EP2282853B1 - Stützkern und verfahren für die herstellung von hohlprofilen - Google Patents
Stützkern und verfahren für die herstellung von hohlprofilen Download PDFInfo
- Publication number
- EP2282853B1 EP2282853B1 EP09742014A EP09742014A EP2282853B1 EP 2282853 B1 EP2282853 B1 EP 2282853B1 EP 09742014 A EP09742014 A EP 09742014A EP 09742014 A EP09742014 A EP 09742014A EP 2282853 B1 EP2282853 B1 EP 2282853B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- supporting
- core
- supporting members
- supporting core
- pulled
- 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.)
- Not-in-force
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 13
- 230000004308 accommodation Effects 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 4
- 239000000806 elastomer Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000004323 axial length Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011049 pearl Substances 0.000 description 1
- 238000011084 recovery 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
- B21D9/00—Bending tubes using mandrels or the like
- B21D9/01—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length
- B21D9/03—Bending tubes using mandrels or the like the mandrel being flexible and engaging the entire tube length and built-up from loose elements, e.g. series of balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/16—Making tubes with varying diameter in longitudinal direction
Definitions
- the invention relates to a support core for use in a device for forming blanks in a structured hollow profile with a plurality of interconnected support members and a method for producing structured hollow sections of a circuit board.
- supporting cores are needed, which largely correspond to the inner contour of the hollow profile.
- the support cores must be able to absorb the forming forces during the forming of the boards without substantial deformation, to allow an accurate molding of the inner contour of the hollow profile.
- Curved hollow sections or hollow sections with variable cross-section no longer allow the use of a rigid support core.
- supporting cores made of an elastomer can support the inner contour over the entire surface, they are only able to absorb the high forming forces to a limited extent. In particular, locally occurring, very large surface pressures are problematic here.
- a core for use during pipe bending which consists of a plurality of interconnected support members.
- the problem with this core is that it is designed relatively complex and a full-surface support, as it is necessary in the production of structured hollow sections, not possible.
- the German patent 562 804 C discloses a mandrel for bending pipes.
- the mandrel is made up of individual links which are connected by elongated holes plates and bolts contained therein.
- the disadvantage is the limited possibility of movement of the individual limbs.
- JP 03 193220 A discloses such a very similar mandrel for bending pipes.
- the US patent US-A-3,973,717 also relates to forming a cylinder from a metal plate, wherein the board is first U-shaped by means of a first die and a cylindrical, integral mandrel and then brought into a cylindrical shape with a second die.
- the present invention has thus set itself the task of providing a support core for use in the production of structured hollow profiles available, on the one hand a full-surface support of Guaranteed board and yet allows the production of hollow profiles with variable cross-section or curved course.
- a method for the production of structured hollow profiles to be proposed.
- the above-described object is achieved in that the individual support members in the pushed together state at least partially form the inner contour of the hollow profile to be produced and are interconnected via coupling elements, the coupling elements allow a pulling apart of the support members, wherein in the extended state, the support members articulated connected to each other.
- Lined up as on a string of pearls can be the support members of the support core according to the invention when pulling the support core apart, so that they are held during the pulling at a certain distance from each other.
- the support members of the support core according to the invention are hinged together, so that they can be angled against each other. This allows the support members of the support core to follow the shape of the hollow profile during the pulling of the support core and to allow the support core to be pulled despite a curved course of the hollow profile or a variable cross section.
- the support members yield, at least partially flat, the inner contour of the hollow profile to be produced and thus enable an accurate molding of the inner contour.
- the support members are releasably connected to each other via the coupling elements, so that the support core can be adapted by using different support members to other hollow profiles in the contours.
- the axial length of the support members of the support core is typically chosen so that the structure of the support core is as simple as possible. On the other hand, can be supported by a smaller length of the support members simple pulling of the support core after forming.
- According to the invention may consist of a coupling elements of the support members of an extension with a positive connection region and an opening for the positive reception of the extension and the positive connection region.
- a coupling elements of the support members of an extension with a positive connection region and an opening for the positive reception of the extension and the positive connection region.
- the form-fitting region of the extension is spherical, this can be angled in an exploded position in all directions, without losing the positive connection.
- a suitably equipped, according to the invention support core is therefore particularly flexible.
- the end faces of the support members are formed as axial support surfaces. Through these support surfaces of the support core can be acted upon with forces in the axial direction, that the support core axially braced and thus can afford a higher resistance to the forming forces during forming.
- the support core according to the invention can advantageously and preferably be designed in such a way that the support members placed over the end faces in abutment form the complete inner contour of the hollow profile to be formed.
- the molding accuracy during the production of the structured hollow profile can thereby be further improved.
- the above-indicated object of a method for the production structured hollow profiles of a board solved in that a support core according to the invention is used.
- the support core according to the invention enables on the one hand a secure forming of the board into a structured hollow profile and on the other hand a simplified pulling of the support core after forming.
- the method according to the invention using the support core according to the invention thus enables a simplified production process for structured hollow profiles with greater molding accuracy and yet a high degree of flexibility with regard to the shaping of the hollow profiles.
- the board is first formed U-shaped and introduced the support core in the U-shaped board, wherein at one end of a U-shaped die, in which the U-shaped board is located, a stop for the Support core is provided, against which the support core can be pressed at least during the forming by a force in the axial direction.
- the use of the stopper is an easy way to pressurize the support core in the axial direction, so that the movable support members of the support core can oppose additional resistance to the forming forces during the forming of the U-shaped board into a hollow profile.
- the support core is in the extended state in the U-shaped board introduced, by an axially directed force the individual support members are pushed against each other and acted upon by their end faces with an axial force.
- the end faces usually offer large bearing surfaces of the individual support members against each other, so that the support core can be acted upon in the axial direction with relatively high axial forces.
- a particularly economical and rational method for the production of structured hollow profiles can finally be provided by the fact that the board is formed by a U-O-forming or using a Einrolltechnik to form a hollow profile.
- Fig. 1 now shows in a perspective side view of an embodiment of a support core 1 according to the invention, which consists of a plurality of individual support members 2.
- the support core 1 is in the Fig. 1 shown in exploded state, so that the support surfaces 3 of the individual support members 2 and the coupling elements 4 are visible.
- the support core 1 is composed of a plurality of support members, the support members are colored differently. As can be seen on the basis of the exploded support members 2, these have in addition to two end faces also a different expression in the axial direction.
- the first member 2a of the support core 1 is wedge-shaped in order to effect, for example, a curvature of the support core 1 in the pushed-together state.
- the support members 2 are therefore designed such that upon contact of the support members at their respective end faces of the support core 1 occupies the inner contour of the hollow profile to be produced at least partially.
- Fig. 2 in a collapsed state of the support core is curved and forms the inner contour of the hollow profile to be produced.
- the first member 5 of the support core 1 additionally has a centering, which serves to rest against a stop. If the support core is acted upon by a force on the support members 5, 6 in the direction of the arrow, and insofar the axial force is applied to the support members 2 in the axial direction, the support core forms a core which absorbs the deformation forces and which, after forming, is deformed in the direction of the member 6 Hollow profile can be removed.
- a perspective view is in Fig. 3 the structure of the coupling element 7 is shown, which has on its the member 2b of the support core 1 side facing an extension 8, which comprises a spherical form-fitting region 9.
- the spherical positive connection region 9 engages in an opening 10 provided by the next coupling element.
- the position of the extension 8 can be varied in the coupling element 7, so that both a pushing together of the support members 2 of the support core is possible as well as a pulling apart.
- the support members of the support core can be angled apart in the extended state against each other or twisted. This allows a simple pulling of the support core, for example, even if curved or curved hollow sections are to be produced.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09742014T PL2282853T3 (pl) | 2008-05-06 | 2009-04-29 | Rdzeń podporowy i sposób wytwarzania pustych profili |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008022402A DE102008022402A1 (de) | 2008-05-06 | 2008-05-06 | Stützkern für die Herstellung von Hohlprofilen |
PCT/EP2009/055230 WO2009135796A1 (de) | 2008-05-06 | 2009-04-29 | Stützkern für die herstellung von hohlprofilen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2282853A1 EP2282853A1 (de) | 2011-02-16 |
EP2282853B1 true EP2282853B1 (de) | 2012-08-15 |
Family
ID=40911008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09742014A Not-in-force EP2282853B1 (de) | 2008-05-06 | 2009-04-29 | Stützkern und verfahren für die herstellung von hohlprofilen |
Country Status (8)
Country | Link |
---|---|
US (1) | US8881572B2 (zh) |
EP (1) | EP2282853B1 (zh) |
CN (1) | CN102015141B (zh) |
DE (1) | DE102008022402A1 (zh) |
ES (1) | ES2392922T3 (zh) |
PL (1) | PL2282853T3 (zh) |
PT (1) | PT2282853E (zh) |
WO (1) | WO2009135796A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018099744A1 (de) | 2016-12-01 | 2018-06-07 | Linde + Wiemann SE & Co. KG | Verfahren und halbzeug zur herstellung eines wenigstens partiell gehärteten profilbauteils |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010017022B4 (de) * | 2010-05-19 | 2012-05-31 | Thyssenkrupp Steel Europe Ag | Verfahren zum Herstellen eines Hohlprofils, Stützkern zur Durchführung des Verfahrens sowie ein danach hergestelltes Profil |
KR20130123847A (ko) * | 2012-05-04 | 2013-11-13 | 현대자동차주식회사 | 센터필러용 보강재의 제조장치 |
JP6756628B2 (ja) * | 2017-01-17 | 2020-09-16 | フタバ産業株式会社 | 管体成形方法 |
CN110756631B (zh) * | 2019-11-22 | 2021-06-22 | 保隆(安徽)汽车配件有限公司 | 一种用于截面周长变化弯管的弯管芯模及弯管装置 |
CN110788179B (zh) * | 2019-11-22 | 2021-07-02 | 保隆(安徽)汽车配件有限公司 | 一种截面周长变化复杂椭圆弯管的成型方法和弯管装置 |
CN110893427B (zh) * | 2019-12-23 | 2024-04-26 | 江苏金鑫电器有限公司 | 一种螺旋焊管的弯曲工装 |
Family Cites Families (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US553608A (en) * | 1896-01-28 | Curved sectional mandrel | ||
DE562804C (de) | 1932-10-29 | Otto Seydewitz | Dorn zum Biegen von Rohren | |
DE37007C (de) * | G. ROUND in Smethwick, Stafford, England | Gegliederter Dorn zum Winden und Biegen von Röhren | ||
US1387199A (en) * | 1920-06-22 | 1921-08-09 | Philadelphia Bronze Bearing & | Method of making tubing |
US1534314A (en) | 1923-04-30 | 1925-04-21 | Heintz Mfg Co | Method of bending metal |
US1748158A (en) * | 1928-05-02 | 1930-02-25 | American Car & Foundry Co | Flexible mandrel |
US1995368A (en) * | 1933-05-15 | 1935-03-26 | Sunnen Joseph | Method of fabricating structural members |
US2103574A (en) * | 1934-06-12 | 1937-12-28 | John B Wintercorn | Positively controlled tube bore mandrel for tube forming machines |
US2776697A (en) * | 1955-03-24 | 1957-01-08 | Leonard E Zerlaut | Flexible mandrel |
US2984284A (en) * | 1956-02-21 | 1961-05-16 | Sam L Ballard | Flexible mandrel for use in cold bending pipe |
US2962077A (en) * | 1958-11-18 | 1960-11-29 | Boeing Co | Pipe bending mandrel |
DE1527318A1 (de) * | 1963-09-07 | 1970-03-05 | H & H Engineering Company | Rohrbiegedorn |
DE1527313C3 (de) * | 1965-06-21 | 1978-04-13 | Rockwell Golde Gmbh, 6000 Frankfurt | Vorrichtung zum Biegen von Profilen, Rohren o.dgl |
US3750455A (en) * | 1971-12-27 | 1973-08-07 | Tools For Bending Inc | Erect tube bending mandrel |
US3879994A (en) * | 1973-08-16 | 1975-04-29 | Kenneth Michael Hume | Plate rolling |
US3973717A (en) | 1975-04-21 | 1976-08-10 | Ppg Industries, Inc. | Bushing fabrication |
US4123930A (en) * | 1977-03-29 | 1978-11-07 | Teledyne Industries, Inc. | Mandrel for bending tubes |
SU740344A1 (ru) | 1978-03-27 | 1980-06-15 | Предприятие П/Я В-2946 | Оправка дл гибки труб |
JPS6043813B2 (ja) * | 1978-11-22 | 1985-09-30 | 新日本製鐵株式会社 | 厚肉uo鋼管成形法 |
DE3000170C2 (de) | 1980-01-04 | 1984-09-06 | W. Eckold AG, Trimmis | Dorn für ein zu biegendes Rohr |
US4475375A (en) * | 1983-01-24 | 1984-10-09 | Hill Ernest W | Multi-flex tube bending mandrel |
JPS6220710U (zh) * | 1985-07-17 | 1987-02-07 | ||
JPS6220710A (ja) | 1985-07-18 | 1987-01-29 | Matsushita Electric Ind Co Ltd | 自動車用空調装置 |
US4635464A (en) * | 1985-09-03 | 1987-01-13 | Eaton Leonard Corporation | Tube bending mandrel |
SU1397121A2 (ru) * | 1986-05-05 | 1988-06-15 | Тамбовский институт химического машиностроения | Оправка дл гибки труб |
US4716753A (en) * | 1986-07-10 | 1988-01-05 | Dresser Industries, Inc. | Flexible tube expander extension assembly |
US4744233A (en) * | 1986-07-14 | 1988-05-17 | Ap Industries, Inc. | Apparatus for bending rectangular tubes |
DD276043A1 (de) | 1988-10-05 | 1990-02-14 | Waermegeraete U Armaturen Werk | Verfahren und vorrichtung zur herstellung duennwandiger rohre |
WO1990010510A1 (en) * | 1989-03-15 | 1990-09-20 | Hu-Metal Engineering Pty. Limited | Apparatus for forming a pipe from a sheet metal plate |
JPH03193220A (ja) | 1989-12-21 | 1991-08-23 | Fuji Heavy Ind Ltd | 管材の曲げ加工用芯金 |
WO1995002474A1 (en) * | 1993-07-14 | 1995-01-26 | Kenneth Michael Hume | Tapered mandrels for plate bending |
EP0939681A1 (en) * | 1996-11-21 | 1999-09-08 | Grand Prix Silencers B.V. | Bending mandrel |
JP2001121217A (ja) * | 1999-10-21 | 2001-05-08 | Hitachi Ltd | 芯 型 |
WO2001041949A2 (en) | 1999-12-10 | 2001-06-14 | R.J. Tower Corporation | Blank shaping tool |
US20030180088A1 (en) * | 2000-09-02 | 2003-09-25 | Camevali Jeffrey D. | Flexible electronic mount apparatus |
JP4229766B2 (ja) * | 2003-06-19 | 2009-02-25 | 株式会社オプトン | 曲げ加工用マンドレル |
JP4946206B2 (ja) * | 2006-06-27 | 2012-06-06 | 住友金属工業株式会社 | 異形管の曲げ加工方法および曲げ加工装置、並びに加工された自動車用部品 |
CN101096038A (zh) * | 2006-06-28 | 2008-01-02 | 浙江金马逊机械有限公司 | 一种用于弯管机的多节活芯 |
-
2008
- 2008-05-06 DE DE102008022402A patent/DE102008022402A1/de not_active Ceased
-
2009
- 2009-04-29 CN CN2009801161506A patent/CN102015141B/zh not_active Expired - Fee Related
- 2009-04-29 US US12/990,884 patent/US8881572B2/en active Active
- 2009-04-29 WO PCT/EP2009/055230 patent/WO2009135796A1/de active Application Filing
- 2009-04-29 PL PL09742014T patent/PL2282853T3/pl unknown
- 2009-04-29 EP EP09742014A patent/EP2282853B1/de not_active Not-in-force
- 2009-04-29 ES ES09742014T patent/ES2392922T3/es active Active
- 2009-04-29 PT PT09742014T patent/PT2282853E/pt unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018099744A1 (de) | 2016-12-01 | 2018-06-07 | Linde + Wiemann SE & Co. KG | Verfahren und halbzeug zur herstellung eines wenigstens partiell gehärteten profilbauteils |
DE102016123265A1 (de) | 2016-12-01 | 2018-06-07 | Linde + Wiemann SE & Co. KG | Verfahren und Halbzeug zur Herstellung eines wenigstens partiell gehärteten Profilbauteils |
Also Published As
Publication number | Publication date |
---|---|
ES2392922T3 (es) | 2012-12-17 |
CN102015141A (zh) | 2011-04-13 |
EP2282853A1 (de) | 2011-02-16 |
PT2282853E (pt) | 2012-11-29 |
US20110265536A2 (en) | 2011-11-03 |
PL2282853T3 (pl) | 2013-01-31 |
CN102015141B (zh) | 2013-11-27 |
US20110088443A1 (en) | 2011-04-21 |
WO2009135796A1 (de) | 2009-11-12 |
DE102008022402A1 (de) | 2009-11-19 |
US8881572B2 (en) | 2014-11-11 |
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