EP0671985A1 - Pressing tool. - Google Patents

Pressing tool.

Info

Publication number
EP0671985A1
EP0671985A1 EP94901870A EP94901870A EP0671985A1 EP 0671985 A1 EP0671985 A1 EP 0671985A1 EP 94901870 A EP94901870 A EP 94901870A EP 94901870 A EP94901870 A EP 94901870A EP 0671985 A1 EP0671985 A1 EP 0671985A1
Authority
EP
European Patent Office
Prior art keywords
press
pressing
groove
pipe end
jaws
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.)
Granted
Application number
EP94901870A
Other languages
German (de)
French (fr)
Other versions
EP0671985B1 (en
Inventor
Helmut Dischler
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.)
Novopress GmbH Pressen und Presswerkzeuge and Co KG
Original Assignee
Novopress GmbH Pressen und Presswerkzeuge and Co KG
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 Novopress GmbH Pressen und Presswerkzeuge and Co KG filed Critical Novopress GmbH Pressen und Presswerkzeuge and Co KG
Publication of EP0671985A1 publication Critical patent/EP0671985A1/en
Application granted granted Critical
Publication of EP0671985B1 publication Critical patent/EP0671985B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5367—Coupling to conduit

Definitions

  • the invention relates to a pressing tool for pressing tubular, nested workpieces, in particular a pipe end and a press fitting, with a plurality of press jaw elements which carry press jaws, into which a press groove running on the inside in the circumferential direction is formed.
  • press tools have been developed for the radial pressing of press fitting and pipe end. These pressing tools have pressing jaw elements which have pressing jaws which are moved radially during the pressing to form a closed pressing space. Not only are press tools known with two press jaws (DE-A-34 23 283; DE-A-38 33 748), but also with more than two press jaws in order to be able to achieve higher press-in depths. The latter pressing tools can be found in particular in EP-A-0 451 806. Of particular interest are the pressing tools shown in Figures (7) and (8), since they are suitable for connecting pipe ends of larger and very large diameters.
  • the pressing jaws of such pressing tools have a specific cross-sectional contour on the inside which is adapted to the shape of the press fitting. Since such press fittings have an outwardly projecting annular bead at the free end, into which a sealing ring is inserted on the inside, the press jaw has a molded-in press groove for receiving this annular bead. The individual sections of the press groove in the press jaws complement each other to form a continuous press groove.
  • press ridges run on both sides of the press groove, which press into the material of the press fitting and thus also of the inserted pipe end during the pressing process.
  • press bars on both sides of the press groove is not absolutely necessary for the functioning of the pressing.
  • the handling is foolproof if the cross-section of the press jaws is symmetrical, that is to say the press ridges run on both sides of the press groove, since it does not matter in which position the press tool is placed at the point to be pressed.
  • This object is achieved in that a pressing web runs along only one side of the press groove and a jig is arranged on the other side, which fits over the inserted workpiece, but not over the pushed-on workpiece.
  • the additional arrangement of a gauge prevents the press tool from being placed on the press point in the wrong position, in which the press web comes to rest on the side of the annular bead facing the free end of the press fitting, because in this position the gauge prevents it from touching down, because they don't have that Press fitting fits. Only in the reverse position, in which the gauge comes to lie outside the press fitting, is it possible to put the press tool on.
  • the teaching consists in a particularly simple design of a correspondingly shaped sheet metal part which is attached to one of the press jaw elements.
  • Figure (1) the press ring of a press tool in the open state
  • Figure (3) shows a section through the coupling member of the
  • Figure (6) the press ring with pipe end and press fitting in an axial section in the attached state.
  • the press ring (5) has press jaw elements (6, 7,
  • each pressing jaw element (6, 7, 8, 9, 10) consisting of an external pressing jaw carrier (11, 12, 13, 14, 15) and an internal, arcuate pressing jaw (16, 17, 18th , 19, 20).
  • the press jaw carriers are connected to one another via intermediate pieces (21, 22, 23, 24), the press jaw carriers (11, 12, 13,
  • At least one hinge pin (26, 27, 28, 29, 30, 31, 32, 33) per intermediate piece (21, 22, 23, 24) is designed to be removable, so that the press ring (5) is divided into individual press jaw elements (6, 7, 8, 9, 10) can be taken apart or assembled on site.
  • the press jaws (16, 17, 18, 19, 20) are mounted in the press jaw carriers (11, 12, 13, 14, 15) so as to be displaceable in the circumferential direction.
  • a clamping device (34, 35, 36, 37, 38) is attached to each press jaw support (11, 12, 13, 14, 15), which has a clamping punch (39, 40, 41, 42, 43).
  • the clamping devices (34, 35, 36, 37, 38) also serve to axially guide the press jaws (16, 17, 18, 19, 20).
  • the hinge pins (29, 30) on the central press jaw support (13) carry a jaw-like gauge (44) in the form of a sheet metal part with a semicircular recess (45), the radius of the recess (45) being such that the gauge (44 ) fits on the one hand over the pipe end (1), but on the other hand does not fit over the cylindrical part of the press fitting (2) adjoining the annular bead (3).
  • the lower press jaw elements (6, 10) have a closing gap (46) between them in the positions shown in FIGS. (1) and (2). In the figures (1) it is so large that the press ring (5) can be put over the press fitting (2) and pipe end (1).
  • the free ends of the pressing jaw elements (6, 10) delimiting the closing gap (46) carry hinge pins (47, 48), a coupling bracket (49, 50) being suspended from each hinge pin (47, 48).
  • the shape of the coupling straps (49, 50) and their connection with the hinge pins (47, 48) result in particular from the sectional view according to FIGS. (3) and (4).
  • the free ends of the coupling tabs (49, 50) have through openings (51, 52).
  • a coupling pin (53) is inserted axially. It has a first bolt section
  • One end of the first pin section (54) is with a hand lever
  • a second pin section (56) is formed on the other end of the first pin section (54), the axis of which is offset by an eccentricity (57) with respect to the axis of the first pin section (54).
  • the second pin section (56) fits into the through hole (52) ) of the other coupling plate (50)
  • the coupling plates (49, 50) together with the coupling pin (53) form a coupling element for the temporary connection of the ends of the pressing ring (5) before the actual pressing process.
  • the pressing jaws (16, 17, 18, 19, 20) are not only guided axially by the clamping devices (34, 35, 36, 37, 38), but also by the other side of the press jaw carrier (11, 12, 13, 14, 15) screwed on guide plates (62).
  • the press jaws (16, 17, 18, 19, 20) themselves have an asymmetrical cross-sectional contour. They have an annular groove (63), the pressing grooves (63) of all pressing jaws (16, 17, 18, 19, 20) complementing one another to form a continuous circumferential annular groove.
  • the cross section of the press groove (63) is adapted to the annular bead (3), which carries a sealing ring (64) on the inside.
  • a pressing web (65) runs along one side of the annular groove (63). It also complements the press bars of the other press jaws (16, 17, 19, 20) to form a continuous circumferential press bar.
  • the press web (65) is intended to dig into the material of the press fitting (2) during the pressing process and also to bend the pipe end (1). On the other side of the annular groove (63), such a press bar is not provided.
  • the opened press ring (5) is first placed over the pipe end (1) and the press fitting (2), as can be seen from the figures (1) and (6).
  • the two lower press jaw elements (6, 10) are pivoted towards each other and onto the pipe end (1), so that they correspond to those shown in Figure (2 ) assume the position shown.
  • the coupling lugs (49, 50) which then still hang down and are shown in dash-dot lines in this position in FIG.
  • the coupling bolt (53) is in such a position that its second bolt section (56) does not protrude through the through bore (51), which is indicated in FIG. (3) by the position of the hand lever (55) shown in dotted lines.
  • the coupling tabs (49, 50) are pivoted into a position where they overlap and the through holes (51, 52) merge into one another.
  • the Coupling bolt (53) and thus the hand lever (55) are in such a position that the second bolt section (56) is offset in the direction of the other coupling plate (50) and therefore easily in the through bore (52) by axial displacement of the Grip the coupling bolt (53) so that both coupling straps (49, 50) can couple.
  • the press ring (5) still has a certain amount of slack.
  • the hand lever (55) is then pivoted from the position shown in solid lines in Figure (2) to the dash-dotted position in the direction of arrow E by 180 °.
  • the second pin section (56) executes an eccentric movement and thereby shortens the distance between the two hinge pins (47, 48) by twice the eccentricity (57).
  • Figures (3) and (4) with Figure (4) showing the pivoted position.
  • a circumferential force is impressed on the press ring (5), via which the press jaws (16, 17, 18, 19, 20) press onto the press fitting (2) with a certain radial prestress.
  • the press ring (5) then has a seat that is difficult or impossible to turn. This effect is supported by the clamping rams (39, 40, 41, 42, 43), which then rest against the pipe end (1) with a likewise radially directed prestress.
  • a locking device belonging to the pressing tool (4) is used, as is known schematically from FIG. (7) of EP-A-0 451 806.
  • This locking device has two pincer-shaped lever arms with which the locking device can be attached to the hinge pins (47, 48). They cover gaps (58, 59) and (60, 61) and then lay on the outside of the hinge pin (47, 48). The pliers-like lever arms are then moved together by means of a hydraulic motor belonging to the locking device, so that the hinge pins (47, 48) approach each other.
  • the pressing ring (5) assumes the position shown in FIG. (5). After the coupling bolt (53) has been axially displaced in such a way that the second bolt section (56) moves out of the through bore (52), the press ring (5) can be removed again and used for further pressing operations.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Automatic Assembly (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Jigs For Machine Tools (AREA)
  • Press Drives And Press Lines (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Fats And Perfumes (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Preventing Corrosion Or Incrustation Of Metals (AREA)
  • Finger-Pressure Massage (AREA)
  • Food-Manufacturing Devices (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Wire Bonding (AREA)

Abstract

A pressing tool for pressing tubular nested workpieces, in particular a pipe end upon which is slid a press fitting, has several pressing jaw elements which bear pressing jaws with a continuous circumferential pressing groove shaped in their inner side. In order to ensure mounting safety during pressing without affecting the tightness, a pressing land (65) extends along only one side of the pressing groove (63), and a template (44) which fits over the nested workpiece (1) but not over the slid-on workpiece (2) is arranged towards the other side of the groove.

Description

Beschreibung;Description;
PreßwerkzeugPress tool
Die Erfindung betrifft ein Preßwerkzeug zum Verpressen von rohrförmigen, ineinandergesteckten Werkstücken, insbesondere einem Rohrende und einem darübergestecktem Preßfitting, mit mehreren Preßbackenelementen, welche Preßbacken tragen, in die eine innenseitig jeweils in Umfangsrichtung verlaufende Preßnut eingeformt ist.The invention relates to a pressing tool for pressing tubular, nested workpieces, in particular a pipe end and a press fitting, with a plurality of press jaw elements which carry press jaws, into which a press groove running on the inside in the circumferential direction is formed.
Zur Verbindung von Rohrenden ist es bekannt, hülsenförmige Preßfittings zu verwenden, die plastisch verformbar sind und aus Metall, vorzugsweise aus Stahl bestehen. Solche Rohrverbindunen und die zugehörigen Preßfittings sind beispielsweise der DE-C-1 187 870 und der DE-C-40 12 504 zu entnehmen.To connect pipe ends, it is known to use sleeve-shaped press fittings which are plastically deformable and made of metal, preferably steel. Such pipe connections and the associated press fittings can be found, for example, in DE-C-1 187 870 and DE-C-40 12 504.
Für das radiale Zusammenpressen von Preßfitting und Rohrende sind verschiedenste Formen von Preßwerkzeugen entwickelt worden. Diese Preßwerkzeuge haben Preßbackenelemente, die Preßbacken aufweisen, welche beim Verpressen radial zur Bildung eines geschlossenen Preßraumes bewegt werden. Dabei sind nicht nur Preßwerkzeuge mit zwei Preßbacken bekannt (DE-A-34 23 283; DE-A-38 33 748), sondern auch mit mehr als zwei Preßbacken, um höhere Einpreßtiefen verwirklichen zu können. Letztere Preßwerkzeuge sind insbesondere der EP-A-0 451 806 zu entnehmen. Dabei sind von besonderem Interesse die in den Figuren (7) und (8) dargestellten Preßwerkzeuge, da sie sich für das Verbinden von Rohrenden größeren und sehr großen Durchmessers eignen. Wie der DE-A-38 33 748 zu entnehmen ist, haben die Preßbacken solcher Preßwerkzeuge innenseitig eine bestimmte, an die Form des Preßfittings angepaßte Querschnittskontur. Da solche Preßfittinge am freien Ende einen nach außen vorstehenden Ringwulst aufweisen, in den innenseitig ein Dichtring eingelegt ist, hat die Preßbacke eine eingeformte Preßnut zur Aufnahme dieses Ringwulsteε. Die einzelnen Abschnitte der Preßnut in den Preßbacken ergänzen sich zu einer über den Umfang durchgehenden Preßnut.Various forms of press tools have been developed for the radial pressing of press fitting and pipe end. These pressing tools have pressing jaw elements which have pressing jaws which are moved radially during the pressing to form a closed pressing space. Not only are press tools known with two press jaws (DE-A-34 23 283; DE-A-38 33 748), but also with more than two press jaws in order to be able to achieve higher press-in depths. The latter pressing tools can be found in particular in EP-A-0 451 806. Of particular interest are the pressing tools shown in Figures (7) and (8), since they are suitable for connecting pipe ends of larger and very large diameters. As can be seen from DE-A-38 33 748, the pressing jaws of such pressing tools have a specific cross-sectional contour on the inside which is adapted to the shape of the press fitting. Since such press fittings have an outwardly projecting annular bead at the free end, into which a sealing ring is inserted on the inside, the press jaw has a molded-in press groove for receiving this annular bead. The individual sections of the press groove in the press jaws complement each other to form a continuous press groove.
Um nicht nur den Ringwulst auf das Rohrende zu pressen, sondern auch neben dem Ringwulst eine Verpressung zwischen Preßfitting und Rohrende zu bewirken, verlaufen zu beiden Seiten der Preßnut Preßstege, die sich beim Preßvorgang in das Material des Preßfittings und damit auch des eingesteckten Rohrendes einpressen. Wie der DE-A-38 33 748 zu entnehmen ist, ist für das Funktionieren der Verpressung das Vorsehen von Preßstegen auf beiden Seiten der Preßnut nicht unbedingt erforderlich. Die Handhabung ist jedoch dann, wenn der Querschnitt der Preßbacken symmetrisch ist, also zu beiden Seiten der Preßnut Preßstege verlaufen, narrensicher, da es dann nicht darauf ankommt, in welcher Lage das Preßwerkzeug an die zu verpressende Stelle angelegt wird.In order not only to press the ring bead onto the pipe end, but also to cause compression between the press fitting and the pipe end in addition to the ring bead, press ridges run on both sides of the press groove, which press into the material of the press fitting and thus also of the inserted pipe end during the pressing process. As can be seen from DE-A-38 33 748, the provision of press bars on both sides of the press groove is not absolutely necessary for the functioning of the pressing. However, the handling is foolproof if the cross-section of the press jaws is symmetrical, that is to say the press ridges run on both sides of the press groove, since it does not matter in which position the press tool is placed at the point to be pressed.
Beim Einsatz eines Preßwerkzeuges der eingangs genannten Art mit symmetrischer Querschnittskontur der Preßbacken hat sich gezeigt, daß der auf der freien Seite des Preßfittings liegende Preßsteg in der Endphase des Preßvorgangs auch an dem Rohr zur Anlage kommt und dort zu einer Einschnürung des Rohres führt. Abgesehen davon, daß sich hierdurch die aufzuwendenden Preßkräfte erhöhen, wird die durch die Verpressung des Ringwulstes erzeugte elastische Vorspannung des Dichtrings verringert, so daß nicht mehr gewährleistet ist, daß die geforderte Dichtheit über Jahre hinweg erhalten bleibt. Im ungünstigsten Falle kann im Dichtsitzbereich sogar ein Spalt entstehen, der Undichtigkeiten nach sich zieht. Der Erfindung liegt deshalb die Aufgabe zugrunde, ein Preßwerkzeug der eingangs genannten Art so auszubilden, das unter Beibehaltung der Montagesicherheit ein Verpressen ohne Gefährdung der Dichtheit zuläßt.When using a pressing tool of the type mentioned at the outset with a symmetrical cross-sectional contour of the pressing jaws, it has been shown that the pressing web lying on the free side of the pressing fitting also comes into contact with the pipe in the final phase of the pressing process and there leads to a constriction of the pipe. Apart from the fact that this increases the pressing forces to be applied, the elastic prestressing of the sealing ring produced by the compression of the annular bead is reduced, so that it is no longer guaranteed that the required tightness is maintained for years. In the worst case, a gap can even arise in the sealing seat area, which leads to leaks. The invention is therefore based on the object of designing a pressing tool of the type mentioned at the outset which, while maintaining the assembly security, permits pressing without endangering the tightness.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß entlang nur einer Seite der Preßnut ein Preßsteg verläuft und zur anderen Seite hin eine Lehre angeordnet ist, die über das eingesteckte Werkstück, nicht jedoch über das aufgeschobene Werkstück paßt.This object is achieved in that a pressing web runs along only one side of the press groove and a jig is arranged on the other side, which fits over the inserted workpiece, but not over the pushed-on workpiece.
Mit einem solchermaßen ausgebildeten Preßwerkzeug wird eine Verformung des Rohrs im Bereich des freien Endes des Preßfittings vermieden. Dies hat zur Folge, daß die elastische Vorspannung des Dichtrings infolge der Verpressung des Ringwulstes nicht beeinträchtigt wird, die geforderte Dichtheit also über Jahre gewährleistet bleibt. Nebenbei fallen auch die au zuwendenden Preßkräfte geringer aus.With a press tool designed in this way, deformation of the tube in the region of the free end of the press fitting is avoided. The consequence of this is that the elastic prestressing of the sealing ring is not impaired as a result of the compression of the ring bead, so that the required tightness remains guaranteed for years. In addition, the compressive forces to be applied are also lower.
Die nach der Aussage der DE-A-38 33 748 durch diese Maßnahme beeinträchtigte Montagesicherheit bleibt dadurch gewährleistet, daß die Maßnahme mit der Anbringung einer vorzugsweise maulartig geformten Lehre kombiniert wird, welche zwar über das eingesteckte Werkstück, in der Regel das Rohrende, nicht jedoch über das aufgesteckte Werkstück, insbesondere der Preßfitting, paßt. Dabei ist zu beachten, daß ein bestimmtes Preßwerkzeug nur zum Verpressen eines Werkstückes mit einem bestimmten Durchmesser paßt, die Bezugnahme auf das Werkstück also gleichzeitig eine Aussage über die Dimensionierung des Preßwerkzeuges beinhaltet. Die zusätzliche Anordnung einer Lehre verhindert, daß das Preßwerkzeug in einer falschen Stellung, bei der der Preßsteg auf der zum freien Ende des Preßfittings gerichteten Seite des Ringwulstes zu liegen kommt, auf die Preßstelle aufgesetzt wird, denn in dieser Stellung verhindert die Lehre ein Aufsetzen, weil sie nicht über den Preßfitting paßt. Erst in der umgekehrten Stellung, in der die Lehre außerhalb des Preßfittings zu liegen kommt, ist ein Anlegen des Preßwerkzeuges möglich.The assembly safety impaired by this measure according to the statement of DE-A-38 33 748 is ensured by the fact that the measure is combined with the attachment of a preferably jaw-shaped jig, which, although over the inserted workpiece, generally the pipe end, but not fits over the attached workpiece, especially the press fitting. It should be noted that a specific pressing tool only fits for pressing a workpiece with a certain diameter, so the reference to the workpiece also contains a statement about the dimensioning of the pressing tool. The additional arrangement of a gauge prevents the press tool from being placed on the press point in the wrong position, in which the press web comes to rest on the side of the annular bead facing the free end of the press fitting, because in this position the gauge prevents it from touching down, because they don't have that Press fitting fits. Only in the reverse position, in which the gauge comes to lie outside the press fitting, is it possible to put the press tool on.
Die Lehre besteht in einer besonders einfachen Ausbildung aus einem entsprechend geformten Blechteil, das an einem der Preßbackenelemente befestigt ist.The teaching consists in a particularly simple design of a correspondingly shaped sheet metal part which is attached to one of the press jaw elements.
In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispiels näher veranschaulicht. Es zeigen:In the drawing, the invention is illustrated in more detail using an exemplary embodiment. Show it:
Figur (1) den Preßring eines Preßwerkzeuges in geöffnetem Zustand;Figure (1) the press ring of a press tool in the open state;
Figur (2) den Preßring gemäß Figur (1) in geschlossenem Zustand;Figure (2) the press ring according to Figure (1) in the closed state;
Figur (3) einen Schnitt durch das Kupplungsglied desFigure (3) shows a section through the coupling member of the
Preßrings gemäß den Figuren (1) und (2) in den Ebenen A-B in lockerer Kupplungsεtellung;Press rings according to the figures (1) and (2) in the levels A-B in a loose coupling position;
Figur (4) das Kupplungsglied in der Darstellung gemäßFigure (4) the coupling member in the illustration according to
Figut (3) in gespanntem Zustand;Figut (3) in a tensioned state;
Figur (5) den Preßring gemäß den Figuren (1) bis (4) in der Stellung nach der Verpressung undFigure (5) the press ring according to Figures (1) to (4) in the position after the pressing and
Figur (6) den Preßring mit Rohrende und Preßfitting in einem Axialschnitt in aufgesetztem Zu¬ stand.Figure (6) the press ring with pipe end and press fitting in an axial section in the attached state.
In den Figuren (1), (2) und (5) ist im Querschnitt und strickpunktiert ein innenliegendes Rohrende (1) sowie ein darauf aufgeschobenes Preßfitting (2) mit einem einen Dichtring enthaltenen Ringwulst (3) angedeutet. Rohrende (1) und Preßfitting (2) sollen mit Hilfe eines Preßwerkzeuges (4) verpreßt werden, von dem in den Figuren (1), (2) und (5) nur der Preßring (5) dargestellt ist.In the figures (1), (2) and (5), an inner pipe end (1) and a press fitting (2) with a ring bead (3) containing a sealing ring are indicated in cross-section and in a dot-dash line. Pipe end (1) and press fitting (2) should be pressed using a press tool (4) be pressed, of which only the press ring (5) is shown in Figures (1), (2) and (5).
Der Preßring (5) weist bei diesem Ausführungsbeispiel im wesentlichen identisch ausgebildete Preßbackenelemente (6, 7,In this exemplary embodiment, the press ring (5) has press jaw elements (6, 7,
8, 9, 10) auf, wobei jedes Preßbackenelement (6, 7, 8, 9, 10) aus einem außenliegenden Preßbackenträger (11, 12, 13, 14, 15) und einer innenliegenden, bogen örmigen Preßbacke (16, 17, 18, 19, 20) besteht. Bis auf eine Ausnahme sind die Preßbackenträger über Zwischenstücke (21, 22, 23, 24) miteinander verbunden, wobei die Preßbackenträger (11, 12, 13,8, 9, 10), each pressing jaw element (6, 7, 8, 9, 10) consisting of an external pressing jaw carrier (11, 12, 13, 14, 15) and an internal, arcuate pressing jaw (16, 17, 18th , 19, 20). With one exception, the press jaw carriers are connected to one another via intermediate pieces (21, 22, 23, 24), the press jaw carriers (11, 12, 13,
14, 15) über Gelenkbolzen (26, 27, 28, 29, 30, 31, 32, 33) an den Zwischenstücken (21, 22, 23, 24) angelenkt sind.14, 15) are articulated on the intermediate pieces (21, 22, 23, 24) via hinge pins (26, 27, 28, 29, 30, 31, 32, 33).
Wenigstens jeweils ein Gelenkbolzen (26, 27, 28, 29, 30, 31, 32, 33) pro Zwischenstück (21, 22, 23, 24) ist herausnehmbar ausgebildet, so daß sich der Preßring (5) in einzelne Preßbackenelemente (6, 7, 8, 9, 10) auseinandernehmen oder aus diesen vor Ort zusammensetzen läßt. Die Preßbacken (16, 17, 18, 19, 20) sind in Umfangsrichtung verschieblich in den Preßbackenträgern (11, 12, 13, 14, 15) gelagert.At least one hinge pin (26, 27, 28, 29, 30, 31, 32, 33) per intermediate piece (21, 22, 23, 24) is designed to be removable, so that the press ring (5) is divided into individual press jaw elements (6, 7, 8, 9, 10) can be taken apart or assembled on site. The press jaws (16, 17, 18, 19, 20) are mounted in the press jaw carriers (11, 12, 13, 14, 15) so as to be displaceable in the circumferential direction.
An jedem Preßbackenträger (11, 12, 13, 14, 15) ist eine Klemmeinrichtung (34, 35, 36, 37, 38) angebracht, die einen radial nach innen gerichteten und unter Federvorspannung stehenden Klemmstempel (39, 40, 41, 42, 43) aufweist. Die Klemmeinrichtungen (34, 35, 36, 37, 38) dienen gleichzeitig der axialen Führung der Preßbacken (16, 17, 18, 19, 20).A clamping device (34, 35, 36, 37, 38) is attached to each press jaw support (11, 12, 13, 14, 15), which has a clamping punch (39, 40, 41, 42, 43). The clamping devices (34, 35, 36, 37, 38) also serve to axially guide the press jaws (16, 17, 18, 19, 20).
Die Gelenkbolzen (29, 30) an dem mittleren Preßbackenträger (13) tragen eine maulartige Lehre (44) in Form eines Blechteils mit einer halbkreisförmigen Ausnehmung (45), wobei der Radius der Ausnehmung (45) so bemesen ist, daß die Lehre (44) einerseits über das Rohrende (1) paßt, andererseits aber nicht über den an den Ringwulst (3) anschließenden, zylindrischen Teil des Preßfittings (2). Hierdurch ist gesichert, daß der Preßring (5) nur in einer, und zwar der vorgesehenen Stellung über die Kombination aus Rohrende (1) und Preßfitting (2) herumgelegt werden kann.The hinge pins (29, 30) on the central press jaw support (13) carry a jaw-like gauge (44) in the form of a sheet metal part with a semicircular recess (45), the radius of the recess (45) being such that the gauge (44 ) fits on the one hand over the pipe end (1), but on the other hand does not fit over the cylindrical part of the press fitting (2) adjoining the annular bead (3). This ensures that the Press ring (5) can only be put around in one of the provided positions using the combination of pipe end (1) and press fitting (2).
Die unteren Preßbackenelemente (6, 10) haben in den in den Figuren (1) und (2) gezeigten Stellungen zwischen sich einen Schließspalt (46). In den Figuren (1) ist er so groß, daß der Preßring (5) über Preßfitting (2) und Rohrende (1) gestülpt werden kann. Die freien Enden der den Schließspalt (46) begrenzenden Preßbackenelemente (6, 10) tragen Gelenkbolzen (47, 48) wobei an jedem Gelenkbolzen (47, 48), jeweils eine Kupplungslasche (49, 50) aufgehängt ist. Die Formgebung der Kupplungslaschen (49, 50) und ihre Verbindung mit den Gelenkbolzen (47, 48) ergeben sich insbesondere aus der Schnittdarstellung gemäß den Figuren (3) und (4).The lower press jaw elements (6, 10) have a closing gap (46) between them in the positions shown in FIGS. (1) and (2). In the figures (1) it is so large that the press ring (5) can be put over the press fitting (2) and pipe end (1). The free ends of the pressing jaw elements (6, 10) delimiting the closing gap (46) carry hinge pins (47, 48), a coupling bracket (49, 50) being suspended from each hinge pin (47, 48). The shape of the coupling straps (49, 50) and their connection with the hinge pins (47, 48) result in particular from the sectional view according to FIGS. (3) and (4).
Die freien Enden der Kupplungslaschen (49, 50) weisen Durchgangsöfnungen (51, 52) auf. In die Durchgangsbohrung (51) der Kupplungslasche (49) ist ein Kupplungsbolzen (53) axial verschieblich eingesetzt. Er weist einen ersten BolzenabschnittThe free ends of the coupling tabs (49, 50) have through openings (51, 52). In the through hole (51) of the coupling bracket (49), a coupling pin (53) is inserted axially. It has a first bolt section
(54) auf, mit dem er die Durchgangsbohrung (51) durchfaßt. Ein Ende des ersten Bolzenabschnittes (54) ist mit einem Handhebel(54) with which it passes through the through hole (51). One end of the first pin section (54) is with a hand lever
(55) verbunden. An dem anderen Ende des ersten Bolzenabschnittes (54) ist ein zweiter Bolzenabschnitt (56 angeformt, dessen Achse gegenüber der Achse des ersten Bolzenabschnittes (54) um eine Exentrizität (57) versetzt ist. Der zweite Bolzenabschnitt (56) paßt in die Durchgangsbohrung (52) der anderen Kupplungslasche (50). Die Kupplungslaschen (49, 50) bilden zusammen mit dem Kupplungsbolzen (53) ein Kupplungsglied zur provisorischen Verbindung der Enden des Preßrings (5) vor dem eigentlichen Preßvorgang.(55) connected. A second pin section (56) is formed on the other end of the first pin section (54), the axis of which is offset by an eccentricity (57) with respect to the axis of the first pin section (54). The second pin section (56) fits into the through hole (52) ) of the other coupling plate (50) The coupling plates (49, 50) together with the coupling pin (53) form a coupling element for the temporary connection of the ends of the pressing ring (5) before the actual pressing process.
Wie sich aus der Darstellung gemäß Figur (6) ersehen läßt, werden die Preßbacken (16, 17, 18, 19, 20) nicht nur durch die Klemmeinrichtungen (34, 35, 36, 37, 38) axial geführt, sondern auch durch auf der anderen Seite der Preßbackenträger (11, 12, 13, 14, 15) aufgeschraubte Führungsplatten (62). Die Preßbacken (16, 17, 18, 19, 20) selbst haben eine asymmetrische Querschnittskontur. Sie weisen eine Ringnut (63) auf, wobei sich die Preßnuten (63) aller Preßbacken (16, 17, 18, 19, 20) zu einer durchgehenden Umfangsringnut ergänzen. Der Querschnitt der Preßnut (63) ist an den Ringwulst (3) angepaßt, welcher innenseitig einen Dichtring (64) trägt.As can be seen from the illustration in FIG. 6, the pressing jaws (16, 17, 18, 19, 20) are not only guided axially by the clamping devices (34, 35, 36, 37, 38), but also by the other side of the press jaw carrier (11, 12, 13, 14, 15) screwed on guide plates (62). The press jaws (16, 17, 18, 19, 20) themselves have an asymmetrical cross-sectional contour. They have an annular groove (63), the pressing grooves (63) of all pressing jaws (16, 17, 18, 19, 20) complementing one another to form a continuous circumferential annular groove. The cross section of the press groove (63) is adapted to the annular bead (3), which carries a sealing ring (64) on the inside.
Entlang einer Seite der Ringnut (63) verläuft ein Preßsteg (65). Auch er ergänzt sich mit den Preßstegen der anderen Preßbacken (16, 17, 19, 20) zu einem durchgehenden Umfangspreßsteg. Der Preßsteg (65) ist dazu bestimmt, sich beim Preßvorgang in das Material des Preßfittings (2) einzugraben und auch das Rohrende zu verformen (1) einzugraben. Auf der anderen Seite der Ringnut (63) ist ein solcher Preßsteg nicht vorgesehen.A pressing web (65) runs along one side of the annular groove (63). It also complements the press bars of the other press jaws (16, 17, 19, 20) to form a continuous circumferential press bar. The press web (65) is intended to dig into the material of the press fitting (2) during the pressing process and also to bend the pipe end (1). On the other side of the annular groove (63), such a press bar is not provided.
Für einen Preßvorgang wird zunächst der geöffnete Preßring (5) über das Rohrende (1) und den Preßfitting (2) gelegt, wie dies aus den Figuren (1) und (6) zu sehen ist. Wenn der Preßring (5) auf dem Rohrende (1) bzw. Preßfitting (2) aufsitzt, werden die beiden unteren Preßbackenelemente (6, 10) in Richtung zueinander und auf das Rohrende (1) verschwenkt, so daß sie die in Figur (2) gezeigte Stellung einnehmen. Die dann noch herunterhängenden, in dieser Stellung in Figur (2) strichpunktiert dargestellten Kupplungslaschen (49, 50) werden dann in die Richtungen der Pfeile C bzw. D zueinander verschwenkt. Dabei befindet sich der Kupplungsbolzen (53) in einer solchen Stellung, daß sein zweiter Bolzenabschnitt (56) nicht über die Durchgangsbohrung (51) vorsteht, was in Figur (3) durch die strickpunktiert gezeigte Stellung des Handhebels (55) angedeutet ist.For a pressing process, the opened press ring (5) is first placed over the pipe end (1) and the press fitting (2), as can be seen from the figures (1) and (6). When the press ring (5) is seated on the pipe end (1) or press fitting (2), the two lower press jaw elements (6, 10) are pivoted towards each other and onto the pipe end (1), so that they correspond to those shown in Figure (2 ) assume the position shown. The coupling lugs (49, 50) which then still hang down and are shown in dash-dot lines in this position in FIG. The coupling bolt (53) is in such a position that its second bolt section (56) does not protrude through the through bore (51), which is indicated in FIG. (3) by the position of the hand lever (55) shown in dotted lines.
Die Verschwenkung der Kupplungεlaschen (49,50) geschieht bis in eine Stellung, wo sie sich überlappen und die Durchgangsbohrungen (51, 52) ineinander übergehen. Der Kupplungsbolzen (53) und damit der Handhebel (55) befinden sich dabei in einer solchen Stellung, daß der zweite Bolzenabschnitt (56) in Richtung auf die andere Kupplungslasche (50) versetzt ist und deshalb leicht in deren Durchgangsbohrung (52) durch axiale Verschiebung des Kupplungsbolzen (53) einfassen und damit beide Kupplungεlaschen (49, 50) kuppeln kann. In dieser Stellung hat der Preßring (5) noch eine gewisse Lose.The coupling tabs (49, 50) are pivoted into a position where they overlap and the through holes (51, 52) merge into one another. The Coupling bolt (53) and thus the hand lever (55) are in such a position that the second bolt section (56) is offset in the direction of the other coupling plate (50) and therefore easily in the through bore (52) by axial displacement of the Grip the coupling bolt (53) so that both coupling straps (49, 50) can couple. In this position, the press ring (5) still has a certain amount of slack.
Der Handhebel (55) wird dann aus der in Figur (2) mit durchgezogenen Linien gezeigten Stellung in die strichpunktierte Stellung in Richtung des Pfeils E um 180° verschwenkt. Hierdurch führt der zweite Bolzenabschnitt (56) eine Exenterbewegung aus und verkürzt hierdurch den Abstand zwischen den beiden Gelenkbolzen (47, 48) um das Doppelte der Exentrizität (57). Diese wird aus dem Vergleich der Figuren (3) und (4) deutlich, wobei die Figur (4) die verschwenkte Stellung zeigt. Hierdurch wird dem Preßring (5) eine Umfangεkraft aufgeprägt, über die die Preßbacken (16, 17, 18, 19, 20) mit einer gewissen Radialvorspannung auf das Preßfitting (2) aufdrücken. Der Preßring (5) hat dann einen nicht oder nur noch schwer verdrehbaren Sitz. Diese Wirkung wird durch die Klemmstempel (39, 40, 41, 42, 43) unterstützt, welche dann mit ebenfalls radial gerichteter Vorspannung an dem Rohrende (1) anliegen.The hand lever (55) is then pivoted from the position shown in solid lines in Figure (2) to the dash-dotted position in the direction of arrow E by 180 °. As a result, the second pin section (56) executes an eccentric movement and thereby shortens the distance between the two hinge pins (47, 48) by twice the eccentricity (57). This is clear from the comparison of Figures (3) and (4), with Figure (4) showing the pivoted position. As a result, a circumferential force is impressed on the press ring (5), via which the press jaws (16, 17, 18, 19, 20) press onto the press fitting (2) with a certain radial prestress. The press ring (5) then has a seat that is difficult or impossible to turn. This effect is supported by the clamping rams (39, 40, 41, 42, 43), which then rest against the pipe end (1) with a likewise radially directed prestress.
Nun kann der eigentliche Preßvorgang beginnen. Hierzu wird eine nicht näher dargestellte, zum Preßwerkzeug (4) gehörende Schließeinrichtung verwendet, wie sie schematisch aus Figur (7) der EP-A-0 451 806 bekannt ist. Diese Schließeinrichtung hat zwei zangenförmige Hebelarme, mit denen die Schließeinrichtung an die Gelenkbolzen (47, 48) angesetzt werden kann. Sie durchfassen dabei Zwischenräume (58, 59) bzw. (60, 61) und legen sich dann an die Außenseiten der Gelenkbolzen (47, 48) an. Die zangenartigen Hebelarme werden dann mittels eines zur Schließeinrichtung gehörenden Hydraulikmotors zusammengefahren, so daß sich die Gelenkbolzen (47, 48) einander annähern. Dies hat zur Folge, daß εich der Preßring (5) zusammenzieht und hierdurch das Preßfitting (2) und das Rohrende (1) radial gestaucht werden, wobei sich der Preßsteg (64) in das Material des Preßfittings (2) ein wenig eingräbt und der Ringwulst (3) so gegen das Rohrende (1) gedrückt wird, daß der Dichtring (64) mit der für eine gute Abdichtung nötigen Radialkraft auf das Rohrende (1) gepreßt wird. Dabei verschieben sich die Preßbacken (16, 17, 18, 19, 20) in Anpasεung an dieεen Vorgang selbsttätig in Umfangsrichtung, und zwar solange, bis die Stirnseiten der Preßbacken (16, 17, 18, 19, 20) gegenseitig zur Anlage kommen. Gleichzeitig weichen die Kupplungslaschen (49, 50) nach außen aus, behindern also nicht den Preßvorgang. Nach Abschluß des Preßvorgangs nimmt der Preßring (5) die in Figur (5) gezeigte Stellung ein. Nach axialer Verεchiebung des Kupplungsbolzen (53) in der Weise, daß der zweite Bolzenabschnitt (56) aus der Durchgangsbohrung (52) herausfährt, kann der Preßring (5) wieder abgenommen und für weitere Preßvorgänge benutzt werden. Now the actual pressing process can begin. For this purpose, a locking device, not shown, belonging to the pressing tool (4) is used, as is known schematically from FIG. (7) of EP-A-0 451 806. This locking device has two pincer-shaped lever arms with which the locking device can be attached to the hinge pins (47, 48). They cover gaps (58, 59) and (60, 61) and then lay on the outside of the hinge pin (47, 48). The pliers-like lever arms are then moved together by means of a hydraulic motor belonging to the locking device, so that the hinge pins (47, 48) approach each other. This has the result that the press ring (5) contracts and thereby the press fitting (2) and the pipe end (1) are radially compressed, the press web (64) digging into the material of the press fitting (2) a little and the ring bead (3) is pressed against the pipe end (1) in such a way that the sealing ring (64) is pressed onto the pipe end (1) with the radial force required for a good seal. The press jaws (16, 17, 18, 19, 20) move automatically in the circumferential direction to adapt to this process until the end faces of the press jaws (16, 17, 18, 19, 20) come into contact with one another. At the same time, the coupling tabs (49, 50) move outwards, so they do not hinder the pressing process. After completion of the pressing process, the pressing ring (5) assumes the position shown in FIG. (5). After the coupling bolt (53) has been axially displaced in such a way that the second bolt section (56) moves out of the through bore (52), the press ring (5) can be removed again and used for further pressing operations.

Claims

Ansprüche:Preßwerkzeug Requirements: press tool
1. Preßwerkzeug zum Verpressen von rohrförmigen, ineinandergesteckten Werkstücken, insbesondere einem Rohrende und einem darübergesteckten Preßfitting, mit mehreren Preßbackenelementen, welche Preßbacken aufweisen, in die innenseitig eine jeweils in Umfangsrichtung verlaufende Preßnut eingeformt ist, dadurch gekennzeichnet, daß entlang nur einer Seite der Preßnut (63) ein Preßsteg (65) verläuft und zur anderen Seite hin eine Lehre (44) angeordnet ist, die über das eingeεteckte Werkstück (1), nicht jedoch über das aufgeschobene Werkstück (2) paßt.1. Pressing tool for pressing tubular, nested workpieces, in particular a pipe end and a press fitting plugged over them, with a plurality of press jaw elements which have press jaws into which a press groove running in the circumferential direction is formed on the inside, characterized in that along only one side of the press groove ( 63) a press web (65) runs and on the other side a jig (44) is arranged which fits over the inserted workpiece (1), but not over the pushed-on workpiece (2).
2. Preßwerkzeug nach Anspruch (1), dadurch gekennzeichnet, daß die Lehre (44) maulartig geformt ist.2. Press tool according to claim (1), characterized in that the teaching (44) is shaped like a mouth.
3. Preßwerkzeug nach Anspruch (1) oder (2), dadurch gekennzeichnet, daß die Lehre aus einem Blechteil besteht, das an einem der Preßbackenelemente (8) befestigt ist. 3. Press tool according to claim (1) or (2), characterized in that the teaching consists of a sheet metal part which is attached to one of the press jaw elements (8).
EP94901870A 1992-12-02 1993-11-25 Pressing tool Expired - Lifetime EP0671985B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9216369U DE9216369U1 (en) 1992-12-02 1992-12-02 Press tool
DE9216369U 1992-12-02
PCT/EP1993/003302 WO1994012297A1 (en) 1992-12-02 1993-11-25 Pressing tool

Publications (2)

Publication Number Publication Date
EP0671985A1 true EP0671985A1 (en) 1995-09-20
EP0671985B1 EP0671985B1 (en) 1996-08-28

Family

ID=6886640

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94901870A Expired - Lifetime EP0671985B1 (en) 1992-12-02 1993-11-25 Pressing tool

Country Status (20)

Country Link
US (1) US5697135A (en)
EP (1) EP0671985B1 (en)
JP (1) JPH08503662A (en)
CN (1) CN1093957A (en)
AT (1) ATE141835T1 (en)
AU (1) AU669039B2 (en)
BR (1) BR9307578A (en)
CA (1) CA2150811C (en)
CZ (1) CZ282551B6 (en)
DE (2) DE9216369U1 (en)
DK (1) DK0671985T3 (en)
ES (1) ES2093511T3 (en)
FI (1) FI952672A0 (en)
GR (1) GR3021325T3 (en)
HU (1) HUT71167A (en)
NO (1) NO952176L (en)
NZ (1) NZ258548A (en)
PL (1) PL171755B1 (en)
SK (1) SK66595A3 (en)
WO (1) WO1994012297A1 (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4240427C1 (en) * 1992-12-02 1994-01-20 Novopress Gmbh Press tool
DE9312808U1 (en) * 1993-08-26 1993-10-28 Novopress GmbH Pressen und Presswerkzeuge & Co KG, 41460 Neuss Measuring device for recording the insertion depth for a pipe connection
DE19734355C2 (en) * 1997-08-08 2002-08-14 Uponor Rohrsysteme Gmbh press tool
DE29721759U1 (en) * 1997-12-10 1998-04-09 Franz Viegener II GmbH & Co. KG, 57439 Attendorn Press tool for the permanent connection of a fitting and an inserted metal pipe end
US6185980B1 (en) * 1999-09-23 2001-02-13 Leonard J. Law Special crimping tool
DE50006944D1 (en) 1999-10-26 2004-08-05 Ridge Tool Ag Balzers Press tool and method for cold forming joining of workpieces
ATE317733T1 (en) * 2001-12-08 2006-03-15 Klauke Gmbh Gustav PRESSING DEVICE
US20030230132A1 (en) * 2002-06-17 2003-12-18 Emerson Electric Co. Crimping apparatus
US7398909B2 (en) * 2003-07-17 2008-07-15 Swagelok Company Pipe collets
WO2007038308A1 (en) * 2005-09-23 2007-04-05 Bruns Daniel Kidd Tool to crimp non-metallic tubing onto fittings
DE102006050427A1 (en) * 2006-08-22 2008-02-28 Gustav Klauke Gmbh Method for pressing a press fitting and pressing tool for this purpose
JP5396273B2 (en) * 2006-10-20 2014-01-22 グスタフ・クラウケ・ゲーエムベーハー Press joint press method and press tool
US20080122222A1 (en) * 2006-11-29 2008-05-29 H & H Tube & Manufacturing Co. Crimp-on transition fitting
KR100739106B1 (en) * 2006-12-20 2007-07-12 웰텍 주식회사 Device shaping roundness and jointing for butting steel pipes
US7980522B2 (en) * 2007-12-28 2011-07-19 Alion Science And Technology Corporation Trailing edge blade clamp
US8230714B2 (en) * 2009-01-23 2012-07-31 Custom Machining Services, Inc. Die carrier assembly and crimping process
US20100253066A1 (en) * 2009-04-02 2010-10-07 Victaulic Company Crimp-Type Coupling, Crimping Tool and Method of Crimping
DE202009009456U1 (en) * 2009-07-15 2010-11-25 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Pressing tool for connecting in particular tubular workpieces
DE102009059053A1 (en) * 2009-12-15 2011-06-16 REMS-WERK Christian Föll und Söhne GmbH Pressing tool for the radial compression of workpieces and tool with at least two relatively movable tool parts
CN101890457A (en) * 2010-06-25 2010-11-24 浙江毅力汽车空调有限公司 Pipeline joint crimping tool
FR2965199B1 (en) * 2010-09-24 2012-09-07 Serimax WORKING FLANGE ASSEMBLY FOR TUBES COMPRISING SEVERAL PARTS.
DE102011052852A1 (en) * 2011-08-19 2013-02-21 Gustav Klauke Gmbh pressing device
DE202011105967U1 (en) 2011-09-21 2011-12-06 Mehmet Saldiray Atac Die-multiple size head
CN102805676B (en) * 2012-08-14 2015-06-17 杭州启明医疗器械有限公司 Compression device for artificial valve replacement device
US9388885B2 (en) 2013-03-15 2016-07-12 Ideal Industries, Inc. Multi-tool transmission and attachments for rotary tool
CA3049145C (en) * 2017-03-30 2021-06-15 Ips, Corporation - Weld-On Division Pipe fitting apparatus and methods
CN108620498B (en) * 2018-04-28 2020-11-03 浙江康帕斯流体输送技术有限公司 Ring pressing tool for clamping and pressing type pipe fitting
KR200491617Y1 (en) * 2019-01-21 2020-05-11 민우정공(주) Connecting device for piping works
CN110052991A (en) * 2019-05-24 2019-07-26 成都川力美亚管业有限公司 A kind of ring pressure pipe fitting tool of stable connection
DE102019118588A1 (en) * 2019-07-09 2021-01-14 Daniel Knipping Crimp sleeve for pipe connections

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1187870B (en) * 1958-10-01 1965-02-25 Aga Plaatfoeraedling Aktiebola Plastically deformable metal coupling sleeve for connecting metal pipes with smooth ends
US3756064A (en) * 1972-03-24 1973-09-04 Waldes Kohinoor Inc Hand-operated plier-like tools
NL149406B (en) * 1973-10-02 1976-05-17 Hubert Joseph Mertens PIPE CLAMP.
DE3423283A1 (en) * 1984-06-23 1986-01-02 Helmut Dipl.-Ing. 4040 Neuss Dischler Clamping tool, in particular for connecting tubes and other sections
US4934673A (en) * 1987-12-10 1990-06-19 General Dynamics Corp., Pomona Division V-clamp installation tool
DE3833748A1 (en) * 1988-09-30 1990-04-05 Mannesmann Ag Process and device for producing a non-releasable sealed connection of pipes
EP0361630B1 (en) * 1988-09-30 1992-06-10 MANNESMANN Aktiengesellschaft Method and device and press-fitting for manufacturing a perfect, leak-proof junction of pipes
US5209100A (en) * 1990-04-12 1993-05-11 Helmut Dischler Compression tool
DE9007414U1 (en) * 1990-04-12 1991-07-18 Dischler, Helmut, Dipl.-Ing., 4040 Neuss Press tool
DE4036915A1 (en) * 1990-11-20 1992-05-21 Chiron Werke Gmbh MACHINE TOOL AND METHOD FOR OPENING AND CLOSING A GRIPPER
DE9103264U1 (en) * 1991-03-18 1991-06-20 Hewing GmbH, 4434 Ochtrup Pressing pliers for pressing pipe connections

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9412297A1 *

Also Published As

Publication number Publication date
AU5627394A (en) 1994-06-22
GR3021325T3 (en) 1997-01-31
CN1093957A (en) 1994-10-26
AU669039B2 (en) 1996-05-23
DE59303597D1 (en) 1996-10-02
NZ258548A (en) 1997-07-27
SK66595A3 (en) 1996-03-06
FI952672A (en) 1995-06-01
CZ282551B6 (en) 1997-08-13
CZ138095A3 (en) 1996-04-17
HU9501521D0 (en) 1995-07-28
ATE141835T1 (en) 1996-09-15
JPH08503662A (en) 1996-04-23
PL309047A1 (en) 1995-09-18
BR9307578A (en) 1999-08-31
WO1994012297A1 (en) 1994-06-09
US5697135A (en) 1997-12-16
HUT71167A (en) 1995-11-28
CA2150811A1 (en) 1994-06-09
EP0671985B1 (en) 1996-08-28
PL171755B1 (en) 1997-06-30
DK0671985T3 (en) 1996-12-02
FI952672A0 (en) 1995-06-01
DE9216369U1 (en) 1993-02-04
CA2150811C (en) 2001-05-29
NO952176D0 (en) 1995-06-01
NO952176L (en) 1995-06-01
ES2093511T3 (en) 1996-12-16

Similar Documents

Publication Publication Date Title
EP0671985B1 (en) Pressing tool
DE4240427C1 (en) Press tool
EP0452791B1 (en) Press tool
DE69200259T2 (en) Expandable sealing arrangement.
DE69810362T2 (en) Sealing connection between fluid bores
EP0361630A1 (en) Method and device and press-fitting for manufacturing a perfect, leak-proof junction of pipes
DE19814474C1 (en) Radial press tool for rotationally symmetrical workpieces
DE2635269A1 (en) DEVICE FOR JOINING THE ENDS OF TWO PIPES
DE3226868A1 (en) PERMANENTLY TIGHT THREADED PIPE CONNECTION
DE19701857C2 (en) Slotted mounting ring
EP0774611A1 (en) Process of manufacture of a pipe joint and coupling device for the manufacture of a pipe joint
EP1793155B1 (en) Pipe clamp, in particular tapping pipe clip
DE3203144A1 (en) Method for the pressure-tight fixing of a tube in a tube plate or the like
EP1535677B1 (en) Press tool
EP1649948A1 (en) Pressing tool
DE19750120C1 (en) Pressure pipe sealing repair shell
DE69121548T2 (en) Improved band clamp with wedge-shaped, slotted cams
CH656199A5 (en) CONNECTING ELEMENT FOR COUPLING TWO FLANGES.
DE19543312C2 (en) Pressing device for the radial pressing of line connectors
DE29517518U1 (en) Press tool
DE29521410U1 (en) Combination of press fitting, pipe and press device as well as press device therefor
DE19743185A1 (en) Multiple connector for pipelines
DE3334074A1 (en) Remotely controllable clamping fixture for joining two pipe flanges located in hot cells of nuclear installations
WO1996021531A1 (en) Process for securing a press fitting to the end of a tube and a press for implementing the process
DE19844878A1 (en) Method and appliance for producing a pressure join comprise tool, with drive mechanism and pressure jaws with pressure profile

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19950512

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL PT SE

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19960215

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL PT SE

REF Corresponds to:

Ref document number: 141835

Country of ref document: AT

Date of ref document: 19960915

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59303597

Country of ref document: DE

Date of ref document: 19961002

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19961003

ITF It: translation for a ep patent filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 19961118

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 19961125

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GR

Payment date: 19961127

Year of fee payment: 4

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2093511

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3021325

SC4A Pt: translation is available

Free format text: 961004 AVAILABILITY OF NATIONAL TRANSLATION

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19971130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19980531

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19980531

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19991119

Year of fee payment: 7

Ref country code: AT

Payment date: 19991119

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19991122

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19991123

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19991125

Year of fee payment: 7

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001126

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 20001129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20001130

BERE Be: lapsed

Owner name: NOVOPRESS G.M.B.H. PRESSEN UND PRESSWERKZEUGE & C

Effective date: 20001130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20010601

EUG Se: european patent has lapsed

Ref document number: 94901870.9

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20010601

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20011102

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011113

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20011119

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20011126

Year of fee payment: 9

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030603

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030731

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20011214

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051125