WO2008154982A1 - Dispositif et procédé d'assemblage d'éléments par collage - Google Patents

Dispositif et procédé d'assemblage d'éléments par collage Download PDF

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Publication number
WO2008154982A1
WO2008154982A1 PCT/EP2008/003434 EP2008003434W WO2008154982A1 WO 2008154982 A1 WO2008154982 A1 WO 2008154982A1 EP 2008003434 W EP2008003434 W EP 2008003434W WO 2008154982 A1 WO2008154982 A1 WO 2008154982A1
Authority
WO
WIPO (PCT)
Prior art keywords
components
joining
adhesive
joining surface
component
Prior art date
Application number
PCT/EP2008/003434
Other languages
German (de)
English (en)
Inventor
Hermann Sedlmaier
Kai-Uwe Knöner
Christian Aichhorn
Marc MÜLLER
Original Assignee
Bayerische Motoren Werke Aktiengesellschaft
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 Bayerische Motoren Werke Aktiengesellschaft filed Critical Bayerische Motoren Werke Aktiengesellschaft
Publication of WO2008154982A1 publication Critical patent/WO2008154982A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • B29C65/46—Joining a heated non plastics element to a plastics element heated by induction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00—Gripping heads and other end effectors
    • B25J15/0052—Gripping heads and other end effectors multiple gripper units or multiple end effectors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B29C65/7847—Holding or clamping means for handling purposes using vacuum to hold at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • B29C66/7428—Transition metals or their alloys
    • B29C66/74283—Iron or alloys of iron, e.g. steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/863—Robotised, e.g. mounted on a robot arm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
    • B29K2305/08—Transition metals
    • B29K2305/12—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2307/00—Use of elements other than metals as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3011—Roof linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
    • F16B11/006—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by gluing

Definitions

  • the invention relates to a device and a method for joining components by means of gluing and in particular the joining of components made of different materials.
  • CfK roof modules often have a weight of less than half of corresponding modules made of steel, so that the total weight of the body and in particular their center of gravity can be noticeably lowered. Due to the excellent stiffness values of carbon fiber reinforced plastic components, the use of a CfK roof module also makes it possible to increase the torsional rigidity of the vehicle bodywork frequently.
  • the problem with the use of different materials for the body of a motor vehicle is the joining of different materials. While components made of the same materials, in particular by welding in a quick and cost-effective manner can be joined, this joining method is generally not applicable to different materials to be joined.
  • the riveting to connect components made of carbon fiber reinforced plastic with a residual body is currently not applied. Due to the poor ductility of the fiber-reinforced plastic is a use of the Stanznietvons in which the required in one or both joining partners through hole is created by the introduction of the rivet, not applicable. However, insertion of the through-holes prior to riveting is associated with uneconomically high processing costs and - due to the subsequent drilling of the holes - at the corresponding point with damage to the carbon-fiber reinforcing fibers embedded in the plastic matrix. This would be accompanied by a structural weakening of the CfK component.
  • thermosetting adhesive systems Through the use of thermosetting adhesive systems, the time to reach a handling strength can be significantly reduced.
  • the components to be joined are joined with a one-component, thermosetting adhesive and placed in a heating room to cure the adhesive, where it hardens at temperatures above 200 0 C.
  • Thermosetting adhesive systems are not suitable for joining already painted components of a vehicle body, since the coating of the components would be damaged by the high temperatures that are required for the curing of the adhesive system.
  • the invention is therefore based on the object to provide a method and an apparatus which at least one of the prior art reduced known disadvantages.
  • the time required for the joining of components by gluing should be significantly reduced.
  • the essence of the invention provides for two components to be adhesively bonded in the region of a joining surface in which the components touch, and for the acceleration of the adhesive curing to be (only) introduced into a partial region of heat.
  • a sufficient handling strength can be achieved in a short time, which allows further processing of the joined components;
  • the fact that the heat is introduced only into a partial region of the joining surface prevents a negative influence on the entire bond due to the heat input.
  • sub-area As a sub-area is understood according to the invention a part of the total area. It is not necessary for the subregion to be a contiguous region; Rather, a plurality of individual (sub) areas are to be understood as a subarea.
  • the method according to the invention thus comprises the joining of two components, wherein an adhesive is applied to at least one joining surface of one of the components and the components are pressed against one another in the region of the joining surface, and the introduction of heat into a partial region of the joining surface for local acceleration of the adhesive curing.
  • An apparatus according to the invention for joining the components has means for applying an adhesive to at least one joining surface of one of the components, means for compressing the components in the region of the joining component. surface and means for introducing heat energy in a portion of the joint surface.
  • a choice as to the size of the portion into which the thermal energy is applied may depend on a variety of factors. Often it may be sufficient even with larger components, such as a roof module for a vehicle body, only at certain points (for example, 10 to 13) points to accelerate the curing of the adhesive by local heat input. Since a sufficient handling strength can be achieved by the local or selective solidification of the adhesive bond, the body can already be further processed, while the adhesive hardens on the remaining areas of the joint surface without active heat input. A due to the heating, possibly negative influence on the adhesive bond occurs only selectively by the joining method according to the invention, this is thus, based on the total adhesive bond, negligible. Also can be avoided by the selective heat input damage to the painted residual body.
  • the method according to the invention thus enables an advantageous joining of components made of different materials, in which the use of many conventional joining methods (for example welding) can not be used.
  • the cycle time in which the components are joined until reaching a handling strength can be significantly reduced, so that the bonding of components for the medium and large-scale production of a vehicle body is economical.
  • the method according to the invention can particularly preferably be used for joining painted components, since in this case the use of thermosetting adhesive systems, as already described, is not meaningfully possible.
  • the adhesive and / or at least one of the components in the region of the joining surface is at least partially electrically conductive. This makes it possible to effect the heat inputs by inducing eddy currents in the electroconductive component (s). In ferromagnetic materials, heat input can also be caused by the hysteresis losses associated with an alternating magnetic field.
  • the induction of eddy currents in electrically conductive components has the particular advantages that the heat input achieved thereby can be targeted and fast, so that in particular an influence of adjacent, not intended for heating areas can be kept low.
  • the device according to the invention preferably has means for generating a changing magnetic field.
  • a voltage is induced in the electrically conductive component (s), which in turn generates an eddy current.
  • the generation of an eddy current is possible even in a non-temporally changing magnetic field.
  • a coil may be used which is part of an electrical oscillating circuit. The current flowing through a coil generates a magnetic field in a known manner. The integration of the coil in an electrical resonant circuit, which is characterized by a periodic change in the current flow, thus leading to a time-varying magnetic field.
  • the means for introducing heat energy are designed to be movable.
  • the device can be adapted to different geometries of components to be joined, with the smallest possible distance between the means for introducing the thermal energy and the partial area of the joining surface to be heated so that unwanted heating of adjacent partial areas can be prevented as far as possible ,
  • the device according to the invention further comprises a holding device for at least one of the components.
  • the holding device may have a plurality of spacer elements which serve to image the geometry of the component. In this way, it can be effectively prevented that the component fixed by means of the holding device is deformed during the fixation.
  • one, several or all of the spacer elements is adjustable, so that the holding device can be adapted to different geometries of components.
  • the / the components in the holding device may preferably be provided one or more negative pressure holding elements.
  • a gentle fixation of the component is made possible.
  • a clamping fixation which is also possible in principle, however, there is a risk that occur on the fixed component clamping tracks that the Reduce the quality of the component and / or must be removed again in a post-processing step.
  • the vacuum holding element is designed so that it can also generate an overpressure.
  • the pneumatic or hydraulic overpressure can be used to gently push the previously fixed by means of the vacuum-holding member component against the joining partner /.
  • the compression of the joining partners by means of pneumatic or hydraulic overpressure has the advantage over mechanical contact pressure that the pressure on the component is constant over a relatively large area and consequently without significant force peaks. This can also prevent damage to the component.
  • the means for introducing the heat energy into the component are also arranged on the holding device.
  • the means for introducing the heat energy into the component are also arranged on the holding device.
  • the holding device is further arranged on a robot arm, so that in particular the steps
  • the component with its joining surface can also be guided along a stationary adhesive application device, so that an automated adhesive application can take place.
  • a movable and preferably likewise automated adhesive application device can be used.
  • the device according to the invention further comprises means for measuring the components. These can serve to position the components to be joined before pressing against each other in a defined manner.
  • an optical and / or tactile measuring unit is suitable for this purpose.
  • the device according to the invention may have a corresponding cooling device (for example a compressed-air cooling device).
  • Figure 1 a schematic representation of a holding device as part of a device according to the invention for
  • Figure 1 shows a holding device 1 according to the invention, as provided for mounting a CfK roof module 2 on the roof frame 3 of a motor vehicle body 4 made of steel.
  • the holding device 1 has a guided on a robot arm 5 base plate 6. In the edge region of the base plate 6 more functional elements are arranged.
  • spacer elements 7 which are designed to be movable in the vertical direction with respect to the plane defined by the base plate 6. These spacers 7 serve to simulate the contour of the three-dimensional arched roof module 2.
  • a plurality of vacuum-holding elements 8 are provided, which are also designed to be movable perpendicular to the base plate 6.
  • the vacuum-retaining elements 8 serve to temporarily fix the roof module 2 to the holding device 1 so that it can be lifted, transported to a vehicle body 4, aligned and joined there.
  • the vacuum-holding elements 8 each have a suction bell 9 made of elastomeric material, which is moved so far in the direction of the voltage applied to the spacer elements 7 roof module 2 until they rest completely on the roof module 2 and form a closed volume with this. By evacuating the air within this volume, a negative pressure is generated, so that the roof module 2 is fixed to the holding device 1.
  • spot inductors 10 On the base plate 6 of the holding device 1, a plurality of spot inductors 10 (see detail drawing in Figure 4) are further arranged. These serve - after the adhesive application and joining the roof module 2 with the roof frame 3 of the body 4 - the joining area by generation To heat an eddy current in the metallic and consequently electrically conductive roof frame of the body partially.
  • the spot inductors 10 are also formed perpendicular to the base plate 6 of the holding device 1 movable. The eddy current in the electrically conductive roof frame 3 is induced by an alternating magnetic field generated in the spot inductors 10.
  • the holding device furthermore has a movable counter holder 11 in the region of the cowl of the vehicle body.
  • the anvil can be activated before the actual joining process, which surrounds the roof frame 3 of the body 4 in the region of the front cowl.
  • the counter-holder 11 can prevent possible deformation of the roof frame during joining.
  • Another counter-holder (not shown) can additionally be arranged in the region of the rear window frame if required.
  • a process for joining a roof module 2 with a vehicle body 4 by means of the illustrated holding device 1 can proceed as follows.
  • the vehicle bodies 4 are still provided without roof module 2 at a processing station on which a joining device according to the invention is provided. Furthermore, there is provided with the vehicle body to be joined CfK roof module 2 on a receiving table (not shown). The receiving table fixes the roof module in the required, three-dimensional arched geometry.
  • the spacer elements 7 of the holding device 1 are driven so that their contact surfaces depict the contour of the three-dimensional arched roof module 2. Then, the holding device 1 by means of the robot arm 5 in brought and lowered a position above the roof module 2 to be joined until the roof module 2 comes to rest on the contact surfaces of the spacer elements 7. Now the suction cups 9 of the vacuum-holding elements 8 are moved in the direction of the roof module 2, until they also come to rest on the surface of the roof module 2. By evacuating the air in the suction cups 9, the roof module 2 is fixed to the holding device 1. The roof module 2 is then lifted by means of the holding device 1 and moved along those surfaces which are intended for joining to the body 4 along a stationary adhesive application device (not shown), wherein a cold-curing adhesive system is applied.
  • the roof module 2 is moved from the holding device 1 to a position above the vehicle body 4, there exactly aligned and finally brought into contact with the roof frame 3.
  • an overpressure is then generated, which presses the roof module 2 against the roof frame 3 and thus generates the required contact force for joining.
  • the spot inductors 10 are moved so far that they are in a defined coupling distance to the surface of the roof module 2.
  • an eddy current is respectively generated in the electrically conductive roof frame 3 of the vehicle body 4 at the respective locations, whereby the respective sections of the roof frame 3 are locally heated.
  • the local heating of the roof frame 3, which also transfers to the adhesive and the roof module 2 in the adjacent area, ensures rapid curing of the adhesive; However, this is limited to the immediately adjacent to the spot inductors 10 areas. In the areas of the joint surface in which no spot-inducers 10 are provided, there is no acceleration of the adhesive curing by active heat input. Rather, the adhesive cures in these areas in an optionally lasting several hours hardening process at room temperature.
  • the selective curing due to the local heat input ensures sufficient handling strength of the vehicle body 4, so that it can be further processed with the joined roof module 2 after a short time.
  • FIG. 5 shows an embodiment of a spot inductor 10 ', which surrounds the joining flange (contact point of a roof module 2' and of a roof frame 3 ') on both sides.
  • the spot inductor 10 ' is additionally movable in the lateral direction.
  • the two-sided encompassing of the joining flange by the spot inductor 10 ' allows a better efficiency in the induction of an eddy current.
  • the power of the alternating magnetic field can be reduced while maintaining the same heating power in the joining flange. This allows a better limitation of the area of the joining flange to be heated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Robotics (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

Selon le procédé d'assemblage d'éléments, un adhésif est appliqué sur au moins une surface d'assemblage de l'un des éléments, et les éléments sont pressés les uns contre les autres dans la zone de la surface d'assemblage. Dans des zones partielles de la surface d'assemblage, de la chaleur est alors appliquée pour accélérer le durcissement de l'adhésif.
PCT/EP2008/003434 2007-06-19 2008-04-28 Dispositif et procédé d'assemblage d'éléments par collage WO2008154982A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007028581.9 2007-06-19
DE200710028581 DE102007028581A1 (de) 2007-06-19 2007-06-19 Vorrichtung und Verfahren zum Fügen von Bauteilen mittels Klebens

Publications (1)

Publication Number Publication Date
WO2008154982A1 true WO2008154982A1 (fr) 2008-12-24

Family

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Application Number Title Priority Date Filing Date
PCT/EP2008/003434 WO2008154982A1 (fr) 2007-06-19 2008-04-28 Dispositif et procédé d'assemblage d'éléments par collage

Country Status (2)

Country Link
DE (1) DE102007028581A1 (fr)
WO (1) WO2008154982A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010028171A1 (de) * 2010-04-26 2011-10-27 Bayerische Motoren Werke Aktiengesellschaft Verfahren zum Fügen von Bauteilen
DE102013019146A1 (de) * 2013-11-15 2015-05-21 Audi Ag Verfahren zur Herstellung eines aus mehreren Lagen bestehenden Fasergeleges, sowie Greifvorrichtung zur Durchführung des Verfahrens
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