JPH04223846A - Work instruction device and transfer control unit for production line - Google Patents

Abstract

PURPOSE:To efficiently operate a production line producing a completed article, by executing the work selectively combining various kinds of parts in plural processes. CONSTITUTION:A partially fabricated item produced at the stage of each process 1, 2 is specified by an item number and also the part becoming a raw material, the supplier of the partially fabricated item, the supplier of a formed semi- fabricated item or part are specified. And these specified contents are allocated to each control systems 5, 6, 7 and 8 from a host system 4 as an execution program data and a stack program data. In each system the content of the transmitted data is displayed a at display parts 52, 62, 72 and 82, the work instruction is executed based on this, and also the request command is output to the supplying systems 6, 7, 8 based on the display content, or a feeding command is output to the supplying systems 5, 6, 7. The system having received the request command outputs a transfer command to a transfer control unit 9 so that the raw material is transferred from the system that a feeding command is output.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to a production line that produces finished products by selectively combining various parts in multiple processes, and particularly relates to processing work in each process and transportation between warehouses and each process. Concerning the realization of a production system that allows work to be carried out efficiently

[0002].

[Prior Art] In a machining line that starts from one type of material and sequentially performs machining such as cutting on that material to complete a product, a process chart as shown in Fig. 10 is created, and based on this The machining line will be in operation. In other words, in the figure, the product with part number “1” is machined A in process “1”.
, perform machining B in process “2”, and finally process “
The machining procedures for product numbers "2", "3", "4", etc. are shown below, such that the product is completed by cleaning in step 3.In this way, in the case of a machining line, multiple parts are Since there is no process of combining to obtain a semi-finished product, it is sufficient to specify the part number of the starting point for the semi-finished product in each process.For example, in process "2" to create a product with part number "1", “The semi-finished product with product number “1” from the previous process “1” is transported to the own process “2”.”
, and “Create a semi-finished product with product number “1” by performing machining B on the semi-finished product with product number “1” that has been transported.”
Then, a series of transport and processing operations are performed by indicating the product number of the single part "1" and giving work instructions such as "Transport the semi-finished product with the product number "1" to the next process "3".

[0003].

[Problem to be Solved by the Invention] By the way, in a production line for automobiles that produces a finished product by selectively combining various parts in multiple processes, it is necessary to A new semi-finished product is obtained by combining multiple semi-finished products or parts obtained in the process (by performing processing such as assembly and welding). Therefore, if a part number is assigned only to the smallest unit part as in the above-mentioned machining line, a semi-finished product must be identified by multiple part numbers of the parts that make up the semi-finished product. For this reason, the creation process of the above-mentioned process chart becomes complicated, and
The processing efficiency of conveyance and processing operations was to be impaired.

The present invention has been made in view of these circumstances, and provides a work instruction device for efficiently operating a production line that produces finished products by selectively combining various parts in multiple processes. and a conveyance control device.

[0005]

[Means for solving the problem] Therefore, the first aspect of the present invention
In the invention, in a production line that produces a finished product by selectively combining various parts placed in a warehouse in a plurality of processes, a product number indicating the type of the part is set, and a product number indicating the type of the part is set, and the number of parts in the plurality of processes is set. a first setting means for setting a part number for each type of semi-finished product to be processed at each stage; and a supplier identification code indicating a warehouse and a process for supplying the parts and semi-finished products in correspondence with the part numbers of the parts and semi-finished products. a third setting means for setting a supply destination identification code indicating a process in which the parts and semi-finished products are to be combined and processed next in correspondence with the product numbers of the parts and semi-finished products; 1st, 2nd and 3rd
Based on the settings of the setting means, the product number corresponding to the supplier identification code is transmitted to the warehouse or process indicated by the supplier identification code, and the product number corresponding to the supplier identification code is transmitted to the process indicated by the supplier identification code. an upper system having a transmitting means for transmitting a product number corresponding to the code and a supplier identification code corresponding to the product number; and a higher-level system provided for each of the warehouse and each of the plurality of processes, and displaying the contents transmitted from the higher-level system. A display means is provided, and the processing operation is instructed based on the display contents of the display means, and the transportation operation of the parts and semi-finished products is instructed. Furthermore, based on the settings of the first, second, and third setting means, a product number corresponding to the supplier identification code and a supplier identification code corresponding to the product number are added to the warehouse or process indicated by the supplier identification code. and transmitting means for transmitting the product number corresponding to the supplier identification code to the process indicated by the supplier identification code; The apparatus is equipped with a display means for displaying the contents transmitted from the host system, and based on the display contents of the display means, the processing operation is instructed and the transport operation of the parts and semi-finished products is instructed.

[0006] Also, in the second invention of the present invention, the above-mentioned first
The host system includes the same first, second and third setting means and transmitting means as in the invention. The system further includes a transport 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 includes a transport means for transporting the parts and semi-finished products between the warehouse and the plurality of processes in accordance with the content transmitted from the host system. A request command for parts and semi-finished products with the corresponding part number is output to the warehouse or process indicated by the identification code, and when a request command is input, parts and semi-finished products with the requested part number are sent to the process that outputs the request command. The apparatus includes means for outputting a transport command for transport to the transport means. In addition, for each warehouse and multiple processes, it outputs supply instructions for parts and semi-finished products with corresponding product numbers for the process indicated by the supplier identification code based on the content sent from the host system, and inputs supply instructions. The apparatus further includes means for outputting a transport command to the transport means for transporting parts and semi-finished products of the part number to be supplied when the supply command is outputted from the process or warehouse that outputs the supply command.

[0007]

[Operation] That is, according to the configuration of the first invention, in the upper system, not only the parts that are the smallest units of the finished product but also the semi-finished products obtained at each process stage are regarded as a single part, and new A product number is assigned to the product. At the same time, a code is given to each product number to identify its supply source (a warehouse if it is a part, or a process to produce the semi-finished product if it is a semi-finished product). Furthermore, a code is assigned to each product number to identify its supply destination (the process to be processed next). Then, the host system transmits to each process and warehouse the product numbers and supplier identification codes of the parts or semi-finished products required for assembly in the own process, as well as the part numbers of the semi-finished products or parts to be assembled in the own process. By displaying the transmitted content on the display means in each process, it becomes possible to easily transport the parts or semi-finished products of the part number required for assembly in the own process from the process or warehouse indicated by the supplier identification code. Furthermore, since the product numbers of the parts and semi-finished products required for assembly and the product numbers of the semi-finished products to be assembled are displayed, it becomes possible to efficiently plan the processing. In addition, the host system sends to each process and warehouse the part numbers of parts or semi-finished products required for assembly in the own process, as well as the part numbers of semi-finished products or parts assembled in the own process and their supplier identification codes. . By displaying the transmitted content on the display means at each process and warehouse, it becomes possible to easily transport the parts or semi-finished products assembled in the own process to the process indicated by the supplier identification code. Further, since the part numbers of parts and semi-finished products required for assembly and the part numbers of semi-finished products to be assembled are displayed, it becomes possible to efficiently set up processing operations, etc.

Further, according to the configuration of the second invention, since the supplier of the parts or semi-finished products necessary for assembly in each process can be identified from the transmission content using the supplier identification code, the parts or semi-finished products with the relevant part number can be automatically purchased. A transport request command can be issued to the warehouse or process indicated by the supplier identification code to transport the product to the process. Then, the process or warehouse that has received the transport request command can issue a transport command to the transport means to supply the semi-finished product or parts produced in the own process to the requested process. Furthermore, in each process and warehouse, the destination of the parts or semi-finished products assembled in that process can be determined from the transmission content using the destination identification code, so a supply command can be issued to the process indicated by the destination identification code. Then, the process that has received the supply command can issue a transport command to the transport means to supply the semi-finished product or parts from the supply source process or warehouse to the own process. As a result, parts or semi-finished products necessary for each process can be easily and efficiently supplied.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a work instruction device and a conveyance control device for a production line according to the present invention will be described with reference to the drawings.

[0010] In the embodiment, the production line is assumed to be an automobile production line. Figure 2 conceptually shows the line configuration of a production line that produces automobiles.
As shown in the figure, there is an automatic warehouse 0 in which various parts, which are the smallest units for producing automobiles, are placed, and parts are automatically loaded and unloaded by a transport control device 9, which will be described later.
Then, predetermined parts are transported from automated warehouse 0, and these predetermined parts are palletized all at once at kit yard 1, and a collection of parts transported from automated warehouse 0 and parts palletized and transported at kit yard 1 ( Sub-line 2 creates semi-finished products such as engines by tightening and assembling components (hereinafter referred to as semi-finished products for convenience), and sub-line 2 produces semi-finished products such as engines, which are transported from automated warehouse 0 and palletized at kit yard 1.
The main line 3 further assembles and processes the assembled semi-finished products to produce finished automobiles. In addition, in the embodiment, for convenience of explanation, the equal line configuration in which there is only one subline 2 is simplified. The automated warehouse 0, the kit shop 1, the sub line 2, and the main line 3 are connected by a conveyance path of an automatic guided vehicle that carries parts and semi-finished products thereon in accordance with a conveyance command. The movement of this automatic guided vehicle is controlled by a transport control device 9, which will be described later with reference to FIG. Kit field 1 is automatic warehouse 0
There are transport vehicle stations 110, 120, 130, and 140 depending on the type of parts to be transported from the factory, and the subline 2 is for semi-finished products to be transported from the kit shop 1 and the types of parts to be transported from the automatic warehouse 0. Depending on the vehicle stay
The main line 3 has stations 310 and 220 for transport vehicles depending on the type of semi-finished products transported from the sub-line 2, semi-finished products transported from the kit shop 1, and parts transported from the automated warehouse 0. ,320,
It has 330.

FIG. 1 shows the system configuration of the production line shown in FIG. A high-level system 4 that creates execution plan data for each process necessary for each process of the sub-line 2 and main line 3 and centrally controls the automated warehouse 0, kit shop 1, sub-line 2, and main line 3, and the high-level system 4 A main line management system 5 that manages the main line 3 based on the content of the execution plan data created in the upper system 4, and a subline management system that manages the subline 2 based on the content of the execution plan data created in the upper system 4. 6, a kit shop management system 7 that manages the kit shop 1 based on the contents of the execution plan data created by the host system 4, and an automated warehouse 0 based on the warehousing plan data created by the host system 4.
The automated warehouse management system 8 manages the types, quantities, and placement positions of parts within the warehouse, the subline management system 6, the kit shop management system 7, and the automatic warehouse management system 8. It is comprised of a transport control device 9 that controls the running of cars and controls the entry and exit of the automated warehouse 0 in accordance with the entry and exit commands output from the automated warehouse management system 8. The systems 4 to 8 are mainly composed of computers in terms of hardware, and these systems 4 to 8 are connected to a wired or wireless network as shown by solid arrows. That is,
The host system 4 has a transmitter 41, which transmits execution plan data to each of the systems 5-7 and warehousing plan data to the system 8. The systems 5, 6, and 7 also have transmitters 51, 61, and 71, respectively, and transmit request commands, which will be described later, to the lower systems, respectively. System 5, 6, 7
, 8 have display units 52, 62, 72, and 82, respectively, and display the contents of the input execution plan data and warehousing plan data on the screen. These display sections 52, 62,
72 and 82 are main line 3, sub line 2, kit store 1, and automatic warehouse 0 in a manner that is easily visible to the operator.
shall be attached to.

The processing carried out in each of the systems 4 to 8 will be explained below with reference to the flowchart of FIG.

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

- Creation of parts composition list Now, assume that many types of automobiles are to be produced, such as product number XXX, product number YYY, product number ZZZ, etc.

First, a parts bill showing the flow of the parts and semi-finished products that make up product numbers XXX, YYY, ZZZ, etc. is created for each product type based on data regarding the parts that make up these products to be produced. . Product number X on behalf of
The flow of parts and semi-finished products that make up XX is shown in a parts composition table as shown in FIG. 4 (FIG. 2 shows the supply route in the line). The number in parentheses indicates the identification number of the station to which the parts or semi-finished products are supplied by the transport vehicle. In other words, automatic warehouse 0 has product numbers 01001 to 01007.
Based on these parts, the product with part number XXX is finally lined out on main line 3. Here, as is clear from the figure, at kit store 1, the product number is 0.
A semi-finished product is obtained by combining parts 1001 and 01002, but a new product number 11001 is set here for this semi-finished product. Similarly, at kit shop 1, the product numbers 01004 and 0 are
Part number 11002 is given to semi-finished products made by combining parts 1005 and 01006, and part number 11001 is given to subline 2.
Part number 12001 is set for each semi-finished product made by combining the semi-finished product of and part number 01003. Here, the upper two digits of the product numbers of parts and semi-finished products are coded as the locations where these parts and semi-finished products are obtained and placed as shown below.

01=Automated warehouse 0 11=Kit area 1 12=Sub line 2
(1) Hereinafter, this number will be referred to as a supplier identification number. From this, for example, information can be obtained that the semi-finished product with product number 12001 is processed and placed on subline 2 indicated by 12.

Furthermore, for each product number of a part or semi-finished product, a three-digit supplier identification number for identifying the next supplier, that is, the next process to be processed and its station, is shown in parentheses in FIG. Set as shown. Here, the first digit of the three-digit supplier identification number means the process of the supplier in the following correspondence relationship.

1=Kit place 1 2=Sub line 2 3=Main line 3...(
2) For example, a semi-finished product with the product number 12001 corresponds to a supplier identification number 310, and this product number 12001
It is possible to obtain information that the semi-finished product is then transported to the station 310 specified by 10 on the main line 3 shown by 3. A parts configuration table similar to that shown in FIG. 4 is created for other vehicle models YYY, ZZZ, . . . .

・Creation of process design data Once the parts bill classified by product type has been created as described above, the next step is to create processes divided into each system 5 to 7 based on the bill of materials. Design data 5b, 6b, 7b
A process is performed to create the image as shown in FIG. In other words, regarding the process design data 5b for main line 3,
From the parts composition table, parts whose first digit of the supplier identification number is 3 are selected as parts and semi-finished products necessary for assembly. For example, for product XXX, the product number is 12001.
and product number 11002 and product number 01007 are selected. From this, as shown in the figure, the semi-finished product with product number 12001 is supplied to station 310 of main line 3, and the semi-finished product with product number 11
The semi-finished product of 002 is sent to station 320 on main line 3.
The parts with part number 01007 are supplied to station 330 of main line 3, and these parts with part number 12001 are supplied to station 330 of main line 3.
, 11002 and the part with part number 01007 are converted into data. Here, the semi-finished product with product number 12001 that constitutes product XXX is regarded as a "part". Products YYY, ZZZ, . . . are converted into data in the same manner, and process design data 5b for the main line 3 is created. Similarly, process design data 6b for subline 2 is created. In this case, first, products with product numbers whose first digit of the supplier identification number is 2 are selected from the parts bill as parts and semi-finished products necessary for assembly. Next, the product with the supplier identification number 12 is selected from the parts bill as a semi-finished product to be assembled. As a result, for example, product number 1100 for product XXX
1, 01003 was selected as a necessary part or semi-finished product,
Product number 12001 is selected as a semi-finished product to be assembled. Products YYY, ZZZ, . . . are converted into data in the same manner, and process design data 6b for sub-line 2 is created. Hereafter, in the same way, as shown in the same figure, the kit place 1
Process design data 7b is created.

[0020] As described above, the assembly process in one process (for example, subline 2) is performed using the product numbers and numbers of multiple types of parts used in assembly and semi-finished products considered as "components".
It is expressed by the part number of the type of semi-finished product (including products) to be assembled. Also, one process (for example, kit shop 1)
) semi-finished products (for example, product number 11001) are subjected to the next process (
For example, if it is considered a "part" of subline 2), product number 11
Since it is specified by 001, the connection between the preceding and succeeding processes can be simply expressed as a solid arrow. In other words, multiple arrows are not connected toward product number 11001 of subline 2. Furthermore, between different types of products,
For example, when a common part or semi-finished product is used between XXX and YYY, it can be described using the same part number (for example, 11001) as shown by the thick arrow.

Although omitted in the parts composition table, in the process design data shown in FIG. 5, the number required for assembly is set for each part number. Further, lead time data indicating the time required for the work, that is, the lead time L/T (minutes), is set for each work unit for producing one type of semi-finished product. For example, in the process design data 6b for subline 2 for creating product XXX, there is one "part" (semi-finished product considered to be a semi-finished product) 11001 and two parts 01003, and the lead time for semi-finished product 12001 is Information is added that it should be assembled and processed in 15 minutes. Once the process design data 5b, 6b, and 7b as described above are created, these data are input into 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 host system 4 also contains production plan data as shown in FIG.
data 4a is input. The production plan data 4a includes many types of products XXX, YYY, and ZZZ to be produced as shown in FIG.
Product names of..., assembly order indicating the order in which these products are produced (
(shown as 1, 2, 3... in Figure 6), number (1 in the example)
This is data that describes the scheduled production end time of each product. The input process design data 5b, 6b, 7b and production plan data
Based on the data 4a, as shown in FIGS. 7, 8, and 9, execution plan data 5a, 6a,
7a is created. That is, as shown in FIG. 7, execution plan data for the main line is created based on the product name, assembly order, and scheduled production end time data shown in the production plan data 4a, and the process design data 5b. - data 5a is created. At this time, although not shown in the figure, the scheduled start time and scheduled end time are also set in the execution plan data 5a for each work unit (indicated by assembly order 1, 2, 3, etc. in the figure). Become. In addition, as shown in FIG. 8, an execution plan for the sub-line is created based on the product name, assembly order, and scheduled production end time data shown in the production plan data 4a, and the process design data 6b. - data 6a is created. At this time, process design data 6
Based on the lead time data shown in b, each work (assembly order 1,
2, 3, etc.) will be determined. A scheduled start time and a scheduled end time are also set for each work unit (not shown). In addition, as shown in FIG. 9, an execution plan for the kit shop is based on the product name, assembly order, and scheduled production end time data shown in the production plan data 4a, and the process design data 7b. Data 7a is created. At this time, the execution plan data for the main line, which is the subsequent process, is created based on the lead time data shown in the process design data 7b.
The order of each task (indicated by kit order 1, 2, 3, etc. in the figure) is determined in time for the scheduled start time of each task shown in data 5a and subline execution plan data 6a. . A scheduled start time and a scheduled end time are also set for each work unit (not shown). Also, although not shown, as an alternative to the execution plan data mentioned above for the warehouse management system 8, warehousing plan data is created based on the production plan data 4a and the process design data 5b, 6b, and 7b. Created. This warehousing plan data is data indicating the part numbers of parts to be prepared to assemble all the products shown in the production plan data 4a. For example, the parts required to produce product XXX are 01001 to 01007 (step 102). - Transmission process Once each of the execution plan data 5a to 7a and the warehousing plan data have been created as described above, the transmission unit 41 sends these execution plan data 5a, 6a, 7a and the warehousing plan data.
A process is performed to send the data to the main line management system 5, subline management system 6, kit store management system 7, and warehouse management system 8, respectively (step 10).
3).

- Work instruction Each of the systems 5-8 performs a process of displaying the contents of each plan data transmitted from the transmitting section 41 on the display sections 52-82 (step 104). Based on this display, the operator arranges necessary parts or semi-finished products for each process, and also makes preparations for producing semi-finished products and products XXX, that is, arranges tools and jigs to be used. If we take subline 2 as an example, the contents shown in Figure 8 will be displayed, so the first work shown in assembly order 1 will start with product number 1100.
Arrangements will be made to transport the semi-finished product of 1 from the kit site 2 indicated by 11, and the part number 01003 will be transported from the kit site 2 indicated by 11.
It can be seen that it is only necessary to arrange for transportation from automated warehouse 0, which is indicated by . Here, the manner in which the raw material parts and semi-finished products are transported is that the operator manually transports the raw material semi-finished products (11001) and parts (01003) from the previous process based on the display contents on the display unit 62. It is possible that Manually transporting raw material parts and the like in this manner is particularly effective when the parts are too large to be transported by an automatic guided vehicle. In addition, the product number of the material (11
001 and 01003) and the product number (12
001), tools and jigs are appropriately arranged. The above pre-processing is performed quickly and accurately, and the first assembly operation is performed. Thereafter, for assembly orders 2, 3, 4, etc., preprocessing and operations are similarly performed in sequence, quickly and accurately. Although the subline 2 has been described above, the mainline management system 5 and the kit store management system 7 similarly display the contents of the transmitted execution plan data on the display units 52 and 72, and perform preprocessing and processing based on this. Assembly work can be done quickly and accurately. Note that such preprocessing and assembly work may be performed automatically based on the transmitted content. Furthermore, the warehouse management system 8 also outputs a warehousing command to the transport control device 9 to store necessary parts based on the contents of the warehousing plan data displayed on the display section 82. As a result, the automated warehouse 0 is controlled as required by the transport control device 9, and necessary parts are stocked and placed at predetermined locations within the warehouse. Note that such warehousing work may be automatically performed based on the transmitted content (step 105).

- Transport control When transporting parts, etc. using an automatic guided vehicle, proceed as follows. That is, if we take assembly order 1 in subline 2 as an example, by looking at the display content on the display section 62 and using input means such as a keyboard in the subline management system 6,
Input the request command "Product number 11001, supply destination 210". This content is transmitted from the transmitter 61 to the supplier identification number 11.
The information is sent to the kit store management system 7 indicated by . At the same time, a request command such as "product number 01003, supply destination is 220" is input, and this content is transmitted from the transmitter 61 to the warehouse management system 8 indicated by the supplier identification number 01. Then, the kit shop management system 7 receives the above-mentioned request command, and in response, sends the semi-finished product with product number 11001 to the station 210 of subline 2 indicated by 210.
A transport command is output to the transport control device 9 for transport by an automatic guided vehicle toward the destination. As a result, the automatic guided vehicle is controlled to travel as required, and transports the semi-finished product with product number 11001 to station 210 of subline 2. Similarly, in the warehouse management system 8, in response to the request command input, the part with part number 01003 is dispatched from the automated warehouse 0, and a dispatch command and transport are issued to transport it onto the automatic guided vehicle toward the station 220 of the subline 2. The command is output to the transport control device 9. As a result, the same part is taken out from the automated warehouse 0 and transported to the same station by an automatic guided vehicle. Main line management system 5, kit field management system 7
However, a request command is similarly output to the previous system,
The front-stage system outputs a transport command to the transport control device 9 in response to the request command. As a result, the necessary material is quickly and accurately conveyed to the subsequent process.

By the way, if the execution plan data 6a is input to the subline management system 6, instead of transmitting the request command through the operator's input operation, the request command is automatically sent based on this. It is also possible to transmit the information.

Furthermore, although the explanation has been made on the premise that parts and the like are in stock in the system into which the request command is input, the subline management system 6, kit shop management system 7, and warehouse management system 8 into which the request command is input have outputs. It is conceivable to manage the number of parts in stock by counting the number of parts, etc. that are removed, and to set a flag indicating "in stock" or "out of stock." And even if a request command is input, it says "out of stock"
If the flag is set, it may be possible to send the "rejection" content back to the system that outputs the request command. It is also possible to output the transport command to the transport control device 9 and, when the transport is completed, to send back information indicating "transport completed" to the system that outputs the request command (step 105).

In the embodiment, the suppliers of parts and semi-finished products required for assembly are displayed for each system.
On the contrary, the destination of semi-finished products (or parts in an automated warehouse) that have been processed may be displayed for each system. For example, if we take the kit order 1 of the execution plan data 7a in FIG. It will be added. Therefore, once such execution plan data and warehousing plan data are transmitted to each system, the above-mentioned work instructions and transport control are performed in the following manner.

- Work instructions For example, when the assembly of a semi-finished product (11001) is completed at the kit shop 1, the display contents on the display section 62 are checked to recognize the supply destination (210) of this semi-finished product. Arrangements are then made to supply the semi-finished product to this supplier. The same applies to the main line 3, sub line 2, and automated warehouse 0.

- Transport control For example, when the assembly of a semi-finished product (11001) is completed in the kit shop 1, the display contents on the display section 62 are checked to recognize the supply destination (210) of this semi-finished product. Then, a supply command is output to this supply destination indicating that the semi-finished product is in a "supply ready state". In response to this command, when a process (sub-line) at the destination becomes necessary, a transport command is output to the transport control device 9 to transport the semi-finished product from the kit factory 1 that has output the command. Others, main line 3, sub line 2
, the same applies to automated warehouse 0.

Furthermore, the execution plan data 5a of the embodiment
-7 and the contents of the warehousing plan data are just examples, and in order to quickly and accurately perform a series of operations such as pre-processing, assembly work, and warehousing of parts, product names (parts, semi-finished products) are added to the above data. It is also possible to add information such as name), type of jig, etc.

[0031]The system of the embodiment is the main,
Each of the sub, kit, and automated warehouse management systems 5 to 8 operates using independent execution plan data and warehousing plan data, so the functions of each management system 5 to 8 are realized by separate hardware. can do. Therefore, it can be easily applied to various production lines with different types and numbers of processes. Additionally, it is possible to flexibly respond to changes in the configuration of the production line.

The present invention is of course not limited to automobile production lines, but can be broadly applied to production lines that selectively combine various parts in multiple processes, such as assembly processes and welding processes. It is possible.

[0033]

[Effects of the Invention] As explained above, according to the present invention, semi-finished products produced at each step of the process can be specified by product number, and in each process and warehouse, suppliers of raw materials and semi-finished products, and semi-finished products to be produced can be identified. The supply destination (parts delivery destination) is specified by code, and the identified data is distributed to each process and warehouse and sent to each process and warehouse as planning data. planned day
Since work instructions and transport control are performed based on data, a series of operations such as transport and processing can be performed quickly and accurately. As a result, the production efficiency of the production line is greatly improved.

[Brief explanation of the drawing]

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

FIG. 2 is a diagram conceptually showing the line configuration of the production line of the embodiment shown in FIG. 1;

FIG. 3 is a flowchart showing processing procedures 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 host system shown in FIG. 1;

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

[Fig. 7] Fig. 7 is a diagram used to explain execution plan data created in the upper system shown in Fig. 1, and shows main line execution plan data used in the main line management system shown in Fig. 1. It is a diagram illustrating the contents of.

8] FIG. 8 is a diagram used to explain execution plan data created in the upper system shown in FIG. 1, and shows the contents of the subline execution plan data used in the subline management system shown in FIG. FIG.

9] FIG. 9 is a diagram used to explain the execution plan data created in the host system shown in FIG.
FIG.

FIG. 10 is a diagram used to explain the prior art, and is a diagram illustrating a process chart in a machining line.

[Explanation of symbols]

0 Automatic warehouse 1 Kit store 2 Sub line 3 Main line 4 Upper system 5 Main line management system 6
Sub-line management system 7 Kit store management system 8 Warehouse management system 9 Transport control device 41 Transmitting section 51 Transmitting section 61 Transmitting section 71 Transmitting section 52 Display section 62 Display section 72 Display section 82 Display section

Claims (4)

[Claims] Claim 1: In a production line that produces finished products by selectively combining various parts placed in a warehouse in a plurality of processes, a product number indicating the type of the parts is set, and a part number indicating the type of the parts is set. a first setting means for setting a product number for each type of semi-finished product to be processed at each stage of the process; and a supplier indicating a warehouse and process for supplying the parts and semi-finished products in accordance with the product number of the parts and semi-finished products. a second setting means for setting an identification code;
a third setting means for setting a supply destination identification code indicating a process in which the parts and semi-finished products are to be combined and processed next in accordance with the product numbers of the parts and semi-finished products;
Based on the settings of the second and third setting means, the product number corresponding to the supplier identification code is transmitted to the warehouse or process indicated by the supplier identification code, and the product number corresponding to the supplier identification code is transmitted to the warehouse or process indicated by the supplier identification code. an upper system having a transmitting means for transmitting a product number corresponding to the supplier identification code and a supplier identification code corresponding to the product number; 1. A work instruction device for a production line, comprising a display means for displaying contents, and instructing a processing operation based on the display contents of the display means, as well as instructing a transport operation of the parts and semi-finished products. 2. In a production line that produces finished products by selectively combining various parts placed in a warehouse in a plurality of processes, a product number indicating the type of said parts is set, and said plurality of a first setting means for setting a product number for each type of semi-finished product to be processed at each stage of the process; and a supplier indicating a warehouse and process for supplying the parts and semi-finished products in accordance with the product number of the parts and semi-finished products. a second setting means for setting an identification code;
a third setting means for setting a supply destination identification code indicating a process in which the parts and semi-finished products are to be combined and processed next in accordance with the product numbers of the parts and semi-finished products;
Transmitting a product number corresponding to the supplier identification code and a supplier identification code corresponding to the item number to the warehouse or process indicated by the supplier identification code based on the settings of the second and third setting means; an upper system having a transmission means for transmitting a product number corresponding to the supplier identification code to the process indicated by the supplier identification code; 1. A work instruction device for a production line, comprising a display means for displaying contents, and instructing a processing operation based on the display contents of the display means, as well as instructing a transport operation of the parts and semi-finished products. 3. In a production line that produces finished products by sequentially and selectively combining various parts placed in a warehouse in a plurality of processes, a product number indicating the type of the part is set, and a part number indicating the type of the part is set. a first setting means for setting a product number for each type of semi-finished product to be processed at each stage of a plurality of processes; and a supply indicating a warehouse and a process for supplying the parts and semi-finished products in accordance with the product numbers of the parts and semi-finished products. a second setting means for setting a source identification code; and a third setting means for setting a supply destination identification code corresponding to the part number of the part and semi-finished product to indicate a process in which the part and semi-finished product are to be combined and processed next. Based on the settings of the first, second, and third setting means, the product number corresponding to the supplier identification code is transmitted to the warehouse or process indicated by the supplier identification code, and the supplier identification code is also sent to the warehouse or process indicated by the supplier identification code. a host system having a transmitting means for transmitting a product number corresponding to the supplier identification code and a supplier identification code corresponding to the product number to the process indicated by; A transport means for transporting the parts and semi-finished products between the warehouses and each of the plurality of processes, and a product number corresponding to the warehouse or process indicated by a supplier identification code based on the content transmitted from the host system. Means for outputting a request command for parts and semi-finished products, and outputting, when a request command is input, a transport command for transporting parts and semi-finished products of the requested part number to the process that outputs the request command to the transport means. A production line transport control device equipped with 4. In a production line that produces finished products by sequentially and selectively combining various parts placed in a warehouse in a plurality of processes, a product number indicating the type of the part is set, and a part number indicating the type of the part is set. a first setting means for setting a product number for each type of semi-finished product to be processed at each stage of a plurality of processes; and a supply indicating a warehouse and a process for supplying the parts and semi-finished products in accordance with the product numbers of the parts and semi-finished products. a second setting means for setting a source identification code; and a third setting means for setting a supply destination identification code corresponding to the part number of the part and semi-finished product to indicate a process in which the part and semi-finished product are to be combined and processed next. Based on the settings of the first, second, and third setting means, a product number corresponding to the supplier identification code and a supplier identification corresponding to the item number are assigned to the warehouse or process indicated by the supplier identification code. a host system that transmits a code and transmits a product number corresponding to the destination identification code to the process indicated by the destination identification code; a transport means for transporting the parts and semi-finished products between the warehouses and each of the plurality of processes, and parts with product numbers corresponding to the process indicated by the supplier identification code based on the content transmitted from the host system. and outputs a supply command for semi-finished products, and also sends a transport command to the transport means to transport the parts and semi-finished products of the product number to be supplied when the supply command is input from the process or warehouse that outputs the supply command. A conveyance control device for a production line, which is equipped with a means for outputting.