METHOD FOR ASSEMBLING BODYWORK COMPONENTS COMPRISING A REAR SIDE FENDER LINING OF A MOTOR VEHICLE

Description

[0001] The present invention relates to the field of motor vehicles and more particularly to methods of assembling assemblies or sub-assemblies of bodywork components used in motor vehicles. More specifically, the invention concerns methods of assembling bodywork components that make up a rear side fender liner of a motor vehicle.

[0002] Motor vehicles consist of a body mounted on a rolling base and covered with body panels for its exterior finish. The exterior finish of the body provides the vehicle with its aerodynamics and / or aesthetic design.

[0003] The body comprises a frame onto which the panels are attached. The body frame is composed of structural members, primarily a roof frame superimposed on a subframe. Each structural member is essentially made up of longitudinal members and cross members, and is connected to each other by longitudinal members.

[0004] Thus, the body frame forms a robust assembly of body components that define a rigid vehicle cell. The body frame is also commonly used for anchoring various vehicle accessories, such as those installed inside the vehicle's passenger compartment.

[0005] The body frame is locally reinforced by linings which are mounted on the body in interposition between the body frame and the body panels forming the exterior cladding of the body.

[0006] Liners are composed of various body panels assembled together, primarily by welding. The components of a liner essentially include stiffening profiles for shaped plates, and sometimes specific reinforcements for anchoring these components to the body frame. The profiles and shaped plates of a liner are arranged in various ways and individually shaped according to the liner's specific purpose. The liner is thus configured to provide resistance to stress and / or to locally conform to the overall shape of the body frame, depending on the liner's location on the body.

[0007] Therefore, the question arises concerning the assembly methods for the components of such a lining at an assembly station within a vehicle production line. Typically, such an assembly station comprises several welding stations where the lining components are successively assembled according to a predefined procedure.

[0008] More specifically, regarding the rear side wing liner, it is essentially composed of stiffening profiles and shaped plates that respectively create a gusset and a quarter panel liner. The gusset is configured to attach the wing liner to the roof structure, and the quarter panel liner is configured to attach the wing liner to the underbody structure.

[0009] The gusset comprises at least one shaped plate designed to be fixed to a rear crossmember and a side member of the roof structure. The gusset's shaped plate(s) are reinforced by at least one profile, which can also be used to fix the gusset to the quarter panel lining. The gusset and / or the quarter panel may also be equipped with at least one anchoring device for a vehicle accessory, such as, for example, a rear seat belt retractor.

[0010] The quarter panel liner is used to reinforce a quarter panel forming a rear side wing of the vehicle, which includes a rear wheel arch. The quarter panel liner comprises at least one shaped plate extending the gusset towards the underbody structure. The quarter panel liner is stiffened by at least one profile and is provided with at least one stiffening profile for the rear wing of the vehicle at the edge of the rear wheel arch. The quarter panel liner is also equipped with at least one reinforcement for its attachment to the underbody structure, and optionally, at least one anchoring device for a vehicle accessory, such as, for example, a rear seat installed in the passenger compartment.

[0011] Typically, the quarter panel gusset and the quarter panel liner are manufactured by successively assembling their respective components according to a predefined procedure, at various welding stations grouped within the assembly station assigned to them. The gusset and the quarter panel liner are then joined together at a final welding station, at the exit of which the wing liner is completed.

[0012] Document JP2015196467 discloses a side wing liner comprising a structure of shaped plates and reinforcing profiles. It does not disclose that the profiles form a reinforcement, and the assembly method is not described.

[0013] Document CN204507021 also discloses a side wing lining comprising a structure of shaped plates and two reinforcing profiles that are not supported. Therefore, the profiles do not form a reinforcement.

[0014] Document WO2015037444 discloses a vehicle with a frame of profiles and a rear wing structure of shaped plates whose connection is not clearly described.

[0015] In this context, the invention relates to a method for assembling the components of a rear side wing liner. The invention also relates to an assembly station for assembling components of such a wing liner, organized for implementing a method according to the invention. The invention further relates to said wing liner obtained by a method according to the invention. The invention also relates to a motor vehicle equipped with such a wing liner.

[0016] The general problem that the invention seeks to solve is to improve the methods of obtaining the wing lining, particularly to reduce its production costs. To this end, however, various constraints must be taken into account, and compromises must be sought to reconcile different solutions that satisfactorily address these constraints.

[0017] The procedure for assembling the wing lining components can be designed to reduce the number of operations to be performed, with the advantages of limiting the number of welding stations and the size of the assembly station and / or increasing the production rates of the wing lining.

[0018] However, as previously described, a rear side wing liner is likely to comprise a significant number of components. This complicates the various welding steps required to produce the wing liner. It is important to avoid simplifying the assembly methods of the various wing liner components at the expense of its robustness and / or functionality; therefore, reducing the potential number of components is not desirable.

[0019] Vehicle safety regulations must also be considered, particularly regarding the number of sheet metal panels joined together in a single layer by a single weld point. This affects not only the assembly procedure for the fender liner components, but also the overall organization of the assembly process, in order to limit the number of sheet metal panels joined together by one or more weld points.

[0020] The aims of the present invention fall within the scope of the problem and constraints mentioned above, by way of non-restrictive illustration. In particular, the invention aims to provide a method for assembling the wing lining that allows at least: -) to reduce the production costs of the wing lining and improve its production rates. Specifically, the aim is to limit the number of welding stations, tooling, and / or manipulators required to produce the wing lining. In addition to simplifying the assembly process for the wing lining components, the goal is also to reduce the overall footprint of the assembly station for the wing lining components.-) to optimize the functionalities of the wing lining, in particular with regard to its ability to form a robust component that can be firmly fixed to the body frame and on which exterior vehicle trim panels are intended to be fixed, and / or on which various accessories can be anchored such as accessories installed in the vehicle's passenger compartment, -) to assemble together by welding the components of the wing lining potentially in a large number, subject to a limitation on the number of body elements joined together by at least one weld point to meet the vehicle's safety requirements, .

[0021] The objectives of the present invention are achieved individually or in combination by application of the following provisions.

[0022] The method of the invention is a method for assembling the sheet metal components of a rear side fender liner of a motor vehicle, said components comprising at least stiffening profiles and shaped plates that make up the fender liner to be produced. According to the invention, the method comprises the following operations: -) a first operation carried out at a first welding station, is an operation of assembling together all the profiles that make up the wing lining by forming a frame of profiles, -) a second operation carried out at a second welding station, is an operation of assembling together all the shape plates that make up the wing lining, by forming a structure of shape plates, then -) a third operation carried out at a third welding station, is an operation of assembling together the frame of profiles and the structure of shape plates.

[0023] In other words, all the profiles that make up the wing lining are joined together at the same first welding station, regardless of their specific function and / or their assignment to one or more of the various wing lining plates. All the wing lining plates are joined together at the same second welding station unless at least one profile is specifically designed for joining the other plates. Then, the frame of profiles obtained from the first welding station and the structure of the wing lining plates obtained from the second welding station are joined together at the third welding station, from which the wing lining is produced.

[0024] The number of welding stations equipping the welding station is thus limited to three, requiring a reduced number of tools and / or operators. The operation of forming the profile reinforcement at the first welding station and the operation of forming the plate structure at the second welding station can be carried out simultaneously, or in other words, in parallel, thereby improving production rates.

[0025] The individual configuration and / or number of stiffening profiles and / or shaping plates can be determined to improve the robustness and / or functionality of the wing lining, without affecting the production gain benefits obtained by implementing the process of the invention.

[0026] It should be noted at this stage of the description that a means of recognizing a wing lining within the scope of the invention and obtained by the process as described is its organization into a framework of profiles formed by an assembly of at least two by two of all the stiffening profiles that comprise the wing lining, independently of an assembly of the shape plates.

[0027] According to one embodiment, the first operation includes at least one assembly of a set of profiles jointly forming a component dedicated to stiffening a rear wing of the vehicle at the edge of a wheel arch it includes, at least one connecting profile between at least two shape plates that comprise the wing lining and at least one stiffening profile of at least one of the shape plates.

[0028] According to one embodiment, the second operation includes at least one assembly of at least two shaped plates, or by analogy of at least two groups of shaped plates to be assembled together, forming respectively a quarter panel liner and a gusset arranged in extension of each other and dedicated to the attachment of the wing liner to a body frame of the vehicle.

[0029] In one embodiment, the second operation comprises at least one assembly, to at least one of the formwork plates, of at least one anchoring reinforcement dedicated to anchoring at least one vehicle accessory to the fender liner. Such anchoring reinforcements are typically dedicated to at least partially attaching one or more vehicle accessories to the body frame via the fender liner. Such accessories include, for example, a seat belt retractor and / or a rear seat installed inside the vehicle's passenger compartment. The anchoring reinforcement(s) may be attached to the gusset and / or the quarter panel liner.

[0030] In one embodiment, the second operation comprises at least one assembly to at least one of the form plates of at least one fixing reinforcement dedicated to attaching the fender liner to a subframe that forms part of the vehicle body. Such a fixing reinforcement, potentially made of a material different from that of the form plates, is notably attached to the base of the quarter panel liner during the second operation.

[0031] In one embodiment, the third operation comprises at least one fixing of at least one profile of the profile reinforcement jointly with at least two form plates of the form plate structure previously assembled to each other during the second operation. The third operation may also comprise the fixing of at least one profile individually with a form plate of the form plate structure.

[0032] More specifically, according to one embodiment, the third operation includes fixing at least two shape plates of the shape plate structure, of at least one profile of the frame profiles providing overall stiffening of the wing lining.

[0033] More specifically, the wing lining comprising a gusset extended in a vertical direction by a quarter lining, at least one overall stiffening profile of the wing lining constituting the frame of profiles is jointly fixed on at least one form plate constituting the gusset and on at least one form plate constituting the quarter lining, extending in said vertical direction.

[0034] More specifically, according to one embodiment, the third operation includes fixing said set of profiles to at least one form plate of the form plate structure, particularly one that forms part of the quarter panel lining. At least one profile of said set of profiles extends said at least one form plate, specifically dedicated to stiffening a rear side wing of the vehicle at the edge of a rear wheel arch it incorporates.

[0035] More specifically, according to one embodiment, the third operation includes fixing at least one profile of the profile reinforcement with at least one said anchoring reinforcement constituting the structure of shaped plates, and / or fixing at least one profile of the profile reinforcement with at least one said fixing reinforcement constituting the structure of shaped plates.

[0036] The methods of producing the wing lining according to a process conforming to the invention allow compliance with rules for securing the motor vehicle, in particular with regard to the number of sheets superimposed in the same layer and fixed together via at least one weld point.

[0037] In particular, to avoid excessive cumulative thicknesses of sheets fixed together via at least one weld point, the choice is made to favor fixing the profiles constituting the reinforcement of profiles together, and if necessary, to provide a notch in at least one of the shaping plates to avoid excessive cumulative thicknesses of sheets that must be fixed together via at least one weld point.

[0038] Thus, according to one embodiment, the third operation is performed by welding together the constituent sheets of the wing lining components, via spot welds connecting a maximum of three sheet thicknesses. The process includes, if necessary, a preliminary operation to create a recess in at least one of the form plates constituting the structure of the form plates. It is understood that this requirement relates to reducing the number of sheets joined together via at least one single spot weld.

[0039] The invention also relates to an assembly station for components of a rear side wing lining of a motor vehicle configured for the implementation of a process according to the invention.

[0040] The assembly station of the invention is essentially recognizable in that it comprises: -) a first welding station between the components of the profile reinforcement, at the output of which the profile reinforcement is obtained, -) a second welding station between the components of the shaped plate structure, at the output of which the shaped plate structure is obtained, -) a third welding station between the profile reinforcement and the shaped plate structure, at the output of which the wing lining is completed.

[0041] Such an assembly station comprises, in total, three essential welding stations which are sufficient to implement the process of the invention. It is understood, however, that ancillary workstations, including additional welding stations, may supplement at least one of the welding stations essential to the implementation of the process of the invention and / or supplement the assembly station, without derogating from the rules established by the invention, whether considered individually or in combination.

[0042] The invention also relates to a rear side wing lining of a motor vehicle comprising a set of profiles and shaped plates fixed together and obtained by implementing a process according to the invention.

[0043] The wing lining of the invention is recognizable in that it comprises a frame of profiles made up of profiles joined together to form a first monobloc assembly, and a structure of shaped plates made up of shaped plates joined together to form a second monobloc assembly. The frame of profiles and the structure of shaped plates are joined to each other by attaching the shaped plates to at least one profile of the frame of profiles, and are separable from each other without loss of their integrity with regard to the preservation of all the respective components of the first monobloc assembly and the second monobloc assembly.

[0044] In other words, the profile reinforcement formed by the first monobloc assembly on the one hand, and the structure of shaped plates formed by the second monobloc assembly on the other hand, are separable from each other while retaining a monobloc assembly of the components they respectively comprise.

[0045] According to one embodiment, the sheets which are constitutive of respective components of the wing lining and which are at least partly superimposed in a layer of sheets, are fixed together jointly by at least one same weld point in said layer of sheets comprising at most three thicknesses of sheets.

[0046] According to one embodiment, at least one of the form plates includes at least one clearance within the perimeter of which is provided at least one weld point jointly fixing together at most three participating plates of the same layer of superimposed plates.

[0047] An example of an embodiment of the present invention will be described with reference to the figures in the accompanying plates, in which: -) there figure 1 is a partial rear-perspective illustration of a motor vehicle equipped with right and left side wing liners, respectively, according to an embodiment of the invention. -) the figure 2 is a perspective illustration of a wing lining according to the example shown on the figure 1 . -) THE figures 3 à 5 are each composed of diagrams respectively (a) and (b) for the figure 3 , (c) and (d) for the figure 4 and (e) and (f) for the figure 5 , which illustrate an example of a method according to the invention for assembling together components of the wing linings shown in the figures 1 et 2 , -) THE figures 6 et 7 are respective details of the wing linings shown on the figures 1 et 2 , as well as on diagram (f) of the figure 5 .

[0048] The figures and their detailed descriptions set forth the invention in particular ways that are not restrictive as to the scope of the invention as defined by the claims. The figures and their detailed descriptions may serve to further define the invention, if necessary in relation to the general description above.

[0049] On the figure 1 , a body frame 1 of a motor vehicle typically includes a roof frame 2 and a subframe 3 connected together by side posts 4. The frames 2,3 are in particular each essentially formed of longitudinal members 5 and cross members 6 assembled together.

[0050] Rear side wing liners 7 are conventionally attached to the body frame 1, positioned between the body frame 1 and the rear side wings 8 that form the exterior bodywork of the vehicle. Each side wing includes a rear wheel arch 9.

[0051] More specifically on the figures 2 And 5 The wing liners 7 are essentially each formed of shaped plates 10a, 10b and stiffening profiles 11a-11e which are joined together by welding. The shaped plates 10a, 10b include a gusset 10a and a quarter panel liner 10b. The gusset 10a is located in the upper area of ​​the wing liner 7 and is vertically extended by the quarter panel liner 10b.

[0052] The gusset 10a and the quarter lining 10b are fixed together, jointly forming a plate structure of shape 10 shown in diagram (d) of the figure 4 , which is fixed to a frame of profiles 11 composed of said profiles 11a-11e and represented in diagram (b) of the figure 3 .

[0053] On the figure 1 The gusset 10a is fixed to a rear pillar 4 and to the roof frame 2 via intersecting arms which it comprises and which are configured to be fixed respectively to a longitudinal member 5 and to a cross member 6 of the roof frame 2. The quarter window lining 10b is fixed to the rear pillar 4 and to the subframe 3, in particular at least via a fixing reinforcement 12 which it comprises and which is configured to be fixed to a longitudinal member 5 of the subframe 3.

[0054] On the figures 2 à 5 , the profiles 11a-11e composing the frame of profiles 11 include in particular a group of profiles 11a, 11b for stiffening the gusset 10a and / or the quarter panel lining 10b, and a set of profiles 11c-11e for stiffening the rear wing 8 of the vehicle at the edge of the wheel arch 9 which it includes.

[0055] The group of profiles 11a, 11b for stiffening the structure of the shaped plates 10 comprises a first profile 11a forward AV1 for overall stiffening of the wing lining 7 and a second profile 11b rear AR1 primarily for stiffening the quarter panel lining 10b. The set of profiles 11c-11e for stiffening the rear wing 8 comprises a front profile 11d and a rear profile 11e extending in a vertical direction V1 and braced by a mid-section profile 11c in a longitudinal direction L1.

[0056] The relative concepts vertical V1 and longitudinal L1 are considered in an orthonormal coordinate system defining the extension of the wing lining 7. The relative concepts upper and lower, or other related concepts such as overhang or base, are considered along the vertical direction V1. The relative concepts forward AV1 and aft AR1 are considered along the longitudinal direction L1 of the wing lining 7's extension.

[0057] To simplify the reading and understanding of the description of the invention, the related concepts mentioned concerning the wing lining 7 and / or its components 10a, 10b, 11a-11e correspond to those commonly applied to a motor vehicle in a ground-based progression station, as illustrated in the figure 1 .

[0058] On the figures 3 à 5 The wing lining components 7, including the shape plates 10a, 10b and the profiles 11a-11e, are assembled together in three assembly operations 13a, 13b, 13c respectively, illustrated on the figure 3 , there figure 4 and the figure 5 .

[0059] There figure 3 Diagram (a) illustrates a first operation 13a of assembling the profiles 11a-11e together, which is carried out at a first welding station 14a. In diagram (a), the profiles 11a-11e are shown isolated from each other prior to their assembly by welding, specifically by spot welding. The reinforcement of profiles 11 obtained at the output of the first welding station 14a is illustrated in diagram (b).

[0060] The profiles 11a, 11b of the group of stiffening profiles of the shape plates 10a, 10b, are arranged overhanging the set of profiles 11c-11e of stiffening of the rear wing 8. The profiles 11a, 11b of said group are assembled together via a fixing between said first profile 11a and the upper end of said second profile 11b.

[0061] The profiles 11c-11e of said set are assembled together in pairs. The upper end of the front profile 11d AV1 and the upper end of the rear profile 11e AR1 are respectively fixed to the longitudinal ends L1 of the median profile 11c. The median profile 11c is thus longitudinally interposed between the front profile 11d AV1 and the rear profile 11e AR1, being positioned at the top of said set of profiles 11c-11e.

[0062] Said group of profiles 11a, 11b and said set of profiles 11c-11e are assembled to each other via the lower ends of the first profile 11a and the second profile 11b of said group of profiles 11a,11b, which are respectively fixed at least to the upper ends of the front profile 11d AV1 and the rear profile 11e AR1, and possibly also to the ends of the middle profile 11c.

[0063] It should be noted in this context that the number of sheets constituting the profiles 11c-11e that are joined together in a single layer by a single weld point may not exceed two weld points. This provides the possibility of subsequently attaching another sheet to said layer, in particular one constituting a component of the structure of shaped plates 10.

[0064] There figure 4 illustrates a second operation 13b of assembling the plates of shape 10a, 10b together carried out at a second welding station 14b. On the diagram (c), the plates of shape 10a, 10b are represented isolated from each other prior to their assembly by welding, in particular by spot welding.

[0065] The second assembly operation 13b can advantageously be carried out simultaneously with the first assembly operation 13a. The plate structure of shape 10 obtained at the output of the second welding station 14b is illustrated in diagram (d).

[0066] The gusset 10a is fixed at its base by spot welds to the top of the quarter panel liner 10b. The mounting reinforcement 12 and anchoring reinforcements 15a, 15b of at least one vehicle accessory to the fender liner 7 are fixed by spot welds to the shaped plate structure 10. The mounting reinforcement 12 is fixed to the base of the quarter panel liner 10b in the front area AV1. This mounting reinforcement 12 is formed by a shaped sheet metal extending vertically V1 from the quarter panel liner 10b for its attachment to the side member 5 of the underbody frame 3.

[0067] An upper anchoring reinforcement 15a, intended for receiving a seat belt retractor, is installed in the junction area between the gusset 10a and the quarter panel lining 10b. The anchoring reinforcement 15a can thus be used to assemble the gusset 10a with the quarter panel lining 10b. A lower anchoring reinforcement 15b, intended for receiving a rear seat fastening device, is attached to the base of the quarter panel lining 10b.

[0068] It should be noted in this context that the number of sheets constituting the components of the structure of plates of shape 10 which are fixed together jointly in a layer by the same weld point may not exceed two weld points.

[0069] There figure 5 illustrates a third assembly operation 13c between the profile reinforcement 11 and the shaped plate structure 10, which is carried out at a third welding station 14c.

[0070] In diagram (e), the profile reinforcement 11 and the shaped plate structure 10 are shown isolated prior to their assembly by welding, specifically by spot welding. The third assembly operation 13c is carried out after the first assembly operation 13a and the second assembly operation 13b. The wing lining 7 obtained at the output of the third welding station 14c is illustrated in diagram (f).

[0071] The assembly between the profile frame 11 and the shaped plate structure 10 is achieved by attaching the central profile 11c of said set and the profiles 11a, 11b of said group to the shaped plate structure 10, via the gusset 10a and / or via the quarter panel liner 10b. The central profile 11c is attached to the base of the quarter panel liner 10b, and the profiles 11a, 11b of said group are attached jointly to the gusset 10a and the quarter panel liner 10b. The second rear profile 11b AR1 is attached to the quarter panel liner 10b at its upper end via the upper anchoring reinforcement 15a.

[0072] On the figures 6 et 7 For example, if necessary, consideration is given to limiting the number of sheets, to less than or equal to three, which are jointly assembled together by the same weld point.

[0073] Indeed, as previously mentioned, the process prioritizes fastening the components of the profile reinforcement 11 and the components of the shaped plate structure 10 to each other via weld points connecting at most two overlapping plates. However, this preference can ultimately complicate the assembly methods between the profile reinforcement 11 and the shaped plate structure 10, and even between their respective components.

[0074] On the figure 6 For example, the connection between the profile reinforcement 11 and the shaped plate structure 10 is made via three weld points 16a, fixing together in a single layer of sheet metal the upper anchoring reinforcement 15a, the gusset 10a, and the upper end of the second profile 11b of said group. This results in a layer of three sheet metal thicknesses that are jointly fixed to each other via the weld points 16a.

[0075] However, the quarter panel liner 10b is likely to extend over the aforementioned three-layer sheet metal structure. To prevent the weld points 16a from being simultaneously welded through four sheet metal layers, the quarter panel liner 10b has a clearance 17 formed during a preliminary cutting operation of the quarter panel liner 10b during its formation.

[0076] Thus, the weld points 16a fixing together the upper anchoring reinforcement 15a, the gusset 10a and the upper end of the second profile 11b of said group, can be provided within the perimeter P1 of the clearance 17. This prevents the sheet metal from which the quarter panel lining 10b is made from bringing to four the number of sheet metal thicknesses jointly fixed together via the weld points 16a.

[0077] On the figure 7For example, the profiles 11a-11e that make up the profile reinforcement 11 are joined together by fixing, via two weld points 16b, between the rear profile 11e AR1, the middle profile 11c of said set of profiles, and the lower end of the second profile 11b. This method of fixing the profiles 11e, 11c, and 11b together has the advantage of reinforcing the robustness of the profile reinforcement 11, ensuring its stability in shape, without exceeding three layers of sheet metal jointly fixed to each other via the weld points 16b.

Claims

1. Method of assembling together sheet metal components (10a, 10b, 11a-11e) of a rear lateral wing lining (7) of a motor vehicle, said components comprising at least stiffening profiles (11a-11e) and shaped plates (10a, 10b) which the wing lining (7) to be produced comprises, characterized in that it comprises the following operations: -) a first operation (13a) carried out at a first welding station (14a) is an operation of assembling together all the profiles (11a-11b) which the wing lining (7) comprises by forming a profiled reinforcement (11), -) a second operation (13b) carried out at a second welding station (14b) is an operation of assembling together all the shape plates (10a, 10b) that the wing lining (7) comprises, forming a shape plate structure (10), then -) a third operation (13c), carried out at a third welding station (14c), is an operation of assembling together the profiled reinforcement (11) and the shape plate structure (10).

2. A method according to claim 1, characterized in that the first operation (13a) comprises at least one assembly between them of a set of profiles (11c-11e) which together form a member dedicated to stiffening a rear wing (8) of the vehicle at the edge of a wheel passage (9) which it comprises, of at least one profile (11a) for joining between at least two shaped plates (10a, 10b) which the wing lining (7) comprises and of at least one profile (11b) for stiffening the wing at least one of the shaped plates (10a, 10b).

3. A method according to any one of claims 1 and 2, characterized in that the second operation (13b) comprises at least one assembly between them of at least two shaped plates (10a, 10b) forming respectively a rear quarter lining (10b) and a gusset (10a) arranged in extension of one another and dedicated to the attachment of the wing lining (7) to a body frame (1) of the vehicle.

4. Method according to any one of Claims 1 to 3, characterized in that the second operation (13b) comprises at least one assembly to at least one of the shaped plates (10a, 10b) of at least one anchoring reinforcement (15a, 15b) dedicated to anchoring at least one accessory of the vehicle to the wing lining (7).

5. Method according to any one of Claims 1 to 4, characterized in that the second operation (13b) comprises at least one assembly to at least one of the shaped plates (10a, 10b) of at least one fixing reinforcement (12) dedicated to fixing the wing lining (7) to a basement framework (3) which comprises the body of the vehicle.

6. Method according to any one of claims 1 to 5, characterized in that the third operation (13c) is carried out by welding together sheets constituting the components (10a, 10b, 11a-11e) of the wing lining (7), via welding points (16a, 16b) interconnecting at most three sheet thicknesses, the method comprising, if necessary, a preliminary operation of forming a clearance (17) in at least one shaped plate (10a) constituting the shaped plate structure (10a) 0), said requirement being related to a reduction in the number of sheets fixed together via at least one same welding point (16a, 16b).

7. Station for joining together components (10a, 10b, 11a-11e) of a rear lateral wing lining (7) of a motor vehicle configured for carrying out a method according to any one of claims 1 to 6, characterized in that it comprises: -) a first welding station (14a) between components (11a-11e) of the profile reinforcement (11), at the outlet of which the profile reinforcement (11) is obtained, -) a second welding station (14b) between them of the components (10a, 10b) of the shape plate structure (10), at the output of which the shape plate structure (10) is obtained, -) a third welding station (14c) between the profile reinforcement (11) and the shape plate structure (10), at the outlet of which the wing lining (7) is completed.

8. Rear side wing lining (7) of a motor vehicle comprising an assembly of profiles (11a-11e) and shaped plates (10a, 10b) fixed to each other and obtained by implementing a method according to any one of claims 1 to 6, characterized: -) in that the wing lining (7) comprises a said reinforcement of profiles (11) composed of said profiles (11a-11e) integral with each other, forming a first monoblock assembly, and a said structure of shaped plates (10) composed of said shaped plates (10a, 10b) integral with each other, forming a second monoblock assembly, and -) in that the profile reinforcement (11) and the shape plate structure (10) are assembled to each other by fixing the shape plates (10a, 10b) with at least one profile (11a, 11b, 11c) of the profile reinforcement (11), being detachable from each other without loss of their integrity with regard to the preservation of the entirety of the respective components (11a-11e and 10a, 10b) of the first one-piece assembly and of the second one-piece assembly one piece.

9. Wing lining (7) according to claim 8, characterized in that the sheets which are components (11a-11e and 10a, 10b) of the wing lining (7) and which are at least partly superposed in a sheet metal layer, are fixed together by at least one same welding point (16a, 16b) in a said sheet metal layer comprising at most three sheet metal thicknesses.

10. Wing lining (7) according to either of Claims 8 and 9, characterized in that at least one of the shaped plates (10a, 10b) has at least one clearance (17) in the perimeter (P1) of which is provided at least one welding point (16a) which jointly fixes at most three participating sheets of the same layer of superposed sheets.