EP2842653B1 - Werkzeug und Verfahren zum Herstellen von Stanzteilen - Google Patents

Werkzeug und Verfahren zum Herstellen von Stanzteilen Download PDF

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Publication number
EP2842653B1
EP2842653B1 EP13004190.8A EP13004190A EP2842653B1 EP 2842653 B1 EP2842653 B1 EP 2842653B1 EP 13004190 A EP13004190 A EP 13004190A EP 2842653 B1 EP2842653 B1 EP 2842653B1
Authority
EP
European Patent Office
Prior art keywords
embossing
tool according
bell
die part
blank
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.)
Active
Application number
EP13004190.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2842653A1 (de
Inventor
Andreas Marti
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
Priority to EP13004190.8A priority Critical patent/EP2842653B1/de
Priority to JP2014169069A priority patent/JP6472190B2/ja
Priority to US14/467,483 priority patent/US9669448B2/en
Priority to KR1020140111663A priority patent/KR102226591B1/ko
Priority to CN201410431402.7A priority patent/CN104416056B/zh
Publication of EP2842653A1 publication Critical patent/EP2842653A1/de
Application granted granted Critical
Publication of EP2842653B1 publication Critical patent/EP2842653B1/de
Active 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
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
    • 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
    • B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
    • B21D13/02—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by pressing
    • 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
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • 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
    • 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
    • B21D35/001—Shaping combined with punching, e.g. stamping and 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
    • B21D53/00—Making other particular articles
    • B21D53/26—Making other particular articles wheels or the like
    • B21D53/28—Making other particular articles wheels or the like gear wheels

Definitions

  • the invention relates to a tool for producing stamped parts, in particular slats, with an upper part and a lower part, which at least one punching or fine blanking stage for cutting the inner and outer contour of a lamella blank and at least one corrugation and embossing stage for waves of the lamella blank and embossing form the burrs formed during cutting on the lamella blank, wherein the corrugation and embossing stage is divided into a die base and a die shell.
  • the invention further relates to a method for producing stamped parts, in particular slats, in which the outer and inner contour of a slat blank in a first method step from a strip of tape within a tool comprising a top and bottom part in cut a punching or fineblanking, the finely cut lamellar blank is moved by a cross slide after opening the tool in a corrugation and embossing stage in which the lamella blank receives after closing the tool in a second process step by forming on a die top and a die base a wave profile and the burrs produced during fineblanking are embossed on the lamella, wherein the first and the second method step are carried out in one stroke.
  • a method and an apparatus for producing corrugated fins in two process steps wherein a workpiece is punched or finely cut in the first process step, transported between the first and the second process step and corrugated in the second process step and simultaneously deburred.
  • the process is carried out with a two-stage tool whose first stage is designed as a fineblanking stage and the second stage as embossing and corrugation stage.
  • fineblanking typically creates a feeder, which increases in particular with decreasing corner radius and increasing sheet thickness.
  • the insertion depth can be approx. 20% and the feed width about 30% of the sheet thickness or more (see DIN 3345, fineblanking, Aug.
  • the present invention seeks to provide a tool and a method for producing corrugated fins, with which it It is possible to increase the dimensional accuracy and sharpness of the external teeth of the corrugated fins while reducing costs.
  • the solution according to the invention is based on the knowledge that the waves do not run simultaneously with respect to the embossing of the cutting burr, but with a time lead in order to fix and not influence the outer and inner contours of the blade during the corrugation in order to ensure the dimensional and dimensional accuracy.
  • the upper die part comprises an embossing bell, a scraper ring provided with an embossing surface with a wave profile on the embossing surface and an inner mold embossing (as well as the die lower part a Subgeambos with a wave profile on its embossing surface, wherein the embossing bell and the inner mold embossing each with an embossing shoulder are provided, which are arranged opposite to the wave profile of the scraper ring in the stroke direction so that they can detect the burrs after the waves, so that the waves leading the ridge embossing and the outer and inner contour of the lamella not their position, but their shape on the ridge side after which waves can change.
  • the embossing bell for fixing the outer contour of the lamellar blank is annular and the outer contour completely encloses, and that the inner mold embossing is arranged supportingly against the inner contour.
  • the outer and inner contour are thus fixed as clamped, so that the outer and inner contour of the slat blank can not be influenced by the forming operation.
  • the scraper ring is vertically supported on the inner wall of the embossing bell and on the outer wall of the mecanical spagers, so that the embossing surface of the scraper ring is guided in a defined position to the slat blank safely.
  • the embossing bell on its inner wall on a profiling, which is adapted to the profile, in particular toothing of the outer contour of the fin blank.
  • a profiling which is adapted to the profile, in particular toothing of the outer contour of the fin blank.
  • the stamping ammunition in the lower die part is annular and assigned to the scraper ring in the die upper part, wherein a filler for the power transmission and support is arranged in the interior of the stamping team.
  • the embossing shoulder is arranged on the inner wall of the embossing bell and the embossing shoulder of the mecanical plaitis on the outer wall, the embossing shoulders have a position and shape, the size and shape of the Thomasgrates, the thickness of the lamella blanks and the corrugation profile of the embossing surfaces of the wiper ring and Thageambos is tuned. This ensures that the waves can lead the ridge embossing on the ridge side of the lamella blank.
  • the lower die part further comprises a vertically guided in a Matrizenein stamped, adapted to the embossing bell intermediate ring whose annular surface forms a seat for the embossing bell in the closed state of Gesenkoberteil and die lower part and the inner wall is adapted to the finely cut outer contour of the fin blank.
  • the slat blank is thus exactly in a defined position between the embossing surfaces of the scraper ring and procurgeambos, the outer and inner contour are fixed by the embossing bell and the inner mold embossing.
  • the scraper ring, embossing team, embossing bell and internal form embossing machine form the die in which the forming operations take place.
  • the embossing bell is operatively connected via an upper pressure plate and the inner mold embosser via a further pressure plate with a fixed upper block of the upper part for performing all operations.
  • the upper block can of course also be carried out liftable.
  • the lower block is formed correspondingly stationary.
  • the scraper ring which at the same time performs a forming function in a further advantageous embodiment of the invention, is operatively connected via a pressure pin and an upper ring plate with an auxiliary hydraulic for stripping the finished formed lamella.
  • the embossing surfaces of the embossing and Abstreifrings coordinated with each different embossing profiles, such as a wave profile with uniformly shaped wave crests and troughs, or an irregular wave profile of at least two waves with differently shaped and spaced wave crests and wave troughs, so that slats with different corrugations can be produced.
  • the object is further achieved by a method that takes place within the corrugation and embossing stage at the same time with the waves of the lamella blank fixing the outer and inner contour to maintain their position and shape during the wave, the waves leading the ridge embossing and the outer and inner contour of the slat not their location, but can change their shape on the ridge side by the subsequent embossing.
  • the upper and lower sides of the slat blank are corrugated by an embossing boss belonging to the lower part of the die and a scraper ring belonging to the upper part of the die, thus perceiving both a forming function and a scraper function for the corrugated fin.
  • the method according to the invention can be used as embossing surfaces for anvil and scraper different embossed profiles, such as a wave profile with uniformly shaped wave crests and troughs, or an irregular wave profile of at least two waves with differently shaped and spaced wave crests and troughs used, so that the inventive Method can be variably adapted to different waveforms and fin dimensions.
  • the Fig. 1a and 1b shows a commercially available corrugated outer shell 1, which has an outer contour 2 with a Has toothing 3 and a circular inner contour 4, wherein the outer plate 1 is provided with a corrugation 5 (see Fig. 1b ).
  • the outer plate 1 has, for example, a thickness D of 1.8 mm and is made of steel.
  • the outer disk 1 is to be produced with a fine cutting tool 6, which comprises an upper part 7 and a lower part 8, which, like Fig. 2 and 3 show at least one fine cutting stage 9 and at least one corrugation and embossing stage 10 form.
  • the upper part 7 is fixed with its upper block 11 fixed to a machine table, not shown, and the lower part 8 with its lower block 12 hubbeweglich on a plunger of a press, so that the lamella blank 13 from bottom to top -that in the direction of top part of a Strip strip 14 is finely cut in the fine cutting stage 9, which corresponds to the known prior art and therefore need not be explained in more detail.
  • the burrs 15 on the slat blank 13 protrude at the foundedachir 2 and the inner contour 3 of the slat blank 13 perpendicular to (see also Fig. 14c ).
  • the finely cut lamellar blank 13 is detected after ejection from the fine cutting stage 9 by a cross slide 16, transported with this in the corrugation and embossing stage 10 and stored there in precise position before the waves.
  • the Fig. 3 shows the basic structure of the embossing and wave stage 10 in the closed state.
  • the embossing and wave stage 10 has a Gesenkoberteil 17 and Die lower part 18.
  • To Gesenkoberteil 17 include an annular embossing bell 19, an annular scraper ring 20 and an inner mold embossment 21.
  • the embossing bell 19 is fixedly secured to an upper embossing plate 22, which in turn is fixed to the upper block 11.
  • the scraper ring 20 is supported on the inner wall 23 of the embossing bell 19 vertically and on the upper embossing pressure plate 22 horizontally, wherein the scraper ring 20 on its the embossing plate 22 side facing 24 via an actuatable by an upper auxiliary hydraulic 25 and a ring plate 26 pressure pin 27 is a vertical Can perform relative movement relative to the stamping bell 19.
  • pressure pin 27 is a vertical Can perform relative movement relative to the stamping bell 19.
  • the annular scraper ring 20 of the inner mold embossment 21 is inserted, which guides the scraper ring 20 vertically on its outer wall 28 and supported.
  • On the inner mold embossment 21 is arranged in the annular scraper ring 20 separate pressure plate 29, which is operatively connected to the power transmission with the embossing pressure plate 22.
  • the die bottom 18 is formed by an annular die enclosure 30, an intermediate ring 31, an annular die 32 and a filler 33.
  • the die skirt 30 is attached to the lower block 12.
  • the intermediate ring 31, the procurgeambos 32 and the filling piece 33 rest on a lower embossing pressure plate 34, which in turn is connected via a lower auxiliary hydraulic 35 in operative connection.
  • Fig. 4 is shown enlarged form the embossing bell 19, the wiper ring 20 and the Inner shaped embossment 21 of the die upper part 17 with the intermediate ring 31, the embossing team 32 and the filling piece 33 of the die lower part 18 each active pairs with respect to the slat blank thirteenth
  • the lamellar blank 13 is enclosed on its outer contour 2 of the stamping bell 19 and on its inner contour 4 of mecanicumformlessnessg 21, so that during the shaft of the lamellar blank 13 between the scraper ring 20 and 30 refgeambos no distortion on the lamella blank 13 can be adjusted.
  • the Fig. 5 to 10 illustrate the structure of the Gesenkoberteils 17th It can clearly be seen that the inner wall 23 of the embossing bell 19 and the outer wall 36a of the scraper ring 20 are matched to one another and together have a contour K which corresponds to the outer contour 2 of the slat blank 13. In the annular scraper ring 20 of the inner mold embossment 21 is arranged vertically guided.
  • the Fig. 6 and 7 represent a perspective view of the embossing bell 19 and a section along the line AA of Fig.
  • the stamping bell 19 has on its formed by the lower seat surface 36 and the inner wall 23 centering edge 37 an embossing shoulder 38, the depth T on the size and shape of the towering ridge on the outer contour 2, the thickness D of the outer plate 1 and the height h the wave crest of the wave profiles is tuned.
  • the scraper ring 2 is shown, which faces a wave profile 39 on its embossing team 32 Embossed surface 40 has. This wave profile 39 is tuned to the desired curl of the outer plate 1.
  • the inner form embossment 21 has a cylindrical shape and is adapted in its contour to the inner contour 4 of the lamella blank 13 (see Fig. 9 ).
  • Fig. 9 One recognizes Fig.
  • the inner form embossment 21 has an embossing shoulder 42 whose depth t corresponds to the dimension and shape of the ridge 15, the thickness D of the outer lamella 1 and the height h of the Wave profile is tuned.
  • the die lower part 18 is in Fig. 11 shown without matrix border.
  • the inner wall 43 of the intermediate ring 31 and the outer wall 44 of the embossing team 32 have a coordinated contour K which corresponds to the outer contour 3 of the lamella blank 13.
  • the stamping team 32 has - like Fig. 12 shows on its embossing surface 45, a wave profile 46, which is adapted to the desired curl of the outer plate 1.
  • Examples of wave profiles 39 and 46 on the scraper ring 20 and Regeambos 32 are as settlement in the Fig. 13a to 13c according to section line CC of Fig. 11 shown.
  • evenly or unevenly distributed corrugations such as 3-fold waves, 4-fold waves or 2 + 2-fold waves can be provided on the circumference of the slat blank 13.
  • Fig. 14a has the Cross slide 16 the slat blank 13 placed on the procurgeambos 32. Due to the centering edge 37 of the embossing bell 19, a centering on the outer contour 2 of the lamella blank 13 and the centering 41 centering on the inner contour 4, so that the lamella blank 13 is positioned exactly on the procurgeambos 19 for the clamping state (see Fig. 14b ).
  • the Fig. 14c shows the state in which the wave profile 39 of the embossing surface 40 of the scraper ring 20 with its crests 47 has reached the lamellar blank 13 by the lifting movement of the embossing team 32.
  • the wave forming process on the lamellar blank sets in and is completed before the embossing shoulder 38 or 42 of the embossing bell 19 and the mecanicform Georgiagers 21 can grasp the cutting ridge 15 on the outer contour 2 and inner contour 4.
  • the embossing process is completed Fig. 14d has the wiper ring 20, the corrugated and ridge embossed outer plate 1 stripped by the upper auxiliary hydraulic 25 of the embossing shoulders 38 and 42.
  • the outer disk 1 can be transported by opening the tool by means of the cross slide 16 on the tool.
EP13004190.8A 2013-08-28 2013-08-28 Werkzeug und Verfahren zum Herstellen von Stanzteilen Active EP2842653B1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP13004190.8A EP2842653B1 (de) 2013-08-28 2013-08-28 Werkzeug und Verfahren zum Herstellen von Stanzteilen
JP2014169069A JP6472190B2 (ja) 2013-08-28 2014-08-22 工具及び打抜き部材の製造のための方法
US14/467,483 US9669448B2 (en) 2013-08-28 2014-08-25 Tool and method for producing stamped parts
KR1020140111663A KR102226591B1 (ko) 2013-08-28 2014-08-26 스탬핑된 부품을 제조하기 위한 도구와 방법
CN201410431402.7A CN104416056B (zh) 2013-08-28 2014-08-28 用于制造冲压件的模具和方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13004190.8A EP2842653B1 (de) 2013-08-28 2013-08-28 Werkzeug und Verfahren zum Herstellen von Stanzteilen

Publications (2)

Publication Number Publication Date
EP2842653A1 EP2842653A1 (de) 2015-03-04
EP2842653B1 true EP2842653B1 (de) 2016-05-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13004190.8A Active EP2842653B1 (de) 2013-08-28 2013-08-28 Werkzeug und Verfahren zum Herstellen von Stanzteilen

Country Status (5)

Country Link
US (1) US9669448B2 (zh)
EP (1) EP2842653B1 (zh)
JP (1) JP6472190B2 (zh)
KR (1) KR102226591B1 (zh)
CN (1) CN104416056B (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328024A (zh) * 2015-11-11 2016-02-17 无为县鑫发盛汽车零部件有限公司 一种汽车板件的冲压模具
CN106424261B (zh) * 2016-11-30 2018-01-23 燕山大学 一种板材环波反复拉延强变形模具及工艺
JP6531265B2 (ja) * 2017-03-27 2019-06-19 石崎プレス工業株式会社 金属部品の製造方法および金属部品の製造装置
CN111374724B (zh) * 2018-12-29 2021-09-07 江苏风和医疗器材股份有限公司 一种缝合钉成型件的制备工艺
CN109909360A (zh) * 2019-03-22 2019-06-21 东莞市瑞辉机械制造有限公司 一种具有弧状刃部的刀具
CN112893602A (zh) * 2021-02-01 2021-06-04 南昌航空大学 一种单波形环零部件的冲压成形模具

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US4267753A (en) * 1979-11-08 1981-05-19 Bennett Edward D Apparatus for producing a blank from stock material
US5794484A (en) * 1993-11-23 1998-08-18 Ford Global Technologies, Inc. Universally making waved parts
US5492001A (en) * 1994-01-18 1996-02-20 Kabushiki Kaisha Yutaka Giken Method and apparatus for working burred portion of workpiece
DE19608551A1 (de) * 1996-03-06 1997-09-11 Zahnradfabrik Friedrichshafen Verfahren und Vorrichtung zur Herstellung von Stanzteilen
JP4271332B2 (ja) * 2000-02-22 2009-06-03 本田技研工業株式会社 摩擦係合装置用ウェーブディスクの製造方法
JP3524503B2 (ja) * 2000-02-28 2004-05-10 本田技研工業株式会社 摩擦係合装置用ウェーブディスクの製造方法
JP3418180B2 (ja) * 2001-01-10 2003-06-16 株式会社飯塚製作所 リングギアの製造方法
JP3970203B2 (ja) * 2002-09-17 2007-09-05 アイシン化工株式会社 湿式摩擦材の芯金のウエーブ加工金型
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JP2006142363A (ja) * 2004-11-24 2006-06-08 Nhk Spring Co Ltd ブレーキディスクの製造方法
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DE102010028280B4 (de) * 2010-04-28 2020-11-12 Zf Friedrichshafen Ag Verfahren zur Herstellung von Stanzteilen sowie Vorrichtung und Verwendung
CN202087671U (zh) * 2011-01-26 2011-12-28 成都万荣科技有限责任公司 一种简易精冲模
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Also Published As

Publication number Publication date
KR20150026890A (ko) 2015-03-11
US20150101385A1 (en) 2015-04-16
JP6472190B2 (ja) 2019-02-20
JP2015044237A (ja) 2015-03-12
CN104416056B (zh) 2018-03-16
CN104416056A (zh) 2015-03-18
EP2842653A1 (de) 2015-03-04
KR102226591B1 (ko) 2021-03-11
US9669448B2 (en) 2017-06-06

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