EP0628362B1 - Outil de pressage - Google Patents

Outil de pressage Download PDF

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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)
English (en)
Other versions
EP0628362A3 (fr
EP0628362A2 (fr
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
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Application filed by Individual filed Critical Individual
Publication of EP0628362A2 publication Critical patent/EP0628362A2/fr
Publication of EP0628362A3 publication Critical patent/EP0628362A3/fr
Application granted granted Critical
Publication of EP0628362B1 publication Critical patent/EP0628362B1/fr
Anticipated expiration legal-status Critical
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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.

Claims (8)

  1. Outil de pressage (1), notamment pour l'assemblage de pièces tubulaires (22), avec des mâchoires de pressage (4, 10, 11) qui sont à mobilité relative de telle sorte qu'elles peuvent être ouvertes pour être mises en place sur la pièce (22) et qu'elles se complètent, vers la fin du pressage, en un espace fermé de pressage, et avec un dispositif d'entraínement pour déplacer les mâchoires de pressage (10, 11) dans la direction de pressage, une (4) des mâchoires de pressage (4, 10, 11) étant conçue comme contre-appui pouvant être appliqué contre la pièce (22) et étant disposée sur un étrier, qui se trouve à l'extrémité libre de l'outil de pressage (1) et qui est monté à pivotement sur un côté et peut être libéré ou verrouillé sur le côté opposé.
    caractérisé en ce que plus de deux mâchoires de pressage (4, 10, 11) sont présentes, deux mâchoires de pressage (10, 11) étant guidées en coulissement, sur des faces de guidage (8, 9) formant un V entre elles, de telle sorte que, lors de l'opération de pressage, elles se déplacent respectivement en direction du centre de l'espace de pressage.
  2. Outil de pressage selon la revendication 1, caractérisé en ce que les mâchoires de pressage (4, 10, 11) sont guidées en mobilité relative de telle sorte que leurs faces frontales respectives mutuellement opposées et voisines présentent des distances identiques entre elles au début du pressage.
  3. Outil de pressage selon la revendication 1 ou 2, caractérisé en ce que les mâchoires de pressage (4, 10, 11) sont réalisées de même longueur en direction circonférentielle.
  4. Outil de pressage selon une des revendications 1 à 3, caractérisé en ce que les directions de déplacement des deux mâchoires de pressage mobiles (10, 11) forment un angle de 60° qui est symétrique par rapport à la médiatrice du contre-appui (4) et s'ouvre en éloignement de ce dernier.
  5. Outil de pressage selon une des revendications 1 à 4, caractérisé en ce que les mâchoires de pressage mobiles (10, 11) s'appliquent d'une part contre des dispositifs de guidage (8, 9) définissant leurs directions de déplacement (C, D) et d'autre part contre un vérin presseur (18) mobile en direction du contre-appui, vérin qui est relié au(x) dispositif(s) d'entraínement et sur lequel les mâchoires de pressage (10, 11) voisines du contre-appui (4) sont montées à coulissement.
  6. Outil de pressage selon la revendication 5, caractérisé en ce qu'une mâchoire de pressage supplémentaire, qui fait face au contre-appui (4), s'applique contre le vérin presseur (18) entre les mâchoires de pressage (10, 11) pouvant être déplacées par rapport au vérin presseur (18), ou est assemblée à ce dernier.
  7. Outil de pressage selon une des revendications 1 à 6, caractérisé en ce que chaque mâchoire de pressage mobile est dotée d'un propre dispositif d'entraínement.
  8. Outil de pressage selon une des revendications 1 à 4 ou 7, caractérisé en ce que les dispositifs d'entraínement sont conçus sous la forme de vérins presseurs ou de traction actifs dans la direction de déplacement respective.
EP94110655A 1990-04-12 1991-04-10 Outil de pressage Expired - Lifetime EP0628362B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4011822 1990-04-12
DE4011822 1990-04-12
EP91105662A EP0451806B1 (fr) 1990-04-12 1991-04-10 Outil de pressage

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP91105662A Division EP0451806B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP91105662.0 Division 1991-04-10

Publications (3)

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

Family

ID=6404263

Family Applications (4)

Application Number Title Priority Date Filing Date
EP94110655A Expired - Lifetime EP0628362B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP94110654A Expired - Lifetime EP0627273B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP91105662A Expired - Lifetime EP0451806B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP91105663A Expired - Lifetime EP0452791B1 (fr) 1990-04-12 1991-04-10 Outil de pressage

Family Applications After (3)

Application Number Title Priority Date Filing Date
EP94110654A Expired - Lifetime EP0627273B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP91105662A Expired - Lifetime EP0451806B1 (fr) 1990-04-12 1991-04-10 Outil de pressage
EP91105663A Expired - Lifetime EP0452791B1 (fr) 1990-04-12 1991-04-10 Outil de pressage

Country Status (8)

Country Link
US (1) US5148698A (fr)
EP (4) EP0628362B1 (fr)
JP (2) JPH0768329A (fr)
AT (4) ATE111385T1 (fr)
CA (2) CA2040277C (fr)
DE (5) DE9007414U1 (fr)
DK (4) DK0628362T3 (fr)
ES (4) ES2129089T3 (fr)

Cited By (1)

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

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EP2361701A1 (fr) 2010-02-25 2011-08-31 Joiner's Bench GmbH Dispositif de presse hydraulique radiale

Also Published As

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

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