EP1316371B1 - Dispositif de soudage pour tubes - Google Patents

Dispositif de soudage pour tubes Download PDF

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Publication number
EP1316371B1
EP1316371B1 EP02020105A EP02020105A EP1316371B1 EP 1316371 B1 EP1316371 B1 EP 1316371B1 EP 02020105 A EP02020105 A EP 02020105A EP 02020105 A EP02020105 A EP 02020105A EP 1316371 B1 EP1316371 B1 EP 1316371B1
Authority
EP
European Patent Office
Prior art keywords
stand
bearing block
welding device
pipe welding
pipe
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
EP02020105A
Other languages
German (de)
English (en)
Other versions
EP1316371A3 (fr
EP1316371A2 (fr
Inventor
Bernhard Heimann
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 EP1316371A2 publication Critical patent/EP1316371A2/fr
Publication of EP1316371A3 publication Critical patent/EP1316371A3/fr
Application granted granted Critical
Publication of EP1316371B1 publication Critical patent/EP1316371B1/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
    • 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
    • B21C37/0822—Guiding or aligning the edges of the bent sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
    • B21B2031/026—Transverse shifting the stand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/22—Aligning on rolling axis, e.g. of roll calibers

Definitions

  • the invention relates to a pipe welding apparatus according to the features of the preamble of claim 1, with which a tube formed from a flat metal strip is welded to the resulting seam, which has a side closing stand comprising at least two rolls, each partially forming the metal strip formed to the pipe and in that the side closure framework comprises: a base frame, a stator on which a roller is rotatably mounted, the stator being slidably mounted on the base frame transversely to the longitudinal axis of the tube, and a bearing block on which a roller is rotatably mounted the bearing block on the stand is also arranged displaceably transversely to the longitudinal axis of the tube.
  • a pipe welding device is characterized by JP 60231526 A known.
  • welded tubes with diameters of up to approx. 600 mm are preferably manufactured continuously from an endless strip.
  • the tape is divided to the required width, wound into coils and fed to a tube welding machine.
  • the tape joints of the individual coils are welded together during operation and using so-called tape storage.
  • the flat strip is formed after entering the pipe welding system, first by means of form scaffolds or by Linealformreheatn stepwise or continuously to form a round slotted tube.
  • the molded tube then passes through a welding unit in which the strip edges are heated at the seam to welding temperature and welded together by compression. In a subsequent operation, beads and ridges of the weld are removed inside the tube and externally.
  • the tube After passing through a cooling section, the tube is then rolled in one or more stands (caliber stands) to an exact diameter. In a final operation, the pipe is then divided by a follower separator in individual lengths. The individual tubes are collected and fed to their further destination.
  • stands caliber stands
  • Welded pipes are used for a wide variety of purposes.
  • One part is further processed, for example, to water pipes.
  • the pipes are hot-dip galvanized inside and outside. There are no high demands on the diameter tolerances on these pipes. It is not even necessary here to remove the inner ridge.
  • the DE 32 12 365 C2 shows an arrangement of three rollers, with which the tube formed from the metal strip is guided almost over the entire circumference.
  • the lower two rollers are inclined here, the upper roller is formed divided.
  • the resulting from the upper roller two rolling discs can be pivoted to each other by an adjustable angle.
  • the width of the center groove between the two discs of the upper roller can be adjusted continuously in dependence on the wall thickness of the molded tube.
  • the invention is therefore based on the object, a pipe welding device of the type mentioned so that it is possible to produce pipes with narrow diameter tolerances and so to dispense with a downstream drawing process. This should reduce the cost of producing such pipes.
  • a threaded spindle For simultaneous and opposite displacement is preferably a threaded spindle.
  • This has, according to a development, a first portion which is rotatably and axially fixedly mounted in the base frame. Furthermore, it may have a second portion which is provided with a first thread which communicates with a fixedly arranged in the stator threaded nut. Furthermore, a third section of the threaded spindle can be provided, which has a second thread, which is in communication with a fixed nut in the bearing block.
  • One of the threads preferably has a right-hand thread and the other has a left-hand thread; If preferably the pitches of both threads are the same size, it can be ensured that the means, in particular the threaded spindle, the roller arranged on the stand and the roller arranged on the bearing block are always adjusted symmetrically.
  • the two rollers of the side closer can thus be opened and closed by a single spindle, always maintaining an equal distance from the tube longitudinal axis.
  • a compact design is achieved when the stand has a U-shaped configuration.
  • one of the rollers can be arranged in the region of a first U-leg;
  • the bearing block can be supported in the area of the other U-leg.
  • linear guides are advantageously arranged.
  • Backlash of the system can be achieved in particular by the fact that between the stand and bearing block, an elastic element is arranged, which exerts a force on the stand and bracket, which presses apart the stand and the bearing block in the direction of displacement.
  • This elastic element is preferably a helical spring.
  • a motor for displacement of the stand and bearing block, a motor can be provided which actuates the displacement means (threaded spindle)
  • Fig. 1 is shown schematically how a formed from a flat metal strip tube 1 is produced.
  • the flat metal strip runs in the direction of the longitudinal axis 8 of the tube 1 and is formed in upstream stations to the tube 1.
  • Fig. 1 the state is sketched, as it arises shortly before the welding process:
  • the tube 1 is held and guided by two rollers 4 and 5, which are referred to as side-closing.
  • the rollers 4 and 5 rotate about vertically arranged axes 10 and 11. Due to their contour, the rollers 4, 5 comprise the tube 1 each over a peripheral portion of almost 180 °. Above is the seam 2, where the tube 1 is welded together.
  • the tube 1 is guided as accurately as possible and so that the longitudinal axis 8 lies in the theoretical center plane XX.
  • the two rollers 4 and 5 relative to each other and with respect to the center plane XX in the displacement directions A and B symmetrically delivered or adjusted.
  • the Figures 2 and 3 show the construction concept of a side closing stand 3, in which the rollers 4 and 5 are mounted.
  • the side closer frame 3 has in this embodiment a fixedly arranged base frame 6.
  • a stand 7 is slidably disposed on the base frame 6, a stand 7 is slidably disposed.
  • play-free linear guides 22 are provided between the base frame 6 and stand. With these, the stand 7 can be moved in the direction of displacement A on the base frame 6.
  • the roller 4 is set with respect to the center plane XX of the tube 1.
  • the stator 7 has - viewed in the direction of the longitudinal axis 8 of the tube 1 - a U-shaped contour.
  • the bearing of the roller 4 is arranged on a leg 20 of the "U".
  • a bearing block 9 is supported on the other leg 21 of the "U” in the horizontal direction.
  • the bearing block 9 is slidably mounted on the stand 7.
  • 9 play-free linear guides 23 are provided between stand 7 and bearing block.
  • the displacement direction B in which the bearing block can move relative to the stator 7 and thus also with respect to the center plane X-X of the tube 1, is basically oriented in opposite directions to the displacement direction A.
  • the threaded spindle 12 has a first portion 13 which is arranged with a fixed bearing 27 in a carrier 26; the spindle 12 is thus rotatable but axially fixed in the carrier 26.
  • the carrier 26 is fixedly connected to the base frame 6; Base frame 6 and support 26 thus form a functional unit.
  • the threaded spindle 12 further includes a second portion 14 and a third portion 17.
  • the second section 14 is provided with a first thread 15, the third section 17 with a second thread 18.
  • the threads 15 and 18 cooperate with respective threaded nuts 16 and 19, respectively.
  • the one thread nut 16 is fixedly arranged in the stator 7, the other nut 19 fixed in the bearing block 9.
  • the spindle 12 is driven by a motor 25 driven.
  • Fig. 4 is indicated by the displacement directions A and B, that here is a distance between the two elements 7 and 9 from each other.
  • the entire side closer framework 3 is (see. Fig. 3 ) designed so that thereby stand 7 and bearing block 9 and with them the rollers 4 and 5 move symmetrically to the center plane XX.
  • Fig. 5 illustrated construction of a side closing frame 103 and the base frame 107 receiving the rollers 107 with base in a horizontal plane and transverse to the longitudinal axis of the tube.
  • the base frame 106 is arranged displaceably on a horizontal guide 28 of a guide bed 29 here. The shift of the base frame 106 and thus the two rollers 4,5 together in one direction can be made manually by means of an adjusting spindle 30.
  • the proposed means 12 or 28,30 to the shift here keeps the rollers 4 and 5, regardless of the adjustment always exactly on the tube center (XX).
  • the prerequisite is created to manufacture precision tubes without high production costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (15)

  1. Dispositif de soudage de tubes à l'aide duquel on soude un tube (1) formé à partir d'un feuillard métallique plan sur la jonction (2) résultante, comportant une ossature de fermeture latérale (3,103) comprenant au moins deux cylindres (4, 5) entourant chacun partiellement le feuillard métallique formé en tube (1) et l'ossature de fermeture latérale (3,103) présentant :
    un cadre de base (6,106), un montant (7,107), sur lequel un cylindre(4) est disposé de façon rotative, le montant (7,107) étant disposé sur le cadre de base (6,106) de sorte à être déplaçable (A) à la transversale de l'axe longitudinal (8) du tube (1) et un support de palier (9), sur lequel un cylindre (5) est disposé de sorte à être déplaçable en rotation, le support de palier (9) étant disposé sur le montant (7,107), également de sorte à être déplaçable (B) à la transversale de l'axe longitudinal (8) du tube (1), caractérisé en ce que,
    entre le cadre de base (6,106), le montant (7,107) et le support de palier (9), sont disposés des moyens (12) permettant un déplacement (A, B) simultané et à contresens du montant (7,107) ou support de palier (9) par rapport au cadre de base (6,106).
  2. Dispositif de soudage de tubes selon la revendication 1, caractérisé par
    une broche filetée (12) en tant que moyen de déplacement.
  3. Dispositif de soudage de tubes selon la revendication 2,
    caractérisé en ce que,
    avec un premier tronçon (13), la broche filetée (12) est logée de sorte à être rotative et fixe en direction axiale dans le cadre de base (6,106).
  4. Dispositif de soudage de tubes selon la revendication 2 ou 3, caractérisé en ce que,
    sur un deuxième tronçon (14), la broche filetée (12) présente un premier filetage (15), qui est en liaison avec un écrou fileté (16) disposé de façon fixe dans le montant (7,107).
  5. Dispositif de soudage de tubes selon l'une quelconque des revendications 2 à 4, caractérisé en ce que,
    sur un troisième tronçon (17), la broche filetée (12) comporte un deuxième filetage (18), qui est en liaison avec un écrou fileté (19) disposé de façon fixe dans le support de palier (9).
  6. Dispositif de soudage de tubes selon la revendication 4 et 5,
    caractérisé en ce que,
    l'un des deux filetages (15, 18) est un filetage à droite et l'autre est un filetage à gauche.
  7. Dispositif de soudage de tubes selon la revendication 6,
    caractérisé en ce que,
    les pas des deux filetages (15,18) sont de même dimension.
  8. Dispositif de soudage de tubes selon l'une quelconque des revendications 1 à 7, caractérisé en ce que,
    les moyens (12) maintiennent le cylindre (4) disposé sur le montant (7,107) et le cylindre (5) disposé sur le support de palier (9) toujours de façon symétrique à un plan (X-X), qui est perpendiculaire à la direction de déplacement (A, B) du montant (7,107) et du support de palier (9) et qui comporte l'axe longitudinal (8) du tube (1).
  9. Dispositif de soudage de tubes selon l'une quelconque des revendications 1 à 8, caractérisé en ce que,
    le montant (7,107) a une conformation en forme de U.
  10. Dispositif de soudage de tubes selon la revendication 9, caractérisé en ce que,
    un cylindre (4) est disposé dans la région d'une première branche du U (20).
  11. Dispositif de soudage de tubes selon la revendication 9 ou 10, caractérisé en ce que,
    le support de palier (9) s'appuie dans la région de la deuxième branche du U (21).
  12. Dispositif de soudage de tubes selon l'une quelconque des revendications 1 à 11, caractérisé en ce que,
    entre le cadre de base (6,106) et le montant (7,107), ainsi qu'entre le montant (7,107) et le support de palier (9) sont disposés des guidages linéaires (22, 23) à faible jeu, de préférence sans jeu.
  13. Dispositif de soudage de tubes selon l'une quelconque des revendications 1 à 12, caractérisé en ce que,
    entre le montant (7,107) et le support de palier (9) est disposé un élément élastique (24) qui exerce sur le montant (7,107) et sur le support de palier (9) une force qui écarte les montants (7,107) et le support de palier (9) en direction de déplacement (A, B).
  14. Dispositif de soudage de tubes selon la revendication 13,
    caractérisé en ce que,
    l'élément élastique (24) est un ressort cylindrique.
  15. Dispositif de soudage de tubes selon l'une quelconque des revendications 5 à 14, caractérisé en ce que,
    les moyens (12) pour le déplacement (A, B) du montant (7,107) ou support de palier (9) sont entraînés par un moteur (25).
EP02020105A 2001-11-28 2002-09-07 Dispositif de soudage pour tubes Expired - Lifetime EP1316371B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10158338 2001-11-28
DE10158338A DE10158338C2 (de) 2001-11-28 2001-11-28 Rohrschweißvorrichtung

Publications (3)

Publication Number Publication Date
EP1316371A2 EP1316371A2 (fr) 2003-06-04
EP1316371A3 EP1316371A3 (fr) 2004-08-25
EP1316371B1 true EP1316371B1 (fr) 2008-03-19

Family

ID=7707243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020105A Expired - Lifetime EP1316371B1 (fr) 2001-11-28 2002-09-07 Dispositif de soudage pour tubes

Country Status (4)

Country Link
EP (1) EP1316371B1 (fr)
AT (1) ATE389472T1 (fr)
DE (2) DE10158338C2 (fr)
ES (1) ES2300406T3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102581011B (zh) * 2012-02-14 2014-09-17 北京京诚之星科技开发有限公司 二辊立式轧机
CN102581012B (zh) * 2012-02-14 2014-09-17 北京京诚之星科技开发有限公司 组合式二辊连轧机
CN103316951A (zh) * 2013-05-30 2013-09-25 宁波金美亚集团池州钢管制造有限公司 大型钢管
CN104324944B (zh) * 2014-10-28 2016-10-26 太原磬泓机电设备有限公司 具有辊距在线调整功能的二辊无缝钢管轧机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1289814B (fr) * 1969-02-27
US3581041A (en) * 1969-03-28 1971-05-25 Glenn F Balfanz Jr Weld box for tube forming mill
DE1923241A1 (de) * 1969-05-07 1970-11-19 Demag Ag Vorrichtung zum kontinuierlichen Laengsnahtschweissen von Rohren
FR2460745A1 (fr) * 1979-07-06 1981-01-30 Egimot Bloc forgeur pour la fabrication de tubes metalliques
DE3212365C2 (de) * 1982-03-31 1984-06-07 Mannesmann AG, 4000 Düsseldorf Schweißrollenbock für das Hochfrequenzschweißen von Rohren
JPS60231526A (ja) * 1984-05-01 1985-11-18 Nippon Steel Corp 電縫溶接管の成形方法

Also Published As

Publication number Publication date
EP1316371A3 (fr) 2004-08-25
ATE389472T1 (de) 2008-04-15
DE50211912D1 (de) 2008-04-30
DE10158338A1 (de) 2003-06-18
EP1316371A2 (fr) 2003-06-04
ES2300406T3 (es) 2008-06-16
DE10158338C2 (de) 2003-09-25

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