EP1752233B1 - Hose-press for producing individual hydraulic conduits - Google Patents

Hose-press for producing individual hydraulic conduits Download PDF

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Publication number
EP1752233B1
EP1752233B1 EP06116635A EP06116635A EP1752233B1 EP 1752233 B1 EP1752233 B1 EP 1752233B1 EP 06116635 A EP06116635 A EP 06116635A EP 06116635 A EP06116635 A EP 06116635A EP 1752233 B1 EP1752233 B1 EP 1752233B1
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EP
European Patent Office
Prior art keywords
press
hose
jaw
clamping
centering
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EP06116635A
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German (de)
French (fr)
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EP1752233A3 (en
EP1752233A2 (en
Inventor
Stefan Kölsch
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Individual
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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
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements

Definitions

  • the invention relates to a hose pressing device for producing individual hydraulic lines by means of press fittings or press sleeves, comprising a plurality of trapezoidal pressing jaws movable towards each other, whose longitudinal axes intersect in a common center, which is located in the pressing space, drive means for generating a force acting on the pressing jaws, on the press fitting or sleeve transmitted pressing force and with supply openings for the press fittings or sleeves on the one hand and the hydraulic line on the other hand, according to the preamble of claim 1.
  • An example of such a pressing device is known from DE 199 40 744 A1 known.
  • press fittings or press sleeves which are available in very different embodiments, and resorting to cut-length hydraulic hoses, individual type hydraulic lines can be used for a very wide variety of applications, e.g. for driving hydraulic cylinders in construction machines or similar devices.
  • a further developed hose pressing device for the production of individual hydraulic lines specify by means of press fittings or compression sleeves, which can be done with the help of the tube pressing device now not only the actual process of pressing, but also an exact positioning of the parts to be joined in terms of a pre-assembly.
  • the specified hose pressing device manufacturing times in the production of complete with valves hydraulic lines or hydraulic hoses to be reduced and thus the overall cost of producing such parts can be reduced.
  • the hose pressing device In addition to the hose pressing device to ensure the possibility of automated production of complete hydraulic lines or hydraulic hoses.
  • hose pressing device In the hose pressing device according to the invention, it is assumed that a large number of trapezoidal pressing jaws which can be moved on one another, whose longitudinal axes intersect at a common center, which is located in the pressing space. Furthermore, known drive means are provided for producing a pressing force acting on the pressing jaws, transmitted to the pressing fitting or the pressing sleeve pressing force and it has the device supply openings for the press fittings or pressing sleeves on the one hand and the hydraulic line or the hydraulic hose on the other.
  • prestressed trapezoidal clamping and centering jaw segments are arranged on both sides of the pressing jaws, with their longitudinal axes displaceable against a stop, wherein the entirety of the centering jaw segments forms a respective conical centering and feed opening.
  • the inner diameter of the conical feed opening is predetermined such that both the respective press fitting or compression sleeve and the respective end of the hydraulic line to be connected to the fitting or sleeve or the hydraulic hose can be securely fixed until the press connection step is carried out.
  • the clamping and Zentrierbackensegment is, suitably slidably connected via a guide, movably connected to the respective pressing jaw.
  • the feed opening facing end of the respective clamping and Zentrierbackensegments has a circular arc shape.
  • coil springs are introduced into the respective clamping and Zentrierbackensegmente, wherein the springs are supported against a connected to the associated pressing jaw support member.
  • desired biasing forces may be applied to other, e.g. be generated by hydraulic or pneumatic means.
  • means for adjusting the spring preload are arranged in the supporting part. These means can be designed as an adjusting screw.
  • the respective clamping and Zentrierbackensegment e a running in the longitudinal axis direction T-shaped groove, in which a complementary T-shaped profile engages, wherein the profile is connected to the associated pressing jaw.
  • a slot can be introduced, in which a pin engages, wherein the pin with the associated clamping and Zentrierbackensegment is connected to cause a displacement path of the segment boundary relative to the pressing jaw.
  • the tube pressing device is moved together with the pressing jaws to a predefined dimension, so that a problem-free insertion of the respective pressing sleeve or fitting into the pressing space is possible.
  • the clamping and Zentrierbackensegmente form due to the conical feed opening a desired centering, wherein the conical or wedge effect holds the sleeve or the fitting frictionally or detent.
  • the prestressed clamping and Zentrierbackensegmente cause here too a fixation and a secure hold of the relevant line end.
  • the actual step of pressing takes place by the pressing jaws are acted upon by a corresponding pressure force.
  • the clamping and centering jaw segments can execute a relative movement to the respective pressing jaw so that damage in the area of the hydraulic hose or the pressing sleeve located in the device is excluded.
  • the press jaws of the hose pressing device are moved apart and it can be removed from the completed hydraulic line.
  • the tube pressing device consists of a plurality of trapezoidal pressing jaws 4 which are movable toward one another and whose longitudinal axes intersect at a common center within the pressing space.
  • the upper side of the respective pressing jaws 4 is in operative connection with drive means, not shown, for producing a pressing force acting on the pressing jaws and transmitted to the pressing fitting or pressing sleeve 11. Furthermore, supply openings 12 for the compression sleeve or press fitting 11 and the hydraulic line 13 are provided.
  • Fig. 1 are arranged on both sides of the respective pressing jaw 4 clamping and Zentrierbackensegmente 5, wherein the entirety of the clamping and Zentrierbackensegmente 5 each have a conical centering and feed opening (see reference numeral 12 in accordance with Fig. 2 and 3 ).
  • the inner diameter of the conical feed openings 12 is set so that both the respective press fitting or compression sleeve 11 and the respective end of the hydraulic line 13 can be fixed in the device until the press-connecting step is carried out.
  • a groove is introduced, which serves to attach a T-shaped profile 2.
  • the projecting portion of the T-shaped profile 2 engages in a complementary T-shaped groove 22 which is located in the respective clamping and Zentrierbackensegmentsegment 5, a.
  • the T-shaped profile 2 also has a slot 23 into which a pin 10 engages.
  • the pin 10 is fixed in the respective clamping and Zentrierbackensegment 5.
  • a limitation of the displacement of the segment 5 relative to the pressing jaw 4 can be realized.
  • the springs 6 are supported by a support member 3.
  • the support member 3 is fixed by means of screws 7 and washers 8 on the pressing jaw 4, wherein the T-shaped profile 2 is also fixed by means of screws 9 on the pressing jaw 4.
  • the clamping and Zentrierbackensegmente 5 In the lower, facing the feed opening 12 section, the clamping and Zentrierbackensegmente 5 have a circular arc shape 56, taking into account the regular circular cross sections of compression sleeve 11 and hydraulic line or hydraulic hose thirteenth
  • the respective pressing jaw 4 can also be connected to means for generating thermal energy or have such means, in addition to the pressing effect to cause a shrinkage of a hose material suitable in this regard.
  • the respective clamping and Zentrierbackensegmente are designed as 30 ° segments and there are provided on both sides in each case eight segments and eight pressing jaws.
  • the hose pressing process runs with reference to the Fig. 2 and 3 as follows.
  • the compression sleeve or press fitting 11 is pressed against the clamping and Zentrierbackensegmente in the feed opening 12, wherein overcoming the bias slide back the segments, then the compression sleeve or press fitting 11 as in the Fig. 3 , If necessary, to fix by provided on the sleeve circumferential recesses.
  • hydraulic line 13 is inserted into the opposite feed opening 12 and moved over the free, slot-shaped end of the compression sleeve or press fitting 11.
  • the end of the respective hydraulic line 13 is likewise fixed via the clamping and centering jaw segments 5 assigned to the corresponding feed opening 12.
  • the actual pressing is then performed by moving the pressing jaws 4 together, wherein a secure hold of the end of the hydraulic line 13 is ensured by a permanent deformation in the sense of crimping the compression sleeve 11.

Abstract

A press holds a hose for the installation of end-fittings for the manufacture of individual hydraulic hoses using pressed fittings or press sleeves. The components are assembled using a number of petal segmented converging trapezoidal press jaws (4) whose longitudinal axes converge at a common center point within the press chamber. Pressure is applied by a pre-compresses trapezoidal clamping and centering press jaws directed towards a conical centering and feed inlet.

Description

Die Erfindung betrifft eine Schlauchpressvorrichtung zur Herstellung von individuellen Hydraulikleitungen mittels Pressarmaturen oder Presshülsen, umfassend eine Vielzahl von aufeinander zu fahrbaren trapezförmigen Pressbacken, deren Längsachsen sich in einem gemeinsam Mittelpunkt schneiden, welcher sich im Pressraum befindet, Antriebsmittel zum Erzeugen einer auf die Pressbacken einwirkenden, auf die Pressarmatur oder -hülse übertragenen Presskraft sowie mit Zuführungsöffnungen für die Pressarmaturen oder -hülsen einerseits und die Hydraulikleitung andererseits, gemäß Oberbegriff des Patentanspruchs 1. Ein Beispiel einer solchen Pressvorrichtung ist aus der DE 199 40 744 A1 bekannt.The invention relates to a hose pressing device for producing individual hydraulic lines by means of press fittings or press sleeves, comprising a plurality of trapezoidal pressing jaws movable towards each other, whose longitudinal axes intersect in a common center, which is located in the pressing space, drive means for generating a force acting on the pressing jaws, on the press fitting or sleeve transmitted pressing force and with supply openings for the press fittings or sleeves on the one hand and the hydraulic line on the other hand, according to the preamble of claim 1. An example of such a pressing device is known from DE 199 40 744 A1 known.

Mit Hilfe von Pressarmaturen oder Presshülsen, die in ganz unterschiedlicher Ausführungsform zur Verfügung stehen, und unter Rückgriff auf ablängbare Hydraulikschläuche können Hydraulikleitungen individueller Art für ganz verschiedene Anwendungszwecke, z.B. zum Ansteuern von Hydraulikzylindern bei Baumaschinen oder dergleichen Geräten, hergestellt werden.By means of press fittings or press sleeves, which are available in very different embodiments, and resorting to cut-length hydraulic hoses, individual type hydraulic lines can be used for a very wide variety of applications, e.g. for driving hydraulic cylinders in construction machines or similar devices.

Zum Zweck des Verbindens des jeweiligen Endes des Hydraulikschlauches mit der zugehörigen Pressarmatur oder Presshülse ist es nach dem bisherigen Stand der Technik notwendig, das Schlauchende auf die zu verpressende Hülse aufzuschieben und beide Elemente entsprechend zu positionieren. In einem weiteren Arbeitsschritt wird die so vorbereitete Leitungsverbindung in einer Schlauchpresse mittels mindestens zweier Pressbacken zu einer dauerhaften und druckfesten Verbindung verpresst. Die vorstehend erläuterte Verfahrensweise ist sehr zeitaufwendig und es können Fehler bei der notwendigen exakten Positionierung der zu verpressenden Armatur beim Einbringen in eine Schlauchpresse und dem Ausführen des sich anschließenden Pressschritts nicht vermieden werden.For the purpose of connecting the respective end of the hydraulic hose with the associated press fitting or compression sleeve, it is necessary in the prior art to postpone the hose end to the sleeve to be pressed and to position both elements accordingly. In a further step, the thus prepared line connection is pressed in a hose press by means of at least two pressing jaws to a permanent and pressure-resistant connection. The procedure described above is very time-consuming and it can not be avoided mistakes in the necessary exact positioning of the valve to be pressed when introducing into a hose press and the execution of the subsequent pressing step.

Aus dem Vorstehenden ist es daher Aufgabe der Erfindung, eine weiterentwickelte Schlauchpressvorrichtung zur Herstellung von individuellen Hydraulikleitungen mittels Pressarmaturen oder Presshülsen anzugeben, wobei mit Hilfe der Schlauchpressvorrichtung nun nicht nur der eigentliche Vorgang des Verpressens, sondern auch gleichzeitig eine exakte Positionierung der zu verbindenden Teile im Sinne eines Vormontageschritts erfolgen kann.
Mit der anzugebenden Schlauchpressvorrichtung sollen die Fertigungszeiten bei der Herstellung von mit Armaturen komplettierten Hydraulikleitungen oder Hydraulikschläuchen gesenkt und damit insgesamt die Kosten bei der Herstellung derartiger Teile reduziert werden.
Ergänzend soll die Schlauchpressvorrichtung die Möglichkeit einer automatisierbaren Fertigung von komplettierten Hydraulikleitungen oder Hydraulikschläuchen gewährleisten.From the foregoing, it is therefore an object of the invention, a further developed hose pressing device for the production of individual hydraulic lines specify by means of press fittings or compression sleeves, which can be done with the help of the tube pressing device now not only the actual process of pressing, but also an exact positioning of the parts to be joined in terms of a pre-assembly.
With the specified hose pressing device manufacturing times in the production of complete with valves hydraulic lines or hydraulic hoses to be reduced and thus the overall cost of producing such parts can be reduced.
In addition to the hose pressing device to ensure the possibility of automated production of complete hydraulic lines or hydraulic hoses.

Die Lösung der Aufgabe der Erfindung erfolgt durch eine Schlauchpressvorrichtung gemäß Merkmalskombination nach Patentanspruch 1, wobei die Unteransprüche mindestens zweckmäßige Ausgestaltungen und Weiterbildungen darstellen.The object of the invention is achieved by a tube pressing device according to feature combination according to claim 1, wherein the dependent claims represent at least expedient refinements and developments.

Mit Hilfe der Erfindung gelingt es, Presshülse oder Pressarmatur in einem mit einer Halterung, welche gleichzeitig als Zentrierung wirkt, versehenen Pressbackensatz zu fixieren, damit anschließend eine Leitung bzw. ein Hydraulikschlauch axial in die Presshülse oder Armatur eingestoßen werden kann. Ebenso besteht die Möglichkeit, dass der vorstehend erläuterte Vorgang so abläuft, dass zunächst das Leitungsende in den Pressbackensatz eingeschoben wird und darauf folgend die Presshülse oder Pressarmatur in den Pressbackensatz einzustoßen ist.With the help of the invention, it is possible to fix the press sleeve or press fitting in a press jaw set provided with a holder, which simultaneously acts as a centering, so that subsequently a line or a hydraulic hose can be pushed axially into the press sleeve or fitting. Likewise, there is the possibility that the process described above takes place in such a way that first the line end is inserted into the die set and subsequently the pressing sleeve or press fitting is to be pushed into the die set.

Bei der Schlauchpressvorrichtung gemäß der Erfindung wird von einer Vielzahl von aufeinander zu fahrbaren, trapezförmigen Pressbacken ausgegangen, deren Längsachsen sich in einem gemeinsamen Mittelpunkt schneiden, welcher sich im Pressraum befindet. Weiterhin sind an sich bekannte Antriebsmittel zum Erzeugen einer auf die Pressbacken einwirkenden, auf die Pressarmatur oder die Presshülse übertragenen Presskraft vorgesehen und es weist die Vorrichtung Zuführungsöffnungen für die Pressarmaturen oder Presshülsen einerseits und die Hydraulikleitung bzw. den Hydraulikschlauch andererseits auf.In the hose pressing device according to the invention, it is assumed that a large number of trapezoidal pressing jaws which can be moved on one another, whose longitudinal axes intersect at a common center, which is located in the pressing space. Furthermore, known drive means are provided for producing a pressing force acting on the pressing jaws, transmitted to the pressing fitting or the pressing sleeve pressing force and it has the device supply openings for the press fittings or pressing sleeves on the one hand and the hydraulic line or the hydraulic hose on the other.

Erfindungsgemäß sind beidseitig der Pressbacken, zu deren Längsachsen gegen einen Anschlag verschieblich, jeweils vorgespannte trapezförmige Klemm- und Zentrierbackensegmente angeordnet, wobei die Gesamtheit der Zentrierbackensegmente eine jeweils konische Zentrier- und Zuführungsöffnung bildet.
Der innere Durchmesser der konischen Zuführungsöffnung ist so vorgegeben, dass sowohl die jeweilige Pressarmatur oder Presshülse als auch das jeweilige Ende der mit der Armatur oder Hülse zu verbindenden Hydraulikleitung oder des Hydraulikschlauches bis zur Ausführung des Pressverbindungsschritts sicher fixierbar ist.According to the invention, prestressed trapezoidal clamping and centering jaw segments are arranged on both sides of the pressing jaws, with their longitudinal axes displaceable against a stop, wherein the entirety of the centering jaw segments forms a respective conical centering and feed opening.
The inner diameter of the conical feed opening is predetermined such that both the respective press fitting or compression sleeve and the respective end of the hydraulic line to be connected to the fitting or sleeve or the hydraulic hose can be securely fixed until the press connection step is carried out.

Das Klemm- und Zentrierbackensegment ist, zweckmäßigerweise über eine Führung gleitend, beweglich mit der jeweiligen Pressbacke verbunden.The clamping and Zentrierbackensegment is, suitably slidably connected via a guide, movably connected to the respective pressing jaw.

Das zur Zuführungsöffnung weisende Ende des jeweiligen Klemm- und Zentrierbackensegments weist eine Kreisbogenform auf.The feed opening facing end of the respective clamping and Zentrierbackensegments has a circular arc shape.

Zur Erzeugung der Vorspannung sind in die jeweiligen Klemm- und Zentrierbackensegmente Sacklochbohrungen zur teilweisen Aufnahme von Federn, insbesondere Schraubenfedern eingebracht, wobei die Federn sich gegen ein mit der zugehörigen Pressbacke verbundenes Tragteil abstützen. Selbstverständlich können die gewünschten Vorspannkräfte auch auf anderem, z.B. hydraulischem oder pneumatischem Wege erzeugt werden.To generate the bias blind holes for partially receiving springs, in particular coil springs are introduced into the respective clamping and Zentrierbackensegmente, wherein the springs are supported against a connected to the associated pressing jaw support member. Of course, the desired biasing forces may be applied to other, e.g. be generated by hydraulic or pneumatic means.

Bei der Ausführungsform von in den Sacklochbohrungen befindlichen Federn sind im Tragteil Mittel zum Einstellen der Federvorspannung angeordnet. Diese Mittel können als Verstellschraube ausgeführt sein.In the embodiment of springs located in the blind bores, means for adjusting the spring preload are arranged in the supporting part. These means can be designed as an adjusting screw.

Bei einer Ausgestaltung der Erfindung weisen die jeweiligen Klemm- und Zentrierbackensegmente eine in Längsachsenrichtung verlaufende T-förmige Nut auf, in welche ein komplementäres T-förmiges Profil eingreift, wobei das Profil mit der zugeordneten Pressbacke verbunden ist.In one embodiment of the invention, the respective clamping and Zentrierbackensegmente a running in the longitudinal axis direction T-shaped groove, in which a complementary T-shaped profile engages, wherein the profile is connected to the associated pressing jaw.

Im T-förmigen Profil kann ein Langloch eingebracht werden, in welches ein Stift eingreift, wobei der Stift mit dem zugehörigen Klemm- und Zentrierbackensegment verbunden ist, um eine Verschiebeweg-Begrenzung des Segments relativ zur Pressbacke zu bewirken.In the T-shaped profile, a slot can be introduced, in which a pin engages, wherein the pin with the associated clamping and Zentrierbackensegment is connected to cause a displacement path of the segment boundary relative to the pressing jaw.

Zur Ausführung des Press-Verbindungsvorgangs wird zunächst die Schlauchpressvorrichtung mit den Pressbacken auf ein vordefiniertes Maß zusammengefahren, so dass ein problemloses Einschieben der jeweiligen Presshülse oder Armatur in den Pressraum möglich ist. Die Klemm- und Zentrierbackensegmente bilden bedingt durch die konische Zuführungsöffnung eine gewünschte Zentrierung, wobei die konische bzw. Keilwirkung die Hülse bzw. die Armatur kraftschlüssig bzw. rastend hält. Über die gegenüberliegende Zuführungsöffnung wird jetzt das betreffende Schlauchende eingeschoben und mit der Presshülse in Kontakt gebracht. Die vorgespannten Klemm- und Zentrierbackensegmente bewirken auch hier eine Fixierung und einen sicheren Halt des betreffenden Leitungsendes. Nachdem die gewünschte Relativposition zwischen Presshülse bzw. Pressarmatur und dem Leitungsende erreicht wurde, findet der eigentliche Schritt des Verpressens statt, indem die Pressbacken mit einer entsprechenden Druckkraft beaufschlagt werden. Bei der Ausführung dieses Schritts des Zusammenfahrens der Pressbacken können die Klemm- und Zentrierbackensegmente eine Relativbewegung zur jeweiligen Pressbacke ausführen, so dass Beschädigungen im Bereich des in der Vorrichtung befindlichen Hydraulikschlauches bzw. der Presshülse ausgeschlossen sind.To carry out the press-connection process, first the tube pressing device is moved together with the pressing jaws to a predefined dimension, so that a problem-free insertion of the respective pressing sleeve or fitting into the pressing space is possible. The clamping and Zentrierbackensegmente form due to the conical feed opening a desired centering, wherein the conical or wedge effect holds the sleeve or the fitting frictionally or detent. About the opposing feed opening now the respective hose end is inserted and brought into contact with the compression sleeve. The prestressed clamping and Zentrierbackensegmente cause here too a fixation and a secure hold of the relevant line end. After the desired relative position between the compression sleeve or press fitting and the line end has been reached, the actual step of pressing takes place by the pressing jaws are acted upon by a corresponding pressure force. When carrying out this step of moving the pressing jaws together, the clamping and centering jaw segments can execute a relative movement to the respective pressing jaw so that damage in the area of the hydraulic hose or the pressing sleeve located in the device is excluded.

Nachdem der Pressvorgang ausgeführt wurde, werden die Pressbacken der Schlauchpressvorrichtung auseinander gefahren und es kann die komplettierte Hydraulikleitung entnommen werden.After the pressing process has been carried out, the press jaws of the hose pressing device are moved apart and it can be removed from the completed hydraulic line.

Die Erfindung soll nachstehend anhand eines Ausführungsbeispiels sowie unter Zuhilfenahme von Figuren näher erläutert werden.The invention will be explained below with reference to an embodiment and with the aid of figures.

Hierbei zeigen:

Fig. 1
eine perspektivische Darstellung einer einzelnen Pressbacke mit zugehörigen Klemm- und Zentrierbackensegmenten;
Fig. 2
eine dreidimensionale sowie eine Schnittdarstellung der erfindungsgemäßen Schlauchpressvorrichtung vor dem Einbringen der Presshülse oder Pressarmatur und der Hydraulikleitung und
Fig. 3
eine Darstellung der Schlauchpressvorrichtung mit auf die Presshülse bzw. Pressarmatur aufgeschobener Hydraulikleitung unmittelbar vor dem Ausführen des Pressschritts.
Hereby show:
Fig. 1
a perspective view of a single press jaw with associated clamping and Zentrierbackensegmenten;
Fig. 2
a three-dimensional and a sectional view of the hose pressing device according to the invention prior to the introduction of the compression sleeve or press fitting and the hydraulic line and
Fig. 3
an illustration of the hose pressing device with pushed onto the compression sleeve or press fitting hydraulic line immediately prior to performing the pressing step.

Wie aus den Darstellungen nach den Fig. 2 und 3 ersichtlich, besteht die Schlauchpressvorrichtung aus einer Vielzahl von aufeinander zu fahrbaren trapezförmigen Pressbacken 4, deren Längsachsen sich in einem gemeinsamen Mittelpunkt innerhalb des Pressraums schneiden.As from the representations after the Fig. 2 and 3 it can be seen, the tube pressing device consists of a plurality of trapezoidal pressing jaws 4 which are movable toward one another and whose longitudinal axes intersect at a common center within the pressing space.

Die Oberseite der jeweiligen Pressbacken 4 steht mit nicht gezeigten Antriebsmitteln zum Erzeugen einer auf die Pressbacken einwirkenden, auf die Pressarmatur oder Presshülse 11 übertragenen Presskraft in Wirkverbindung. Weiterhin sind Zuführungsöffnungen 12 für die Presshülse bzw. Pressarmatur 11 und die Hydraulikleitung 13 vorgesehen.The upper side of the respective pressing jaws 4 is in operative connection with drive means, not shown, for producing a pressing force acting on the pressing jaws and transmitted to the pressing fitting or pressing sleeve 11. Furthermore, supply openings 12 for the compression sleeve or press fitting 11 and the hydraulic line 13 are provided.

Gemäß der Darstellung nach Fig. 1 sind beidseitig der jeweiligen Pressbacke 4 Klemm- und Zentrierbackensegmente 5 angeordnet, wobei die Gesamtheit der Klemm- und Zentrierbackensegmente 5 eine jeweils konische Zentrier- und Zuführungsöffnung (siehe Bezugszeichen 12 gemäß Fig. 2 und 3) bildet.As shown Fig. 1 are arranged on both sides of the respective pressing jaw 4 clamping and Zentrierbackensegmente 5, wherein the entirety of the clamping and Zentrierbackensegmente 5 each have a conical centering and feed opening (see reference numeral 12 in accordance with Fig. 2 and 3 ).

Der innere Durchmesser der konischen Zuführungsöffnungen 12 ist so vorgegeben, dass sowohl die jeweilige Pressarmatur oder Presshülse 11 als auch das jeweilige Ende der Hydraulikleitung 13 bis zur Ausführung des Pressverbindungsschritts in der Vorrichtung fixierbar ist.The inner diameter of the conical feed openings 12 is set so that both the respective press fitting or compression sleeve 11 and the respective end of the hydraulic line 13 can be fixed in the device until the press-connecting step is carried out.

Um die Verschiebebeweglichkeit der Klemm- und Zentrierbackensegmente 5 relativ zur Pressbacke 4 zu gewährleisten, ist bei der Ausführungsform nach Fig. 1 in gegenüberliegenden Bereichen der Pressbacke 4 eine Nut eingebracht, die der Befestigung eines T-förmigen Profils 2 dient.In order to ensure the mobility of the clamping and Zentrierbackensegmente 5 relative to the pressing jaw 4, is in the embodiment according to Fig. 1 In opposite areas of the pressing jaw 4, a groove is introduced, which serves to attach a T-shaped profile 2.

Der überstehende Bereich des T-förmigen Profils 2 greift in eine komplementäre T-förmige Nut 22, die sich im jeweiligen Klemm- und Zentrierbackensegment 5 befindet, ein.The projecting portion of the T-shaped profile 2 engages in a complementary T-shaped groove 22 which is located in the respective clamping and Zentrierbackensegmentsegment 5, a.

Das T-förmige Profil 2 weist darüber hinaus ein Langloch 23 auf, in das ein Stift 10 eingreift.The T-shaped profile 2 also has a slot 23 into which a pin 10 engages.

Der Stift 10 ist im jeweiligen Klemm- und Zentrierbackensegment 5 befestigt. Über den Stift 10 in Verbindung mit dem Langloch 23 im T-förmigen Profil 2 ist eine Begrenzung des Verschiebewegs des Segments 5 relativ zur Pressbacke 4 realisierbar.The pin 10 is fixed in the respective clamping and Zentrierbackensegment 5. About the pin 10 in conjunction with the slot 23 in the T-shaped profile 2, a limitation of the displacement of the segment 5 relative to the pressing jaw 4 can be realized.

Zum Erreichen der Vorspannung der Klemm- und Zentrierbackensegmente 5 kann auf die Lösung mit Federn 6 gemäß Fig. 1 zurückgegriffen werden.To achieve the bias of the clamping and Zentrierbackensegmente 5 can on the solution with springs 6 according to Fig. 1 be resorted to.

Hierfür sind in den jeweiligen Klemm- und Zentrierbackensegmenten 5 Sacklochbohrungen 55 eingebracht, die der teilweisen Aufnahme der jeweiligen Feder 6 dienen.For this purpose, 5 blind holes 55 are introduced in the respective clamping and Zentrierbackensegmenten, which serve the partial reception of the respective spring 6.

Die Federn 6 wiederum stützen sich über ein Tragteil 3 ab.The springs 6 in turn are supported by a support member 3.

Mit Hilfe von Einstellschrauben 1 besteht die Möglichkeit, die Vorspannung der Federn 6 zu variieren.With the help of adjusting screws 1, it is possible to vary the bias of the springs 6.

Das Tragteil 3 wird mit Hilfe von Schrauben 7 und Unterlegscheiben 8 an der Pressbacke 4 befestigt, wobei das T-förmige Profil 2 ebenfalls mit Hilfe von Schrauben 9 an der Pressbacke 4 fixiert wird.The support member 3 is fixed by means of screws 7 and washers 8 on the pressing jaw 4, wherein the T-shaped profile 2 is also fixed by means of screws 9 on the pressing jaw 4.

Im unteren, zur Zuführungsöffnung 12 weisenden Abschnitt besitzen die Klemm- und Zentrierbackensegmente 5 eine Kreisbogenform 56 unter Beachtung der regelmäßig kreisförmigen Querschnitte von Presshülse 11 und Hydraulikleitung oder Hydraulikschlauch 13.In the lower, facing the feed opening 12 section, the clamping and Zentrierbackensegmente 5 have a circular arc shape 56, taking into account the regular circular cross sections of compression sleeve 11 and hydraulic line or hydraulic hose thirteenth

Falls notwendig, kann die jeweilige Pressbacke 4 auch mit Mitteln zur Erzeugung thermischer Energie verbunden sein oder derartige Mittel aufweisen, um neben der Presswirkung auch ein Schrumpfen eines diesbezüglich geeigneten Schlauchmaterials zu bewirken.If necessary, the respective pressing jaw 4 can also be connected to means for generating thermal energy or have such means, in addition to the pressing effect to cause a shrinkage of a hose material suitable in this regard.

Bei der Ausführungsform nach Fig. 1 sind die jeweiligen Klemm- und Zentrierbackensegmente als 30°-Segmente ausgeführt und es sind auf beiden Seiten jeweils acht Segmente und acht Pressbacken vorgesehen.In the embodiment according to Fig. 1 the respective clamping and Zentrierbackensegmente are designed as 30 ° segments and there are provided on both sides in each case eight segments and eight pressing jaws.

Der Schlauchpressvorgang läuft unter Hinweis auf die Fig. 2 und 3 wie folgt ab.The hose pressing process runs with reference to the Fig. 2 and 3 as follows.

Zunächst wird die Presshülse oder Pressarmatur 11 gegen die Klemm- und Zentrierbackensegmente in die Zuführungsöffnung 12 hineingedrückt, wobei unter Überwindung der Vorspannung die Segmente zurückgleiten, um dann die Presshülse oder Pressarmatur 11 wie in der Fig. 3, gegebenenfalls durch an der Hülse vorgesehene umlaufende Rücksprünge zu fixieren.First, the compression sleeve or press fitting 11 is pressed against the clamping and Zentrierbackensegmente in the feed opening 12, wherein overcoming the bias slide back the segments, then the compression sleeve or press fitting 11 as in the Fig. 3 , If necessary, to fix by provided on the sleeve circumferential recesses.

Weiterhin wird in die gegenüberliegende Zuführungsöffnung 12 die Hydraulikleitung 13 eingeschoben und über das freie, schlitzförmige Ende der Presshülse oder Pressarmatur 11 bewegt.
Das Ende der jeweiligen Hydraulikleitung 13 wird ebenfalls über die der entsprechenden Zuführungsöffnung 12 zugeordneten Klemm- und Zentrierbackensegmente 5 fixiert.Furthermore, the hydraulic line 13 is inserted into the opposite feed opening 12 and moved over the free, slot-shaped end of the compression sleeve or press fitting 11.
The end of the respective hydraulic line 13 is likewise fixed via the clamping and centering jaw segments 5 assigned to the corresponding feed opening 12.

In einem nächsten Schritt wird dann durch Zusammenfahren der Pressbacken 4 das eigentliche Verpressen vorgenommen, wobei ein sicherer Halt des Endes der Hydraulikleitung 13 durch eine dauerhafte Verformung im Sinne eines Krimpens der Presshülse 11 gewährleistet ist.In a next step, the actual pressing is then performed by moving the pressing jaws 4 together, wherein a secure hold of the end of the hydraulic line 13 is ensured by a permanent deformation in the sense of crimping the compression sleeve 11.

Claims (8)

  1. Hose press for producing individual hydraulic lines by means of press fittings or press sleeves (11), comprising a plurality of trapezoidal press jaws (4) which are movable toward each other, the longitudinal axes of which converge at a common center point which is located in the press chamber, driving means for producing a pressing force which acts on the press jaws and is transferred to the press fitting or press sleeve (11), as well as loading openings (12) for the press fittings or press sleeves (11) on the one hand and for the hydraulic line (13) on the other hand,
    characterized in that
    a preloaded trapezoidal clamping and centering jaw segment (5) is arranged on both sides of the press jaws (4), which is displaceable with respect to the longitudinal axes thereof against a limit stop, wherein the entirety of the clamping and centering jaw segments (5) form a conical centering and loading opening (12) and the inner diameter of the conical loading openings (12) is predefined in such a way that both the respective press fitting or press sleeve (11) and the respective end of the hydraulic line (13) to be connected to the fitting or sleeve (11) can be fixed in position until the press-connection step is carried out.
  2. Hose press according to claim 1,
    characterized in that
    the clamping and centering jaw segment (5) is movably connected to the respective press jaw (4) by a guide in a sliding manner.
  3. Hose press according to claim 1 or 2,
    characterized in that
    the end of the respective clamping and centering jaw segment (5) facing the loading opening (12) has the shape of a circular arc.
  4. Hose press according to one of the preceding claims,
    characterized in that
    blind hole bores (55) are incorporated in the respective clamping and centering jaw segments (5) to partially receive springs (6) to produce the preload, wherein the springs (6) are supported against a bearing part (3) which is connected to the associated press jaw (4).
  5. Hose press according to claim 4,
    characterized in that
    in or on the bearing part (3) means for adjusting the spring preload are arranged.
  6. Hose press according to claim 5,
    characterized in that
    the means are embodied as spring adjusting screws (1).
  7. Hose press according to one of the preceding claims,
    characterized in that
    the respective clamping and centering jaw segments (5) include a T-shaped groove (22) which extends in the longitudinal axis direction and into which a complementary T-shaped section (2) is engaged, wherein the section is connected to the associated press jaw (4).
  8. Hose press according to claim 7,
    characterized in that
    an oblong hole (23) is incorporated in the T-shaped section (2), into which a pin (10) is engaged, wherein the pin (10) is connected to the respective clamping and centering jaw segment (5) so as to limit the displacement path of the segment relative to the press jaw (4).
EP06116635A 2005-08-11 2006-07-05 Hose-press for producing individual hydraulic conduits Not-in-force EP1752233B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005037990A DE102005037990B4 (en) 2005-08-11 2005-08-11 Hose press device for the production of individual hydraulic lines

Publications (3)

Publication Number Publication Date
EP1752233A2 EP1752233A2 (en) 2007-02-14
EP1752233A3 EP1752233A3 (en) 2007-09-26
EP1752233B1 true EP1752233B1 (en) 2009-05-20

Family

ID=37395814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06116635A Not-in-force EP1752233B1 (en) 2005-08-11 2006-07-05 Hose-press for producing individual hydraulic conduits

Country Status (3)

Country Link
EP (1) EP1752233B1 (en)
AT (1) ATE431764T1 (en)
DE (2) DE102005037990B4 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1391353B1 (en) * 2008-10-06 2011-12-13 Promar S N C Di Buonamici M & C RADIAL PRESS FOR THE CONNECTION OF HIGH PRESSURE HYDRAULIC TUBES
MX2009012178A (en) * 2009-11-10 2011-05-23 Ind Regiomontana Quantron S A De C V Multipartite mechanical press for flanged connections with wedge-actuated movement mechanism.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3771343A (en) * 1972-03-24 1973-11-13 Mc Donnell Douglas Corp Swaging tool
US4244091A (en) * 1979-09-21 1981-01-13 The Gates Rubber Company Hose crimping apparatus
CA1207990A (en) * 1981-12-21 1986-07-22 Parker Hannifin Corporation Crimp locator
US5657656A (en) * 1995-12-29 1997-08-19 Aeroquip Corporation Automatic positioning system for a hose assembly and method therefor
DE19748623B4 (en) * 1997-11-04 2009-06-04 Henco Industries Nv compression joint
DE19940744B4 (en) * 1999-08-27 2008-11-06 Uniflex-Hydraulik Gmbh radial press
DE10047025C2 (en) * 2000-09-22 2002-11-21 Uniflex Hydraulik Gmbh radial press
DE20017791U1 (en) * 2000-10-17 2000-12-28 Uniflex Hydraulik Gmbh Press jaw set for a radial press

Also Published As

Publication number Publication date
EP1752233A3 (en) 2007-09-26
DE102005037990A1 (en) 2007-02-15
DE502006003762D1 (en) 2009-07-02
DE102005037990B4 (en) 2007-08-30
EP1752233A2 (en) 2007-02-14
ATE431764T1 (en) 2009-06-15

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