EP1697066B1 - Procede de realisation d'un rebord sur un flan circulaire en tôle - Google Patents

Procede de realisation d'un rebord sur un flan circulaire en tôle Download PDF

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Publication number
EP1697066B1
EP1697066B1 EP04803144A EP04803144A EP1697066B1 EP 1697066 B1 EP1697066 B1 EP 1697066B1 EP 04803144 A EP04803144 A EP 04803144A EP 04803144 A EP04803144 A EP 04803144A EP 1697066 B1 EP1697066 B1 EP 1697066B1
Authority
EP
European Patent Office
Prior art keywords
flange
metal blank
pressure roller
blank
circular sheet
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.)
Not-in-force
Application number
EP04803144A
Other languages
German (de)
English (en)
Other versions
EP1697066A1 (fr
Inventor
Udo Friese
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.)
WF Maschinenbau und Blechformtecknik GmbH and Co KG
Original Assignee
WF Maschinenbau und Blechformtecknik GmbH and Co KG
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
Priority claimed from DE10358844A external-priority patent/DE10358844B4/de
Application filed by WF Maschinenbau und Blechformtecknik GmbH and Co KG filed Critical WF Maschinenbau und Blechformtecknik GmbH and Co KG
Publication of EP1697066A1 publication Critical patent/EP1697066A1/fr
Application granted granted Critical
Publication of EP1697066B1 publication Critical patent/EP1697066B1/fr
Not-in-force 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • B21D22/18—Spinning using tools guided to produce the required profile
    • 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
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like

Definitions

  • the invention relates to a method for producing a flange on a sheet metal blank by means of at least one or more spinning roller (s) rotating relative to the sheet metal blank.
  • the metal blank is not held by means of chucks but by means of an abutment chuck, which is ring-shaped and has a slightly larger inner diameter than the metal blank in its initial state.
  • an abutment chuck which is ring-shaped and has a slightly larger inner diameter than the metal blank in its initial state.
  • the spinning roller is moved axially inwards, so again in the manner of DE 4400257C1 around a central spike or the like forms a hub.
  • flanges are to be formed on the metal blanks whose radial ring width is greater than their axial height.
  • the flange should also be slightly thicker than the starting material.
  • the axial extent of the flange is less than its radial extent.
  • the flange should preferably be axially thicker than the starting workpiece.
  • the radial extent of the flange is more than two, in particular more than three times as large as its axial extent, which is particularly advantageous in the realization before starter rings with relatively flat flanges of thin blanks as the starting workpiece.
  • the formation of the conical structure can in particular be effected in the simplest way that the angle of attack ( ⁇ ) of the pressure roller relative to the axial surface of the metal blank is greater than 90 °. Particularly good results are achieved when the angle of attack ( ⁇ ) of the pressure roller relative to the axial surface of the metal blank is greater than 110 ° and less than 170 °, in particular greater than 115 ° and less than 150 °.
  • the metal blank is held on its outer periphery by an abutment chuck.
  • it is suitable for very thin discs (for starter wreaths etc.), when the metal blank is held down on its side facing the spinning roller at least in sections in the outer region of a ring.
  • very well "thin" starter rings for engines can be made, from a few mm (less than five mm) thick disc-shaped Ronde a ring is made with an inner flange.
  • the blank is thereby reduced to eg only 3mm thickness in a central radial region.
  • the resulting inner projection to the flange is formed (in particular on a press) and the outer edge shaped in a conventional manner in the manner of a starter ring.
  • the flange is formed on the side facing away from the spinning roller side of the metal blank.
  • the flange is formed on its side facing the spinning roller of the metal blank when the tool has a corresponding recess in the area provided for the flange. It is also conceivable that the flange extends to both axial sides of the metal blank.
  • a further advantageous embodiment is characterized in that the flange is pressed into a tool with a contour, in particular a toothing, so that the flange is provided on its side facing the tool with a corresponding contour, in particular a toothing.
  • the invention also provides a transmission part with a flange, in particular around a central bore, wherein the flange of the transmission part is manufactured by a method according to one of claims 1 to 21 and integrally connected to the rest of the transmission part.
  • This transmission part is preferably formed as a starter ring, which is made from a blank having less than 7, in particular less than 5, preferably less than 4mm, wherein the starter ring is in sections thinner than the starting width of the blank and wherein the starter ring integrally molded in the pressing flange to an inner through-hole that is more than two, in particular more than four times as wide (radial extent) as high (axial extent).
  • the flange was made from a separate ring which was mounted on a round blank. This can be omitted with the invention surprisingly.
  • a sprocket ring is attached or integrally formed on the outer circumference of the starter ring, the appearance of the starter ring is similar in principle to that of Fig. 4. However, the proportions are different, because the flange is only slightly higher than the Huaweironde (Fig. 5).
  • Fig. 1 shows a disc-shaped, circular metal blank 1, which is penetrated by a central bore 2 and which is inserted in the manner of Fig. 5 in a tool that rotates during machining about the axis S.
  • the metal blank 1 as a starting workpiece is inserted into a tool and held on its outer periphery, preferably by an abutment chuck in the manner of DE 44 44 536 C1 , Its central bore 2 may be penetrated by a preferably conically shaped centric mandrel.
  • the conical structure 4 is then subjected to a post-processing to form the flange 7 in order to achieve a shape in which the axial height of the flange is smaller than its radial extent "b".
  • This post-processing can be carried out by means of a further pressure roller, which is designed in the manner of a rotatable pressing or Anstellrolle 5, which is guided radially from outside to inside or by means of a further pressure roller 6, which is guided again axially from outside to inside, namely in particular such that from the conical structure directly in the next operation, the shape of a flange is formed (in particular around a central mandrel around).
  • the angle of attack of the further rotatable pressure roller 6 is preferably about 90 °.
  • an axially and / or radially deliverable rotatable hold-down roller in the manner of the Anstellrolle 5 e.g. at the side of the metal blank, which is radially opposite the spinning roller 3, which at least partially depresses the metal blank, so that it does not lift off the tool in the region in which the spinning roller 3 moves or bulges out from it.
  • a post-processing with other means is conceivable, so by means of a press or the like, which then alternatively forms the flange from the hub-like structure.
  • a press or the like which then alternatively forms the flange from the hub-like structure.
  • the post-processing in the same setting with a further deforming role.
  • Fig. 1 after which the immersion is offset slightly from the outer periphery of the metal blank 1 inwardly, there is the additional advantage that on the outer circumference of the metal blank 1 remains a region 8, which can be subjected to further processing, for example, to a profiling in the manner of profiling a pulley or a toothing of a starter ring or the like form (not shown).
  • a contour e.g. a toothing
  • a contour in the first or another second tool, so that the flange when pressing or the like.
  • a corresponding contour in particular a toothing 10.
  • Fig. 5 shows a processed by the process according to the invention blank 12 for producing a starter ring, which was made of a flat metal blank.
  • an applied (or imprinted) ring 14 for holding down the relatively thin metal blank 1 in the outer region and the possibility of the metal blank in addition also between the outer periphery and the inner flange sections thinner or to press thicker and / or in the direction of the axis S conical and / or stepped to press against the correspondingly formed tool die.
  • a toothing eg radial toothing
  • a toothing in the manner of the toothing 10 would additionally be formed in the flange (not visible in FIG. 5).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Claims (21)

  1. Procédé pour fabriquer une bride sur une tôle ronde au moyen d'au moins un ou plusieurs rouleau(x) presseurs, comprenant les étapes suivantes :
    a) au moyen du au moins un rouleau presseur (3), qui est déplacé radialement vers l'intérieur, on réalise sur la tôle ronde une structure (4) se rétrécissant en direction de la médiatrice (S) de la tôle ronde (1) et de forme conique,
    b) l'épaisseur axiale de la tôle ronde étant réduite au moins par tronçon sur son extension radiale,
    c) à partir de la structure (4) conique, on réalise une bride (7) sur la tôle ronde (1) au moyen d'un réusinage par pressage axial au moyen d'un autre rouleau presseur (5, 6) ou par compression, bride dont l'extension axiale respectivement la hauteur est plus faible que son extension radiale.
  2. Procédé selon la revendication 1, caractérisé en ce que l'extension radiale de la bride (7) est plus de deux fois, en particulier plus de trois fois plus grande que son extension radiale.
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'extension axiale de la bride (7) n'est que légèrement supérieure à l'épaisseur de la tôle ronde de départ.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le rouleau presseur est immergé à l'étape "a" d'abord dans la tôle ronde et est déplacé ensuite radialement de l'extérieur vers l'intérieur.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'angle d'attaque (α) du rouleau presseur (3) par rapport à la surface axiale de la tôle ronde (1) est supérieur à 90°.
  6. Procédé selon la revendication 5, caractérisé en ce que l'angle d'attaque (α) du rouleau presseur (3) par rapport à la surface axiale de la tôle ronde est supérieur à 110° et inférieur à 170°.
  7. Procédé selon la revendication 6, caractérisé en ce que l'angle d'attaque (α) du rouleau presseur (3) par rapport à la surface axiale de la tôle ronde est supérieur à 115° et inférieur à 150°.
  8. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que, lors de la réalisation de la structure conique, un galet de retenue pouvant être avancé axialement et/ou radialement passe en même temps en particulier sur le côté opposé au rouleau presseur, lequel appuie sur la tôle ronde au moins par tronçons de telle sorte que cette tôle ronde ne se soulève pas de l'outil (11) respectivement ne se prévoûte pas dans la zone où le rouleau presseur (3) se déplace.
  9. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'autre rouleau presseur (5) plonge axialement dans la structure (4) conique lors du réusinage.
  10. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'autre rouleau presseur (6) plonge radialement dans la structure (4) conique lors du réusinage. ,
  11. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le diamètre intérieur de la tôle ronde (1) avec la bride (7) après l'étape "a" et "b" est inférieur au diamètre intérieur du perçage (2) centré de la tôle ronde (1) dans la pièce de départ.
  12. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la tôle ronde (1) est traversée à l'étape "a" par un mandrin se rétrécissant à la façon d'un cône.
  13. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la tôle ronde (1) est maintenue sur son pourtour extérieur par un mandrin de butée.
  14. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la tôle ronde (1) est maintenue en complément sur son côté tourné vers le rouleau presseur par une bague.
  15. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la tôle ronde (1) est maintenue au moins par tronçons en complément sur son côté tourné vers le rouleau presseur par un rouleau de retenue.
  16. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la bride est réalisée sur le côté, opposé au rouleau presseur, de la tôle ronde.
  17. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la bride est réalisée sur le côté, tourné vers le rouleau presseur, de la tôle ronde.
  18. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la bride s'étend des deux côtés axiaux de la tôle ronde.
  19. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la bride est appuyée dans un outil présentant un contour, en particulier une denture, de sorte que la bride est dotée sur son côté tourné vers l'outil d'un contour correspondant, en particulier d'une denture (10).
  20. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'outil (11) tourne lors de l'usinage.
  21. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que les rouleaux presseurs et/ou les rouleaux de retenue sont fixés de façon rotative.
EP04803144A 2003-11-17 2004-11-15 Procede de realisation d'un rebord sur un flan circulaire en tôle Not-in-force EP1697066B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10353750 2003-11-17
DE10358844A DE10358844B4 (de) 2003-11-17 2003-12-16 Verfahren zur Herstellung eines Flansches an einer Metallronde und Getriebeteil
PCT/EP2004/012924 WO2005046901A1 (fr) 2003-11-17 2004-11-15 Procede de realisation d'un rebord sur un flan circulaire metallique, et piece de transmission

Publications (2)

Publication Number Publication Date
EP1697066A1 EP1697066A1 (fr) 2006-09-06
EP1697066B1 true EP1697066B1 (fr) 2008-01-02

Family

ID=34593371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04803144A Not-in-force EP1697066B1 (fr) 2003-11-17 2004-11-15 Procede de realisation d'un rebord sur un flan circulaire en tôle

Country Status (9)

Country Link
US (1) US7797976B2 (fr)
EP (1) EP1697066B1 (fr)
JP (1) JP5118852B2 (fr)
KR (1) KR101151463B1 (fr)
AT (1) ATE382441T1 (fr)
CA (1) CA2546338C (fr)
DE (1) DE502004005869D1 (fr)
ES (1) ES2299891T3 (fr)
WO (1) WO2005046901A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010004932A1 (de) 2010-01-18 2011-07-21 WF-Maschinenbau und Blechformtechnik GmbH & Co. KG, 48324 Verfahren zur Herstellung eines rotationssymmetrischen Getriebeteiles sowie Getriebeteil

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NL1026796C2 (nl) * 2004-08-06 2006-02-07 Fontijne Grotnes B V Werkwijze en inrichting voor het door middel van koude vervorming vervaardigen van een velgring.
DE102005035519A1 (de) * 2005-07-25 2007-02-01 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg Verfahren zum Umformen einer Blechronde
JP5415904B2 (ja) * 2009-11-04 2014-02-12 日本スピンドル製造株式会社 塑性加工装置
DE102016205492A1 (de) * 2016-04-04 2017-10-05 Thyssenkrupp Ag Verfahren und Vorrichtung zum Umformen eines Halbzeugs
CN107159768A (zh) * 2017-07-13 2017-09-15 芜湖西诺普汽车零部件科技有限公司 一种螺母板加工工艺及铲旋模具
JP2019171414A (ja) * 2018-03-28 2019-10-10 アイシン・エィ・ダブリュ株式会社 ボス部成形方法
DE102020201889A1 (de) * 2020-02-14 2021-08-19 Sram Deutschland Gmbh Ritzel für einen Fahrrad-Antrieb

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JP2505650Y2 (ja) * 1989-08-08 1996-07-31 本田技研工業株式会社 変速機構
JPH0741849Y2 (ja) * 1990-02-02 1995-09-27 本田技研工業株式会社 動弁機構の給油装置
DE4400257C1 (de) * 1993-12-09 1994-12-01 Wf Maschinenbau Blechformtech Drückverfahren zur spanlosen Herstellung einer Nabe eines die Nabe aufweisenden Getriebeteiles
EP0725693B1 (fr) 1993-12-09 1997-07-30 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co. Kg Procedes de realisation sans enlevement de copeaux d'un moyeu d'organe de transmission
DE4444526C1 (de) 1994-11-30 1995-11-30 Wf Maschinenbau Blechformtech Drückvorrichtung zur spanlosen Herstellung einer Nabe eines die Nabe aufweisenden Getriebeteiles
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DE10033239A1 (de) 2000-07-10 2002-01-24 Wf Maschinenbau Blechformtech Verfahren zur Herstellung einer Verstellscheibe eines stufenlosen Getriebes
DE10160038C1 (de) 2001-12-06 2003-03-13 Winkelmann & Pannhoff Gmbh & C Verfahren zur Herstellung eines rotationssymmetrischen Bauteils

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010004932A1 (de) 2010-01-18 2011-07-21 WF-Maschinenbau und Blechformtechnik GmbH & Co. KG, 48324 Verfahren zur Herstellung eines rotationssymmetrischen Getriebeteiles sowie Getriebeteil
WO2011085829A1 (fr) 2010-01-18 2011-07-21 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co. Kg Procédé de fabrication d'une partie de transmission à symétrie de révolution et partie de transmission

Also Published As

Publication number Publication date
US20070256465A1 (en) 2007-11-08
US7797976B2 (en) 2010-09-21
JP5118852B2 (ja) 2013-01-16
ATE382441T1 (de) 2008-01-15
CA2546338A1 (fr) 2005-05-26
JP2007511370A (ja) 2007-05-10
ES2299891T3 (es) 2008-06-01
DE502004005869D1 (de) 2008-02-14
KR20060126656A (ko) 2006-12-08
KR101151463B1 (ko) 2012-06-01
CA2546338C (fr) 2012-01-10
EP1697066A1 (fr) 2006-09-06
WO2005046901A1 (fr) 2005-05-26

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