EP2543451B1 - Dispositif d'assemblage de pièces usinées - Google Patents

Dispositif d'assemblage de pièces usinées Download PDF

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Publication number
EP2543451B1
EP2543451B1 EP20120173031 EP12173031A EP2543451B1 EP 2543451 B1 EP2543451 B1 EP 2543451B1 EP 20120173031 EP20120173031 EP 20120173031 EP 12173031 A EP12173031 A EP 12173031A EP 2543451 B1 EP2543451 B1 EP 2543451B1
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EP
European Patent Office
Prior art keywords
workpiece
tool
contour
radiation source
radiation
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.)
Active
Application number
EP20120173031
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German (de)
English (en)
Other versions
EP2543451A1 (fr
Inventor
Jean Pierre Prof. Dr. Bergmann
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.)
Jenoptik Automatisierungstechnik GmbH
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Jenoptik Automatisierungstechnik GmbH
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Publication date
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Publication of EP2543451A1 publication Critical patent/EP2543451A1/fr
Application granted granted Critical
Publication of EP2543451B1 publication Critical patent/EP2543451B1/fr
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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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/03—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of sheet metal otherwise than by folding
    • B21D39/031—Joining superposed plates by locally deforming without slitting or piercing
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/16—Heating or cooling

Definitions

  • the invention relates to a device for joining workpieces according to the preamble of claim 1, as this generic from the DE 10 2004 062 896 B4 is known.
  • the workpieces have a coating, for example aluminum coatings on press-hardened workpieces, residues of the coatings can remain distributed in the weld seam and influence the fatigue strength.
  • a coating for example aluminum coatings on press-hardened workpieces
  • the forming is thermally supported, that is, the workpieces are before forming.
  • sufficient energy is present in the materials to induce deformation-induced dislocation movements and to allow plastic deformation without brittle fracture occurring.
  • a structural change at temperatures up to 900 ° C is considered to be non-harmful.
  • two or more metal workpieces are positively connected with each other by being thermally assisted over a forming area.
  • at least two tools are available, which can be pressed against each other with a compressive force.
  • the workpieces adjoin one another in a forming plane between the tools and are irradiated with an electromagnetic radiation from a laser light source in such a way that a thermal activation or heating of the workpieces over the forming area is achieved.
  • the electromagnetic radiation is directed by a transparent material for the electromagnetic radiation in at least one of the tools on the forming area.
  • a disadvantage of this solution is that within the tool, a passage or opening must be present to accommodate the transparent material for the electromagnetic radiation. This is the production of the Tool complicated and costly. In addition, the strength of the tool is adversely affected and the size of a focal spot, in which the electromagnetic radiation is imaged in the forming plane on a workpiece, can not be easily adapted to changing requirements of the joining process.
  • the tools are associated with electrodes. If the tools are brought into contact with the workpieces to be joined, a current can flow in the workpieces over approximately the forming region between the electrodes and through the electrically conductive workpieces. As a result of the current flow, the forming area is heated.
  • the tools are designed to accommodate the electrodes and their electrical insulation complicated and weakened in their strength.
  • a radiation source emitting radiation source can be arranged next to the tools.
  • the tools used are rollers by means of which a flat workpiece can be formed into a profile without cutting.
  • the radiation source for example, a laser radiation is directed into a focal spot on the surface of the workpiece.
  • the focal spot is generated in an area of a roll inlet, that is to say before the actual forming area, as a result of which undesired heat losses occur.
  • the invention has for its object to provide a device with easy to produce tools that can be easily adapted to changing requirements of the joining process.
  • the object is achieved by a device for joining a first workpiece and a second workpiece according to claim 1, wherein the device has a first tool, having a first contour, and a second tool, having a second contour. Between the tools, the first workpiece and the second workpiece can be arranged one above the other in a forming plane. The first contour and the second contour can be pressed against each other via a forming area.
  • the device has at least one radiation source for providing electromagnetic radiation which serves to heat the workpieces between the tools.
  • the device according to the invention is characterized in that at least one respective radiation source is arranged laterally of the tools such that their electromagnetic radiation is respectively directed to the workpiece facing the radiation source and into the deformation region.
  • Each of the radiation sources is formed by at least one direct-radiating diode emitter. In this case, each radiation source is formed by annularly arranged around the tool direct radiating diode emitter.
  • the one or more diode emitters may be arranged in a module. There may also be an optical system by means of which the electromagnetic radiation of each of the radiation sources is influenced, for example focused and directed.
  • the radiation sources are advantageously connected to a controller, by means of the parameters of the electromagnetic radiation emitted by the radiation sources, for. B. emission duration and intensity are controllable.
  • the at least one diode emitter of a radiation source is preferably arranged such that a focal spot is formed in the deformation region by the electromagnetic radiation emitted by the radiation source and directed onto the deformation region.
  • the radiation source is preferably arranged such that the electromagnetic radiation is directed from a tool-side direction into the forming plane and into the forming area.
  • the radiation source is arranged near and adjacent to the forming area facing side of the tools.
  • these are directed from an area near and adjacent to the side of each tool in the forming area, which faces the forming area.
  • first workpiece and a second workpiece between the first tool, having a first contour, and the second tool, having a second contour are superimposed in the forming plane so that they touch each other via a forming area.
  • the electromagnetic radiation is directed over the forming area on each outwardly facing side of the workpieces and the forming area on the side of each workpiece is simultaneously exposed to the electromagnetic radiation.
  • the first contour and the second contour are pressed against each other, so that the workpieces are formed over the heated forming area corresponding to the first contour and the second contour.
  • Electromagnetic radiation can be all radiations that are suitable for heating the materials to be formed.
  • the electromagnetic radiation is preferably a laser radiation.
  • direct-radiating diodes or diode emitters has the advantage that the emitted radiation can be directed into the deformation area without major absorption and scattering losses and an energy-efficient heating of the workpieces can take place.
  • tools without apertures or similar radiation-transmissive devices can be used.
  • a focal spot in the forming plane can be easily controlled and corrected in terms of its size, shape, position and (spatial / temporal) intensity distribution.
  • the aforementioned parameters are, for example, to adapt to the material, the material thickness, etc. of the workpieces to be reshaped or corrected during a series of forming operations.
  • the first tool 5 and the second tool 6 are movable in an advancing direction 11 or counter to the feed direction 11 and undeliverable.
  • the first contour 5.1 and the second contour 6.1 are each in a direction perpendicular to Feed direction 11 extending end face of the first tool 5 and the second tool 6 as mutually complementary elevations and depressions available.
  • the first contour 5.1 and the second contour 6.1 can be brought into direct contact with one another by delivering the first tool 5 and the second tool 6 in a forming plane 3.
  • a first workpiece 1 and a second workpiece 2 are superimposed and movable along a transport direction 10. Mounts of the workpieces 1, 2 and means for transporting the workpieces 1, 2 in the transport direction 10 are not shown.
  • a forming region 4 of the first tool 5 and the second tool 6 is by the extension of the first contour 5.1 and second contour 6.1 given in the forming plane 3.
  • the first contour 5.1 is formed as a survey and the second contour 6.1 as a depression, wherein the dimensions of the survey a depression of existing in the forming area 4 material of a first workpiece 1 and a second workpiece 2 in the recess of the second contour 6.1 allowed (not shown).
  • a die is formed.
  • the radiation source 7 is formed by a direct-radiating diode emitter.
  • the electromagnetic radiation is directed along each beam path (shown schematically) in each case in a radiation direction 8 to each workpiece 1 or 2, which faces the respective radiation source 7.
  • the electromagnetic radiation is directed in each case in the forming plane 3 and in the forming region 4, so that on those surfaces of the workpieces 1 and 2, which face the respective radiation sources 7, the electromagnetic radiation in each focal spot 9 (see Fig. 2 ) is shown. Size and shape as well as the energy distribution over the focal spot 9 are selected so that the first workpiece 1 and the second workpiece 2 are heated via the forming region 4.
  • the radiation sources 7 are controllable with respect to the parameters of the emitted electromagnetic radiation, such as emission duration and intensity.
  • first contour 5.1 and the second contour 6.1 shaped differently, z. B. rounded, widening at the bottom (eg for clinching) or conical, be. There may also be more than two workpieces in the forming plane 3.
  • the radiation source 7 arranged next to the first tool 5 is designed as a module consisting of a plurality of directly emitting diode emitters.
  • the diode emitters are preceded by an optical system 12, by means of which the electromagnetic radiation emitted by the diode emitters is focused, guided along the radiation direction 8 and imaged in a focal spot 9 on the surface of the first workpiece 1.
  • the module is connected to a controller 13.
  • the radiation sources 7 are each arranged laterally of the tools 5, 6, the emitted electromagnetic radiation of which is reproduced in a common focal spot 9 on the surface of the first workpiece 1 or of the second workpiece 2.
  • the radiation sources 7 can each also be designed as a module consisting of a plurality of directly emitting diode emitters, to which an optic 12 is arranged upstream.
  • the radiation sources 7 can be controlled individually via the controller 13.
  • Fig. 4 an embodiment of the device according to the invention is shown, in which the radiation source 7 is formed by ring-shaped around a tool 5, 6 arranged directly radiating diode emitter (shown very schematically). Shown is, merely by way of example, a view in the feed direction 11 on the first contour 5.1 of the first tool 5 and on the radiation source. 7
  • the radiation sources 7 on both sides of the forming plane 3 similar. z. B. as in Fig. 1 or in Fig. 2 shown, or be different. So can those in the FIGS. 1 and 2 be shown combined in a device. There may also be other numbers of radiation sources 7 on one side of the forming plane 3, which in turn may be the same or different.
  • a first workpiece 1 and a second workpiece 2 are placed one above the other in the forming plane 3 and held there.
  • the first workpiece 1 points upward, the second workpiece 2 points downward.
  • the two workpieces 1 and 2 are set up so that an area over which the two workpieces 1 and 2 are to be reshaped coincides with the forming area 4.
  • the radiation sources 7 are switched on and the electromagnetic radiation is directed in each case into the forming plane 3 and into the forming region 4, as a result of which the first workpiece 1 and the second workpiece 2 are heated via the forming region 4.
  • the radiation sources 7 are turned off and the upper tool 5 and the lower tool 6 along the feed direction 11 moves toward each other until the material of the two workpieces 1 and 2 on the forming region 4 through the first contour 5.1 is pressed into the second contour 6.1.
  • the first workpiece 1 and the second workpiece 2 are plastically deformed over the forming area 4.
  • the upper tool 5 and the lower tool 6 along the feed direction 11 are separated again and the workpieces 1 and 2 along a transport direction 10 in the forming plane 3 shifted so far until the next Area over which the first workpiece 1 and the second workpiece 2 are to be reshaped comes to rest in the forming area 4.
  • the device according to the invention can be used in the technological fields of joining technology, for. B. in the body shop, are applied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Laser Beam Processing (AREA)

Claims (2)

  1. Dispositif d'assemblage d'une première pièce usinée (1) et d'une deuxième pièce usinée (2), avec un premier outil (5) ayant un premier contour (5.1) et avec un deuxième outil (6) ayant un deuxième contour (6.1), entre lesquels la première pièce usinée (1) et la deuxième pièce usinée (2) peuvent être disposées l'une au-dessus de l'autre dans un plan de formage (3), dans lequel le premier contour (5.1) et le deuxième contour (6.1) peuvent être pressés l'un contre l'autre par une zone de formage (4), et au moins une source de rayonnement (7) pour fournir un rayonnement électromagnétique pour chauffer les pièces usinées (1, 2) entre les outils (5, 6), caractérisé en ce que
    - au moins une source de rayonnement (7) est disposée à côté de chacun des outils (5, 6) de telle façon que le rayonnement électromagnétique émis par chaque source de rayonnement (7) est dirigé sur la pièce usinée (1, 2) respective orientée vers la source de rayonnement (7) et dans la zone de formage (4) et
    - chacune des sources de rayonnement (7) est constituée d'au moins un émetteur à diode à rayonnement direct, chaque source de rayonnement (7) étant constituée d'émetteurs à diode à rayonnement direct disposés de manière annulaire autour de l'outil (5, 6).
  2. Dispositif selon la revendication 1, caractérisé en ce que,
    au moins un émetteur à diode d'une source de rayonnement (7) est disposé de telle façon qu'une tache focale (9), dont la taille, la forme, la position et l'intensité spatiale/temporelle de distribution peuvent être contrôlées, est générée sur la surface de la pièce usinée (1, 2) orientée vers la source de rayonnement (7), la surface étant située dans la zone de formage (4), par le rayonnement électromagnétique émis par la source de rayonnement (7) et dirigé sur la zone de formage (4).
EP20120173031 2011-07-07 2012-06-21 Dispositif d'assemblage de pièces usinées Active EP2543451B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011051636A DE102011051636A1 (de) 2011-07-07 2011-07-07 Vorrichtung zum Fügen von Werkstücken

Publications (2)

Publication Number Publication Date
EP2543451A1 EP2543451A1 (fr) 2013-01-09
EP2543451B1 true EP2543451B1 (fr) 2014-01-29

Family

ID=46465042

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EP20120173031 Active EP2543451B1 (fr) 2011-07-07 2012-06-21 Dispositif d'assemblage de pièces usinées

Country Status (3)

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EP (1) EP2543451B1 (fr)
DE (1) DE102011051636A1 (fr)
ES (1) ES2457498T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012013750A1 (de) * 2012-06-21 2013-12-24 Johnson Controls Gmbh Verfahren zum Verbinden von zwei Bauteilen
CN110382133B (zh) * 2017-03-03 2022-01-21 尤蒂卡企业公司 用于将压铆螺母固定到先进高强度钢板上的装置和方法以及所得的组件
PL232925B1 (pl) * 2018-06-20 2019-08-30 Politechnika Wroclawska Sposób zwiększania wytrzymałości przetłaczanych złącz punktowych
FR3116452A1 (fr) * 2020-11-25 2022-05-27 Psa Automobiles Sa Dispositif de clinchage d’un empilement de pièces maintenues par l’intermédiaire d’une couche de colle structurale interposée entre les pièces
CN113118309B (zh) * 2021-04-13 2022-07-01 陕西科技大学 一种超薄板材摩擦辅助铆接的方法及装置
DE102021121084A1 (de) * 2021-08-13 2023-02-16 Alpha Laser Gmbh Fügewerkzeugeinheit, Werkzeugzange und Fügevorgang

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US5957933A (en) * 1997-11-28 1999-09-28 Picker International, Inc. Interchangeable guidance devices for C.T. assisted surgery and method of using same
AU5039799A (en) * 1998-07-02 2000-01-24 Armas Ikavalko Fishing device, fishing device kit and method for disinfect fishing devices
US7046711B2 (en) * 1999-06-11 2006-05-16 High Q Laser Production Gmbh High power and high gain saturation diode pumped laser means and diode array pumping device
DE10020679A1 (de) * 2000-04-27 2001-11-08 Basf Coatings Ag Verfahren und Vorrichtung zum Abdichten von Fugen und Nähten in Kraftfahrzeugkarosserien
AT410906B (de) * 2001-02-07 2003-08-25 Schuoecker Dieter Dr Laserunterstütztes profilwalzen
US6684479B2 (en) * 2001-08-22 2004-02-03 General Motors Corporation Method and apparatus for clinching metal sheets
DE102004062896B4 (de) 2004-11-12 2006-09-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren zum formschlüssigen Verbinden von Werkstücken
DE102007005164A1 (de) * 2007-01-29 2008-07-31 Stürmer, Martin, Dr. Ing. Verfahren und Vorrichtung zur Qualitätsüberwachung beim Laserstrahlfügen
DE102007012084A1 (de) * 2007-03-13 2008-09-18 Linde Ag Verfahren zum thermischen Trennen und Fügen
DE102007047469B3 (de) * 2007-09-28 2009-01-22 Jenoptik Automatisierungstechnik Gmbh Verfahren zum spurförmigen Abtragen von dünnen Schichten mittels Laser
DE102008063975A1 (de) * 2008-12-19 2010-07-08 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und Verfahren für das Laserstrahlfügen

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Publication number Publication date
EP2543451A1 (fr) 2013-01-09
ES2457498T3 (es) 2014-04-28
DE102011051636A1 (de) 2013-01-10

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