EP0628362B1 - Press tool - Google Patents

Press tool Download PDF

Info

Publication number
EP0628362B1
EP0628362B1 EP94110655A EP94110655A EP0628362B1 EP 0628362 B1 EP0628362 B1 EP 0628362B1 EP 94110655 A EP94110655 A EP 94110655A EP 94110655 A EP94110655 A EP 94110655A EP 0628362 B1 EP0628362 B1 EP 0628362B1
Authority
EP
European Patent Office
Prior art keywords
compression
press
jaws
press tool
abutment
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.)
Expired - Lifetime
Application number
EP94110655A
Other languages
German (de)
French (fr)
Other versions
EP0628362A3 (en
EP0628362A2 (en
Inventor
Helmut Dipl.-Ing. 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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6404263&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0628362(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP0628362A2 publication Critical patent/EP0628362A2/en
Publication of EP0628362A3 publication Critical patent/EP0628362A3/en
Application granted granted Critical
Publication of EP0628362B1 publication Critical patent/EP0628362B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046—Connecting tubes to tube-like fittings
    • 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
    • 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
    • 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
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/146—Clip clamping hand tools
    • 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, in particular for Connecting tubular workpieces with press jaws that such are movable relative to each other that they can be put on are openable on the workpiece and that they are at the end of the press complement to a closed press room, as well as with a Drive device for moving press jaws in the press direction, one of the press jaws being attachable to the workpiece Abutment formed and arranged on a bracket is located at the free end of the press tool and which is pivotally mounted on one side and on the opposite Side is releasable or lockable.
  • Coupling sleeves are used to connect pipe ends, which are plastically deformable and made of metal, preferably made of Steel. Their inside diameter is so much larger than the outer diameter of the pipe ends to be connected that they at radial compression until it lies against the lateral surface the pipe ends are permanently deformed. After DE-PS 1 187 87 ⁇ can such coupling sleeves on the inside have an annular groove near each end, in which an elastic sealing ring is inserted.
  • Press tools are provided for the radial compression, as they are known for example from DE-PS 21 36 782.
  • This press tool has two two-armed each Clamping jaws, at least one of which is pivotable on the Press tool is stored.
  • the press jaws have circular arc sections forming press surfaces with the same radii on include a press room. Instead of as circular arc sections the press surfaces may also be contoured, for example to form a polygonal or oval press room.
  • the arms of the press jaws located away from the press chamber can be spread against the action of a spring with the result that the pressing jaws move against each other in the area of the pressing space will.
  • the spreading is done by means of juxtaposed and adjacent pressure rollers that work together by means of a drive device in the form of a working cylinder between the arms and in this way the Swivel the press jaws.
  • This press tool has two press jaws provided, each pivotable on a drive lever are stored, which in turn is pivotable on the pressing tool are led.
  • the drive levers face each other Arms up by means of a working cylinder in the space retractable pressure rollers can be spread and on this way to move the press jaws towards each other.
  • the press jaws are also performed in such a way that when pivoting the drive lever in the opening direction their articulation points are swung open on the drive levers, so that between the end faces of the press jaws a wide, mouth-like Opening arises, which is the inclusion of the to be connected Pipe ends or a coupling sleeve facilitated.
  • US-A-4 528 74 ⁇ is a generic pressing tool for Connecting nested pipe ends disclosed in which a semi-circular press jaw by means of a stamp in the axial Direction against another semicircular press jaw is.
  • the other press jaw forms a kind of abutment.
  • This press jaw is arranged on a bracket on one side is pivotally mounted and on the opposite Side is releasable or lockable. For attaching the press tool at the end of the tube the bracket is in the opening direction pivoted and can be locked after attachment.
  • press tools have proven their worth when one is not too large diameter reduction or press-in depth required becomes. With larger press-in depths which are then required if the pipe connection is to withstand higher internal pressures, it is recommended to provide more than two press jaws, so that it is not between the end faces of the press jaws Forming outwardly protruding webs, which one would prevent the press jaws from closing completely.
  • Such pressing tools are for example in DE-OS 21 18th 782, DE-OS 35 13 129, DE-AS 25 11 942 and DE-AS 19 ⁇ 7 956. All the pressing tools disclosed therein have in common that all press jaws are movable and in the radial direction are led. This requires complex guides and drive devices, making the pressing tools heavy and therefore difficult to handle and also expensive.
  • the invention has for its object a press tool type mentioned so that it is despite the arrangement of more than two press jaws as simple as possible and therefore easy to handle and inexpensive to manufacture is.
  • the press jaws have circular arc sections of equal length in the circumferential direction, the gap between the opposite ends the press jaws are evenly distributed over the circumference.
  • the directions of movement should be of the two movable press jaws an angle of 6 ⁇ ° include that symmetrical to the perpendicular to the abutment lies and opens away from it.
  • At four press jaws should indicate the directions of movement of the two Abutment adjacent press jaws during the pressing process an angle of 9 ⁇ °, which is symmetrical to the perpendicular lies on the abutment and opens away from it.
  • the movable press jaws on the one hand by their directions of movement default management facilities and on the other a press ram movable in the direction of the abutment, which is connected to the drive device is and on which the press jaws adjacent to the abutment are displaceable are stored.
  • the press ram is included Part of the drive device and can, for example, as Hydraulic cylinder designed or connected to such be.
  • Hydraulic cylinder designed or connected to such be.
  • a press ram can also be used for any movable Press jaw provided its own drive device be, for example, again a hydraulic cylinder. This can have a press or tension stamp.
  • a press tool 1 is shown, and the upper part of the head. It has a tool housing 2 on, which is hollow on the inside and initially downwards widened and then tapered. In the middle area it has a U-shaped recess 3.
  • the free ends of the recess 3 are through an abutment bracket 4 connected.
  • the abutment bracket 4 is on it in this Right side view pivotally mounted about a bearing pin 5.
  • On the left side in this view is the abutment bracket 4 via a locking pin 6 in the position shown fixed.
  • This locking pin 6 goes through corresponding recesses in the tool housing 2 and in the abutment 4 and can easily be removed. After its removal, the abutment bracket can 4 around the bearing pin 5 in the directions of the double arrow A be pivoted, clockwise so far that the Recess 3 is completely open towards the top.
  • the abutment bracket 4 has a pressing surface 7 which Has a circular arc shape and is symmetrical over an angle of 12 ⁇ ° extends to the longitudinal axis of the pressing tool 1.
  • the press surface 7 has a circumferential, inward open groove. It can be exchangeably attached to the abutment bracket 4 be.
  • Sloping guide surfaces run inside the tool housing 2 8, 9, which include an angle of 6 ⁇ ° and mirror symmetry run to the longitudinal axis of the pressing tool 1.
  • To the Guide surfaces 8, 9 are each a press jaw 1 ⁇ , 11, and via appropriately inclined contact surfaces 12, 13.
  • the press jaws 1 ⁇ , 11 are also mirror-symmetrical to the longitudinal axis of the pressing tool 1 and each have a pressing surface 14, 15 on, each as extending over 12 ⁇ ° Circular arc sections are formed. Inside is also in they formed a circumferential groove.
  • the circular arc sections all pressing surfaces 7, 14, 15 have identical radii.
  • the Press jaws 1 ⁇ , 11 project horizontally and transversely on the underside guide groove 16 extending to the longitudinal axis of the pressing tool 1 into it, which are molded into the head 17 of a press ram 18 is.
  • the undersides of the press jaws 1 ⁇ , 11 also run horizontally, so that the press jaws 1 ⁇ , 11 in the groove 16 transverse to Longitudinal axis of the press tool 1 guided in the groove 16 are, in the manner of a dovetail guide form-fitting.
  • transverse running blind holes 19, 2 ⁇ formed, the coaxial lie to each other.
  • Compression spring 21 is used, which strives to press jaws 1 ⁇ , 11 to the outside and thus over the contact surfaces 12, 13 to the Press guide surfaces 8, 9.
  • the ram 18 is vertically in the direction of the longitudinal axis of the pressing tool 1 (Double arrow B) linearly movable. He is from one pneumatically or hydraulically operated working cylinder actuated, which is not shown here.
  • the lock is first the abutment bracket 4 released by means of the locking bolt 6, d. H. this locking pin 6 is pulled out and the abutment bracket 4 swiveled clockwise until the forked Opening of the recess 3 is completely free.
  • the ram 18 in a retracted downward Sale.
  • the press tool 1 can then to a Coupling sleeve 22 are attached so that the coupling sleeve 22 perpendicular to the plane of the drawing through the recess 3 extends and is absorbed by this.
  • Abutment 4 pivoted around the coupling sleeve 22 and through Inserting the locking pin 6 locked.
  • the coupling sleeve 22 is then enclosed by the press tool 1.
  • the press jaws 1 ⁇ , 11 are then raised by pressing the ram 18 brought to bear on the coupling sleeve 23. Because your radius is smaller than the radius by the intended insertion depth the coupling sleeve 22 before pressing, the pressing surfaces are 7, 14, 15 only with their outer transverse edges on the circumference the coupling sleeve 22. Between the end faces of the press jaws 1 ⁇ , 11 and the abutment bracket 4 are still free gaps 23, 24, 25, which are the same size. The radii of the circular arc sections the pressing surfaces 7, 14, 15 start from central points, which lie in the tips of an equilateral triangle.
  • the ram 18 move upwards.
  • the press jaws 1 ⁇ , 11 slide over their contact surfaces 12, 13 over the guide surfaces 8, 9, whereby one in the direction of the double arrows C, D Direction of movement is impressed.
  • the two directions of movement enclose the same angle as the guide surfaces 8, 9, d. H. 6 ⁇ °.
  • the press jaws slide 1 ⁇ , 11 in the groove 16 of the ram 18 simultaneously horizontally in the direction towards each other, against the action of the compression spring 21.
  • the coupling sleeve 22 is radially compressed, d. H. in diameter by the desired press-in depth decreased.
  • the press surfaces 7, 14, 15 enclosed a circular press room and have the Columns 23, 24, 25 reduced to zero.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Press Drives And Press Lines (AREA)
  • Automatic Assembly (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Paper (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Adornments (AREA)
  • Earth Drilling (AREA)

Abstract

A press tool (91, 92) for connecting tubular workpieces (101, 108) has more than two pressing jaws (94, 95, 110, 111) and these can be moved relative to one another in such a way with the aid of at least one driving device (103) that they can be moved out of an open position, in which the press tool can be placed on the workpiece (101, 108), into a pressing position, in which the pressing jaws (94, 95, 110, 111) complement one another to form a closed pressing space. According to the invention, the pressing jaws (94, 95, 110, 111) are connected to one another in a jointed manner to form a pressing ring (93, 109), the pressing ring (93, 109) being open between two pressing jaws (95, 111) and being closable by means of the driving device(s) (103) thereby being drawn together. <IMAGE>

Description

Die Erfindung betrifft ein Preßwerkzeug, insbesondere zum Verbinden von rohrförmigen Werkstücken mit Preßbacken, die derart relativ zueinander beweglich sind, daß sie zum Aufsetzen auf das Werkstück öffenbar sind und daß sie sich zum Preßende hin zu einem geschlossenen Preßraum ergänzen, sowie mit einer Antriebseinrichtung zur Bewegung von Preßbacken in Preßrichtung, wobei einer der Preßbacken als ein am Werkstück ansetzbares Widerlager ausgebildet und an einem Bügel angeordnet ist, der sich am freien Ende des Preßwerkzeugs befindet und der auf einer Seite schwenkbar gelagert und an der gegenüberliegenden Seite lösbar bzw. verriegelbar ist. (US-A-4528740)The invention relates to a pressing tool, in particular for Connecting tubular workpieces with press jaws that such are movable relative to each other that they can be put on are openable on the workpiece and that they are at the end of the press complement to a closed press room, as well as with a Drive device for moving press jaws in the press direction, one of the press jaws being attachable to the workpiece Abutment formed and arranged on a bracket is located at the free end of the press tool and which is pivotally mounted on one side and on the opposite Side is releasable or lockable. (US-A-4528740)

Zur Verbindung von Rohrenden werden Kupplungshülsen verwendet, die plastisch verformbar sind und aus Metall, vorzugsweise aus Stahl bestehen. Ihr Innendurchmesser ist um so viel größer als der Außendurchmesser der zu verbindenden Rohrenden, daß sie bei radialer Zusammenpressung bis zum Anliegen an der Mantelfläche der Rohrenden bleibend verformt werden. Nach der DE-PS 1 187 87⊘ können solche Kupplungshülsen an ihrer Innenseite in der Nähe jedes Endes zusätzlich eine Ringnut aufweisen, in die ein elastischer Dichtungsring eingelegt ist.Coupling sleeves are used to connect pipe ends, which are plastically deformable and made of metal, preferably made of Steel. Their inside diameter is so much larger than the outer diameter of the pipe ends to be connected that they at radial compression until it lies against the lateral surface the pipe ends are permanently deformed. After DE-PS 1 187 87⊘ can such coupling sleeves on the inside have an annular groove near each end, in which an elastic sealing ring is inserted.

Für das radiale Zusammenpressen sind Preßwerkzeuge vorgesehen, wie sie beispielsweise aus der DE-PS 21 36 782 bekannt sind. Dieses Preßwerkzeug weist zwei jeweils zweiarmig ausgebildete Klemmbacken auf, von denen wenigstens einer schwenkbar an dem Preßwerkzeug gelagert ist. Die Preßbacken weisen Kreisbogenabschnitte bildende Preßflächen mit gleichen Radien auf, die einen Preßraum einschließen. Statt als Kreisbogenabschnitte können die Preßflächen auch konturiert sein, um beispielsweise einen mehreckigen oder ovalen Preßraum zu bilden.Press tools are provided for the radial compression, as they are known for example from DE-PS 21 36 782. This press tool has two two-armed each Clamping jaws, at least one of which is pivotable on the Press tool is stored. The press jaws have circular arc sections forming press surfaces with the same radii on include a press room. Instead of as circular arc sections the press surfaces may also be contoured, for example to form a polygonal or oval press room.

Die dem Preßraum entfernt liegenden Arme der Preßbacken können gegen die Wirkung einer Feder gespreizt werden mit der Folge, daß die Preßbacken im Bereich des Preßraums gegeneinander bewegt werden. Das Spreizen geschieht mittels nebeneinander angeordneter und aneinander anliegender Druckrollen, die gemeinsam mittels einer Antriebeseinrichtung in Form eines Arbeitszylinders zwischen die Arme gefahren werden und auf diese Weise die Preßbacken verschwenken.The arms of the press jaws located away from the press chamber can be spread against the action of a spring with the result that the pressing jaws move against each other in the area of the pressing space will. The spreading is done by means of juxtaposed and adjacent pressure rollers that work together by means of a drive device in the form of a working cylinder between the arms and in this way the Swivel the press jaws.

Eine Weiterentwicklung dieses Preßwerkzeuges ist in der DE-OS 34 23 283 beschrieben. Bei diesem Preßwerkzeug sind zwei Preßbacken vorgesehen, die jeweils an einem Antriebshebel schwenkbar gelagert sind, welche wiederum schwenkbar an dem Preßwerkzeug geführt sind. Die Antriebshebel weisen gegenüberliegende Arme auf, die mittels von einem Arbeitszylinder in den Zwischenraum einfahrbaren Druckrollen gespreizt werden können und auf diese Weise die Preßbacken aufeinander zu bewegen. Die Preßbacken sind dabei zusätzlich in Kulissen derart geführt, daß sie beim Verschwenken der Antriebshebel in öffnungsrichtung um ihre Anlenkpunkte an den Antriebshebeln aufgeschwenkt werden, so daß zwischen den Stirnseiten der Preßbacken eine weite, maulartige Öffnung entsteht, die die Aufnahme der zu verbindenden Rohrenden bzw. einer Kupplungshülse erleichtert.A further development of this pressing tool is in DE-OS 34 23 283. This press tool has two press jaws provided, each pivotable on a drive lever are stored, which in turn is pivotable on the pressing tool are led. The drive levers face each other Arms up by means of a working cylinder in the space retractable pressure rollers can be spread and on this way to move the press jaws towards each other. The press jaws are also performed in such a way that when pivoting the drive lever in the opening direction their articulation points are swung open on the drive levers, so that between the end faces of the press jaws a wide, mouth-like Opening arises, which is the inclusion of the to be connected Pipe ends or a coupling sleeve facilitated.

Beim Verschwenken der Antriebshebel in umgekehrter Richtung werden die Klemmbacken wieder so verschwenkt, daß die Mittelsenkrechten auf ihre Bogenabschnitte in etwa ineinanderfallen und die Klemmbacken beim weiteren Verschwenken der Antriebshebel parallel gegeneinander verschoben werden. Während des Preßvorgangs werden die Klemmbacken weiter gegeneinander bewegt, bis sie am Preßende eine Kreisfläche einschließen und dabei die Rohrenden bzw. die Kupplungshülse entsprechend unter Durchmesserverringerung verformt haben.When swiveling the drive lever in the opposite direction the jaws pivoted again so that the perpendicular bisector on their arc sections approximately collapse and the jaws when pivoting the drive lever further can be moved parallel to each other. During the pressing process the jaws continue to move against each other until they enclose a circular area at the end of the press and thereby the Pipe ends or the coupling sleeve accordingly with a reduction in diameter have deformed.

In der US-A-4 528 74⊘ ist ein gattungsgemäßes Preßwerkzeug zum Verbinden von ineinandergesteckten Rohrenden offenbart, bei dem eine halbkreisförmige Preßbacke mittels eines Stempels in axialer Richtung gegen eine andere, halbkreisförmige Preßbacke verschiebbar ist. Dabei bildet die andere Preßbacke eine Art Widerlager. Diese Preßbacke ist an einem Bügel angeordnet, der auf einer Seite schwenkbar gelagert ist und an der gegenüberliegenden Seite lösbar bzw. verriegelbar ist. Zum Ansetzen des Preßwerkzeuges an das Rohrende wird der Bügel in Öffnungsrichtung geschwenkt und kann nach dem Ansetzen verschlossen werden.In US-A-4 528 74⊘ is a generic pressing tool for Connecting nested pipe ends disclosed in which a semi-circular press jaw by means of a stamp in the axial Direction against another semicircular press jaw is. The other press jaw forms a kind of abutment. This press jaw is arranged on a bracket on one side is pivotally mounted and on the opposite Side is releasable or lockable. For attaching the press tool at the end of the tube the bracket is in the opening direction pivoted and can be locked after attachment.

Diese Preßwerkzeuge haben sich bewährt, wenn eine nicht zu große Durchmesserverkleinerung bzw. Einpreßtiefe gefordert wird. Bei größeren Einpreßtiefen, die dann erforderlich sind, wenn die Rohrverbindung höheren Innendrücken standhalten soll, ist es empfehlenswert, mehr als zwei Preßbacken vorzusehen, damit es zwischen den Stirnseiten der Preßbacken nicht zum Ausbilden von nach außen vorstehenden Stegen kommt, welche ein vollständiges Schließen der Preßbacken verhindern würden. Solche Preßwerkzeuge sind beispielsweise in der DE-OS 21 18 782, DE-OS 35 13 129, DE-AS 25 11 942 und DE-AS 19 ⊘7 956 beschrieben. Allen darin offenbarten Preßwerkzeugen ist gemeinsam, daß sämtliche Preßbacken beweglich und in radialer Richtung geführt sind. Dies bedingt aufwendige Führungen und Antriebseinrichtungen, wodurch die Preßwerkzeuge schwer und deshalb schlecht handhabbar und ferner auch teuer sind.These press tools have proven their worth when one is not too large diameter reduction or press-in depth required becomes. With larger press-in depths which are then required if the pipe connection is to withstand higher internal pressures, it is recommended to provide more than two press jaws, so that it is not between the end faces of the press jaws Forming outwardly protruding webs, which one would prevent the press jaws from closing completely. Such pressing tools are for example in DE-OS 21 18th 782, DE-OS 35 13 129, DE-AS 25 11 942 and DE-AS 19 ⊘7 956. All the pressing tools disclosed therein have in common that all press jaws are movable and in the radial direction are led. This requires complex guides and drive devices, making the pressing tools heavy and therefore difficult to handle and also expensive.

Auch in der US-A-3 276 238 ist ein Preßwerkzeug mit drei Preßbacken offenbart. Zwei der Preßbacken sind auf V-förmig zueinandergerichteten Führungsflächen verschieblich gelagert. Abgesehen davon, daß das Preßwerkzeug handbetätigt ist, dient es dem Aufpressen eines Halteringes auf ein Rohrende Es ist nicht öffenbar ausgebildet und demnach nicht geeignet, zwei Rohre bzw. ein Rohr mit einem Preßfitting zu verbinden.Also in US-A-3,276,238 is a press tool with three press jaws disclosed. Two of the press jaws face each other in a V-shape Guide surfaces slidably mounted. Except that the press tool is manually operated, it serves the Pressing a retaining ring onto a pipe end. It cannot be opened trained and therefore not suitable for two pipes or to connect a pipe with a press fitting.

Der Erfindung liegt die Aufgabe zugrunde, ein Preßwerkzeug der eingangs genannten Art so zu gestalten, daß es trotz der Anordnung von mehr als zwei Preßbacken möglichst einfach und damit leicht handhabbar ausgebildet sowie kostengünstig herstellbar ist.The invention has for its object a press tool type mentioned so that it is despite the arrangement of more than two press jaws as simple as possible and therefore easy to handle and inexpensive to manufacture is.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß mehr als zwei Preßbacken vorhanden sind, wobei zwei Preßbacken auf V-förmig zueinanderstehenden Führungsflächen, gegen die sich die Preßbacken außenseitig abstützen, derart verschieblich geführt sind, daß sie sich beim Preßvorgang jeweils in Richtung auf den Mittelpunkt des Preßraums bewegen. Dieses Preßwerkzeug zeichnet sich trotz der Anordnung von mehr als zwei Preßbacken durch einfachen Aufbau aus. Auch wird die Handhabbarkeit durch das Vorsehen von mehr als zwei Preßbacken nicht beeinträchtigt, da die Bügelkonstruktion und damit die leichte Öffenbarkeit beibehalten wurde. Mit dem erfindungsgemäßen Preßgerät lassen sich grössere Einpreßtiefen erzielen.This object is achieved in that more than two press jaws are present, two press jaws on V-shaped mutually facing guide surfaces against which the pressing jaws support on the outside, guided so displaceably are that they are each in the direction of the pressing process Move the center of the press room. This press tool draws despite the arrangement of more than two press jaws by simple Construction from. The manageability is also provided by the provision not affected by more than two press jaws, since the Bracket construction and thus maintain the easy opening has been. With the pressing device according to the invention, larger ones Achieve press-in depths.

In Ausbildung der Erfindung ist vorgesehen, daß die Preßbacken in Umfangsrichtung gleichlange Kreisbogenabschnitte aufweisen, die Spalte zwischen den jeweils gegenüberliegenden Stirnseiten der Preßbacken also über den Umfang gleichmäßig verteilt sind.In an embodiment of the invention it is provided that the press jaws have circular arc sections of equal length in the circumferential direction, the gap between the opposite ends the press jaws are evenly distributed over the circumference.

Wenn drei Preßbacken vorgesehen sind, sollten die Bewegungsrichtungen der beiden beweglichen Preßbacken einen Winkel von 6⊘° einschließen, der symmetrisch zur Mittelsenkrechten auf das Widerlager liegt und sich von diesem weggerichtet öffnet. Bei vier Preßbacken sollten die Bewegungsrichtungen der beiden dem Widerlager benachbarten Preßbacken beim Preßvorgang einen Winkel von 9⊘° einschließen, der symmetrisch zur Mittelsenkrechten auf das Widerlager liegt und sich von diesem weggerichtet öffnet. If three press jaws are provided, the directions of movement should be of the two movable press jaws an angle of 6⊘ ° include that symmetrical to the perpendicular to the abutment lies and opens away from it. At four press jaws should indicate the directions of movement of the two Abutment adjacent press jaws during the pressing process an angle of 9⊘ °, which is symmetrical to the perpendicular lies on the abutment and opens away from it.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß die bewegbaren Preßbacken einerseits an durch deren Bewegungsrichtungen vorgebenden Führungseinrichtungen und andererseits an einem in Richtung auf das Widerlager bewegbaren Preßstempel anliegen, der mit der Antriebseinrichtung verbunden ist und an dem die dem Widerlager benachbarten Preßbacken verschiebbar gelagert sind. Dabei besteht die Möglichkeit, daß zwischen den zum Preßstempel verschiebbaren Preßbacken eine weitere Preßbacke am Preßstempel anliegt oder mit diesem verbunden ist, die dem Widerlager gegenübersteht. Der Preßstempel ist dabei Teil der Antriebseinrichtung und kann beispielsweise als Hydraulikzylinder ausgebildet oder mit einem solchen verbunden sein. Anstatt eines solchen Preßstempels kann auch für jede bewegliche Preßbacke eine eigene Antriebseinrichtung vorgesehen sein, beispielsweise wiederum jeweils ein Hydraulikzylinder. Dieser kann einen Preß- oder Zugstempel aufweisen.In a further embodiment of the invention it is provided that the movable press jaws on the one hand by their directions of movement default management facilities and on the other a press ram movable in the direction of the abutment, which is connected to the drive device is and on which the press jaws adjacent to the abutment are displaceable are stored. There is a possibility that another between the press jaws that can be moved to the press ram Press jaw rests on the press ram or is connected to it that faces the abutment. The press ram is included Part of the drive device and can, for example, as Hydraulic cylinder designed or connected to such be. Instead of such a press ram can also be used for any movable Press jaw provided its own drive device be, for example, again a hydraulic cylinder. This can have a press or tension stamp.

In der Zeichnung ist die Erfindung anhand eines Ausführungsbeispiels näher veranschaulicht. Es zeigen:

Figur 1
ein Preßwerkzeug in Offenstellung und
Figur 2
das Preßwerkzeug gemäß Figur (1) in Schließstellung.
In the drawing, the invention is illustrated in more detail using an exemplary embodiment. Show it:
Figure 1
a press tool in the open position and
Figure 2
the pressing tool according to Figure (1) in the closed position.

In den Figuren 1 und 2 ist ein Preßwerkzeug 1 dargestellt, und zwar dessen oberes Kopfteil. Es weist ein Werkzeuggehäuse 2 auf, das innen hohl ausgebildet ist und sich nach unten hin zunächst verbreitert und dann konisch zuläuft. Im mittleren Bereich weist es eine U-förmige Ausnehmung 3 auf.In Figures 1 and 2, a press tool 1 is shown, and the upper part of the head. It has a tool housing 2 on, which is hollow on the inside and initially downwards widened and then tapered. In the middle area it has a U-shaped recess 3.

Die freien Enden der Ausnehmung 3 sind durch einen Widerlagerbügel 4 verbunden. Der Widerlagerbügel 4 ist an seiner in dieser Ansicht rechten Seite um einen Lagerbolzen 5 verschwenkbar gelagert. An der in dieser Ansicht linken Seite ist der Widerlagerbügel 4 über einen Sperrbolzen 6 in der gezeigten Stellung fixiert. Dieser Sperrbolzen 6 geht durch entsprechende Ausnehmungen im Werkzeuggehäuse 2 und im Widerlager 4 und kann leicht entfernt werden. Nach seiner Entfernung kann der Widerlagerbügel 4 um den Lagerbolzen 5 in den Richtungen des Doppelpfeils A verschwenkt werden, und zwar im Uhrzeigersinn so weit, daß die Ausnehmung 3 nach oben hin vollständig geöffnet ist. The free ends of the recess 3 are through an abutment bracket 4 connected. The abutment bracket 4 is on it in this Right side view pivotally mounted about a bearing pin 5. On the left side in this view is the abutment bracket 4 via a locking pin 6 in the position shown fixed. This locking pin 6 goes through corresponding recesses in the tool housing 2 and in the abutment 4 and can easily be removed. After its removal, the abutment bracket can 4 around the bearing pin 5 in the directions of the double arrow A be pivoted, clockwise so far that the Recess 3 is completely open towards the top.

Innenseitig hat der Widerlagerbügel 4 eine Preßfläche 7, die Kreisbogenform hat und sich über einen Winkel von 12⊘° symmetrisch zur Längsachse des Preßwerkzeugs 1 erstreckt. Die Preßfläche 7 hat eine in Umfangsrichtung verlaufende, nach innen offene Nut. Sie kann auswechselbar an dem Widerlagerbügel 4 befestigt sein.On the inside, the abutment bracket 4 has a pressing surface 7 which Has a circular arc shape and is symmetrical over an angle of 12⊘ ° extends to the longitudinal axis of the pressing tool 1. The press surface 7 has a circumferential, inward open groove. It can be exchangeably attached to the abutment bracket 4 be.

Innerhalb des Werkzeuggehäuses 2 verlaufen schräge Führungsflächen 8, 9, die einen Winkel von 6⊘° einschließen und spiegelsymmetrisch zur Längsachse des Preßwerkzeugs 1 verlaufen. An den Führungsflächen 8, 9 liegen je eine Preßbacke 1⊘, 11 an, und zwar über entsprechend geneigte Anlageflächen 12, 13. Die Preßbacken 1⊘, 11 sind ebenfalls spiegelsymmetrisch zur Längsachse des Preßwerkzeugs 1 ausgebildet und weisen jeweils eine Preßfläche 14, 15 auf, die jeweils als sich über 12⊘° erstreckende Kreisbogenabschnitte ausgebildet sind. Innenseitig ist auch in sie eine umlaufende Nut eingeformt. Die Kreisbogenabschnitte sämtlicher Preßflächen 7, 14, 15 haben identische Radien. Die Preßbacken 1⊘, 11 ragen untenseitig in eine horizontal und quer zur Längsachse des Preßwerkzeugs 1 verlaufende Führungsnut 16 hinein, die in dem Kopf 17 eines Preßstempels 18 eingeformt ist. Die Unterseiten der Preßbacken 1⊘, 11 verlaufen ebenfalls horizontal, so daß die Preßbacken 1⊘, 11 in der Nut 16 quer zur Längsachse des Preßwerkzeugs 1 verschieblich in der Nut 16 geführt sind, und zwar nach Art einer Schwalbenschwanzführung formschlüssig.Sloping guide surfaces run inside the tool housing 2 8, 9, which include an angle of 6⊘ ° and mirror symmetry run to the longitudinal axis of the pressing tool 1. To the Guide surfaces 8, 9 are each a press jaw 1⊘, 11, and via appropriately inclined contact surfaces 12, 13. The press jaws 1⊘, 11 are also mirror-symmetrical to the longitudinal axis of the pressing tool 1 and each have a pressing surface 14, 15 on, each as extending over 12⊘ ° Circular arc sections are formed. Inside is also in they formed a circumferential groove. The circular arc sections all pressing surfaces 7, 14, 15 have identical radii. The Press jaws 1⊘, 11 project horizontally and transversely on the underside guide groove 16 extending to the longitudinal axis of the pressing tool 1 into it, which are molded into the head 17 of a press ram 18 is. The undersides of the press jaws 1⊘, 11 also run horizontally, so that the press jaws 1⊘, 11 in the groove 16 transverse to Longitudinal axis of the press tool 1 guided in the groove 16 are, in the manner of a dovetail guide form-fitting.

In die unteren Abschnitte der Preßbacken 1⊘, 11 sind quer verlaufende Sacklöcher 19, 2⊘ eingeformt, die koaxial zueinander liegen. In diese Sacklöcher 19, 2⊘ ist eine Druckfeder 21 eingesetzt, die bestrebt ist, die Preßbacken 1⊘, 11 nach außen und damit über die Anlageflächen 12, 13 an die Führungsflächen 8, 9 zu pressen. Der Preßstempel 18 ist vertikal in Richtung der Längsachse des Preßwerkzeugs 1 (Doppelpfeil B) linear beweglich gelagert. Er wird von einem pneumatisch oder hydraulisch beaufschlagten Arbeitszylinder betätigt, der hier nicht näher dargestellt ist.In the lower sections of the press jaws 1⊘, 11 are transverse running blind holes 19, 2⊘ formed, the coaxial lie to each other. In these blind holes 19, 2⊘ is one Compression spring 21 is used, which strives to press jaws 1⊘, 11 to the outside and thus over the contact surfaces 12, 13 to the Press guide surfaces 8, 9. The ram 18 is vertically in the direction of the longitudinal axis of the pressing tool 1 (Double arrow B) linearly movable. He is from one pneumatically or hydraulically operated working cylinder actuated, which is not shown here.

Für den Gebrauch des Preßwerkzeugs 1 wird zunächst die Verriegelung des Widerlagerbügels 4 mittels des Sperrbolzens 6 gelöst, d. h. dieser Sperrbolzen 6 wird herausgezogen und der Widerlagerbügel 4 im Uhrzeigersinn soweit verschwenkt, bis die gabelförmige Öffnung der Ausnehmung 3 vollständig frei ist. Gleichzeitig befindet sich der Preßstempel 18 in einer nach unten zurückgezogenen Sellung. Das Preßwerkzeug 1 kann dann an eine Kupplungshülse 22 derart angesetzt werden, daß sich die Kupplungshülse 22 senkrecht zur Zeichnungsebene durch die Ausnehmung 3 erstreckt und von dieser aufgenommen wird. Dann wird das Widerlager 4 um die Kupplungshülse 22 herumgeschwenkt und durch Einsetzen des Sperrbolzens 6 verriegelt. Die Kupplungshülse 22 ist dann von dem Preßwerkzeug 1 eingeschlossen.For the use of the press tool 1, the lock is first the abutment bracket 4 released by means of the locking bolt 6, d. H. this locking pin 6 is pulled out and the abutment bracket 4 swiveled clockwise until the forked Opening of the recess 3 is completely free. At the same time is the ram 18 in a retracted downward Sale. The press tool 1 can then to a Coupling sleeve 22 are attached so that the coupling sleeve 22 perpendicular to the plane of the drawing through the recess 3 extends and is absorbed by this. Then it will Abutment 4 pivoted around the coupling sleeve 22 and through Inserting the locking pin 6 locked. The coupling sleeve 22 is then enclosed by the press tool 1.

Die Preßbacken 1⊘, 11 werden dann durch Hochfahren des Preßstempels 18 an der Kupplungshülse 23 zur Anlage gebracht. Da ihr Radius um die vorgesehene Einpreßtiefe kleiner ist als der Radius der Kupplungshülse 22 vor dem Verpressen, liegen die Preßflächen 7, 14, 15 nur mit ihren äußeren Querkanten an dem Umfang der Kupplungshülse 22 an. Zwischen den Stirnseiten der Preßbacken 1⊘, 11 und des Widerlagerbügels 4 sind noch freie Spalte 23, 24, 25, die gleichgroß sind. Die Radien der Kreisbogenabschnitte der Preßflächen 7, 14, 15 gehen von Mittelpunkten aus, die in den Spitzen eines gleichseitigen Dreiecks liegen.The press jaws 1⊘, 11 are then raised by pressing the ram 18 brought to bear on the coupling sleeve 23. Because your radius is smaller than the radius by the intended insertion depth the coupling sleeve 22 before pressing, the pressing surfaces are 7, 14, 15 only with their outer transverse edges on the circumference the coupling sleeve 22. Between the end faces of the press jaws 1⊘, 11 and the abutment bracket 4 are still free gaps 23, 24, 25, which are the same size. The radii of the circular arc sections the pressing surfaces 7, 14, 15 start from central points, which lie in the tips of an equilateral triangle.

Durch weitere Druckbeaufschlagung wird nun der Preßstempel 18 nach oben verfahren. Die Preßbacken 1⊘, 11 gleiten dabei über ihre Anlageflächen 12, 13 über die Führungsflächen 8, 9, wodurch ihnen eine in die Richtungen der Doppelpfeile C, D verlaufende Bewegungsrichtung aufgeprägt wird. Die beiden Bewegungsrichtungen schließen denselben Winkel ein wie die Führungsflächen 8, 9, d. h. 6⊘°. Dabei gleiten die Preßbacken 1⊘, 11 in der Nut 16 des Preßstempels 18 gleichzeitig horizontal in Richtung aufeinander zu, und zwar gegen die Wirkung der Druckfeder 21. Auf diese Weise wird die Kupplungshülse 22 radial gestaucht, d. h. in ihrem Durchmesser um die gewünschte Einpreßtiefe verringert. Am Preßende wird von den Preßflächen 7, 14, 15 ein kreisrunder Preßraum eingeschlossen und haben sich die Spalte 23, 24, 25 auf Null verringert.By further pressurization, the ram 18 move upwards. The press jaws 1⊘, 11 slide over their contact surfaces 12, 13 over the guide surfaces 8, 9, whereby one in the direction of the double arrows C, D Direction of movement is impressed. The two directions of movement enclose the same angle as the guide surfaces 8, 9, d. H. 6⊘ °. The press jaws slide 1⊘, 11 in the groove 16 of the ram 18 simultaneously horizontally in the direction towards each other, against the action of the compression spring 21. In this way, the coupling sleeve 22 is radially compressed, d. H. in diameter by the desired press-in depth decreased. At the end of the press, the press surfaces 7, 14, 15 enclosed a circular press room and have the Columns 23, 24, 25 reduced to zero.

Für das Entfernen des Preßwerkzeugs 1 von der Kupplungshülse 22 wird der Preßstempel 18 wieder zurückgefahren. Der Widerlagerbügel 4 wird nach Entfernen des Sperrbolzens 6 weggeschwenkt, so daß dann das Preßwerkzeug 1 weggenommen werden kann.For removing the pressing tool 1 from the coupling sleeve 22 the ram 18 is moved back again. The abutment bracket 4 is pivoted away after removing the locking bolt 6, so that the press tool 1 can then be removed.

Claims (8)

  1. Press tool (1) particularly for connecting tubular work pieces (22), having compression jaws (4, 10, 11) which are movable relative to each other so that they can be opened to be applied to the work piece (22) and that they complement each other at the compression end to form a closed compression space, and also having a drive arrangement for movement of compression jaws (10, 11) in the direction of compression, one (4) of the compression jaws (4, 10, 11) being constructed as an abutment which can be applied to the work piece (22) and is arranged on a yoke that is situated at the free end of the press tool (1) and is swivellably carried at one side and at the other side is releasable or lockable, characterised in that more than two compression jaws (4, 10, 11) are present, two compression jaws (10, 11) being displaceably guided upon guide surfaces (8, 9) disposed in V-formation to each other such that in the compression process they always move in the direction of the centre point of the compression space.
  2. Press tool according to claim 1, characterised in that the compression jaws (4, 10, 11) are movably guided relatively to each other such that their respective neighbouring opposed end surfaces are evenly spaced apart when compression begins.
  3. Press tool according to claim 1 or 2, characterised in that the compression jaws (4, 10, 11) are formed of equal length in the peripheral direction.
  4. Press tool according to one of claims 1 to 3, characterised in that the directions of movement of the two movable compression jaws (10, 11) enclose an angle of 60° which is disposed symmetrically with respect to the central perpendicular of the abutment (4) and opens away from it.
  5. Press tool according to one of claims 1 to 4, characterised in that the movable compression jaws (10, 11) bear, on the one hand against guide arrangements (8, 9) determined by their directions of movement (C, D), and bear on the other hand against a pressure ram (18) which is movable in the direction of the abutment and is connected with the drive arrangement(s) and in which the compression jaws (10, 11) adjoining the abutment (4) are displaceably mounted.
  6. Press tool according to claim 5, characterised in that between the compression jaws (10, 11) that are displaceable relatively to the pressure ram (18), a further pressure jaw is applied or connected to it, disposed opposite to the abutment (4).
  7. Press tool according to one of claims 1 to 6, characterised in that each movable compression jaw is provided with its own drive arrangement.
  8. Press tool according to one of claims 1 to 4 or 7, characterised in that the drive arrangements are formed as pressure or tension rams effective in the respective movement arrangements.
EP94110655A 1990-04-12 1991-04-10 Press tool Expired - Lifetime EP0628362B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4011822 1990-04-12
DE4011822 1990-04-12
EP91105662A EP0451806B1 (en) 1990-04-12 1991-04-10 Press tool

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP91105662.0 Division 1991-04-10
EP91105662A Division EP0451806B1 (en) 1990-04-12 1991-04-10 Press tool

Publications (3)

Publication Number Publication Date
EP0628362A2 EP0628362A2 (en) 1994-12-14
EP0628362A3 EP0628362A3 (en) 1995-06-14
EP0628362B1 true EP0628362B1 (en) 1998-06-17

Family

ID=6404263

Family Applications (4)

Application Number Title Priority Date Filing Date
EP94110655A Expired - Lifetime EP0628362B1 (en) 1990-04-12 1991-04-10 Press tool
EP91105662A Expired - Lifetime EP0451806B1 (en) 1990-04-12 1991-04-10 Press tool
EP91105663A Expired - Lifetime EP0452791B1 (en) 1990-04-12 1991-04-10 Press tool
EP94110654A Expired - Lifetime EP0627273B1 (en) 1990-04-12 1991-04-10 Press tool

Family Applications After (3)

Application Number Title Priority Date Filing Date
EP91105662A Expired - Lifetime EP0451806B1 (en) 1990-04-12 1991-04-10 Press tool
EP91105663A Expired - Lifetime EP0452791B1 (en) 1990-04-12 1991-04-10 Press tool
EP94110654A Expired - Lifetime EP0627273B1 (en) 1990-04-12 1991-04-10 Press tool

Country Status (8)

Country Link
US (1) US5148698A (en)
EP (4) EP0628362B1 (en)
JP (2) JP3334892B2 (en)
AT (4) ATE167414T1 (en)
CA (2) CA2040277C (en)
DE (5) DE9007414U1 (en)
DK (4) DK0452791T3 (en)
ES (4) ES2067077T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010000545A1 (en) 2010-02-25 2011-08-25 Joiner's Bench GmbH, 42859 Hydraulic pressing device

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6044686A (en) * 1990-04-12 2000-04-04 Dischler; Helmut Compression tool for compression molding die
US5598732A (en) * 1990-04-12 1997-02-04 Dischler; Helmut Compression tool
DE9103264U1 (en) * 1991-03-18 1991-06-20 Hewing GmbH, 4434 Ochtrup Pressing pliers for pressing pipe connections
DE4240427C1 (en) * 1992-12-02 1994-01-20 Novopress Gmbh Press tool
DE9216369U1 (en) * 1992-12-02 1993-02-04 Novopress GmbH Pressen und Presswerkzeuge & Co KG, 4040 Neuss Press tool
DE4300934A1 (en) * 1993-01-15 1994-08-18 Hewing Gmbh Press tool for pressing a cylindrical press part or a press part having a cylindrical press section onto a round profile
EP0701492B1 (en) * 1993-06-03 1998-12-02 MANNESMANN Aktiengesellschaft Process for installing a conduit pipe system and device for unreleasable connection
DE4318928C1 (en) * 1993-06-03 1994-08-25 Mannesmann Ag Process for the installation of a pipeline system
DE19543312C2 (en) * 1995-11-03 1997-10-23 Rothenberger Werkzeuge Masch Pressing device for the radial pressing of line connectors
EP0771615A1 (en) 1995-11-03 1997-05-07 Rothenberger Werkzeuge AG Crimping device for radially crimping tube connections
DE29517518U1 (en) * 1995-11-04 1996-05-30 Novopress GmbH Pressen und Presswerkzeuge & Co KG, 41460 Neuss Press tool
DE59608466D1 (en) * 1995-11-04 2002-01-24 Novopress Gmbh METHOD FOR CONNECTING A TUBE TO A PRESS FITTING AND COMBINATION OF PRESS FITTING, TUBE AND PRESSING DEVICE
DE29602240U1 (en) * 1996-02-09 1997-06-19 Novopress GmbH Pressen und Presswerkzeuge & Co KG, 41460 Neuss Pressing device
DE59705051D1 (en) * 1996-08-17 2001-11-29 Novopress Gmbh Process for connecting workpieces and pressing device therefor
DE19637608C1 (en) * 1996-09-16 1997-10-23 Novopress Gmbh Connection between pipe coupling and pipe end
DE29703052U1 (en) 1997-02-21 1997-04-03 Novopress GmbH Pressen und Presswerkzeuge & Co KG, 41460 Neuss Press device for connecting workpieces
US6035775A (en) * 1997-02-21 2000-03-14 Novopres Gmbh Pressen Und Presswerkzeuge & Co. Kg Pressing device having a control device adapted to control the pressing device in accordance with a servocontrol system of the control device
US6240626B1 (en) 1997-02-21 2001-06-05 Novopress Gmbh Pressen Und Presswerkzauge & Co. Kg Pressing device
EP0904168A1 (en) * 1997-03-11 1999-03-31 Gustav Klauke GmbH Pressing tool
EP0882531A3 (en) * 1997-05-28 2002-10-16 Fränkische Rohrwerke Gebr. Kirchner GmbH & Co. Machining device, in particular a crimping tool
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
US6217191B1 (en) 1998-05-29 2001-04-17 Jeng-Shyong Wu Multiple lamp socket device
PT990490E (en) * 1998-10-02 2002-03-28 Oetiker Hans Maschinen DEVICE FOR PLACEMENT OR TIGHTENING OF A RING-SHAPED RETAINING ORGA
DE19938968A1 (en) 1999-08-17 2001-03-01 Novopress Gmbh Manageable working device, in particular a pressing device
DE19945113A1 (en) 1999-09-21 2001-03-29 Novopress Gmbh Process for connecting a press fitting to a pipe and press fitting, pipe and pressing device for carrying out this process
DE50006944D1 (en) 1999-10-26 2004-08-05 Ridge Tool Ag Balzers Press tool and method for cold forming joining of workpieces
CH693984A5 (en) * 1999-10-26 2004-05-28 Ridge Tool Ag Press tool for cold shaping a joint between two pipes at their inserted overlap has press pads with openings brought together around the pipe joint for the application of force to give a cold shaping on the workpieces
DE19958103C1 (en) * 1999-12-02 2001-03-01 Peter Schroeck Press tool for rotationally symmetrical hollow workpieces e.g. pipe fittings, has press surfaces displaced radially via 2 outer control bodies provided with angled control surfaces acting on inner control bodies
DE10107579B4 (en) * 2000-10-19 2012-04-26 Gustav Klauke Gmbh Pressing tool for pressing pipe ends and press insert for a pressing jaw of a pressing tool
DE20018312U1 (en) * 2000-10-26 2001-05-10 Franz Viegener II GmbH & Co. KG, 57439 Attendorn Press tool
DE10106363C1 (en) * 2001-02-12 2002-06-06 Rothenberger Werkzeuge Ag Pressing head for connecting pipe lines has double-armed lever tongs with pressure members mounted by oppositely acting parallelogram rod units whose articulation axes are each side
CA2458033C (en) * 2001-09-11 2010-06-08 Emerson Electric Co. Crimping assembly
KR100460205B1 (en) * 2002-06-01 2004-12-09 주식회사 서원기술 a pipe press tool
US20030230132A1 (en) * 2002-06-17 2003-12-18 Emerson Electric Co. Crimping apparatus
US6923037B2 (en) * 2002-06-17 2005-08-02 Emerson Electric Co. Assembly for articulating crimp ring and actuator
DE10237406A1 (en) * 2002-08-12 2004-03-11 Mapress Gmbh & Co. Kg press tool
US7000448B2 (en) * 2003-02-12 2006-02-21 Emerson Electric Co. Compression tool jawarm member
DE20309747U1 (en) * 2003-06-25 2003-09-11 V-Team American Bikes + Products GmbH, 49479 Ibbenbüren Device for forming tubular semi-finished products
DE202004007032U1 (en) * 2004-04-30 2005-09-15 Viega Gmbh & Co Kg Pressing tool for pipe fittings has two jaws with pressing element mounted movable between same and moving up to workpiece which is to be pressed to produce uniform pressing action
US7188508B2 (en) * 2004-08-02 2007-03-13 Emerson Electric Co. Jaw arm for compression tools
DE202006004876U1 (en) * 2006-03-28 2007-08-02 Herrle, Richard Pressing tool, press ring and pressing tongs
KR100762293B1 (en) * 2007-03-30 2007-10-01 주식회사 다성테크 Apparatus for press-connecting pipes
DE102007047339A1 (en) 2007-10-04 2009-04-09 Novartec Ag Pressing tool for pressing casing part and work piece i.e. fitting with pipe-ends, has pressing surfaces lying partially between die stocks, and die stocks connected with pressing units in detachable manner in middle area of surfaces
DE202008002200U1 (en) 2008-02-15 2009-03-26 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Hand-held pressing device
DE202008006831U1 (en) 2008-05-20 2009-06-25 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Hand-operated pressing device
DE102008027812A1 (en) 2008-06-11 2010-01-14 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Method for connecting two workpieces and press fitting therefor
JP5528689B2 (en) * 2008-09-05 2014-06-25 Ｎｔｎ株式会社 Constant velocity universal joint assembly method
DE102009032113B4 (en) 2009-07-08 2011-06-01 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Pressing tool and method for pressing in particular tubular workpieces
DE202009009456U1 (en) 2009-07-15 2010-11-25 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kommanditgesellschaft Pressing tool for connecting in particular tubular workpieces
CN102054774B (en) 2009-10-28 2012-11-21 无锡华润上华半导体有限公司 VDMOS (vertical double diffused metal oxide semiconductor) transistor compatible LDMOS (laterally diffused metal oxide semiconductor) transistor and manufacturing method thereof
DE202010000402U1 (en) 2010-03-18 2010-07-01 Joiner's Bench Gmbh Pressing device with a simplified structure
DE202011004815U1 (en) 2011-04-04 2011-06-01 Novopress GmbH Pressen und Presswerkzeuge & Co. KG, 41460 Pressing tool and pressed press fitting
DE202011004817U1 (en) 2011-04-04 2011-06-01 Novopress GmbH Pressen und Presswerkzeuge & Co. KG, 41460 Pressing tool and pressed press fitting
ES2523512T3 (en) 2011-04-04 2014-11-26 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Pressing tool as well as use of a similar pressing tool
DE202011100316U1 (en) 2011-05-05 2011-07-14 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Pressing tool and pressed press fitting
DE202011101995U1 (en) 2011-06-17 2012-09-19 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg press member
US9388885B2 (en) 2013-03-15 2016-07-12 Ideal Industries, Inc. Multi-tool transmission and attachments for rotary tool
DE202013007496U1 (en) 2013-08-21 2014-11-28 Novopress Gmbh Pressen Und Presswerkzeuge & Co. Kg Pressing sling for connecting in particular tubular workpieces
US10226826B2 (en) 2013-10-22 2019-03-12 Milwaukee Electric Tool Corporation Hydraulic power tool
DE102014115358A1 (en) * 2014-10-22 2016-04-28 Michael Schmitz press tool
CN105798169B (en) * 2016-03-16 2018-09-04 成都艾亿洋机电有限公司 A kind of card pressing tongs
CN106583569B (en) * 2017-01-23 2018-02-23 湖南金峰金属构件有限公司 A kind of multiple-unit combines cold extrusion press
DE102019217816A1 (en) 2018-11-29 2020-06-04 Ridge Tool Company TOOL HEADS FOR SHEARING
CN112122471A (en) * 2020-06-28 2020-12-25 浙江赛格园林机械有限公司 Annular pipe-impacting and shrinking machine
CN112122472A (en) * 2020-06-28 2020-12-25 浙江赛格园林机械有限公司 Pipe reducing device of pipe reducing machine
EP4059629A1 (en) * 2021-03-17 2022-09-21 Viega Technology GmbH & Co. KG Crimping die, driven crimping die, press insert and system for pressing fittings with tubes

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211008A (en) * 1940-02-07 1940-08-13 Martin J Goldberg Hose coupling attaching apparatus
US2326709A (en) * 1941-07-23 1943-08-10 William U Watson Tool
US2381748A (en) * 1942-11-02 1945-08-07 Chicago Forging & Mfg Co Method of forming joints
US2973024A (en) * 1958-07-28 1961-02-28 Aeroquip Corp Assembly tool
DE1198147B (en) * 1958-07-28 1965-08-05 Aeroquip Ag Assembly tool for swiveling the clamping jaws of a hose holder into the clamping position
DE1187870B (en) * 1958-10-01 1965-02-25 Aga Plaatfoeraedling Aktiebola Plastically deformable metal coupling sleeve for connecting metal pipes with smooth ends
US3220072A (en) * 1962-04-13 1965-11-30 Doris Moss Oldacre Clamp structure and assembly tool therefor
US3276238A (en) * 1964-05-18 1966-10-04 Waldes Kohinoor Inc Plier-like assembly tool
US3203221A (en) * 1963-08-26 1965-08-31 Waldes Kohinoor Inc Plier-type retaining ring assembly tool
FR1426844A (en) * 1965-03-30 1966-01-28 Method and apparatus for making rebar connections
US3575036A (en) * 1967-09-13 1971-04-13 Amp Inc Crimping tool and die assembly
AU411164B2 (en) * 1968-02-19 1971-02-26 RUSSELL DUFFIELD and CLAUDE HARCOURT HARVEY FREDERICK Improved crimping or compression device
US3662450A (en) * 1970-04-24 1972-05-16 Dresser Ind Hand-portable press for swagable pipe coupling
US3688553A (en) * 1970-06-09 1972-09-05 Henry William Demler Sr Tube coupling
US3695087A (en) * 1970-08-26 1972-10-03 Arthur H Tuberman Method and apparatus for pointing tubes
DE2136782C2 (en) * 1971-07-23 1982-12-02 Novopress GmbH Pressen und Presswerkzeuge & Co KG, 4000 Düsseldorf Portable pressure fluid operated clamping tool
US3756064A (en) * 1972-03-24 1973-09-04 Waldes Kohinoor Inc Hand-operated plier-like tools
US3823597A (en) * 1973-07-02 1974-07-16 Mc Donnell Douglas Corp Swaging tool die extender
CH580473A5 (en) * 1974-07-08 1976-10-15 Oetiker Hans
US4183120A (en) * 1978-05-19 1980-01-15 Thorne George W Encircling devices
US4276765A (en) * 1979-06-14 1981-07-07 Rikizo Yoneda Pressing device for a hose coupler
US4528740A (en) * 1983-04-18 1985-07-16 Msw Corporation Shrink ring clamp assembly
JPS60141456A (en) * 1983-12-28 1985-07-26 Toyoda Gosei Co Ltd Pinching apparatus
DE3423283A1 (en) * 1984-06-23 1986-01-02 Helmut Dipl.-Ing. 4040 Neuss Dischler Clamping tool, in particular for connecting tubes and other sections
DE3513129A1 (en) * 1985-04-12 1986-10-23 Peter Dipl.-Ing. 6000 Frankfurt Schröck Radial press having a plurality of pressure medium drives arranged in a radial fashion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010000545A1 (en) 2010-02-25 2011-08-25 Joiner's Bench GmbH, 42859 Hydraulic pressing device
EP2361701A1 (en) 2010-02-25 2011-08-31 Joiner's Bench GmbH Hydraulic radial pressing device

Also Published As

Publication number Publication date
ES2062596T3 (en) 1994-12-16
CA2040278C (en) 2001-10-02
ATE167414T1 (en) 1998-07-15
CA2040277A1 (en) 1991-10-13
CA2040277C (en) 2001-12-04
EP0451806A1 (en) 1991-10-16
ATE175599T1 (en) 1999-01-15
ES2067077T3 (en) 1995-03-16
US5148698A (en) 1992-09-22
JP3334892B2 (en) 2002-10-15
EP0451806B1 (en) 1995-01-11
DE59104196D1 (en) 1995-02-23
EP0628362A3 (en) 1995-06-14
ES2129089T3 (en) 1999-06-01
DK0628362T3 (en) 1999-04-06
DE59109090C5 (en) 2011-01-05
ES2119935T3 (en) 1998-10-16
EP0627273A3 (en) 1995-06-14
EP0628362A2 (en) 1994-12-14
EP0452791B1 (en) 1994-09-14
DK0452791T3 (en) 1994-12-12
JPH0768330A (en) 1995-03-14
CA2040278A1 (en) 1991-10-13
DK0451806T3 (en) 1995-05-22
ATE116880T1 (en) 1995-01-15
EP0452791A1 (en) 1991-10-23
DE9007414U1 (en) 1991-07-18
DE59109090D1 (en) 1999-02-25
DK0627273T3 (en) 1999-09-06
JPH0768329A (en) 1995-03-14
DE59102895D1 (en) 1994-10-20
DE59109014D1 (en) 1998-07-23
ATE111385T1 (en) 1994-09-15
EP0627273A2 (en) 1994-12-07
EP0627273B1 (en) 1999-01-13

Similar Documents

Publication Publication Date Title
EP0628362B1 (en) Press tool
DE3423283C2 (en)
DE69423929T2 (en) Inner tube clamp for alignment
DE4240427C1 (en) Press tool
EP2744626B1 (en) Pressing device
DE3113370A1 (en) DEVICE AND METHOD FOR USE IN WELDING TWO COMPONENTS
EP1114698A2 (en) Crimping pliers
EP0671985A1 (en) Pressing tool.
DE4003201C2 (en) Quick coupling device for forging and transport manipulators
DE3142279A1 (en) &#34;HOLDING PLIERS WITH INFLATABLE GRIP COVER&#34;
DE2801249C2 (en) Deburring device in a butt welding machine guided on a rail line to be deburred
DE2656210C3 (en) Drill string holders for rock drilling rigs
DE3009168C2 (en) Device for pressure testing hose lines with metal fittings
DE3241746C2 (en)
EP2361701B1 (en) Hydraulic radial pressing device
DE4200020C1 (en) Hollow, cylindrical workpiece widening tool - has rack teeth on sliding mandrel meshing with teeth on hinged, L=shaped handle
DE2249506C3 (en) Pneumatically operated vice
DE19842765A1 (en) Crimped connection making device for hoses, cables and tubes, with drive device including drive members pivoted to press punches
DE2411112C3 (en) Hydraulic clamping cylinder drive for block tongs
DE29517518U1 (en) Press tool
DE19813854A1 (en) Device for crimp-fastening parts e.g. hoses, cables, tubes etc.
DE2827343A1 (en) Fixture for making fabricated cylindrical vessel - has segmented clamping straps and pressure applying rollers adjacent to joins
DE20304017U1 (en) Press tool for joining together pipes or tubes, has compaction unit only protruding beyond drive mechanism on one side
DE2159885C3 (en) Device for pressing a pipe onto a part lying inside the pipe
DE1502783C (en) Device for edging or trimming metal strips 1

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

AC Divisional application: reference to earlier application

Ref document number: 451806

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: A2

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

17P Request for examination filed

Effective date: 19950619

17Q First examination report despatched

Effective date: 19960805

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

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

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

AC Divisional application: reference to earlier application

Ref document number: 451806

Country of ref document: EP

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 167414

Country of ref document: AT

Date of ref document: 19980715

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59109014

Country of ref document: DE

Date of ref document: 19980723

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

Effective date: 19980730

ITF It: translation for a ep patent filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2119935

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

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

Ref country code: LU

Payment date: 20000421

Year of fee payment: 10

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

Ref country code: DK

Payment date: 20000427

Year of fee payment: 10

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

Ref country code: LU

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

Effective date: 20010410

Ref country code: DK

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

Effective date: 20010410

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: GB

Payment date: 20020318

Year of fee payment: 12

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

Ref country code: NL

Payment date: 20020416

Year of fee payment: 12

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

Ref country code: BE

Payment date: 20020419

Year of fee payment: 12

Ref country code: AT

Payment date: 20020419

Year of fee payment: 12

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

Ref country code: SE

Payment date: 20020422

Year of fee payment: 12

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

Ref country code: ES

Payment date: 20020424

Year of fee payment: 12

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: 20030410

Ref country code: AT

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

Effective date: 20030410

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

Ref country code: SE

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

Effective date: 20030411

Ref country code: ES

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

Effective date: 20030411

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: 20030430

BERE Be: lapsed

Owner name: *DISCHLER HELMUT

Effective date: 20030430

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: 20031101

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

Effective date: 20031101

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20030410

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030411

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

Ref country code: FR

Payment date: 20060420

Year of fee payment: 16

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

Ref country code: IT

Payment date: 20060430

Year of fee payment: 16

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: 20070430

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

Effective date: 20070410

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: ALDO ROEMPLER PATENTANWALT

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

Ref country code: CH

Payment date: 20100426

Year of fee payment: 20

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

Ref country code: DE

Payment date: 20100624

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59109014

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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 EXPIRATION OF PROTECTION

Effective date: 20110410