JPH08329150A - Manufacturing process managing system - Google Patents

Abstract

PURPOSE: To simply execute an actual work result report in a manufacturing process by working units (cassette) and to easily execute progress management by product units and by charging time work units (lot). CONSTITUTION: This manufacturing process managing system includes a cassette control file 1 for managing each cassette, a product management file 2 for managing each product, a process progress file 3 for managing the progress state of each process in each lot number, a lot setting/registering means 4 for registering a product number and a lot number in the file 2 when charging a product to a line, a management file updating means 5 for updating the contents of the files 1, 2 when starting respective works arranged by work units on respective processes, a process progress managing means 6 for updating the contents of the file 3 while referring to both the files 2, 1 at the start and end time of each work unit in each process, and a management information retrieving means 7 for retrieving and outputting information from respective files 1 to 3 based upon a request.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manufacturing process management system, and in particular, the number of products contained in one work unit is not the same, but varies depending on the process. The present invention relates to a manufacturing process management system in a manufacturing line in which the combination of products included in one work unit changes depending on the process by repeating division and integration as the process progresses.

[0002]

2. Description of the Related Art In recent years, the number of processes involved in the manufacture of highly technical products is very large, and a variety of manufacturing facilities are used. For this reason, the number of products of one work unit (in other words, the size of the equipment manufacturing lot) that are collectively processed under the same condition often varies depending on the process. In such a case, the lot (product group of one work unit) set in the first process of the manufacturing line repeats lot division and lot integration as the process progresses, and finally individual products are very diverse lots. Will have a combination history of.

Conventionally, when lots are divided or integrated in an intermediate process as described above, a new lot number is reassigned to a work unit of a subsequent process whose configuration has changed. Japanese Patent Laid-Open No. 1-272659 discloses that a lot number revision history is stored as a file.
A method has been proposed in which the process of dividing and integrating any lot can be traced and managed.

On the other hand, in a manufacturing line in which various parts and circuit elements having different sizes and mounting methods are incorporated into a single board or chassis in a number of steps, such as in the assembly work of electronic equipment, first, It is possible to manage each product through the entire process with one assigned product number, which is often desirable. In addition, even in the case of lot management as a product group, it is often convenient to manage the product composition of the lot when it is first introduced into the manufacturing line in a management unit that does not change throughout the entire process.

By the way, in a modernized production line, a product is often automatically transferred between processes by a transfer robot or the like, but at this time, one cassette (product transfer container) is provided for each work unit of the next process. It is generally stored and transported. In order to manage the work of each process of the manufacturing line, it is essential to manage each work unit, and as a work performance report used for this purpose, the cassette number and bar code of the product number can be easily read together. The collection and reporting of data focused on is common. In such a manufacturing line, lots for managing product groups are matched with cassettes for work management, and lot numbers and cassette numbers are in one-to-one correspondence. A lot number for product management is set for a product group stored in a cassette (a work unit in the first process). After that, if the product composition of the work unit changes during manufacturing and the cassettes of the previous process and the cassettes of the subsequent process do not correspond on a one-to-one basis, the lot number is renumbered to manage the product by the lot number. Is going.

[0006]

In the above-described conventional lot management method, the management unit for work management and the management unit for product management are the same, and the lot number is renumbered on the way. Therefore, when performing product management by paying attention to the lot number at the time of input, it is necessary to search the lot number at the time of input by referring to the history information from the current lot number.
In addition, it is difficult to accurately grasp the lot at the time of introduction of each product constituting the current lot by only the history information of lot division / integration as described in Japanese Patent Laid-Open No. 1-272659. There is a drawback that consistent product trace by lot is not possible.

FIG. 10 shows an example of division and integration of lots according to the conventional method.
Two lots of lot A and lot B each consisting of 10 products in 0 "are divided into three lots of lot C, lot D and lot E in the next step" 12040 ", and further lot F in the step" 12050 ". , Lot G is integrated. In this case, the division indicated by the arrow in the figure,
By referring to the integration history, lot F, lot G
It is understood that both are related to lot A and lot B at the time of input, but whether the product of lot F specifically includes the product of lot A and the product of lot B, or only the product of lot A is used. It is impossible to know what is done.

That is, as shown in FIG. 11, the product numbers "001" from lot A and lot B are input.
Of the 20 products of "020", when 4 products of lot D are integrated with 6 products of lot C and stored in the cassette of lot F, product numbers "007" to "01" from the smallest number
Select "0", or vice versa
Depending on whether “0” to “013” is selected, the constituent product of lot F is only the product of lot A (CASE 1)
And the case where both products of lot A and lot B are included (CASE 2).

An object of the present invention is to provide a manufacturing process management system which can easily combine the work management by cassette which is desirable in the structure of the production line and the management of each product and lot unit at the time of introduction which are desirable in product management. is there.

[0010]

A manufacturing process control system according to claim 1, wherein the number of products included in one work unit is not the same depending on the process, and division and integration are repeated as the process progresses, and the products in the work unit are combined. Is a manufacturing process management system for a manufacturing line in which the number of products is changing, and the storage confirmation that confirms the completion of product storage in the cassette for the cassette number of the cassette that stores multiple products belonging to the same work unit in the same process A cassette control file that stores the date and time, the number of stored products, and the process number and manages each cassette, and the cassette number and the storage confirmation of the cassette that stores the product for the product number that uniquely identifies the product. The product management file that stores the date and time and the lot number that manages the product group and manages each product, and the time before the product is put on the manufacturing line. The cassette control file and product management file are updated based on the lot setting registration means for setting and registering the product number and lot number in the product management file, and the work performance report made at the start and end of the work of each work unit of each process And a management information retrieving means for retrieving, editing and outputting necessary information from the cassette control file and the product management file.

A manufacturing process management system according to a second aspect is the manufacturing process management system according to the first aspect, in which a process progress file storing a progress status of each process for each lot number and a work start of each work unit of each process are started. And a process progress management means for updating the process progress file by referring to the product management file and the cassette control file based on the work result report at the end, and the management information searching means searches for information in the process progress file. The feature is that it also has a function to edit and output.

[0012]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

The manufacturing process management system of the present embodiment shown in FIG. 1 has a cassette control file 1 for managing each cassette, a product management file 2 for managing each product, and a progress status of each process for each lot number. Process progress file 3 for managing the process, lot setting registration means 4 for setting and registering the product number and the lot number in the product management file 2 when the product is input to the manufacturing line, and each process based on the work performance report. Cassette control file 1 at the start of work of a work unit
And the management file updating means 5 for updating the product management file 2, and the process progress file 3 by referring to the product management file 2 and the cassette control file 1 at the start and end of the work of each work unit of each process based on the work result report. It comprises a process progress management means 6 for updating, and a management information retrieval means 7 for retrieving, editing and outputting information from the cassette control file 1, the product management file 2 and the process progress file 3 upon request.

The cassette control file 1 is a file for accommodating a plurality of products to be processed belonging to the same work unit of the same process and managing a cassette used for product transfer between processes, and is shown in FIG. As shown in the figure, the cassette number column 11 in which the cassette numbers of all the cassettes used in the manufacturing line are registered, and the cassette number of each cassette confirms the storage completion of all the products stored in the cassette. It is composed of a storage date / time column 12 for storing the date / time, a quantity column 13 for storing the number of stored products, and an in-process step column 14 for storing the process number of the in-process process of the transport destination.

The product management file 2 is a file for managing the products to be processed, which are to be input to the manufacturing line, on a product-by-product basis. As shown in FIG. 3, the products to be processed to be input to the manufacturing line are uniquely identified. The product number column 21 for registering the product number, the lot number column 22 for storing the lot number for lot management as a product group, and the cassette number of the cassette in which the product is stored corresponding to each product number. And a storage date / time column 24 for storing the storage confirmation date / time when the completion of the storage of all products in the cassette is stored.

The process progress file 3 is a file for managing the progress of a lot set for product group management, and as shown in FIG. 4, a lot number column 31 for storing a lot number and a work-in-progress process. The process-in-process column 32 for storing the process number, the start-number column 33 for storing the number of work-initiated products in the process, and the completion-number column 34 for storing the number of work-finished products in the process. .

The lot setting registration means 4 registers the product number of each product in the product management file 2 when the product to be processed is input to the production line, and the lot for product group management is associated with each product number. Set the number and register.

The management file updating means 5 is based on the work performance report made at the start and end of the work of each work unit of each process, for the corresponding cassette number in the cassette control file 1, the storage confirmation date, the number of products, and the process. The number is updated, and the cassette number and the storage confirmation date and time are updated for the corresponding product number in the product management file 2.

The process progress management means 6 is based on the work result report made at the start and end of the work of each work unit of each process, based on the product management file 2 and the cassette control file 1.
With reference to, the number of work-initiated products and the number of work-finished products of each process number corresponding to the corresponding lot number in the process progress file 3 are updated.

The management information retrieving means 7 responds to a request from the user, namely the cassette control file 1 and the product management file 2
Also, necessary information is retrieved from the process progress file 3, edited, and output as management information.

Next, the operation of each means and the transition of the data of each file for each process will be described, taking as an example the case where the number of products in a work unit (cassette) changes as the process progresses, as shown in FIG. The change of the work unit for each process shown in FIG. 5 is the same as that in the case of FIG. 10, but the lot number for product group management is not changed midway.

First, 20 products with product numbers "001" to "020" are divided into two lots, lot A and lot B,
It is put into the process “12030”. At this time, by the lot setting registration means 4, as shown in FIG. 3, the product numbers "001" to "02" are entered in the product number column 21 of the product management file 2.
0 ”is registered, and lot number“ A ”is registered in the lot number column 22.
And “B” are set. Next, when the processing target products stored in the cassette “001” and the cassette “002” for each lot are transported to the location of each manufacturing apparatus in the process “12030”, based on the work performance report performed at the start of the work. 2, by the management file updating means 5, the cassette number "001" of the cassette control file 1 as shown in FIG.
And storage date / time column 12, quantity column 1 corresponding to “002”
3. The values in the work-in-process column 14 are sequentially updated and stored, and
Corresponding data are stored in the cassette number column 23 and the storage date / time column 24 of the product management file 2 as shown in FIG. The values stored in the storage date / time columns 12 and 24 are not the actual date and time when the product was stored in the cassette, but the date and time collectively confirmed at the time of the work performance report.

At the same time, referring to the product management file 2 and the cassette control file 1, the process progress management means 6 creates a process progress file 3 as shown in FIG.
In-process column 32 for lot A and lot B, respectively
And the data is stored in the start number column 33.

The management file update means 5 and the process progress management means 6 are able to control the cassette control file 1, the product management file 2 and the process progress file based on the work performance reports made at the end and start of each work unit as the process progresses. Three
To update. FIG. 6 shows the update status of the cassette control file 1, and data is stored in the record of the corresponding cassette number by the work performance report performed at the start of each work unit of each process. The middle part of FIG.
Cassettes "003" to "00" indicating a work unit of "040"
5 shows the state at the time when all the start reports of "5" are completed. In this case, the cassette "001" used in the previous step
The stored data of “002” and “002” may be deleted when the work of each work unit is completed, but may be left as they are until the cassette is reused and the stored data is updated. . If the processing time of one process is long and the cassette that has transported the product to that work unit before the processing of a certain work unit is reused for product transport between other processes, etc., Since it is necessary to hold the data representing the work unit of the cassette number until the processing of the work unit is completed, it is necessary to be able to store multiple sets of data for one cassette number. is there.

FIG. 7 shows the update status of the product management file 2. Both data in the cassette number column 23 and the storage date / time column 24 are sequentially updated by the work performance report made at the start of each work unit. The record of each product number in the product management file 2 is held until all products in the lot including the product number are completed. In addition, lot A and lot B
When the next lot is put into the same production line before the completion of the product No., the records of the product Nos. “021” to “040” are registered in addition to the records of the product Nos. “001” to “020”, Another lot number is set.

The process progress file 3 is updated by the process progress management means 6 as shown in FIG. 8 at the time of reporting the work results of the start and end of each work unit. That is, the number of starts and the number of completions for each lot and each process are calculated and updated according to the storage date and time of each cassette. The upper part of FIG. 8 shows the state when the start report of the cassette “003” is received, the middle part shows the state when the start report of the cassette “004” is received, and the lower part receives the start report of the cassette “006”. The state at the time is shown.

FIG. 9 is a flow chart showing the operation of the management information retrieval means 7. The search operation of the management information search means 7 will be described below with reference to FIG. When the user wants to know the progress of the process of the product belonging to a certain lot, the user first inputs the lot number (step S51). The management information retrieval means 7 uses the entered lot number to enter the product management file 2
To retrieve the corresponding record (step S5)
2). For each extracted record, the cassette control file 1 is searched using both the cassette number and the storage date and time as keys (step S53), and in the case of an output request for each product (step S54), the cassette number and the storage date and time are associated with the product number. , The work-in-process is output (step S5)
5, 56). As a result, the progress status of the process for each product can be known. In the case of the output request for each cassette (step S54), the information of the record retrieved from the cassette control file 1 is output as it is (step S57). This makes it possible to know in which work unit (cassette) of which process the product of the designated lot is being processed.

Although not shown in FIG. 9, when it is necessary to output the progress status of each process, the management information search means 7 searches the process progress file 3 using the entered lot number as a key. , Outputs the stored data of the corresponding lot number.

In the above embodiment, in addition to the cassette control file 1 for managing each cassette and the product management file 2 for managing each product, a process progress file for managing the progress of each process for each lot number. 3 and the process progress management means 6 for updating the process progress report 6 are provided, and by the work result report for each cassette, the process progress information for each product and each cassette, as well as the information for each process, can be easily output. I was supposed to. Of these, the process progress file 3 and the process progress management means 6 can be omitted, and the process result information for each cassette and each process progress information for each product and each cassette can be easily output, and substantially the same effect can be obtained. Obtainable.

Further, in the description of the above-mentioned embodiment, the setting of the lot for product management is the same as that of the cassette when the product to be processed is put into the first process of the manufacturing line.
The lot setting is not limited to the above, and can be set freely.

[0032]

As described above, the manufacturing process management system of the present invention is provided with a cassette control file for managing each cassette and a product management file for managing each product, and a cassette for work management. Even if the composition of the work unit (cassette) changes during the manufacturing process due to the separation of management and lot management for product management, the lot number for product management does not need to be renumbered. It is configured to consistently manage the progress of the product group by the unchanged lot number assigned at the time of input. As a result, it is possible to easily output the process progress information for each individual product and each cassette based on the lot number based on the work result report for each cassette, which is suitable for the work management of the manufacturing line. Management can be easily compatible.
Further, by providing the process progress file and the process progress management means, it becomes possible to more efficiently grasp the progress situation of each lot.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a configuration example of a cassette control file shown in FIG.

3 is an explanatory diagram of a configuration example of a product management file shown in FIG.

FIG. 4 is an explanatory diagram of a configuration example of a process progress file shown in FIG.

5 is an explanatory diagram showing an example of cassette division and integration in FIG. 1. FIG.

FIG. 6 is an explanatory diagram of an update status of a cassette control file.

FIG. 7 is an explanatory diagram of an update status of a product management file.

FIG. 8 is an explanatory diagram showing an update status of a process progress file.

9 is a flowchart showing the operation of the management information search means of FIG.

FIG. 10 is an explanatory diagram showing an example of lot division and integration by a conventional lot management method.

11 is an explanatory diagram showing a problem in the conventional method of FIG.

[Explanation of symbols]

 1 cassette control file 2 product management file 3 process progress file 4 lot setting registration means 5 management file updating means 6 process progress management means 7 management information retrieval means 11,23 cassette number column 12,24 storage date / time column 13 quantity column 14,32 In-process column 21 Product number column 22,31 Lot number column 33 Start number column 34 Completed number column

Claims (2)

[Claims] 1. A manufacturing process management system for a manufacturing line in which the number of products contained in one work unit is not the same depending on the process, and division and integration are repeated as the process progresses and the combination of products in the work unit changes. Then, the storage confirmation date and time, the number of stored products, and the process number for confirming the completion of product storage in the cassette are stored for each cassette number of a cassette that stores a plurality of products belonging to the same work unit in the same process. A cassette control file for managing the product, a product number that uniquely identifies the product, a cassette number of the cassette that stores the product, a storage confirmation date and time, and a lot number that manages the product group are stored. Set the product management file for unit management and the product number and lot number in the product management file when the product is put into the manufacturing line. Lot setting registration means to be registered, management file updating means for updating the cassette control file and the product management file based on the work performance report performed at the start and end of the work of each work unit of each process, the cassette control file and the product A manufacturing process management system comprising: a management information search unit that searches for, edits, and outputs necessary information from a management file. 2. A process progress file that stores the progress status of each process for each lot number, and refers to the product management file and cassette control file based on the work performance report at the start and end of the work of each work unit of each process. 2. The process progress management means for updating the process progress file according to claim 1, wherein the management information retrieving means also has a function of retrieving, editing and outputting information of the process progress file. Manufacturing process control system described.