EP1879707B1 - Führungs- und verformungssystem - Google Patents

Führungs- und verformungssystem Download PDF

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Publication number
EP1879707B1
EP1879707B1 EP06742332A EP06742332A EP1879707B1 EP 1879707 B1 EP1879707 B1 EP 1879707B1 EP 06742332 A EP06742332 A EP 06742332A EP 06742332 A EP06742332 A EP 06742332A EP 1879707 B1 EP1879707 B1 EP 1879707B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
guiding
rollers
welding
edges
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
Application number
EP06742332A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1879707A1 (de
Inventor
Manfred Hartmann
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.)
Wuppermann Edelstahltechnik GmbH
Original Assignee
Wuppermann Edelstahltechnik 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 Wuppermann Edelstahltechnik GmbH filed Critical Wuppermann Edelstahltechnik GmbH
Priority to PL06742332T priority Critical patent/PL1879707T3/pl
Publication of EP1879707A1 publication Critical patent/EP1879707A1/de
Application granted granted Critical
Publication of EP1879707B1 publication Critical patent/EP1879707B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B21D5/10—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 for making tubes
    • B21D5/12—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 for making tubes making use of forming-rollers

Definitions

  • the invention relates to a guide and deformation system for producing welded pipes of metallic strip material, in which the band edges (seam) is closed, for example by means of a laser or by high-frequency technology, a method for producing welded pipes and the use of the guiding and deformation system for the production of welded pipes.
  • From the DE 101 31 461 C1 is a system for joining and longitudinal welding of bent sheets or the like pipes known.
  • the sheets or tubes are mounted on rollers.
  • the EP 0 919 299 A2 relates to a device for removing a weld superelevation.
  • US 5,461,896 A1 describes a guide and deformation system for producing welded tubes from a metallic strip material workpiece.
  • the workpiece is guided in a feed direction by the guiding and deformation system, wherein a plurality of roller pairs arranged one behind the other in the feed direction for increasing cold deformation and curvature of the edges of the workpiece engage them and so the shape of a tube with an open longitudinal slot form.
  • the longitudinal slot is closed by welding by means of a welding device.
  • the guide and deformation system is modular, with in a production change modules, which are adapted to the first pipe diameter, in a simple way available modules adapted for the second pipe diameter.
  • Object of the present invention is therefore an apparatus for welding pipes of metallic strip material, in which a popping of the pipes is avoided.
  • the weld should be carried out so that virtually no inhomogeneities occur.
  • the design of the new device should be so simple that it is easy to use.
  • welding can be carried out with all conventional methods for closing strip edges (seams) in metallic materials.
  • tungsten inert gas welding (TIG welding) and laser welding are mentioned.
  • TIG welding in the profiling machine forms the flat strip into the tube.
  • an arc burns in a protective gas jacket of inert gas (argon-helium-hydrogen-germanic or pure argon) between a non-consumable tungsten cathode and the strip edges.
  • inert gas argon-helium-hydrogen-germanic or pure argon
  • cathode burners are used, depending on the application is working with DC or AC (company publication of the company Dreistern-Werk Maschinenbau GmbH & Co. KG).
  • the most important advantage of laser welding is the excellent seam quality.
  • the welding speed is usually higher than with TIG welding.
  • the heat influence of the tube material is much lower than in TIG welding.
  • a highly focused light beam of non-divergent light is directed to the weld.
  • the light beam is created in an optical resonator consisting of two mirrors and two parallel RF electrodes.
  • the total energy of the laser is concentrated to a point of about 0.25 mm. This results in an extreme energy density of over 3 million W / cm 2 .
  • a steam channel with ionized metal gas is formed at the weld.
  • the temperature is around 25,000 ° C. Around the steam channel forms a melting zone.
  • the sheet-metal strip formed into the tube is moved under the laser beam. This forms a continuous weld (company publication of the company Dreistern-Werk Maschinenbau GmbH & Co. KG).
  • the pre-formed in a known manner of metallic strip material pipe with open edges is introduced into the guiding and deformation system according to the invention, in which the still open edges are closed with a known welding device.
  • metallic strip materials are metal strips (coils) made of stainless steel, sheet metal, copper and brass, preferably called stainless steel.
  • the tube is supported according to the invention between two arranged in the feed direction behind the welding device floating side rollers until cooling.
  • a preferred embodiment of the present invention is characterized in that the floating side rollers are self-centering for the tube.
  • the self-centering can be achieved by a conical shape of the inner surface of the side rollers.
  • the workpiece is supported by floating side rollers until cooling.
  • cooling preferably takes place up to a temperature in the range of about room temperature.
  • all guide and upsetting rollers of the workpiece during cold working before welding can be adjusted depending on the diameter of the formed tube by a central height adjustment and a central lateral adjustment.
  • the height and lateral adjustment according to the invention can take place by mechanical or electronic devices in a manner known per se,
  • the compression rollers for adjustment via levers are connected to an eccentric disc.
  • Another particular embodiment of the present invention relates to the adjustment of the tube formed into a slot tube for insertion into the welding device.
  • the adjustment of the welding device to the edges of the still open tube can be done mechanically.
  • the adjustment of the welding device takes place to the edges of the still open tube by an optical tape edge detection system.
  • the position of the welding torch to the open edges is controlled according to the invention via the optical tape recognition system.
  • Optical tape edge detection systems are known per se.
  • a method for the production of welded tubes from metallic strip material characterized in that the initially flat strip material is cold-formed into a tube in a plurality of forming stations one behind the other in the conveying direction by the edges of the strip material by upsetting and guide rollers more and more bent and curved toward each other, wherein the slot located between the edges in the further course of the advance and the deformation is reduced and finally closed and welded, the workpiece in the pitch variable star-shaped adjustable and the compression rollers are also each individually height adjustable and eccentrically adjustable against each other ,
  • the strip edges can be precisely held against each other and calibrated, even if uneven material thicknesses or material geometries are welded together.
  • the contact pressures can be controlled separately per compression roll and controlled electronically, so that as well as irregularities in the bandwidths with resulting deviating basic cross-section of the tubes to be formed are automatically eliminated. Furthermore, this gives the possibility to optimize the forces on each edge of the workpiece or wall thickness until an optimal melting process, regardless of which welding technology, takes place.
  • the subject matter of the present invention is also the use of a guiding or deformation system for producing welded pipes of metallic strip material.
  • the present invention can be achieved by the FIGS. 1 to 3 be explained.
  • FIG. 1 shows the guide or deformation system according to the invention from the side.
  • FIG. 1 shows the guide or deformation system according to the invention of the input (1) of the slot tube (12) from which by the welding device (3) the opening is closed.
  • the not yet cooled pipe is supported by the floating side rollers (4) until it cools down. After cooling, the tube is transported in the feed direction through the outlet (2) out.
  • the slit pipe is compressed by the lower compression roller (9) and the right and left compression roller (10). Due to the central height adjustment, the upsetting rollers (9 and 10) and the welding device (3) are adjusted as a function of the diameter of the tube.
  • the height adjustment (8) of the welding device (3) is controlled via the optical strip edge detection system (7) as a function of the respective position of the strip edges.
  • the lateral guidance of the pipe can be adjusted via a central side adjustment (6).
  • FIG. 2 shows the guide or deformation system according to the invention from the entrance (1) of the slot tube (12) from (front view).
  • the slotted tube (12) is compressed by the compression rollers (9 and 10) and the open edges by means of the Schwelßvorraum (3) closed.
  • the right and left compression rollers (10) can be adjusted together with the welding device (3) via the central height adjustment (5). Fine adjustment of the compression rollers (10) is possible via the eccentric adjustment (14) via the levers (15).
  • the lower compression roller (9) remains constant. If necessary, the height and height of the left and right upset rolls (10) can be adjusted separately via the adjustment (13).
  • FIG. 3 shows the guide or deformation system according to the invention from above.
  • FIG. 3 shows the guide or deformation system according to the invention with the input (1) of the slot tube whose edges are closed by the welding device (3).
  • the not yet cooled pipe is supported by the floating side rollers (4) until it cools down. After cooling, the tube is transported in the feed direction through the outlet (2) out.
  • the right and left upper compression rollers can be adjusted.
  • the guide of the slot tube (12) can be adjusted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Laser Beam Processing (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Circuits Of Receivers In General (AREA)
  • Golf Clubs (AREA)
  • Escalators And Moving Walkways (AREA)
EP06742332A 2005-05-13 2006-05-11 Führungs- und verformungssystem Not-in-force EP1879707B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06742332T PL1879707T3 (pl) 2005-05-13 2006-05-11 System prowadzenia i kształtowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005022244A DE102005022244B4 (de) 2005-05-13 2005-05-13 Führungs- und Verformungssystem, dessen Verwendung sowie Verfahren zur Herstellung von geschweißten Rohren
PCT/DE2006/000824 WO2006119755A1 (de) 2005-05-13 2006-05-11 Führungs- und verformungssystem

Publications (2)

Publication Number Publication Date
EP1879707A1 EP1879707A1 (de) 2008-01-23
EP1879707B1 true EP1879707B1 (de) 2009-04-22

Family

ID=36764722

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06742332A Not-in-force EP1879707B1 (de) 2005-05-13 2006-05-11 Führungs- und verformungssystem

Country Status (8)

Country Link
US (1) US8829384B2 (es)
EP (1) EP1879707B1 (es)
JP (1) JP2008540132A (es)
AT (1) ATE429294T1 (es)
DE (3) DE102005022244B4 (es)
ES (1) ES2326191T3 (es)
PL (1) PL1879707T3 (es)
WO (1) WO2006119755A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2011267770B2 (en) * 2010-06-18 2017-02-02 The University Of Queensland Method and apparatus for forming the profile of deformable materials
CN102513654B (zh) * 2011-12-30 2013-11-20 大连三高集团有限公司 冷弯成型在线自动焊接装置
CN103978283B (zh) * 2014-05-22 2016-01-06 无锡华联科技集团有限公司 杆件焊接机焊缝伺服跟踪机构
CN107081540A (zh) * 2016-02-15 2017-08-22 佛山市中牌机械有限公司 真空氮气保护装置
CN106975924B (zh) * 2017-03-30 2019-02-19 深圳大学 一种电机直伸机壳卷圆与焊接设备
CN109702392B (zh) * 2019-01-17 2024-02-13 无锡市阳通机械设备有限公司 组立机控制***
CN112719658B (zh) * 2020-12-04 2022-05-13 芜湖市元山机械制造有限公司 一种管梁卷焊设备及其工艺

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Also Published As

Publication number Publication date
US20090277879A1 (en) 2009-11-12
ATE429294T1 (de) 2009-05-15
DE502006003541D1 (de) 2009-06-04
DE102005022244A1 (de) 2006-11-16
WO2006119755A1 (de) 2006-11-16
DE102005022244B4 (de) 2007-07-19
WO2006119755A8 (de) 2007-05-18
EP1879707A1 (de) 2008-01-23
US8829384B2 (en) 2014-09-09
JP2008540132A (ja) 2008-11-20
ES2326191T3 (es) 2009-10-02
PL1879707T3 (pl) 2009-12-31
DE112006002037A5 (de) 2008-04-30

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