacken entfällt, ebenso ist die Konstruktion vereinfacht. Umgriff und korrespondierender Umgreifbereich stellen eine sichere Verbindung dar, die frei von Kippmomenten jeglicher Art ist.This object is achieved with a center tensioner having a base body, two quick change jaws arranged thereon and an adjusting device arranged on the base body and acting on the quick change jaws, characterized in that the base body has a top side facing the quick change jaw cross-section larger area than on its opposite this underside and has each quick change jaws wraparound for this area. In contrast to the known technical solutions, a one-piece clamping jaws can be given with great advantage, eliminating the susceptibility to fouling two- or multi-part jaws, as well as the construction is simplified. Umgriff and corresponding Umgreifbereich represent a secure connection that is free from tilting moments of any kind.
Erfindungsgemäß sind Umgriff und Schnellwechselbacken einstückig ausgebildet, alternativ gelenkig miteinander verbunden. Hierbei wird die erste Variante bevorzugt, da auf ein Gelenk und dessen Sicherung gegen ungewollte Öffnung verzichtet werden kann.According wrapper and quick change jaws are integrally formed, alternatively hinged together. Here, the first variant is preferred because it can be dispensed with a joint and its protection against unwanted opening.
In Ausgestaltung der Erfindung ist vorgesehen, dass der Bereich als zwei einander gegenüberliegende und voneinander wegweisende Stege ausgebildet ist, wobei sich die Stege in Längsrichtung des Zentrumsspanners erstreckend sind. Diese Stege sind erfindungsgemäß an den Seitenwänden des Grundkörpers angeformt, beabstandet oder nicht zu dessen Oberseite. Die Stege können durchgehend oder in Längsrichtung einfach oder mehrfach unterbrochen ausgebildet sein. Ihre Querschnittsfläche ist erfindungsgemäß in etwa quadratisch oder rechteckig oder polygon oder gerundet ausgebildet sein, bevorzugt ist eine im wesentliche quadratische Querschnittsfläche mit Radius im Übergang der Seiten. Die Stege können erfindungsgemäß insbesondere gehärtet ausgebildet sein, vorzugsweise bestehen sie aus demselben Material wie der Grundkörper.In an embodiment of the invention it is provided that the region is formed as two opposing and mutually pioneering webs, wherein the webs are extending in the longitudinal direction of the center tensioner. These webs are inventively formed on the side walls of the body, spaced or not to the top. The webs may be continuous or longitudinally formed single or multiple interrupted. According to the invention, its cross-sectional area is approximately square or rectangular or polygonal or rounded, preferably a substantially square cross-sectional area with a radius in the transition of the sides. The webs may be formed according to the invention in particular hardened, preferably they are made of the same material as the body.
Durch die erfindungsgemäße Maßnahme, dass die Umgriffe der Schnellwechselbacken stirnseitig offen ausgebildet sind, so dass die Schnellwechselbacken in Längsrichtung des Zentrumsspanners auf diesen aufschiebbar oder von diesem entfernbar sind, wird mit großem Vorteil eine extrem einfache Handhabbarkeit der Vorrichtung gewährleistet: Die Schnellwechselbacken können von einem Bediener einfach nach hinten, bzw. vorne vom Grundkörper abgezogen oder aufgeschoben werden. Hierdurch kann der Bediener mit einem Griff in wenigen Sekunden einen Schnellwechselbacken gegen einen anderen austauschen und die Einsatzfähigkeit des Zentrumsspanners schnellstens wieder herstellen.By the measure according to the invention that the enclosures of the quick-change jaws are frontally open, so that the quick-change jaws in the longitudinal direction of the center tensioner on These are pushed or removed from this, with great advantage extremely easy handling of the device ensures: The quick change jaws can be easily withdrawn or pushed by an operator to the rear, or front of the body. This allows the operator to replace one quick-change jaw with another with a handle in just a few seconds and quickly restore the operational capability of the center tensioner.
Von Vorteil ist ebenfalls die erfindungsgemäße Ausgestaltung, wonach der Grundkörper zwischen den beiden Schnellwechselbacken bis zu deren größter Beabstandung zueinander eine geschlossene Oberfläche aufweist. So wird das Eindringen von Spänen, Staub oder Kühl/Schmiermittel in den Bereich der Verstellvorrichtung verhindert, der erfindungsgemäße Spanner ist besonders lange ohne Reinigung einsetzbar.Another advantage is the embodiment of the invention, according to which the base body between the two quick-change jaws to their largest spacing from each other has a closed surface. Thus, the penetration of chips, dust or coolant / lubricant is prevented in the region of the adjusting device, the tensioner according to the invention is particularly long without cleaning used.
Bevorzugt ist vorgesehen, dass die Stege mit ihrer Oberseite fluchtend mit der Oberfläche des Grundkörpers ausgebildet sind. Hierdurch wird eine einfachste Konstruktion erreicht bei gleichzeitig maximaler Breite einer Auflagefläche der Schnellwechselbacken auf dem Grundkörper.It is preferably provided that the webs are formed with their top side in alignment with the surface of the base body. As a result, a simplest construction is achieved while maximizing the width of a bearing surface of the quick-change jaws on the body.
In Ausgestaltung der Erfindung ist vorgesehen, dass die Schnellwechselbacken arretierbar ausgebildet sind, insbesondere eine lösbare Arretiervorrichtung zur unmittelbaren oder mittelbaren Arretierung an der Verstellvorrichtung vorgesehen ist. Eine solche Arretiervorrichtung stellt die Betriebsfähigkeit der Vorrichtung sicher, indem sie es erlaubt, die Spannkräfte sicher über die Backen in die Grundkörper einzuleiten.In an embodiment of the invention it is provided that the quick-change jaws are designed to be lockable, in particular a releasable locking device for direct or indirect locking is provided on the adjusting device. Such a locking device ensures the operability of the device by allowing it to safely initiate the clamping forces on the jaws in the body.
Erfindungsgemäß ist vorgesehen, dass die Arretiervorrichtung gebildet ist durch eine seitliche Durchgangsbohrung im Schnellwechselbacken, einen diese durchsetzenden Stift mit Manipulationsmittel und Eingreifende und einem Eingriffsende an der Verstellvorrichtung, wobei Eingreifende und Eingriffsende formschlüssig und/oder kraftschlüssig ineinander eingreifend sind. Details zu dieser Ausgestaltung sind in der nachfolgenden Figurenbeschreibung näher erläutert, die die Erfindung in einer bevorzugten Ausführungsform unter Bezugnahme auf eine Zeichnung beispielhaft beschreibt und weitere vorteilhafte Einzelheiten auch in den Figuren der Zeichnung angibt. Funktionsmäßig gleiche Teile sind dabei mit denselben Bezugszeichen versehen.According to the invention it is provided that the locking device is formed by a lateral through hole in the quick-change jaws, a passing through this pin with manipulation means and engaging end and an engagement end on the adjusting device, wherein engagement and engagement end are positively and / or non-positively engaging with each other. Details of this embodiment are explained in more detail in the following description of the figures, which describes the invention in a preferred embodiment with reference to a drawing by way of example and further advantageous details in the figures of the drawing. Functionally identical parts are provided with the same reference numerals.
Die Figuren der Zeichnung zeigen im Einzelnen:
- Fig. 1:
- zeigt eine perspektivische Ansicht der Erfindung,
- Fig. 2:
- zeigt einen Querschnitt entlang der Linie A-A aus
Fig. 1 , - Fig. 3:
- zeigt einen Längsschnitt entlang der Linie B-B aus
Fig. 1 und - Fig. 4
- zeigt ein Detail der Arretiervorrichtung.
- Fig. 1:
- shows a perspective view of the invention,
- Fig. 2:
- shows a cross section along the line AA
Fig. 1 . - 3:
- shows a longitudinal section along the line BB
Fig. 1 and - Fig. 4
- shows a detail of the locking device.
Gut zu erkennen ist auch, dass der Bereich zwischen den Schnellwechselbacken 3 durch eine geschlossene Oberfläche 10 gebildet ist, die das Innere der Spannvorrichtung nach außen abschließt und so eine hohe Verschmutzungsunanfälligkeit ermöglicht. Selbst in der dargestellten maximalen Spannweite der Vorrichtung ist die Oberfläche geschlossen. Da auch die Arretiervorrichtung 11 im Inneren angeordnet ist, ist das Eindringen von sind Staub, Schmutz oder Kühl-Schmierstoffen praktisch ausgeschlossen, die Vorrichtung ist sehr sicher.It can also be seen well that the area between the quick-
Die Erfindung ermöglicht mit großem Vorteil ein schnelles Verstellen der Spannweite des Zentrierspanners mit nur einem Handgriff, nämlich einer beispielsweise nur Vierteldrehung am Stift 13 mit der einen und das Positionsverändern des so gelösten Schnellwechselbackens 3 mit der anderen Hand in wenigen Sekunden.The invention allows with great advantage a rapid adjustment of the span of the Zentrierspanners with only one hand, namely, for example, only a quarter turn on the
- 11
- Zentrumsspannercentering vise
- 22
- Grundkörperbody
- 33
- SchnellwechselbackenQuick change jaws
- 44
- Verstellvorrichtungadjustment
- 55
- Oberseitetop
- 66
- BereichArea
- 77
- Unterseitebottom
- 88th
- Umgriffthrowing
- 99
- Stegweb
- 1010
- Oberflächesurface
- 1111
- Arretiervorrichtunglocking device
- 1212
- DurchgangsbohrungThrough Hole
- 1313
- Stiftpen
- 1414
- Manipulationsmittelmanipulation means
- 1515
- Eingreifendeengaging
- 1616
- Eingriffsendeengaging end
- 1717
- Platteplate
- 1818
- Abdeckplattecover
- 1919
- Antriebsanschlußdrive connection
- 2020
- WerkstückauflageflächeWorkpiece support surface
- 2121
- Anschlagattack
- 2222
- Radius, FaseRadius, chamfer
- 2323
- Spindelspindle
- 2424
- Schlittencarriage
- 2525
- Arretierblocklocking block
- 2626
- Nutgroove
- 2727
- Stegweb
Claims (9)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014111802.2A DE102014111802A1 (en) | 2014-08-19 | 2014-08-19 | Center tensioner with quick-change jaws |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2998068A1 true EP2998068A1 (en) | 2016-03-23 |
EP2998068B1 EP2998068B1 (en) | 2017-09-13 |
Family
ID=53539577
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15175930.5A Not-in-force EP2998068B1 (en) | 2014-08-19 | 2015-07-08 | Center tensioner with fast change jaws |
Country Status (2)
Country | Link |
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EP (1) | EP2998068B1 (en) |
DE (1) | DE102014111802A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018117100A1 (en) | 2017-08-30 | 2019-02-28 | Georg Kesel Gmbh & Co. Kg | clamping system |
CN115091234A (en) * | 2022-07-11 | 2022-09-23 | 容德精机(江苏)机床有限公司 | Adjustable plate fixing device for machine tool |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020101062B4 (en) * | 2020-01-17 | 2021-08-12 | Lang Technik Gmbh | Workpiece clamping device with coupling body between clamping body and threaded spindle |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004004636U1 (en) * | 2004-03-25 | 2004-05-27 | Hico Himmel & Co Kg | Centering clamping device for workpiece in machine tool has drive-side thread of dual thread spindle with greater core diameter than other thread for same thread rise |
DE102010047380B3 (en) | 2010-10-05 | 2011-11-24 | Lang Technik Gmbh | Linear mechanical quick release |
DE102012112755A1 (en) * | 2012-12-20 | 2014-06-26 | Gressel Ag | Central clamping device for clamping of workpiece, has spindle nuts that are rotatable between locking position for connection with clamping jaws and release position for releasing clamping jaws, and guides arranged on base body |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3420660A1 (en) * | 1984-06-02 | 1985-12-05 | Johann 7209 Gosheim Spreitzer | Centring body for mounting a multi-part centring and clamp-screw device of bolt-like design |
US6568694B1 (en) * | 2002-07-12 | 2003-05-27 | Phillip A. White | Adjustable workholding jaw assemblies |
DE20319326U1 (en) * | 2003-12-12 | 2004-03-04 | Krämer, Franz | Device for force-locking alignment and/or fixing of a workpiece or another object between two clamping jaws mounted in a synchronously displaceable manner on a device base |
-
2014
- 2014-08-19 DE DE102014111802.2A patent/DE102014111802A1/en not_active Withdrawn
-
2015
- 2015-07-08 EP EP15175930.5A patent/EP2998068B1/en not_active Not-in-force
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004004636U1 (en) * | 2004-03-25 | 2004-05-27 | Hico Himmel & Co Kg | Centering clamping device for workpiece in machine tool has drive-side thread of dual thread spindle with greater core diameter than other thread for same thread rise |
DE102010047380B3 (en) | 2010-10-05 | 2011-11-24 | Lang Technik Gmbh | Linear mechanical quick release |
DE102012112755A1 (en) * | 2012-12-20 | 2014-06-26 | Gressel Ag | Central clamping device for clamping of workpiece, has spindle nuts that are rotatable between locking position for connection with clamping jaws and release position for releasing clamping jaws, and guides arranged on base body |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018117100A1 (en) | 2017-08-30 | 2019-02-28 | Georg Kesel Gmbh & Co. Kg | clamping system |
DE102018117100B4 (en) | 2017-08-30 | 2019-08-01 | Georg Kesel Gmbh & Co. Kg | clamping system |
CN115091234A (en) * | 2022-07-11 | 2022-09-23 | 容德精机(江苏)机床有限公司 | Adjustable plate fixing device for machine tool |
Also Published As
Publication number | Publication date |
---|---|
DE102014111802A1 (en) | 2016-02-25 |
EP2998068B1 (en) | 2017-09-13 |
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