US20040168496A1 - Apparatus for manufacturing a formed body having a concentric hub - Google Patents

Apparatus for manufacturing a formed body having a concentric hub Download PDF

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Publication number
US20040168496A1
US20040168496A1 US10/793,246 US79324602A US2004168496A1 US 20040168496 A1 US20040168496 A1 US 20040168496A1 US 79324602 A US79324602 A US 79324602A US 2004168496 A1 US2004168496 A1 US 2004168496A1
Authority
US
United States
Prior art keywords
mandrel
hub
round blank
pressure surface
roller
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.)
Abandoned
Application number
US10/793,246
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English (en)
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7698718&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20040168496(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by WF Maschinenbau und Blechformtecknik GmbH and Co KG filed Critical WF Maschinenbau und Blechformtecknik GmbH and Co KG
Assigned to WF-MASCHINENBAU UND BLECHFORMTECHNIK GMBH & CO reassignment WF-MASCHINENBAU UND BLECHFORMTECHNIK GMBH & CO ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FRIESE, UDO
Publication of US20040168496A1 publication Critical patent/US20040168496A1/en
Abandoned legal-status Critical Current

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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
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
    • B21H1/04—Making articles shaped as bodies of revolution discs; disc wheels with rim, e.g. railways wheels or pulleys

Definitions

  • This invention relates to an apparatus for manufacturing a formed body having a concentric hub from a round blank, with a rotating tool plate on which the round blank lies.
  • Formed bodies manufactured with such apparatus find use in many application areas.
  • the chipless manufacturing method known as flow-forming is usually a cold deformation method and is distinguished by a variety of advantages permitting, in particular, rational and economical manufacturing for mass-produced articles such as are used for example as transmission parts in automobile making.
  • An apparatus of the stated type is known for example from WO 94/20235.
  • a formed body provided with a concentric hub is manufactured by flow-forming from a round metal blank, that is, a sheet-metal plate having a central hole.
  • material from the round blank is squeezed out by radial infeeding and displaced in the direction of the mandrel, where it is shaped into a hub by shaping against the mandrel.
  • material displacement which can also be called flow
  • the thickness of the round blank is reduced in accordance with the material removal necessary for hub shaping.
  • the follower roller serves first to prevent flexing of the round blank during flow-forming and second to perform an exact shaping against the mandrel.
  • the follower roller follows the work roller at a close interval.
  • the work rollers are fashioned such that their circumferential pressure surface lies parallel to the central longitudinal axis of the mandrel or of the round blank, the pressure surface directly adjoining the flow-forming edge, which can be brought into engagement with the round blank.
  • the material separated from the round blank builds up in front of the pressure surface and is displaced into the region of the mandrel, where it flows along the mandrel until it reaches a stop that controls the height of the hub.
  • the hub so far preshaped is not indeed pressed directly against the mandrel by the work roller. This is effected by the follower roller, whose pressure surface lies parallel to the central longitudinal axis and with which the hub, previously slightly oblique or takes on a somewhat funnel-like shape, presses against the mandrel in such a way that a cylindrical shape comes about.
  • the follower roller has a projection for the end limitation of the hub, against which projection the hub abuts with its free end face during shaping.
  • the mandrel here can likewise have a stop in the shape of a shoulder that limits the height of the hub and lies in the same plane, parallel to the round blank, as the projection of the pressure roller.
  • the width of the projection and of the shoulder are preferably equally large but together equal to at most the wall thickness of the hub.
  • the hub is initially shaped by the work roller in a funnel shape with its wall positioned obliquely outwardly relative to the central axis of the mandrel and is afterward brought to a cylindrical shape by pressing of the wall against the mandrel by the follower roller.
  • the single figure shows a partial section through an apparatus according to the invention in a schematic longitudinal section.
  • the figure depicts an apparatus for manufacturing a formed body 1 having a concentric hub 12 , which apparatus has a rotating tool plate 2 in the shape of a chuck, a work roller 4 , a follower roller 7 , and a mandrel 3 .
  • Tool plate 2 has a recess in which there lies a round blank 11 onto which hub 12 can be shaped by work roller 4 and follower roller 7 , to which end work roller 4 can be infed axially and radially relative to the central axis of round blank 11 .
  • this pressure surface is inclined outwardly relative to the longitudinal axis of mandrel 3 so that an initially roughly funnel-shaped hub is fashioned, as illustrated at the right in the figure.
  • the inclination angle ⁇ of pressure surface 6 is preferably 3-5°.
  • Follower roller 7 follows immediately behind work roller 4 , being supported against the correspondingly formed surface of round blank 11 .
  • follower roller 7 also has a pressure surface 13 , which, however, lies parallel to the central axis of mandrel 3 . Initially inclined hub 12 is pressed against mandrel 3 by this pressure surface and comes into abutment there so that a concentric cylindrical shape of hub 12 is generated.
  • follower roller 7 On its side facing away from round blank 11 , follower roller 7 has a projection 8 that represents an end limitation in the fashioning of hub 12 and governs its height dimension.
  • mandrel 3 has a circumferential shoulder 9 , which likewise forms a stop against which hub 12 abuts.
  • the respective stop surfaces of shoulder 9 and projection 8 lie in one plane.
  • annular gap 10 is formed between projection 8 and mandrel 3 , into which gap excess material can flow during hub shaping, so that an otherwise exact fashioning of hub 12 is possible without any problem. This excess can subsequently be removed by machining.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Adornments (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Forging (AREA)
US10/793,246 2001-09-12 2002-09-06 Apparatus for manufacturing a formed body having a concentric hub Abandoned US20040168496A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10144834.1 2001-09-12
DE10144834A DE10144834A1 (de) 2001-09-12 2001-09-12 Vorrichtung zur Herstellung eines eine konzentrische Nabe aufweisenden Formkörpers
PCT/EP2002/009994 WO2003022483A1 (de) 2001-09-12 2002-09-06 Vorrichtung zur herstellung eines eine konzentrische nabe aufweisenden formkörpers

Publications (1)

Publication Number Publication Date
US20040168496A1 true US20040168496A1 (en) 2004-09-02

Family

ID=7698718

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/793,246 Abandoned US20040168496A1 (en) 2001-09-12 2002-09-06 Apparatus for manufacturing a formed body having a concentric hub

Country Status (10)

Country Link
US (1) US20040168496A1 (de)
EP (1) EP1425120B1 (de)
JP (1) JP2005501732A (de)
KR (1) KR20040039342A (de)
AT (1) ATE390227T1 (de)
CA (1) CA2458039A1 (de)
DE (2) DE10144834A1 (de)
DK (1) DK1425120T3 (de)
ES (1) ES2304461T3 (de)
WO (1) WO2003022483A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1712310A1 (de) * 2005-04-13 2006-10-18 Repkon Machine and Tool Industry & Trade Ltd. Verfahren und Vorrichtung zum Anformen einer Nut
CN102151737A (zh) * 2011-04-25 2011-08-17 董利强 一种皮带轮毛坯旋压加工工艺

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101196415B1 (ko) 2007-01-04 2012-11-02 에스케이케미칼주식회사 백색도가 높은 폴리아릴렌설파이드 수지 및 이의 제조방법
CN109158469B (zh) * 2018-08-03 2020-05-19 华中科技大学 一种圆环形板料环形凸台渐进增厚成形方法
JP2024087541A (ja) * 2022-12-19 2024-07-01 日本スピンドル製造株式会社 スピニング加工装置、突起状の円環部を有する物品の製造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5987952A (en) * 1996-06-24 1999-11-23 The Gates Corporation Method for making a hub/pulley with a radially inward annular collar
US6484547B1 (en) * 1999-07-28 2002-11-26 Kanemitsu Corporation Sheet metal member and method of manufacturing the member
US6536253B1 (en) * 2000-03-10 2003-03-25 Kanemitsu Corporation Slotting method, slotting device, and method of manufacturing metal sheet brake shoe by slotting
US6598443B2 (en) * 2000-04-26 2003-07-29 A. J. Rose Manufacturing Co. Blind bore hub and method of forming
US6647839B2 (en) * 2000-03-14 2003-11-18 Nissan Motor Co., Ltd. Method of forming an integral tubular projection in a work by spinning and a product produced by the same
US6691542B2 (en) * 2000-09-26 2004-02-17 Aisin Aw Co., Ltd. Method and apparatus for manufacturing a cylindrical member, and cylindrical member having splines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB590211A (en) * 1944-01-31 1947-07-10 Standard Telephones Cables Ltd Methods of and means for rolling annular metal bodies
WO1994020235A1 (de) * 1993-03-02 1994-09-15 Wf-Maschinenbau Und Blechformtechnik Gmbh & Co. Kg Verfahren zur spanlosen herstellung einer nabe eines die nabe aufweisenden getriebeteiles
JP2719563B2 (ja) * 1995-10-25 1998-02-25 日本イスエード株式会社 段付きプーリーの製造方法
JP3387831B2 (ja) * 1998-03-09 2003-03-17 小島プレス工業株式会社 円筒部が一体形成されてなる金属製品の製造方法
DE10033089A1 (de) * 2000-02-15 2001-08-23 Wf Maschinenbau Blechformtech Verfahren zur spanlosen Herstellung eines Bauteiles mit Nabe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5987952A (en) * 1996-06-24 1999-11-23 The Gates Corporation Method for making a hub/pulley with a radially inward annular collar
US6484547B1 (en) * 1999-07-28 2002-11-26 Kanemitsu Corporation Sheet metal member and method of manufacturing the member
US6536253B1 (en) * 2000-03-10 2003-03-25 Kanemitsu Corporation Slotting method, slotting device, and method of manufacturing metal sheet brake shoe by slotting
US6647839B2 (en) * 2000-03-14 2003-11-18 Nissan Motor Co., Ltd. Method of forming an integral tubular projection in a work by spinning and a product produced by the same
US6598443B2 (en) * 2000-04-26 2003-07-29 A. J. Rose Manufacturing Co. Blind bore hub and method of forming
US6691542B2 (en) * 2000-09-26 2004-02-17 Aisin Aw Co., Ltd. Method and apparatus for manufacturing a cylindrical member, and cylindrical member having splines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1712310A1 (de) * 2005-04-13 2006-10-18 Repkon Machine and Tool Industry & Trade Ltd. Verfahren und Vorrichtung zum Anformen einer Nut
CN102151737A (zh) * 2011-04-25 2011-08-17 董利强 一种皮带轮毛坯旋压加工工艺

Also Published As

Publication number Publication date
ES2304461T3 (es) 2008-10-16
EP1425120B1 (de) 2008-03-26
DK1425120T3 (da) 2008-07-21
EP1425120A1 (de) 2004-06-09
DE50211980D1 (de) 2008-05-08
DE10144834A1 (de) 2003-03-27
WO2003022483A1 (de) 2003-03-20
KR20040039342A (ko) 2004-05-10
CA2458039A1 (en) 2003-03-20
JP2005501732A (ja) 2005-01-20
ATE390227T1 (de) 2008-04-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WF-MASCHINENBAU UND BLECHFORMTECHNIK GMBH & CO, GE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FRIESE, UDO;REEL/FRAME:015063/0702

Effective date: 20040302

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION