EP1578554A1 - Dispositif de soudage par ondes acoustiques d'un corps cylindrique comme un tuyau pourvu d'un corps en forme de bandes dissipatrices de chaleur - Google Patents

Dispositif de soudage par ondes acoustiques d'un corps cylindrique comme un tuyau pourvu d'un corps en forme de bandes dissipatrices de chaleur

Info

Publication number
EP1578554A1
EP1578554A1 EP03789348A EP03789348A EP1578554A1 EP 1578554 A1 EP1578554 A1 EP 1578554A1 EP 03789348 A EP03789348 A EP 03789348A EP 03789348 A EP03789348 A EP 03789348A EP 1578554 A1 EP1578554 A1 EP 1578554A1
Authority
EP
European Patent Office
Prior art keywords
welding
sonotrode head
sonotrode
welded
heat dissipation
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Withdrawn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
EP03789348A
Other languages
German (de)
English (en)
Inventor
Klaus-Eckhart Dobernecker
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.)
Forschung and Entwicklung Klaus Dobernecker Ing grad
Original Assignee
Forschung and Entwicklung Klaus Dobernecker Ing grad
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
Priority claimed from DE10261561A external-priority patent/DE10261561A1/de
Application filed by Forschung and Entwicklung Klaus Dobernecker Ing grad filed Critical Forschung and Entwicklung Klaus Dobernecker Ing grad
Publication of EP1578554A1 publication Critical patent/EP1578554A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • B23K20/103—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding using a roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/14—Heat exchangers

Definitions

  • the invention relates to a device and a method for welding a cylindrical body, such as a tube, to a plate-shaped body, such as heat-dissipating strips, by means of sound wave welding, and a corresponding use.
  • the object of the present invention is to provide an ultrasonic welding device which achieves excellent welds, in particular between plate-shaped elements and cylindrical bodies. An excellent welding tweaked two cylindrical bodies, especially pipes, should also be possible.
  • the device according to the invention for welding a cylindrical body such as a tube with a plate-shaped element such as heat dissipation strips by means of sound waves, with a rotatable sonotrode generating sound vibrations with a sonotrode head is characterized in that during welding a relative translation movement between the sonotrode head and the body synchronously with a rotary movement of the Sonotrode head runs.
  • BESTATIGUNGSKOPIE This means that when welding by means of the rolling sonotrode head, in particular via the plate-shaped element, that is to say with a corresponding rotational movement of the sonotrode head, with simultaneous relative translational movement between the sonotrode head and the body to be welded, a slip-free and quasi-precise or line-precise and extremely reliable ultrasonic welding can take place.
  • the device has at least one drive wheel for propelling the body to be welded and the drive wheel and the sonotrode head can be driven synchronously by means of a single motor, so that simple and reliable synchronized welding can thereby be accomplished.
  • the device has two drive wheels, which leads to a safe guidance of the body to be welded.
  • the drive wheels can be driven synchronously, so that the accuracy of the propulsion is particularly high.
  • the drive wheels are synchronized via a gear-like device, with the gear-like device making it possible to set the synchronization precisely and easily, for example via the ratios of the individual gear wheels to one another.
  • the drive wheel and the sonotrode head are synchronized via a gear-like device, and in this case, too, an exact and simple setting of the synchronization is possible.
  • the gear-like device has a worm gear, since such a gear has proven to be extremely reliable.
  • the drive wheel can be displaced in the direction of the body in such a way that slip-free propulsion of the body is achieved during welding, in order in this way to further increase the reproducibility of the ultrasonic welding.
  • the displacement can be carried out, for example, by means of a rod guide.
  • the body can be fixed in the longitudinal direction by applying pressure via a hose-like element, while the sonotrode head can be moved translationally along the body, since in this embodiment an inexpensive and extremely reliable fixation of the body to be welded and consequently a high reproducibility of the weld is possible.
  • the hose-like element is a pull actuator.
  • the profile of the sonotrode head is designed in such a way that a body to be welded, in particular elongated, is moved positively during welding to a second body and is thereby deformed and / or free of compression. Due to the forced guidance, a particularly high-quality weld is achieved, since an uncontrolled slipping of the body towards each other is greatly reduced.
  • the profile of the sonotrode head has a recess has, which corresponds to the cross-sectional profile of the body to be welded.
  • the recess is concave, in particular semicircular.
  • Welding of the cylindrical body with the plate-shaped element is in the order of approximately 1000 to several thousand Newtons, the energy density of the ultrasonic waves to be applied, which are to be located in terms of their frequency in the range of approximately 20-40 kHz, in the order of about 1 - 20 J / mm 3 (J corresponds to Ws).
  • J corresponds to Ws.
  • Parts of copper are often welded together, although other suitable metals are also conceivable.
  • 1 shows a sketchy cross-sectional representation of an embodiment of the device according to the invention
  • 2 shows a sketchy cross-sectional representation of a further embodiment of the device according to the invention
  • 3 shows a sketchy cross-sectional illustration of a sonotrode of a device according to the invention.
  • FIG. 1 shows a sketch of a first embodiment of the device according to the invention in cross-section.
  • a motor 6 drives two drive wheels 5 via a shaft 11 via a worm gear 7, which drive a tubular body 1.
  • a gearwheel on the shaft drives a sonotrode 3 with a sonotrode head 4 in synchronous rotation.
  • a plate-shaped element 2 is driven synchronously by exerting a certain force on the sonotrode head 4, ie both plate-shaped element 2 and tubular body 1 move synchronously translationally, while the sonotrode head rotates synchronously for this purpose and at the same time by exposure to ultrasonic energy both parts welded exactly together.
  • FIG. 2 shows a sketch of a second embodiment of the device according to the invention in cross section.
  • the cross section only shows a hose-like pull actuator 8 which is in the non-expanded state (hatching from bottom left to top right) and in the expanded state (hatching from top left to bottom right).
  • a jaw 9 is shifted to the left (since a right jaw 10 is fixed), which then presses on the tubular body 1 via a corresponding receptacle and fixes it.
  • FIG. 3 shows a sketch of a sonotrode of a device according to the invention in cross section. To see in cross section is essentially one
  • Sonotrode 3 which has a sonotrode head 4 at one longitudinal axial end.
  • the sonotrode head 4 is configured in a wheel-like manner such that the profile of the sonotrode head 4 has a semicircular recess 11 when viewed in cross section with respect to the rotating direction of the sonotrode head 4.
  • At least one tube is passed through the special profile of the sonotrode head 4 is welded in a force-centering manner via the recess 12 when the sonotrode head is rotated and appropriate ultrasonic energy is applied and at the same time is conveyed in the process.
  • this configuration it is in particular possible to continuously weld two tubes of any length together.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

L'invention concerne un dispositif de soudage par ondes acoustiques d'un corps cylindrique (1) comme un tuyau pourvu d'un élément (2) en forme de plaque comme des bandes dissipatrices de chaleur. Ce dispositif comprend une sonotrode rotative (3) générant des vibrations acoustiques et dotée d'une tête (4). L'invention est caractérisée en ce que, lors du soudage, un mouvement de translation relative entre la tête de sonotrode (4) et le corps (1) est synchrone à une rotation de la tête de sonotrode (4).
EP03789348A 2002-12-20 2003-12-18 Dispositif de soudage par ondes acoustiques d'un corps cylindrique comme un tuyau pourvu d'un corps en forme de bandes dissipatrices de chaleur Withdrawn EP1578554A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10260907 2002-12-20
DE10260907 2002-12-20
DE10261561A DE10261561A1 (de) 2002-12-20 2002-12-23 Vorrichtung zum mittels Schallwellen Verschweißen eines zylinderförmigen Körpers wie Rohres mit einem plattenförmigen Element wie Wärmeableitstreifen
DE10261561 2002-12-23
PCT/EP2003/014569 WO2004058442A1 (fr) 2002-12-20 2003-12-18 Dispositif de soudage par ondes acoustiques d'un corps cylindrique comme un tuyau pourvu d'un corps en forme de bandes dissipatrices de chaleur

Publications (1)

Publication Number Publication Date
EP1578554A1 true EP1578554A1 (fr) 2005-09-28

Family

ID=32683478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03789348A Withdrawn EP1578554A1 (fr) 2002-12-20 2003-12-18 Dispositif de soudage par ondes acoustiques d'un corps cylindrique comme un tuyau pourvu d'un corps en forme de bandes dissipatrices de chaleur

Country Status (3)

Country Link
EP (1) EP1578554A1 (fr)
AU (1) AU2003293944A1 (fr)
WO (1) WO2004058442A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217957A (en) * 1958-12-12 1965-11-16 Gen Electric Welding apparatus
DE3934062A1 (de) * 1989-10-12 1991-04-18 Branson Ultraschall Werkzeug zum vibrationsschweissen und schneiden
DE4308681A1 (de) * 1992-03-25 1993-09-30 Siemens Ag Verfahren zur Herstellung einer insbesondere langgestreckten Verbundstruktur mit einer Dickschicht aus (Bi,Pb)-Sr-Ca-Cu-O-Supraleitermaterial und nach dem Verfahren hergestellte Verbundstruktur
AT2340U1 (de) * 1997-09-05 1998-08-25 Green One Tec Kanduth Produkti Absorber für solarenergie sowie verfahren und anlage zu seiner herstellung
DE10115181C1 (de) * 2001-03-27 2002-09-12 Stapla Ultraschalltechnik Gmbh Ultraschallschweißanordnung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004058442A1 *

Also Published As

Publication number Publication date
AU2003293944A1 (en) 2004-07-22
WO2004058442A1 (fr) 2004-07-15

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