JPH04185585A - Module assembly structure of car body - Google Patents

Abstract

PURPOSE:To relax the dimensional accuracy of each member of a module by positioning an upper module and an under module with a designated gap and pouring an adhesive in the gap to join both modules to each other in a module assembly structure where the upper module and the under module are assembled. CONSTITUTION:A car body 10 is divided into an upper module UPRM 16 for forming the periphery of a roof 12 and the periphery of a door opening portion 14 and an under module UNDRM 20 for forming the under body. The dividing positions of the respective modules 16, 20 are the closed section portions of the lower portion 22 of a front pillar 22, a locker 24 and a cowl 26. At the time of joining the modules 16, 20, the UPRM is held above UNDRM 20 by the second jig 51 which forms a pair with the first jig 48. At this time, a designated gap is given between both modules 16, 20, and an adhesive is poured in the gap portion 57. By this adhesive 58, the UNDRN 20 and the UPRM 16 are joined to each other.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a module assembly structure for an automobile body in which an upper module and an undermodule constituting the automobile body are combined and assembled.

[Prior art]

Conventionally, white car bodies require large production line equipment, and when assembling various parts on the inside of the floor or the inside of the body, workers have to enter the cabin or manually work through the openings on the side of the body. must be done.

In order to solve this problem, a so-called module assembly structure for automobile bodies has been developed in which the vehicle body is divided into two parts at the rocker into an upper module and an undermodule, and the upper module and the undermodule are connected at the rocker to form the vehicle body. It is disclosed in Japanese Patent Publication No. 64-28377.

In the module assembly structure for an automobile body disclosed in the above publication, when the rocker of the upper module is joined to the rocker of the undermodule, the flange on the outside in the vehicle width direction of the side sill outer lower panel, which is the joint part with the rocker of the upper module, There is a problem in that the bolts for connecting the modules are difficult to install because the bolts are swaying. For this reason,
The present applicant has proposed a module assembly structure that eliminates the above-mentioned problems and improves workability during module assembly (
Jitsugan No. 2-49483).

That is, as shown in FIG.
0 rocker 62 with rocker outer 64 and rocker inner 66
The rocker 72 of the undermodule 70 is joined with the flange 68 at the upper and lower ends of the vehicle to form a closed cross section, and the rocker outer 74 and the floor panel 76 form a closed cross section, and the rocker inner 66 of the upper module 60 and the undermodule 70 are connected to each other to form a closed cross section. The surface facing the rocker outer 74 is the guide surface 78.
80, and the positions of both parties are determined.

As a result, when positioning the upper module 60 and the undermodule 70, the rocker outer 74 and the like of the undermodule 70 are not deformed, and assembly workability is improved.

[Problem to be solved by the invention]

However, in the above configuration, when forming a closed cross section to each rocker 62.72 of the upper module 60 and undermodule 70, dimensional accuracy is required to ensure the position of the guide surface 78.80.

In consideration of the above facts, the present invention aims to provide a module assembly structure for an automobile body that can reduce the dimensional accuracy of each member of the module and improve workability during module assembly.

[Means to solve the problem]

The module assembly structure for an automobile body according to the present invention is a module assembly for an automobile body in which an upper module and an under module of a vehicle body are assembled, which are separated by rocker parts disposed at both ends in the width direction of the vehicle and extending in the longitudinal direction of the vehicle. the upper module and the undermodule are positioned with a predetermined gap between them, and the upper module and the undermodule are bonded by injecting an adhesive into the gap and curing the adhesive. It is characterized by

[Effect]

According to the present invention, the undermodule is positioned at a predetermined position. During this positioning, for example, a jig is used to hold it. Next, the upper module is held and placed on the lower module. At this time, by positioning the jig and the jig that holds the upper module, the upper module is placed in a predetermined position on the lower module. Positioned. With the undermodule and the upper module positioned at predetermined positions, a gap is provided between them. Adhesive is injected into this gap and allowed to harden. As a result, the undermodule and the upper module are joined via the adhesive.

In this way, since a predetermined gap is provided from the beginning of positioning the undermodule and upper module, even if the dimensional accuracy of each part, especially the dimensional accuracy of the joint surfaces facing each other, is rough, the undermodule and upper module can be reliably positioned in the appropriate relative position. Modules can be positioned with high accuracy (each module can be connected).

〔Example〕

Embodiments of the present invention will be described with reference to FIGS. 1 to 3.

In the figure, arrow FR indicates the forward direction of the vehicle, arrow IN indicates the inside direction of the vehicle, and arrow UP indicates the upward direction of the vehicle.

As shown in FIG. 3, the vehicle body 10 includes an upper module (hereinafter referred to as UPRM) 16 that constitutes the area around the roof 12 and the area around the door opening 14, an under module (hereinafter referred to as UNDRM) 20 that constitutes the underbody, and the vehicle body 1.
0, and a front end module 21 that constitutes the front side of 0.

The division positions of these UPRMI 6 and UNDRM 20 are the lower part of the front pillar 22, the long force 24, and the cowl 26.
These closed cross-section portions are each divided into two along the longitudinal direction, and UPRMI6 and UN
Each end of the DRM 20 serves as a skeleton member. Therefore, U
PRMI6 and UNDRM20 each have a closed cross section at each end, and UPRMI, 6, UNDRM
The unit rigidity of each of No. 20 is increased. Locker 2 below
Taking No. 4 as an example, the configuration of the coupling section on the UPRMI 6 side and the UNDRM 20 side will be explained.

As shown in FIG. 1, the four-way force 24 extends along the longitudinal direction (vehicle longitudinal direction) of the UPRM that forms the outer side in the vehicle width direction.
It is divided into two parts: a rocker 28 and an UNDRM rocker 30 forming an inner side in the vehicle width direction.

UPRM rocker 28 is connected to UPRM rocker outer 36 and UP
RM rocker inner 38. The UPRM Ronca outer 36 has an abbreviated cross-sectional shape when viewed from the vehicle longitudinal direction, and is divided into an earth wall portion 36A and a side wall portion 36B. A flange portion 36C is formed extending from the end of the upper wall 836A along the upper wall portion 36A. Also, the side wall! The end of 136B is bent and extended outward from the vehicle,
A flange portion 36D is formed.

On the inside of the UPRM rocker outer 36 in the vehicle width direction, there is a UPR
An M rocker inner 38 is arranged along the UPRM rocker outer 36. The cross-sectional shape of the UPRM rocker inner 38 when viewed from the longitudinal direction of the vehicle is an abbreviated shape in which a side wall 38A and a lower wall 38B form a closed cross section with the earth wall 36A and side wall 36B of the UPRM rocker outer 36. A flange portion 38C is formed at the upper end of the side wall portion 38A, which is bent and extended inward of the vehicle and joined to the flange portion 36C. Furthermore, a flange portion 38D is formed at the vehicle outer side end portion of the lower wall portion 38B, which extends along the lower wall portion 38B and is joined to the flange portion 36D.

The UNDRM longa 30 is composed of an UNDRM rocker outer upper 44, an L+NDRM rocker outer lower 45, and a floor side member inner 46. Ll N
The cross-sectional shape of the DRM rocker outer upper 44 when viewed from the vehicle longitudinal direction is bent into a crank shape along the outer surface of the UPRM rocker inner 38. Also, this TjN
The vehicle inner side end of the DRM rocker outer 44 is bent and extended upwards of the vehicle to form a flange portion 44A, which is used for joining with the floor side member inner 46. Also,
The vehicle outer side end of the UNDRM rocker outer 44 is
It has a role as a flange portion 44B for joining with the DRM rocker outer lower 45.

The UNDRM rocker outer lower 45 has a flange portion 45A formed at the end in the vehicle outward direction, and is joined to the flange 844B of the UNDRM rocker outer upper 44.

The UNDRM rocker outer lower 45 extends inward of the vehicle via a slope portion 45B, and a flange portion 45C bent toward the vehicle bottom is formed at the tip of the slope portion 45B in the extending direction, and is connected to the floor side member inner 46. It is used for

The rear floor side member inner 46 has a so-called hat-shaped cross-sectional shape when viewed from the front-rear direction of the vehicle, with the opening facing outward from the vehicle, and the flange portions 46A and 46B provided in the vertical direction of the vehicle correspond to the 7 langes 1I44A. , 45C
It is joined with. As a result, UNDRM locker 30
is considered to be a closed section. In addition, the flange portions 44A, 4
6A and between the flange portion 45C146B,
Ends in the vehicle vertical direction of rocker reinforcements 47 disposed in the vehicle longitudinal direction are interposed within the UNDRM rocker 30, respectively.

As shown in Figure 2 (A) and (B>), UNDRM2
0 is held in a predetermined position by a first jig 48 mounted on a surface plate 49.

This first jig 48 is constituted by a plurality of column parts 48A, and has a knock pin 50 protruding from its upper end surface, as shown in FIG. 2(B). This dowel pin 50 is
By being inserted into the circular hole 2OA provided in advance in the UNDRM 20, the L'NDRM 20 is positioned at an appropriate position. Note that the first jig 48 is UNDRM20
are provided at four locations each in the width direction.

On the other hand, the UPRM 16 is held above the UNDRM 20 by a second jig 51 paired with the first jig 48 . This second jig 51 has a column part 52 and a beam part 53.
It is made up of. The column portion 52 is divided into two in the longitudinal direction, and the beam portion 53 is attached to the upper column portion 52A so as to be slidable in the lateral direction.

The lower column portion 52B is fixed to a surface plate 49 to which the first jig 48 is attached. As shown in FIG. 2(B), a knock pin 54 protrudes from the upper end surface of the lower column 52B, and a circular hole 55 into which the knock pin 54 is inserted is formed in the lower end surface of the upper column 52A. It is provided.

A knock pin 56 protrudes from the end face of the beam B53 on the side facing the UPRMI6. By inserting this dowel pin 56 into the circular hole 16A provided in advance in the tJPRM16, the UPRM16 is inserted into the second jig 51.
This is the correct position for

Further, a clamp (not shown) is attached to the tip of the beam portion 53, and clamps and fixes the UPRMI 6 when the knock pin 56 is inserted into the circular hole 16A.

The second jig 51 is movable in the vertical direction,
While holding the UPRMI 6, it is moved downward to approach the UNDRM 20, and the knock pin 54 formed on the lower column B52B is inserted into the circular hole 55 provided on the upper column 52A, so that both end surfaces are brought into close contact. It is now possible to do so.

In this state, the UNDRM 20 and the UPRMI 6 are held with a predetermined gap between them. As shown in FIG. 1, this gap 57 is used for injecting an adhesive 58. Therefore, when the adhesive 58 injected into the gap 57 hardens, the UNDRM 20 and the UPRMI 6 are bonded via the adhesive 58.

The operation of this embodiment will be explained below.

The UNDRM 20 is placed on the column of the first jig 48 mounted on the surface plate 49. At this time, the dowel pin 50 formed on the upper end surface of the column is inserted into the 2° OA oval hole provided in advance in the UNDRM20, so that the UNDRM2
0 can be reliably positioned at an appropriate position.

Next, while the UPRMI 6 is placed in a different location, the knock pin 56 formed on the beam portion 53 is inserted into the oval hole 16A provided in advance in the UPRMI 6. As a result, the second jig 51 and the UP
It is positioned relative to RMI6. Then by clamping
The PRMI 6 is clamped and fixed and moved above the UNDRM 20. In addition, the location on the above side was UND from the beginning.
It may be above RM20.

After moving the UPRMI6 above the UNDRM20, when the upper column part 52A and the beam part 53 of the second jig 51 are moved downward, the tJPRM16 gradually moves to the UNDRM20.
approach. At this time, the knock pin 54 of the lower column part 52B attached to the surface plate 49 is moved to the upper column part 52A.
is inserted into the circular hole 55, and both end surfaces are brought into close contact with each other. Thereby, the UPRMI 6 is positioned with respect to the surface plate 49.

UNDRM20 and UPRMI6 are the lower column part 52B.
With both end surfaces of and the upper column portion 52A in close contact with each other,
It is held with a gap 57.

Next, adhesive 58 is injected into this gap 57.

Since the adhesive 58 is in liquid or gel form, it can be easily injected, and is injected so as to cover all of the gaps 57.

UNDRM20 and UPRM until adhesive 58 hardens.
When I6 is held by the first and second jigs 48.51, the UNDRM20 and UPRMI6 are held together by the adhesive 58.
are joined through. That is, they are joined with the cured adhesive 58 separated by the thickness.

After the adhesive 58 has sufficiently hardened, the clamp holding the UPRMI 6 is released, and the beam portion 53 is slid laterally. This allows the vehicle body to move upward.

In this way, in this embodiment, UNDRM20 and UPRM
Since the I6 is held in advance with a gap 57 and bonded to each other via the adhesive 58, the dimensional accuracy of both can be made rough. Therefore, the productivity of each member can be improved, and the workability of assembling the UNDRM 20 and the UPRM 16i can also be improved.

In this embodiment, the locker 24 is taken as an example, and the UP
Although it has been explained that there is a gap 57 between the RMI 6 and the UNDRM 20, there is also a predetermined gap in the front pillar part 22 and the like, and an adhesive 58 is injected into this gap to join them.

〔Effect of the invention〕

As explained above, the module assembly structure for an automobile body according to the present invention has the excellent effects of being able to reduce the dimensional accuracy of each member of the module and improving workability during module assembly.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the rocker section of the module assembly structure of the automobile body according to this embodiment, as seen from the front of the vehicle, and Fig. 2 (A)
and (B) are explanatory diagrams of the module assembly work of this embodiment, FIG. 3 is an exploded perspective view showing the rocker part of the module assembly structure of the automobile body of this embodiment, and FIG. 4 is a conventional module assembly structure. FIG. 2 is a cross-sectional view of the rocker section of the vehicle, seen from the front of the vehicle. lO...Vehicle body, 16...Upper module (UPRM), 20...
Upper module (UNDRM), 24...Rocker, 57...Gap, 58...Adhesive. Figure 1 10 ・ Vehicle body

Claims (1)

[Claims] (1) A module assembly structure for an automobile body in which an upper module and an undermodule of a vehicle body are assembled, which are separated by rocker parts disposed at both ends in the vehicle width direction and extending in the longitudinal direction of the vehicle, wherein the upper module and the undermodule are assembled. A module assembly for an automobile body, characterized in that the upper module and the undermodule are positioned with a predetermined gap between them, and the upper module and the undermodule are joined by injecting an adhesive into the gap and curing the adhesive. structure.