Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
  • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
• • 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
  • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
  • B23K26/20—Bonding
  • B23K26/21—Bonding by welding
  • B23K26/24—Seam welding
  • B23K26/244—Overlap seam welding
• • 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
  • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
  • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
  • B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
  • B62D25/06—Fixed roofs

Definitions

• the present invention relates to a method of assembling a motor vehicle roof.
• This invention also relates to the means associated with this method, and more particularly to a device for docking a motor vehicle roof on a body side.
• Fixing the flag on a side of a motor vehicle requires a connection with a regular game, almost zero, when the flag is laser welded for example. It is indeed to promote the assembly on the one hand, and to offer the customer on the other hand an irreproachable exterior visual appearance.
• a pressing means which extends continuously over the entire length of the flag. This means is used to press the horn and hold it in position when welding on the body side.
• a disadvantage of this type of embodiment is that it does not compensate for all docking faults encountered. These defects, and by way of example of the corrugations, are not always the same on the roof or on the body side, and are not constant for the same element between the front and the rear of the vehicle.
• One of the objectives of the invention is therefore to propose a method of assembly and associated means that allow assembly of the flag. According to constraints that are invariably found in the various car manufacturers, the present invention is also inexpensive.
• the invention proposes a method of assembling a motor vehicle roof characterized in that it has at least the following steps:
• the flag is set up with respect to at least one side of the box, and pressing means, independently linked to at least one reference support, are brought opposite the flag; in a second step, a force is applied to at least one pressing means so that it generates a transverse and / or vertical pressure force on the roof;
• each pressing means is immobilized relative to the support frame, as soon as the desired position or force is obtained;
• the flag is made integral with the body side.
• the flag is lowered in contact with at least one side of the body.
• the flag is brought to a theoretical geometric position.
• a force is applied to at least one pressing means for controlling this pressing means in position.
• a force is applied to at least one pressing means for controlling this pressing means with effort.
• a first force is applied to at least one first pressing means for controlling this first pressing means in effort and a second force is applied substantially simultaneously on at least one second pressing means for controlling the second pressing means in position.
• the invention also aims to protect a docking device of a motor vehicle roof on a body side, of the type comprising a reference support which extends over the roof, and means for applying to the roof a clean pressure to flatten this flag on the body side, characterized in that the device comprises a plurality of pressure means linked to the reference support and independent of each other, so that different pressures can be applied at different points of the flag.
• the pressing means are positioned against an external face of the reference support.
• - Locking means are provided to immobilize in position the pressing means against the reference support.
• the locking means are manual, in particular by screwing.
• the locking means are automatic and comprise a non-return mechanism associated with the hydraulic or pneumatic pressurization system.
• the pressing means is advantageously formed of a heat-absorbing material.
• an abutment means is arranged at the end of at least one pressing means, such that this abutment extends substantially transversely relative to the pressing means, a first surface of the abutment means being in permanent contact with the flag while than a second surface of the medium stopper comes into contact with the body side when the roof has descended by a value corresponding to this outcropping coast.
• FIG. 1 is a front view of the means according to a first embodiment of the invention
• FIG. 2 is a side view of a means shown in Figure 2;
• FIG. 3 is a front view of the means according to a second embodiment of the invention.
• FIG. 4 is a side view of a means shown in Figure 3;
• a reference support 2 is disposed over a major part of the length of the horn 3.
• Various pressing means 4 are arranged against this reference support, these pressing means 4 being independent of one another and being able to move vertically and / or transversely along the outer face 20 of the reference support 2.
• these pressing means 4 must generate an at least vertical force on the roof 3 to create a continuous contact surface with the body side.
• the pressing means 4 being positioned against the external face 20 of the reference support 2, this face 20 may have a shape inclined in a transverse and vertical plane.
• a force exerted on the top of one of the pressing means 4 allows a displacement of the pressing means 4 both transversely and vertically, towards the body side 6 when the pressing means 4 is resting on the roof 3.
• the external face 20 of the reference support 2 can also be vertical and thus generate a vertical displacement only of the pressing means 4.
• the outer face of the pressing means may have an inclined shape to allow the passage welding robots.
• Blocking means 8 are provided to immobilize in position the pressing means 4 against the reference support. According to a procedure shown for example in Figures 3 and 4, the locking means 8 can be manual for the use of the method and associated means for small series vehicles. In these cases, when each pressing means 4 has applied the desired force to the horn 3, an operator immobilizes the pressing means 4 on the horn reference frame 3 by screwing.
• the locking means 8 may be automatic and include as an example a non-return mechanism associated with the hydraulic or pneumatic pressurization system.
• This type of mechanism with non-return ratchets for example, will be advantageously used for applications of this process to large series.
• a low pressure can be ensured on the flag 3 by a servo 4.
• a low pressure can be ensured on the roof 3 by a servocontrol in force of the pressing means 4.
• this multitude of pressing means 4 allows to apply to the same flag 3 a position control and a pressure control, according to the areas of the flag 3. For example, each corner of the flag 3 can be slaved in position by relative to the body side 6, because these four berths are the most exposed to users, while the rest of the flag 3 is slaved in pressure.
• the pressing means 4 is advantageously formed of a heat-absorbing material.
• This type of material during a laser welding operation makes it possible to absorb the heat generated by the welding operation of the horn 3 on the body side 6. The horn 3 then does not absorb this heat and this prevents the flag 3 from being deformed.
• an abutment means 12 is arranged at the end of at least one pressing means 4, so that this abutment extends substantially transversely with respect to the pressing means 4.
• the presence of this abutment makes it possible to guarantee a vertical outcropping coast Z between the horn 3 and the body side 6, a first surface 14 of the abutment means 12 being in permanent contact with the horn 3 while a second surface 16 of the abutment means 12 comes into contact with the body side 6 when the flag 3 is lowered by a value corresponding to this outcropping coast Z.
• this outcropping coast Z can be modified by changing the dimensions of the abutment means 12, and in particular the distance between the two planes respectively containing the first and second bearing surfaces 16 mentioned above.
• the abutment means 12 is positioned on one of the pressing means 4, and has a shape such that the passage of the welding bead is not impeded by this abutment means.
• a stop means is positioned on each pressing means 4 located at the end of all, and has a semicircle shape that clears the passage of the welding bead.
• the assembly method of the flag 3 has at least the following steps.
• the flag 3 is first put in place relative to the cash side 6. It will be understood that, without departing from the context of the invention, this flag
• Each pressing means 4 is immobilized relative to the support frame, as soon as the desired position or effort is obtained. It is then performed a brazing operation to bind the flag 3 to the cash side 6.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Optics & Photonics (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Plasma & Fusion (AREA)
• Manufacturing & Machinery (AREA)
• Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
• Automatic Assembly (AREA)

Applications Claiming Priority (2)

Publications (1)

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Cited By (1)

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• 2005
  • 2005-02-04 FR FR0550336A patent/FR2881711B1/fr not_active Expired - Fee Related
• 2006
  • 2006-02-06 WO PCT/FR2006/050103 patent/WO2006082349A1/fr active Application Filing
  • 2006-02-06 EP EP06709482A patent/EP1846192A1/de not_active Withdrawn
  • 2006-02-06 JP JP2007553674A patent/JP4864012B2/ja not_active Expired - Fee Related

Non-Patent Citations (1)

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