EP0336862A1 - Verfahren zur Herstellung einer äusseren Schrägkante an einem zylindrischen Ziehteil - Google Patents

Verfahren zur Herstellung einer äusseren Schrägkante an einem zylindrischen Ziehteil Download PDF

Info

Publication number
EP0336862A1
EP0336862A1 EP89420120A EP89420120A EP0336862A1 EP 0336862 A1 EP0336862 A1 EP 0336862A1 EP 89420120 A EP89420120 A EP 89420120A EP 89420120 A EP89420120 A EP 89420120A EP 0336862 A1 EP0336862 A1 EP 0336862A1
Authority
EP
European Patent Office
Prior art keywords
punch
cup
stamping
die
carried out
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.)
Granted
Application number
EP89420120A
Other languages
English (en)
French (fr)
Other versions
EP0336862B1 (de
Inventor
Gérard Lavorel
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.)
A2C Groupe Pratic Ademva
Original Assignee
A2C Groupe Pratic Ademva
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 A2C Groupe Pratic Ademva filed Critical A2C Groupe Pratic Ademva
Priority to AT89420120T priority Critical patent/ATE81804T1/de
Publication of EP0336862A1 publication Critical patent/EP0336862A1/de
Application granted granted Critical
Publication of EP0336862B1 publication Critical patent/EP0336862B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • 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
    • B21D22/20—Deep-drawing
    • B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles

Definitions

  • the present invention relates to a method for producing an external chamfer on a stamped cylindrical part.
  • Such an external chamfer is conventionally produced by a resumption in turning of the straight edge of the stamped part, this resumption being carried out by means of a tool which removes chips in sufficient quantity to produce the chamfer.
  • the invention aims to remedy this drawback.
  • a method for producing an external chamfer on a stamped cylindrical part consisting, starting from a flat metallic part: - First of all to carry out a conical pre-stamping of the part to be obtained, using a punch whose end piece has a shape of a truncated cone with an angle substantially equal to that of the chamfer to be obtained, with provision for a peripheral rim plan, - then axially severing the outer periphery of the frustoconical end piece obtained, for example by vertical guillotine shears, - And then straighten, by a final stamping, the frustoconical side wall of this stamped in order to obtain a cup with coaxial wall, the edge of this cup then being provided with an external chamfer.
  • the part to be obtained 1 is a cup whose bottom 5 is pierced with an orifice 2 for the passage of a drive shaft, and whose edge is provided with an external chamfer 3 This chamfer 3 is practically essential for carrying out the introduction of the cup 1 into an associated bore.
  • FIGS 2 to 6 show the essential successive stages in the manufacture of the cup 1.
  • the first operation is performed on a first station. It consists of cutting, in a very conventional manner between punch and die, a metal disc 4 of diameter much larger than that of the cup 3.
  • This disc 4 is then transferred to another station, where a conical pre-stamping of this disc 4 is carried out, FIG. 3, the angle at the apex ⁇ of the pre-stamping cone being equal to that of the chamfer to be obtained, while is provided , at the periphery of this stamped, a flat edge.
  • the tool is shaped so that the small base 5 of the truncated cone 6 obtained has the same diameter as the bottom of the cup to be obtained, and that its flank or apothem 7 has a constant length L substantially equal to the height H (FIG. 1) of this cup.
  • the part 6 is then transferred to another station, comprising a guillotine shears with circular periphery which axially cuts, in the vertical direction 8, the external periphery of the frustoconical stamp 6.
  • the stamp 6 is then transferred to a fourth station, where its side 7 is straightened axially, that is to say vertically: this side 7 then becomes circular cylindrical and perpendicular to the bottom 5 of the stamp.
  • This side 7 is then provided with an external chamfer 3 of angle ⁇ , which is the result that we aim to obtain.
  • the piece 6 obtained is then optionally passed through a calibration station, then is made, on a last station ( Figure 6), the central hole 2 for passage of the drive shaft of the cup.
  • the tools used for cutting the disc 4 ( Figure 2) and for drilling the hole 2 ( Figure 6) are conventional tools operating as a cookie cutter. They are therefore not represented.
  • FIG. 7 shows the tool used for stamping, according to FIG. 3, the frustoconical part 6 from the disc 4.
  • This tool comprises a complementary punch 10 and a matrix 11, of frustoconical shape.
  • a conventional sidewall press 12 comes to press strongly on the periphery of the disc 4 in order to maintain it during stamping, which prevents the material from wrinkling.
  • an extraction pusher 24, pushed upwards by an axial spring 13, equips the die 11.
  • FIG. 8 The tool allowing the axial sectioning, according to FIG. 4, of the periphery of the stamping 6, is represented in FIG. 8. It is a circular cutting tool comprising a circular cylindrical punch 14, an associated die 15, a press -wall 16, and an extraction pusher 17 pushed back by a spring 18.
  • the tool used for the straightening according to FIG. 5 is represented in FIG. 9. It comprises a beveled flank press 19, a circular cylindrical matrix, of diameter D equal to the external diameter of the cup 1 to be obtained, a pusher 21 with spring. 22, and a circular cylindrical punch 23, of diameter d equal to the inside diameter of the aforementioned cup 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Photoreceptors In Electrophotography (AREA)
  • Metal Extraction Processes (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Processing Of Meat And Fish (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Adornments (AREA)
EP89420120A 1988-04-06 1989-03-31 Verfahren zur Herstellung einer äusseren Schrägkante an einem zylindrischen Ziehteil Expired - Lifetime EP0336862B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89420120T ATE81804T1 (de) 1988-04-06 1989-03-31 Verfahren zur herstellung einer aeusseren schraegkante an einem zylindrischen ziehteil.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8804971 1988-04-06
FR8804971A FR2629742B1 (fr) 1988-04-06 1988-04-06 Procede de realisation d'un chanfrein exterieur sur une piece cylindrique emboutie

Publications (2)

Publication Number Publication Date
EP0336862A1 true EP0336862A1 (de) 1989-10-11
EP0336862B1 EP0336862B1 (de) 1992-10-28

Family

ID=9365324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420120A Expired - Lifetime EP0336862B1 (de) 1988-04-06 1989-03-31 Verfahren zur Herstellung einer äusseren Schrägkante an einem zylindrischen Ziehteil

Country Status (8)

Country Link
US (1) US4910989A (de)
EP (1) EP0336862B1 (de)
AT (1) ATE81804T1 (de)
CA (1) CA1289418C (de)
DE (1) DE68903291T2 (de)
ES (1) ES2035619T3 (de)
FR (1) FR2629742B1 (de)
GR (1) GR3006221T3 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4109447A1 (de) * 1990-07-19 1992-01-23 Degussa Oberflaechenmodifizierte siliciumdioxide
EP0791414A1 (de) * 1996-02-26 1997-08-27 Karl Marbach GmbH + Co. Stanz- und Formwerkzeug
US5755132A (en) * 1996-02-26 1998-05-26 Karl Marbach Gmbh & Co. Punching and forming tool
CN111822942A (zh) * 2019-04-22 2020-10-27 安克创新科技股份有限公司 装饰网的加工方法
CN112808858A (zh) * 2021-01-25 2021-05-18 重庆理工大学 用于制作弹簧抱挎的级进模

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009511377A (ja) * 2005-10-11 2009-03-19 アイアン マウント コーポレーション 容器並びに容器を製造する方法及び装置
CN101628409B (zh) * 2008-07-15 2011-06-22 施俊兆 金属工具盒的成型方法
CN102139436B (zh) * 2010-01-29 2013-08-14 江苏白雪电器股份有限公司 一种金属防护罩的加工方法
CN102615184A (zh) * 2012-04-04 2012-08-01 无锡欧易博阀业科技有限公司 盘状工件拉伸模具
CN102974976A (zh) * 2012-11-15 2013-03-20 重庆黄龙机械制造有限公司 金属周转箱的制作方法
WO2014134767A1 (zh) * 2013-03-04 2014-09-12 Ding Yuwu 一种汽车钢圈轮辐生产制造工艺及其专用模具
CN104384844A (zh) * 2014-10-08 2015-03-04 柳州科尔特锻造机械有限公司 一种工程机械钢圈轮辐生产工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2321085A (en) * 1941-11-06 1943-06-08 Electromaster Inc Method for producing drawn cups with faced and beveled edges
US2611475A (en) * 1948-10-07 1952-09-23 Remington Arms Co Inc Cup drawing apparatus
US3406554A (en) * 1965-07-06 1968-10-22 Continental Can Co Apparatus for and method of forming containers
DE1932139A1 (de) * 1969-06-25 1971-01-21 Dynamit Nobel Ag Verfahren zur Herstellung tiefgezogener Hohlkoerper
US4534201A (en) * 1982-12-29 1985-08-13 American Can Company Undercut punch to control ironing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US448748A (en) * 1891-03-24 Method of and machine for making cup-shaped articles
US161634A (en) * 1875-04-06 Improvement in methods of producing flanged lids and collars for sheet-metal cans
US2415940A (en) * 1944-10-05 1947-02-18 Remington Arms Co Inc Metal cupping process
SU590053A1 (ru) * 1976-05-10 1978-01-30 Ижевский механический институт Способ получени кольцевых деталей
SU1016008A1 (ru) * 1980-07-14 1983-05-07 Предприятие П/Я М-5344 Способ получени полых изделий с выступом на дне

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2321085A (en) * 1941-11-06 1943-06-08 Electromaster Inc Method for producing drawn cups with faced and beveled edges
US2611475A (en) * 1948-10-07 1952-09-23 Remington Arms Co Inc Cup drawing apparatus
US3406554A (en) * 1965-07-06 1968-10-22 Continental Can Co Apparatus for and method of forming containers
DE1932139A1 (de) * 1969-06-25 1971-01-21 Dynamit Nobel Ag Verfahren zur Herstellung tiefgezogener Hohlkoerper
US4534201A (en) * 1982-12-29 1985-08-13 American Can Company Undercut punch to control ironing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4109447A1 (de) * 1990-07-19 1992-01-23 Degussa Oberflaechenmodifizierte siliciumdioxide
EP0791414A1 (de) * 1996-02-26 1997-08-27 Karl Marbach GmbH + Co. Stanz- und Formwerkzeug
US5755132A (en) * 1996-02-26 1998-05-26 Karl Marbach Gmbh & Co. Punching and forming tool
CN111822942A (zh) * 2019-04-22 2020-10-27 安克创新科技股份有限公司 装饰网的加工方法
CN111822942B (zh) * 2019-04-22 2022-04-29 安克创新科技股份有限公司 装饰网的加工方法
CN112808858A (zh) * 2021-01-25 2021-05-18 重庆理工大学 用于制作弹簧抱挎的级进模
CN112808858B (zh) * 2021-01-25 2022-11-15 重庆理工大学 用于制作弹簧抱挎的级进模

Also Published As

Publication number Publication date
FR2629742A1 (fr) 1989-10-13
GR3006221T3 (de) 1993-06-21
ATE81804T1 (de) 1992-11-15
ES2035619T3 (es) 1993-04-16
CA1289418C (fr) 1991-09-24
DE68903291T2 (de) 1993-06-17
FR2629742B1 (fr) 1994-01-14
DE68903291D1 (de) 1992-12-03
US4910989A (en) 1990-03-27
EP0336862B1 (de) 1992-10-28

Similar Documents

Publication Publication Date Title
EP0336862B1 (de) Verfahren zur Herstellung einer äusseren Schrägkante an einem zylindrischen Ziehteil
BE1003541A3 (fr) Procede et appareil pour former des panneaux d'extremites de recipients.
FR2563756A1 (fr) Procede et appareil pour former un panneau de bout de recipient
EP0363285B1 (de) Leicht zu öffnende Flaschenkapsel aus Aluminiumfolie sowie Verfahren zu ihrer Herstellung
FR2542224A1 (fr) Matrice de retenue d'ebauche
EP0117213A1 (de) Vorrichtung zur Kaltverformung metallischer Werkstücke mit entgegengesetzten Axialteilen
EP0310726B1 (de) Verfahren zum Herstellen konischer Metalldosen und Werkzeug zur Durchführung des Verfahrens
CA2031859C (fr) Procede et dispositif d'emboutissage de recipients de forme tronconique, et recipient ainsi embouti
FR2515885A1 (fr) Procede de production d'une electrode composite pour bougie d'allumage et cette electrode
FR2549401A1 (fr) Procede et dispositif de fabrication de cages a poches pour roulements
EP0243257B1 (de) Verfahren zum Herstellen eines Vakuumröhresockels, ohne dass ein weiteres Abschneiden der Innenleiter nach dem Giessen notwendig ist und Vorrichtung dafür
CH500024A (fr) Procédé de fabrication de produits métalliques par emboutissage
FR2631262A1 (fr) Procede pour la production de profiles metalliques creux, et dispositif pour l'execution du procede
TW202606827A (zh) 利用沖床沖壓特殊工件之成型方法
FR2695338A1 (fr) Procédé pour la réalisation de rangées de piqûres sur une surface d'outil destiné à présenter une fonction de râpe, et outils réalisés.
EP0034977A1 (de) Industrielles Verfahren zur Herstellung von Schmuck, insbesondere von mit eingefassten Steinen versehenen Ringen, vorzugsweise aus Edelmetall, Vorrichtung zur Durchführung dieses Verfahrens und der erhaltene Schmuck
EP0337882A1 (de) Verfahren und Vorrichtung zur Herstellung von geformten Gemüsen oder Früchten sowie geformte Gemüse oder Früchte, hergestellt nach dem Verfahren
BE528289A (de)
CH380431A (fr) Dispositif pour évider et couper des fruits avec élimination du trognon
BE464669A (de)
BE517037A (de)
FR2709111A1 (fr) Barquette métallique notamment en acier à deux compartiments et procédé de fabrication de ce type de barquettes.
CH103565A (fr) Procédé et machine pour la fabrication d'une ébauche de tube compressible et ébauche obtenue par ledit procédé.
BE508433A (de)
FR2638393A1 (fr) Procede et dispositif pour fabriquer une boite de carton a fenetre transparente, et boite d'emballage ainsi fabriquee

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19900120

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: A2C GROUPE PRATIC-ADEMVA

17Q First examination report despatched

Effective date: 19920318

RTI1 Title (correction)
GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19921028

REF Corresponds to:

Ref document number: 81804

Country of ref document: AT

Date of ref document: 19921115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 68903291

Country of ref document: DE

Date of ref document: 19921203

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930331

Ref country code: LI

Effective date: 19930331

Ref country code: GB

Effective date: 19930331

Ref country code: CH

Effective date: 19930331

Ref country code: BE

Effective date: 19930331

Ref country code: AT

Effective date: 19930331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930401

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930401

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2035619

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3006221

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

BERE Be: lapsed

Owner name: A2C GROUPE PRATIC-ADEMVA

Effective date: 19930331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19931001

26N No opposition filed
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930331

REG Reference to a national code

Ref country code: GR

Ref legal event code: MM2A

Free format text: 3006221

EUG Se: european patent has lapsed

Ref document number: 89420120.1

Effective date: 19931110

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980218

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980305

Year of fee payment: 10

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990503

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19991130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050331