JP5489822B2 - Component cost estimation system and component cost estimation method - Google Patents

Description

  The present invention relates to a component cost estimation system capable of easily estimating the cost of a component.

  Conventionally, when designing a new part, the cost of the part is estimated by a process designer having specialized technology setting a cost standard for each machining process and designing the process for each part. However, engineers who can set cost standards for each machining process are limited to specialized production designers, and it is difficult to secure such engineers, so waiting time occurs, and it takes time to estimate the cost of new parts. There was a problem that it took. In order to solve such a problem, the following Patent Documents 1 and 2 show, to the designer, the cost for each part to be processed or the content of processing, and the cost of the part is calculated at the design stage Is disclosed. Specifically, the design support system or product cost estimation system holds cost information for each machining process, and links the cost information with the machining part or machining content of the part drawing designed by the designer. The cost of a part under design is displayed on a screen of a CAD (Computer Aided Design) system or the like. The cost for each processing step is based on past estimation results and processing costs presented by a processor.

JP 2002-032623 A JP 2003-036291 A

  However, according to the above-described conventional technology, the cost for each processing step is uniquely specified. However, the scale of equipment to be used varies depending on the size of the parts, and the cost may vary even with the same processing content. . Therefore, there is a problem that the displayed cost may not be suitable for the part under design.

  The present invention has been made in view of the above, and an object of the present invention is to obtain a component cost estimation system that can easily estimate the cost of a component.

  In order to solve the above-described problems and achieve the object, the present invention provides an electronic library means for storing drawing data associated with item codes of parts, and an item master storage for storing predetermined part information. And when the drawing data is registered in the electronic library means, as the predetermined part information, the item code of the part associated with the drawing data, the item name of the part, and the design of the part When the part information associated with the previous drawing code, which is the item code of the borrowed existing part, is registered in the item master storage unit and the part information is registered in the item master storage unit, Acquires the drawing data of the part indicated by the part information, displays the item code of the part and the drawing data, and responds as a response from multiple processing manufacturers. A cost estimation data acquisition unit for acquiring cost estimation data of the part including the cost, a cost estimation data storage unit for storing predetermined cost estimation data, and a plurality of costs obtained by the cost estimation data acquisition unit Based on the specified item code, cost estimation data collecting means for collecting estimated data and as the predetermined cost estimate data, associating each collected cost estimate data with the item code and registering it in the cost estimate data storage means The corresponding previous drawing code is acquired from the item master storage means, all the cost estimation data associated with the item coat and the previous drawing code is acquired from the cost estimate data storage means, and the acquired cost estimate data is Based on the specified item code Characterized in that and a cost estimate means for estimating the costs of the parts corresponding to.

  According to the present invention, there is an effect that even a general designer can easily estimate the cost of parts.

FIG. 1 is a diagram illustrating a configuration example of a component cost estimation system. FIG. 2 is a flowchart showing the cost estimation process. FIG. 3 is a diagram illustrating a configuration example of the item master DB. FIG. 4 is a diagram illustrating a configuration example of the cost estimation DB.

  Hereinafter, an embodiment of a parts cost estimation system according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment.
FIG. 1 is a diagram illustrating a configuration example of a component cost estimation system. The parts cost estimation system includes an electronic library system 1, an item master management unit 2, an online bid solicitation system 3, a cost estimation data management unit 4, and a cost estimation unit 5. The item master management unit 2 includes an automatic numbering unit 21 and an item master database (DB) 22. The cost estimate data management unit 4 includes a cost estimate data collection unit 41 and a cost estimate database (DB) 42.

  The electronic library system 1 includes a storage unit for registering a CAD (Computer Aided Design) file (drawing data) of a drawing designed by a designer. It is equivalent to existing equipment.

  The item master management unit 2 manages the part information of the designed parts with an item code. At this time, when a newly registered part is designed by borrowing data of an existing part, the automatic numbering unit 21 automatically assigns the item code of the borrowed part as a previous drawing code, and the previous drawing The code is registered in the item master DB 22 as part information associated with the item code and the item name.

  The online bid solicitation system 3 is a system for publishing (displaying) part information newly registered in the item master DB 22 to a processing maker using the Internet and receiving a bid. The processing manufacturers participating in the bidding estimate the cost and bid (register) in the online bidding recruitment system 3. The online bid recruiting system 3 accepts a bid result (cost estimate data) from a processing manufacturer. In addition, although bid solicitation through the Internet is used as an example, the present invention is not limited to this, and other systems may be used as long as cost estimation data can be acquired. For example, when it is possible to offer a bid with a processing manufacturer using a dedicated line, it is also possible to use such existing equipment.

  In the cost estimate data management unit 4, the cost estimate data collection unit 41 collects the results (cost estimate data) of bidding in the online bidding recruitment system 3 and registers the cost estimate data in the cost estimate DB 42 in association with the item code. To do.

  When the designer or the like inputs the item code of the cost estimation target part, the cost estimation unit 5 obtains the previous drawing code corresponding to the item code and the previous drawing code from the item master DB 22 of the item code management unit 2 The previous drawing code corresponding to the selected item code is acquired. Next, based on the acquired item code, the cost estimate DB 42 of the cost estimate data management unit 4 is searched, and cost estimate data of the corresponding item code is acquired. Based on the obtained cost estimation data, the cost of the part corresponding to the specified item code is estimated.

  Next, cost estimation processing in the component cost estimation system will be described in detail based on a flowchart. FIG. 2 is a flowchart showing the cost estimation process. First, in the part cost estimation system, the electronic library system 1 registers drawing data of a newly designed new part (step S1). Here, it is assumed that the new part is designed by borrowing a drawing of an existing part registered in the electronic library system 1 by the designer and quoting (correcting) the borrowed drawing. At the time of registration, the electronic library system 1 registers the part drawing data and the item code in association with each other.

  Next, the item master management unit 2 registers the part information of the new part in the item master DB 22 based on the registration information from the electronic library system 1 (step S2). Here, when a new part is designed by borrowing an existing part, the registration information of the new part includes information on the item code of the borrowed existing part. Therefore, in the item master management unit 2, the automatic numbering unit 21 automatically assigns the item code of the borrowed existing part as the previous drawing code, and associates the previous drawing code, the item code of the new part, and the product name. Information is registered in the item master DB 22 as part information of a new part.

  FIG. 3 is a diagram illustrating a configuration example of the item master DB. The item master DB 22 includes an item code, an item name, and a previous drawing code. For example, as part information, the part of the item code a indicates that the part name is an assembly A part and the previous drawing code is j. That is, the assembly A part of the item code a is a part designed by borrowing the existing part of the item code j. Conventionally, an item master exists, but an existing item master is composed of an item code and an item name. As indicated by the thick frame in FIG. 3, the feature of the present embodiment is that the portion of the previous drawing code is added.

  In the item master management unit 2, when the automatic numbering unit 21 registers the part information of the new part in the item master DB 22, the registered part information is notified to the net bid recruitment system 3.

  Next, in the online bidding recruitment system 3, based on the notification from the automatic numbering unit 21, the online bidding is performed on the Internet for the new part (step S3). Specifically, the online bid solicitation system 3 acquires drawing data of the new part, and discloses (displays) the processing order and the processing content in each processing step together with the item code for the new part. And as a response, the online bid recruiting system 3 obtains the processing cost calculated from the equipment used, the number of man-hours and the rate for each processing content, as a result of bidding (cost estimation data) from a plurality of processing manufacturers.

  In this embodiment, it is only necessary to automatically disclose (display) the part information to each processing maker, and then automatically obtain cost estimation data from each processing maker. It is not limited to online bidding and may be performed through a dedicated line.

  Next, in the cost estimate data management unit 4, the cost estimate data collection unit 41 collects cost estimate data from the online bid solicitation system 3, and registers the collected cost estimate data in the cost estimate DB 42 in association with the item code. (Step S4).

  FIG. 4 is a diagram illustrating a configuration example of the cost estimation DB. The cost estimation DB includes an item code, a contractor, a processing order, processing details, equipment, man-hours (Hr), a rate (/ Hr), and processing costs. For example, the estimated cost presented by Company A for the part of item code d is the breakdown of the equipment used by Company A, the man-hours (Hr) and rate (/ Hr), and the man-hours for each process content. Processing cost (2.40 yen, 5.40 yen, 5.40 yen) is shown, and this plus management costs (3.00 yen) is presented as the total cost (16.20 yen) ing.

  Next, when the designer borrows a part of the item code d registered in the electronic library system 1 and the item master DB 22 and designs a new part, the cost estimation unit 5 newly designs the part. The cost of the parts to be estimated is estimated (step S5). For example, when the designer specifies the item code d and the estimation condition for the cost estimation unit 5, the cost estimation unit 5 performs the calculation of the specified condition and estimates the cost.

  When receiving the designation of the item code d from the designer or the like, the cost estimation unit 5 first acquires the previous drawing code registered in association with the item code d from the item master DB 22 of the item master management unit 2. Here, the previous drawing code u of the part of the item code d is acquired (see FIG. 2). Further, when the previous drawing code is registered in association with the part of the item code u, the previous drawing code is also acquired. When the previous drawing code is registered, the parts of the item code are designed by borrowing the part drawing of the previous drawing code, and thus are considered to be similar to each other. The cost estimation unit 5 repeatedly obtains the previous drawing code in a range of estimation conditions designated by the designer. Thereby, the cost estimation part 5 can acquire the item code of the part considered to be similar to the part of the designated item code (here, the item code d) in a chain. The estimation conditions include, for example, the number of previous drawing codes to be acquired and the time when parts of the previous drawing code are registered (registered after a predetermined time), but are not limited thereto.

  Next, the cost estimate unit 5 searches the cost estimate DB 42 of the cost estimate data management unit 4 for the item code such as the item code d and the acquired previous drawing code u, and registers it as a search result in association with each item code. Get the estimated cost data. FIG. 4 shows cost estimation data for the item code d. Similar data is also acquired for the item code u and the like.

  Next, the cost estimation unit 5 calculates the cost of a part to be newly designed by performing an operation designated as an estimation condition for the acquired cost estimation data, and outputs the calculated result as an estimated cost. For example, when a new part is designed by borrowing a drawing, the processing content of the new part can be considered to be equivalent to the processing content described in the cost estimation data. Therefore, if the processing contents are the same, for example, the cost estimation unit 5 extracts the data with the lowest processing cost for each processing content from the obtained cost estimation data of each item code. And what added the cheapest processing cost in each processing content is output as a cost estimation result of a new part. As another method, the cost estimation unit 5 calculates an average value for each processing content from the cost estimation data of each acquired item code, and adds these average values to obtain a cost estimation result of a new part. Output as.

  When there is a difference in processing contents between a newly designed part and the cost estimation data acquired from the cost estimation DB 42, the designer uses the cost estimation unit 5 for cost estimation. Specify processing details. And the cost estimation part 5 extracts the item applicable to the designated process content from the cost estimation data acquired from cost estimation DB42, and calculates | requires the lowest price or an average value for every extracted item. The cost estimation unit 5 can output the cost estimation result even for a new part that is different from the conventional part by adding the values obtained for each processing content.

  In this way, when the designer newly designs a part, when the part to be borrowed is determined, the cost estimation unit 5 determines from the item master DB 22 of the item master management unit 2 based on the previous drawing code of the part to be borrowed. It is possible to obtain item codes of parts that are considered to be similar in chain. Then, the cost estimate unit 5 searches the cost estimate DB 42 of the cost estimate data management unit 4 based on the acquired item code, extracts the cost estimate data registered in association with the corresponding item code, By obtaining the low price and the average value, the obtained value can be obtained as the estimated cost of the new part. As a result, even a general designer who does not have specialized techniques such as process design can estimate costs at the design stage of new parts.

  Further, the processing costs for each processing content are all obtained from the processing manufacturer as the estimated costs of parts that are considered to be similar. Therefore, it can be used as a processing cost when equipment that is considered to be used in the production of new parts is used. Thereby, cost can be estimated with high accuracy.

  In addition, since the value (cost estimate data) bid from the processing manufacturer is actually used, it is possible to always estimate the cost based on the latest data by specifying only the most recent data. it can.

  Next, another method of using the cost estimation unit 5 will be described. For example, past cost estimate data registered in the cost estimate DB 42 can be used to determine the cost of a new part that has just been obtained through online bidding.

  A part with the item code d is newly designed, and the processing from registration to the electronic library system 1 (step S1) to registration of cost estimation data to the cost estimation data management unit 4 (step S4) has been completed. In this case, the designer inputs the item code d to the cost estimation unit 5. As described above, the cost estimation unit 5 acquires the item code of the parts that are considered to be chain-similar based on the previous drawing code from the item master DB 22 of the item master management unit 2, and further adds the item code to the acquired item code. Based on the cost estimate DB 42 of the cost estimate data management unit 4, the cost estimate data associated with the designated item code and the item code acquired as the previous drawing code is extracted.

  Here, the extracted cost estimation data includes cost estimation data already associated with the item code d. Therefore, the cost estimate unit 5 compares the cost estimate data associated with the item code d with the cost estimate data associated with the item code u designated by the previous drawing code, and designates it with the previous drawing code. If the estimated cost data such as the item code u is lower than the estimated cost data of the item code d, an operation for extracting the difference is designated. By examining the difference output as a result of the calculation, the designer can use it to reduce the cost of the part corresponding to the item code d, and can use it for determining the part cost.

  When used for determining the cost of a new part, it is possible to omit the process of specifying the item code in the step S5. That is, when the electronic library system 1 or the item master management unit 2 registers part information of a new part, the part information is notified to the cost estimation unit 5. After that, the cost estimation unit 5 automatically performs the process based on the item code of the newly registered part after a generally conceivable period from the registration of the new part to the acquisition of the cost estimation data from the processing manufacturer. Alternatively, the above calculation may be performed. Thereby, when the designer registers the part information of the new part, the designer can obtain information on the estimated cost of the part after a predetermined period.

  As described above, in the present embodiment, in the parts cost estimation system, when a designer designs a new part by borrowing a drawing of an existing part, the part information of the new part is registered in the item master DB 22. Then, the item number of the part borrowed by the automatic numbering unit 21 is registered in association with the item code of the new part with the previous drawing code. Then, when a designer newly designs a part, when a part to be borrowed is determined, in the part cost estimation system, the cost estimation unit 5 in which the item code of the part to be borrowed is designated is the item master of the item master management unit 2 The item code of a part that is considered to be chain-similar from the previous drawing code is acquired from the DB 22, and the cost estimate DB 42 of the cost estimate data management unit 4 is searched based on the acquired item code, and is associated with the item code. To extract the cost estimate data registered. Thereafter, the cost estimation unit 5 can obtain the calculated value as the estimated cost of the new part by performing a specified operation on the extracted cost estimation data. Thereby, even a general designer who does not have specialized techniques such as process design can easily estimate the cost at the design stage of a new part.

  As described above, the component cost estimation system according to the present invention is useful for design support of a component designer, and is particularly suitable for estimating the cost of a component.

1 Electronic Library System 2 Item Master Management Unit 21 Automatic Numbering Unit 22 Item Master Database (DB)
3 Internet bid recruitment system 4 Cost estimate data management unit 41 Cost estimate data collection unit 42 Cost estimate database (DB)
5 Cost estimation department

Claims (14)

Electronic library means for storing drawing data associated with item item codes;
Item master storage means for storing predetermined parts information;
When drawing data is registered in the electronic library means, the part code associated with the drawing data, the item name of the part, and the existing borrowed at the time of designing the part are used as the predetermined part information. Automatic numbering means for registering, in the item master storage means, part information associated with a previous drawing code that is an item code of a part;
When the part information is registered in the item master storage unit, the drawing data of the part indicated by the part information is acquired, the item code of the part and the drawing data are displayed, and a plurality of responses are displayed as responses. Cost estimate data acquisition means for acquiring cost estimate data of the part including the estimated cost for each processing content from the processing manufacturer;
Cost estimate data storage means for storing predetermined cost estimate data;
A cost for collecting a plurality of cost estimate data obtained by the cost estimate data acquisition means and registering the collected cost estimate data in the cost estimate data storage means in association with an item code as the predetermined cost estimate data Estimate data collection means;
The corresponding previous drawing code is acquired from the item master storage means based on the specified item code, and the cost estimation data storage means acquires all the cost estimation data associated with the item code and the previous drawing code. Cost estimating means for estimating the cost of a part corresponding to the specified item code based on the obtained cost estimation data;
A component cost estimation system comprising: The cost estimating means includes
The previous drawing code registered in association with the specified item code is acquired from the item master storage means, and further, the previous drawing code registered in association with the item code acquired as the previous drawing code is acquired. Repeatedly execute the process
Based on the specified item code and the acquired previous drawing code, the cost estimation data registered in the cost estimation data storage means is searched, and all the items associated with the specified item code and the previous drawing code are searched. Get cost estimate data,
A prescribed calculation is performed on the estimated cost for each processing content included in all acquired cost estimation data, and the calculation result is output as the estimated cost of the part corresponding to the specified item code.
The component cost estimation system according to claim 1. The cost estimating means obtains the lowest price of the estimated cost for each machining content as the prescribed calculation, and adds the lowest price obtained for each machining content,
The component cost estimation system according to claim 2, wherein: The cost estimating means obtains an average value of estimated costs for each processing content as the prescribed calculation, and adds the average value obtained for each processing content,
The component cost estimation system according to claim 2, wherein: The cost estimation means further compares the cost estimation data associated with the designated item code with the cost estimation data associated with the item code acquired as the previous drawing code for each processing content, and the designated If the cost estimate data associated with the item code acquired as the previous drawing code is lower than the cost estimate data associated with the item code, the difference is calculated for each processing content. To
The component cost estimation system according to claim 2, 3 or 4. The cost estimation means limits the number of previous drawing codes acquired from the item master storage means;
The component cost estimation system according to any one of claims 2 to 5, wherein: The cost estimating means selects a processing content to be used when estimating a cost based on designation from the outside.
The component cost estimation system according to any one of claims 2 to 6. A component cost estimation method in a component cost estimation system for estimating the cost of a component,
The parts cost estimation system is
Electronic library means for storing drawing data;
Item master storage means for storing predetermined parts information;
Cost estimate data storage means for storing predetermined cost estimate data;
If you have
A drawing data registration step of registering drawing data associated with the item code of the part in the electronic library means;
As the predetermined part information, the part information associated with the item code of the part associated with the drawing data, the item name of the part, and the previous drawing code which is the item code of the existing part borrowed when designing the part Automatic numbering step for registering in the item master storage means,
Acquires the drawing data of the part indicated by the part information, displays the item code and the drawing data of the part, and in response, the cost of the part including estimated costs for each processing content from a plurality of processing manufacturers A cost estimate data acquisition step for acquiring estimate data;
Collect a plurality of cost estimate data obtained by executing the cost estimate data acquisition step, and register the collected cost estimate data as the predetermined cost estimate data in the cost estimate data storage means in association with each item code A cost estimation data collection step,
The corresponding previous drawing code is acquired from the item master storage means based on the specified item code, and the cost estimation data storage means acquires all the cost estimation data associated with the item code and the previous drawing code. A cost estimation step for estimating a cost of a part corresponding to the specified item code based on the obtained cost estimation data;
A component cost estimation method comprising: In the cost estimation step,
The previous drawing code registered in association with the specified item code is acquired from the item master storage means, and further, the previous drawing code registered in association with the item code acquired as the previous drawing code is acquired. Repeatedly execute the process
Based on the specified item code and the acquired previous drawing code, the cost estimation data registered in the cost estimation data storage means is searched, and all the items associated with the specified item code and the previous drawing code are searched. Get cost estimate data,
A prescribed calculation is performed on the estimated cost for each processing content included in all acquired cost estimation data, and the calculation result is output as the estimated cost of the part corresponding to the specified item code.
The method for estimating a part cost according to claim 8. In the cost estimation step, as the prescribed calculation, obtain the lowest price of the estimated cost for each processing content, and add the lowest price obtained for each processing content,
The component cost estimation method according to claim 9. In the cost estimation step, as the prescribed calculation, an average value of estimated costs for each processing content is obtained, and an average value obtained for each processing content is added.
The component cost estimation method according to claim 9. In the cost estimation step, the cost estimation data associated with the designated item code and the cost estimation data associated with the item code acquired as the previous drawing code are compared for each processing content, and the designated If the cost estimate data associated with the item code acquired as the previous drawing code is lower than the cost estimate data associated with the item code, the difference is calculated for each processing content. To
The part cost estimation method according to claim 9, 10 or 11. In the cost estimation step, the number of previous drawing codes acquired from the item master storage means is limited.
The component cost estimation method according to any one of claims 9 to 12, wherein: In the cost estimation step, based on designation from the outside, the processing content used when estimating the cost is selected.
The component cost estimation method according to claim 9, wherein the component cost is estimated.

Images