EP3157691A1 - Drehschieber mit kühlung und temperierten zonen - Google Patents
Drehschieber mit kühlung und temperierten zonenInfo
- Publication number
- EP3157691A1 EP3157691A1 EP15724660.4A EP15724660A EP3157691A1 EP 3157691 A1 EP3157691 A1 EP 3157691A1 EP 15724660 A EP15724660 A EP 15724660A EP 3157691 A1 EP3157691 A1 EP 3157691A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filling slide
- undercut
- tempering
- slide
- die
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- 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
- B21D19/08—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws
- B21D19/082—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for making negative angles
- B21D19/086—Flanging or other edge treatment, e.g. of tubes by single or successive action of pressing tools, e.g. vice jaws for making negative angles with rotary cams
Definitions
- the invention relates to a device for molding a
- Sheet metal part with a section which can be shaped separately as an undercut in the device comprising a press-side punch and a die and a forming tool which can be driven separately and which has an undercut contour
- This filling slide is used to form an undercut, which is described in the English written EP document with the expression of a "negative angle" relative to the top or outer surface of the formed sheet metal part.
- a plurality of separate filling slide are provided, each filling slide preferably in a in the above-described
- Wedge drive tool shows, for example, the American patent US 6,523,386 B2.
- an elastically supported Shaping arranged for global shaping of the sheet metal part, and on the other hand, a fixedly connected to the press ram slide, which acts via a slanted guide on the undercut - shaping serving as a working slide mold with the up and down movement of the press ram actuated, wherein the
- Support surfaces which are directly formed in the filling slide receptacle of the die require a high-quality material for the die, in order to minimize the wear, in particular of different hard abutment and support surfaces.
- a locking wedge for a locking hook is arranged on this known Greschieber, which braces the locking wedge on a flat support surface against a arranged in the die / driver flat clamping surface for rotational locking of the filling slide.
- the die-side clamping surface is arranged tangentially to the bearing circle contour of the filling slide with a lying outside this circular contour clamping range for the locking wedge.
- Hot forming processes are also described in the literature as mold hardening or press hardening.
- the structural components of the body are not only significantly involved in the stability of the vehicle, but also play a crucial role in safety in the event of a crash. In order to resolve the conflict of objectives between reduction of the component weight of structural components while retaining their mechanical characteristics, hot forming processes are suitable.
- Heating system to a temperature above the
- the blank or a pre-formed and trimmed steel component is thermo-mechanically deformed after heating to the Austenitmaschinestemperatur in the mold, the thermo-mechanical forming at a temperature above the Austinitmaschinesendtemperatur Ac3 (about 830 ° C) preferably between 900 and 1100X is done.
- the cooling of the transformed Austenitmaschinestemperatur in the mold is thermo-mechanically deformed after heating to the Austenitmaschinestemperatur in the mold, the thermo-mechanical forming at a temperature above the Austinitmaschinesendtemperatur Ac3 (about 830 ° C) preferably between 900 and 1100X is done.
- the patent DE 19723655 B4 shows a method for producing steel sheet products by heating a measured steel sheet, hot working the steel sheet in a pair of tools, hardening the formed product by rapidly cooling from an austenitic temperature while still being held in the pair of tools and then processing the product ,
- the invention has for its object to provide a device with which the disadvantages of the prior art are overcome. It is a particular object of the invention to provide a device with which the manufacturing costs for the production of hot-formed components can be reduced.
- the invention proposes a device for a press for forming a sheet metal part with a section which can be shaped as an undercut in the device, comprising a press-side punch and a die and the undercut - shaping serving, separately drivable molding tool with a
- Undercut contour cooperates, which is arranged substantially in a rotationally movably mounted in the die Grechieber, wherein the filling slide from a molding position in the undercut in the
- Sheet metal part releasing position and vice versa is feasible.
- Farther can be provided in the filling slide at least one tempering, with which the filling slide is at least partially tempered.
- the filling slide designed as a rotary valve can be used in a hot forming tool for the production of hardened components.
- a plurality of tempering devices can be provided with which individual sections of the filling slide can be temperature-controlled to different or the same temperatures. If those
- Temperature control devices are acted upon with different temperatures, a further benefit is achieved in the area of the rotary valve by so-called soft zones (Tailored Tempering) can be made in the component by the different temperature zones in the slide area. Soft zones are achieved in the areas in which warmer tempering are provided, as in these areas, the component is cooled more slowly.
- soft zones are achieved in the areas in which warmer tempering are provided, as in these areas, the component is cooled more slowly.
- zones lying behind one another with different mechanical values, in particular strength and / or ductility, can be produced in the longitudinal direction of the undercut region of the component.
- the temperature control devices may be configured to control the temperature control devices.
- the channels may be aligned substantially parallel to each other. This results in advantages in the production of the Greschiebers. Furthermore, the channels can be aligned substantially parallel to a rotation axis about which the filling slide can be rotatable.
- Tempering device may be formed as at least one channel which is für Hughesbar with a tempered medium, in particular a gas and / or a liquid.
- a tempered medium in particular a gas and / or a liquid.
- Tempering device may be formed as at least one recess in the forming surface of the Greschiebers.
- the shaping surface of the filling slide is a surface of the slide, which comes into contact with the sheet to be formed. By forming a depression, an air gap between the plate and the filling slide is enclosed in the hot forming of the sheet. This serves as a local thermal insulator and prevents a rapid cooling of the local area, which soft area in the sheet metal part are realized by this section.
- the tempering device is designed as at least one electric heating cartridge.
- Electric heaters offer advantages in that they are quickly adjustable to the desired temperature.
- the temperature can be controlled and / or regulated very precisely.
- Suitable media include liquid such as water, coolant, oil, emulsions and / or combinations thereof.
- a contact-free application without complex adjustment measures is achieved in a further advantageous manner in that the Greschieber for proper surface interaction of its contact surfaces with the corresponding sink-side support surfaces has a rotary guide having either a predetermined increased bearing clearance, or according to other proposals with a radially elastic yielding Intermediate element in the preferred embodiment of a rubber bushing or a corrugated metal bushing is made of spring steel. Also, an eccentrically arranged in the direction of the sink-side support surfaces Dreh exit the Artschiebers conceivable, the rest with the
- the filling slide the length passing through, the die side fixedly arranged axis possible, or arranged at both ends of the rotary valve pivot for storage in the swaging provided stock bearings.
- These stand bearings may be movably arranged in the direction of the support surfaces arranged in the filling slide receptacle instead of the yielding rotary guides mentioned above by means of an elastic intermediate layer.
- this is made of a cast iron alloy - cast steel or gray cast iron - tool steel or a steel alloy with Kupfermatrial, and that the contact surfaces and the sink-side support surfaces separately on hardened strips or strip portions of a Case steel are formed.
- Wedge drive tools be provided that the molds are driven separately from the press - stamp movement, for example via hydraulically or pneumatically effective piston / cylinder units.
- Hot forming tool (oven technology with different
- Rotary valves are not only for the hot forming of steel
- the invention is described with reference to a device only partially shown in the drawing for a press for forming a sheet metal part with an undercut by means of a filling slide shown in cross-section.
- Fig. 1 shows a filling slide shown in cross-section in the molding position for an undercut in a merely indicated
- the merely indicated device 1 can be designed, for example, similar to that in FIG. 1 of the drawing of the already mentioned EP 0 699 489 B1 for a press, not shown, for forming a sheet metal part 2, preferably serving as a body panel, with a separately formed in the device 1 as an undercut 3 Section 4 of the
- the device 1 comprises not only a press punch, not shown, a press die 5 and a shaping of the undercut 3 serving, separately drivable molding tool.
- a rotatably mounted Greeber 8 is arranged in the die 5, in which the contour 9 for the
- Undercut 3 is formed for the molding of the body panel edge 7 by means of the molding tool 6. As can be seen from Figure 1, this takes the Greschieber 8, the position 10 for forming the undercut 3 on the body panel edge 7 a. As can be seen from Fig.1 further, the rotatable Gresber 8 is equipped with circumferentially arranged, flat-shaped Roof kauen 11 equipped. This contact surfaces 11 are brought with a rotational movement of the Greschiebers 8 according to arrow A in the direction of the Ausform-Postion 10 for planar contact on also planar shaped Stütz vom12 in a die 5 arranged Sleepschieber- recording 13. To release the fully formed undercut 3 is according to the invention designed Standschieber 8 shown in FIG. 2 in the direction of arrow F in the release position 14 is rotated.
- tempering devices 100 shown here as channels, which run parallel to the axis of rotation 15 of the filling slide 8 and thus perpendicular to the plane of Figures 1 and 2.
- a medium such as a gaseous or liquid fluid be rinsed.
- This fluid is set at a predetermined temperature.
- the rotary valve 8 can be specifically tempered, i. be cooled.
- individual areas of the rotary valve can be heated differently, ie.
- each radial beam 16 with a respective contact surface at least a right angle - 90 ° - includes, preferably slightly larger from about 92 ° to 95 °.
- Support surfaces 12 is freely selectable with the exception of the parallel alignment with the filling slide-side contact surfaces 11 on the filling slide 8 in the closed position or in the molding position 10.
- the Greschieber 8 a rotary guide 17 with a predetermined enlarged bearing clearance, thereby easily a flawless surface interaction of the contact surfaces 11 with the korsspond Schlour support surfaces 12th achieved.
- the above-described effect is achieved in another embodiment of the rotary guide 17, characterized in that the rotary guide 17 is equipped instead of an enlarged bearing clearance with a radially resilient intermediate element 18.
- This may be a rubber bush with a Shore hardness A of 60-80, preferably 70 or a corrugated metal bushing made of spring steel.
- a further embodiment results from the fact that the rotary guide 17 of the filling slide 8 is arranged eccentrically in the direction of the sink-side support surfaces 12, which
- the filling slide 8 can be mounted on a longitudinally passing through him, the swaging side fixedly arranged at both ends axis.
- the filling slide 8 is rotatably guided via swivel pins 19 arranged at both ends in stand bearings 20 arranged on the swage side. These can also be moved relative to the die 5 by means of an elastic intermediate layer, not shown, in the direction of the filling slide receptacle 3 for the perfect support of the contact surfaces 11 on the support surfaces 12.
- the support surfaces 12 hydraulically controlled and lockable in the die 5 arranged to provide pistons, not shown, the Greschieber 8 is arranged with the smallest bearing clearance and in rigid execution in the die 5.
- the forming tools 6 can be driven separately from the movement of the nichrt press stamp shown to form the
- Rotary movement of the filling slide 8 may hydraulically or pneumatically effective piston-cylinder units (not shown) may be appropriate, which are controlled by the movement of the press - stamp.
- the device 1 can also according to the number of arcuately arranged Medschiebern 8 a corresponding number of not shown, per se, however, from the documents mentioned in EP 0 699 489 B1 and US 6, 523, 386 B2 known Keilretemaschinemaschineen include, the well-known are directly controlled by the movement of the press punch.
- the die section 50 designed as driver 23 is movable back and forth as
- Working slide 24 designated mold 6 is controlled by its wedge surface 25 of a punch side arranged, partially indicated slide bed 26 relative to the filling slide 8 moves.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Heat Treatment Of Articles (AREA)
- Forging (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014211658.9A DE102014211658A1 (de) | 2014-06-18 | 2014-06-18 | Drehschieber mit Kühlung und temperierten Zonen |
| PCT/EP2015/061544 WO2015193063A1 (de) | 2014-06-18 | 2015-05-26 | Drehschieber mit kühlung und temperierten zonen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3157691A1 true EP3157691A1 (de) | 2017-04-26 |
| EP3157691B1 EP3157691B1 (de) | 2019-12-04 |
Family
ID=53267366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15724660.4A Active EP3157691B1 (de) | 2014-06-18 | 2015-05-26 | Drehschieber mit kühlung und temperierten zonen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10207307B2 (de) |
| EP (1) | EP3157691B1 (de) |
| CN (1) | CN106102946A (de) |
| DE (1) | DE102014211658A1 (de) |
| WO (1) | WO2015193063A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015215184B4 (de) * | 2015-08-10 | 2018-04-12 | Bayerische Motoren Werke Aktiengesellschaft | Werkzeug zur Wärmebehandlung von hinterschnittenen Bauteilen |
| TWI610730B (zh) * | 2016-12-02 | 2018-01-11 | 財團法人金屬工業研究發展中心 | 具負角結構部件的熱沖壓成形模具 |
| CN115673113B (zh) * | 2022-09-30 | 2026-02-03 | 岚图汽车科技股份有限公司 | 应用在顶盖侧翻边中的连杆填充装置 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5347838A (en) | 1993-06-25 | 1994-09-20 | Umix Co., Ltd. | Forming die for thin plate |
| SE9602257L (sv) * | 1996-06-07 | 1997-12-08 | Plannja Hardtech Ab | Sätt att framställa ståldetalj |
| JPH11285740A (ja) | 1998-04-01 | 1999-10-19 | Toyota Motor Corp | 回転カム軸受構造 |
| JP2002241835A (ja) * | 2001-02-20 | 2002-08-28 | Aisin Takaoka Ltd | ワークの部分強化方法 |
| JP3505157B2 (ja) | 2001-03-05 | 2004-03-08 | ユミックス株式会社 | 負角成形型 |
| US6810709B2 (en) * | 2002-10-11 | 2004-11-02 | General Motors Corporation | Heated metal forming tool |
| US7254977B2 (en) * | 2004-01-20 | 2007-08-14 | Pullman Industries, Inc. | Coolant delivery system and continuous fabrication apparatus which includes the system |
| US7159437B2 (en) * | 2004-10-07 | 2007-01-09 | General Motors Corporation | Heated die for hot forming |
| DE102005009416A1 (de) * | 2005-03-02 | 2006-09-14 | Bayerische Motoren Werke Ag | Vorrichtung für eine Presse zum Formen eines Blechteiles mit einem als Hinterschnitt gesondert in der Vorrichtung ausformbaren Abschnitt |
| US8130203B2 (en) | 2007-01-03 | 2012-03-06 | Apple Inc. | Multi-touch input discrimination |
| DE102008016118A1 (de) * | 2008-03-19 | 2009-09-24 | Volkswagen Ag | Vorrichtung und Verfahren zur Herstellung von Formbauteilen in Fertigungsverfahren |
| DE202010003605U1 (de) | 2010-03-15 | 2010-07-08 | Voestalpine Automotive Gmbh | Vorrichtung zum Formen und/oder Härten von Blechbauteilen |
| DE102010027554A1 (de) * | 2010-07-19 | 2012-01-19 | Thyssenkrupp Umformtechnik Gmbh | Umformwerkzeug und Verfahren zum Warmumformen und partiellen Presshärten eines Werkstückes aus Stahlblech |
| KR101253838B1 (ko) * | 2010-12-27 | 2013-04-12 | 주식회사 포스코 | 이물성 부품의 제조방법 |
| CN102172719A (zh) * | 2011-02-12 | 2011-09-07 | 机械科学研究总院先进制造技术研究中心 | 一种自带测温系统的热冲压模具 |
| DE102014107210A1 (de) * | 2014-05-22 | 2015-11-26 | Benteler Automobiltechnik Gmbh | Modulares Warmformwerkzeug |
-
2014
- 2014-06-18 DE DE102014211658.9A patent/DE102014211658A1/de not_active Withdrawn
-
2015
- 2015-05-26 WO PCT/EP2015/061544 patent/WO2015193063A1/de not_active Ceased
- 2015-05-26 CN CN201580015319.4A patent/CN106102946A/zh active Pending
- 2015-05-26 EP EP15724660.4A patent/EP3157691B1/de active Active
-
2016
- 2016-09-15 US US15/266,162 patent/US10207307B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106102946A (zh) | 2016-11-09 |
| US10207307B2 (en) | 2019-02-19 |
| EP3157691B1 (de) | 2019-12-04 |
| US20170001234A1 (en) | 2017-01-05 |
| DE102014211658A1 (de) | 2015-12-24 |
| WO2015193063A1 (de) | 2015-12-23 |
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