EP2691191B1 - Presse radiale - Google Patents

Presse radiale Download PDF

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Publication number
EP2691191B1
EP2691191B1 EP12706481.4A EP12706481A EP2691191B1 EP 2691191 B1 EP2691191 B1 EP 2691191B1 EP 12706481 A EP12706481 A EP 12706481A EP 2691191 B1 EP2691191 B1 EP 2691191B1
Authority
EP
European Patent Office
Prior art keywords
pressure plate
piston rods
radial
radial press
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.)
Active
Application number
EP12706481.4A
Other languages
German (de)
English (en)
Other versions
EP2691191A1 (fr
Inventor
Reiner Viehl
Vaclav Hejplik
Carsten Baumgartner
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.)
Uniflex Hydraulik GmbH
Original Assignee
Uniflex Hydraulik GmbH
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Filing date
Publication date
Application filed by Uniflex Hydraulik GmbH filed Critical Uniflex Hydraulik GmbH
Publication of EP2691191A1 publication Critical patent/EP2691191A1/fr
Application granted granted Critical
Publication of EP2691191B1 publication Critical patent/EP2691191B1/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
    • B21D39/048—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 using presses for radially crimping tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/06—Swaging presses; Upsetting presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn

Definitions

  • the present invention relates to a radial press having a housing and a plurality thereof concentrically arranged around a press axis around pressing cheeks which are slidably supported on associated, inclined to the press axis sliding surfaces and acts on the front side by means of a drive means along the press axis sliding pressure plate, wherein the drive means comprises a plurality of hydraulic cylinder-piston units with fixed to the housing cylinders and on the pressure plate engaging piston rods.
  • a radial press is eg in the US-A-3461710 disclosed.
  • Radial presses of the type described above, as belonging to the prior art, are used for the radial deformation of workpieces, in particular for pressing fittings on hose sections for the production of ready-to-install hoses for hydraulic applications and the like.
  • the aforementioned object is inventively achieved in that in a radial press of the type specified, the piston rods end spherical end pieces, which are supported in running on the pressure plate spherical abutments.
  • the piston rods are subjected exclusively to train even with a deforming pressure plate. Accordingly, the piston rods could run to a significant extent weaker be as in known generic radial presses, in which the piston rods are rigidly connected end to end with the pressure plate.
  • piston rods of the drive means dimensioning such that they - taking into account the security offered - only the forces to be exerted on the pressure plate, oriented in the direction of the press axis forces are able to perform.
  • the piston rods can be made lighter compared with the prior art.
  • the printing plate because for this can be taken in averting the present invention, a certain deformation in purchasing, since this is possible without the introduction of bending moments in the piston rods.
  • the radial press can be made significantly lighter overall, as is the case for the prior art.
  • the range of application of the generic radial presses is significantly expanded, namely in the field of mobile applications.
  • the weight savings attaches to the moving parts (piston rods and pressure plate), which has an advantageous effect with regard to the achievable pressing dynamics, without adversely affecting the maximum pressing force.
  • the present invention benefit namely in so far as can be realized particularly compact radial presses.
  • the possible weaker dimensioning of the printing plate which is possible in application of the invention, has an advantageous effect; and in view of the radial dimensions of the radial press this benefits the weaker dimensions of the piston rods, due to which the axes of the hydraulic cylinder-piston units of the drive means may have a smaller distance from the press axis, as is true for the prior art.
  • the head pieces are designed as screwed onto the piston rods nuts.
  • Such nuts allow in a particularly simple manner a fine adjustment and fine tuning of the piston rods of the various hydraulic cylinder-piston units of the drive device so that they carry as evenly as possible.
  • Another preferred development of the invention is characterized in that the pressure plate in each case adjacent to the spherical abutments breakthroughs for the associated piston rods, wherein between consist of the piston rods and the openings annular clearances.
  • the annular free spaces allow in a special way the above-mentioned game of the piston rods relative to the pressure plate, which relates to the angular orientation of the axis of the respective piston rod relative to the pressure plate. It is particularly advantageous if the respective annular clearance at least partially also goes back to a constriction of the piston rod adjacent to the respective head piece.
  • the piston rods are each surrounded in the region of the openings of the pressure plate by a radially resilient, applied to the pressure plate and the respective piston rod sleeve.
  • the relevant sleeve is supported in the axial direction on the piston rod, in particular on a heel. In this way, it is possible to clamp the pressure plate on each of the hydraulic cylinder-piston units between the head piece and the sleeve to fix the respective piston rod in a unique position on the pressure plate. Due to the radial compliance of the sleeve, this does not hinder the above-described angular movement of the piston rod relative to the pressure plate.
  • the sleeve can also serve to seal the region in which the head pieces of the piston rods and the pressure plate abut against each other at corresponding spherical surfaces, and thus to prevent soiling from getting there.
  • the head pieces are sealed against the pressure plate with elastically deformable sealing means to prevent also from that side from penetration of dirt in the region of the contact surfaces.
  • connection of the piston rods to the pressure plate can be applied accordingly to the connection of the tie rods to the coupled with them press yoke of a yoke press.
  • the illustrated in the drawing radial press comprises a substantially annular housing 1, which defines a substantially conical to the press axis 2 receiving space 3 for eight pressing jaws 4.
  • the concentrically arranged about the press axis 2 around pressing jaws 4 are based on about the press axis 2 inclined support surfaces 5 such sliding on corresponding sliding surfaces 6 of the housing 1 from that with an axial movement (double arrow A) of the pressing jaws forcibly a radial movement (double arrow B) is coupled.
  • the drive device 8 comprises four hydraulic cylinder-piston units 9 arranged uniformly around the press axis 2. Their cylinders 10 are fixed to the housing 1. The piston rods 11 of the cylinder-piston units 9 pass through in the region of corresponding openings 12, the housing 1 and engage the pressure plate 7 at.
  • the piston rods 11 of the cylinder-piston units 9 have end faces, ie, spherical end pieces 13 on their end plates assigned to the pressure plate 7. These are designed as screwed onto the piston rods 11 nuts 14 with spherical, designed in the form of a ring portion 15 of a spherical cap faces 16.
  • the nuts 14 are based on the End faces 16 on corresponding, spherically shaped abutments 17, which are executed on the pressure plate 7, on the pressure plate 7 from.
  • the pressure plate 7 Adjacent to the abutments 17, the pressure plate 7 in each case has an opening 18 for the piston rod 11 of the respective associated cylinder-piston unit 9. In this case, between the piston rods 11 and the apertures 18 in the sense annular clearances 19, that there the piston rods 11 are not present on the pressure plate 7. In the region in the region of the apertures 18, the piston rods 11 are each surrounded by a radially resilient sleeve 20 resting against the pressure plate 7 and the respective piston rod 11.
  • the sleeve 20 seals the face surface 16 of the nut 17 and the mating abutment 18 cooperating with surface mating against the ingress of dirt, without the said deformation, i. to hinder the change in the angular position of the piston rod 11 relative to the pressure plate 7.
  • the sleeves 20 have a function in connection with the axial fixing of the piston rods 11 relative to the pressure plate 7.
  • the piston rods 11 adjacent to the head piece 13 has a shoulder 23 with a head 13 towards reducing diameter, each sleeve 20 is supported axially on the shoulder 23.
  • the sleeves 20 in turn have a shoulder 24, on which the associated end face 21 of the pressure plate 7 is supported. In this way, the pressure plate 7 is clamped between the nuts 14 and the sleeves 20.
  • the nuts 14 receiving recesses 25 of the pressure plate 7 are dimensioned so that the nuts 14 game 26 is to hinder the above-mentioned above change the angular position of the piston rod 11 relative to the pressure plate 7 not.
  • the game in question 26 and the corresponding space is filled with a resilient sealing material to prevent from this side penetration of dirt into the end face 16 of the nut 14 and the cooperating with this abutment 18 comprehensive surface pairing.

Claims (7)

  1. Presse radiale comprenant un logement (1) et une pluralité de mâchoires de serrage (4) disposées de façon concentrique à l'intérieur autour d'un axe de la presse (2), qui s'appuient de façon coulissante sur des surfaces de glissement (6) correspondantes disposées inclinées par rapport à l'axe de la presse et sur l'avant desquelles agit une plaque de pression (7) pouvant être déplacée le long de l'axe de la presse au moyen d'un dispositif d'entraînement (8), sachant que le dispositif d'entraînement comprend une pluralité d'unités piston-cylindre (9) hydrauliques avec des cylindres (10) fixés sur le logement et des tiges de piston (11) se mettant en prise sur la plaque de pression,
    caractérisée en ce
    que les tiges de piston (11) présentent des pièces de tête (13) sphériques à leur extrémité, qui s'appuient dans des contre-appuis (17) sphériques conçus sur la plaque de pression (7).
  2. Presse radiale selon la revendication 1, caractérisée en ce que les pièces de tête (13) sont conçues en tant qu'écrous (14) vissés sur les tiges de piston (11).
  3. Presse radiale selon la revendication 1 ou 2, caractérisée en ce que la plaque de pression (7) présente des percées (18) pour les tiges de piston (11) correspondantes, voisines respectivement des contre-appuis (17), sachant que des espaces libres (19) annulaires sont présents entre les tiges de piston et les percées.
  4. Presse radiale selon la revendication 3, caractérisée en ce que les tiges de piston (11), au niveau des percées (18), sont entourées respectivement par un manchon (29) radialement élastique, reposant sur la plaque de pression (7) et la tige de piston (11) correspondante.
  5. Presse radiale selon la revendication 4, caractérisée en ce que les tiges de piston (11), dans le voisinage de la pièce de tête (13), présentent un épaulement (23) avec un diamètre se réduisant en direction de la pièce de tête, sachant que le manchon (20) respectif s'appuie axialement sur l'épaulement.
  6. Presse radiale selon la revendication 4 ou 5, caractérisée en ce que les tiges de piston (11) présentent chacune un vissage en-dessous du manchon (20).
  7. Presse radiale selon l'une des revendications 4 à 6, caractérisée en ce que le manchon (20) présente un épaulement (24) sur lequel repose une face avant (21) de la plaque de pression.
EP12706481.4A 2011-03-31 2012-02-28 Presse radiale Active EP2691191B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011015654A DE102011015654A1 (de) 2011-03-31 2011-03-31 Radialpresse
PCT/EP2012/000846 WO2012130360A1 (fr) 2011-03-31 2012-02-28 Presse radiale

Publications (2)

Publication Number Publication Date
EP2691191A1 EP2691191A1 (fr) 2014-02-05
EP2691191B1 true EP2691191B1 (fr) 2015-04-15

Family

ID=45774146

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12706481.4A Active EP2691191B1 (fr) 2011-03-31 2012-02-28 Presse radiale

Country Status (3)

Country Link
EP (1) EP2691191B1 (fr)
DE (1) DE102011015654A1 (fr)
WO (1) WO2012130360A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015002556B3 (de) * 2015-03-02 2016-05-12 Uniflex-Hydraulik Gmbh Radialpresse
DE102018115750B3 (de) 2018-06-29 2019-07-11 Uniflex-Hydraulik Gmbh Radialpresse sowie Verfahren zum Fügen zweier Bauteile mittels Radialpressung
DE102018115744A1 (de) 2018-06-29 2020-01-02 Uniflex-Hydraulik Gmbh Radialpresse sowie Verfahren zum Fügen zweier Bauteile mittels Radialpressung
AU2020254908B2 (en) 2019-03-29 2024-03-21 Uniflex-Hydraulik Gmbh Method for producing a plurality of composite structures
DE102020121143B4 (de) * 2020-08-11 2022-03-10 Uniflex - Hydraulik GmbH Radialpresse
DE102020125890B3 (de) 2020-10-02 2022-03-10 Uniflex - Hydraulik GmbH Radialpresse
EP4144456A1 (fr) 2021-09-02 2023-03-08 Uniflex-Hydraulik GmbH Procédé de fabrication d'une conduite hydraulique à haute pression
DE202022102074U1 (de) 2022-04-19 2022-04-27 Uniflex - Hydraulik GmbH Radialpresse
DE102022109427B4 (de) 2022-04-19 2024-04-25 Uniflex - Hydraulik GmbH Radialpresse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461710A (en) * 1967-12-28 1969-08-19 Grotnes Machine Works Inc Methods and apparatus for shrink forming metal articles
FR2341093A1 (fr) * 1976-02-13 1977-09-09 Anoflex Flexibles Machine a sertir des embouts sur des tuyauteries souples
DE4135465A1 (de) 1991-10-28 1993-04-29 Schroeck Peter Dipl Ing Fh Radialpresse mit zwei radial gegeneinander beweglichen pressenjochen
DE102005034260B3 (de) 2005-07-22 2006-07-27 Schröck-Horn, Ursula Radialpresse zum Verpressen von rotationssymmetrischen Hohlkörpern

Also Published As

Publication number Publication date
WO2012130360A1 (fr) 2012-10-04
DE102011015654A1 (de) 2012-10-04
EP2691191A1 (fr) 2014-02-05

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