JP2008158691A - BOM generation method and BOM generation program - Google Patents

Abstract

An object of the present invention is to reduce man-hours for BOM editing work at the time of design change or design of a successor model.
A means for extracting a difference between a design BOM before the change and a design BOM after the change, a means for collecting and managing an operation history when the production BOM is created by editing the design BOM before the change, and designated A means for executing an operation history of BOM, a means for extracting a cause of inconsistency by matching a difference between an operation that causes inconsistency when reflected in a design BOM after change and a design BOM, and a non-stationary state for avoiding inconsistency A process definition unit is provided, and a manufacturing BOM and an evaluation BOM can be generated even if a mismatch occurs due to a change in the design BOM when a saved operation history is reflected.
[Selection] Figure 1

Description

  The present invention relates to a bill of materials generation method and a bill of materials generation program, and more particularly to a bill of materials generation method and a bill of materials generation program for editing and managing a bill of materials (hereinafter referred to as BOM) created during product design. .

  In Patent Document 1, an integrated parts table is created by integrating a parts table created by a three-dimensional CAD system and a parts table created by a two-dimensional CAD system, and a production management system is created based on the integrated parts table. On the other hand, there is described a parts table data integration device for instructing arrangement.

  However, in Patent Document 1, a part table (hereinafter referred to as a manufacturing BOM) used in a manufacturing stage is changed from a part table created in a designing stage (hereinafter referred to as a design BOM) and a structure of the design BOM is partially changed for evaluation. Manages the operation history when a BOM (hereinafter referred to as evaluation BOM) is created, and reflects the operation history stored in the changed design BOM when the design BOM is changed due to a design change There is no description of reducing the work by creating a manufacturing BOM or an evaluation BOM.

JP 2001-331535 A

  In addition, when there is a change in the design BOM, it is not always considered that the operation when the production BOM is created and the change in the design BOM are caused to be inconsistent and cannot be reflected even if the operation history is reflected. There was a problem that a correct manufacturing BOM and evaluation BOM could not be created.

  The present invention provides a parts table generation system that can automatically and correctly generate a manufacturing BOM and an evaluation BOM when a design BOM is changed.

  The above-described problems include a step of editing the first parts table from the first design parts table, a step of recording the first editing history of the first parts table, and a second step from the first design parts table. Based on the step of editing the design bill of material, the step of recording the second edit history of the second design bill of material, the first edit history and the second edit history, from the second design bill of material This can be solved by a parts table generation method comprising a step of generating a second parts table.

  In addition, the computer edits the first parts table from the first design parts table, means for recording the first editing history of the first parts table, and the second from the first design parts table. From the second design parts table based on the means for editing the design parts table, the means for recording the second editing history of the second design parts table, the first editing history and the second editing history This can be solved by a parts table generation program for functioning as means for generating the second parts table.

  According to the present invention, it is possible to reduce man-hours and improve accuracy in creating a manufacturing BOM and an evaluation BOM from a design BOM in the case of a design change or a design of a successor model.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The same reference numerals are assigned to substantially the same parts, and the description will not be repeated. Here, FIG. 1 is a functional block configuration diagram of the parts table generation system. FIG. 2 is a hardware block configuration diagram of the parts table generation system. FIG. 3 is a diagram for explaining design BOM editing and production BOM generation. 4 and 5 are diagrams for explaining the data structure of the operation history. FIG. 6 is a diagram for explaining a data structure of a measure for avoiding inconsistency. FIG. 7 is a processing flow diagram for avoiding inconsistencies. FIG. 8 is a diagram for explaining a GUI (Graphical User Interface) of the diversion designation unit.

  In FIG. 1, a parts table generation system 100 is configured to connect a client 11 to a server 12. The client 11 includes a BOM input unit 111, a BOM editing unit 112, a diversion designation unit 113, and a BOM output unit 114. The server 12 includes a control unit 121, a BOM management unit 122, an operation history management unit 123, a difference extraction unit 124, an operation history reflection unit 125, a consistency confirmation unit 126, an inconsistency factor extraction unit 127, and an unsteady process storage unit. 128.

The BOM management unit 122 stores the design BOM, the manufacturing BOM, and the evaluation BOM in association with each other. The operation history management unit 123 manages the history of deletion, addition, and change of BOM components. The difference extraction unit 124 extracts a difference between the BOM and the BOM. The operation history reflection unit 125 receives the BOM data from the BOM management unit 122 and the history from the operation history management unit 123, and reflects them in the extracted BOM. The consistency checking unit 126 extracts a difference between the design BOM ver A and the design BOM ver B and checks the consistency. When the consistency check unit 126 determines that there is a mismatch, the mismatch factor extraction unit 127 extracts the reason. The unsteady process storage unit 128 stores a determination condition of what to do if there is a corresponding part and what to do if there is no corresponding part.
1 is a server and client system, the parts table generation system may be mounted on the same computer.

  In FIG. 2, the client 11 is connected to the server 12 via the network 13. The server 12 is a computer that includes an input device 31, a system device 32, and an output device 33. The system device 32 has a configuration in which a central processing unit 321, a main storage device 322, an auxiliary storage device 323, and an interface 324 are connected by a bus. On the other hand, the client 11 is a computer including an input device 21, a system device 22, and an output device 23. The system device 22 has a configuration in which a central processing unit 221, a main storage device 222, an auxiliary storage device 223, and an interface 224 are connected by a bus. The functional blocks described with reference to FIG. 1 are realized by a program executed by the central processing unit.

  The BOM generation system outputs product configuration information and part attribute information as design BOM from design data created by a product designer using a design tool such as CAD, imports it from the BOM input unit 111, and edits it with the BOM editing unit 112. A manufacturing BOM and an evaluation BOM are created, and the manufacturing BOM is transferred from the BOM output unit 114 to an ERP (Enterprise Resources Planning) system, and the evaluation BOM is transferred to a BOM evaluation tool such as environmental evaluation, cost evaluation, and productivity evaluation.

  In many cases, a designer uses a case designed in the past unless the design is completely new due to time constraints. When the CAD data created in the past is partially changed to create new CAD data, a design BOM is output, and a manufacturing BOM and an evaluation BOM for the design BOM are generated.

  In FIG. 3, the design BOM 51 of the diversion source indicates that the parts B to E are additionally configured to the part A. An operation history when the design BOM 51 is edited to create the manufacturing BOM 52 is recorded in the operation history management unit 123. In this operation, a part F and a part G are added to the part E. Similarly, an operation history when the design BOM 51 is edited to create the design BOM 53 is also recorded in the operation history management unit 123. In this operation, the part D is changed to the part D ', and the part E is changed to the part E'.

  The diversion designation unit 113 designates the production BOM 52 that is the diversion source and the design BOM 53 that is the diversion destination. For the design BOM 53 of the diversion destination extracted from the BOM management unit 122, the editing operation when the production BOM 52 is created is extracted from the operation history management unit 123. The operation history reflection unit 125 reflects the extracted editing operation on the design BOM 53 of the diversion destination, generates a manufacturing BOM 54, and stores it in the BOM management unit 122.

  FIG. 4 is a data format representing an operation history when the production BOM 52 is created from the design BOM 51. The operation history 61 includes a target part parent 611, a target part 612, an operation 613, and a change content 614. Specifically, a part F and a part G are added to the target part E whose parent is A.

  FIG. 5 shows a data format representing the difference between the design BOM 51 of the diversion source and the design BOM 53 of the diversion destination. In addition, FIG. 5 may be calculated | required by a difference or an edit history. The operation history 71 includes a parent 711 of the target part, a target part 712, an operation 713, and a change content 714. Specifically, the target parts D and E whose parent is A are replaced with parts D 'and E', respectively.

  In order to confirm whether or not inconsistency occurs due to the change in the design BOM, the consistency confirmation unit 126 confirms whether or not the operation history 61 can be reflected on the design BOM 53. The difference extraction unit 124 extracts a difference 71 between the design BOM 51 of the diversion source and the design BOM 53 of the diversion destination. The inconsistency factor extraction unit 127 matches the difference 71 with an operation that cannot be reflected, and extracts a change in the design BOM that caused the inconsistency.

  In FIG. 3, since the part E disappears due to the change that the part E in the difference 71 is replaced with E ′, the operation that the parts F and G are added below the child part E of the product A in the operation history 61 is reflected. Can not. For this reason, it is impossible to immediately and automatically create the manufacturing BOM 54 for the design BOM 53. In order to avoid such a phenomenon, if the non-stationary process defining unit 128 defines a non-steady process such as what kind of process is to be performed when the addition destination part has been replaced, By referring, it becomes possible to avoid inconsistency.

  FIG. 6 shows a data format representing a workaround for inconsistency defined in the unsteady process definition unit 128. The avoidance measure 81 includes an operation history side operation 811, a difference side operation 812, and an inconsistency avoidance measure 813. When the addition destination (parent part E) of the part added on the operation history side is exchanged in the difference (E → E ′), the operation history is reflected on the replaced part E ′. Add a part to the replaced part.

  In FIG. 7, first, the difference extraction unit 124 extracts a difference 71 between the diversion source design BOM 51 and the diversion destination design BOM 53 (S91). Next, it is confirmed whether or not the operation history 61 can be reflected on the design BOM 53. That is, the operation history management unit 123 searches for the target component of the difference 71 in the target component of the operation history 61 in order to confirm whether or not the reflection target component has been changed by the difference 71 (S92). The consistency checking unit 126 determines whether the target part exists (S93). If it does not exist here (NO), it means that the operation target part has not been changed and can be reflected, and the process ends. If present in step 93, the inconsistency factor extraction unit 127 extracts the content of the change made to the target part from the difference (S94). The unsteady process storage unit 128 extracts an inconsistency avoidance measure defined by the combination of the operation to be reflected and the change contents on the difference side (S95). This series of processing is performed on all operation history reflection target parts. Thereby, the manufacturing BOM 54 of FIG. 3 can be automatically generated.

  FIG. 8 shows a screen for designating a diversion-source manufacturing BOM and a diversion-destination design BOM that reflects operations performed on the diversion-source design BOM. In FIG. 8, the screen 80 is displayed on the output device 23 of the client 11. The selection button 81 is pressed to select a diversion source manufacturing BOM “ProductA1”. The screen 80 is in a state where the selection button 82 is pressed and the design BOM “DesignB1” to be diverted is selected. By pressing the execution button 83, a manufacturing BOM corresponding to DesignB1 is generated.

  According to the above-described embodiment, the editing operation history when the design BOM is edited to create the manufacturing BOM and the evaluation BOM is managed, and when the design BOM is changed due to the design change or the development of the succeeding model is performed. Thus, when a design BOM created in the past is diverted to create a new design BOM, the operation history performed on the BOM before the change (the diversion source) is re-executed. Here, by defining a workaround when the operation history cannot be reflected due to a change in the design BOM, there is no need to perform an editing operation for creating a manufacturing BOM or an evaluation BOM again for a new design BOM. BOM creation man-hours can be reduced.

It is a functional block block diagram of a parts table production | generation system. It is a hardware block block diagram of a parts table production | generation system. It is a figure explaining edit of design BOM and production | generation of manufacturing BOM. It is a figure explaining the data structure of an operation history. It is a figure explaining the data structure of an operation history. It is a figure explaining the data structure of a workaround of inconsistency. It is a processing flow figure which avoids inconsistency. It is a figure explaining diversion designation | designated GUI.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Client, 12 ... Server, 13 ... Network, 21 ... Input device, 22 ... System device, 23 ... Output device, 31 ... Input device, 32 ... System device, 33 ... Output device, 100 ... BOM generation system, 111 ... BOM input unit, 112 ... BOM editing unit, 113 ... Diversion designation unit, 114 ... BOM output unit, 121 ... Control unit, 122 ... BOM management unit, 123 ... Operation history management unit, 124 ... Difference extraction unit, 125 ... Operation History reflection unit 126 ... Consistency confirmation unit 127 127 Inconsistency factor extraction unit 128 128 Unsteady processing storage unit 221 Central processing unit 222… Main storage device 223… Auxiliary storage device 224… Interface 321 ... Central processing unit, 322 ... Main storage unit, 323 ... Auxiliary storage unit, 324 ... Interface.

Claims (6)

Editing the first BOM from the first design BOM;
Recording a first editing history of the first parts table;
Editing a second design parts table from the first design parts table;
Recording a second editing history of the second design parts table;
Generating a second parts table from the second design parts table based on the first editing history and the second editing history. A parts table generation method according to claim 1,
Furthermore, a parts table generation method including a step of investigating inconsistency between the first edit history and the second edit history. The parts table generation method according to claim 2,
The parts table generation method further comprising a step of avoiding the inconsistency when there is a mismatch between the first edit history and the second edit history. Computer
Means for editing the first BOM from the first design BOM;
Means for recording a first editing history of the first parts table;
Means for editing a second design parts table from the first design parts table;
Means for recording a second editing history of the second design parts table;
A parts table generation program for functioning as means for generating a second parts table from the second design parts table based on the first editing history and the second editing history. A parts table generation program according to claim 4,
A parts table generation program for causing a computer to function as means for investigating inconsistency between the first edit history and the second edit history. A parts table generation program according to claim 5,
A parts table generation program for causing a computer to function as means for avoiding a mismatch when there is a mismatch between the first editing history and the second editing history.

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