EP2361701A1 - Dispositif de presse hydraulique radiale - Google Patents

Dispositif de presse hydraulique radiale Download PDF

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Publication number
EP2361701A1
EP2361701A1 EP11155733A EP11155733A EP2361701A1 EP 2361701 A1 EP2361701 A1 EP 2361701A1 EP 11155733 A EP11155733 A EP 11155733A EP 11155733 A EP11155733 A EP 11155733A EP 2361701 A1 EP2361701 A1 EP 2361701A1
Authority
EP
European Patent Office
Prior art keywords
pressing
frame
pressing device
jaw
piston
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
EP11155733A
Other languages
German (de)
English (en)
Other versions
EP2361701B1 (fr
Inventor
Michael Schmitz
Luciano Sgarra
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.)
Joiner's Bench GmbH
Original Assignee
Joiner's Bench GmbH
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 Joiner's Bench GmbH filed Critical Joiner's Bench GmbH
Publication of EP2361701A1 publication Critical patent/EP2361701A1/fr
Application granted granted Critical
Publication of EP2361701B1 publication Critical patent/EP2361701B1/fr
Active legal-status Critical Current
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
    • 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

Definitions

  • the invention relates to a pressing device for the radial compression of workpieces, in particular pipes or fittings for pipes.
  • Pressing devices for radial compression of pipes are known in numerous embodiments.
  • a pressing tool is known in which the workpiece is surrounded by a closed frame.
  • pressure can be applied to two movable dies within the frame so that they are urged by sliding along V-shaped guide surfaces in a mirror-image motion toward the center of the workpiece.
  • the invention has set itself the task of providing an alternative embodiment of a pressing device, which should be easy to handle especially in the processing of large workpiece diameters for the user.
  • the pressing device described has the advantage that the - typically very high - pressing forces can be transmitted via a hydraulic fluid, since they are converted only at the pressing device itself into a mechanical movement of the pressing jaws. In contrast to known pressing methods, it is thus not necessary to bring a comparatively heavy pressing tongs to the device and to couple them mechanically. This considerably facilitates the handling of the device.
  • the at least one piston and the associated cylinder are arranged in a separate piston carrier, which is reversibly coupled to the frame.
  • the frame can first be applied to the workpiece. After this is done, then the piston carrier can be coupled to the frame, so that then by pressing on the hydraulic fluid, the pressing process can take place. After completion of the pressing, the piston carrier can be released from the frame and the frame removed from the workpiece.
  • the piston and the cylinder are integrated in the frame. In this way, a very compact pressing device can be realized, in which the total weight of the frame and piston is minimal.
  • the pressing device preferably includes a quick coupling for coupling a hydraulic supply line to the cylinder. This makes it possible to decouple the usually heavy equipment for generating a sufficiently high hydraulic pressure from the pressing device to create the latter as unhindered as possible to a workpiece can. After positioning the pressing device on the workpiece can then be connected via the quick coupling quickly and easily a hydraulic supply line to supply the energy for the pressing process. At the end of the pressing process, the hydraulic supply line can just as easily be disconnected from the quick-release coupling and the pressing device removed from the workpiece.
  • the primary pressing jaw may be arranged inside the frame so that it is displaced by the piston only in the radial direction with respect to the (approximate) center of the frame (corresponding to the central region of a workpiece in the frame).
  • the advantage of this is that the piston and the primary pressing jaw need only perform a simple, rectified linear motion.
  • the frame of the pressing device may optionally be in one piece.
  • the frame consists of several parts that are fixed or hinged together.
  • a multi-part frame of the aforementioned type consists of two transverse brackets and two side brackets.
  • these four brackets here form a parallelogram, in which the cross brace on the one hand and side brackets on the other face.
  • a multi-part frame is provided as a part of the frame, a cross bar, which is pivotally mounted at one end and releasably connected at the opposite end to the next frame part. After releasing the said connection, the frame can then be opened by pivoting the cross bar. This makes it possible, a workpiece such. B. to introduce a long pipe in the frame. After inserting the workpiece, the frame can be closed around the workpiece by reconnecting the crossbar to the next frame part.
  • At least one stationary pressing jaw is formed on the frame. This is preferably arranged diametrically opposite the primary pressing jaw, so that the movable primary pressing jaw approaches the stationary pressing jaw during the pressing process.
  • At least one secondary pressing jaw can be movably mounted on the frame of the pressing device.
  • two or more such movable dies are provided, which are arranged symmetrically with respect to a workpiece to be inserted.
  • the embodiment described above can be further developed in that the primary pressing jaw is in force-transmitting contact with the secondary pressing jaw.
  • a compact construction can be achieved, since the piston of the pressing device only has to act on the primary pressing jaw, which then transfers the force in a chain to the secondary pressing jaw (s).
  • the at least one secondary pressing jaw may be in contact with the primary pressing jaw and / or the frame over operative surfaces such that the secondary pressing jaw is moved radially inwardly with respect to the machined workpiece upon a pressing movement of the primary pressing jaw.
  • the pressing movement of the primary pressing jaw triggered by the piston is transferred to the movable secondary pressing jaw, whereby a desired (i.e., radially inward-directed) movement of the secondary pressing jaw is produced via suitable shaping of the force-transmitting active surfaces.
  • a first active surface and on the primary pressing jaw another active surface may be formed, which (with respect to an imaginary extension of the active surfaces) form an angle with each other, wherein the intersection of the (extension of) the active surfaces in a radially inwardly directed pressing movement the primary die also moves radially inward.
  • the two active surfaces can thus drive a secondary pressing jaw resting against them quasi radially inwards in front of them.
  • the active surfaces it should be noted that in the plane of the frame, the active surfaces each define a line and that then said angle and said intersection are formed by these lines.
  • the invention further includes embodiments in which the frame parts form an open chain which is closed by the movable primary die (i.e., the ends of the chain are connected by the primary die).
  • the frame parts form an open chain which is closed by the movable primary die (i.e., the ends of the chain are connected by the primary die).
  • Such an embodiment has the advantage that it is possible to dispense with a frame part, since its function in the frame part chain is taken over by the primary pressing jaw. This reduces the weight and the manufacturing cost of the pressing device.
  • a particular embodiment of this construction results when the frame includes two side brackets and one crossbar, the side brackets being coupled at one end by the cross bar and at the other end by the primary press jaw.
  • At least two separate (preferably identically formed) piston carriers are present, which can be reversibly coupled with different frame parts (for example, the above-mentioned side bars).
  • frame parts for example, the above-mentioned side bars.
  • a separate piston carrier can in particular be reversibly coupled to the frame by means of a bolt, the bolt being guided through aligned openings in the frame Piston carrier and put in the frame. In this way, a simple and stable quick coupling can be achieved.
  • the problem may arise that the bolt lies exactly in the space between the primary pressing jaw and the piston of the piston carrier, thus standing in the way of an immediate effect of the piston on the primary pressing jaw.
  • the piston carrier has a movable punch with a slot, the bolt engages through this slot.
  • the punch thus remains movable along the slot and can transmit power from the piston to the die.
  • the stamp may be formed integrally with the piston or be a separate part.
  • FIGS. 1 to 11 shows a first embodiment of a pressing device 100 according to the invention for workpieces, for example for the compression of fittings on pipes.
  • the secondary pressing jaws 130, 130 ' have on their outer sides effective areas W2 and W3. These work together with corresponding active surfaces W1 on the first transverse bow 110 and W4 on the primary pressing jaw 140 in such a way that the secondary pressing jaws 130, 130 'are pushed radially inwards (positive or negative x-direction in FIG FIG. 4 ), when the primary pressing jaw 140 moves radially inward (positive y-direction in FIG FIG. 4 ).
  • the active surfaces W1-W4 extend at an angle of typically about 35 ° to 55 ° relative to the press axis (y-axis in FIG. 4 ). Furthermore, the active surfaces are preferably located symmetrically to the main axes of the pressing device 100 (x, y axis in FIG. 4 ).
  • To the pressing device 100 further includes a piston carrier 160.
  • a piston carrier 160 In this two cylinders Z1 and Z2 are formed, in which two pistons K1 and K2 are guided (see. FIG. 6 ).
  • the piston carrier 160 has a quick coupling 161, to which a hydraulic supply line (not shown) can be connected.
  • a hydraulic fluid supplied thereto e.g. As a hydraulic oil, can then spread over the quick coupling 161 in the cylinder Z1 and Z2 and exert a pressure on the piston K1 and K2, by which they are moved in the y direction.
  • the piston carrier 160 is fixedly arranged in the second cross bar 150, which has a corresponding cavity for this purpose. Furthermore, both the piston carrier 160 and the second cross bar 150 have aligned transverse bores 162 and 152, respectively, through which Bolt (not shown) can be performed to firmly anchor the piston carrier 160 in the second cross bar 150.
  • Bolt (not shown) can be performed to firmly anchor the piston carrier 160 in the second cross bar 150.
  • other mechanisms could be provided for this purpose, such as a bayonet lock or screw mounting a piston carrier in the second crossbar 150.
  • the piston carriers 160 and the frame parts 150 of differently designed embodiments are incompatible, so that a lighter frame is not inadvertently coupled with a strong piston carrier or vice versa.
  • An advantage of the second pressing device 200 with the integrated piston is that it can be made very compact and space-saving, because it can be dispensed with double walls, coupling mechanisms and the like.
  • the third pressing device 300 has no second cross bar. Instead, the primary pressing jaw 340 connects the two still free ends of the side bars 320 and 320 '.
  • the third pressing device 300 has two separate, identically designed piston carriers 360 and 360 ', wherein each of these piston carriers can be reversibly coupled to a free end (which projects beyond the primary pressing jaw 340) of the side brackets 320 and 320'.
  • a piston carrier for example, the piston carrier 360 exemplified below - by means of a bolt 362, which is guided by aligned openings in the associated side bracket 320 on the one hand and in the piston carrier 360 on the other.
  • the bolt 362 is necessarily located in the third pressing device 300 in the area between the piston K1 and the primary pressing jaw 340.
  • the piston carrier 360 includes a movable, in the top view fork-shaped punch 364 (FIG. FIG. 24 ), which is arranged between two cheeks 363 and has a slot or a slot 365 in its arms. Through this slot 365, the bolt 362 can be performed without preventing a (limited) linear movement of the punch 364.
  • the punch 364 may thus transmit motion or force from the piston K1 to the primary die 340.
  • a workpiece to be pressed such as a fitting
  • the two piston carriers 360, 360 ' are coupled via the bolts 362 and subjected to pressure from a hydraulic supply line (not shown), whereby their pistons K1 move uniformly in the pressing direction.
  • this movement is transmitted to the primary pressing jaw 340, while at the same time the remaining piston carrier 360, 360 'on the cheeks 363 on the side arms 320, 320' of the Frame "holds".
  • this results in a movement of the primary pressing jaw 340 which is directed radially inwardly towards the opposing, fixed pressing jaw 310.
  • the secondary pressing jaws 330 and 330 ' are also driven radially inwardly (x-direction for these pressing jaws). This is done by the active surfaces W1 standing at an angle ⁇ to one another on the transverse bow 310 or W4 on the primary pressing jaw 340, the (imaginary) point of intersection of these active surfaces also moving radially inward during a radial inward movement of the primary pressing jaw 340 (ie in x-direction).
  • the active surfaces W1 standing at an angle ⁇ to one another on the transverse bow 310 or W4 on the primary pressing jaw 340, the (imaginary) point of intersection of these active surfaces also moving radially inward during a radial inward movement of the primary pressing jaw 340 (ie in x-direction).
  • ⁇ the active surfaces W1 standing at an angle ⁇ to one another on the transverse bow 310 or W4 on the primary pressing jaw 340

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
EP20110155733 2010-02-25 2011-02-24 Dispositif de presse hydraulique radiale Active EP2361701B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010000545 DE102010000545A1 (de) 2010-02-25 2010-02-25 Hydraulische Pressvorrichtung

Publications (2)

Publication Number Publication Date
EP2361701A1 true EP2361701A1 (fr) 2011-08-31
EP2361701B1 EP2361701B1 (fr) 2014-03-05

Family

ID=43880964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20110155733 Active EP2361701B1 (fr) 2010-02-25 2011-02-24 Dispositif de presse hydraulique radiale

Country Status (2)

Country Link
EP (1) EP2361701B1 (fr)
DE (1) DE102010000545A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2687300A3 (fr) * 2012-07-19 2016-08-24 DMC Power, Inc. Outil de sertissage de tête oscillante
IT201900018428A1 (it) * 2019-10-10 2021-04-10 Combi Arialdo S N C "Metodo per ottenere un assieme di una vite senza fine e assieme di vite senza fine perfezionata"

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011111533B4 (de) * 2011-08-31 2020-06-25 WS Wieländer + Schill Engineering GmbH & Co. KG Druckerzeuger für eine Zug- oder Pressvorrichtung sowie Zug- oder Pressvorrichtung
DE102011123087B3 (de) 2011-08-31 2022-09-08 WS Wieländer + Schill Engineering GmbH & Co. KG Druckerzeuger mit einem Griffstück und einer Zug- oder Pressvorrichtung sowie Werkzeugsystem

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB567355A (en) * 1943-09-14 1945-02-09 Wellman Seaver Rolling Mill Co Improvements in or relating to tube swaging machines
DE3513129A1 (de) * 1985-04-12 1986-10-23 Peter Dipl.-Ing. 6000 Frankfurt Schröck Radialpresse mit mehreren sternfoermig angeordneten druckmittelantrieben
FR2698026A1 (fr) * 1992-11-19 1994-05-20 Dubuis Jeu de deux matrices destinées à équiper une presse à rétreindre et/ou à sertir.
EP0628362B1 (fr) 1990-04-12 1998-06-17 Helmut Dipl.-Ing. Dischler Outil de pressage
US20010027676A1 (en) * 1997-10-15 2001-10-11 Egbert Frenken Hydraulic pressing device and method for operating the same
WO2002034427A1 (fr) * 2000-10-25 2002-05-02 Mastercool, Inc. Outil de sertissage portatif
WO2002054542A1 (fr) * 2001-01-05 2002-07-11 Gustav Klauke Gmbh Outil de pressage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1320653C (fr) * 1988-12-27 1993-07-27 Arthur J. Hyatt Outil d'emboutissage
DE4130008A1 (de) * 1991-09-10 1993-03-11 Hewing Gmbh Presswerkzeug zum aufpressen eines zylindrischen pressteils oder eines einen zylindrischen abschnitt aufweisenden pressteils auf ein rundprofil, insbesondere eine rohrleitung
DE19817882B4 (de) * 1998-04-22 2005-08-18 Uniflex-Hydraulik Gmbh Radialpresse

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB567355A (en) * 1943-09-14 1945-02-09 Wellman Seaver Rolling Mill Co Improvements in or relating to tube swaging machines
DE3513129A1 (de) * 1985-04-12 1986-10-23 Peter Dipl.-Ing. 6000 Frankfurt Schröck Radialpresse mit mehreren sternfoermig angeordneten druckmittelantrieben
EP0628362B1 (fr) 1990-04-12 1998-06-17 Helmut Dipl.-Ing. Dischler Outil de pressage
FR2698026A1 (fr) * 1992-11-19 1994-05-20 Dubuis Jeu de deux matrices destinées à équiper une presse à rétreindre et/ou à sertir.
US20010027676A1 (en) * 1997-10-15 2001-10-11 Egbert Frenken Hydraulic pressing device and method for operating the same
WO2002034427A1 (fr) * 2000-10-25 2002-05-02 Mastercool, Inc. Outil de sertissage portatif
WO2002054542A1 (fr) * 2001-01-05 2002-07-11 Gustav Klauke Gmbh Outil de pressage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2687300A3 (fr) * 2012-07-19 2016-08-24 DMC Power, Inc. Outil de sertissage de tête oscillante
IT201900018428A1 (it) * 2019-10-10 2021-04-10 Combi Arialdo S N C "Metodo per ottenere un assieme di una vite senza fine e assieme di vite senza fine perfezionata"

Also Published As

Publication number Publication date
DE102010000545A1 (de) 2011-08-25
EP2361701B1 (fr) 2014-03-05

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