EP1551574B2 - Dispositif d'extrusion laterale de pieces et procede permettant de faire fonctionner ledit dispositif - Google Patents

Dispositif d'extrusion laterale de pieces et procede permettant de faire fonctionner ledit dispositif Download PDF

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Publication number
EP1551574B2
EP1551574B2 EP03807787A EP03807787A EP1551574B2 EP 1551574 B2 EP1551574 B2 EP 1551574B2 EP 03807787 A EP03807787 A EP 03807787A EP 03807787 A EP03807787 A EP 03807787A EP 1551574 B2 EP1551574 B2 EP 1551574B2
Authority
EP
European Patent Office
Prior art keywords
plungers
die
pressure
blank
die halves
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
EP03807787A
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German (de)
English (en)
Other versions
EP1551574B1 (fr
EP1551574A1 (fr
Inventor
Hubert Brida
Thomas Keppler-Ott
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.)
ThyssenKrupp Presta AG
Original Assignee
ThyssenKrupp Presta AG
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Filing date
Publication date
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Application filed by ThyssenKrupp Presta AG filed Critical ThyssenKrupp Presta AG
Publication of EP1551574A1 publication Critical patent/EP1551574A1/fr
Publication of EP1551574B1 publication Critical patent/EP1551574B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/025—Closed die forging
    • 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

Definitions

  • the invention relates to a device for the transverse extrusion of workpieces according to the preamble of claim 1 (see ZB US-A-4,977,773 ).
  • the deformation of the workpieces takes place in two superimposed mold halves, wherein the workpiece is pressed between two punches in such a way that a part of the material deviates transversely to the pressing direction in cavities formed by the die halves.
  • the essential feature of this form of cross flow extrusion is that the die halves always lie on top of each other during the forming process and can not be separated from each other by the forming forces. Therefore, the die halves are held together by force applied devices, preferably by hydraulic or pneumatic piston, which must apply such a high force that the forming forces the die halves are not able to open.
  • the invention has for its object to make a device for Querf pastpressen of workpieces such that the blank is easily introduced into this device and provide means that hold the blank in the intended location in the tool.
  • the illustrated device is particularly suitable for the transverse extrusion of workpieces on horizontally operating forming machines, preferably multi-stage forming machines.
  • the forming process can be performed contrary to the embodiment in several tools in several forming steps.
  • each device half has a holding device 1, 2. These holding devices 1, 2 are connected to the press table and press die, not shown, or the die and punch side receiving device of a horizontal press.
  • the die halves 9, 10 are fixed, these die halves 9, 10 are biased with reinforcements 11, 12 against radial expansion.
  • the die halves 9, 10 are axially penetrated centrally by plungers 13, 14. These plungers 13, 14 are guided in the die halves 9, 10 and in a central bore through the annular piston 5, 6. The plunger 13, 14 are on the tool side via intermediate pieces 15, 16 of the pressure piston 17, 18 at.
  • pressure chambers 19, 20 are formed between the cylinder heads 3, 4 and the annular piston 5, 6, which can be acted upon with pressurized fluid or pressurized gas or air.
  • Corresponding pressure chambers 21, 22 are arranged above the pressure pistons 17, 18 in order to pressurize them.
  • FIG. 1 shows the tool apart. In this position, for example, can be brought via gripper, the blank 23 between the ram apart 13, 14 and held here (shown by arrows).
  • the plunger 13, 14 then drive, as in FIG. 2 represented, towards each other. This can, as well as in FIG. 2 shown by the ancestor of the press ram on the press table done.
  • this could for example be done via an ancestor of the upper and / or lower ring piston 6, 7 in the cylinder pot 3, 4: In the same way but also by an ancestor of the plunger 13, 14, then in must be in the home position in retracted position.
  • FIG. 4 shows the device after the forming of the blank 23 to the finished workpiece 24.
  • the annular piston 5, 6 retracted into the cylinder heads 3, 4.
  • the hydraulic fluid or the pneumatic medium are controlled or controlled discharged or compressed.
  • the force-time behavior of all device parts can be selectively controlled against each other.
  • the controlled controlled discharge of the hydraulic fluid or the pneumatic medium from the pressure chambers 21, 22 that in each phase of its transformation to the workpiece 24 the correct position of the blank 23 with respect to the collapse of the plunger 13, 14 in the die halves 9, 10 is ensured.
  • This measure can be supported by the controlled removal of the hydraulic fluid or the pneumatic fluid from the pressure chambers 19,20.
  • one or both of the plungers 13, 14 serve as an ejector. It is even possible that the finished workpiece between the plungers 13, 14 are held and then picked up by a gripping device and can be selectively fed for further processing.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Press Drives And Press Lines (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Extrusion Of Metal (AREA)

Claims (9)

  1. Dispositif pour l'extrusion latérale de pièces (24) à partir d'ébauches (23), présentant
    - un plateau de presse qui porte une première demi-matrice (10),
    - un poinçon de presse mobile perpendiculairement au plateau de presse, exerçant la force de formage nécessaire, auquel la deuxième demi-matrice (9) est fixée,
    - des dispositifs soumis à une force, commandés séparément, pour bloquer les demi-matrices (9, 10),
    un poinçon (13, 14) étant associé à chacune des deux demi-matrices (9, 10), les deux poinçons (13, 14) étant sollicités par des chambres de pression (21, 22), pouvant être séparément commandés et déplacés jusqu'au-delà du contour de formage de la demi-matrice (9, 10) ainsi que du plan de séparation des outils dans la direction de travail, les poinçons (13, 14), avant le rapprochement des demi-matrices (9, 10), pouvant être déplacés l'un vers l'autre de telle sorte que l'ébauche (23) soit maintenue entre les poinçons (13, 14), et les poinçons (13, 14) étant réglables en ce qui concerne leur comportement force/temps par réglage de l'évolution de la pression dans la chambre de pression (21, 22) associée, séparément pour chaque demi-matricer (9, 10).
  2. Dispositif selon la revendication 1, caractérisé en ce que les poinçons (13, 14) s'appuient, au moins pendant la dernière phase du formage, sur la partie de la demi-matrice (9, 10) qui les porte.
  3. Dispositif selon revendication 1 ou 2, caractérisé en ce que les dispositifs de blocage des demi-matrices (9, 10) sont réalisés sous la forme de pistons annulaires (5, 6) hydrauliques ou pneumatiques.
  4. Dispositif selon la revendication 3, caractérisé en ce que les chambres de pression (19, 20, 21, 22) auxquelles sont associés les pistons annulaires (5, 6) et les poinçons (13, 14), sont reliées à des dispositifs de commande de pression séparés qui permettent une évolution de la pression commandée ou réglée différemment par rapport aux autres, dans la chambre de pression associée.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les poinçons (13, 14) sont conduits dans les demi-matrices (9, 10) respectives.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que les demi-matrices (9, 10) présentent chacune un dispositif de maintien (1, 2) sur chacun desquels sont agencés, mobiles dans la direction de travail, un dispositif de blocage et un piston presseur (17, 18) pour les poinçons (13, 14).
  7. Dispositif selon la revendication 9, caractérisé en ce que le piston presseur (17, 18) associé au poinçon (13, 14) correspondant est guidé concentriquement dans le dispositif de blocage (5, 6).
  8. Procédé pour l'exploitation d'un dispositif selon l'une des revendications 1 à 7, dans lequel
    l'ébauche (23), lors de la mise en place dans le dispositif, est d'abord maintenue entre les poinçons, avant que les outils soient rapprochés par le rapprochement du poinçon de presse et du plateau de presse,
    le comportement force/temps des poinçons (13, 14) pendant le formage de la pièce, étant réglé séparément pour chaque demi-matrice, par réglage de l'évolution de la pression dans la chambre de pression (21, 22) associée.
  9. Procédé selon la revendication 8, caractérisé en ce que, les demi-matrices (9, 10) étant écartées, l'ébauche (23) est d'abord amenée, au moyen d'un organe de préhension, entre les poinçons (13, 14) éloignés l'un de l'autre et y est maintenue, en ce que les poinçons (13, 14) sont ensuite déplacés l'un vers l'autre jusqu'à ce qu'ils maintiennent l'ébauche (23), et en ce que les outils sont alors déplacés l'un vers l'autre en formant l'ébauche (23), par rapprochement du poinçon de presse et du plateau de presse.
EP03807787A 2002-10-08 2003-08-09 Dispositif d'extrusion laterale de pieces et procede permettant de faire fonctionner ledit dispositif Expired - Lifetime EP1551574B2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10246940A DE10246940C5 (de) 2002-10-08 2002-10-08 Vorrichtung zum Querfließpressen von Werkstücken und Verfahren zum Betreiben einer derartigen Vorrichtung
DE10246940 2002-10-08
PCT/EP2003/008865 WO2004033123A1 (fr) 2002-10-08 2003-08-09 Dispositif d'extrusion laterale de pieces et procede permettant de faire fonctionner ledit dispositif

Publications (3)

Publication Number Publication Date
EP1551574A1 EP1551574A1 (fr) 2005-07-13
EP1551574B1 EP1551574B1 (fr) 2007-07-25
EP1551574B2 true EP1551574B2 (fr) 2011-01-12

Family

ID=32038341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03807787A Expired - Lifetime EP1551574B2 (fr) 2002-10-08 2003-08-09 Dispositif d'extrusion laterale de pieces et procede permettant de faire fonctionner ledit dispositif

Country Status (6)

Country Link
EP (1) EP1551574B2 (fr)
AT (1) ATE367872T1 (fr)
AU (1) AU2003263206A1 (fr)
DE (2) DE10246940C5 (fr)
ES (1) ES2287571T5 (fr)
WO (1) WO2004033123A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103331399A (zh) * 2013-02-25 2013-10-02 袁正敏 双作用环缸式对压机
CN113290067A (zh) * 2021-04-23 2021-08-24 靖江市海源有色金属材料有限公司 一种接线柱型材的挤压装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2027692A1 (de) † 1970-06-05 1972-04-13 F.B. Hatebur Ag, Basel (Schweiz) Verfahren zum Formpressen von Teilen, denen Begrenzungsflächen von der Preßachse unterschiedliche Abstände aufweisen, sowie Einrichtung zur Durchführung dieses Verfahrens
US6332347B1 (en) † 1999-09-10 2001-12-25 Kabushiki Kaisha Sakamura Kikai Seisakusho Apparatus for full-enclosed die forging
DE10047467A1 (de) † 2000-09-21 2002-04-18 Schuler Pressen Gmbh & Co Vorrichtung und Verfahren zum Umformen, insbesondere mit hydraulischer Schließvorrichtung
DE10030792C2 (de) † 2000-06-29 2003-07-24 Hatebur Umformmaschinen Ag Rei Mehrstufenpresse, insbesondere Quertransportpresse, mit hydraulischer Schließvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0275433A (ja) * 1988-09-13 1990-03-15 Mitsubishi Heavy Ind Ltd 閉塞鍛造用復動ダイセット
JPH11314134A (ja) * 1998-05-06 1999-11-16 Komatsu Ltd 閉塞鍛造用金型装置
DE19922660B4 (de) * 1999-05-18 2005-03-17 Forschungsgesellschaft Umformtechnik Mbh Schließvorrichtung, vorzugsweise zum Querfließpressen
DE19922659B4 (de) * 1999-05-18 2005-02-10 Forschungsgesellschaft Umformtechnik Mbh Hydraulische Schließvorrichtung zum Querfließpressen von Werkstücken

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2027692A1 (de) † 1970-06-05 1972-04-13 F.B. Hatebur Ag, Basel (Schweiz) Verfahren zum Formpressen von Teilen, denen Begrenzungsflächen von der Preßachse unterschiedliche Abstände aufweisen, sowie Einrichtung zur Durchführung dieses Verfahrens
US6332347B1 (en) † 1999-09-10 2001-12-25 Kabushiki Kaisha Sakamura Kikai Seisakusho Apparatus for full-enclosed die forging
DE10030792C2 (de) † 2000-06-29 2003-07-24 Hatebur Umformmaschinen Ag Rei Mehrstufenpresse, insbesondere Quertransportpresse, mit hydraulischer Schließvorrichtung
DE10047467A1 (de) † 2000-09-21 2002-04-18 Schuler Pressen Gmbh & Co Vorrichtung und Verfahren zum Umformen, insbesondere mit hydraulischer Schließvorrichtung

Also Published As

Publication number Publication date
EP1551574B1 (fr) 2007-07-25
DE10246940B4 (de) 2006-11-02
AU2003263206A1 (en) 2004-05-04
EP1551574A1 (fr) 2005-07-13
WO2004033123A1 (fr) 2004-04-22
ATE367872T1 (de) 2007-08-15
DE50307782D1 (de) 2007-09-06
ES2287571T3 (es) 2007-12-16
DE10246940C5 (de) 2008-07-03
ES2287571T5 (es) 2011-05-20
DE10246940A1 (de) 2004-04-22

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