JPS63265781A - Method of assembling automobile - Google Patents

Abstract

PURPOSE:To make it possible to assemble an interior unit at a time when assembling a body divided into multiple number by constituting the interior unit, as one of body constituting units, with a support panel attached with components to be arranged in a passenger compartment. CONSTITUTION:An interior unit assembly line is for integrating components to be arranged in a passenger compartment; an instrument panel 11, a front seat 12, a rear seat 13, a console box 14 and pedals are assembled in sequence on a support panel 10. The support panel 10 is the panel specially prepared for assembling an interior unit 8 and is formed to have strength necessary for constituting the interior unit 8. The interior unit assembly line, similar to a floor assembly line, a front suspension assembly line, a vehicle front part assembly line, etc., are assembled in sequence by using a floor conveyer.

Description

[Detailed description of the invention] A0 Purpose of invention (11 industrial application fields The present invention relates to a method of assembling a motor vehicle.

(2) Conventional technology Conventionally, as a method for assembling automobiles, for example, Japanese Patent Laid-Open No. 61
The one disclosed in Japanese Patent No. 21871 is known.

(3) Problems to be solved by the invention By the way, in the above-mentioned conventional technology, floor panels, side panels, roof panels, bonnets, trunk lids,
The body is constructed by assembling various constituent members such as fenders and doors by welding or the like, and after the body is painted, the parts are divided into a plurality of groups and assembled.

For this reason, in the painting process, a body with a complicated shape must be painted, and painting cannot be done on a vertical surface, which results in a lot of paint dripping and makes it difficult to make it uniform. Moreover, since the workpiece is large, the space used for the pretreatment tank, coating room, drying room, etc. used in the painting process is large, and the equipment cost is also large.

In addition, in the conventional method described above, the assembly process is grouped into an automated zone and a manual zone, but since parts are assembled on a completed body, the manual zone is inevitably placed in the automated zone due to the assembly order. may be incorporated,
Even in the manual zone, the transportation of parts is tact transportation, which is unreasonable. Furthermore, if the assembly Rbl in the automation zone fails, assembly will be carried out in the preliminary work zone, but this will affect the automatic assembly process in the subsequent process.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a method for assembling a vehicle that solves the problems associated with body painting and facilitates automation of assembly.

B1 Inventive Structure (Means for Solving Problems 11) According to the method of the present invention, a plurality of substantially planar body constituent members are joined together by a joining structure excluding welding such as tightening, caulking, and adhesion to form a body. After painting each body component individually, the interior unit assembly process involves assembling the parts to be placed inside the vehicle interior onto a support panel with sufficient strength to construct the interior unit; The floor assembly process involves assembling parts to the underbody, which is part of the underbody, to form the floor assembly, and the front suspension assembly involves assembling the front wheels, front suspension, engine, etc. to form the front suspension assembly. The assembly process involves assembling the rear wheel, rear suspension, fuel tank, exhaust system, etc. to form the rear suspension assembly, and the assembly process involves assembling parts to the front body, which is part of the body. The vehicle front assembly process involves assembling parts to the door to form the vehicle front assembly; the door assembly process involves assembling parts to the door to form the door assembly; and the main shell part, which consists of side panels, roof panels, trunk lids, etc. A step of assembling the main shell parts to configure the main shell part is carried out independently and in parallel, and a step of assembling the door assembly and the front part of the vehicle to the main shell part to constitute the upper part of the vehicle, and a step of assembling the vehicle upper part, , the process of interconnecting the front suspension assembly, rear suspension assembly, and indoor unit to form the lower part of the vehicle is carried out in parallel, and finally, the upper and lower parts of the vehicle are joined together to complete the automobile. Assemble.

(2) Effect By assembling a car using the method described above, the multiple components that make up the body can be individually painted.
Therefore, it is possible to improve coating quality by making flat surface coating possible, and to reduce the cost of coating equipment by downsizing the coating workpiece. Furthermore, since each assembly process is performed in parallel and the assembled assemblies are connected, it is easy to automate the assembly. Moreover, since the indoor unit is constructed by assembling the parts arranged inside the vehicle interior to the support panel, it becomes possible to divide the body into a plurality of groups and assemble them as described above.

(3) Example Hereinafter, an example of the present invention will be explained with reference to the drawings. First, in FIG.
In F, the indoor unit a line assembly line 1, the vehicle front assembly line 5, the door assembly line 6, and the main shell assembly line 7 are arranged independently from each other, and are connected to the first floor IF. In this case, a floor assembly line 2, a front suspension assembly line 3, and a rear suspension assembly line 4 are arranged independently from each other.

During assembly on assembly lines 1 to 7, the automobile body is assembled using a plurality of substantially planar body structural members, such as an underbody B1, a front fender B2, a roof panel B3, a cylindrical panel, an inel B4, a bonnet B5,
It is constructed by joining the door B6, trunk lid B7, rear panel B8, etc. by a joining structure excluding welding such as tightening, staking, and adhesive, and each component B1 to
B8 is provided in a state where it has been painted in advance on a painting line (not shown).

An opening 9 for lowering the indoor unit 8 to the first floor IF is provided on the second floor 2F, and the indoor unit assembly line 1 is set in a straight line toward the opening 9.

This indoor unit assembly line 1 is for assembling and integrating parts arranged in the vehicle interior, and as shown in FIG. 2, the instrument bubble 11, front seat 12, rear seat 13,
A console box 14 and various pedals (not shown) are sequentially assembled. Here, the support panel 10 is
It is specially prepared for assembling the indoor unit 8, and is formed to have the strength necessary to construct the indoor unit 8.

This indoor unit assembly line 1 is the floor assembly line 2.
, front suspension assembly line 4, vehicle front assembly line 5,
Similar to the main shell assembly line 7, assembly is carried out sequentially using a floor conveyor. Further, in each of the assembly lines 1 to 5.7, tact conveyance is performed by a train-type floor conveyor or a free flow conveyor depending on the manner of assembly.

The floor assembly line 2 is set in a straight line with the end position below the opening 9, and in this floor assembly line 2, the underbody Bl formed by welding the chassis and the floor panel, The floor assembly 16 is assembled by assembling the dash board 15, a power steering oil tank (not shown), an auto cruiser actuator, a heater relay box, a heat vacuum tank, an ignition coil, and the like.

The indoor unit 8 that is lowered to the first floor through the opening 9 is coupled to the floor assembly 16, thereby forming an indoor unit assembly 17.

The front suspension assembly line 3 and the rear suspension assembly line 4 are set and arranged so as to face each other on a straight line parallel to the floor assembly line 2 at the first floor IF.

The front suspension assembly line 3 assembles the front wheel 18, front suspension 19, engine 20, etc. to each other to form the front suspension assembly 21, and the rear suspension assembly line 4 The rear wheel 22, rear suspension 23, fuel pump 24, exhaust system 25, etc. are assembled together to form a rear suspension assembly 26, and both assemblies 21 and 26 are joined together to form the suspension assembly. A solid 27 is constructed.

This suspension assembly 27 is assembled to the indoor unit assembly 17 at a position slightly advanced from the floor assembly line 2, thereby forming a vehicle lower part 28.

On the other hand, main shell assembly line 7 was set up on the second floor.
Now, the main shell portion 31 is constructed by assembling the side panel B4, roof panel B5, rear panel B8, trunk lid B7, etc., as well as attaching the windshield and glass.

In addition, the door assembly line 6 is used for tact transportation or continuous transportation.
The door assembly 32 is constructed by attaching the seal rubber, harnesses, door glass, etc. to the door B6 using an overhead conveyor that is conveyed by the door. Installed individually.

Further, on the vehicle front assembly line 5, a front fender B2, a bonnet B5, a bulkhead (not shown), a radiator tank, a bumper, etc. are assembled together to form a vehicle front 33. The vehicle upper part 34 is constructed by connecting the shell parts 31 to each other.

An opening 35 is provided on the second floor 2F, corresponding to the assembly position of the vehicle lower part 28 on the first floor IF, and by lowering the vehicle upper part 34 through this opening 35 and joining it with the vehicle lower part 28. , the car 36 is finally assembled.

For coupling the vehicle lower part 28 and the vehicle upper part 34, a coupling structure as shown in FIG. 3, for example, is used. That is, the underbody Bl that constitutes the vehicle lower part 28 and the side panel B4 that constitutes the vehicle upper part 34 are fitted to each other with the adhesive 37 interposed between them, and the underbody B1 and the site panel B4 are fitted together. The rivet 40 with the enlarged diameter portion 40a facing downward is inserted into the corresponding through holes 38 and 39, and by pulling out the bottle 41 inserted into the rivet 40 downward, the rivet 40 is removed. The upper part of the diameter is expanded. Therefore, the underbody B1 and the side panel B4 are bonded to each other by the rivets 40 and bonded by the adhesive 37, and thereby the vehicle lower part 28 and the vehicle upper part 34 are bonded to each other to assemble the automobile 36.

Next, to explain the operation of this embodiment, the body is constructed by tightening a plurality of body constituent members B1 to B8, which are substantially planar, and excluding welding such as caulking and adhesion. The body can be assembled after each body component B1 to B8 is individually painted.For this reason, in the painting process, each body component B1 to B8 is painted individually.
It becomes possible to apply the coating from above while B8 is placed almost horizontally. Therefore, no paint drips,
It is possible to improve adhesion efficiency, eliminate the need for repair work, reduce paint consumption and save energy, and even out the coating film to improve coating quality.

Furthermore, since each body component B1-88 is relatively small, equipment such as a pretreatment tank, a painting room, and a drying room in the painting process can be small, and equipment costs can be reduced accordingly.

After the painting is completed, each body component B1 to B8 is delivered to each assembly line 2 to 7 except indoor unit assembly line 1, and various parts are assembled on these assembly lines 2 to 7. It will be done.

Each of the assembly lines 2 to 7 is divided into groups suitable for assembly automation, and automatic assembly work is performed on each of the assembly lines 2 to 7.

The indoor unit assembly line 1 is for integrally assembling parts to be placed inside the vehicle interior, and by using the support panel 11, integral assembly is possible.
The assembled indoor unit 8 is assembled to the floor assembly 16. According to such an assembly procedure, parts are assembled into the body (compared to conventional methods, automatic assembly is much easier).

In addition, since an overhead conveyor is used only on door assembly line 6, and a floor conveyor is used on other assembly lines 1 to 5.7, the accuracy of the stopping position and horizontal level is good for each assembly line 1 to 5.7. This allows for easy automatic assembly.

Effects of the C0 Invention As described above, according to the method of the present invention, a body can be constructed by connecting a plurality of substantially planar body constituent members using a connection structure excluding welding such as tightening, caulking, and adhesion. Since each body component is individually painted, each body component can be painted in a substantially horizontal position, and the quality of the coating can be improved.

In addition, the process is divided into indoor unit assembly process, floor assembly process, front suspension assembly process, rear suspension assembly process, vehicle front assembly process, door assembly process, and main shell assembly process. In addition, the process for configuring the upper part of the vehicle and the process for configuring the lower part of the vehicle are performed in parallel, and the lower part of the vehicle and the upper part of the vehicle are assembled to assemble the vehicle, so each assembly process is automated. By dividing the parts into groups suitable for each, automatic assembly as a whole is facilitated.

Moreover, since the indoor unit is constructed by assembling parts placed inside the vehicle interior onto a support panel, the indoor unit can be assembled at once when assembling a body that has been divided into multiple parts.
This makes assembly automation easier.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a simplified perspective view showing the arrangement of the assembly line, FIG. 2 is a simplified perspective view of the indoor unit, and FIG. 3 is a view of the upper part of the vehicle. FIG. 3 is a longitudinal cross-sectional view showing a coupling structure between the vehicle body and the lower part of the vehicle.

Claims (1)

[Claims] The body can be constructed by connecting multiple body components that are approximately planar using a connection structure other than welding such as tightening, caulking, or adhesive, and after each body component is individually painted, sufficient strength can be obtained. an indoor unit assembly process in which parts to be placed inside the vehicle are assembled to a support panel having a The front suspension assembly process involves assembling the front wheels, front suspension, engine, etc. to form the front suspension assembly, and the front suspension assembly process involves assembling the rear wheels, rear suspension, fuel tank, exhaust system, etc. The rear suspension assembly process involves assembling the rear suspension assembly, the vehicle front assembly process involves assembling parts to the front body, which is part of the body, to construct the vehicle front assembly, and the vehicle front assembly process involves assembling parts to the door. The door assembly process for assembling to form a door assembly and the main shell part assembly process for configuring the main shell parts consisting of side panels, roof panels, trunk lids, etc. are carried out independently and in parallel. , further comprising a step of assembling a door assembly and a vehicle front section to the main shell portion to form a vehicle upper part, and a step of interconnecting a floor assembly, a front suspension assembly, a rear suspension assembly, and an indoor unit. 1. A method for assembling an automobile, which comprises performing the steps of constructing a lower part of the vehicle in parallel, and finally assembling the upper part of the vehicle and the lower part of the vehicle to each other.