EP0885074B1 - Procede et dispositif pour produire des pieces decoupees a la presse - Google Patents

Procede et dispositif pour produire des pieces decoupees a la presse Download PDF

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Publication number
EP0885074B1
EP0885074B1 EP97906163A EP97906163A EP0885074B1 EP 0885074 B1 EP0885074 B1 EP 0885074B1 EP 97906163 A EP97906163 A EP 97906163A EP 97906163 A EP97906163 A EP 97906163A EP 0885074 B1 EP0885074 B1 EP 0885074B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
stage
stamping
raw material
process step
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
EP97906163A
Other languages
German (de)
English (en)
Other versions
EP0885074A1 (fr
Inventor
Alfred Skrabs
Willy Grimm
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.)
Feintool International Holding AG
ZF Friedrichshafen AG
Original Assignee
Feintool International Holding AG
ZF Friedrichshafen AG
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
Application filed by Feintool International Holding AG, ZF Friedrichshafen AG filed Critical Feintool International Holding AG
Publication of EP0885074A1 publication Critical patent/EP0885074A1/fr
Application granted granted Critical
Publication of EP0885074B1 publication Critical patent/EP0885074B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • 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
    • B21D19/00—Flanging or other edge treatment, e.g. of tubes
    • B21D19/005—Edge deburring or smoothing
    • 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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00

Definitions

  • the invention relates to a method for the production of stamped parts, in particular lamellas, in two process steps.
  • JP-A-06234027 (closest prior art) are stamped parts manufactured in that in a device with only one tool in a first Method step a workpiece is punched out and in a second Process step through the burrs created by punching on the workpiece Presses are flattened.
  • Stamped parts in particular lamellae, such as those used for example as a clutch or brake in automatic transmissions, are usually produced in the following process steps: stamping, deburring, straightening and visual inspection.
  • punching the workpiece is punched out of the raw material.
  • stamped burrs are formed on the outer and inner contours. These burrs are removed when deburring.
  • Deburring methods include belt grinding, brushing and surface grinding.
  • straightening the workpiece is brought to a specifiable flatness, for example by rolling.
  • the last step in the procedure is the visual inspection. During the visual inspection, the workpiece is checked for damage, such as scratches or impressions.
  • the workpiece is removed from the respective tool, stored temporarily and transported to the next tool.
  • pretreating the raw material the process steps can be reduced to punching, deburring and visual inspection.
  • One type of pretreatment is relaxation annealing, for example.
  • the disadvantage of this known manufacturing method is the high manufacturing effort and the long manufacturing time.
  • the object of the invention is to reduce the manufacturing outlay and the manufacturing time.
  • the object is achieved by a method according to claim 1.
  • the method comprises only two process steps.
  • a first process step the workpiece is punched out of raw material in a device in a fine blanking stage and, after the punching, is brought into an embossing stage by means of transfer pliers also accommodated in the device.
  • the embossing stage is also within the device.
  • the inner and outer contours are stamped on the workpiece in the embossing step, so that the burrs which have arisen on the workpiece in the first process step are rounded.
  • the solution according to the invention has the advantage that the workpiece is manufactured in just one tool. A Post-treatment and visual inspection are not necessary. Another advantage is that an intermediate storage and a Transport also omitted.
  • a first workpiece be punched from raw material during a work step in the fineblanking stage and, at the same time, the burrs are stamped on a second workpiece in the embossing stage.
  • the first workpiece is automatically transported from the fineblanking stage to the embossing stage by means of the transfer pliers.
  • the second workpiece is removed from the device at the same time and the fineblanking stage is equipped with a new raw material.
  • Reference number 1 shows the device.
  • the device 1 consists of a fine blanking stage 2, a transport tongs 4 and the embossing stage 3.
  • the workpiece 5 is punched from raw material.
  • the workpiece 5 is designed as a lamella in cross section.
  • circumferential stamped burrs 6 are produced on the lamella 5 both on the inner and on the outer contour. In this state, the lamella 5 cannot be used without aftertreatment.
  • the lamella 5 is pressed into a transfer tongs 4 when ejected from the fineblanking stage 2.
  • the transfer pliers 4 automatically transport the finely cut lamella 5 into the embossing step 3 within the device 1.
  • the ridges of the lamella 5 are stamped, in other words the outer and inner contours of the lamella 5 are rounded.
  • the embossing stage 3 consists of an upper die part 8 and a lower die part 9.
  • the lamella 5 thus produced is ready for installation without any further operations.
  • a higher number of machined workpieces is achieved in that a first lamella in the fineblanking stage 2 and a second lamella within the embossing stage 3 are processed simultaneously during one operation in the device 1.
  • the first lamella is brought from the fineblanking stage to the embossing stage 3, as described above.
  • the second lamella finished in the embossing stage 3 is removed from the tool.

Claims (4)

  1. Procédé pour produire des pièces découpées à la presse, notamment des lamelles, en deux étapes de procédé caractérisé en ce que dans la première étape de procédé, la pièce à usiner (5) subit, dans un dispositif (1), un découpage de précision dans une passe de découpage de précision (2) à partir de matière brute, et est transférée, après le découpage de précision, au moyen d'une pince de transfert (4) également logée dans le dispositif (1) dans une passe d'estampage (3), la passe d'estampage (3) se trouvant également à l'intérieur du dispositif (1), et dans une deuxième étape du procédé, dans la passe d'estampage (3), le contour intérieur et extérieur de la pièce à usiner (5) est corrigé de façon à ce que les bavures (6) formées sur la pièce à usiner (5) lors de la première étape du procédé sont arrondies de telle manière que la pièce à usiner (5) ne nécessite plus de traitement ultérieur.
  2. Procédé selon la revendication 1, caractérisé en ce que, pendant une première passe dans l'étape du découpage de précision (2), une première pièce à usiner (5) est découpée dans de la matière brute et, simultanément, dans la passe d'estampage (3), les bavures sont corrigées sur une deuxième pièce à usiner (5).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'après l'accomplissement d'une passe, la première pièce à usiner (5) est transportée de façon automatique à l'intérieur du dispositif (1), au moyen de la pince de transfert (4), à partir de l'étape de découpage de précision (2) vers la passe d'estampage (3), la deuxième pièce à usiner étant évacuée du dispositif (1) et l'étape du découpage de précision (2) étant alimenté avec de la nouvelle matière brute.
  4. Procédé selon la revendication 1, caractérisé en ce que l'étape d'estampage (3) comporte une matrice supérieure (8) et une matrice inférieure (9).
EP97906163A 1996-03-06 1997-03-05 Procede et dispositif pour produire des pieces decoupees a la presse Expired - Lifetime EP0885074B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19608551A DE19608551A1 (de) 1996-03-06 1996-03-06 Verfahren und Vorrichtung zur Herstellung von Stanzteilen
DE19608551 1996-03-06
PCT/EP1997/001093 WO1997032678A1 (fr) 1996-03-06 1997-03-05 Procede et dispositif pour produire des pieces decoupees a la presse

Publications (2)

Publication Number Publication Date
EP0885074A1 EP0885074A1 (fr) 1998-12-23
EP0885074B1 true EP0885074B1 (fr) 2000-01-05

Family

ID=7787319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97906163A Expired - Lifetime EP0885074B1 (fr) 1996-03-06 1997-03-05 Procede et dispositif pour produire des pieces decoupees a la presse

Country Status (7)

Country Link
US (1) US6212930B1 (fr)
EP (1) EP0885074B1 (fr)
JP (1) JP2000506781A (fr)
KR (1) KR100491847B1 (fr)
DE (2) DE19608551A1 (fr)
ES (1) ES2140213T3 (fr)
WO (1) WO1997032678A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010028280A1 (de) 2010-04-28 2011-11-03 Zf Friedrichshafen Ag Verfahren zur Herstellung von Stanzteilen und Vorrichtung

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19906980B4 (de) * 1999-02-19 2013-09-19 Borg-Warner Automotive Gmbh Eingriffsteil für ein Kraftübertragungsaggregat
DE19957511A1 (de) 1999-11-30 2001-06-21 Borg Warner Automotive Gmbh Lamelle für ein Kraftübertragungsaggregat, zum Beispiel für eine Schaltkupplung
US6543596B2 (en) 2000-04-24 2003-04-08 Borgwarner, Inc. Multi-disk friction device having low-drag characteristics
US6634866B2 (en) 2001-08-17 2003-10-21 Borgwarner, Inc. Method and apparatus for providing a hydraulic transmission pump assembly having a one way clutch
US6554113B2 (en) 2001-09-20 2003-04-29 Borgwarner, Inc. Torque limiting accessory drive assembly
DE50214253D1 (de) 2002-06-15 2010-04-15 Borgwarner Inc Lamelle für eine Mehrscheibenlamellenkupplung
US6868949B2 (en) 2003-02-06 2005-03-22 Borgwarner, Inc. Start-up clutch assembly
DE10334880A1 (de) 2003-07-29 2005-03-03 Ina-Schaeffler Kg Anlaufscheibe für Planetengetriebe
US7178375B2 (en) 2004-10-26 2007-02-20 Means Industries, Inc. Apparatus and method for stamping and deburring clutch discs
PL1914022T3 (pl) * 2006-09-01 2009-11-30 Feintool Ip Ag Sposób i urządzenie do wytwarzania trójwymiarowych części okuć za pomocą operacji formowania plastycznego i wykrawania dokładnego
EP1894646B1 (fr) * 2006-09-01 2012-10-17 Feintool Intellectual Property AG Procédé et dispositif de fabrication d'une denture sur un corps tridimensionnel déformé et estampé de haute précision
EP1900452B1 (fr) 2006-09-13 2012-05-30 Feintool Intellectual Property AG Procédé de renforcement d'un paroi d'une garniture tridimensionnelle
EP2357048B1 (fr) * 2010-02-10 2013-06-05 Feintool Intellectual Property AG Procédé et dispositif destinés à influencer la surface de coupe et de fonction sur des pièces finies coupées en fines tranches
AT510787A1 (de) 2010-12-03 2012-06-15 Miba Frictec Gmbh Verfahren zum herstellen eines reibelementes
EP2842653B1 (fr) 2013-08-28 2016-05-11 Feintool International Holding AG Outil et procédé de fabrication de pièces découpées
JP6325509B2 (ja) * 2015-11-11 2018-05-16 ファナック株式会社 工作機械
ES2941059T3 (es) * 2017-05-30 2023-05-16 Feintool Int Holding Ag Método de fabricación de piezas troqueladas

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Publication number Priority date Publication date Assignee Title
US1588057A (en) * 1925-01-12 1926-06-08 Sanitary Products Corp Method of making spoons
US2305064A (en) * 1940-11-25 1942-12-15 Thompson Prod Inc Machine for making flexible valve seat inserts
US3635067A (en) * 1969-09-24 1972-01-18 Honeywell Inc Apparatus and method for fine blanking of parts
SE343801B (fr) * 1970-09-23 1972-03-20 Graenges Essem Ab
SU912388A1 (ru) * 1980-07-16 1982-03-15 Предприятие П/Я М-5481 Комбинированный штамп
GB2127336B (en) * 1982-08-30 1986-04-03 Amada Co Ltd Improvements in or relating to presses
JPS6310037A (ja) * 1986-07-01 1988-01-16 Yokoyama Seisakusho:Kk 平歯車の自動生産方法
SU1551464A1 (ru) * 1988-02-22 1990-03-23 П.М.Огрызков Способ обрезки обло на поковках и штамп дл его осуществлени
US5148900A (en) * 1991-06-25 1992-09-22 New Venture Gear, Inc. Viscous coupling apparatus with coined plates and method of making the same
JPH06234027A (ja) * 1993-02-09 1994-08-23 Fuji Oozx Inc ワーク外周縁のばり抜き装置
JP3435552B2 (ja) * 1994-03-28 2003-08-11 フジオーゼックス株式会社 加工機等へのワーク供給排出装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010028280A1 (de) 2010-04-28 2011-11-03 Zf Friedrichshafen Ag Verfahren zur Herstellung von Stanzteilen und Vorrichtung
US9533340B2 (en) 2010-04-28 2017-01-03 Zf Friedrichshafen Ag Production method for stamped parts and apparatus
DE102010028280B4 (de) * 2010-04-28 2020-11-12 Zf Friedrichshafen Ag Verfahren zur Herstellung von Stanzteilen sowie Vorrichtung und Verwendung

Also Published As

Publication number Publication date
ES2140213T3 (es) 2000-02-16
DE59700973D1 (de) 2000-02-10
EP0885074A1 (fr) 1998-12-23
US6212930B1 (en) 2001-04-10
KR19990087433A (ko) 1999-12-27
DE19608551A1 (de) 1997-09-11
KR100491847B1 (ko) 2005-09-02
WO1997032678A1 (fr) 1997-09-12
JP2000506781A (ja) 2000-06-06

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