JP3041489B2 - Production line work instruction device and transfer control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a production line for producing a finished product by performing a process of selectively combining various parts in a plurality of processes, and more particularly to a processing operation in each process and a transfer between a warehouse and each process. Implementation of a production system that can perform work efficiently

[0002]

2. Description of the Related Art In a machining line which starts from one kind of material and sequentially performs machining such as cutting on the material to complete a product, a process chart as shown in FIG. 10 is created. The machining line is up and running. In other words, in the figure, the product with the product number "1" is completed by performing machining A in step "1", performing machining B in step "2", and finally performing cleaning in step "3". So,
Hereinafter, the processing procedure of the part numbers “2”, “3”, “4”... Is shown. As described above, in the case of a machining line, since there is no step of obtaining a semi-finished product by combining a plurality of parts, it is sufficient for the semi-finished product in each step to indicate the part number of the part as a starting point. For example, in the process "2" for producing the product of the product number "1", "the semi-finished product of the product number" 1 "in the previous process" 1 "is transported to the own process" 2 "." A semi-finished product with the product number "1" is created by performing machining B on the semi-finished product with the product number "1". "Then, a semi-finished product with the product number" 1 "is transported to the next process" 3. " A series of transport and processing operations are performed by indicating the product number of the component “1” and issuing a work instruction.

[0003]

Incidentally, in the case of producing a finished product by performing a process of selectively combining various parts in a plurality of processes, such as a production line of an automobile, a certain process is performed up to the preceding stage. By combining a plurality of semi-finished products or parts obtained in the above step (by performing processes such as assembly and welding), a new semi-finished product is obtained. Therefore, if a part number is assigned only to a part of the minimum unit as in the above-mentioned machining line, a semi-finished product can only be specified by a plurality of part numbers of the parts constituting the semi-finished product. This complicates the process of creating the process chart,
The efficiency of the transport and processing operations has been impaired.

The present invention has been made in view of such circumstances, and a work instruction apparatus for efficiently operating a production line for producing a finished product by performing a process of selectively combining various parts in a plurality of processes. And a transport control device.

[0005]

SUMMARY OF THE INVENTION Therefore, the first aspect of the present invention has been described.
In the invention, in a production line for producing a finished product by performing a process of selectively combining various parts placed in a warehouse in a plurality of steps, a product number indicating a type of the parts is set, and the plurality of steps are performed. A part number is set for each type of semi-finished product to be processed at each stage, and a supply source identification code indicating a warehouse and a process for supplying these parts and semi-finished products is set in accordance with the part numbers of the parts and semi-finished products,
A supply destination identification code indicating a process in which the part and the semi-finished product are to be combined and processed next is set according to the part number of the component and the semi-finished product, and a warehouse and a process indicated by the supply source identification code based on the set contents are set. And the part number corresponding to the supply source identification code is transmitted, and the part number corresponding to the supply destination identification code and the supply source identification code corresponding to the part number are transmitted to the process indicated by the supply destination identification code. A high-level system having transmission means; and display means provided for each of the warehouse and the plurality of processes and displaying the content transmitted from the high-level system, and instructing a machining operation based on the display content of the display means. At the same time, the user instructs the work of transporting the parts and semi-finished products. In addition, based on the same setting contents, a part number corresponding to the source identification code and a destination identification code corresponding to the part number are transmitted to the warehouse and the process indicated by the source identification code, and the destination identification code is indicated. And a display system provided for each of the warehouse and a plurality of steps, for displaying the contents transmitted from the host system. In this case, a processing operation is instructed on the basis of the display contents of the display means, and a conveying operation of the parts and semi-finished products is instructed.

According to a second aspect of the present invention, the first aspect is provided.
The same transmission means as the invention is provided in the host system. And a transporting means for transporting the parts and semi-finished products between the warehouse and the plurality of processes in response to a transport command input, and further, for each of the warehouse and the plurality of processes, a supply source based on the contents transmitted from the upper system. A request command for parts and semi-finished products of the corresponding part number is output to the warehouse and process indicated by the identification code, and when the request command is input, the parts and semi-finished products of the requested part number are output to the process that outputs the request command. A means for outputting a transfer command for transferring to the transfer means is provided. In addition, for each of the warehouse and the plurality of processes, based on the contents transmitted from the higher-level system, a supply command of a part and a semi-finished product of a corresponding part number for the process indicated by the supply destination identification code is output, and the supply command is It is provided with means for outputting to the transport means a transport command for transporting a part or semi-finished product of a part number to be supplied when supplied from a warehouse or a process for outputting a supply instruction.

[0007]

According to the structure of the first aspect of the invention, in the host system, not only the component which is the minimum unit of the finished product but also the semi-finished product obtained in each step is regarded as a single component. Is assigned a product number. At the same time, a code for identifying the source of supply (a warehouse for parts, a process for preparing semi-finished products for semi-finished products) is assigned to each product number. Further, a code for identifying the supply destination (process to be processed next) is given to each product number.
Then, the upper system transmits the part numbers of the parts or semi-finished products necessary for assembly in the own process and the supply source identification code to each process and the warehouse, and the part numbers of the semi-finished products or parts assembled in the own process. In each step, by displaying the contents of transmission on the display means, it is possible to easily convey parts or semi-finished products of the product number required for assembly in the own process from the process or warehouse indicated by the supply source identification code. Further, the part numbers of the parts and semi-finished products required for the assembly and the part numbers of the semi-finished products to be assembled are displayed, so that the setup of the processing can be performed efficiently. Also, the upper system transmits to each process and the warehouse the part numbers of the components or semi-finished products required for the assembly in the own process, and also transmits the product numbers of the semi-finished products or parts assembled in the own process and the supply destination identification code thereof. . In each process and the warehouse, by displaying the transmission contents on the display means, it becomes possible to easily transport the parts or semi-finished products of the product number assembled in the own process to the process indicated by the supply destination identification code. In addition, the part numbers of the parts and semi-finished products required for assembly and the part numbers of the semi-finished products to be assembled are displayed, so that the setup of processing and the like can be performed efficiently.

Further, according to the configuration of the second invention, in each step, the source of the parts or semi-finished products necessary for the assembly in the own process can be known from the transmission contents by the supply source identification code. A transfer request command can be issued to the warehouse or the process indicated by the supply source identification code to be transferred to the process. Then, the process or the warehouse receiving the transfer request command can issue a transfer command to the transfer means so as to supply the semi-finished product or component created in the process to the requested process. Further, in each process and warehouse, the supply destination of the parts or semi-finished products assembled in the own process can be known by the supply destination identification code from the transmission contents, so that a supply command can be issued to the process indicated by the supply destination identification code. Then, the process receiving the supply command can issue a transfer command to the transfer means so as to supply a semi-finished product or a part from the process of the supply source or the warehouse to the own process. This makes it possible to easily and efficiently supply necessary parts or semi-finished products in each step.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a production line work instruction device and a transfer control device according to the present invention.

In the embodiment, an automobile production line is assumed as the production line. FIG. 2 conceptually shows a line configuration of a production line for producing automobiles.
As shown in the figure, an automatic warehouse 0 in which various parts, which are the minimum units for producing an automobile, are placed, and the parts are automatically moved in and out by a transfer control device 9 described later.
And a predetermined part is conveyed from the automatic warehouse 0, and a kit place 1 for palletizing these predetermined parts collectively.
A set of parts conveyed from the automatic warehouse 0 and a set of parts palletized and conveyed in the kit place 1 (this is called a semi-finished product for convenience) is assembled and assembled by bonding or the like to produce a semi-finished product such as an engine. A main line 3 for producing a car as a finished product by further assembling the sub line 2, the parts transported from the automatic warehouse 0, the semi-finished products palletized in the kit place 1, and the semi-finished products assembled in the sub line 2.
It is composed of Note that, in the embodiment, for the sake of convenience of description, the number of sub-lines 2 is one, and the line configuration is simplified. The automatic warehouse 0, the kit site 1, the sub-line 2, and the main line 3 are connected to each other by a transport path of an automatic guided vehicle that transports parts and semi-finished products according to a transport command. The traveling of the automatic guided vehicle is controlled by a transfer control device 9 described later with reference to FIG. The kit hall 1 has transportation stations 110, 120, 130, and 140 according to the type of parts transferred from the automatic warehouse 0, and the subline 2 has semi-finished products and the automatic warehouse 0 transported from the kit warehouse 1. The main line 3 has semi-finished products conveyed from the sub-line 2 and semi-finished products conveyed from the kit place 1 and conveyed from the automatic warehouse 0 in accordance with the type of parts conveyed from the Stations 310 and 32 of the carrier according to the type of parts to be
0, 330.

FIG. 1 shows the system configuration of the production line shown in FIG. 2. In general, data necessary for an automatic warehouse 0 is prepared based on a production plan of the production line, and at the same time, a kit site 1, An upper system 4 that creates execution plan data for each process required for each process of the sub-line 2 and the main line 3 and controls and controls the automatic warehouse 0, the kit hall 1, the sub-line 2, and the main line 3; A main line management system 5 for managing the main line 3 on the basis of the contents of the execution plan data prepared in the above, and a sub line management system for managing the sub line 2 on the basis of the contents of the execution plan data prepared by the upper system 4. 6, a kit place management system 7 for managing the kit place 1 based on the contents of the execution plan data created by the host system 4, and a kit place management system 7 created by the host system 4. Warehousing plan de - automatic warehouse 0 on the basis of the data
Automatic warehouse management system 8 that manages the type, quantity, placement position, etc. of the components in the sub-line, sub-line management system 6, kit place management system 7, and unmanned transportation according to the transportation command output from automatic warehouse management system 8. The transport control device 9 controls the traveling of the vehicle and controls the entry / exit of the automatic warehouse 0 in response to the entry / exit command output from the automatic warehouse management system 8. It should be noted that the systems 4 to 8 are constituted mainly by computers in terms of hardware, and the systems 4 to 8 are wired or wirelessly networked as indicated by solid arrows. That is,
The host system 4 has a transmission unit 41, which transmits execution plan data to each of the systems 5 to 7 and storage plan data to the system 8. The systems 5, 6, and 7 also have transmission units 51, 61, and 71, respectively, and transmit request commands to be described later to lower systems. Systems 5, 6,
Reference numerals 7 and 8 have display units 52, 62, 72 and 82, respectively, for inputting the execution plan data and the storage plan data.
Display the contents of the data on the screen. These display units 52, 6
Reference numerals 2, 72, and 82 are attached to the main line 3, the sub line 2, the kit hall 1, and the automatic warehouse 0 in such a manner as to be easily recognized by the operator.

The processing performed in each of the systems 4 to 8 will be described below with reference to the flowchart of FIG.

First, the processing contents of the host system 4 will be described.

Creation of a Parts Configuration Table Assume that a variety of automobiles such as a part number XXX, a part number YYY, a part number ZZZ... Are produced.

First, a part configuration table showing the flow of parts and semi-finished parts constituting part numbers XXX, part number YYY, part number ZZZ... Is created for each product type based on data relating to parts constituting these products to be produced. . Part number X on behalf
FIG. 4 shows the flow of components and semi-finished products constituting the XX as a component configuration table (FIG. 2 shows a supply route in a line). The numbers in parentheses indicate the identification numbers of the above-mentioned stations where parts or semi-finished products are supplied by the carrier.
That is, the automatic warehouse 0 has the product numbers 01001 to 01007
Are placed, and based on this, the product of the product number XXX is finally lined out on the main line 3.
Here, as is clear from FIG.
A semi-finished product is obtained by combining the parts 1001 and 01002. Here, a new product number 11001 is set for this semi-finished product. In the same way, in kit place 1, part numbers 01004 and 0
The part number 11002 is given to the semi-finished product made by combining the parts 1005 and 01006, and the part number
The product number 12001 is set to the semi-finished product formed by combining the semi-finished product and the part with the product number 01003. Here, the upper two digits of the part and semi-finished product numbers are coded as places where these parts and semi-finished products are obtained and placed as follows.

01 = Automatic warehouse 0 11 = Kit place 1 12 = Sub line 2 (1) Hereinafter, this number is referred to as a supplier identification number. Thus, for example, it is possible to obtain information that the semi-finished product of the product number 12001 is processed and placed on the sub-line 2 indicated by 12.

Further, the three-digit supply destination identification number for identifying the next supply destination, that is, the process to be processed next and the station thereof for each part and semi-finished product number are shown in parentheses in FIG. It is set as shown. Here, the upper one digit number of the three-digit supply destination identification number means the process of the supply destination in the following correspondence.

1 = kit place 1 2 = sub line 2 3 = main line 3 (2) For example, a semi-finished product with a part number 12001 corresponds to a supply destination identification number of 310, and a semi-finished product with a part number 12001 is It is possible to obtain information that the sheet is conveyed to the station 310 specified by 10 of the main line 3 shown. For the other vehicle types YYY, ZZZ,...

Creation of process design data Once the component configuration table classified for each product type is created as described above, the process divided into each of the systems 5 to 7 based on the configuration table is then performed. Design data 5b, 6b, 7b
Is generated as shown in FIG. That is, regarding the process design data 5b for the main line 3,
From the parts configuration table, a part number whose upper one digit of the supply destination identification number is 3 is selected as a part or semi-finished part required for assembly.
From this, for example, regarding product XXX, product number 12001
And part number 11002 and part number 01007 are selected. As shown in the figure, the semi-finished product of the product number 12001 is supplied to the station 310 of the main line 3 and the product 11
002 semi-finished product is the main line 3 station 320
Are supplied to the station 330 of the main line 3 and the part number 120007 is supplied.
The contents of creating a product XXX from the semi-finished products 1 and 11002 and the part with the product number 01007 are digitized. Here, the semi-finished product of the product number 12001 constituting the product XXX is regarded as a “part”. The products YYY, ZZZ,... Are similarly converted into data, and the process design data 5b for the main line 3 is created. Similarly, the process design data 6b for the subline 2 is created. In this case, first, a part number whose upper one digit of the supply destination identification number is 2 is selected from the parts configuration table as a part or a semi-finished part required for assembly.
Next, a part number having a supplier identification number of 12 is selected as a semi-finished product to be assembled from the parts configuration table. As a result, for example, for product XXX, product number 110
01 and 01003 are selected as necessary parts and semi-finished products, and a part number 12001 is selected as a semi-finished product to be assembled. The products YYY, ZZZ,... Are similarly converted into data, and the process design data 6b for the sub-line 2 is created. Hereinafter, similarly, process design data 7b for the kit site 1 is created as shown in FIG.

As described above, the assembling process in one step (for example, the sub-line 2) is performed by combining a plurality of types of parts used for assembling and a part number of semi-finished products regarded as "parts" with 1
It is represented by the part number of the semi-finished product (including product) to be assembled. Also, a semi-finished product (for example, product number 11001) of one step (for example, kit hall 1) is regarded as a “part” in the next process (for example, subline 2), and
Since it is specified by 1001, the connection between the preceding and following processes can be simply expressed as a solid arrow. Conversely, a plurality of arrows are not connected toward the product number 11001 of the sub line 2. When a common part or semi-finished product is used between different types of products, for example, between XXX and YYY, it can be described using the same part number (for example, 11001) as shown by a thick arrow.

Although omitted in the parts configuration table, the number required for assembly is set for each part number in the process design data of FIG. In addition, lead time data indicating the time required for the work, that is, the lead time L / T (minute), is set for each work unit for producing one type of semi-finished product. For example, the process design data 6b for the subline 2 for producing the product XXX includes a lead time of a semi-finished product 12001 with one "part" (semi-finished product considered) 11001 and two components 01003. Information that the assembly processing should be performed in 15 minutes is added. When the process design data 5b, 6b, 7b as described above is created, these data are input to the host system 4 (step 10).
1).

Creation of execution plan data In addition to the process design data created and input in step 101, the production plan data as shown in FIG.
Data 4a is input. As shown in FIG. 6, the production plan data 4a includes various types of products XXX, YYY, ZZZ to be produced.
.., Assembly order (shown as 1, 2, 3,... In FIG. 6) indicating the order in which these products are to be produced, number (simplified to one in the embodiment, but may be plural), This is data describing the scheduled production end time of the product. Based on the input process design data 5b, 6b, 7b and production plan data 4a, as shown in FIGS. 7, 8, and 9, a main line management system 5, a sub line management system 6, a kit place management system. 7 execution plan data 5a, 6
a and 7a are created. That is, as shown in FIG. 7, the execution plan data for the main line is based on the product name shown in the production plan data 4a, its assembling order, its production end time data, and the process design data 5b. -Data 5a is created.
At this time, although not shown in the figure, the scheduled start time and the scheduled end time are set in the execution plan data 5a for each work unit (indicated by the assembly order 1, 2, 3,... In the figure). Become. Further, as shown in FIG. 8, data of the product name, its assembly order, and its scheduled production end time shown in the production plan data 4a.
Based on the data and the process design data 6b, the execution plan data 6a for the sub-line is created. At this time, based on the lead time data shown in the process design data 6b, each of the works (scheduled) is performed so as to meet the scheduled start time of each work shown in the main line execution plan data 5a, which is the subsequent process. The order of assembly order 1, 2, 3,...) Is determined.
A scheduled start time and a scheduled end time are also set for each work unit (not shown). Also, as shown in FIG. 9, the execution plan for the kit site is based on the product name shown in the production plan data 4a, its assembling order, its production end scheduled time data and the process design data 7b. Data 7a is created.
At this time, based on the lead time data shown in the process design data 7b, the execution plan data for the main line, which is the subsequent process, is generated.
The order of each work (shown by kit order 1, 2, 3,... In the figure) is determined so as to be in time for the scheduled start time of each work shown in the data 5a and the sub-line execution plan data 6a. . A scheduled start time and a scheduled end time are also set for each work unit (not shown). Although not shown, as a substitute for the execution plan data for the warehouse management system 8, the storage plan data is based on the production plan data 4a and the process design data 5b, 6b, 7b. Created. The storage planning data is data indicating the part numbers of parts to be prepared for assembling all the products shown in the production planning data 4a. For example, the parts necessary for producing the product XXX are: 01001 to 01007 (step 102). Transmission processing When the execution plan data 5a to 7a and the storage plan data are created as described above, the transmission unit 41 sends the execution plan data 5a, 6a, 7a and the storage plan data.
The processing of transmitting the data to the main line management system 5, the sub line management system 6, the kit place management system 7, and the warehouse management system 8, respectively, is performed (step 10).
3).

Work instructions In each of the systems 5 to 8, a process of displaying the contents of each piece of plan data transmitted from the transmission unit 41 on the display units 52 to 82 is performed (step 104). Based on this display, the operator arranges necessary parts or semi-finished products for each process, or prepares semi-finished products and products XXX, that is, arranges tools and jigs to be used. Here, taking the sub-line 2 as an example, the contents shown in FIG. 8 are displayed.
In addition to arranging the semi-finished product of 01 to be conveyed from the kit site 2 indicated by 11, the parts of the product number
It can be seen that it is sufficient to arrange for the transportation from the automatic warehouse 0 indicated by 1. Here, as a mode of transporting the components and semi-finished products as materials, the semi-finished product (11001) in which the operator manually becomes the material based on the display contents of the display unit 62
And the part (01003) may be conveyed from the previous step. Such manual transfer of the parts or the like as a material is particularly effective when the parts or the like are large and cannot be transferred by an automatic guided vehicle. In addition, the material number (1
1001 and 01003) and the product number (1
According to 2001), arrangement of tools and jigs is properly performed. The pre-processing as described above is quickly and accurately performed, and the first assembling work is performed. Hereinafter, the pre-processing and the work are performed sequentially and rapidly in the assembling order 2, 3, 4,.... Although the sub-line 2 has been described, the contents of the execution plan data transmitted in the main line management system 5 and the kit place management system 7 are similarly displayed on the display units 52 and 72, and pre-processing based on this is performed. The assembly work is performed quickly and accurately. Note that such preprocessing and assembly work may be automatically performed based on the transmitted contents. In addition, the warehouse management system 8
Then, a process is executed to output a storage command to the transport control device 9 so as to store necessary parts based on the contents of the storage planning data displayed on the display unit 82. As a result, the transfer control device 9
As a result, the automatic warehouse 0 is controlled as required, and necessary parts are stored and placed at a predetermined location in the warehouse. Note that such a warehousing operation may be automatically performed based on the transmitted contents (step 105).

Transport control When a part or the like is transported using an unmanned transport vehicle, the following is performed. That is, taking assembling order 1 in the sub-line 2 as an example, a request command of “part number 11001, supply destination is 210” is input by input means such as a keyboard in the sub-line management system 6 by looking at the display contents of the display unit 62. input. This content is transmitted from the transmitting unit 61 to the supplier identification number 1
This is transmitted to the kit place management system 7 indicated by 1. Along with this, "Part number 01003, supply destination is 220"
Is transmitted from the transmission unit 61 to the warehouse management system 8 indicated by the supply source identification number 01. Then, the kit place management system 7 receives the above-mentioned request command, and in response thereto, sends a semi-finished product of the product number 11001 to the station 2 of the sub-line 2 indicated by 210.
A transport command for transporting by the automatic guided vehicle toward 10 is output to the transport control device 9. As a result, the traveling of the automatic guided vehicle is controlled as required, and the semi-finished product of the product number 11001 is transported to the station 210 of the sub line 2. Similarly, in the warehouse management system 8, in response to the input of the request command, the parts of the part number 01003 are unloaded from the automatic warehouse 0, placed on the automatic guided vehicle, and transported toward the station 220 of the sub-line 2 and transported. The command is output to the transport control device 9. As a result, the parts are unloaded from the automatic warehouse 0 and transported to the same station by the automatic guided vehicle.
Main line management system 5, Kit place management system 7
However, similarly, a request command is output to the preceding system,
The pre-stage system outputs a transfer command to the transfer control device 9 in response to the request command. As a result, the necessary material is conveyed quickly and accurately to the subsequent process.

When the execution plan data 6a is input to the sub-line management system 6 instead of transmitting the request instruction via the input operation of the operator, the request instruction is automatically transmitted based on the data. It is also possible to carry out transmission.

Although the system in which the request command is input has been described on the assumption that parts and the like are in stock, the subline management system 6, the kit place management system 7, and the warehouse management system 8, in which the request command is input, have an output. It is conceivable to manage the number of stocks by counting the number of parts and the like, and to set a flag indicating "in stock, no stock". Then, even if the request command is input, if the "out of stock" flag is set, the contents of "rejection" may be sent back to the system that output the request command. Further, it is also possible to output a transfer command to the transfer control device 9 and, when the transfer is completed, send back the information of “conveyed” to the system that has output the request command (step 105).

In the embodiment, the parts required for the assembly and the suppliers of semi-finished products are displayed for each system.
Conversely, the supply destinations of semi-finished products (or parts in automatic warehouses) that have been processed may be displayed for each system. For example, if the kit order 1 of the execution plan data 7a in FIG. 9 is taken as an example, the supply destination identification number 210 (the supply destination is the station 210 of the sub-line 2) corresponding to the semi-finished product 11001 is further data. Will be added. Therefore, when such execution plan data and storage plan data are transmitted to each system, the above work instruction and transport control are performed in the following manner.

Work instructions For example, when the assembly of the semi-finished product (11001) is completed in the kit hall 1, the supply destination (210) of the semi-finished product is recognized by looking at the display contents of the display unit 62. Arrangements are made to supply semi-finished products to this supply destination. In addition, the same applies to the main line 3, the sub line 2, and the automatic warehouse 0.

Transfer control When, for example, the assembly of the semi-finished product (11001) is completed in the kit hall 1, the supply destination (210) of the semi-finished product is recognized by checking the display contents of the display unit 62. Then, a supply command indicating that the semi-finished product is in the “suppliable state” is output to the supply destination. In response to this command, when a destination process (sub-line) becomes necessary, a transport command is output to the feed control device 9 to transport the semi-finished product from the kit site 1 that has output the command. In addition, the same applies to the main line 3, the sub line 2, and the automatic warehouse 0.

The execution plan data 5a of the embodiment is also shown.
7 and the contents of the warehousing plan data are merely examples, and a series of operations such as preprocessing, assembling work, and warehousing of parts can be performed quickly,
In order to carry out the processing accurately, it is also possible to add information such as a product name (name of a part or a semi-finished product) and a type of a jig to the data.

The system of the embodiment is a main system.
Each of the management systems 5 to 8 for the sub, kit, and automatic warehouse is operated by independent execution plan data and storage plan data, so that the functions of each of the management systems 5 to 8 are realized by separate hardware. can do. Therefore, it is possible to easily cope with various production lines having different types and numbers of processes. Further, it is possible to flexibly respond to a change in the configuration of the production line.

The present invention is not limited to a production line of an automobile, but is widely applied to a production line for performing a process of selectively combining various parts in a plurality of processes such as an assembly process and a welding process. It is possible.

[0033]

As described above, according to the present invention, a semi-finished product generated in each process stage is specified by a product number, a source of parts and a semi-finished product as a material in each process and a warehouse, and a semi-finished product to be created. The supply destination (part delivery destination) is identified by a code, and the specified data is distributed to each process and warehouse and sent to each process and warehouse as plan data. Each process and warehouse is transmitted. Since the work instruction and transfer control are performed based on the planned data, a series of works such as transfer and processing can be performed quickly and accurately. As a result, the production efficiency of the production line is greatly improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a system configuration of an embodiment of a production line work instruction device and a transfer control device according to the present invention.

FIG. 2 is a diagram conceptually showing a line configuration of a production line of the embodiment shown in FIG.

FIG. 3 is a flowchart showing a processing procedure performed in each system shown in FIG. 1;

FIG. 4 is a diagram showing an example of a component configuration of a product produced on the production line shown in FIG. 2;

FIG. 5 is a diagram used to explain process design data input to the upper system shown in FIG. 1;

FIG. 6 is a diagram used to explain production plan data input to the upper system shown in FIG. 1;

FIG. 7 is a diagram used to explain execution plan data created by the host system shown in FIG. 1, and is used for the main line management system shown in FIG. 1; FIG. 6 is a diagram illustrating the contents of the example.

FIG. 8 is a diagram used to explain execution plan data created by the upper system shown in FIG. 1, and the contents of sub-line execution plan data used in the sub-line management system of FIG. 1; FIG.

FIG. 9 is a diagram used to explain execution plan data created by the upper system shown in FIG. 1, and is an execution plan data for a kit site used in the kit site management system of FIG. 1;
FIG. 6 is a diagram illustrating the contents of the data.

FIG. 10 is a diagram used to explain a conventional technique, and is a diagram illustrating a process chart in a machining line.

[Explanation of symbols]

 0 Automatic warehouse 1 Kit place 2 Sub line 3 Main line 4 Host system 5 Main line management system 6 Sub line management system 7 Kit place management system 8 Warehouse management system 9 Transport control device 41 Transmitter 51 Transmitter 61 Transmitter 71 Transmitter 52 Display Unit 62 display unit 72 display unit 82 display unit

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-111880 (JP, A) JP-A-63-89234 (JP, A) JP-A-2-160459 (JP, A) JP-A-Heisei 4- 25357 (JP, A) JP-A-61-221958 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B23Q 41/00 G05B 19/418

Claims (4)

(57) [Claims] In a production line for producing a finished product by performing a process of selectively combining various parts placed in a warehouse in a plurality of steps, a part number indicating a type of the parts is set, and A part number is set for each type of semi-finished product to be processed at each stage of the process, and a supply source identification code indicating a warehouse and a process for supplying these parts and semi-finished products is set in accordance with the part number of the part and the semi-finished product, A destination identification code indicating a process in which the part and the semi-finished product are to be combined and processed next is set in accordance with the part number of the component and the semi-finished product, and a warehouse and a process indicated by the source identification code based on the set contents are set. The part number corresponding to the supply source identification code is transmitted to and the process corresponding to the supply destination identification code is performed for the process indicated by the supply destination identification code. A higher-level system having transmission means for transmitting a number and a supply source identification code corresponding to the product number; and display means provided for each of the warehouse and each of a plurality of processes, and for displaying contents transmitted from the higher-level system. A work instruction device for a production line for instructing a machining operation based on the display contents of the display means and instructing a conveying operation of the parts and semi-finished products. 2. In a production line for producing a finished product by performing a process of selectively combining various parts placed in a warehouse in a plurality of steps, a part number indicating a type of the parts is set, and A part number is set for each type of semi-finished product to be processed at each stage of the process, and a supply source identification code indicating a warehouse and a process for supplying these parts and semi-finished products is set in accordance with the part number of the part and the semi-finished product, A destination identification code indicating a process in which the part and the semi-finished product are to be combined and processed next is set in accordance with the part number of the component and the semi-finished product, and a warehouse and a process indicated by the source identification code based on the set contents are set. And transmitting the part number corresponding to the supply source identification code and the supply destination identification code corresponding to the part number to the process indicated by the supply destination identification code. A high-level system having transmission means for transmitting a product number corresponding to the supply destination identification code, and display means provided for each of the warehouse and each of a plurality of processes and displaying the content transmitted from the high-level system. A work instruction device for a production line for instructing a machining operation based on the display contents of the display means and instructing a conveying operation of the parts and semi-finished products. 3. In a production line for producing a finished product by performing a process of sequentially and selectively combining various parts placed in a warehouse in a plurality of steps, a part number indicating a type of the parts is set, and A part number is set for each type of semi-finished product to be processed in each stage of the plurality of processes, and a supply source identification code indicating a warehouse and a process for supplying these parts and semi-finished products is set in accordance with the part numbers of the parts and semi-finished products. In accordance with the part number of the part and the semi-finished product, a destination identification code indicating a process in which the part and the semi-finished product are to be combined and processed next is set, and based on the set contents, the warehouse indicated by the supply source identification code and The part number corresponding to the source identification code is transmitted to the process, and the destination identification code is supported for the process indicated by the destination identification code. A higher-level system having a transmitting means for transmitting a product number and a supplier identification code corresponding to the product number; a transporting means for transporting the parts and semi-finished products between the warehouse and a plurality of processes in response to a transport command input; A request command for a part and a semi-finished product of a corresponding part number is provided for the warehouse and the process indicated by the supply source identification code based on the contents transmitted from the upper system and provided for each warehouse and a plurality of processes. And a means for outputting, to the transfer means, a transfer command for transferring a part and a semi-finished product of the requested product number to a process that has output the request command when the is input. 4. In a production line for producing a finished product by performing a process of sequentially and selectively combining various parts placed in a warehouse in a plurality of steps, a part number indicating a type of the parts is set. A part number is set for each type of semi-finished product to be processed in each stage of the plurality of processes, and a supply source identification code indicating a warehouse and a process for supplying these parts and semi-finished products is set in accordance with the part numbers of the parts and semi-finished products. In accordance with the part number of the part and the semi-finished product, a destination identification code indicating a process in which the part and the semi-finished product are to be combined and processed next is set, and based on the set contents, the warehouse indicated by the supply source identification code and A part number corresponding to the source identification code and a destination identification code corresponding to the part number are transmitted to the process, and are indicated by the destination identification code. A transmission system for transmitting the part and the semi-finished product between the warehouse and a plurality of processes in response to a transportation command input; Provided for each of the warehouse and a plurality of processes, and outputs a supply command for parts and semi-finished products of the corresponding part number for the process indicated by the supply destination identification code based on the content transmitted from the upper system, and the supply command is A production line transport control device comprising: a step of outputting a supply command for a part and a semi-finished product of a part number to be supplied when input; or a means for outputting a transport command for transporting from a warehouse to the transport means. .