JPS6411515B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for instructing work in an automobile assembly process, and more particularly to a method for instructing assembly work of parts to be assembled using color display.

BACKGROUND ART In the automobile assembly process, particularly the body assembly process, a so-called mixed production system is adopted in which multiple types of automobiles with different specifications, models, destinations, etc. are assembled on a common line. In this case, bodies with different specifications, models, destinations, etc. are put into the assembly line based on a work instruction sheet created in accordance with a predetermined production plan, and each part is assembled on the line. In the installation process, parts to be assembled to the body are prepared based on the work instruction sheet distributed in advance, and parts to be assembled that match the work slip suspended on the corresponding body that has been transported are prepared. It is assembled into the corresponding body. Note that the parts to be assembled here refer to relatively large parts such as fenders, doors, hoods, backdoors, etc.

For this reason, in each parts assembly process, although the corresponding parts to be assembled are prepared in advance from among various parts according to the assembly order listed in the work instruction table, Check each time whether the body matches what is written on the work instruction sheet, and then read the work sheet hanging on the body and give instructions for the parts to be assembled according to the work sheet. It is necessary to do it. This is because, for example, there is a case where an urgently ordered car is produced in the middle of the assembly order determined in advance by the work instruction sheet, so the assembly order in the work instruction sheet and the actual assembly order do not correspond. This is because there will be times when it will no longer be possible. In such a case, changes in the assembly order are immediately communicated to each parts assembly process, but if this is not done thoroughly, cars with different specifications or models, or defective products, will be produced. In addition, even if this assembly order does not change, if workers in the parts assembly process misread the work instruction sheet or work sheet, they will select or attach the parts to be assembled incorrectly, resulting in the production of defective products. You end up doing it.

For this reason, in the past, as mentioned above, workers read the specifications, model, etc. from the work sheet suspended from the body being transported on the line, and then compared this with the work instruction sheet to ensure that the two matched. The instructions for assembling the parts are given for the first time after seeing the details.

However, the visibility of the work instruction sheets and work sheets mentioned above is not good, and the reading of them is intuitive for workers, so it is difficult to read them incorrectly, especially when there are multiple instructions on the work instruction sheets and work sheets. Moreover, there is a problem in that it is a heavy burden on the worker, as it is necessary to check the work instruction sheet and work sheet again every time the assembly work is completed.

In view of the above-mentioned points, the present invention has been made with the object of providing a work instruction method that makes it possible to give clear and accurate work instructions in particular. Focusing on a color identification method with excellent visibility, we apply different colors of paint to pre-assembled parts such as fenders, doors, and backdoors in predetermined positions depending on the specifications and model. In the same way, paint is applied to predetermined locations and the specifications, models, etc. are color-coded using the coating colors, so that the specifications, models, etc. of these bodies and various assembled parts can be identified by the coating colors. By matching and matching the paint color on the body side and the paint color on each assembled component side in each part assembly process, it is possible to give clear work instructions at a glance.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a diagram showing an example of an automobile body assembly process to which the present invention is applied. In the figure, 1 is a conveyor that forms the center of the automobile assembly line, 2 is a body that is sequentially conveyed by the conveyor 1, 3 is a front fender as a part to be assembled to the body 2, 4 is a door, Reference numeral 5 also designates a back door, and the front fender 3, door 4, and back door 5, which are the parts to be assembled, are stored on the side of the conveyor 1 in an aligned state.

First, the body 2 is coated with paint 6 at required three locations on the body 2 in the previous type identification process.
After 7 and 8 are sprayed and applied, they are carried into the parts assembly process A. These paints 6, 7, 8
is based on the specifications, model, etc. of body 2.
Front fender 3 and door 4 assembled on
When selecting the front fender 3, door 4 and back door 5,
This is to specify and identify the type of. That is, the paint 6 applied to the front end portion of the roof 2a indicates the type of front fender 3 to be attached to the body 2. For example, the paint 6 applied to the front end portion of the roof 2a indicates the type of front fender 3 to be attached to the body 2.
When a is installed, the paint 6 is white, and similarly, the front fender 3 of type B is attached to the body 2.
If b is installed, paint 6, such as yellow,
are each color-coded. Moreover, the paint 7 applied to the front pillar 2b is
This indicates the type of door 4 attached to the body 2. For example, when an F type door 4a is attached to the body 2, the paint 7 is red;
When the door 4b is attached, the paint 7 is colored differently, such as blue. Similarly, the paint 8 applied to the roof side 2c indicates the type of the back door 5. For example, if the back door 5a attached to the body 2 is of the K type, it is green, and similarly, if the back door 5b is of the L type, it is green. The paint 8 is divided into colors such as brown.

On the other hand, the front fender 3, door 4 and back door 5 are stored on the line side.
are arranged in the order listed in the work instruction table mentioned above. These front fenders 3, doors 4, and back doors 5 are color-coded according to their specifications, model, etc. in a previous process, and then transported to a parts assembly process A. In other words,
A paint 16 is applied to each of the front fenders 3. For example, the front fender 3 of type A
In case of a, white, B type front fender 3
In case b, the paint 16 is divided into different colors such as yellow. Similarly, paint 17 is applied to each of the doors 4, for example, F.
The paint 17 is colored differently, such as red for the type door 4a and blue for the G type door 4b. Similarly, a paint 18 is applied to each of the back doors 5. For example, the back door 5a of the K class is painted green, and the back door 5b of the L class is painted brown.
are color-coded.

Here, the coating device 9 in the type identification step
2 and 3, the coating device 9 is disposed on the conveyor 1 before the parts assembly process A, and 10 is a gate-shaped coating device 9. Frame, 11, 12, 13
is a spray gun attached to the frame 10,
14 is a solenoid valve, 15 is a paint tank, 1
9 is a barcode reader, and 20 is a calculation device.
Further, 21 is a barcode label attached to the wheel house part of the body 2. This barcode label 21 replaces the work sheet mentioned above, and contains various vehicle type information such as specifications, model, destination, chassis number, etc. A bar code is attached to each body. When the body 2 transported by the conveyor 1 reaches a predetermined position, the barcode reader 19 reads the barcode label 21, and the barcode information is decoded by the arithmetic unit 20.
This decoded content is individually decoded for each part to be assembled, that is, for each front fender 3, door 4, and back door 5, so that the proper front fender 3, door 4, and back door 5 to be attached to the body 2 are decoded individually. Since the type of the spray gun is specified, one of the spray guns 11, 12, and 13 is activated individually via the solenoid valve 14, and the front fender is sprayed at three locations on the body 2, as shown in FIG. 3. Paint 6 with a color that matches the type of door 4 and back door 5.
7 and 8 will be sprayed and applied. For example, if the front fender 3a to be attached to the body 2 is specified as type A, the door 4a as type F, and the back door 5a as type K in the barcode information of the barcode label 21, the paint 6 is White, paint 7 is red, and paint 8 is green, which are sprayed on each of them.

Therefore, in the present invention, as shown in FIG. 1, it is assumed that the body 2 has been delivered to the parts assembly process A, and that the paint 6 is white, the paint 7 is red,
Assuming that the paint 8 is green, the worker in the parts assembly process A confirms the color of the paint 6 and installs the front fender 3a coated with the paint 16 of the same color.
It is only necessary to select one of the front fenders 3 and assemble it to the body 2. The same goes for the door 4 and the back door 5; the door 4a coated with the paint 17 of the same color as the paint (red) 7 is selected, and the back door 5a coated with the paint 18 of the same color as the paint (green) 8 is selected. All you have to do is select them and assemble them to the body 2.

It should be noted that the paints 6, 7, 8 and 16, 17, 18 do not need to be applied in large amounts because it is sufficient to recognize their colors. In addition, it is desirable to use water-soluble paints in about seven colors as the above-mentioned paints, so that when the body 2 is delivered to the body painting process after completing the assembly of each part, the above-mentioned paints can be applied by surface treatment. The paint will be erased.

As described above, according to the present invention, since the work instructions are provided by color identification, visibility is excellent, and the contents of the work instructions can be read at a glance. At the same time, assembly reliability can be improved by preventing assembly due to misreading of work instructions.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the configuration of the main parts of the automobile assembly process to which the method of the present invention is applied, Fig. 2 is a perspective view showing the type identification process using paint, and Fig. 3 is a view taken in the direction of the arrow in Fig. 2. It is. 2...Body, 3, 3a, 3b, 3c, 3d,
3e, 3f...Front fender (assembled parts), 4, 4a, 4b, 4c, 4d, 4e, 4f,
4g...Door (parts to be assembled), 5, 5a, 5b,
5c, 5d, 5e... Back door (assembled parts),
6, 78, 16, 17, 18...Paint, A...Parts assembly process.

Claims (1)

[Claims] 1. When assembling parts to be assembled that are necessary for the body of an automobile being transported on an assembly line, prior to assembling the parts to be assembled, the assembly of the parts to be assembled of the body is carried out on the assembly line. Paints of different colors are applied near the mounting location to indicate the types of specifications, models, etc. of the body, and the parts to be assembled are painted with different colors depending on the body specifications, model, etc. Different colors of paint are applied depending on the specifications, model, etc. of the mating body to be installed, and the specifications, model, etc. of the mating body are displayed in color, and the color display on the body side and the part to be assembled are 1. A work instruction method in an automobile assembly process, which comprises assembling the parts to be assembled onto a mating body so that the color markings match, and then erasing the color markings of the body and the parts to be assembled.