EP1862715B1 - Compression device - Google Patents

Compression device Download PDF

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Publication number
EP1862715B1
EP1862715B1 EP07405143A EP07405143A EP1862715B1 EP 1862715 B1 EP1862715 B1 EP 1862715B1 EP 07405143 A EP07405143 A EP 07405143A EP 07405143 A EP07405143 A EP 07405143A EP 1862715 B1 EP1862715 B1 EP 1862715B1
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EP
European Patent Office
Prior art keywords
pressure
compression device
pressed
engaging
parts
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EP07405143A
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German (de)
French (fr)
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EP1862715A1 (en
Inventor
Martin Brönnimann
David Gerber
Ernst Gerber
Peter Tester
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Rego Fix AG
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Rego Fix AG
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Publication of EP1862715A1 publication Critical patent/EP1862715A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02Hand 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
    • B25B27/10Hand 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04Application 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
    • B21D39/048Application 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 present invention relates to a pressing device for relative axial displacement of two coaxial with each other and only by means of high compression pressure against each other displaceable parts with the parts to be pressed coaxially comprehensive housing which in the closed state at least one coaxial annular engagement edge for engagement on one of the parts to be pressed , an axially displaceable inside the housing pressing plate having a coaxial annular engagement edge for engagement with the second part to be pressed and a number of annularly arranged pressure cylinders according to the preamble of claim 1.
  • Pressing operations of this kind are used, for example, in the pressing of pipe ends or shaft connections.
  • High compression pressures are required because the friction must be overcome by a tight fit and in many cases additional material deformation must be effected.
  • a typical example is the pressing and squeezing of collets or sleeves in corresponding tool or collet holder in machine tools.
  • the collets or sleeves with the tool shank used can not readily in the recording of the collet holder introduced and fixed with a clamping nut or vice versa removed after loosening the clamping nut, but must be pressed in with high pressure and again squeezed out.
  • This pressing in and out have disadvantages.
  • a pressing device that fulfills these tasks is in the CH-A-0862/03 described.
  • this known device is only suitable for one tool size, ie, different devices are required for different tool sizes.
  • Another problem with the known device is that the required pressing pressure is not readily adjustable.
  • the invention has for its object to provide a pressing device that can accommodate different tool or workpiece sizes and with each adjusted pressures or can press out.
  • a pressing device with the features of claim 1, which is characterized by an outer housing and insertable therein insert from at least partially separable shells, each having two fixed plates with engagement edges for engagement on one of the parts to be pressed and an axially movable pressure plate having an engagement edge for engagement with the second part to be pressed.
  • Fig. 1 shows the essential parts of a pressing device according to the invention, wherein details such as hinge, closure, hydraulic lines, etc. are omitted in this illustration for the sake of clarity.
  • An outer housing 1 consists of two mutually rotatable about a connecting axis shells 2, each consisting of an upper part 3 and a rigidly connected to this bottom part 4.
  • Each half-shell has a recess 5 in which a slot of a lower fixed plate 6, an upper fixed plate 7 and a displaceable between the two fixed plates pressing plate 8 is inserted.
  • the two slots in the half-shells together form a removable jaw assembly, which fully includes inserted tool or workpiece parts when the two half-shells of the housing are closed.
  • the inserts in the half-shells are therefore referred to as slide-in halves.
  • FIG. 2 shown representation of a half-shell 2 of the outer housing without insert it can be seen that the recess 5 has a semi-cylindrical shape.
  • Fig. 3 is an illustration of a half-shell 2 of the outer housing, in addition four print cylinders 9 are visible, which are arranged in the body of the half-shell above the recess.
  • each insert half consists, as mentioned, of two fixed plates 6, 7 and a pressing plate 8 displaceable therebetween by the pressure pistons 10.
  • the pressing plate 8 is pressed against the upper fixed plate 7, when the impression cylinders are not pressurized by the hydraulics.
  • the pressure pistons are in this initial or resting state in their uppermost position in which they flush with the top of the upper fixed plate 7, and with the upper wall of the recess 5 are. In this state, the insertion half can be removed from the recess.
  • the two fixed plates are interconnected by means of guide pins 20 through which the movable pressure plate is guided.
  • the insertion halves thus form a unit which can be inserted as a whole into the housing recess and can be removed from it.
  • the upper fixed plate 7 has an engaging edge 12 which engages for the expression of a collet from a holder in a corresponding groove or a shoulder of the collet holder.
  • the lower fixed plate 6 has a corresponding engaging edge 13 for engagement in the collet holder for the press-fitting operation.
  • the two engagement edges of the fixed plates are approximately rectangular in cross section, ie their flanks lie in planes perpendicular to the device axis.
  • the slidable press plate 8 has an engaging edge 14 for engaging a corresponding groove of a collet. This engaging edge 14 has conical flanks, in contrast to those of the fixed plates, because of the corresponding engagement surfaces of the collets.
  • Fig. 5 shown has the pressure plate 8 integrally formed bolts 15 which extend through corresponding holes 16 of the upper fixed plate 7 to the pressure piston.
  • the pressure plate 8 integrally formed bolts 15 which extend through corresponding holes 16 of the upper fixed plate 7 to the pressure piston.
  • the pressure plate 8 can also be missing at individual holes in the upper fixed plate 7 bolts, as in the case of the hole shown to the right.
  • Fig. 6 and 8th show used bolts in each case two holes visible in section and thus the arrangement for a higher pressure transmission to the press plate.
  • the Fig. 7 and 9 show a bolt only in each one of two holes and thus an arrangement for the transmission of lower pressure on the press plate.
  • Fig. 10 shows a further variant, as may be done differently depending on the pressure transfer.
  • the pressure pistons consist of an inner piston 18 and an outer piston 19 enclosing this coaxially, in the manner of a telescopic arrangement.
  • the piston can also be divided into several coaxial pistons to further subdivide the pressure transmission.
  • Fig. 11 With the above described and in Fig. 10 shown coaxial piston is possible to arrange per half shell only two impression cylinder, as shown in the plan view of Fig. 11 is shown.
  • the two impression cylinders are how Fig. 11 also shows, not uniformly distributed over the semicircle, that is arranged at an angle of 60 °, but moved closer to the parting plane between the two device halves. This ensures that the tilting effect is reduced during pressing.
  • FIGS. 12 and 13 also show the arrangement of the printing cylinder in uneven distribution.
  • the four stepped bolts of in Fig. 8 illustrated embodiment of a drawer half, as in Fig. 12 shown, moved to the dividing plane.
  • Fig. 13 shows an embodiment with six bolts 16 per drawer half, which are also shifted to the parting plane to reduce the tilting effect.
  • FIG. 17 various possibilities of controlling the printing cylinder are shown schematically.
  • the hydraulic pressure is generated by a hand pump 26 and directed to the two half-shells 2 of the device.
  • valves 27 are provided, which are opened when inserting a slot by the actuating pins 21 and getting closed. If both valves are closed, only the two middle pressure cylinders are pressurized and the lowest pressure level is generated on the pressure plate 8. If the left valve is open and the right closed, then in addition the upper pressure cylinder is pressurized and thus causes an increased pressure on the pressure plate 8. Finally, when both valves are open, all five pressure cylinders are active.
  • valve 27 In the lower half shell, a variant is shown in which only one valve 27 is provided. If this valve is closed, only the two middle pressure cylinder are pressurized and causes a lower pressure on the pressure plate. When the valve is opened by inserting a drawer, all pressure cylinders become active and the pressure plate is pressurized.
  • the hydraulic supply lines between the two half-shells of the device are integrated into the hinge 23 connecting them.
  • the hydraulic connection is shown on one of the two half-shells.
  • This hydraulic connection also serves as a hinge for the rotation of the device by 180 ° for the change between pressing and pressing.
  • a bearing 28 is provided in the hydraulic connection.
  • Fig. 15 shows two interlocking and connected by a bolt 24 blocks 25.
  • Fig. 16 Parts of the blocks are shown cut.
  • outwardly leading holes 28 are provided, which are closed at its outer end by a screw. They stand with the hydraulic supply lines to the pressure cylinders inside the housing halves in conjunction.

Description

Die vorliegende Erfindung betrifft eine Pressvorrichtung zur relativen axialen Verschiebung zweier koaxial zueinander angeordneter und nur mittels hohem Pressdruck gegeneinander verschiebbarer Teile mit einem die zu verpressenden Teile koaxial umfassenden Gehäuse, welches im geschlossenen Zustand mindestens eine koaxiale ringförmige Eingriffkante für den Eingriff an einem der zu pressenden Teile, eine im Inneren des Gehäuses axial verschiebbare Pressplatte mit einer koaxialen ringförmigen Eingriffkante für den Eingriff an dem zweiten zu pressenden Teil und einer Anzahl von ringförmig angeordneten Druckzylindern nach dem Oberbegriff des Anspruchs 1.The present invention relates to a pressing device for relative axial displacement of two coaxial with each other and only by means of high compression pressure against each other displaceable parts with the parts to be pressed coaxially comprehensive housing which in the closed state at least one coaxial annular engagement edge for engagement on one of the parts to be pressed , an axially displaceable inside the housing pressing plate having a coaxial annular engagement edge for engagement with the second part to be pressed and a number of annularly arranged pressure cylinders according to the preamble of claim 1.

Pressvorgänge dieser Art kommen beispielsweise beim Verpressen von Rohrenden oder Wellenverbindungen zur Anwendung. Hohe Pressdrücke werden benötigt, weil die Reibung einer engen Passung überwunden und in vielen Fällen eine zusätzliche Materialverformung bewirkt werden muss. Ein typisches Beispiel ist das Einpressen und Auspressen von Spannzangen oder -hülsen in entsprechende Werkzeug- bzw. Spannzangenhalter in Werkzeugmaschinen.Pressing operations of this kind are used, for example, in the pressing of pipe ends or shaft connections. High compression pressures are required because the friction must be overcome by a tight fit and in many cases additional material deformation must be effected. A typical example is the pressing and squeezing of collets or sleeves in corresponding tool or collet holder in machine tools.

Für bestimmte Ausführungsformen von Werkzeugaufnahmen, insbesondere solche mit geringer oder ohne Konizität von Spannzange und Aufnahme, wie sie für Maschinen mit sehr hohen Drehzahlen bevorzugt werden, können die Spannzangen oder -hülsen mit dem eingesetzten Werkzeugschaft nicht ohne weiteres in die Aufnahme des Spannzangenhalters eingeführt und mit einer Spannmutter fixiert oder umgekehrt nach Lösen der Spannmutter wieder entnommen werden, sondern müssen mit hohem Druck ein- und auch wieder ausgepresst werden. Für dieses Ein- und Auspressen gibt es verschiedene Lösungen, die aber mit Nachteilen behaftet sind.For certain embodiments of tool holders, in particular those with little or no taper of collet and recording, as they are preferred for machines with very high speeds, the collets or sleeves with the tool shank used can not readily in the recording of the collet holder introduced and fixed with a clamping nut or vice versa removed after loosening the clamping nut, but must be pressed in with high pressure and again squeezed out. There are various solutions for this pressing in and out, but they have disadvantages.

Eine Pressvorrichtung, die diese Aufgaben erfüllt ist in der CH-A-0862/03 beschrieben. Allerdings ist diese bekannte Vorrichtung jeweils nur für eine Werkzeuggrösse geeignet, d.h. für unterschiedliche Werkzeuggrössen sind mehrere Vorrichtungen nötig. Ein weiteres Problem bei der bekannten Vorrichtung besteht darin, dass der erforderliche Pressdruck nicht ohne weiteres einstellbar ist.A pressing device that fulfills these tasks is in the CH-A-0862/03 described. However, this known device is only suitable for one tool size, ie, different devices are required for different tool sizes. Another problem with the known device is that the required pressing pressure is not readily adjustable.

Der Erfindung liegt die Aufgabe zugrunde, eine Pressvorrichtung zu schaffen, die unterschiedliche Werkzeug- oder Werkstückgrössen aufnehmen kann und mit jeweils angepassten Drücken ein- oder auspressen kann.The invention has for its object to provide a pressing device that can accommodate different tool or workpiece sizes and with each adjusted pressures or can press out.

Erfindungsgemäss wird diese Aufgabe gelöst durch eine Pressvorrichtung mit den Merkmalen des Anspruchs 1, die sich auszeichnet durch ein äusseres Gehäuse und einen in dieses einsetzbaren Einschub aus mindestens teilweise trennbaren Schalen, die jeweils zwei feste Platten mit Eingriffkanten für den Eingriff an einem der zu pressenden Teile und eine axial bewegliche Pressplatte mit einer Eingriffkante für den Eingriff an dem zweiten zu pressenden Teil umfassen.According to the invention this object is achieved by a pressing device with the features of claim 1, which is characterized by an outer housing and insertable therein insert from at least partially separable shells, each having two fixed plates with engagement edges for engagement on one of the parts to be pressed and an axially movable pressure plate having an engagement edge for engagement with the second part to be pressed.

Im folgenden wird anhand der beiliegenden Zeichnungen eine Ein- und Auspressvorrichtung für Flachkonus-Spannzangen als bevorzugte Ausführungsform der Erfindung beschrieben. Es zeigen

Fig. 1
eine perspektivische Darstellung einer Pressvorrichtung im geöffneten Zustand
Fig. 2
eine entsprechende Darstellung des äusseren Gehäuses einer Pressvorrichtung ohne eingesetzten Einschub
Fig. 3
eine entsprechende Darstellung des äusseren Gehäuses einer Pressvorrichtung ohne eingesetzten Einschub mit einer Darstellung der Anordnung von Druckzylindern
Fig. 4
eine perspektivische Darstellung einer bevorzugten Ausführungsform eines Einschubs, teilweise im Schnitt
Fig. 5
die in Fig. 4 gezeigte Ausführungsform aus einer anderen Richtung und anders geschnitten
Fig. 6
die in Fig. 4 gezeigte Ausführungsform für hohen Pressdruck
Fig. 7
die in Fig. 4 gezeigte Ausführungsform für niedrigen Pressdruck
Fig. 8
eine andere bevorzugte Ausführungsform eines Einschubs
Fig. 9
die in Fig. 8 gezeigte Ausführungsform für niedrigeren Pressdruck
Fig. 10
eine weitere bevorzugte Ausführungsform eines Einschubs
Fig. 11
eine Draufsicht auf die Anordnung gemäss Fig. 10
Fig. 12
eine Draufsicht auf die Anordnung gemäss Fig. 4
Fig. 13
eine Draufsicht auf eine alternative Ausführungsform
Fig. 14
eine Draufsicht auf die Pressvorrichtung mit der Hydraulikzuführung im Schnitt
Fig. 15
eine perspektivische Ansicht des Scharniers des äusseren Gehäuses
Fig. 16
das in Fig. 15 gezeigte Scharnier teilweise geschnitten
Fig. 17
ein Zuleitungsschema zu den Druckzylindern
Fig. 18, 19
weitere Möglichkeiten der Pressdruckanpassung.
In the following, an input and Auspressvorrichtung for flat cone collets is described as a preferred embodiment of the invention with reference to the accompanying drawings. Show it
Fig. 1
a perspective view of a pressing device in the open state
Fig. 2
a corresponding representation of the outer housing of a pressing device without inserted slot
Fig. 3
a corresponding representation of the outer housing of a pressing device without inserted slot with a representation of the arrangement of printing cylinders
Fig. 4
a perspective view of a preferred embodiment of a drawer, partially in section
Fig. 5
in the Fig. 4 embodiment shown from a different direction and cut differently
Fig. 6
in the Fig. 4 shown embodiment for high pressure
Fig. 7
in the Fig. 4 shown embodiment for low compression pressure
Fig. 8
another preferred embodiment of a drawer
Fig. 9
in the Fig. 8 shown embodiment for lower pressure
Fig. 10
Another preferred embodiment of a drawer
Fig. 11
a plan view of the arrangement according to Fig. 10
Fig. 12
a plan view of the arrangement according to Fig. 4
Fig. 13
a plan view of an alternative embodiment
Fig. 14
a plan view of the pressing device with the hydraulic supply in section
Fig. 15
a perspective view of the hinge of the outer housing
Fig. 16
this in Fig. 15 Partially cut hinge
Fig. 17
a supply scheme to the pressure cylinders
Fig. 18, 19
other possibilities of pressing pressure adjustment.

Fig. 1 zeigt die wesentlichen Teile einer Pressvorrichtung nach der Erfindung, wobei Einzelheiten wie Scharnier, Verschluss, Hydraulikleitungen etc. in dieser Darstellung der Übersicht halber weggelassen sind. Ein äusseres Gehäuse 1 besteht aus zwei gegeneinander um eine Verbindungsachse drehbare Halbschalen 2, die jeweils aus einem Oberteil 3 und einer starr mit diesem verbundenen Bodenteil 4 bestehen. Jede Halbschale weist eine Ausnehmung 5 auf, in welcher ein Einschub aus einer unteren festen Platte 6, einer oberen festen Platte 7 und einer zwischen den beiden festen Platten verschiebbaren Pressplatte 8 eingesetzt ist. Die beiden Einschübe in den Halbschalen bilden zusammen eine Wechselbackenanordnung, welche eingesetzte Werkzeug- oder Werkstückteile vollständig umfasst, wenn die beiden Halbschalen des Gehäuses geschlossen sind. In der folgenden Beschreibung werden die Einschübe in den Halbschalen deshalb als Einschubhälften bezeichnet. Fig. 1 shows the essential parts of a pressing device according to the invention, wherein details such as hinge, closure, hydraulic lines, etc. are omitted in this illustration for the sake of clarity. An outer housing 1 consists of two mutually rotatable about a connecting axis shells 2, each consisting of an upper part 3 and a rigidly connected to this bottom part 4. Each half-shell has a recess 5 in which a slot of a lower fixed plate 6, an upper fixed plate 7 and a displaceable between the two fixed plates pressing plate 8 is inserted. The two slots in the half-shells together form a removable jaw assembly, which fully includes inserted tool or workpiece parts when the two half-shells of the housing are closed. In the following description, the inserts in the half-shells are therefore referred to as slide-in halves.

Aus der in Fig. 2 gezeigten Darstellung einer Halbschale 2 des äusseren Gehäuses ohne Einschub ist ersichtlich, dass die Ausnehmung 5 eine halbzylindrische Form besitzt. Fig. 3 ist eine Darstellung einer Halbschale 2 des äusseren Gehäuses, in der zusätzlich noch vier Druckzylinder 9 sichtbar sind, die im Körper der Halbschale oberhalb der Ausnehmung angeordnet sind.From the in Fig. 2 shown representation of a half-shell 2 of the outer housing without insert it can be seen that the recess 5 has a semi-cylindrical shape. Fig. 3 is an illustration of a half-shell 2 of the outer housing, in addition four print cylinders 9 are visible, which are arranged in the body of the half-shell above the recess.

In den folgenden Darstellungen der Fig. 4-10 sind jeweils eine Einschubhälfte und die Kolben 10 der oberhalb im äusseren Gehäuse angeordneten Druckzylinder 9 gezeigt. Jede Einschubhälfte besteht, wie erwähnt, aus zwei festen Platten 6,7 und einer durch die Druckkolben 10 dazwischen verschiebbaren Pressplatte 8. Durch Rückstellfedern 11 zwischen der unteren festen Platte 6 und der Pressplatte 8 wird die Pressplatte 8 gegen die obere feste Platte 7 gedrückt, wenn die Druckzylinder nicht durch die Hydraulik mit Druck beaufschlagt sind. Die Druckkolben befinden sich in diesem Ausgangs- oder Ruhezustand in ihrer obersten Position, in der sie mit der Oberseite der oberen festen Platte 7, bzw. mit der oberen Wand der Ausnehmung 5 bündig sind. In diesem Zustand kann die Einschubhälfte aus der Ausnehmung entnommen werden.In the following representations of the Fig. 4-10 In each case one insertion half and the pistons 10 of the printing cylinder 9 arranged above in the outer housing are shown. Each insert half consists, as mentioned, of two fixed plates 6, 7 and a pressing plate 8 displaceable therebetween by the pressure pistons 10. By return springs 11 between the lower fixed plate 6 and the pressing plate 8, the pressing plate 8 is pressed against the upper fixed plate 7, when the impression cylinders are not pressurized by the hydraulics. The pressure pistons are in this initial or resting state in their uppermost position in which they flush with the top of the upper fixed plate 7, and with the upper wall of the recess 5 are. In this state, the insertion half can be removed from the recess.

Die beiden festen Platten sind untereinander mittels Führungsstiften 20 miteinander verbunden, durch welche die bewegliche Pressplatte geführt wird. Die Einschubhälften bilden somit eine als Ganzes in die Gehäuseausnehmung einsetzbare und aus ihr entnehmbare Einheit.The two fixed plates are interconnected by means of guide pins 20 through which the movable pressure plate is guided. The insertion halves thus form a unit which can be inserted as a whole into the housing recess and can be removed from it.

Wie Fig. 4 zeigt, besitzt die obere feste Platte 7 eine Eingriffkante 12, die für das Auspressen einer Spannzange aus einem Halter in eine entsprechende Nut oder einen Absatz des Spannzangenhalters eingreift. Die untere feste Platte 6 besitzt eine entsprechende Eingriffkante 13 für den Eingriff in den Spannzangenhalter für den Einpressvorgang. Die beiden Eingriffkanten der festen Platten sind im Querschnitt etwa rechteckig geformt, d.h. ihre Flanken liegen in zur Vorrichtungsachse senkrechten Ebenen. Die verschiebbare Pressplatte 8 besitzt eine Eingriffkante 14 für den Eingriff in eine entsprechende Nut einer Spannzange. Diese Eingriffkante 14 besitzt wegen der entsprechenden Eingriffsflächen der Spannzangen im Unterschied zu denjenigen der festen Platten konische Flanken.As Fig. 4 shows, the upper fixed plate 7 has an engaging edge 12 which engages for the expression of a collet from a holder in a corresponding groove or a shoulder of the collet holder. The lower fixed plate 6 has a corresponding engaging edge 13 for engagement in the collet holder for the press-fitting operation. The two engagement edges of the fixed plates are approximately rectangular in cross section, ie their flanks lie in planes perpendicular to the device axis. The slidable press plate 8 has an engaging edge 14 for engaging a corresponding groove of a collet. This engaging edge 14 has conical flanks, in contrast to those of the fixed plates, because of the corresponding engagement surfaces of the collets.

Wie in Fig. 5 gezeigt besitzt die Pressplatte 8 einstückig angeformte Bolzen 15, die sich durch entsprechende Bohrungen 16 der oberen festen Platte 7 bis zu den Druckkolben erstrecken. Je nach dem auszuübenden Druck auf die Pressplatte können bei einzelnen Bohrungen in der oberen festen Platte 7 auch Bolzen fehlen, wie im Fall der rechts daneben gezeigten Bohrung.As in Fig. 5 shown has the pressure plate 8 integrally formed bolts 15 which extend through corresponding holes 16 of the upper fixed plate 7 to the pressure piston. Depending on the pressure to be exerted on the press plate can also be missing at individual holes in the upper fixed plate 7 bolts, as in the case of the hole shown to the right.

Anstelle der einstückig an der Pressplatte angeformten Bolzen 15 können, wie in den Fig. 6 und 7 gezeigt, eingedrehte, oder gemäss Fig. 8-10 mit einem Absatz versehene Bolzen 17 in die Bohrungen der oberen Platte eingesetzt sein. Die Fig. 6 und 8 zeigen eingesetzte Bolzen in jeweils beiden im Schnitt sichtbaren Bohrungen und damit die Anordnung für eine höhere Druckübertragung auf die Pressplatte. Die Fig. 7 und 9 hingegen zeigen einen Bolzen nur in jeweils einer von zwei Bohrungen und damit eine Anordnung zur Übertragung von niedrigerem Druck auf die Pressplatte.Instead of integrally formed on the press plate bolt 15, as in the 6 and 7 shown, screwed in, or according to Fig. 8-10 provided with a shoulder bolt 17 may be inserted into the holes of the upper plate. The Fig. 6 and 8th show used bolts in each case two holes visible in section and thus the arrangement for a higher pressure transmission to the press plate. The Fig. 7 and 9 however, show a bolt only in each one of two holes and thus an arrangement for the transmission of lower pressure on the press plate.

Fig. 10 zeigt eine weitere Variante, wie je nach Bedarf die Druckübertragung unterschiedlich erfolgen kann. Die Druckkolben bestehen aus einem inneren Kolben 18 und einem diesen koaxial umschliessenden äusseren Kolben 19, in der Art einer teleskopischen Anordnung. Je nachdem, ob der den zur Pressplatte führende Bolzen dem Durchmesser des inneren oder des äusseren Kolbens entspricht, wird entweder der ganze oder nur ein Teil des im Zylinder aufgebauten Drucks auf die Pressplatte übertragen. Anstatt in zwei kann der Kolben auch in mehrere koaxiale Kolben aufgeteilt werden, um die Druckübertragung noch weiter zu unterteilen. Fig. 10 shows a further variant, as may be done differently depending on the pressure transfer. The pressure pistons consist of an inner piston 18 and an outer piston 19 enclosing this coaxially, in the manner of a telescopic arrangement. Depending on whether the bolt leading to the press plate corresponds to the diameter of the inner or the outer piston, either all or only part of the pressure built up in the cylinder is transferred to the press plate. Instead of in two, the piston can also be divided into several coaxial pistons to further subdivide the pressure transmission.

Mit den vorstehend beschriebenen und in Fig. 10 gezeigten Koaxialkolben besteht die Möglichkeit, pro Halbschale nur zwei Druckzylinder anzuordnen, wie dies in der Draufsicht der Fig. 11 gezeigt ist. Die beiden Druckzylinder sind, wie Fig. 11 ebenfalls zeigt, nicht gleichmässig über den Halbkreis verteilt, also unter einem Winkel von 60°, angeordnet, sondern näher zur Trennebene zwischen den beiden Vorrichtungshälften verschoben. Dadurch wird erreicht, dass die Kippwirkung beim Pressen verringert wird.With the above described and in Fig. 10 shown coaxial piston is possible to arrange per half shell only two impression cylinder, as shown in the plan view of Fig. 11 is shown. The two impression cylinders are how Fig. 11 also shows, not uniformly distributed over the semicircle, that is arranged at an angle of 60 °, but moved closer to the parting plane between the two device halves. This ensures that the tilting effect is reduced during pressing.

Die Fig. 12 und 13 zeigen ebenfalls die Anordnung der Druckzylinder in ungleichmässiger Verteilung. Die vier abgesetzten Bolzen der in Fig. 8 dargestellten Ausführungsform einer Einschubhälfte sind, wie in Fig. 12 gezeigt, zur Trennebene hin verschoben. Fig. 13 zeigt eine Ausführungsform mit sechs Bolzen 16 pro Einschubhälfte, die ebenfalls zur Trennebene hin verschoben sind, um die Kippwirkung zu verringern.The FIGS. 12 and 13 also show the arrangement of the printing cylinder in uneven distribution. The four stepped bolts of in Fig. 8 illustrated embodiment of a drawer half, as in Fig. 12 shown, moved to the dividing plane. Fig. 13 shows an embodiment with six bolts 16 per drawer half, which are also shifted to the parting plane to reduce the tilting effect.

Mit den beschriebenen Anordnungen ergeben sich, wie zum Teil schon erwähnt, verschiedene Möglichkeiten, den Pressdruck zu variieren. Es können einer oder mehrere Bolzen fehlen und somit die entsprechenden Kolben ins Leere drücken. Alternativ können, wie in Fig. 18 gezeigt, in der oberen festen Platte entsprechende Bohrungen fehlen. Dadurch drücken die entsprechenden Kolben auf die feste Platte anstatt auf die Pressplatte. Oder es können, wie in Fig. 19 gezeigt, Bohrungen auch in der Pressplatte vorgesehen sein, so dass die Kolben auf die untere feste Platte anstatt auf die Pressplatte drücken.With the arrangements described arise, as already mentioned in part, various ways to vary the pressing pressure. One or more bolts may be missing, thus forcing the corresponding pistons into space. Alternatively, as in Fig. 18 shown, in the upper fixed plate corresponding holes are missing. As a result, the corresponding pistons press on the solid plate instead of on the pressure plate. Or it can, as in Fig. 19 Holes should also be provided in the pressure plate so that the pistons press on the lower solid plate instead of on the pressure plate.

Eine andere Möglichkeit besteht darin, mittels Betätigungsstiften 21 beim Einsetzen der jeweiligen Einschubhälfte Steuerventile in den Hydraulikzuleitungen zu schliessen und dadurch einzelnen Druckzylinder auszuschalten. In Fig. 17 sind verschiedene Möglichkeiten der Steuerung der Druckzylinder schematisch dargestellt. Der Hydraulikdruck wird mit einer Handpumpe 26 erzeugt und zu den beiden Halbschalen 2 der Vorrichtung geleitet.Another possibility is to close by means of actuating pins 21 at the onset of the respective insertion half control valves in the hydraulic supply lines and thereby turn off individual pressure cylinder. In Fig. 17 various possibilities of controlling the printing cylinder are shown schematically. The hydraulic pressure is generated by a hand pump 26 and directed to the two half-shells 2 of the device.

In der oberen Halbschale ist eine Variante gezeigt, bei der zwei Ventile 27 vorgesehen sind, welche beim Einsetzen eines Einschubs durch die Betätigungsstifte 21 geöffnet bzw. geschlossen werden. Sind beide Ventile geschlossen, werden nur die beiden mittleren Druckzylinder mit Druck beaufschlagt und die niedrigste Druckstufe auf die Pressplatte 8 erzeugt. Ist das linke Ventil geöffnet und das rechte geschlossen, so wird zusätzlich der obere Druckzylinder mit Druck beaufschlagt und somit ein erhöhter Druck auf die Pressplatte 8 bewirkt. Sind schliesslich beide Ventile geöffnet, so sind alle fünf Druckzylinder aktiv.In the upper half-shell, a variant is shown in which two valves 27 are provided, which are opened when inserting a slot by the actuating pins 21 and getting closed. If both valves are closed, only the two middle pressure cylinders are pressurized and the lowest pressure level is generated on the pressure plate 8. If the left valve is open and the right closed, then in addition the upper pressure cylinder is pressurized and thus causes an increased pressure on the pressure plate 8. Finally, when both valves are open, all five pressure cylinders are active.

In der unteren Halbschale ist eine Variante gezeigt, bei der nur ein Ventil 27 vorgesehen ist. Ist dieses Ventil geschlossen, so werden nur die beiden mittleren Druckzylinder mit Druck beaufschlagt und ein geringerer druck auf die Pressplatte bewirkt. Wenn das Ventil durch das Einsetzen eines Einschubs geöffnet wird, werden alle Druckzylinder aktiv und die Pressplatte mit höherem Druck versehen.In the lower half shell, a variant is shown in which only one valve 27 is provided. If this valve is closed, only the two middle pressure cylinder are pressurized and causes a lower pressure on the pressure plate. When the valve is opened by inserting a drawer, all pressure cylinders become active and the pressure plate is pressurized.

Um die Gefahr eines Bruchs eines Ölschlauchs zu vermeiden, sind die Hydraulikzuleitungen zwischen den beiden Halbschalen der Vorrichtung in das sie verbindende Scharnier 23 integriert. In Fig. 14 ist der Hydraulikanschluss an einer der beiden Halbschalen gezeigt. Dieser Hydraulikanschluss dient gleichzeitig als Drehgelenk für die Drehung der Vorrichtung um 180° für den Wechsel zwischen Ein- und Auspressen. Zu diesem Zweck ist im Hydraulikanschluss ein Lager 28 vorgesehen.In order to avoid the risk of breakage of an oil hose, the hydraulic supply lines between the two half-shells of the device are integrated into the hinge 23 connecting them. In Fig. 14 the hydraulic connection is shown on one of the two half-shells. This hydraulic connection also serves as a hinge for the rotation of the device by 180 ° for the change between pressing and pressing. For this purpose, a bearing 28 is provided in the hydraulic connection.

Das Scharnier 23 besteht, wie Fig. 15 zeigt aus zwei ineinander greifende und durch einen Bolzen 24 verbundene Blöcke 25. In Fig. 16 sind Teile der Blöcke geschnitten gezeigt. In den Blöcken sind vom Bolzen 24 nach aussen führende Bohrungen 28 vorgesehen, die an ihrem äusseren Ende durch eine Schraube verschlossen sind. Sie stehen mit den Hydraulikzuleitungen zu den Druckzylindern im Inneren der Gehäusehälften in Verbindung. Die Verbindung zwischen den beiden Bohrungen in den beiden Blöcken 25 erfolgt über eine nach aussen abgedichtete Ausnehmung 29 im Verbindungsbolzen 24.The hinge 23 is how Fig. 15 shows two interlocking and connected by a bolt 24 blocks 25. In Fig. 16 Parts of the blocks are shown cut. In the blocks of the bolt 24 outwardly leading holes 28 are provided, which are closed at its outer end by a screw. They stand with the hydraulic supply lines to the pressure cylinders inside the housing halves in conjunction. The connection between the two holes in the two blocks 25 via an outwardly sealed recess 29 in the connecting pin 24th

Claims (6)

  1. Compression device for the relative axial displacement of two parts arranged coaxially relative to one another and displaceable towards one another only by means of high pressure, comprising a housing (1) which coaxially encompasses the parts to be pressed and, in the closed state, has at least one coaxial annular engaging edge for engaging one of the parts to be pressed, a press plate (8) axially displaceable in the interior of the housing and having a coaxial annular engaging edge for engaging the second part to be pressed and a number of pressure cylinders (9) arranged in an annular manner, characterized by an outer housing (1) hinged along an axial plane and insert halves (6, 7, 8) which can be inserted into said housing and comprise in each case two fixed plates (6, 7) having engaging edges (12, 13) for engaging one of the parts to be pressed and an axially movable press plate (8) having an engaging edge (14) for placing against the second part to be pressed.
  2. Compression device according to Claim 1, characterized in that pairs of insert halves of different size are provided for pressing parts of different size.
  3. Compression device according to Claim 1, characterized in that the action of the pressure cylinders (9) is automatically and selectively controlled for generating different pressures.
  4. Compression device according to Claim 3, characterized in that valves (27) which are actuated on insertion of the insert halves are provided for selective control of the pressure cylinders (9).
  5. Compression device according to Claim 3, characterized in that pressure transmission elements (17) to the press plate (8) are lacking in the case of individual inserts.
  6. Compression device according to Claim 1, characterized in that the distribution of the pressure cylinders (9) is nonuniform and is shifted towards the parting plane between the half-shells.
EP07405143A 2006-06-02 2007-05-18 Compression device Active EP1862715B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH8962006 2006-06-02

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EP1862715A1 EP1862715A1 (en) 2007-12-05
EP1862715B1 true EP1862715B1 (en) 2009-07-15

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EP07405143A Active EP1862715B1 (en) 2006-06-02 2007-05-18 Compression device

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US (1) US20070281528A1 (en)
EP (1) EP1862715B1 (en)
JP (1) JP2007319935A (en)
CN (1) CN101081443A (en)
DE (1) DE502007001053D1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH702687B1 (en) * 2008-03-25 2011-08-31 Rego Fix Ag Pressing device.
DE102012105655A1 (en) 2012-06-28 2014-01-02 Viega Gmbh & Co. Kg Press jaw and method for producing a permanent pipe connection and system of a pressing jaw and a fitting
CH707389A2 (en) * 2012-12-28 2014-06-30 Fipe Ag Tool for axial pressing of fittings.
CN107571195A (en) * 2017-09-20 2018-01-12 重庆佳岳机械制造有限公司 A kind of steel ball type synchronizer frock
EP3473384A1 (en) * 2017-10-20 2019-04-24 Haelok AG Mounting device for creating a press-fitting connection between a fitting kit and a pipe section

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1818435A (en) * 1929-02-20 1931-08-11 Frank H Smith Apparatus for joining pipes
GB2240599A (en) * 1989-09-29 1991-08-07 Welsh Water Plc Apparatus and fitting for coupling plastics pipes
DE9406748U1 (en) * 1994-04-22 1994-06-16 Knipping Daniel Force application device
CH696160A5 (en) * 2003-05-15 2007-01-31 Rego Fix Ag Pressing device.

Also Published As

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EP1862715A1 (en) 2007-12-05
DE502007001053D1 (en) 2009-08-27
JP2007319935A (en) 2007-12-13
US20070281528A1 (en) 2007-12-06
CN101081443A (en) 2007-12-05

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