JPH07115193B2 - Assembling method of engine compartment - Google Patents

Description

TECHNICAL FIELD The present invention relates to an engine compartment assembling method for assembling an engine compartment constituting an automobile body.

(Prior Art) Assembling process of an automobile body is performed by a floor main process, a main body process, a metal process, as described in Sankaido's Automotive Engineering Complete Volume 19 "Manufacturing method of automobile" page 179. And a line process. The floor main process is a process of integrally assembling the engine compartment, the front floor and the rear floor. As shown in FIG. 3, the engine compartment includes a radiator core support (radio core) A, left and right hood ridges B, and a dash lower. It is mainly composed of C and dash lower cross D.

Therefore, in the engine compartment process as the previous stage of the floor main process, the above-mentioned panel A is used.
Assembling while sequentially carrying ~ D. As a floor main line for assembling a panel of an engine compartment or the like, there is a conventional floor main line disclosed in Japanese Patent Laid-Open No. 59-82178. A conventional engine compartment assembling line is shown in FIG.

As shown in FIG. 4, the conventional engine compartment assembly line has nine stages indicated by reference numerals 1 to 9, and each stage is used to convey a panel material which is a work to these stages 1 to 9. Through the shuttle bar 10
Is installed. The first stage 1 is a stage in which the left and right hood ridges B are integrated, and the second stage 2 is a stage to which the hood ridges B are attached.
The stage where the dash lower cross D conveyed from the loader 11 is assembled, and the third stage 3 is further the loader 12
The fifth stage 5 is a stage for assembling the Dutzroer C further transported by the loader 13. Then, the stages 4, 6 and 7 use the so-called ceiling-suspended robot 14 suspended from the ceiling to perform re-strike against the workpieces temporarily hit by the stages 2, 3 and 6. Is. The stage 8 is an idle stage, and the stage 9 is a carry-out stage.

In such a conventional and engine compartment assembly line, as in the case of the floor main line disclosed in the above publication, as shown in FIG. 4 and FIG. It is conveyed in the direction of travel.

(Problems to be Solved by the Invention) However, the above-mentioned engine compartment line has the following problems because the vehicle body is conveyed in the traveling direction of the vehicle body.

As shown in FIG. 3, in the engine compartment, the part to be struck mainly is a region indicated by reference numeral S in the figure,
That is, as indicated by X in FIG. 5 (A), since the vehicle is concentrated on the front and rear portions of the vehicle, it is important to position the welding means in front of and behind the vehicle body so that the shuttle bar 10 can convey the vehicle body. It was an obstacle and the welding work was not easy. For this reason, as shown in FIGS. 4 and 5 (A) and (B), it is necessary to perform the additional hitting work using the ceiling-mounted robot 14.

As shown in FIGS. 5 (A) and 5 (B), when a ceiling-mounted robot is used, a large robot stand 14a is required, which not only increases equipment costs but also makes it difficult to generalize the apparatus.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to make it possible to install welding means on the floor on the side of the line and to generalize the assembly work of the engine compartment.

(Means for Solving Problems) The present invention for achieving the above-mentioned object provides a stage for temporarily striking a plurality of panel materials constituting an engine compartment integrally by welding means and a temporarily striking panel material. In an assembly method of sequentially transporting the panel material in the longitudinal direction of an engine compartment assembly line having a stage for further hammering by welding means to assemble the engine compartment, the work of the engine compartment formed of the panel material is , So that the hitting points concentrated on the front and rear parts of the vehicle body are located laterally with respect to the longitudinal direction of the assembly line, and the panel materials are welded to each other by welding means installed on the sides of the line. A set of engine compartments characterized by being weldable It is a standing method.

(Operation) When an engine compartment, which is a work made up of multiple panel materials in an engine compartment assembly line, is conveyed with its longitudinal direction oriented horizontally with respect to the line, a spot welder or welding robot is installed on the side of the line. Since the welding work can be performed by the welding means installed on the floor, the welding work is facilitated, the production efficiency of the engine compartment is improved, and the maintenance of the welding means is facilitated.

(Example) Hereinafter, it demonstrates based on one Example of this invention shown in figure. FIG. 1 is a view showing an assembling apparatus embodying the method for assembling an engine compartment according to the present invention, and the portions common to those in the conventional assembling apparatus shown in FIG. 4 are designated by the same reference numerals.

The illustrated apparatus has a first line 21 for assembling a vehicle while sequentially transporting works by a first shuttle bar 20, and a second shuttle bar 22 installed in a direction perpendicular to the first line 21. It consists of 2 lines 23.

The first line 21 has eight stages indicated by reference numerals 31 to 38, and the second line 23 is the first stage of the first line.
31 and two assembling stages 41 and 42 respectively provided on both sides thereof. These assembly stages
Reference numerals 41 and 42 denote stages in which the radio core A and the dash lower cross D are integrated with the hood ridge B, and work of different vehicle types or vehicle types are integrally assembled. For convenience, it is assumed that the mounting stage 41 is a vehicle of a certain vehicle type or vehicle type, that is, the A vehicle is a work, and the assembly stage 42 is a B vehicle of another vehicle type or a vehicle type is the work is to be mounted. And

Each of the assembling stages 41, 42 is provided with a loader 25 for carrying the radio core A and a loader 26 for carrying the dash lower cross D. Further, each assembly stage 41, 42 is provided with spot welding means (not shown) for temporary driving, and the above-mentioned panel materials are integrated with each other. Each assembly stage 41, 4
From the 2nd, based on the production plan of the car body, the 2nd shuttle bar 2
By 2, the work from one of the assembling stages is conveyed to the carry-in stage 31 of the first line 21.

As shown in the drawing, the posture of the work carried by the shuttle bar 23 is set so as to face the traveling direction of the vehicle body in the second line. Therefore, the work carried into the first line 21 from the carry-in stage 31 is carried in the first line 21 in a posture in which the work is oriented laterally to the traveling direction of the vehicle body.

The stage 32 of the first line 21 is the assembly stage 41 or 42.
Hood Ridge B and Dash Lower Cross D
The welding robots 50 and 51 as welding means are installed on the left and right sides of the shuttle bar 20 on the stage where the hammering is performed to increase the assembling strength between the radio core A and the radio core A. The third stage 33 is also an extra-strength stage, and another welding robot 52 is installed here. The fourth stage 34 of the first line 21 is a stage for mounting the dash lower C shown in FIG. A loader 27 for loading is installed.

The fifth and sixth stages 35 and 36 of the first line 21 are stages for additional hitting, respectively, and welding robots 53 and 54 are installed adjacent to the shuttle bar 20 and beside them. The seventh stage 37 is an idle stage and the eighth stage 38 is a carry-out stage.

As described above, the welding robots 50-54 are connected to the shuttle bar 20.
It can be installed on the side of the vehicle because the car body, which is the work, is conveyed in the first line so that it travels laterally with respect to the traveling direction of the vehicle, as shown in the figure. That is, especially in the line for assembling the engine compartment, S in FIG.
As indicated by X in the figure, since the spot welding spot positions are concentrated on the front and rear portions of the vehicle body, when the vehicle body is transported sideways, the spot position should be on the line side of the first line 21. Therefore, even if the welding robots 50 to 54 are installed on the line side, the welding robot does not interfere with the transportation of the vehicle body, and the floor-mounted welding robot is not used, unlike conventional floor welding. Spot welding work can be performed by the floor-standing welding robot installed at.

In addition, the illustrated assembly line is composed of a first line 21 and a second line 23 that is oriented in a direction perpendicular to the first line 21, and is arranged in a cross shape as a whole, and the main panels constituting the engine compartment are Since the two stages 41 and 42 are integrated in front of the carry-in stage 31 of the first line 21, when changing the vehicle type or model, one stage 41 to 42 is operated while the other stage jig is operated. It is possible to exchange, etc. Furthermore, the line can be effectively utilized and the line can be generalized even if the production balance of the two car models A and B is different, not only in parallel production of multiple car models. it can.

(Effects of the Invention) As described above, according to the present invention, the length of the assembly line is set so that the work of the engine compartment formed of the panel material is located on the line side at the hitting points concentrated in the front and rear portions of the vehicle body. Since it is possible to weld the panel materials to each other by the welding means installed on the side of the line, it is possible to transport the objects sideways with respect to the direction, so that the floor-standing type of Welding means can be installed on the line side,
This facilitates the welding work and facilitates the maintenance of welding means, etc., and improves the efficiency of production of the engine compartment.

[Brief description of drawings]

FIG. 1 is a plan view showing an assembling apparatus embodying the method for assembling an engine compartment according to the present invention, FIG. 2 is an enlarged plan view showing one stage in FIG. 1, and FIG. 3 is shown in FIG. FIG. 4 is a perspective view showing an example of an automobile body assembled by the assembling apparatus shown in FIG. 4, FIG. 4 is a plan view showing an assembling apparatus of a conventional engine compartment, and FIG. 5 (A) is an enlarged view of one stage in FIG. A plan view and FIG. 5 (B) are front views of the same figure (A). 20 ... Shuttle bar, 21 ... First line (automobile body assembly line), 31-38 ... Stage, 50-54 ... Welding robot (welding means), AD ... Panel material (engine compartment) Work that constitutes).

Claims (1)

[Claims] 1. An engine compartment assembly line having a stage for temporarily striking a plurality of panel materials constituting an engine compartment integrally by welding means, and a stage for further striking each of the temporarily striking panel materials by welding means. In an assembling method of sequentially transporting the panel materials in a longitudinal direction and assembling an engine compartment, a work point of an engine compartment constituted by the panel materials is located on a line side at a hitting point concentrated on the front and rear portions of the vehicle body. As described above, the method of assembling the engine compartment is characterized in that the panel material is conveyed laterally with respect to the longitudinal direction of the assembly line, and can be welded to each other by the welding means installed on the side of the line. .