EP3243578B1 - Verfahren und pressenwerkzeug zur herstellung eines komplexen blechformteils mit hoher ziehtiefe - Google Patents
Verfahren und pressenwerkzeug zur herstellung eines komplexen blechformteils mit hoher ziehtiefe Download PDFInfo
- Publication number
- EP3243578B1 EP3243578B1 EP17000777.7A EP17000777A EP3243578B1 EP 3243578 B1 EP3243578 B1 EP 3243578B1 EP 17000777 A EP17000777 A EP 17000777A EP 3243578 B1 EP3243578 B1 EP 3243578B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- punch
- tool
- hold
- matrix
- inserts
- 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
Links
- 239000002184 metal Substances 0.000 title claims description 39
- 238000000034 method Methods 0.000 title claims description 15
- 239000000463 material Substances 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims 16
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
- 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
-
- 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
- B21D22/06—Stamping using rigid devices or tools having relatively-movable die parts
-
- 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
-
- 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
- B21D22/22—Deep-drawing with devices for holding the edge of the blanks
-
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/04—Blank holders; Mounting means therefor
-
- 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
- B21D24/00—Special deep-drawing arrangements in, or in connection with, presses
- B21D24/10—Devices controlling or operating blank holders independently, or in conjunction with dies
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
Definitions
- the invention relates to a method for producing a complex sheet metal part by forming a sheet metal by means of press-bound tool (press tool) and a press tool suitable for this purpose.
- Complex sheet metal parts in particular for use in body construction, differ from simple sheet metal parts (such as a cup or a tub) by a more complex design, typically different surface areas and especially other design features, for example. Design or styling edges and / or Stiffening edges with small radii, includes. Since the forming technology feasibility limits, the production of such complex sheet metal parts is sometimes extremely difficult and expensive. Particular problems exist when high draw depths are to be realized under series production conditions.
- US2012 / 137749 A1 describes a pressing tool and a pressing method with a movable game insert, which is elastically coupled to the component group of the hold-down.
- the present invention seeks to provide an improved method and an improved tool for producing a complex and in particular large-area (eg.> 0.5 m ⁇ 2) sheet metal part, with which Series production conditions with perfect part quality a high draw depth is achievable.
- large-area eg.> 0.5 m ⁇ 2
- the sheet metal part can be substantially finished, starting from a flat sheet-metal blank, so that no further forming operations, at least no forming operations that increase the drawing depth and / or substantially change the forming design, are required. In a press line thus the required drawing levels can be kept low or even reduced.
- the tool or press tool may also have stamp inserts, which are not actively, but passively pushed or pushed back in a conventional manner.
- a design edge is generated with a small radius.
- the complex sheet-metal shaped part which can be produced by the method according to the invention can therefore also have at least one distinctive design edge, despite the considerable draw depth. Its outer edge radius is preferably only a few millimeters. This design edge is trailing edge-free, since the method according to the invention prevents the sheet from moving relative to the punch insert during the drawing process.
- the press tool according to the invention is further designed so that between the hold-down and at least one of the punch inserts, preferably all punch inserts, a mechanical coupling (ie, a coupling by means of mechanics), through which the relevant punch insert or the respective punch inserts during displacement and in particular during downward movement of the hold-down (ie, during the forming or pulling operation as described above) is actively moved back, d. H. is moved or retracted into the stamp recess / s provided for this purpose.
- a mechanical coupling ie, a coupling by means of mechanics
- the punch inserts are arranged in the press tool, so that in all critical areas at the start of drawing a material storage (as explained above) can be done.
- At least one of the punch inserts is additionally spring-mounted, for example by means of a gas pressure spring.
- all punch inserts are additionally spring-mounted.
- the die may have at least one movable die insert, which is opposite to a punch insert, in particular for forming a design edge, and which is formed with a corresponding mating contour, so that the sheet between the punch insert and the Matrizentown embossed can be transformed.
- a Matrizenrus is arranged analogously to a punch insert in a Matrizenaus brieflyung and preferably also resiliently mounted, for example. By gas spring.
- the press tool 100 has a tool lower part 110 and a tool upper part 120.
- the press tool 100 is a deep-drawing tool, which is installed in a press, not shown, wherein the lower tool part 110 is arranged on the press table and the upper tool part 120 is fixed to the press ram.
- the tool top 120 performs a downward stroke or stroke with a substantially continuous downward movement.
- the lower tool part 110 has a punch 130, a lower or sheet holder 140 surrounding the punch 130 and displaceable downwards, and a plurality of movable punch inserts 131, 132 and 133.
- the punch inserts 131, 132 and 133 are in punch recesses arranged.
- the punch insert 131 is for line contact and the punch inserts 132 and 133 are formed for point contact.
- the upper tool part 120 has a die 150, a die ring or counterholder 160 surrounding the die 150, and a movable die insert 151.
- the tool 100 is designed for a drawing depth of at least 200 mm. The following describes the drawing process.
- a sheet M in the form of a flat sheet metal blank is inserted and the tool 100 is closed by moving down the press ram or the tool upper part 120.
- the metal sheet M is clamped in its edge region between the opposite of the die 150 leading die ring 160 and the hold-140, as in Fig. 1a shown.
- the punch inserts 131, 132 and 133 are in extended positions or starting positions, in which they protrude beyond the stamp surface or surface.
- the Matrizenring 160 Upon further downward stroke of the upper tool 120, the Matrizenring 160 displaces the hold-down 140 down. D. h., The hold-down 140 is moved together with the die ring 160 downwards and thereby moves relative to the stationary punch 130. (The hold-down 140 can in a conventional manner by a press or tool 100 belonging to the die cushion or supported by the same, as illustrated with the illustrated springs.) In this case, the sheet M is pulled over the extended punch inserts 131, 132 and 133, whereby in the sheet M local Switzerland nursevraatache be generated. This is in Fig. 1b shown.
- the punch inserts 131, 132 and 133 are, for example, spring-mounted by means of gas springs, as with the springs shown illustrated, so that they press with a defined force against the sheet metal M.
- the middle punch insert 131 and the opposing die insert 151 a design edge with a small radius is formed in the sheet M, for which purpose the punch insert 131 and the die insert 151 are formed with corresponding forming sections.
- the die insert 151 is, for example, spring-mounted by means of a gas spring, as illustrated by the symbolically illustrated spring.
- the die ring 160 and hold-down 140 are eventually moved to their bottom dead center, as in FIG Fig. 1c shown.
- the punch inserts 131, 132 and 133 are actively, ie not moved back by displacement, whereupon the sheet M in the region of the punch inserts 131, 132 and 133 can successively create the punch surface or effective surface of the punch 130. In this way, therefore, a controlled stamp contact.
- the local material stocks are released for further forming.
- the metal sheet M is already formed in a covering area between the die ring 160 and the punch 130, for which purpose the die ring 160 and the punch 130 are formed with corresponding effective surface portions.
- the moving back or retraction of the punch inserts 131, 132 and 133 is effected by a mechanical positive coupling with the hold-down 140.
- the punch inserts 131, 132 and 133 for example, attached to a frame or a support plate 180, the or when moving down the hold-down 140 from a certain hold-down position (or from a defined Ziehwegposition) arranged by means of hold-down 140 Carrier 190 taken along or moved.
- the frame 180 is resiliently supported on the base plate (not shown) associated with the tool base 110, as illustrated with the illustrated springs.
- the punch inserts 131, 132 and 133 When the hold down 140 has reached its bottom dead center (see Fig. 1c ) are also the punch inserts 131, 132 and 133 in their retracted end positions. Depending on the objective, provision may be made for the punch insert end faces to lie behind the stamp surface (as in FIG Fig. 1c shown), finish flush with the stamp surface or still protrude over the stamp surface.
- the return movements and the end positions of the punch inserts 131, 132 and 133 are individually interpretable, so that asynchronous punch insert movements are possible. Notwithstanding the shown vertical directions of movement of the punch inserts 131, 132 and 133 and oblique directions of movement are possible, for example. By using slides.
- the trailing die 150 is now moved to its lower dead center, wherein the sheet metal M or the sheet metal shaped part is still finished in the middle region (in the outer region, the forming is already completed). That is, the die ring 160 first reaches its bottom dead center, then the die 150 continues to run to its bottom dead center, thereby forming the center region.
- Fig. 1d shows the final state in which the hold-down 140, the die ring 160 and the die 150 are in their lowerfoldsstot Vietnameseen.
- the sheet or sheet metal workpiece M is fully formed.
- the sheet metal part can be removed.
- the tool parts move into the in Fig. 1a shown starting positions or positions, so that the next sheet M can be inserted and transformed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016005902.8A DE102016005902B3 (de) | 2016-05-13 | 2016-05-13 | Verfahren und Pressenwerkzeug zur Herstellung eines komplexen Blechformteils mit hoher Ziehtiefe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3243578A2 EP3243578A2 (de) | 2017-11-15 |
EP3243578A3 EP3243578A3 (de) | 2017-11-22 |
EP3243578B1 true EP3243578B1 (de) | 2018-10-03 |
Family
ID=58672257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17000777.7A Active EP3243578B1 (de) | 2016-05-13 | 2017-05-05 | Verfahren und pressenwerkzeug zur herstellung eines komplexen blechformteils mit hoher ziehtiefe |
Country Status (5)
Country | Link |
---|---|
US (1) | US10646911B2 (ja) |
EP (1) | EP3243578B1 (ja) |
JP (1) | JP6370437B2 (ja) |
CN (1) | CN107363147B (ja) |
DE (1) | DE102016005902B3 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021100281B3 (de) | 2021-01-11 | 2022-05-05 | Audi Aktiengesellschaft | Umformwerkzeug sowie Verfahren zum Betreiben eines Umformwerkzeugs |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6721544B2 (ja) * | 2017-06-28 | 2020-07-15 | 株式会社神戸製鋼所 | プレス成形品の製造方法 |
CN108856513A (zh) * | 2018-07-08 | 2018-11-23 | 苏州华吉威自动化设备有限公司 | 一种折弯冲压模具 |
JP6670409B1 (ja) * | 2019-03-11 | 2020-03-18 | マレリ株式会社 | プレス装置及びプレス方法 |
JP7111063B2 (ja) * | 2019-06-04 | 2022-08-02 | Jfeスチール株式会社 | プレス成形装置 |
DE102020215585A1 (de) * | 2020-12-09 | 2022-06-09 | Volkswagen Aktiengesellschaft | Umformwerkzeug zur Tiefziehumformung einer Pouchfolie in eine Beutelhälfte eines Pouchbeutels |
FR3122589B1 (fr) * | 2021-05-06 | 2023-04-21 | Psa Automobiles Sa | Outil de presse à emboutir pour emboutir un flan de tôle et procédé d’emboutissage correspondant. |
CN118371583B (zh) * | 2024-06-21 | 2024-09-03 | 合肥工业大学 | 一种金属板电辅助冲压成形装置 |
Family Cites Families (24)
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JPS5731417A (en) * | 1980-08-05 | 1982-02-19 | Toyota Motor Corp | Deep drawing method |
DD160956A3 (de) * | 1981-01-14 | 1984-07-11 | Schwarzenberg Waschgeraete | Verfahren zur herstellung duennwandiger blechteile |
JPS6038622U (ja) * | 1983-08-25 | 1985-03-18 | トヨタ自動車株式会社 | 絞り型構造 |
JPH08206746A (ja) * | 1995-01-30 | 1996-08-13 | Isuzu Motors Ltd | 深絞り装置 |
US5600991A (en) * | 1995-02-10 | 1997-02-11 | Ogihara America Corporation | Stretch controlled forming mechanism and method for forming multiple gauge welded blanks |
US5941110A (en) * | 1997-05-12 | 1999-08-24 | Northern University | Adaptive method and apparatus for forming tailor welded blanks |
DE19842750B4 (de) * | 1998-09-18 | 2005-06-09 | Audi Ag | Verfahren und Herstellung von tiefgezogenen Hohlteilen und Ziehwerkzeug |
JP2007098443A (ja) * | 2005-10-05 | 2007-04-19 | Toyota Motor Corp | プレス成形方法及びプレス成形装置 |
DE102006005964B3 (de) * | 2006-02-08 | 2007-07-19 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines Struktur- oder Fahrwerkbauteils für Kraftfahrzeuge und Struktur- oder Fahrwerkbauteil |
JP2007268608A (ja) * | 2006-03-08 | 2007-10-18 | Kobe Steel Ltd | アルミニウム合金板のプレス成形方法およびプレス装置 |
JP2007326112A (ja) * | 2006-06-06 | 2007-12-20 | Hiroshima Pref Gov | プレス成形方法 |
WO2008047764A1 (fr) * | 2006-10-17 | 2008-04-24 | Honda Motor Co., Ltd. | Procédé et appareil de travail à la presse |
CN101164715B (zh) * | 2006-10-18 | 2010-08-11 | 宝山钢铁股份有限公司 | 一种诱发板料回弹的非对称拉伸成形模具 |
JP4922037B2 (ja) * | 2007-03-28 | 2012-04-25 | 株式会社神戸製鋼所 | アルミニウム合金板のプレス成形方法およびプレス成形装置 |
DE102007050580A1 (de) * | 2007-10-23 | 2009-04-30 | Gerd Reitter | Verfahren zum gezielten Beeinflussen des Blechdickenverlaufs und der Verfestigung einer Blechplatine |
CN101195142A (zh) | 2007-12-26 | 2008-06-11 | 陕西科技大学 | 一种金属板料拉深杯形件的模具及成型工艺 |
MX2011003594A (es) * | 2008-10-07 | 2011-04-27 | Nippon Steel Corp | Metodo y aparato para juzgar la fractura del producto estampado de metal, programa y medio de registro legible por computadora. |
JP2010167480A (ja) * | 2009-01-26 | 2010-08-05 | Honda Motor Co Ltd | プレス成形用金型及びプレス成形方法 |
JP5416498B2 (ja) * | 2009-07-23 | 2014-02-12 | 本田技研工業株式会社 | テーラードブランク板の成形方法及びその装置 |
DE102010045281A1 (de) * | 2010-08-31 | 2012-03-01 | Giw Gesellschaft Für Innovative Werkzeugsysteme Mbh | Verfahren und Vorrichtung zum Umformen eines Werkstücks |
KR20120062273A (ko) * | 2010-12-06 | 2012-06-14 | 현대자동차주식회사 | 프레스 장치 |
CN202224531U (zh) * | 2011-09-30 | 2012-05-23 | 联伟汽车零部件(重庆)有限公司 | 一种加工高张力材料零件的拉延模具 |
KR101850633B1 (ko) * | 2013-10-24 | 2018-04-19 | 신닛테츠스미킨 카부시키카이샤 | 모자형 단면 부품의 제조 장치 및 제조 방법 |
CN105013918A (zh) | 2015-07-02 | 2015-11-04 | 奇瑞汽车股份有限公司 | 复杂型面板材拉延模及其控制方法 |
-
2016
- 2016-05-13 DE DE102016005902.8A patent/DE102016005902B3/de not_active Expired - Fee Related
-
2017
- 2017-05-05 EP EP17000777.7A patent/EP3243578B1/de active Active
- 2017-05-12 US US15/593,758 patent/US10646911B2/en active Active
- 2017-05-12 CN CN201710332944.2A patent/CN107363147B/zh active Active
- 2017-05-15 JP JP2017096110A patent/JP6370437B2/ja active Active
Non-Patent Citations (1)
Title |
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None * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021100281B3 (de) | 2021-01-11 | 2022-05-05 | Audi Aktiengesellschaft | Umformwerkzeug sowie Verfahren zum Betreiben eines Umformwerkzeugs |
EP4026626A1 (de) | 2021-01-11 | 2022-07-13 | Audi AG | Umformwerkzeug sowie verfahren zum betreiben eines umformwerkzeugs |
Also Published As
Publication number | Publication date |
---|---|
CN107363147B (zh) | 2019-02-19 |
JP2017202525A (ja) | 2017-11-16 |
DE102016005902B3 (de) | 2017-06-29 |
US20170326612A1 (en) | 2017-11-16 |
CN107363147A (zh) | 2017-11-21 |
EP3243578A3 (de) | 2017-11-22 |
EP3243578A2 (de) | 2017-11-15 |
US10646911B2 (en) | 2020-05-12 |
JP6370437B2 (ja) | 2018-08-08 |
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