EP2411168B1 - Procédé d'estampage - Google Patents

Procédé d'estampage Download PDF

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Publication number
EP2411168B1
EP2411168B1 EP10717503.6A EP10717503A EP2411168B1 EP 2411168 B1 EP2411168 B1 EP 2411168B1 EP 10717503 A EP10717503 A EP 10717503A EP 2411168 B1 EP2411168 B1 EP 2411168B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
pressure plate
lower die
sides
counter
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
EP10717503.6A
Other languages
German (de)
English (en)
Other versions
EP2411168A2 (fr
Inventor
Kurt Meyer
Jörg Meyer
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.)
Gustav Meyer Stanztechnik & Co KG GmbH
Original Assignee
Gustav Meyer Stanztechnik & Co KG GmbH
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 Gustav Meyer Stanztechnik & Co KG GmbH filed Critical Gustav Meyer Stanztechnik & Co KG GmbH
Priority to PL10717503T priority Critical patent/PL2411168T3/pl
Publication of EP2411168A2 publication Critical patent/EP2411168A2/fr
Application granted granted Critical
Publication of EP2411168B1 publication Critical patent/EP2411168B1/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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/32—Perforating, i.e. punching holes in other articles of special shape
    • 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
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/06—Making more than one part out of the same blank; Scrapless working
    • B21D28/08—Zig-zag sequence working
    • 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
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B21D28/265—Perforating, i.e. punching holes in sheets or flat parts with relative movement of sheet and tools enabling the punching of holes in predetermined locations of the sheet, e.g. holes punching with template
    • 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
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/30—Perforating, i.e. punching holes in annular parts, e.g. rims
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/26—Making machine elements housings or supporting parts, e.g. axle housings, engine mountings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K23/00—Making other articles
    • B21K23/04—Making other articles flanged articles

Definitions

  • the invention relates to a stamping method for producing a bushing in a planar sheet-metal workpiece with both sides outwardly directed collar of a flat sheet-metal workpiece.
  • a disadvantage of such a sheet metal passage is in particular that if it is introduced into a several millimeters thick sheets and the resulting through hole is to be used as a bearing seat for a shaft bearing, that only a single-ended force can be introduced into the sheet.
  • the sheet in order to accommodate permanently high bearing forces, the sheet must be dimensioned thick accordingly, which adversely affects the overall weight and cost of a device constructed therewith.
  • EP 2 043 178 A1 Also known is a battery lid with a projection around a through hole and its manufacturing method, EP 2 043 178 A1
  • the projection extends only asymmetrically in an inward or outward direction.
  • the object of the invention is to provide a stamping method with which a collar with through-hole can be produced on both sides of a workpiece in a single workstation.
  • a pressure plate and a counter-pressure plate with cylindrical recesses with identical inner contours and with each other to the recesses mutually facing beads include the intermediate workpiece and press on both sides a circumferential groove therein, with a lower punch and an upper punch a punch with each cylindrical cross sections are the same and with the inner contours of the recesses matching inner contours are guided therein, which also include the workpiece, so that behind the groove a first, both sides circumferential thickening of the sheet is produced.
  • the recesses and the punch can optionally have circular cylindrical, oval or polygonal cross-sectional contours.
  • the lower punch and the counter-pressure plate move upwards, wherein the base plate remains relative to the lower punch and the pressing force between the pressure plate and the counter-pressure plate are maintained, so that the distance between the lower punch and upper punch is reduced and the volume of the workpiece located therebetween to the outside pressed and the double-sided circumferential thickening is increased.
  • the upper punch moves first down and presses there again another part of the volume of the workpiece to the outside and brings so the double-sided circumferential thickening to its final dimension, wherein the workpiece is punched out with continued movement of the upper punch and then removed after moving apart of the punch and plates from the punch.
  • a two-sided sheet metal passage or a double-sided collar can be introduced into a metal sheet which, unlike single-sided passes, allows a symmetrical introduction of force into the workpiece.
  • a function reversal can take place in which the counter-pressure plate on a support plate firmly resting as a die and the lower punch acts as a counter-holder, said function reversal by a mechanical, electrical, hydraulic, pneumatic or other changing device in the Punching can be done.
  • the workpiece can also be provided with a pre-hole, which significantly reduces the forces required for deformation.
  • the sheet-like workpiece produced by the punching process several millimeters thick is then provided on both sides with a circumferentially tightened collar in which a cylindrical through hole punched and pressed in the transition from the collar to the workpiece a circumferential groove.
  • the collar has the same height on both sides, so that a symmetrical introduction of force into the metal sheet is possible.
  • the workpiece produced by the punching method according to the invention further has a through hole with an inner contour with such a good and dimensionally accurate wall quality that it can be used eg as final dimensions for the seat of an outer ring of a shaft bearing to be inserted therein, without the through hole having to be further processed. Deviating from the circular cylindrical Qüeritessform cross-sectional shapes of the through hole are also displayed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Punching Or Piercing (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Claims (4)

  1. Procédé d'estampage pour la fabrication d'une douille dans une pièce plane en forme de tôle (6), comprenant un collet (9) orienté des deux côtés vers l'extérieur, caractérisé en ce que, dans la première étape de procédé, une plaque de pression (3) et une plaque de contre-pression (2), avec des évidements cylindriques respectifs ayant des contours intérieurs identiques avec des bourrelets respectifs tournés l'un vers l'autre autour des évidements, entourent la pièce (6) et impriment dans celle-ci une rainure des deux côtés, un poinçon inférieur (1) et un poinçon supérieur (4) avec à chaque fois des contours intérieurs de mêmes sections transversales cylindriques et coïncidant avec les contours intérieurs de l'évidement étant guidés dans ladite rainure et entourant également la pièce (6), de sorte que derrière la rainure (11) soit produit un premier épaississement de la pièce (6), périphérique des deux côtés, dans la deuxième étape de procédé, le poinçon inférieur (1) et la plaque de contre-pression (2) se déplacent vers le haut, la plaque de contre-pression (2) restant en retrait par rapport au poinçon inférieur (1) et la force de pression entre la plaque de pression (3) et la plaque de contre-pression (2) étant conservée, de sorte que la distance entre le poinçon inférieur (1) et le poinçon supérieur (4) est réduite et que le volume se trouvant entre eux est pressé vers l'extérieur et ainsi l'épaississement périphérique des deux côtés est augmenté, et dans la troisième étape de procédé, tout en maintenant la force de pression de la plaque de pression (3) et la force de retenue conjuguée du poinçon inférieur (1), le poinçon supérieur (4) presse d'abord une partie du volume de la pièce (6) vers le bas et vers l'extérieur et l'épaississement périphérique des deux côtés est augmenté à sa dimension définitive et ensuite la pièce (6) est perforée dans la même étape de procédé.
  2. Procédé d'estampage selon la revendication 1, caractérisé en ce qu'une inversion de fonction se produit en tant qu'étape intermédiaire entre la deuxième et la troisième étape de procédé, dans laquelle la plaque de contre-pression (2) repose fixement sur une plaque de support (5) et sert à présent de matrice, et le poinçon inférieur (1) sert de contre-support.
  3. Procédé d'estampage selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un trou pilote (8) est estampé dans la pièce (6) en tant qu'étape de préparation avant la première étape de procédé.
  4. Procédé d'estampage selon l'une quelconque des revendications précédentes, caractérisé en ce que l'inversion de fonction dans l'étape intermédiaire s'effectue par un dispositif d'inversion dans la poinçonneuse.
EP10717503.6A 2009-03-25 2010-03-24 Procédé d'estampage Not-in-force EP2411168B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10717503T PL2411168T3 (pl) 2009-03-25 2010-03-24 Sposób tłoczenia

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009014217A DE102009014217B4 (de) 2009-03-25 2009-03-25 Stanzverfahren und damit hergestelltes Werkstück
PCT/DE2010/000353 WO2010108486A2 (fr) 2009-03-25 2010-03-24 Procédé d'estampage et pièce ainsi fabriquée

Publications (2)

Publication Number Publication Date
EP2411168A2 EP2411168A2 (fr) 2012-02-01
EP2411168B1 true EP2411168B1 (fr) 2015-02-25

Family

ID=42635320

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10717503.6A Not-in-force EP2411168B1 (fr) 2009-03-25 2010-03-24 Procédé d'estampage

Country Status (5)

Country Link
EP (1) EP2411168B1 (fr)
DE (1) DE102009014217B4 (fr)
ES (1) ES2536751T3 (fr)
PL (1) PL2411168T3 (fr)
WO (1) WO2010108486A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6567292B2 (ja) * 2014-03-17 2019-08-28 株式会社東亜鍛工所 孔を有する金属板の製造方法、周設孔付外歯歯車の製造方法及び金属板の製造方法
DE102015114317A1 (de) * 2015-08-28 2017-03-02 Thyssenkrupp Ag Auskragen mit großer Kragenwanddicke

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550110A1 (fr) * 1983-08-04 1985-02-08 Marchal Equip Auto Procede de realisation d'un collet double embouti et piece a collet double ainsi obtenue

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437893A2 (fr) * 1978-10-03 1980-04-30 Perrier Jean Procede de fabrication de pieces plates de precision
US4428214A (en) * 1982-02-08 1984-01-31 Deere & Company Flow drilling process and tool therefor
DE19746477A1 (de) * 1997-10-22 1999-04-29 Itt Mfg Enterprises Inc Blechteil als Halbzeug u. Komponente eines Verbundteiles sowie Verfahren zu deren Herstellung
JP2004237339A (ja) * 2003-02-07 2004-08-26 Nsk Warner Kk クラッチハウジングの製造方法
KR20080011299A (ko) * 2005-05-26 2008-02-01 쇼와 덴코 가부시키가이샤 구멍 형성 가공 방법 및 구멍 형성 가공 장치
JP2007216293A (ja) * 2006-02-20 2007-08-30 Tsubakimoto Chain Co 鋼板製スプロケット及びその製造方法
US8003248B2 (en) * 2007-09-27 2011-08-23 Greatbatch Ltd. Battery lid with integral thick boss surrounding a terminal hole

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550110A1 (fr) * 1983-08-04 1985-02-08 Marchal Equip Auto Procede de realisation d'un collet double embouti et piece a collet double ainsi obtenue

Also Published As

Publication number Publication date
ES2536751T3 (es) 2015-05-28
DE102009014217B4 (de) 2010-12-09
PL2411168T3 (pl) 2015-08-31
DE102009014217A1 (de) 2010-09-30
WO2010108486A4 (fr) 2011-05-05
WO2010108486A3 (fr) 2011-03-17
WO2010108486A2 (fr) 2010-09-30
EP2411168A2 (fr) 2012-02-01

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