EP3339009B1 - Système de presse radiale et dispositif de changement rapide à utiliser sur une presse radiale - Google Patents

Système de presse radiale et dispositif de changement rapide à utiliser sur une presse radiale Download PDF

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Publication number
EP3339009B1
EP3339009B1 EP16206658.3A EP16206658A EP3339009B1 EP 3339009 B1 EP3339009 B1 EP 3339009B1 EP 16206658 A EP16206658 A EP 16206658A EP 3339009 B1 EP3339009 B1 EP 3339009B1
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EP
European Patent Office
Prior art keywords
radial press
quick
press system
radial
centering elements
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
EP16206658.3A
Other languages
German (de)
English (en)
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EP3339009A1 (fr
Inventor
Carsten Baumgartner
Martin David
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
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Uniflex Hydraulik 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.)
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Publication date
Application filed by Uniflex Hydraulik GmbH filed Critical Uniflex Hydraulik GmbH
Priority to EP16206658.3A priority Critical patent/EP3339009B1/fr
Publication of EP3339009A1 publication Critical patent/EP3339009A1/fr
Application granted granted Critical
Publication of EP3339009B1 publication Critical patent/EP3339009B1/fr
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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/085—Accessories for handling work or tools handling of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J7/00—Hammers; Forging machines with hammers or die jaws acting by impact
    • B21J7/02—Special design or construction
    • B21J7/14—Forging machines working with several hammers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/007—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a plurality of pressing members working in different directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/028—Loading or unloading of dies, platens or press rams

Definitions

  • radial presses can typically be converted by equipping them with differently dimensioned pressing jaws so that pressings with different diameters can be carried out with them.
  • the (exchangeable) press jaws are fixed radially on the inside to the base jaws, for example via pins, pegs or bolts protruding radially outward from the press jaws, which engage in corresponding receptacles in the base jaws and are locked there.
  • the press jaw set - typically comprising eight press jaws - as a whole, ie the one in insert a complete press jaw set stored in a corresponding magazine into the radial press or remove it from it and store it in the magazine.
  • a quick-change tool with a handle and a press jaw holder that holds the press jaws - evenly arranged concentrically around the tool axis - is used for the joint handling of all press jaws of a press jaw set.
  • the present invention has set itself the task of providing a quick-change device of the generic type which is improved compared to the prior art, in particular with regard to handling, and a radial press system of the type set forth above which is further improved compared to the prior art, in particular with regard to handling.
  • the generic quick-change device has three centering elements arranged at each end on an associated arm protruding from a central body, two arms forming load arms projecting from the central body close to the press jaw holder and the The third arm forms a support arm projecting away from the press jaw holder from the central body and the angle between the centering elements arranged on the two load arms, relative to the tool axis, is less than each of the two angles relating to the tool axis between the centering element arranged on the support arm and the one on the centering elements arranged on both load arms.
  • the radial press system according to the invention is characterized by the design of the quick-change device according to claim 1.
  • the radial press system is characterized by a specific design of those devices by means of which the quick-change device is centered relative to the radial press.
  • the number of centering elements is limited to three.
  • Each of the three centering elements is arranged - preferably at the end - on its own separate arm, the three arms radiating from a central body Quick-change device protrude.
  • the individual arms are assigned individual functions through specific structural features. Two of the arms protrude closer to the press jaw holder from the central body than the third arm.
  • the function-specific design of the devices used for centering the quick-change device according to the invention enables considerable advantages in terms of handling technology to be achieved compared with the known radial press system.
  • it allows a structured process in such a way that the centering elements arranged on the two load arms are initially attached to or placed on the corresponding counterparts (the radial press), before the third , centering element arranged on the support arm - by tilting the quick-change device - is brought into contact with the corresponding counterpart.
  • the two centering elements - assigned to the load arms - can easily be kept in view due to the comparatively small distance between them.
  • the mass of a quick-change device with a press jaw set received on it can be up to 4kg or even more in radial presses of typical size
  • Even the process possible with the inventive design of the radial press is a great relief compared to the procedure required according to the prior art.
  • the reduction of the centering support of the quick-change device on the radial press to only three arms provides a good overview.
  • the clearly recognizable asymmetry of the quick-change device - due to the different angles between the three centering elements as well as the different axial distance of the support arm and the load arms from the press jaw holder - enables error-reduced operation, as the correct angle position of the quick-change device is immediately and intuitively detected.
  • the support arm can be made longer in the radial direction than the two load arms. It is comparably advantageous if the support arm and / or the load arms have a colored marking in such a way that the support arm and load arms can be distinguished from one another in terms of color.
  • Another preferred option for further minimizing the risk of incorrect operation through intuitively correct handling of the quick-change device is to design the two load arms and the support arm with different cross-sectional shapes (e.g.
  • load arms with a hexagonal and support arm with a triangular cross-section whereby completely It is particularly favorable if the counterparts arranged on the radial press are designed by corresponding geometries in such a way that either only the support arm or one of the load arms can be attached appropriately.
  • the centering elements assigned to the load arms have a surface in the form of a spherical cap. This is because this favors the tilting of the quick-change device (in the second stage) when the centering elements of the load arms are already in contact with the corresponding counterparts of the radial press. This is all the more true when the two counterparts of the radial press intended to interact with the centering elements assigned to the load arms have pan-shaped receptacles.
  • the angle, related to the tool axis, between the centering elements assigned to the two load arms is between 75 ° and 105 °. This allows the advantages set out above to be optimized without any disadvantages arising in other respects, for example as a result of an excessively small distance between the two centering elements assigned to the load arms.
  • Yet another preferred development of the invention is characterized in that the load arms have a thicker cross section than the support arm. This, too, can further reduce the risk of incorrect operation, in particular if the counterparts (arranged on the radial press) have receptacles adapted to the cross-sectional dimensions of the arms. And because the support arm, in other words, has a thinner cross section than the load arms, it only minimally obstructs the view of the area of the radial press that is decisive when the press jaws are inserted. against the same background, it turns out to be beneficial if the three arms are angled in the shape of a hook.
  • means for position detection are provided in the area of at least one pair of mutually corresponding centering elements and counterparts.
  • this (possibly non-contact) position detection means it can be detected whether the quick-change device is correctly positioned on the radial press.
  • the radial press has a signaling device which communicates with the means for position detection and which visually and / or acoustically signals correct and / or possible incorrect positioning to the operator.
  • the drive unit of the radial press can also be blocked until the means for position detection detect a correct position of the quick-change device in the radial press. This is another effective measure to prevent possible damage to the radial press, the press jaws and / or the quick-change device when converting the radial press.
  • the quick-change device has at least one integrated light source.
  • the at least one light source for example by generating light beams aligned with the centering elements
  • an optimal light source can be achieved Alignment of the quick-change device are already supported during the approach to the radial press.
  • the quick-change device advantageously has a transparent protective disk, which is arranged between the press jaw holder and the plane defined by the three centering elements, which is particularly preferably perpendicular to the tool axis.
  • a transparent protective disk which is particularly preferably located near the end faces of the base jaws when the press jaws are changed, effectively prevents inadvertent reaching into the press tool.
  • a slight coloring of the protective pane can prove to be particularly favorable, namely to support a visually immediately recognizable assignment of a specific quick-change device to a specific radial press. The latter applies in particular if the radial press also has a corresponding colored marking.
  • the press jaw holder or an optionally provided protective disk has a marking assigned to one of the press jaw positions.
  • a specific arrangement of at least one defined pressing jaw on the radial press is important, for example by attaching a pressing jaw equipped with marking types to the lowest base jaw (6 o'clock position), the manual initial placement of the Press jaw set on the quick-change device in the correct position.
  • the central body of the quick-change device can be changed in position relative to the press jaw holder.
  • the central body (with the three arms attached to it) can be displaced along the tool axis and can be fixed in various defined positions (e.g. by means of a detent).
  • This makes it possible to change the relative axial position of the centering elements and the press jaw holder to one another and in this way to adapt the axial position of the press jaws in relation to the centering elements to different requirements.
  • One and the same quick-change tool is suitable - through suitable adjustment - for handling press jaws of different lengths.
  • the three arms each have several centering elements and can be positioned in several different positions on the central body in such a way that three specific centering elements are in a defined position enabling interaction with the associated counterparts of the radial press.
  • the arms which have two or more centering elements, can be rotatably positioned on the central body.
  • the handle of the quick-change device particularly preferably has a holder for an interchangeable key, as is used in certain radial presses for attaching and / or removing intermediate jaws from the base jaws is required.
  • the interchangeable interchangeable interchangeable jaw key - required for unlocking the intermediate jaws fixing the intermediate jaws on the base jaws - is always at hand when changing over the radial press.
  • the three centering elements can / can be arranged in a plane that is not perpendicular to the tool axis, in particular with the arms inclined in such a way that they do not protrude radially from the central body, but rather are oriented obliquely to the tool axis
  • Sensors can be integrated into the quick-change device, which communicate via an interface with a control of the radial press and read out a coding of the press jaws (e.g.
  • Means integrated on the quick-change device can be provided which automatically release the press jaw lock, and / or A spirit level and / or other device (e.g. pendulum plumb bob) for checking the spatial position of the quick-change device can be integrated into the quick-change device.
  • the quick-change device 1 illustrated in the drawing is part of a radial press system which (cf. US 6257042 B1 ) furthermore a radial press R ( Fig. 5 ) and a press jaw magazine
  • the radial press R comprises a housing, a plurality of base jaws arranged around a press axis, movable relative to the housing radially to the press axis, having press jaw receptacles and a drive unit for the synchronized movement of the base jaws in the direction of the press axis or away from it and in the press jaw magazine - each in sets - interchangeable press jaws are stored, which have suitable connecting means for attaching them to the base jaws of the radial press.
  • the quick-change device 1 allows, as in principle already from the US 6257042 B1 as well as the further prior art set out in the introduction is known, the common press jaw change.
  • it comprises a handle 2 and a press jaw holder 3 in a manner known per se.
  • the press jaw holder 3 is designed concentrically to a tool axis X in the sense that it has eight retaining pins 5 which are arranged concentrically and evenly distributed around the tool axis X and project in the axial direction from a carrier disk 4.
  • eight magnets 7 are also embedded - each adjacent to a retaining pin 5 - by means of which the press jaws of a press jaw set received by the quick-change device 1 are held in position.
  • the quick-change device 1 has an approximately cylindrical central body 8 between the press jaw holder 3 and the handle 2.
  • Three arms 9 protrude from this in the form of rays. These each have a round cross section and are each angled in the shape of a hook with an essentially radial direction extending inner section 10, a knee 11 and a substantially axially extending outer section 12.
  • the free ends of the outer sections 12 are each designed as a dome or in the form of a spherical cap 13.
  • They form centering elements 14 which are intended and suitable for interaction with counterparts G provided on the radial press R.
  • the counterparts G are designed to correspond to the centering elements in terms of their shape or geometry and dimensions.
  • the first two arms mentioned, which form two load arms 15, enclose an angle (namely 90 °) with one another, which is less than the angle (namely 135 °) that the third arm, forming a support arm 16, forms with each of the two load arms 15 includes.
  • the axially extending outer sections 12 of the two load arms 15 are shorter than the outer section 12 of the support arm 16 by an amount corresponding to the axial offset of the inner sections 10 of the arms 9.
  • the said offset is compensated at the ends of the arms 9 in such a way that the three centering elements 14 lie in a plane perpendicular to the tool axis X.
  • the quick-change device Arranged between this plane and the press jaw holder 3, the quick-change device has a transparent protective disk 17.
  • Those two counterparts G of the radial press R which are assigned to the two centering elements 14 arranged on the load arms 15, form pan-shaped receptacles 18 into which the load arms 15 can be hung at the ends even when the quick-change device 1 is tilted.
  • the handle 2 of the quick change device 1 has a holder 19 for an interchangeable jaw key.
  • An intermediate jaw interchangeable key received in this holder 19 is secured in position, for example by means of a magnet or a clamping mechanism.

Claims (20)

  1. Dispositif de changement rapide (1) à utiliser pour le changement de mâchoires de pressage sur une presse radiale (R) comprenant une poignée (2) et un support de mâchoires de pressage (3) concentrique par rapport à un axe d'outil (X), sachant que le dispositif de changement rapide (1) comporte des éléments de centrage (14) correspondants appropriés pour agir conjointement avec des contre-pièces (G) prévues sur la presse radiale (R),
    caractérisé en ce que
    le système de changement rapide (1) comporte trois éléments de centrage (14) disposés en extrémité respectivement sur un bras (9) attribué s'écartant d'un corps central (8), sachant que deux bras (9) forment des bras de charge (15) près du support de mâchoires de pressage (3) s'écartant du corps central (8) et le troisième bras (9) forme un bras de support (16) éloigné du support de mâchoires de pressage (3) s'écartant du corps central (8) et l'angle se référant à l'axe d'outil (X) entre les éléments de centrage (14) disposés sur les deux bras de charge (15) est plus faible que chacun des deux angles se référant à l'axe d'outil (X) entre l'élément de centrage (14) disposé sur le bras de support (16) et les éléments de centrage (14) disposés sur les deux bras de charge (15).
  2. Système de presse radiale comprenant
    - une presse radiale (R) avec un bâti, une pluralité de mâchoires de base disposées autour d'un axe de pressage, mobiles par rapport au bâti radialement eu égard à l'axe de pressage, comportant des logements de mâchoires de pressage et une unité d'entraînement pour le déplacement synchronisé des mâchoires de base en direction de l'axe de pressage ou s'éloignant de celui-ci,
    - un magasin de mâchoires de pressage avec des mâchoires de pressage de rechange en réserve par jeux, comportant des moyens de liaison adaptés pour la mise en place de celles-ci sur les mâchoires de base de la presse radiale et
    - un dispositif de changement rapide (1) selon la revendication 1.
  3. Système de presse radiale selon la revendication 2, caractérisé en ce que l'angle se référant à l'axe d'outil (X) entre les éléments de centrage (14) attribués aux deux bras de charge (15) se situe entre 75° et 105°.
  4. Système de presse radiale selon la revendication 2 ou la revendication 3, caractérisé en ce que les bras (9) comportent une section ronde.
  5. Système de presse radiale selon l'une quelconque des revendications 2 à 4, caractérisé en ce que les bras (9) sont coudés en forme de crochet.
  6. Système de presse radiale selon l'une quelconque des revendications 2 à 5, caractérisé en ce que les bras de charge (15) comportent une autre section, de préférence plus épaisse, que le bras de support (16).
  7. Système de presse radiale selon l'une quelconque des revendications 2 à 6, caractérisé en ce qu'au moins les éléments de centrage (14) attribués aux bras de charge (15) comportent une surface en forme d'une calotte sphérique (13).
  8. Système de presse radiale selon la revendication 7, caractérisé en ce que les contre-pièces (G) destinées à agir conjointement avec les éléments de centrage (14) attribués aux bras de charge (15) comportent des logements en forme de coupelle (18).
  9. Système de presse radiale selon l'une quelconque des revendications 2 à 8, caractérisé en ce que le bras de support (16) et/ou les bras de charge (15) comportent un marquage de couleur de telle manière que le bras de support (16) et les bras de charge (15) peuvent être différenciés les uns des autres par la couleur.
  10. Système de presse radiale selon l'une quelconque des revendications 2 à 9, caractérisé en ce que le dispositif de changement rapide (1) comporte une source lumineuse intégrée.
  11. Système de presse radiale selon l'une quelconque des revendications 2 à 10, caractérisé en ce que des moyens d'identification de position sont prévus dans la zone d'au moins une paire d'éléments de centrage (14) et de contre-pièces (G) correspondant les uns avec les autres.
  12. Système de presse radiale selon la revendication 11, caractérisé en ce que la presse radiale (R) comporte un système de signalisation communiquant avec les moyens d'identification de position.
  13. Système de presse radiale selon l'une quelconque des revendications 2 à 12, caractérisé en ce que les éléments de centrage (14) sont disposés dans un plan axial se situant perpendiculairement à l'axe d'outil (X) .
  14. Système de presse radiale selon la revendication 13, caractérisé en ce que le dispositif de changement rapide (1) comporte un plateau de protection (17) transparent disposé entre le support de mâchoires de pressage (3) et le plan défini par les éléments de centrage (14).
  15. Système de presse radiale selon l'une quelconque des revendications 2 à 14, caractérisé en ce que le support de mâchoires de pressage (3), ou un plateau de protection (17) prévu le cas échéant, comporte un marquage attribué aux positions des mâchoires de pressage.
  16. Système de presse radiale selon l'une quelconque des revendications 2 à 15, caractérisé en ce que le corps central (8) peut être modifié en position par rapport au support de mâchoires de pressage (3).
  17. Système de presse radiale selon l'une quelconque des revendications 2 à 16, caractérisé en ce que les bras (9) comportent respectivement plusieurs éléments de centrage (14) et peuvent être positionnés dans plusieurs positions différentes sur le corps central (8) .
  18. Système de presse radiale selon la revendication 17, caractérisé en ce que les bras (9) peuvent être positionnés pouvant tourner sur le corps central (8).
  19. Système de presse radiale selon l'une quelconque des revendications 2 à 18, caractérisé en ce que la poignée du dispositif de changement rapide comporte une fixation pour une clé de changement de mâchoires intermédiaires.
  20. Système de presse radiale selon l'une quelconque des revendications 2 à 19, caractérisé en ce que le bras de support (16) comporte une autre forme de section que les deux bras de charge (15).
EP16206658.3A 2016-12-23 2016-12-23 Système de presse radiale et dispositif de changement rapide à utiliser sur une presse radiale Active EP3339009B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16206658.3A EP3339009B1 (fr) 2016-12-23 2016-12-23 Système de presse radiale et dispositif de changement rapide à utiliser sur une presse radiale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16206658.3A EP3339009B1 (fr) 2016-12-23 2016-12-23 Système de presse radiale et dispositif de changement rapide à utiliser sur une presse radiale

Publications (2)

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EP3339009A1 EP3339009A1 (fr) 2018-06-27
EP3339009B1 true EP3339009B1 (fr) 2021-03-31

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000005092A1 (it) * 2020-03-10 2021-09-10 Op Srl Assieme pressa radiale

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6257042B1 (en) 1999-11-05 2001-07-10 Lillbacka Oy Open throat crimping machine
DE20109212U1 (de) 2001-04-23 2002-09-12 Uniflex Hydraulik Gmbh Vorrichtung zum Einsetzen bzw. Entnehmen eines Wechselbackensatzes in das bzw. aus dem Werkzeug einer Radialpresse
ITBS20030034A1 (it) 2003-04-04 2004-10-05 Op Srl Pinza portautensili perfezionata per presse radiali.
US7797979B2 (en) * 2006-02-14 2010-09-21 Eaton Corporation Crimping apparatus including a tool for supporting a plurality of crimping members
PL2420332T3 (pl) * 2010-08-20 2013-05-31 Op Srl Chwytak do trzymania narzędzi prasy promieniowej
DE202015002566U1 (de) 2015-04-10 2015-05-15 Uniflex Hydraulik Gmbh System für die relativ zu einer Pressachse zentrische Radialverformung eines Werkstücks

Non-Patent Citations (1)

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Title
None *

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