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EP1007241B1 - Procede pour realiser des surfaces de coupe exactes - Google Patents

Procede pour realiser des surfaces de coupe exactes Download PDF

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Publication number
EP1007241B1
EP1007241B1 EP98947492A EP98947492A EP1007241B1 EP 1007241 B1 EP1007241 B1 EP 1007241B1 EP 98947492 A EP98947492 A EP 98947492A EP 98947492 A EP98947492 A EP 98947492A EP 1007241 B1 EP1007241 B1 EP 1007241B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
contour
cutting
tooth
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.)
Expired - Lifetime
Application number
EP98947492A
Other languages
German (de)
English (en)
Other versions
EP1007241A1 (fr
Inventor
Junichi Sunaga
Wolfgang Rose
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
Original Assignee
Feintool International Holding 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 filed Critical Feintool International Holding AG
Publication of EP1007241A1 publication Critical patent/EP1007241A1/fr
Application granted granted Critical
Publication of EP1007241B1 publication Critical patent/EP1007241B1/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
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49995—Shaping one-piece blank by removing material
    • Y10T29/49996—Successive distinct removal operations

Definitions

  • the invention relates to a method for producing exact cutting surfaces on a workpiece by punching or cutting, especially by fine cutting, wherein first punching out or cutting out a contour in a distance from the actual contour of the workpiece and then a scraping up to the contour of the Workpiece takes place.
  • Functional shapes on fineblanked parts are always the requirement for little or little edge indentation levied. Especially the protruding, acute-angled ones
  • the shapes of the finely cut parts are large Moving in, e.g. Ratchet teeth or gears.
  • the removal one on the cutting surface of a finely cut part resulting edge indentation and one of the edge indentation opposite ridge is cut through executed. This increases the proportion of the Functional surface; this includes making the component higher can be loaded or at the prescribed carrying height thinner sheet thicknesses can be transferred.
  • CH 665 367 A2 there is a re-cutting process described, in which the recutting in Cutting direction or opposite to the cutting direction the preliminary stage of the fineblanking process. That is, in several stages are approximated to the actual one desired contour of the workpiece to be manufactured.
  • the re - cutting creates chips that in the Tool or remain in the press and in the course of Time can cause significant disruption.
  • the present invention is based on the object To develop processes of the type mentioned above, in which the No disadvantage of the chips remaining in the tool occurs.
  • the solution to this problem is that in at least one Level the scraping only to a part of the thickness of the Workpiece and in a final stage the contour of the workpiece by re-scraping in the opposite Direction for punching or cutting is reached.
  • the main advantage of this procedure is that the Chip certainly remains on the material strip and with this strip of material, i.e. punched grid, from which Tool or the press is discharged. It doesn't come to release the chip from the lead frame, which means that no loose chip remains in the tool.
  • Another major advantage is that for one of the indentations created by fineblanking again in the final stage of resharpening, the opposite the direction of fineblanking is carried out and at the same time compared to that of fineblanking indentation only a small indentation through the Resurfacing arises. The ridge also becomes complete away.
  • the first stage of re-scraping is preferably carried out up to half the thickness of the workpiece. This is done a favorable power distribution, because in the second stage of the Scraping already half of that to be scraped Material is converted into a chip.
  • the first stage of resharpening should also be around at least half the distance between one Tooth. In the second stage, the whole Distance away.
  • Re-scraping in several stages in or opposite to the Cutting or punching direction takes place. This mainly depends on the material used for the workpiece.
  • FIG. 1 shows a finely cut pawl 1, whose tooth 2 additionally cut or scraped has been.
  • the scraping of an already cut shape also refers to the inner and outer forms of an in cut line contour closed and limited not only on tooth areas as shown in Figure 1.
  • the tooth contours are provided with sharp edges 3, whereby Tooth cut surfaces 4.1 and 4.2 right-angled, free of edges and are low in burrs.
  • the fineblanking process is shown schematically in FIGS 5 shown. Before the actual fineblanking process into a strip of material 5 outside a cutting line 6 a notch 8 is pressed in by means of a ring spike 7.
  • the Ring-shaped tooth 7 can either be a guide plate 9 or one Cutting plate 10 or both a guide plate 9 as also a cutting plate 10 (not shown) of the Fineblanking be molded.
  • the edge indentation is caused by the the latter measure, i.e. the attachment of the ring spike 7.1 and 7.2 both on the guide plate 9 and on the Insert 10 significantly reduced; this measure is but expensive for manufacturing and maintenance reasons.
  • the in Figures 3 and 5 removable feed width is c and the feed depth of the edge feed 11.1 with d designated.
  • FIGs 6 and 7 is the schematic Resharpening process on the cut surface 4.1 or 4.2 of the finely cut ratchet tooth 2 shown. This will in a first step in the material strip 5 a ratchet tooth hole 12 is formed, which of a dash-dotted outline 13 of the ratchet tooth 2 maintains a distance a.
  • the figure in FIG Edge feeder 11 and edge feeder 11 opposite ridge 14 can be seen. Cutting out the Pawl tooth hole 12 takes place in the cutting direction x.
  • a re-scraping takes place in the Area of the distance a between the contour 13 of the Pawl tooth 2 and the first inner contour 15 of Pawl tooth hole 12.
  • a scraping takes place around half of the distance a and about half of the Thickness d of tooth 2. This creates a chip 16 which but remains on tooth 2.
  • a re-scraping takes place against the cutting direction x by the entire dimension of the Distance a, so that now both the edge feed 11 and also the ridge 14 is removed and an exact Cut surface 4 on the tooth 2 is formed.
  • the Span 16.1 remains on the tool strip 5 and is with this Material strips 5 from the corresponding tool discharged.
  • FIGS of a replenishment process Another exemplary embodiment is shown in FIGS of a replenishment process according to the invention.
  • the first part of the figures is a tooth 2.1 from a Material strips 5.1 punched out, the first Inner contour 15.1 the distance a from a desired maintains the final contour 13.1.
  • the punching direction is indicated by the arrow in Figure 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (4)

  1. Procédé pour réaliser des surfaces de coupe exactes (4.1, 4.2) sur une pièce à usiner (2, 2.2), par estampage ou découpage, en particulier par découpage fin, tout d'abord ayant lieu un estampage ou un découpage d'un contour (15, 15.1) à une distance (a) du contour proprement-dit (13, 13.1) de la pièce à usiner (2, 2.2) et ensuite un rabotage fin jusqu'au contour (13, 13.1) de la pièce à usiner (2, 2.2),
       caractérisé par le fait    que, dans au moins une étape, le rabotage fin a lieu uniquement jusqu'à une partie de l'épaisseur (d) de la pièce à usiner et que, dans une dernière étape, le contour (13, 13.1) de la pièce à usiner (2, 2.2) est obtenu par un rabotage fin dans le sens opposé à celui de l'estampage ou du découpage.
  2. Procédé selon la revendication 1, caractérisé par le fait que la première étape du rabotage fin a lieu jusu'au-delà de la moitié de l'épaisseur (d) de la pièce à usiner (2, 2.2).
  3. Procédé selon la revendication 1 ou 2, caractérisé par le fait que la première étape du rabotage fin a lieu sur au moins la moitié de la distance (a) et que la seconde étape du rabotage fin a lieu sur toute la distance (a).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait qu'il est effectué un rabotage fin à plusieurs reprises dans l'une ou l'autre direction dans ou à l'encontre de la direction d'estampage ou de découpage.
EP98947492A 1997-09-04 1998-09-01 Procede pour realiser des surfaces de coupe exactes Expired - Lifetime EP1007241B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19738635A DE19738635C2 (de) 1997-09-04 1997-09-04 Verfahren zum Herstellen von exakten Schnittflächen
DE19738635 1997-09-04
PCT/EP1998/005533 WO1999011400A1 (fr) 1997-09-04 1998-09-01 Procede pour realiser des surfaces de coupe exactes

Publications (2)

Publication Number Publication Date
EP1007241A1 EP1007241A1 (fr) 2000-06-14
EP1007241B1 true EP1007241B1 (fr) 2003-08-13

Family

ID=7841155

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98947492A Expired - Lifetime EP1007241B1 (fr) 1997-09-04 1998-09-01 Procede pour realiser des surfaces de coupe exactes

Country Status (9)

Country Link
US (1) US6125527A (fr)
EP (1) EP1007241B1 (fr)
JP (1) JPH1177182A (fr)
CN (1) CN1089649C (fr)
AT (1) ATE246972T1 (fr)
CA (1) CA2302776C (fr)
DE (2) DE19738635C2 (fr)
ES (1) ES2202896T3 (fr)
WO (1) WO1999011400A1 (fr)

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ITPD20020274A1 (it) * 2002-10-22 2004-04-23 Pegasus Srl Metodo per la lavorazione di tranciatura di particolari metallici.
CN100382912C (zh) * 2004-03-26 2008-04-23 鸿富锦精密工业（深圳）有限公司 板金冲裁工艺
DE502006002645D1 (de) * 2006-02-03 2009-03-05 Feintool Ip Ag Verfahren und Werkzeug zum Feinschneiden von Werkstücken mit kleinen Eckenradien und massiv reduziertem Einzug in einer einstufigen Anordnung
CN101259504A (zh) * 2007-03-07 2008-09-10 鸿富锦精密工业（深圳）有限公司 冲压模具、冲压成型方法及该冲压成型方法形成的产品
DK2042249T3 (da) * 2007-09-26 2010-06-21 Feintool Ip Ag Fremgangsmåde og indretning til fremstilling af stanseemner med næsten glat og forstørret funktionel overflade
DE102009001305B4 (de) 2009-03-03 2017-08-17 Aweba Werkzeugbau Gmbh Aue Verfahren zur Herstellung eines Profils an einem Blechteil, Vorrichtung zur Durchführung des Verfahrens sowie Blechteil, herstellbar nach dem Verfahren
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
DE102010028280B4 (de) 2010-04-28 2020-11-12 Zf Friedrichshafen Ag Verfahren zur Herstellung von Stanzteilen sowie Vorrichtung und Verwendung
US20140020534A1 (en) * 2012-07-17 2014-01-23 National Taiwan Ocean University Fine hydro-blanking device
JP6100546B2 (ja) * 2013-02-07 2017-03-22 シロキ工業株式会社 剪断打ち抜き加工方法及び剪断打ち抜き加工装置
JP6100547B2 (ja) * 2013-02-07 2017-03-22 シロキ工業株式会社 ギヤ
CN105291180B (zh) * 2014-07-08 2019-05-17 山东赢耐鑫电子科技有限公司 双向多孔钻眼机
US10625325B2 (en) * 2014-12-10 2020-04-21 Nippon Steel Corporation Blank, formed article, die assembly, and method for producing blank
CN205651431U (zh) * 2014-12-24 2016-10-19 深圳兴科生物科技有限公司 一种水果自动打孔机
CN106142211A (zh) * 2015-03-13 2016-11-23 联晟泰自动化科技(苏州)有限公司 一种胶片补强材料贴附设备
CN106142214A (zh) * 2015-03-13 2016-11-23 联晟泰自动化科技(苏州)有限公司 一种胶纸自动贴合设备
CN105058489A (zh) * 2015-08-20 2015-11-18 汪红芳 一种打孔机
CN105364989A (zh) * 2015-12-16 2016-03-02 苏州太湖国家旅游度假区希成五金加工厂 一种使用方便的打孔器
CN105729569A (zh) * 2016-03-23 2016-07-06 哈尔滨飞机工业集团有限责任公司 一种复合材料层压板的钻孔方法
CN105729574B (zh) * 2016-04-19 2017-11-21 山东新华医疗器械股份有限公司 塑料瓶集成式自动冲裁机
CN105965603A (zh) * 2016-04-22 2016-09-28 许世璋 一种可排废的刀模模具
CN105835121B (zh) * 2016-05-30 2017-07-07 福建盈浩工艺制品有限公司 包装盒模切机
CN105904510A (zh) * 2016-05-31 2016-08-31 苏州卓诚钛设备有限公司 一种塑料棒材侧壁打孔装置
CN105904514B (zh) * 2016-06-12 2018-01-02 广东新瑞洲数控技术有限公司 一种用于柔性材料切割的冲切机头及其控制方法
CN105904511A (zh) * 2016-06-22 2016-08-31 无锡市东特机械科技有限公司 一种密封件打孔装置的固定部件
CN106346553B (zh) * 2016-08-11 2018-06-19 李钦源 一种制鞋用快速穿孔装置
CN106142221B (zh) * 2016-08-25 2017-10-03 坂崎雕刻模具（昆山）有限公司 一种刀辊装置
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CN106965247A (zh) * 2017-05-15 2017-07-21 苏州盛达织带有限公司 一种便捷式织带打孔机
EP3409392B1 (fr) * 2017-05-30 2022-12-28 Feintool International Holding AG Procédé de fabrication de pièces estampées
CN107225615A (zh) * 2017-06-21 2017-10-03 滁州佳诚模具制造有限公司 用于冰箱冷藏箱冲孔用装置
CN107097291B (zh) * 2017-07-01 2018-12-18 重庆润民纸业有限公司 一种纸张打孔模具用冲孔刀
CN107322689A (zh) * 2017-07-24 2017-11-07 南京理工大学紫金学院 汽车零部件切割器

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Also Published As

Publication number Publication date
ATE246972T1 (de) 2003-08-15
ES2202896T3 (es) 2004-04-01
DE19738635C2 (de) 2002-09-26
CN1089649C (zh) 2002-08-28
CN1278196A (zh) 2000-12-27
DE19738635A1 (de) 1999-03-18
WO1999011400A1 (fr) 1999-03-11
CA2302776A1 (fr) 1999-03-11
DE59809291D1 (de) 2003-09-18
US6125527A (en) 2000-10-03
JPH1177182A (ja) 1999-03-23
EP1007241A1 (fr) 2000-06-14
CA2302776C (fr) 2006-11-14

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