EP2292381A1 - Tensioning system for workpieces - Google Patents

Tensioning system for workpieces Download PDF

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Publication number
EP2292381A1
EP2292381A1 EP09169197A EP09169197A EP2292381A1 EP 2292381 A1 EP2292381 A1 EP 2292381A1 EP 09169197 A EP09169197 A EP 09169197A EP 09169197 A EP09169197 A EP 09169197A EP 2292381 A1 EP2292381 A1 EP 2292381A1
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EP
European Patent Office
Prior art keywords
clamping
clamping system
arms
stop element
workpieces
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.)
Withdrawn
Application number
EP09169197A
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German (de)
French (fr)
Inventor
Oswald Reiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
System 3R Schweiz AG
Original Assignee
System 3R Schweiz AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by System 3R Schweiz AG filed Critical System 3R Schweiz AG
Priority to EP09169197A priority Critical patent/EP2292381A1/en
Publication of EP2292381A1 publication Critical patent/EP2292381A1/en
Withdrawn legal-status Critical Current

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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
    • B25B5/003—Combinations of clamps
    • 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
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders

Definitions

  • the invention relates to a clamping system for fixing workpieces.
  • machining of metallic workpieces is often very complex and can include a variety of machining and cutting operations on different machine tools to produce the finished workpiece.
  • the workpieces are clamped between jaws on a support plate, or they are glued into prepared openings, but then long waiting times are required until the actual processing can be started.
  • the object of the present invention is in particular to propose a clamping system with the shortest possible set-up times, which can be operated with simple steps and is also suitable for different workpiece sizes.
  • the invention is achieved in that it has a stop element, at least two arms and at least one clamping bracket, wherein in the stop element, in the arms and in the clamping device means for positive, screw-free connection of the stop element with the Jibs on the one hand and for connecting the boom with the clamping bracket on the other hand are provided to form a stable frame.
  • the clamping system is characterized in particular by the fact that a clamping frame of different parts without screws is frictionally plugged together and on the one hand more than a workpiece and on the other hand workpieces of different sizes are clamped.
  • the clamping system in particular the set-up times are reduced to nearly 60% compared to the prior art.
  • the handling is very simple. Therefore, the work preparation can be done in an optimal way.
  • the clamping system is characterized by a small number of individual elements.
  • the clamping system is equipped with a reference element for connection to a reference clamping system or zero point clamping system, wherein the reference element is formed for example as a pallet, as a pin or the like.
  • the connecting means of the individual parts to be joined together are preferably conical connectors of various forms and sizes.
  • the clamping system in particular the clamping frame is formed form-fit, non-positive and screw-free. Only the actual workpiece is clamped by means of screws or set screws to the stop element. To give the tenter additional dimensional stability and wear resistance, all components can be hardened. Another advantage of the clamping system is that the machining can be vibration-free.
  • the clamping system is characterized by high flexibility in the configuration of the workpiece holders.
  • a clamping system is shown with a clamped workpiece 7, the clamping system consists essentially of a frame 9, which is formed from a stop element 1, two arms 2 and a clamping bracket 3.
  • the stop element 1, the two arms 2 and the clamping bracket 3 have connecting means 4, which are designed as plug-in connections.
  • the connecting means 4 are conical, which ensures a stable frame.
  • threaded holes 6 are provided for screws 8 for clamping the workpiece 7.
  • the versatility of the clamping system shows Fig. 2 ,
  • two workpieces 7 of different sizes are clamped by forming two frames 9.
  • the two frames 9 are formed by the stop element 1, by three arms 2 and by two clamping bracket 3.
  • the flexibility is achieved by the multiplicity of connecting elements 4 in the stop element 1, the arms 2 and the clamping straps 3.
  • the two workpieces 7 are held firmly by the guided in the threaded holes 6 of the clamping bracket 3 screws 8.
  • the clamping system of Fig. 2 is in perspective Fig. 3 shown.
  • a reference element 5 is attached to the underside of the stop element 1. This reference element 5 serves to use the clamping system in conjunction with a reference clamping system or a zero point clamping system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The clamping system has an impact element (1), two arms (2) and a clamp (3). A unit (4) is provided in the impact element, arms and clamp for form-fit screw-free connection of the impact element with the arms on one side and for connecting the arms with the clamp on another side for the formation of a stable frame (9).

Description

Die Erfindung betrifft ein Spannsystem zur Fixierung von Werkstücken.The invention relates to a clamping system for fixing workpieces.

Die Bearbeitung von metallischen Werkstücken ist häufig sehr komplex und kann eine Vielzahl von zerspanenden und spanlosen Arbeitsgängen an unterschiedlichen Bearbeitungsmaschinen umfassen, um das fertige Werkstück herzustellen. Insbesondere bei automatisierten Fertigungsabläufen ist es dabei wesentlich, dass das Werkstück bei jedem Arbeitsgang eine definierte Lage an dem jeweiligen Werkzeug annimmt.The machining of metallic workpieces is often very complex and can include a variety of machining and cutting operations on different machine tools to produce the finished workpiece. In particular, in automated production processes, it is essential that the workpiece assumes a defined position on the respective tool with each operation.

Vielfach werden die Werkstücke zwischen Backen auf einer Trägerplatte eingespannt, oder sie werden in vorbereitete Öffnungen eingeklebt, wobei dann aber lange Wartezeiten erforderlich sind, bis mit der eigentlichen Bearbeitung begonnen werden kann.In many cases, the workpieces are clamped between jaws on a support plate, or they are glued into prepared openings, but then long waiting times are required until the actual processing can be started.

Aus der DE 203 13 551 U1 ist ein Bausatz zur Bildung eines räumlichen Gestänges für das Positionieren einzelner oder mehrerer Spannelemente zum Einspannen von Werkstücken beschrieben.From the DE 203 13 551 U1 a kit for the formation of a spatial linkage for the positioning of single or multiple clamping elements for clamping workpieces is described.

Die Aufgabe der vorliegenden Erfindung besteht insbesondere darin, ein Spannsystem mit möglichst kleinen Rüstzeiten vorzuschlagen, welches mit einfachen Handgriffen bedienbar ist und auch für unterschiedliche Werkstückgrössen geeignet ist.The object of the present invention is in particular to propose a clamping system with the shortest possible set-up times, which can be operated with simple steps and is also suitable for different workpiece sizes.

Erfindungsgemäss wird die Erfindung dadurch gelöst, dass es ein Anschlagelement , mindestens zwei Ausleger und mindestens einen Spannbügel aufweist, wobei im Anschlagelement, in den Auslegern und im Spannbügel Mittel zur formschlüssigen, schraubfreien Verbindung des Anschlagelementes mit den Auslegern einerseits und zum Verbinden der Ausleger mit dem Spannbügel andererseits zur Bildung eines stabilen Rahmens vorgesehen sind.According to the invention, the invention is achieved in that it has a stop element, at least two arms and at least one clamping bracket, wherein in the stop element, in the arms and in the clamping device means for positive, screw-free connection of the stop element with the Jibs on the one hand and for connecting the boom with the clamping bracket on the other hand are provided to form a stable frame.

Das Spannsystem zeichnet sich insbesondere dadurch aus, dass ein Spannrahmen aus verschiedenen teilen ohne Schrauben kraftschlüssig zusammensteckbar ist und einerseits mehr als ein Werkstück und andererseits Werkstücke verschiedener Grösse einspannbar sind.The clamping system is characterized in particular by the fact that a clamping frame of different parts without screws is frictionally plugged together and on the one hand more than a workpiece and on the other hand workpieces of different sizes are clamped.

Durch dieses Spannsystem werden insbesondere die Rüstzeiten bis nahezu 60% gegenüber dem Stand der Technik reduziert. Die Handhabung ist sehr einfach. Daher kann die Arbeitsvorbereitung in optimaler Weise erfolgen. Ferner zeichnet sich das Spannsystem durch eine geringe Anzahl von Einzelelementen aus.By this clamping system in particular the set-up times are reduced to nearly 60% compared to the prior art. The handling is very simple. Therefore, the work preparation can be done in an optimal way. Furthermore, the clamping system is characterized by a small number of individual elements.

In vorteilhafter Weise ist das Spannsystem mit einem Referenzelement zur Verbindung mit einem Referenzspannsystem oder Nullpunktspannsystem ausgerüstet, wobei das Referenzelement beispielsweise als Palette, als ein Zapfen oder ähnliches ausgebildet ist.Advantageously, the clamping system is equipped with a reference element for connection to a reference clamping system or zero point clamping system, wherein the reference element is formed for example as a pallet, as a pin or the like.

Die Verbindungsmittel der einzelnen miteinander zu verbindenden Teile sind bevorzugt konische Steckverbindungen verschiedener Ausbildungsformen und Grössen.The connecting means of the individual parts to be joined together are preferably conical connectors of various forms and sizes.

Das Spannsystem, insbesondre der Spannrahmen ist form-, kraftschlüssig und schraubenfrei ausgebildet. Lediglich das eigentliche Werkstück wird mittels Schrauben oder Gewindestifte an das Anschlagelement eingespannt. Um dem Spannrahmen zusätzliche Formstabilität und Verschleissfestigkeit zu geben, können alle Komponenten gehärtet sein. Ein weiterer Vorteil des Spannsystems besteht darin, dass die Bearbeitung vibrationsfrei erfolgen kann. Das Spannsystem zeichnet sich durch hohe Flexibilität in der Konfiguration der Werkstückaufnahmen aus.The clamping system, in particular the clamping frame is formed form-fit, non-positive and screw-free. Only the actual workpiece is clamped by means of screws or set screws to the stop element. To give the tenter additional dimensional stability and wear resistance, all components can be hardened. Another advantage of the clamping system is that the machining can be vibration-free. The clamping system is characterized by high flexibility in the configuration of the workpiece holders.

Die Erfindung wird an einem Beispiel eines Spannsystems näher erläutert. Es zeigen:

  • Fig. 1 ein Spannsystem mit einem eingespannten Werkstück
  • Fig. 2 ein Spannsystem mit zwei Werkstücken verschiedener Grössen
  • Fig. 3 eine dreidimensionale Ansicht eines Spannsystems.
The invention will be explained in more detail using an example of a clamping system. Show it:
  • Fig. 1 a clamping system with a clamped workpiece
  • Fig. 2 a clamping system with two workpieces of different sizes
  • Fig. 3 a three-dimensional view of a clamping system.

In Fig. 1 ist ein Spannsystem mit einem eingespannten Werkstück 7 dargestellt, das Spannsystem besteht im Wesentlichen aus einem Rahmen 9, der aus einem Anschlagelement 1, aus zwei Auslegern 2 und einem Spannbügel 3 gebildet wird. Das Anschlagelement 1, die beiden Ausleger 2 und der Spannbügel 3 weisen Verbindungsmittel 4 auf, die als Steckverbindungen ausgebildet sind. Um eine form - und kraftschlüssige Verbindung zu erhalten, sind die Verbindungsmittel 4 konisch ausgebildet, welches einen stabilen Rahmen gewährleistet. Im Spannbügel 3 sind Gewindebohrungen 6 für Schrauben 8 zum Einspannen des Werkstückes 7 vorgesehen.In Fig. 1 a clamping system is shown with a clamped workpiece 7, the clamping system consists essentially of a frame 9, which is formed from a stop element 1, two arms 2 and a clamping bracket 3. The stop element 1, the two arms 2 and the clamping bracket 3 have connecting means 4, which are designed as plug-in connections. In order to obtain a positive and non-positive connection, the connecting means 4 are conical, which ensures a stable frame. In the clamping bracket 3 threaded holes 6 are provided for screws 8 for clamping the workpiece 7.

Die Vielseitigkeit des Spannsystems zeigt Fig. 2. In diesem Spannsystem sind zwei Werkstücke 7 unterschiedlicher Grösse durch Bildung zweier Rahmen 9 eingespannt. Die beiden Rahmen 9 werden durch das Anschlagelement 1, durch drei Ausleger 2 und durch zwei Spannbügel 3 gebildet. Die Flexibilität wird durch die Vielzahl der Verbindungselemente 4 in dem Anschlagelement 1, den Auslegern 2 und den Spannbügeln 3 erreicht. Die beiden Werkstücke 7 werden durch die in den Gewindelöchern 6 der Spannbügel 3 geführten Schrauben 8 fest gehalten.The versatility of the clamping system shows Fig. 2 , In this clamping system, two workpieces 7 of different sizes are clamped by forming two frames 9. The two frames 9 are formed by the stop element 1, by three arms 2 and by two clamping bracket 3. The flexibility is achieved by the multiplicity of connecting elements 4 in the stop element 1, the arms 2 and the clamping straps 3. The two workpieces 7 are held firmly by the guided in the threaded holes 6 of the clamping bracket 3 screws 8.

Das Spannsystem der Fig. 2 ist perspektivisch in Fig. 3 gezeigt. Insbesondere ist an der Unterseite des Anschlagelementes 1 ein Referenzelement 5 befestigt. Dieses Referenzelement 5 dient dazu, das Spannsystem in Verbindung mit einem Referenzspannsystem oder einem Nullpunktspannsystem zu verwenden.The clamping system of Fig. 2 is in perspective Fig. 3 shown. In particular, a reference element 5 is attached to the underside of the stop element 1. This reference element 5 serves to use the clamping system in conjunction with a reference clamping system or a zero point clamping system.

Bezugszeichenreference numeral

11
Anschlagelementstop element
22
Auslegerboom
33
Spannbügeltensioning bow
44
Verbindungsmittelconnecting means
55
Referenzelementreference element
66
Gewindelöcherthreaded holes
77
Werkstückworkpiece
88th
Schraubenscrew
99
Rahmenframe

Claims (6)

Spannsystem zur Fixierung von Werkstücken, dadurch gekennzeichnet, dass es ein Anschlagelement (1) , mindestens zwei Ausleger (2) und mindestens einen Spannbügel (3) aufweist, wobei im Anschlagelement (1), in den Auslegern (2) und im Spannbügel (3) Mittel (4) zur formschlüssigen, schraubfreien Verbindung des Anschlagelementes (1) mit den Auslegern (2) einerseits und zum Verbinden der Ausleger (2) mit dem Spannbügel (3) andererseits zur Bildung eines stabilen Rahmens (9) vorgesehen sind.Clamping system for fixing workpieces, characterized in that it comprises a stop element (1), at least two arms (2) and at least one clamping bracket (3), wherein in the stop element (1), in the arms (2) and in the clamping bracket (3 ) Means (4) for the positive, screw-free connection of the stop element (1) with the arms (2) on the one hand and for connecting the boom (2) with the clamping bracket (3) on the other hand to form a stable frame (9) are provided. Spannsystem nach Anspruch 1, dadurch gekennzeichnet, dass das Anschlagelement (1) ein Referenzelement (5) zur Verbindung mit einem Referenzspannsystem oder Nullpunktspannsystem aufweist.Clamping system according to claim 1, characterized in that the stop element (1) has a reference element (5) for connection to a reference clamping system or zero point clamping system. Spannsystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Referenzelement (5) als Palette oder Zapfen ausgebildet ist.Clamping system according to claim 1 or 2, characterized in that the reference element (5) is designed as a pallet or pin. Spannsystem nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die Verbindungsmittel (4) konisch ausgebildet sind.Clamping system according to one of the preceding claims, characterized in that the connecting means (4) are conical. Spannsystem nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Rahmen (9) gebildet aus dem Anschlagelement(1) , mindestens zweier Ausleger (2) und mindestens eines Spannbügels (3) in verschiedener Grösse herstellbar ist.Clamping system according to one of the preceding claims, characterized in that the frame (9) formed from the stop element (1), at least two cantilevers (2) and at least one tensioning bow (3) in different size can be produced. Spannsystem nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Spannbügel (3) Gewindelöcher (6) zum Einspannen eines Werkstückes (7) mittels Schrauben (8) aufweist.Clamping system according to one of the preceding claims, characterized in that the clamping bracket (3) has threaded holes (6) for clamping a workpiece (7) by means of screws (8).
EP09169197A 2009-09-02 2009-09-02 Tensioning system for workpieces Withdrawn EP2292381A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09169197A EP2292381A1 (en) 2009-09-02 2009-09-02 Tensioning system for workpieces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09169197A EP2292381A1 (en) 2009-09-02 2009-09-02 Tensioning system for workpieces

Publications (1)

Publication Number Publication Date
EP2292381A1 true EP2292381A1 (en) 2011-03-09

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ID=41567197

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EP09169197A Withdrawn EP2292381A1 (en) 2009-09-02 2009-09-02 Tensioning system for workpieces

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2961504A4 (en) * 2013-03-01 2016-12-07 Steven E Phillips Modular fixture plate system for positioning a workpiece during a manufacturing and/or inspection process
US11969847B2 (en) 2021-05-19 2024-04-30 Metrologyworks, Inc. Modular fixture plate alignment system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE178700C (en) *
DE611344C (en) * 1935-03-26 Richard Wirsbitzke Screw clamp
GB1048935A (en) * 1962-05-10 1966-11-23 Bernard Charles Roach Work holding clamp
DE1237292B (en) * 1958-03-12 1967-03-23 Hulda Erna Mayer Geb Moosmann Stenter frame
US4132396A (en) * 1978-04-06 1979-01-02 Graham George W Glueing clamp assembly
DE20313551U1 (en) 2003-08-29 2005-01-05 Kuka Schweissanlagen Gmbh Kit for forming a spatial linkage for the positioning of work elements

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE178700C (en) *
DE611344C (en) * 1935-03-26 Richard Wirsbitzke Screw clamp
DE1237292B (en) * 1958-03-12 1967-03-23 Hulda Erna Mayer Geb Moosmann Stenter frame
GB1048935A (en) * 1962-05-10 1966-11-23 Bernard Charles Roach Work holding clamp
US4132396A (en) * 1978-04-06 1979-01-02 Graham George W Glueing clamp assembly
DE20313551U1 (en) 2003-08-29 2005-01-05 Kuka Schweissanlagen Gmbh Kit for forming a spatial linkage for the positioning of work elements

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2961504A4 (en) * 2013-03-01 2016-12-07 Steven E Phillips Modular fixture plate system for positioning a workpiece during a manufacturing and/or inspection process
EP2961504B1 (en) 2013-03-01 2018-11-28 Steven E. Phillips Modular fixture plate system for positioning a workpiece during a manufacturing and/or inspection process
US10183380B2 (en) 2013-03-01 2019-01-22 Steven E. Phillips Modular fixture plate system for positioning a workpiece during a manufacturing and/or inspection process
US11458597B2 (en) 2013-03-01 2022-10-04 Steven E. Phillips Modular fixture plate system for positioning a workpiece during a manufacturing and/or inspection process
US12097594B2 (en) 2013-03-01 2024-09-24 Steven E. Phillips Modular fixture plate system for positioning a workpiece during a manufacturing and/or inspection process
US11969847B2 (en) 2021-05-19 2024-04-30 Metrologyworks, Inc. Modular fixture plate alignment system

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