JPS6223882A - Body assembling device for automobile - Google Patents

Abstract

PURPOSE:To ensure the accuracy of positioning of an under body and a side member, by coupling an under body base to a slide base at its forward end by using an engagement member, and automatically positioning the slide base in its vertical, lateral and longitudinal directions. CONSTITUTION:An under body base 1 is supported through floating members 11 on an under body base receiver 10. There are provided engagement positioning members between front surfaces of slide bases 4 and side surfaces of the under body base 1. Then, the slide bases 4 are automatically positioned in the vertical, lateral and longitudinal directions at their forward ends, and are coupled to the under body base 1. As a result, the positioning of an under body UW relative to the slide bases 4 may be easily ensured without being influenced by the combination accuracy between a side member SW and the under body UW, thus increasing the installation accuracy to improve the quality.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a vehicle body assembly device installed in an assembly line for automobile bodies.

<Prior Art> As shown in FIG. 6, a conventional automobile body assembly apparatus includes an underbody base 1 having an underbody support 2 on the upper surface that supports an underbody UW, and an underbody base 1 with this underbody base 1 in the center. A side base 3 installed on both sides thereof, a slide base 4 that moves forward and backward with respect to the underbody base 1 on this side base 3, and a side member base support 5 installed on this slide base 4 can be rotated. The side member base 6 is rotatably supported 8 and includes a side member holding jig 7 for holding the side member SW.

Then, at the advancing/retracting end position A of the slide base 4, rotate the side member base 6 so that the site member holding jig 7 faces -E, hold the side member SW in the side member holding jig 7, and The member base 6 is rotated 90 degrees in the direction of the underbody 11W, the slide base 4 is moved forward to the forward end position B, and the side member SW is connected to the underbody 111+' on the underbody base 1 by four strings.

<Problems to be Solved by the Invention> In the case of a conventional vehicle body assembly device, the underbody receiver and the side member holding jig are aligned in a fixed state, and the underbody and side member are mutually aligned at the above-mentioned assembly position. Since the positioning is done indirectly, the underbody support and side member holding jig must be set with high accuracy in relation to each other, which has the disadvantage of requiring a considerable amount of time and cost for adjustment. Ta.

Means for Solving the Problems> In order to solve the above-mentioned problems of the conventional art, the present invention provides an underbody base having an underbody support on the upper surface, and a device on both sides of the underbody base with the underbody base in the center. A slide base that moves forward and backward with respect to the underbody base on the installed side base, and a slide base that is rotatably supported by the site member base support installed on the slide i base, and that holds the Zyde member holding tool ( In the vehicle body assembly device, the underbody base is supported on an underbody base pedestal via a floating member, and the front surface of the slide base and the side surface of the underbody base are provided with: A concave-convex fitting positioning member is provided for positioning and connecting the top and bottom, left and right V1!, and front and back directions of the underbody base at the forward end position of the slide base.

<Function> In the present invention, when the slide base is located at the forward end,
The underbody base is connected to the underbody base by a concave-convex fitting positioning member, and the underbody base is automatically positioned vertically, horizontally, and front and back to ensure accurate alignment of the underbody and side members.

Embodiments Hereinafter, embodiments of the present invention will be described based on FIGS. 1 to 5. In FIGS. 1 and 2, 1 is an underbody base, and an underbody support 2 is provided on the upper surface of the underbody base. This amplifier base body 1 is able to float downward, horizontally, and longitudinally via a floating member 11 such as a spring on a pedestal 10 fixed to the upper surface of a main base 12 installed on the floor. Supported. A lift-and-carry type transfer 9 for transporting the underbody +1W is arranged above the center of the underbody base 1, and carries the underbody UW from the previous process onto the underbody receiver 2, and assembles the side member cage described later. After attaching it, it is transported to the next process.

Reference numeral 3 denotes side bases installed on both left and right sides of the main base 12. A slide base 4 is provided on the side base 3 so as to be movable forward and backward relative to the underbody base 1. A side member base support 5 is fixedly installed on this slide base 4, and a side member base 6 equipped with a side member holding jig 7 is rotatably supported on this side member base support 5. ing.

Further, a concave-convex fitting positioning member 13 is provided on the front surface of the slide base 4 and the side surface of the underbody base 1, for positioning and coupling the underbody base 1 vertically, horizontally, and longitudinally at the forward end position of the slide base 4. ing.

FIGS. 3 and 4 show other embodiments of the present invention. In the case of this embodiment, the other components are the same as those in FIGS. 1 and 2 except that the conveying means of the underbody IJW is different from the transfer 9 shown in FIGS. 1 and 2 above. The conveyance means of this embodiment is provided with a wheel guide pedestal 12a in place of the main base 12, and this wheel guide pedestal 12a is provided in place of the main base 12.
Lay the wheel guide 14 on the underbody base 1
The underbody pedestal 10 with wheels, which is supported via a floating member 11, is used as a trolley to run and move on the wheel guide 14. In the case of this embodiment as well, concave-convex fitting positioning members 13 are provided on the front surface of the slide base 4 and the side surface of the amplifier body hese 1.

As shown in FIG. 5, the uneven fitting positioning member I3 has a structure in which a bottle hole 16 is provided on the side surface of the underbody base 1, and a coupling bottle 17 that fits into the bottle hole 16 is provided on the front surface of the slide base 4. It is.

Incidentally, the relationship between the bottle hole 16 and the combination bottle I7 may be the opposite arrangement as described above, or the relationship between the bottle hole 16 and the combination bottle 17 may be reversed.
However, the present invention is not limited to this, and other concavo-convex fitting structures may be used.

Next, the operation of the above configuration will be explained. Figures 1 and 2
In the case of the embodiment shown in the figure, the underbody IIW is transported by a transfer 9 and placed onto the underbody receiver 2 . In addition, in the case of the embodiment shown in FIGS. 3 and 4, the underbody +
1W uses the underbody cradle IO as a wheel guide 1
4 and is carried to the assembly position with the side member SW.

The side member Sw is set in the side member holding jig 7 facing upward at the rearward end position of the slide base 4, and the side member base 6 is rotated 90 degrees in the direction of the underbody base 1, and the slide base 4 is moved downward. Move forward toward body base 1. This slide base 4
The slide base 4 and the underbody base 1 are connected by the concave-convex fitting positioning member 13 from this side of the forward end of the slide base 4,
At the forward end of the slide base 4, the underbody base 1
The vertical, horizontal, and longitudinal positioning is performed, and the side member SW and underbody [IW] are correctly combined.

<Effects of the Invention> As described above, according to the present invention, the slide base that supports the side member and moves forward and the underbody base that supports the underbody are connected to each other by the concave-convex fitting positioning member at the forward end of the slide base. Since the structure is designed to position and connect the body base in the vertical, horizontal, and longitudinal directions, misalignment of the underbody with respect to the slide base can be avoided without affecting the assembly alignment accuracy of the side member and underbody. can be secured, resulting in cost benefits. Furthermore, the assembly accuracy is also high, which has the effect of improving quality.

[Brief explanation of drawings]

FIG. 1 is a front view of the present invention, FIG. 2 is a plan view, FIG. 3 is a front view showing another embodiment of the present invention, FIG. 4 is a plan view of the same, and FIG. 5 is a concave-convex fitting positioning member. A sectional view showing an example of
FIG. 6 is a front view of the conventional device. ■... Underbody base, 2... Underbody holder, 4... Slide base, 6... Side member base, 7... Side member holding jig, 10... Underbody base holder , 11... floating member, 13...
Concave and convex fitting positioning member.

Claims (1)

[Claims] an underbody base having an underbody support on its upper surface; a slide base that moves forward and backward with respect to the underbody base on side bases installed on both sides of the underbody base; A vehicle body assembly device comprising a side member base rotatably supported by an installed side member base support and equipped with a side member holding jig,
The underbody base is supported on an underbody base pedestal via a floating member, and the front surface of the slide base and the side surface of the underbody base are attached to the top and bottom, left and right, and front and back of the underbody base at the forward end position of the slide base. An automobile body assembly device provided with a concave-convex fitting positioning member for positioning and connecting directions.