EP1382402B1 - Dispositif pour la fabrication de tubes à partir de tôles - Google Patents

Dispositif pour la fabrication de tubes à partir de tôles Download PDF

Info

Publication number
EP1382402B1
EP1382402B1 EP03015232A EP03015232A EP1382402B1 EP 1382402 B1 EP1382402 B1 EP 1382402B1 EP 03015232 A EP03015232 A EP 03015232A EP 03015232 A EP03015232 A EP 03015232A EP 1382402 B1 EP1382402 B1 EP 1382402B1
Authority
EP
European Patent Office
Prior art keywords
bending
press
metal sheet
moulding tool
mold
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.)
Expired - Lifetime
Application number
EP03015232A
Other languages
German (de)
English (en)
Other versions
EP1382402A3 (fr
EP1382402A2 (fr
Inventor
Uwe Feldmann
Manfred Kolbe
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.)
SMS Group GmbH
Original Assignee
SMS Meer GmbH
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 SMS Meer GmbH filed Critical SMS Meer GmbH
Publication of EP1382402A2 publication Critical patent/EP1382402A2/fr
Publication of EP1382402A3 publication Critical patent/EP1382402A3/fr
Application granted granted Critical
Publication of EP1382402B1 publication Critical patent/EP1382402B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/01—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments
    • B21D5/015—Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments for making tubes
    • 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
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/0815—Making tubes with welded or soldered seams without continuous longitudinal movement of the sheet during the bending operation

Definitions

  • the invention relates to a device for producing tubes from asymmetrically pre-bent metal sheets according to the progressive shape method.
  • a tube forming press with a bending bar attached to the press upper part, at the foot of which an upper mold is articulated, and a lower press part with a lower mold, wherein the Biegehist with the upper mold for forming process off-center on the pre-bent metal sheet touches.
  • the metal sheet is pre-bent at the longitudinal edges in a first step.
  • the pre-bend is usually done in a separate edge press.
  • the pre-bending of the longitudinal edges takes place so that the tube radius is uniformly formed during deformation to the slot tube in the region of the later seam, where the longitudinal edges of the bent to the tube sheet metal plate abut each other.
  • the pre-bent metal sheet is now subjected to the actual bending process in the tube forming press.
  • the tube forming press consists of a movable upper and lower part. Connected to the upper part of the tube forming press is a vertically arranged bending bar, at the foot of which the upper forming tool is fastened.
  • the lower mold consists in a simple embodiment of two strips, which are arranged at a variable distance from each other in the longitudinal direction. These two strips form the lower abutments for the metal sheet to be deformed.
  • the pre-bent on the longitudinal side plate is inserted in a further step in the tube forming press and then applied by depressing the press top a Blegekraft on the metal sheet, which is under the action of the bending load value and carried by this upper mold sets a deformation of the metal sheet. This procedure is repeated several times until the metal sheet has been formed into a slotted pipe.
  • the time to make a slit pipe thus depends on the number of strokes of the tube forming press, and this in turn on the area that is formed at a stroke. This forming area is determined by the width of the molding tool.
  • the mold attached to the base of the bending load value has a width which is a multiple of the transverse section of the bending load value and has a forming radius which depends on the inner radius of the pipe to be produced.
  • This stamp-like, rounded molding tool sets asymmetrically on the metal sheet in the vertical movement, since this is preformed asymmetrically. This creates a bending moment in the bending rate. So that the bending rate does not buckle under such an asymmetric load, it is designed with a cross-section taking into account this bending moment.
  • the invention is therefore based on the object, a device of the type described above in such a way that a larger area of the metal sheet to be deformed can be bent without increasing the burden of bending load.
  • hinged attachment of the mold at the foot of the bending rate can be achieved that when placing the mold Swinging around the horizontal longitudinal axis is made possible on the metal sheet.
  • Another embodiment provides that in addition the bending bar is hinged to the press upper part.
  • the two-hinged design ensures that no bending moments occur in the sword, apart from caused by the friction in the joints very low moments.
  • the coefficient of friction of the relative movement between the upper mold and the bending rate or the bending rate and the upper part of the press can be influenced by the choice of lubrication and the choice of the sliding pairings.
  • a tube forming press 1 which consists of a press base 2 and a press upper part 3.
  • a bending rate 4 is preferably releasably attached.
  • press upper part 3 On press upper part 3 of the molding press 1 a bending rate 4 is preferably releasably attached.
  • press upper part 3 On press base 2 is a lower mold 5, here consisting of two moldings 6 and 6 ', arranged, while the bending load is provided with an upper mold 8.
  • the upper mold 8 is provided on its underside 9 with a radius which is matched to the inner diameter of the tube to be formed.
  • the upper mold 8 is not rigidly attached to the foot 7 of the bending load value 4, but is - as shown in a first embodiment in Fig. 2 - movably mounted via a joint or a plurality of joints arranged in series 10, the deflection of the upper mold 8 to the longitudinal axis 11 in the direction of arrow 12 or 12 'allow.
  • the pivot point 13 of the joint 10 is to avoid bending moments in the vicinity of the surface 14 one to one Tube to be formed 15. The exact location depends on the criteria to be considered, such as surface pressure, bearing size, etc.
  • the upper mold 7 is brought by both sides of the bending value 4 attached lower spring elements 16 and 16 'in a vertically neutral position.
  • FIG. 3 Another embodiment is shown in Fig. 3.
  • the articulated attachment of the upper mold 7 is here extended by the bending bar 4 is connected at the head 17 by another joint 18 with the press upper part 3, so that a kind of double joint - arrangement is present with a pivoting movement at the top and bottom of the bending rate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Heat Treatment Of Articles (AREA)

Claims (5)

  1. Dispositif de fabrication de tuyaux à partir de plaques de tôle précintrées asymétriquement (15), composé d'une presse de formage de tuyau (1) comportant une lame de cintrage (4) fixée à la partie supérieure de la presse (3) sur le pied de laquelle un outil de formage supérieur (8) s'appuie de manière articulée, et d'une partie inférieure de presse (2) équipée d'un outil de formage inférieur (5), la lame de cintrage (4) reposant asymétriquement avec l'outil de formage supérieur (8) sur la plaque de tôle précintrée (15) pour permettre l'opération de déformation,
    caractérisé en ce que
    l'outil de formage supérieur (8) s'appuie de manière librement mobile et, lorsqu'il est posé sur la plaque de tôle précintrée (15), pivote autour de son axe longitudinal horizontal (11).
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    l'outil de formage supérieur (8) est fixé au pied (7) de la lame de cintrage (4) par des joints à rotule (10) .
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    la lame de cintrage (4) s'appuie par l'extrémité de sa tête (17) par des articulations (18) sur la partie supérieure de la presse (3).
  4. Dispositif selon une des revendications 1 à 3,
    caractérisé en ce que
    l'axe de rotation (13) de l'outil de formage supérieur (8) est prévu à côté de la surface (4) de la plaque de tôle (15).
  5. Dispositif selon une des revendications 1 à 4,
    caractérisé en ce que
    l'outil de formage supérieur (8) et/ou la lame de cintrage (4) sont sollicités par force au niveau de leurs articulations (10, 18).
EP03015232A 2002-07-15 2003-07-05 Dispositif pour la fabrication de tubes à partir de tôles Expired - Lifetime EP1382402B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10232098A DE10232098B4 (de) 2002-07-15 2002-07-15 Vorrichtung zum Herstellen von Rohren aus Blechtafeln
DE10232098 2002-07-15

Publications (3)

Publication Number Publication Date
EP1382402A2 EP1382402A2 (fr) 2004-01-21
EP1382402A3 EP1382402A3 (fr) 2005-03-09
EP1382402B1 true EP1382402B1 (fr) 2006-09-20

Family

ID=29761985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03015232A Expired - Lifetime EP1382402B1 (fr) 2002-07-15 2003-07-05 Dispositif pour la fabrication de tubes à partir de tôles

Country Status (5)

Country Link
US (1) US7004005B2 (fr)
EP (1) EP1382402B1 (fr)
JP (1) JP4002865B2 (fr)
AT (1) ATE340039T1 (fr)
DE (2) DE10232098B4 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007007517U1 (de) * 2007-02-16 2007-08-09 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Presse
WO2009023973A1 (fr) * 2007-08-21 2009-02-26 Soutec Soudronic Ag Procédé et dispositif pour former un tube à partir d'une tôle
DE202008000121U1 (de) * 2008-01-03 2008-04-17 Eisenbau Krämer mbH Blechbiegemaschine
JP5393358B2 (ja) * 2009-09-08 2014-01-22 住友重機械工業株式会社 板曲げプレス
DE102011009660B4 (de) 2011-01-27 2013-05-29 Sms Meer Gmbh Vorrichtung und Verfahren zum Umformen von Flachprodukten in Schlitzrohre oder Rohrvorprodukte
DE102011007396A1 (de) 2011-04-14 2012-10-18 Ing. Erich Pfeiffer Gmbh Austragkopf für eine Tube und Tube mit Austragkopf
DE102011053676B4 (de) 2011-09-16 2016-09-08 EISENBAU KRäMER GMBH Rohrbiegemaschine
KR101712885B1 (ko) * 2012-08-09 2017-03-07 제이에프이 스틸 가부시키가이샤 강관의 제조 방법
JP5541432B1 (ja) * 2013-05-24 2014-07-09 Ｊｆｅスチール株式会社 鋼管の製造方法
WO2014192091A1 (fr) * 2013-05-29 2014-12-04 Ｊｆｅスチール株式会社 Procédé de fabrication de tuyau en acier soudé
JP6262166B2 (ja) * 2014-03-31 2018-01-17 Ｊｆｅスチール株式会社 ベンディングプレス成形用金型
DE102014116192A1 (de) 2014-11-06 2016-05-12 Siempelkamp Maschinen- Und Anlagenbau Gmbh Rohrbiegepresse
CN106238520A (zh) * 2016-08-31 2016-12-21 陈富强 焊带折弯机的改进折弯块
DE102016219706A1 (de) 2016-10-11 2018-04-12 Sms Group Gmbh Formpresse mit Biegeschwert
BR112019018762B1 (pt) 2017-03-15 2023-12-12 Jfe Steel Corporation Molde de prensa e método para fabricar tubo de aço
CN107855382A (zh) * 2017-11-27 2018-03-30 安徽东海机床制造有限公司 一种圆形工件的折弯加工方法
CN107803412A (zh) * 2017-11-27 2018-03-16 安徽东海机床制造有限公司 一种框式折弯机及其应用
CN108580621A (zh) * 2018-06-04 2018-09-28 北京京诚之星科技开发有限公司 一种波纹板模压起弧机
JP6791397B2 (ja) 2018-09-14 2020-11-25 Ｊｆｅスチール株式会社 鋼管の製造方法及びプレス金型
CN112404164A (zh) * 2020-11-10 2021-02-26 上海宝冶集团有限公司 方管压制成形的工艺方法
CN112872130B (zh) * 2021-01-19 2023-05-05 安徽泓鞍机械制造有限公司 一种工业用钢管折弯装置

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US2763924A (en) * 1953-12-29 1956-09-25 Bellometti Ugo Process and apparatus for manufacturing tubes, tanks and hollow bodies generally from metal in sheet or band form
DE1183465B (de) * 1962-02-01 1964-12-17 Siempelkamp Gmbh & Co Biegewerkzeug zum Herstellen von zylindrischen oder konischen Rohren aus ebenen Blechzuschnitten
FI45165C (fi) * 1970-07-21 1972-04-10 Fiskars Ab Oy Alasinjärjestely taontakoneissa koneen alustaan kohdistuvien iskujen v aimentamiseksi.
DE2218419C2 (de) * 1972-04-13 1973-10-25 Mannesmann-Meer Ag, 4050 Moenchengladbach Biegepresse, insbesondere fur eine Anlage zum Herstellen von Groß rohren
DE2402190C3 (de) * 1974-01-17 1978-03-02 Mitsubishi Jukogyo K.K., Tokio Vorrichtung zum Biegen von Stahlblechen bzw. -platten
JPS5841621A (ja) * 1981-09-07 1983-03-10 Mitsubishi Heavy Ind Ltd ポンチヘツドの姿勢保持方法
JPS59199116A (ja) * 1983-04-28 1984-11-12 Nippon Kokan Kk <Nkk> Ｕｏｅ造管法に使用するｕプレス用パンチ装置
JPS59209425A (ja) * 1983-05-12 1984-11-28 Nippon Kokan Kk <Nkk> Ｕｏｅ鋼管製造プロセス用ｕプレス工具
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JP2001252722A (ja) * 2000-03-09 2001-09-18 Sumitomo Metal Ind Ltd Ｕプレス工具およびｕｏｅ鋼管の製造法

Also Published As

Publication number Publication date
US7004005B2 (en) 2006-02-28
US20040055356A1 (en) 2004-03-25
DE50305093D1 (de) 2006-11-02
DE10232098B4 (de) 2004-05-06
JP2004082219A (ja) 2004-03-18
DE10232098A1 (de) 2004-02-05
EP1382402A3 (fr) 2005-03-09
JP4002865B2 (ja) 2007-11-07
ATE340039T1 (de) 2006-10-15
EP1382402A2 (fr) 2004-01-21

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