EP1007241A1 - Verfahren zum herstellen von exakten schnittflächen - Google Patents
Verfahren zum herstellen von exakten schnittflächenInfo
- Publication number
- EP1007241A1 EP1007241A1 EP98947492A EP98947492A EP1007241A1 EP 1007241 A1 EP1007241 A1 EP 1007241A1 EP 98947492 A EP98947492 A EP 98947492A EP 98947492 A EP98947492 A EP 98947492A EP 1007241 A1 EP1007241 A1 EP 1007241A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- scraping
- cutting
- contour
- punching
- 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
Links
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 cut surfaces on a workpiece by punching or cutting, in particular by fine cutting, first punching out or cutting out a contour at a distance from the actual contour of the workpiece and then re-scraping up to the contour of the workpiece he follows.
- the description essentially relates to the so-called fineblanking
- the invention is also intended to encompass a normal punching process in which the method according to the invention can be used.
- fineblanking can produce parts with an almost 100% smooth cut surface. Due to the process, an edge indentation also occurs on the part cutting surface facing the cutting plate and a burr opposite the edge indentation during fine cutting. This edge indentation or ridge Is mainly dependent on the geometric part shape, but also on the material and part thickness. A protruding corner is much larger than a protruding corner. In addition to the smooth cut surface, the greatest advantage of the part manufactured using the fineblanking process is that the surface of the part cut surface is heated up.
- Functional area includes that the component can be subjected to higher loads or that, with the prescribed load height, it can be switched to thinner sheet thicknesses.
- CH 665 367 A2 for example, a re-cutting process is described in which the re-cutting takes place in the cutting direction or opposite to the cutting direction of the preliminary stage of the fine cutting process.
- the present invention has for its object to develop a method of the type mentioned above, in which the disadvantage of the chips remaining in the tool does not occur.
- the solution to this problem is that in a first stage, the scraping is carried out only up to a part of the thickness of the workpiece, and in a subsequent stage the contour of the workpiece is achieved by scraping.
- the main advantage of this process is that the chip remains on the strip of material and is removed from the tool or the press with this strip of material, i.e. lead frame.
- the chip does not come loose from the lead frame, which means that no loose chip remains in the tool.
- Another significant advantage is that, on the one hand, the indentation created by fineblanking is replenished in the last stage of re-scraping, which is opposite to the direction of fineblanking, and at the same time only a small indentation by re-scraping compared to the indentation created by fineblanking arises. The burr is also completely removed.
- the first stage of re-scraping is preferably carried out up to more than half the thickness of the workpiece. This results in a favorable force distribution, since half of the material to be re-shaved is already converted into a chip in the second stage of re-shaving.
- the first stage of re-scraping should also be at least half the distance between a ratchet tooth hole and the actual desired contour of the Tooth. The entire distance is then removed in the second stage.
- the scraping is carried out in several stages in or opposite to the cutting or punching direction. This mainly depends on the material used for the workpiece.
- Figure 1 is a perspective view of a fine and scraped pawl
- Figure 2 is a schematic representation of a fineblanking process
- FIG. 3 shows an enlarged section from FIG. 2
- Figure 4 is a schematic representation of the fineblanking process in another exemplary embodiment
- FIG. 5 shows an enlarged section from FIG. 4
- FIG. 6 shows a schematic illustration of a resharpening process on the finely cut tooth of the pawl according to FIG. 1;
- FIG. 7 shows a schematic illustration of the re-scraping process according to the invention. 6 in side view;
- FIG. 8 shows a schematic illustration of a resupply process corresponding to FIG. 6 in a further exemplary embodiment
- Figure 9 is a schematic representation of the re-shuffling process according to Figure 8 in side view.
- FIG. 1 shows a finely cut pawl 1, the tooth 2 of which has been additionally cut or scraped.
- the scraping of an already cut shape also refers to the inner shapes and outer shapes of an in closed cutting line contour and is not only limited to tooth areas as shown in Figure 1.
- the tooth contours are provided with sharp edges 3, the tooth cut surfaces 4.1 and 4.2 being rectangular, free of edges and free of burrs.
- a notch 8 is pressed in by means of a ring spike 7.
- the ring spike 7 can either be formed on a guide plate 9 or a cutting plate 10 or both a guide plate 9 and a cutting plate 10 (not shown) of the fineblanking tool.
- the application of the ring serrations 7.1 and 7.2 reduces the edge indentation on the cut surface of the finely cut part 1.
- the edge indentation is significantly reduced by the latter measure, i.e. the attachment of the ring spikes 7.1 and 7.2 both on the guide plate 9 and on the cutting plate 10; however, this measure is complex for manufacturing and maintenance reasons.
- the draw-in width which can be seen in FIGS. 3 and 5 is designated c and the draw-in depth of the edge feed 11.1 is designated by d.
- FIGS. 6 and 7 schematically show the resharpening process on the cut surface 4.1 and 4.2 of the finely cut ratchet tooth 2.
- a pawl tooth hole 12 is formed in the material strip 5, which hole maintains a distance a from a contour 13 of the pawl tooth 2 indicated by dash-dotted lines.
- the edge feed 11 and the edge feed 11 are shown in FIG. 7 opposite ridge 14 recognizable.
- the Klmken leopardloch 12 is cut out in the cutting direction x.
- a scraping is now carried out in the area of the distance a between the contour 13 of the pawl tooth 2 and the first inner contour 15 of the pawl tooth hole 12. This is followed by a scraping by approximately half the distance a and approximately up to half the thickness d of Tooth 2. This creates a chip 16, which remains on tooth 2.
- a scraping takes place against the cutting direction x by the entire amount of the distance a, so that both the edge indentation 11 and the ridge 14 are now eliminated and an exact cutting surface 4 is created on the tooth 2.
- the chip 16.1 remains on the tool strip 5 and is removed from the corresponding tool with this material strip 5.
- FIGS. 8 and 9 show a further exemplary embodiment of a refill method according to the invention.
- a tooth .1 is punched out of a material strip 5.1, the first inner contour 15.1 maintaining the distance a from a desired, final contour 13.1.
- the punching direction is indicated by the arrow in FIG. 9.
- a first re-scraping takes place, in the opposite direction to the punching, so that the edge indentation 11 is compensated for and scraped material accumulates there as chip 16.2
- a re-scraping is carried out in the opposite direction to the punching direction by a further part of the distance a and in a last stage, a re-scraping is carried out in the opposite direction Punching direction, at the same time the finished tooth 2.2 is ejected downwards.
- the chip 16.3 sticks to the material strip 5.1 or the lead frame.
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)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19738635 | 1997-09-04 | ||
DE19738635A DE19738635C2 (de) | 1997-09-04 | 1997-09-04 | Verfahren zum Herstellen von exakten Schnittflächen |
PCT/EP1998/005533 WO1999011400A1 (de) | 1997-09-04 | 1998-09-01 | Verfahren zum herstellen von exakten schnittflächen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1007241A1 true EP1007241A1 (de) | 2000-06-14 |
EP1007241B1 EP1007241B1 (de) | 2003-08-13 |
Family
ID=7841155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98947492A Expired - Lifetime EP1007241B1 (de) | 1997-09-04 | 1998-09-01 | Verfahren zum herstellen von exakten schnittflächen |
Country Status (9)
Country | Link |
---|---|
US (1) | US6125527A (de) |
EP (1) | EP1007241B1 (de) |
JP (1) | JPH1177182A (de) |
CN (1) | CN1089649C (de) |
AT (1) | ATE246972T1 (de) |
CA (1) | CA2302776C (de) |
DE (2) | DE19738635C2 (de) |
ES (1) | ES2202896T3 (de) |
WO (1) | WO1999011400A1 (de) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3975715B2 (ja) * | 2001-10-10 | 2007-09-12 | トヨタ紡織株式会社 | プレス成形方法及びそれに用いる装置 |
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 |
EP1815922B1 (de) * | 2006-02-03 | 2009-01-14 | Feintool Intellectual Property 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 |
ES2341579T3 (es) * | 2007-09-26 | 2010-06-22 | Feintool Intellectual Property Ag | Procedimiento y dispositivo para fabricar piezas estampadas con superficie de corte muy lisa y superficie funcional aumentada. |
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 (de) * | 2010-02-10 | 2013-06-05 | Feintool Intellectual Property AG | Verfahren und Vorrichtung zum Beeinflussen der Schnitt- und Funktionsfläche an feingeschnittenen Fertigteilen |
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 |
CN107000025B (zh) * | 2014-12-10 | 2019-11-26 | 日本制铁株式会社 | 坯料、成形品、模具以及坯料的制造方法 |
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 |
CN106142215A (zh) * | 2016-08-25 | 2016-11-23 | 江苏创基新能源有限公司 | 隔离小条的开口装置 |
CN106363692B (zh) * | 2016-08-29 | 2018-07-20 | 芜湖银星汽车零部件有限公司 | 一种钻孔设备 |
CN106738044B (zh) * | 2016-11-29 | 2018-09-11 | 中融飞腾(北京)科技有限公司 | 一种卫星式圆压圆轮转模切装置 |
CN106671201B (zh) * | 2017-03-09 | 2018-05-25 | 荆门市希济太机械科技有限公司 | 一种改进型食品切割装置 |
CN106863459B (zh) * | 2017-03-09 | 2018-09-28 | 荆门市希济太机械科技有限公司 | 一种食品切割装置 |
CN106671189B (zh) * | 2017-03-09 | 2018-04-10 | 青岛科技大学 | 一种新型不定距打孔装置 |
CN106827049B (zh) * | 2017-03-09 | 2018-10-09 | 荆门市希济太机械科技有限公司 | 一种新型食品切割装置 |
CN106976126B (zh) * | 2017-03-20 | 2019-04-02 | 纪章生 | 一种冲床 |
CN106945122A (zh) * | 2017-05-03 | 2017-07-14 | 深圳市哈德胜精密科技股份有限公司 | 全智能伺服热压成型圆刀模切机 |
CN106985200A (zh) * | 2017-05-15 | 2017-07-28 | 苏州盛达织带有限公司 | 一种可连续加工的织带打孔机 |
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 |
CN106956319A (zh) * | 2017-05-15 | 2017-07-18 | 苏州盛达织带有限公司 | 一种带收集废料的织带打孔机 |
EP3409392B1 (de) * | 2017-05-30 | 2022-12-28 | Feintool International Holding AG | Verfahren zur herstellung von stanzteilen |
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 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1325194A (en) * | 1919-12-16 | of belleville | ||
BE758810A (fr) * | 1969-11-15 | 1971-04-16 | Kondo Kazuyoshi | Procede de cisaillement de precision |
US3739669A (en) * | 1970-05-29 | 1973-06-19 | Suzuki Motor Co | Shearing press of opposing die type |
IT972789B (it) * | 1972-12-22 | 1974-05-31 | Ibm Spa | Procedimento e dispositivi di tranciatura senza bave |
US4061507A (en) * | 1976-06-28 | 1977-12-06 | Richmond Industries, Inc. | Wrench and method of making the same |
JPS56134026A (en) * | 1980-03-25 | 1981-10-20 | Tsubakimoto Chain Co | Blanking method |
DE3324680A1 (de) * | 1983-07-08 | 1985-01-24 | DAKO-Werkzeugfabriken David Kotthaus GmbH & Co KG, 5630 Remscheid | Verfahren zum feinschneiden von werkstuecken und feinschneidwerkzeug zur ausuebung des verfahrens |
JPS60152324A (ja) * | 1984-01-20 | 1985-08-10 | Fujitsu Kiden Ltd | シエ−ビング加工方法 |
CH665367A5 (en) * | 1984-09-17 | 1988-05-13 | Feintool Ag | Eliminating material burr at edges of press-cut component - by at least one corrective cutting step on step-wise moving metal strip |
US4711115A (en) * | 1985-12-30 | 1987-12-08 | Aluminum Company Of America | Method for forming memory discs by forging |
DE3931320C1 (de) * | 1989-09-20 | 1991-08-08 | Feintool International Holding, Lyss, Ch | |
US5105696A (en) * | 1990-12-10 | 1992-04-21 | Jacobson Mfg. Co., Inc. | Method and apparatus for punching a cross hole |
US5320013A (en) * | 1991-06-20 | 1994-06-14 | Fuji Electric Co., Ltd. | Method of blanking metal foil on piezoelectric actuator operated press, and die sets for practicing the method |
US5263353A (en) * | 1992-06-29 | 1993-11-23 | The Whitaker Corporation | Punch and die apparatus for producing flat stamped contact devices having improved contact edge surfaces |
JPH09250599A (ja) * | 1996-03-18 | 1997-09-22 | Honda Motor Co Ltd | サイレントチェーン |
-
1997
- 1997-09-04 DE DE19738635A patent/DE19738635C2/de not_active Expired - Fee Related
- 1997-12-09 US US08/987,535 patent/US6125527A/en not_active Expired - Fee Related
- 1997-12-16 JP JP9346553A patent/JPH1177182A/ja active Pending
-
1998
- 1998-09-01 AT AT98947492T patent/ATE246972T1/de active
- 1998-09-01 DE DE59809291T patent/DE59809291D1/de not_active Expired - Lifetime
- 1998-09-01 EP EP98947492A patent/EP1007241B1/de not_active Expired - Lifetime
- 1998-09-01 CA CA002302776A patent/CA2302776C/en not_active Expired - Fee Related
- 1998-09-01 ES ES98947492T patent/ES2202896T3/es not_active Expired - Lifetime
- 1998-09-01 CN CN98810634A patent/CN1089649C/zh not_active Expired - Fee Related
- 1998-09-01 WO PCT/EP1998/005533 patent/WO1999011400A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9911400A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19738635A1 (de) | 1999-03-18 |
ES2202896T3 (es) | 2004-04-01 |
WO1999011400A1 (de) | 1999-03-11 |
CN1278196A (zh) | 2000-12-27 |
ATE246972T1 (de) | 2003-08-15 |
CA2302776A1 (en) | 1999-03-11 |
CN1089649C (zh) | 2002-08-28 |
EP1007241B1 (de) | 2003-08-13 |
DE19738635C2 (de) | 2002-09-26 |
CA2302776C (en) | 2006-11-14 |
JPH1177182A (ja) | 1999-03-23 |
DE59809291D1 (de) | 2003-09-18 |
US6125527A (en) | 2000-10-03 |
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