JPH0615345B2 - Method for assembling automobile outer plate members - Google Patents

Description

The present invention relates to a method for assembling an outer plate member of an automobile.

[Prior art]

BACKGROUND ART Conventionally, as a structure for joining an outer plate part plate represented by a rear fender panel or the like to a vehicle body mounting surface, for example, there is known Vol. 13 of the Automotive Engineering Manual, "Car Body of Passenger Car" (Sankaido version).

The vehicle body to which the outer plate member is attached is, for example, as shown in FIGS.
As shown in FIG. 7, each panel member 101 molded from a panel material by pressing is applied to a vehicle body 11 by a vehicle body assembly jig or the like.
7, the mounting holes 103 formed in the panel members 101 are aligned with the mounting holes 109 formed in the terminal flange 107 of the outer plate member 105, and the holes 10
Bolt 111 and nut 113 screwed to 3, 109
The outer plate member 105 is attached.

Further, the outer plate member 105 may be a back door finisher as shown in FIGS. 8 and 9, and the finisher can be attached to the vehicle body 117 in the same process as described above.

[Problems to be Solved by the Invention] In such a vehicle body, after each panel member 101 is press-molded from the panel material as described above, each panel member 1
Since the process of assembling 01 into the vehicle body 117 is included, a molding error at the time of press molding and an assembly error at the time of assembling each panel member 101 are added, so that a vehicle body assembly error appears as shown by a chain line in FIG.

Therefore, the hole 103 for mounting the outer plate member is displaced from the reference position, and there is a surface where the positional accuracy of the mounting hole 103 is not stable. Therefore, in some cases, the outer plate member 105
There is a risk that the installation may become impossible, or that the construction may be misaligned 2 as shown in FIG.

For this reason, for example, as shown in FIG. 11, the mounting hole 103 is a jig 11 dedicated to hole processing such as a huge mill and drill machine.
5, position accuracy is ensured by processing the assembled vehicle body 117 at a time, but it requires a separate step for hole processing and a huge jig 115, such as process management and workability. I didn't want it.

Therefore, an object of the present invention is to provide an automobile outer plate member assembling method capable of accurately assembling an outer plate member at a correct position without using a jig for drilling holes.

[Means for solving problems]

In order to achieve the above object, in the present invention, a bracket having a mounting seat surface and a mounting flange is supported by a positioning jig, and the mounting flange of the bracket is opposed to the vehicle body mounting surface to the vehicle body mounting surface. The mounting seat surface is positioned while adjusting the clearance amount, the mounting flange and the vehicle body mounting surface are welded by welding means, and then the outer plate member is joined and fixed to the mounting seat surface.

〔Example〕

An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a vehicle body on the rear side of the automobile. The vehicle body 1 is integrally assembled by a welding means such as a spot with each panel member 1a made of a steel plate material by press molding.

An outer plate member 7 such as a rear fender panel formed of synthetic resin is attached to a vehicle body mounting surface 3 of the vehicle body 1 via a bracket 5.

The bracket 5 has a mounting seat surface 11 to which a nut 9 is welded and mounting flanges 13 and 13 on the back surface side, and the mounting flanges 13 and 13 have a desired clearance margin α and are mounted on the vehicle body mounting surface 3
It is welded 15 by welding means 23 such as an arc.

On the other hand, the mounting seat surface 11 has a structure in which the flange portion 17 of the outer plate member 7 is joined and fixed by a fixing bolt 19.

Next, a procedure for attaching the outer plate member 7 to the vehicle body 1 will be described. First, the vehicle body 1 is assembled by connecting the panel members 1a by welding means such as spots. Next, after screwing the tip screw portion of the positioning jig 21 from the upper surface side to the nut 9 welded to the rear surface side of the mounting seat surface 11 to support the bracket 5,
The mounting flanges 13 of the placket 5 are opposed to the vehicle body mounting surface 3. At this time, the dimension H in the surface direction from the vehicle body mounting surface 3 to the mounting seat surface 11 is adjusted by adjusting the clearance [alpha] while moving the mounting flanges 13 and 13 toward and away from the vehicle body mounting surface 3. To set. Next, after the positioning in the plane direction, the reference surface 11a of the mounting seating surface 11 is obtained by moving along the vehicle body mounting surface 3 by an amount corresponding to the assembly error β. Then, the positioned mounting flanges 13 of the bracket 5 and the vehicle body mounting surface 3 are welded 15 by welding means 23 such as an arc. Since the mounting flanges 13 and 13 at the time of welding are securely and firmly fixed by the welding metal portion 15 which is provided between the mounting flanges 13 and the vehicle body mounting surface 3, the strength is not affected.

Next, after aligning the flange portion 17 of the outer plate member 7 with the mounting seat surface 11 of the bracket 5, the screw portion of the bolt 19 is screwed into the nut 9. This ensures that it is installed in the correct position.

〔The invention's effect〕

As described above, according to the method of assembling the outer plate member of the present invention, the vehicle body assembly error can be absorbed by the bracket, so that the outer plate member can be reliably attached to the correct position. For this reason, no building error occurs and the appearance quality is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which an outer plate member is removed from a vehicle body assembled by the assembling method of the present invention, and FIG.
(B) is a mounting operation diagram of the bracket, FIG. 3 is an overall schematic explanatory diagram of the same as above, FIG. 4 is an explanatory diagram of main parts, FIG. 5 is an explanatory diagram during vehicle body assembly, and FIG. 1 is a perspective view similar to FIG. 1, FIG. 7 is a sectional view taken along line VII-VII of FIG. 6, FIG. 8 is a perspective view showing a conventional means for attaching a finisher to a back door, and FIG. FIG. 10 is a perspective view showing a construction error of a conventional example, and FIG. 11 is a schematic side view showing a hole forming dedicated device of the conventional example. Description of main drawing symbols 3 …… Body mounting surface 5 …… Bracket 11 …… Mounting seat surface 13 …… Mounting flange 21 …… Positioning jig

Claims (1)

[Claims] 1. A mounting seat surface, wherein a bracket having a mounting seat surface and a mounting flange is supported by a positioning jig, and the mounting flange of the bracket is opposed to the vehicle body mounting surface while adjusting the clearance to the vehicle body mounting surface. Is positioned, the mounting flange and the vehicle body mounting surface are welded together by welding means, and then the outer plate member is joined and fixed to the mounting seat surface.