EP2415537A1 - Formvorrichtung und verfahren zum erhalt von lokalen verformungen in offenen profilen - Google Patents

Formvorrichtung und verfahren zum erhalt von lokalen verformungen in offenen profilen Download PDF

Info

Publication number
EP2415537A1
EP2415537A1 EP09842117A EP09842117A EP2415537A1 EP 2415537 A1 EP2415537 A1 EP 2415537A1 EP 09842117 A EP09842117 A EP 09842117A EP 09842117 A EP09842117 A EP 09842117A EP 2415537 A1 EP2415537 A1 EP 2415537A1
Authority
EP
European Patent Office
Prior art keywords
coil
section
movement
die
movement direction
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.)
Withdrawn
Application number
EP09842117A
Other languages
English (en)
French (fr)
Other versions
EP2415537A4 (de
Inventor
Iñaki EGUIA IBARZABAL
Angela MANGAS PÉREZ
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.)
Fundacion Tecnalia Research and Innovation
Original Assignee
Fundacion Labein
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 Fundacion Labein filed Critical Fundacion Labein
Publication of EP2415537A1 publication Critical patent/EP2415537A1/de
Publication of EP2415537A4 publication Critical patent/EP2415537A4/de
Withdrawn legal-status Critical Current

Links

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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
    • 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
    • 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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
    • B21D5/083—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers for obtaining profiles with changing cross-sectional configuration

Definitions

  • the present invention relates to the shaping field for obtaining local deformations in sections. It more specifically relates to continuously advancing open sections coming from a profiling station where the shaping of the open sections takes place.
  • profiling stations a strip of metal is continuously bent by means of the action exerted by pairs of consecutively aligned rollers. These stations can also comprise additional rollers that allow obtaining a variable cross-section throughout its length.
  • Profiling machines are described, for example, in German patent DE10011755A1 and in PCT application WO02/43886A1 .
  • open sections for example U, T, H sections, or any other configuration
  • U, T, H sections or any other configuration
  • Local deformations are subsequently performed on the shaped section, i.e., that already has its final shape.
  • These local deformations can be, for example, small embossments, holes, grooves or bends, in any area or surface of the section obtained in the shaping station.
  • Said local deformations are generally performed in an independent station on the sections already cut to their final dimensions. These deformations are performed outside the section profiling and movement line (with the immobile section in an independent station) because it is virtually impossible to perform said local deformation operations continuously in the profiling line due to the continuous movement of the section that is being formed.
  • the object of the invention is a shaping device for obtaining local deformations in continuously advancing open sections moved by first movement means according to a first movement direction.
  • open sections are understood as U, T, H section or any other section configuration obtained continuously in a profiling station bending a strip of metal by means of shaping rollers. These sections can have a constant or variable cross-section.
  • the shaping rollers furthermore cause the movement of the section obtained according to a first movement direction.
  • the first movement means can be the shaping rollers.
  • the device of the invention is provided for performing local deformations in any area or surface of the open section, the deformations being shaped with the moving section driven by the shaping rollers, i.e., without the section necessarily being immobile.
  • local deformations are understood as any type of embossment, hole or bend that can be made in any area or surface of the open section once it is shaped, i.e., it already has its U, T, H cross-section, etc., configuration.
  • the shaping device of the invention comprises:
  • the coil is moved (by means of the second movement means) to be positioned close to an area of a section in which the local deformation is to be formed.
  • the die is also moved (by means of the third movement means) to be positioned close to the mentioned area of the section and facing the coil. Between the coil and the die there is a gap allowing the passage of the section (the section is continuously moved), this gap being suitable for the electromagnetic impulse in the coil to produce a deformation in the aforementioned area of the section which will be the local deformation to be obtained.
  • the die and the coil are positioned with respect to the section according to the second movement direction which, for example, can be a substantially vertical direction and the electromagnetic impulse of the coil is controlled by control means, taking into account the movement of the section according to the first movement direction, such that the local deformation has a specific dimension and position according to the first movement direction.
  • the deformation could have more or less depth.
  • the dimensions of the deformation according to the first movement direction also approximately correspond with the dimension of the coil according to the first movement direction.
  • the die can have a contact surface the geometry of which coincides with the first local deformation to be obtained in the section.
  • the coil can have an active surface (the surface closest to the section) with any configuration, for example a flat configuration, but it can also have a configuration close to that of the local deformation to be obtained.
  • the device can comprise a dolly assembled on fourth movement means configured for positioning the dolly in correspondence with the position of the coil such that the dolly can prevent a movement of the section in the second movement direction during the electromagnetic impulse.
  • the second movement direction is a vertical direction, i.e., when the open section advances according to a horizontal plane of advance, the dolly is arranged below the section in correspondence with the area in which the electromagnetic impulse of the coil takes place because this electromagnetic impulse causes main force lines which act by producing movement and local deformation of the section against the die, but secondary force lines are also produced in the second movement direction (for example in the downward vertical direction) which tend to move the section in that direction.
  • the purpose of the dolly is to prevent this movement of the section from happening.
  • the second and third movement means can move the coil and the die in the first movement direction, this movement being performed such that the relative speed between the section and the coil and die is nil. This allows the local deformation to occur as if the section was immobile, which is especially advantageous for producing deformations the axis of which is parallel to the second movement direction such as, for example, vertical grooves or deformations.
  • the second and third movement means can perform a movement in the transverse direction according to a third movement direction perpendicular to the first movement direction and parallel to the plane of advance of the section.
  • the electromagnetic coil and the die can thus be moved for being positioned with respect to the section, to be adapted to the location thereof, as well as for the gap between the coil and the die to be suitable for producing the local deformation to be obtained.
  • the device can comprise an additional die assembled on fourth movement means which can move the additional die according to the second movement direction, the fourth movement means being configured for positioning the additional die according to the second movement direction, such that the coil and the additional die are facing one another and separated a second gap allowing the section to pass between the coil and the additional die according to the first movement direction, and in that the electromagnetic impulse in the coil is capable of producing a second local deformation in the section. Local deformations can thus be produced in two different areas of the section, for example producing deformations in the two vertical flanges of a U section.
  • the additional die can have a contact surface the geometry of which coincides with the second local deformation to be obtained in the section.
  • the device can comprise an additional coil assembled on fifth movement means which can move the additional coil according to the second movement direction, the fifth movement means being configured for positioning the additional coil according to the second movement direction, such that the additional coil and the additional die are facing one another and separated the second gap allowing the section to pass between the coil and the additional die according to the first movement direction, and in that the electromagnetic impulse in the coil is capable of producing the second local deformation in the section.
  • the electromagnetic impulse produced in the additional coil can be synchronized with the electromagnetic impulse produced in the electromagnetic coil, the first and the second local deformations being produced simultaneously.
  • Another object of the invention is a shaping method for obtaining local deformations in continuously advancing open sections moved by first movement means according to a first movement direction.
  • the method of the invention comprises the following phases:
  • Phase a) of the method can comprise a movement of the electromagnetic coil according to a second movement direction substantially perpendicular to a plane of advance in which the first movement direction is comprised and phase b) can comprise a movement of the die according to a second movement direction substantially perpendicular to a plane of advance in which the first movement direction is comprised.
  • the second movement direction can be a substantially vertical direction.
  • the coil is moved (according to the second movement direction) to be positioned close to an area of a section in which the local deformation is to be formed.
  • the die is also moved (according to the second movement direction) to be positioned close to the mentioned area of the section facing the coil. Between the coil and the die there is a gap allowing the passage of the section (the section is moved continuously), this gap being suitable for the electromagnetic impulse in the coil to produce a deformation in the aforementioned area of the section which will be the local deformation to be obtained.
  • the die and the coil are positioned with respect to the section according to the second movement direction which, for example, can be a substantially vertical direction, and the electromagnetic impulse of the coil is controlled by control means, taking into account the movement of the section according to the first movement direction, such that the local deformation has a specific dimension and position according to the first movement direction.
  • the deformation could have more or less depth.
  • the dimensions of the deformation according to the first movement direction also approximately correspond with the dimension of the coil according to the first movement direction.
  • the die can have a contact surface the geometry of which coincides with the first local deformation to be obtained in the section.
  • the coil can have an active surface (the surface closest to the section) with any configuration, for example a flat configuration, but it can also have a configuration close to that of the local deformation to be obtained.
  • the method comprises an additional phase of positioning a dolly in correspondence with the position of the coil such that the dolly can prevent a movement of the section in the second movement direction during the electromagnetic impulse.
  • the second movement direction is a vertical direction, i.e., when the open section advances according to a horizontal plane of advance, the dolly is arranged below the section in correspondence with the area in which the electromagnetic impulse of the coil is produced to prevent the movement of the section according to the vertical direction.
  • the method can comprise an additional phase for moving the second and third movement means configured for moving the coil and the die in the first movement direction, this movement being performed such that the relative speed between the section and the coil and die is nil.
  • This allows the local deformation to occur as if the section was immobile, which is especially advantageous for producing deformations the axis of which is parallel to the second movement direction such as, for example, vertical grooves or deformations.
  • the method can comprise a phase for moving the second movement means in the transverse direction according to a third movement direction perpendicular to the first movement direction and parallel to the plane of advance of the section.
  • the method can comprise a phase for moving the third movement means in the transverse direction according to a third movement direction perpendicular to the first movement direction and parallel to the plane of advance of the section.
  • the method can comprise a phase of positioning an additional die according to the second movement direction, such that the coil and the additional die are facing one another and separated a second gap allowing the section to pass between the coil and the additional die according to the first movement direction, and in that the electromagnetic impulse in the coil is capable of producing a second local deformation in the section.
  • Local deformations can thus be produced in two different areas of the section, for example producing deformations in the two vertical flanges of a U section.
  • the additional die can have a contact surface the geometry of which coincides with the second local deformation to be obtained in the section.
  • the method can comprise a phase of positioning an additional coil according to the second movement direction, such that the additional coil and the additional die are facing one another and separated the second gap allowing the section to pass between the coil and the additional die according to the first movement direction, and in that the electromagnetic impulse in the coil is capable of producing the second local deformation in the section.
  • the electromagnetic impulse produced in the additional coil can be synchronized with the electromagnetic impulse produced in the electromagnetic coil.
  • the present invention relates to a device and a method for the continuous electromagnetic shaping of open sections.
  • the electromagnetic shaping method is fast enough to allow forming local deformations on the section without the need for an absence of relative movement between the section and the shaping device. It also allows not excessively increasing the length of the continuous profiling line, thereby preventing excessively large facilities.
  • the cost of the shaping device of the invention is less than the cost of a conventional facility for forming local deformations on the section.
  • Figure 1 shows a shaping device according to an embodiment of the present invention.
  • the open section (1) could obviously have any other configuration, for example H or T configuration.
  • the device of the invention comprises an electromagnetic coil (3) assembled on second movement means (4) which can move the coil according to the vertical direction and a die (5) assembled on third movement means (6) which can also be moved according to the vertical direction, such that the electromagnetic coil (3) and the die (5) face one another separated a first gap allowing the section (1) to move between the electromagnetic coil (3) and the die (5).
  • This first gap will be a gap allowing the electromagnetic impulse produced by the electromagnetic coil (3) to produce a local deformation on the section (1), the local deformation corresponding with the geometry of the die (5).
  • the electromagnetic impulse is synchronized with the movement of the section (1) for producing the local deformation in the suitable position. This synchronized operation is performed by means of control means which have not been depicted in Figure 1 .
  • Figure 1 depicts an embodiment in which the coil is housed inside the section and the die is arranged on the outer part of the section, such that a local deformation such as that observed for example in Figure 5a , i.e., a local deformation producing an outward embossment of the section (1) according to the shape of the die (5) can be obtained.
  • a local deformation such as that observed for example in Figure 5a , i.e., a local deformation producing an outward embossment of the section (1) according to the shape of the die (5) can be obtained.
  • the electromagnetic coil (3) can be arranged on the outer part of the section (1), whereas the die (5) would be housed inside the section (1).
  • a local deformation can thus be obtained by producing, for example, an inward embossment of the section (1), as depicted in Figure 5b .
  • the electromagnetic coil (3) can act alternatively on any of the two vertical flanges of the U section.
  • the second movement means (4) can perform a movement in the transverse direction with respect to the direction of advance (first movement direction) of the section (1).
  • the third movement means can also perform a movement in the transverse direction with respect to the direction of advance for facing the electromagnetic coil (3).
  • the transverse movement of the second movement means (4) also allows the device to form local deformations in a section (1) having a variable cross-section such as that observed for example in Figure 7 .
  • a section of the section (1) having a larger cross-section than on the right side of the figure has been depicted.
  • the die (5) remains fixed (i.e., without transverse movement), whereas the electromagnetic coil (3) is moved in the transverse direction for approaching the section and producing the local deformation in collaboration with the die (5).
  • the electromagnetic coil remains immobile with respect to the transverse direction, the die (5) being what performs the transverse movement for coming closer to the section (1), allowing the electromagnetic impulse to produce the local deformation on the section (1).
  • Figure 6 depicts an electromagnetic coil (3) housed inside the section (1) and a die (5) outside the section.
  • the die (5) could be housed inside the section (1) and the coil could be arranged on the outer part of the section (1), in which case the transverse movement of the die (5) and of the electromagnetic coil (3) would be opposite that mentioned in the previous case.
  • the second and third movement means can move the electromagnetic coil (3) and the die (5) in a first movement direction which is the movement direction of the section (1), such that the relative speed between the coil and die and the section is cancelled out.
  • Local deformations in the section (1) the axis of which is parallel to the movement direction of the section (1), for example, longitudinal grooves, can thus be formed.
  • Figures 8 , 9 and 10 depict a shaping device according to an alternative embodiment of the invention comprising an electromagnetic coil (3), a die (5) and a dolly (7).
  • the dolly is assembled on fourth movement means configured for positioning the dolly (7) below the section (1) such that the dolly (7) prevents a movement of the section in the vertical direction during the electromagnetic impulse.
  • the dolly is arranged under the section (1) in correspondence with the position of the electromagnetic coil (3).
  • Figure 9 depicts the electromagnetic coil (3) in the operating position housed inside the section (1), the die (5) and the dolly (7) being far from their working position.
  • Figure 8 depicts the electromagnetic coil (3), the die (5) and the dolly (7) in the operating position, i.e., in the position in which an electromagnetic impulse generated in the electromagnetic coil (3) produces a local deformation in the section (1), preventing the section (1) from being moved downward as a consequence of the electromagnetic impulse itself.
  • the coil located inside the cavity of the open section (1) can perform the simultaneous shaping, such as embossment, grooving, etc., on two sides of the section (1).
  • the device has two dies, one die (5) and an additional die (5'), each of the dies (5)(5') facing each of the sides to be shaped.
  • the device can have two coils, each facing a die, an electromagnetic coil (3) and an additional coil (3').
  • the coils (3)(3') can be located inside and the dies (5)(5') outside the cavity of the section (1) or vice versa.
  • each of the coils forms the embossment or the grooving of one of the sides of the open section, these embossments or groovings being able to be simultaneous or alternating.
  • sections can also be shaped from high-strength structural materials, such as high-strength steels of up to 800 MPa of yield stress and of to 1.35 mm thick.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP09842117A 2009-03-26 2009-03-26 Formvorrichtung und verfahren zum erhalt von lokalen verformungen in offenen profilen Withdrawn EP2415537A4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2009/070075 WO2010109028A1 (es) 2009-03-26 2009-03-26 Dispositivo y método de conformado para la obtención de deformaciones locales en perfiles abiertos

Publications (2)

Publication Number Publication Date
EP2415537A1 true EP2415537A1 (de) 2012-02-08
EP2415537A4 EP2415537A4 (de) 2013-01-30

Family

ID=42780177

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09842117A Withdrawn EP2415537A4 (de) 2009-03-26 2009-03-26 Formvorrichtung und verfahren zum erhalt von lokalen verformungen in offenen profilen

Country Status (2)

Country Link
EP (1) EP2415537A4 (de)
WO (1) WO2010109028A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019077789A1 (ja) * 2017-10-20 2019-04-25 三菱重工業株式会社 電磁成形装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723329B1 (fr) * 1994-08-02 1996-09-13 Inst Francais Du Petrole Methode et dispositif pour fabriquer un tube metallique ondule
DE19802769C1 (de) * 1998-01-26 1999-07-08 Erbsloeh Ag Hohlprofil für die Metallverformung mittels eines Magnetfeldes
DE10011755B4 (de) 2000-03-13 2005-05-25 Peter Prof. Dr.-Ing. Dipl.-Wirtsch.-Ing. Groche Verfahren und Vorrichtung zur Herstellung eines Profils mit über der Längsachse veränderlichem Querschnitt mittels Walzprofilieren
DE10050012C2 (de) * 2000-10-06 2002-09-26 Schuler Pressen Gmbh & Co Verfahren und Vorrichtung zum Schneiden von Blechen
SE521076C2 (sv) 2000-11-29 2003-09-30 Ortic Ab Rullformningsmaskin med flyttbara formningsstationer
US6751994B2 (en) * 2002-05-28 2004-06-22 Magna International Inc. Method and apparatus for forming a structural member
TWI289083B (en) * 2005-12-29 2007-11-01 Metal Ind Res & Dev Ct Hybrid forming device for sheet metal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019077789A1 (ja) * 2017-10-20 2019-04-25 三菱重工業株式会社 電磁成形装置
JP2019076913A (ja) * 2017-10-20 2019-05-23 三菱重工業株式会社 電磁成形装置

Also Published As

Publication number Publication date
EP2415537A4 (de) 2013-01-30
WO2010109028A1 (es) 2010-09-30

Similar Documents

Publication Publication Date Title
US8459076B2 (en) Method and device for producing closed profiles
US10160031B2 (en) Method of forming a closed cross-sectional structure
KR101533739B1 (ko) 다기능 절곡 장치
EP2801419A1 (de) Sicherungsscheibe
EP3150295B1 (de) Maschine und verfahren zur halbkontinuierlichen kaltbiegung von abschnitten mit geringer duktilität
JP6050382B2 (ja) 殻形部品の絞り加工動作の間に下部領域およびフレーム領域で切断が行われる深絞り加工する装置および方法
AU720868B2 (en) Method of producing a metal section
US20180021829A1 (en) Formed metal item including tubular part with slit, method for producing the same, and producing device and die assembly used in method for producing the same
US20180133774A1 (en) System and method for bending metal including tandem press brakes
JP6404022B2 (ja) アンダーカット処理機構
EP2415537A1 (de) Formvorrichtung und verfahren zum erhalt von lokalen verformungen in offenen profilen
NO320135B1 (no) Fremgangsmate til fremstilling av et profil med ulik veggtykkelse
KR101554566B1 (ko) 다기능 절곡기의 복합 금형 장치
US11097326B2 (en) Method for producing open-seam pipes from sheet metal panels
US20170028455A1 (en) Press forming method, and method for manufacturing press-formed part
US9327331B2 (en) Hemming a flange with compression to form a sharp edge
US11338348B2 (en) Method and apparatus for double-sided incremental flanging
JP2013000801A (ja) 金属薄板を打ち抜き、歪みを取るための方法並びにそのための工具
PL1781430T3 (pl) Sposób i urządzenie do wytwarzania zespawanego szwem wzdłużnym pustego w środku profilu
KR101854146B1 (ko) 방화문용 패널 절곡 장치의 블레이드 신축 구동장치
EP3856430B1 (de) Mehrachsige walze mit einem zylinder mit abgestuftem durchmesser
RU2451570C9 (ru) Способ изготовления переменно-гофрированных элементов
KR20080039518A (ko) 링형상부재의 제조방법
US10525523B2 (en) Method and device for forging a workpiece in bar form
RU2739057C1 (ru) Способ изготовления П-образных изделий штамповкой из листа, например передней панели двери домашнего холодильника

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20111026

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20130107

RIC1 Information provided on ipc code assigned before grant

Ipc: B21D 35/00 20060101ALI20121224BHEP

Ipc: B21D 5/08 20060101ALI20121224BHEP

Ipc: B21D 26/14 20060101AFI20121224BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20151001