JP2002362443A - Assembly specification control method of vehicle assembly line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably control the relationship of the vehicle body model, the engine model, and the transmission model on a synchronous sub assembly line, and to prevent a mistaken engine assembly from flowing outside of a main assembly line. SOLUTION: The first relationship is checked by comparing the engine model code recorded in an engine E with the vehicle body model code stored in advance before assembling a transmission M with the engine E in the sub assembly line Ld. The second relationship is checked by comparing the engine model code recorded in the engine E with the transmission model code recorded in the transmission M after assembling the transmission M with the engine E in the sub assembly line Ld. If the first and second relationship are adequate, an engine assembly EA with the engine E coupled with the transmission M is assembled with the vehicle body B in the main assembly line Lm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for managing an assembly specification of a vehicle assembly line in which an engine assembly in which a transmission is assembled to an engine on a sub-assembly line is supplied to a main assembly line and assembled to a vehicle body.

[0002]

2. Description of the Related Art A plurality of types of automobile bodies are caused to flow in a predetermined order along a main assembly line, and a plurality of types of engine assemblies are stocked from an engine assembly stocking site to accommodate a body flowing on the main assembly line. By selecting an engine assembly of a predetermined model, supplying the engine assembly to the engine assembly assembling station on the main assembly line, and assembling it to the vehicle body, the correspondence between the vehicle body model and the engine assembly model is ensured and incorrect assembly What prevents the occurrence is disclosed in
-29504.

[0003]

By the way, in the above-mentioned prior art, an engine assembly in which a transmission is assembled to an engine is stored in an engine assembly stocking place. However, the transmission is assembled to the engine in a sub-assembly line. When supplying the engine assembly directly to the main assembly line and assembling it to the vehicle body, it is necessary to appropriately manage the correspondence between the vehicle body model, the engine model, and the transmission model to prevent erroneous assembly. For this reason, the above-mentioned conventional apparatus performs the first check when assembling the engine and the transmission, and further performs the second check at the engine assembly mounting station when assembling the engine assembly to the vehicle body. There is a problem that various checks need to be performed immediately before the check work becomes complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the correspondence between a vehicle model, an engine model, and a transmission model is surely managed on a sub-assembly line that synchronizes the engine assembly. The purpose is to prevent spillage into the line.

[0005]

To achieve the above object, according to the first aspect of the present invention, an engine assembly having a transmission assembled to an engine on a sub-assembly line synchronized with a main assembly line is provided. In the assembly specification management method of a vehicle assembly line to be supplied to an assembly line and assembled to a vehicle body, a vehicle body model code of a vehicle body to be put into a main assembly line, and an engine model code and a transmission model code corresponding to the vehicle body model code are determined. The engine model code corresponding to the vehicle body model code is stored in advance in the storage means, and the engine model code corresponding to the vehicle body model code is recorded in the engine inserted into the sub-assembly line. Record the model code and sub-assembly Before assembling the transmission to the engine in the vehicle, the engine model code recorded on the engine is read and compared with the previously stored body model code to confirm the first correspondence between the two model codes, and After assembling the transmission to the engine on the assembly line, the engine model code recorded on the engine and the transmission model code recorded on the transmission are read and compared.
A second correspondence between the two model codes is confirmed, and when the first and second correspondences are proper, the engine assembly combining the engine and the transmission is assembled to the vehicle body on the main assembly line. An assembly specification management method for a vehicle assembly line is proposed.

According to the above configuration, before assembling the transmission to the engine on the sub-assembly line, the engine model code recorded on the engine is compared with the body model code stored in advance to determine the first correspondence between the two model codes. After assembling the transmission to the engine, the engine model code recorded on the engine and the transmission model code recorded on the transmission are compared to confirm a second correspondence between the two model codes. When the correspondence between the two is proper, that is, when the correspondence between the body model code, the engine model code and the transmission model code is proper, the engine assembly is supplied from the sub-assembly line to the main assembly line to synchronize the engine assembly. Because it is assembled, the body,
An erroneous assembly of the engine and the transmission can be reliably prevented. Moreover, the body,
Since the correspondence between the engine and the transmission can be confirmed, not only the work is easy, but also the abnormality can be found before the engine assembly is assembled to the vehicle body, so that the response to the abnormality is easy.

According to the second aspect of the present invention,
2. The vehicle assembly line according to claim 1, wherein the engine number and the transmission number of the engine assembly are recorded in association with the vehicle body number when the first and second correspondences are proper. An assembly specification management method is proposed.

According to the above configuration, when it is confirmed that the correspondence between the body model code, the engine model code and the transmission model code is appropriate, the engine number and the transmission number are recorded in association with the body number. The combination of the body number, engine number, and transmission number of the assembled vehicle can be easily grasped.

According to the third aspect of the present invention,
The vehicle assembly line according to claim 1, wherein, when the first correspondence is proper, a specification of a transmission to be mounted on the engine is displayed on the engine. According to this, before the transmission is assembled to the engine, if the correspondence between the engine model code and the body model code is confirmed to be appropriate, the specification of the transmission to be assembled is displayed on the engine, so the work of assembling the transmission to the engine Checking can be facilitated.

According to the invention described in claim 4,
In addition to the configuration of claim 1, an assembly specification management method for a vehicle assembly line, characterized by recording an engine model code and a transmission model code corresponding to a vehicle body model code on a recording medium, is proposed.

According to the above construction, the engine model code and the transmission model code corresponding to the vehicle body model code are recorded on the recording medium, so that not only the reading thereof is easy, but also reading errors can be reliably prevented. .

The bar code of the embodiment corresponds to the recording medium of the present invention, and the bare engine E of the embodiment corresponds to the engine of the present invention.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on embodiments of the present invention shown in the accompanying drawings.

FIGS. 1 to 8 show an embodiment of the present invention. FIG. 1 is an overall configuration diagram of a vehicle assembly line, FIG. 2 is an explanatory diagram of a vehicle body flow file, and FIG. 3 is an explanatory diagram of an engine number file. , FIG. 4 is an explanatory view of a transmission conversion table, FIG. 5 is an explanatory view of a vehicle / bear engine specification check,
FIG. 6 is an explanatory diagram of a bare engine / transmission specification check, FIG. 7 is a flowchart of a vehicle body / bare engine specification check, and FIG. 8 is a flowchart of a bare engine / transmission specification check.

In FIG. 1, reference numeral Lm denotes a main assembly line of an automobile. A vehicle body B inserted from a vehicle body insertion position 11 at an upstream end is connected to a bare engine E and a transmission M while flowing through the main assembly line Lm. Various parts including the combined engine assembly EA are assembled and paid out from the vehicle body discharging position 12 at the downstream end.
Reference numeral Ld denotes a sub-assembly line synchronized with the main assembly line Lm. The sub-assembly E is assembled on another line and is carried on the overhead conveyor 14 from the engine shipping site 13 by the overhead conveyor 14, and is assembled on another line to align the transmission. The transmission M carried by the bogie 16 from the place 15 is assembled, and other auxiliary equipment is assembled. The bare engine E refers to an engine in a state before mounting various accessories including the transmission T. And an engine assembly EA that integrates the bare engine E, the transmission M, and accessories.
Is the overhead conveyor 1 from the sub-assembly line Ld.
7 and is carried into the engine assembly assembling station 18 of the main assembly line Lm, where it is assembled to the vehicle body B flowing on the main assembly line Lm.

At this time, a plurality of types of vehicle bodies B flow on the main assembly line Lm, and the sub-assembly line L
d, a plurality of types of bare engines E and transmissions M are put in, so that finally the main assembly line L
In the engine assembly assembling station 18 of m, it is necessary to perform management so that the three models of the vehicle body B, the bare engine E, and the transmission M are correctly matched.

[0017]

[Table 1]

In order to perform the above management, a "vehicle flow file" is created for the vehicle B actually put into the main assembly line. As shown in FIG. 2 and Table 1, the “vehicle body flow file” includes, for each vehicle body B actually loaded into the main assembly line Lm, its loading number (the order in which the vehicle bodies B were loaded into the main assembly line Lm). ), The vehicle model code and the vehicle number, and the engine model code and the transmission model code corresponding to the vehicle body B, and the engine number and the transmission number corresponding to the vehicle body B are initially blank. .

An "engine number file" is created for each bare engine E. As shown in FIG.
The "engine number file" contains each bare engine E
The engine model code corresponding to the engine number and the transmission model code are written. Then, a bar code label on which the bar code of the engine number of each bare engine E is printed is issued.

On the screen of the terminal 19 for instructing the input of the bare engine of the system provided at the engine shipping site 13, the input number of each vehicle B written in the "vehicle flow file", the vehicle model code, and the vehicle number And the engine model code are displayed. Therefore, the operator selects the bear engine E of the model code displayed on the screen, attaches a bar code label on which a bar code of the engine number corresponding to the bare engine E is printed, and then hangs the bar code label on the overhead conveyor 14. To the sub-assembly line Ld.
As a result, the bear engine E corresponding to each vehicle body B is supplied to the sub-assembly line Ld in accordance with the order of the vehicle bodies B flowing on the main assembly line.

A "transmission conversion table" is created for each transmission M. As shown in FIG. 4, "Transmission conversion table"
Is for associating a transmission model code with a three-digit alphanumeric character on the basis of connection information between the bare engine E and the transmission M, and a barcode label on which a three-digit alphanumeric barcode is printed is issued. .

Transmission transmission instruction printer 2 of the system provided in transmission alignment field 15
From 0, the input number of each vehicle body B written in the "vehicle flow file", the transmission model code,
The body model code and the engine model code are printed out. Therefore, the operator selects the transmission M of the model code printed out, affixes a bar code label printed with a three-digit alphanumeric bar code corresponding to the transmission M,
And paid out to the sub-assembly line Ld. Thereby, the transmissions M corresponding to the respective vehicle bodies B are supplied to the sub-assembly line Ld in accordance with the order of the vehicle bodies B flowing on the main assembly line.

The sub-assembly line Ld is provided with a vehicle / engine combination specification check terminal 21, and FIG.
It is checked based on FIG. 7 whether the connection specification between the vehicle body B and the bare engine E is correct.

That is, before assembling the transmission M to the bare engine E, the engine number is read from the bar code sheet attached to the bare engine E using a bar code reader in step S1. By using the barcode in this manner, the engine number can be read easily and without error. If reading is not possible at this time, the engine number is manually input in step S2.
In the following step S3, the engine model code is collated from the engine number with reference to the "engine number file". At this time, if there is an abnormality such as a mismatch between the collated engine model code and the actual engine model code, a process such as replacement with a spare bare engine E is performed in step S4. In the following step S5, the engine model code is collated from the engine number with reference to the "vehicle flow file". At this time, if there is an abnormality such as a mismatch between the collated engine model code and the actual engine model code, step S
In step 6, processing such as replacement with a spare bare engine E is performed.

In the subsequent step S7, the collation is completed and the vehicle B
When it is confirmed that there is no error in the correspondence between the engine and the bare engine E, the assembling specifications of the bare engine E and the transmission M are printed out from the assembling specification issuing printer 22 provided in the sub-assembly line Ld, The worker assembles the transmission M to the bare engine E based on the specification. Then, the engine number is entered in the engine number column of the "vehicle flow file" (see Table 1).

The sub-assembly line Ld is provided with an engine / transmission coupling specification check terminal 23, which checks whether the coupling specification between the bare engine E and the transmission M is correct based on FIGS. 6 and 8. Is done.

That is, after assembling the transmission M to the bare engine E, the engine number is read from the bar code sheet attached to the bare engine E using a bar code reader in step S11. If reading is not possible at this time, the engine number is manually input in step S12. In the following step S13, the transmission number is read from the barcode sheet attached to the transmission M using a barcode reader. If reading is not possible at this time, step S14
Enter the transmission number manually with. In the following step S15, three-digit alphanumeric characters are read from the barcode sheet attached to the transmission M using a barcode reader. If you can not read at this time,
In step S16, three-digit alphanumeric characters are manually input.

In the following step S17, the three-digit alphanumeric characters are rewritten to the transmission model code with reference to the "transmission conversion table". At this time, if there is an abnormality such as a mismatch between the collated transmission model code and the actual transmission model code, a process such as replacement with a spare transmission M is performed in step S18. In the following step S19, the transmission model code corresponding to the engine model code is read by referring to the "engine number file", and the read transmission model code is compared with the transmission model code rewritten from the three-digit alphanumeric characters in step S17. I do. That is, in step S19, the engine model code and the transmission model code are substantially compared. At this time, if there is an abnormality such as a mismatch between the transmission model code read from the “engine number file” and the actual transmission model code, a process such as replacing with a spare transmission M is performed in step S20. And step S3
If the verification is completed in step 1 and it is confirmed that there is no error in the correspondence between the bare engine E and the transmission M, OK is displayed on the system and the transmission is displayed in the transmission number column of the "body flow file". Enter the number (see Table 1).

As described above, it is first confirmed on the sub-assembly line Ld that there is no error in the correspondence between the vehicle body B and the bare engine E, and then that there is no error in the correspondence between the bare engine E and the transmission M. When the engine assembly EA is finally assembled to the vehicle body B at the engine assembly assembly station 18 of the main assembly line Lm, there is no error in the correspondence between the vehicle body B, the bare engine E, and the transmission M. Guaranteed.

As shown in Table 1, the "body flow file"
The entry number, body type code, body number, engine model code and transmission model code are written from the beginning. When paying out the bare engine E from the engine shipping place 13, the engine number is temporarily written in the engine number column, and when the vehicle body / bare engine specification check is completed in the sub-assembly line Ld, the engine number is temporarily written in the engine number column. And the bare engine /
When the transmission specification check is completed, the engine number is formally written in the engine number field, and the transmission number is formally written in the transmission number field. Therefore, the combination of the vehicle number, the engine number, and the transmission number of the completed vehicle can be easily confirmed by looking at the completed “vehicle flow file”.

Although the embodiments of the present invention have been described in detail, various design changes can be made in the present invention without departing from the gist thereof.

For example, in the embodiment, an optically readable recording medium (bar code) is exemplified as a recording medium, but a magnetically readable recording medium may be employed.

[0033]

As described above, according to the first aspect of the present invention, before assembling the transmission to the engine on the sub-assembly line, the engine model code recorded on the engine and the vehicle model code stored in advance are stored. After confirming the first correspondence between the two model codes by comparison, and after assembling the transmission into the engine, the engine model code recorded on the engine and the transmission model code recorded on the transmission are compared to determine the first model code of both model codes. 2 is confirmed, and when the first and second correspondences are appropriate, that is, the vehicle body model code,
When the correspondence between the engine model code and the transmission model code is correct, the engine assembly is supplied from the sub-assembly line that synchronizes the engine assembly to the main assembly line and assembled to the vehicle body, so that incorrect assembly of the vehicle body, engine, and transmission is reliably prevented. be able to. In addition, it is possible to confirm the correspondence between the vehicle body, the engine, and the transmission only on the sub-assembly line, so that the work is easy, and also, since the abnormality can be found before the engine assembly is assembled to the vehicle body, it is easy to respond to the abnormality. .

According to the second aspect of the present invention,
When it is confirmed that the correspondence between the body model code, the engine model code, and the transmission model code is appropriate, the engine number and the transmission number are recorded in association with the body number. The combination of the engine number and the transmission number can be easily grasped.

According to the third aspect of the present invention,
Before the transmission is assembled to the engine, if the correspondence of the engine model code to the body model code is confirmed to be appropriate, the specifications of the transmission to be assembled are displayed on the engine, making it easy to check the work of assembling the transmission to the engine. Can be

According to the invention described in claim 4,
Since the engine model code and the transmission model code corresponding to the vehicle body model code are recorded on the recording medium, not only can they be easily read, but also reading errors can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a vehicle assembly line.

FIG. 2 is an explanatory diagram of a vehicle body flow file.

FIG. 3 is an explanatory diagram of an engine number file.

FIG. 4 is an explanatory diagram of a transmission conversion table.

FIG. 5 is an explanatory diagram of a vehicle / bear engine specification check.

FIG. 6 is an explanatory diagram of a bare engine / transmission specification check.

FIG. 7 is a flowchart of a vehicle / bear engine specification check.

FIG. 8 is a flowchart of a bare engine / transmission specification check.

[Explanation of symbols]

 B Body E Bear Engine (Engine) EA Engine Assembly Ld Sub Assembly Line Lm Main Assembly Line M Transmission

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Takayuki Otake 1-10-10 Shin-Sayama, Sayama-shi, Saitama F-term (reference) 3D114 AA03 BA26 BA29 CA07 CA03 JA13 JA13

Claims (4)

[Claims] An engine assembly (EA) in which a transmission (M) is mounted on an engine (E) on a sub-assembly line (Ld) synchronized with a main assembly line (Lm).
Is supplied to the main assembly line (Lm) and is assembled to the vehicle body (B) in the assembly specification management method for the vehicle assembly line. The engine model code and the transmission model code corresponding to the vehicle body model code are stored in the storage means in advance, and the engine model code corresponding to the vehicle body model code is stored in the engine (E) to be put into the sub-assembly line (Ld). At the same time, the transmission model code corresponding to the engine model code is recorded on the transmission (M) input to the sub-assembly line (Ld), and the transmission (M) is transmitted to the engine (E) on the sub-assembly line (Ld). Before assembling, read the engine model code recorded on the engine (E) The first correspondence between the two model codes is confirmed by comparing with the previously stored body model code, and after the transmission (M) is assembled to the engine (E) on the sub-assembly line (Ld), By reading and comparing the engine model code recorded on the engine (E) and the transmission model code recorded on the transmission (M), a second correspondence between the two model codes is confirmed. When the correspondence is proper, the engine assembly (EA) combining the engine (E) and the transmission (M) is connected to the main assembly line (Lm).
A method for managing assembly specifications of a vehicle assembly line, wherein the assembly specification is attached to a vehicle body (B). 2. The system according to claim 1, wherein when the first and second correspondences are appropriate, an engine number and a transmission number of an engine assembly (EA) are recorded in association with a vehicle body number. The assembly specification management method for the vehicle assembly line described in the table. 3. The engine (E) according to claim 1, wherein when the first correspondence is appropriate, the specification of the transmission (M) to be assembled to the engine (E) is displayed on the engine (E). The assembly specification management method for the vehicle assembly line described in the table. 4. The assembly specification management method for a vehicle assembly line according to claim 1, wherein an engine model code and a transmission model code corresponding to the vehicle body model code are recorded on a recording medium.