JP2006227664A - Part management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To select and apply to products optimum parts according to changes in the operational quality status of parts and conditions of part specifications in part structures for manufacturing the products. <P>SOLUTION: A part management system for providing alternative part management of parts necessary to manufacture products comprises: a storage device including at least part information consisting of part types, inventory information, quality information, purchase information and applicable model information, part table information representing product part structures, group part information grouping alternative parts applicable to the same product, and part quality standard information; and a control device for connecting a production management system for providing product shipping instructions, part arrangements, inventory management and the like, a quality control system for managing product defects on production lines, operational defects after shipping, and the like, and the storage device. The control device updates the part quality standard information in the storage device with part quality information from the quality control system, acquires optimum part information by reference to the part quality standard information and sends it to the production management system. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a production management method and production management support system for managing the quality and inventory of parts applied to products.

  In an engineering chain from product planning and development to design, manufacturing, and maintenance, there is a business support system that improves development and productivity by centralizing, sharing, and managing product information and processing processes. In component parts for manufacturing products of this system (hereinafter referred to as parts list), parts may change due to changes in part quality status after product planning or after parts shipment or parts procurement status during mass production. .

  Conventionally, this type of parts replacement is handled by changing the parts table managed by the production designer. Specifically, the alternative parts are selected from the alternative parts candidates determined in advance by the development designer, considering the procurement status of the current parts, the cost of the alternative parts, the delivery date, etc. Parts are selected. As a method for changing to this type of substitute part, for example, a system as described in Patent Document 1 is known. This is to control the production schedule and ordering timing of parts according to the order forecast status, and to suppress parts inventory. For parts that cannot be procured, it can be produced without missing parts by presenting alternative parts to the designer and selecting them. . It is said.

JP 2001-51710 A

  However, in the above-mentioned replacement method of alternative parts, if parts used by many models are stopped from parts supply departments (including parts manufacturers) or cannot be additionally procured in response to orders, When the use is stopped for some reason, there is a problem that it takes time for the selection work because alternative parts are selected for each model.

  Further, the system is a system for reducing the amount of parts in stock, and the most important quality in product manufacturing has a problem in that it is only an evaluation at a design stage for application to a product.

  Also, in recent years, it has become a variety and small volume production due to changes in the market environment and diversification of customer demands. Depending on the product, it is desirable to increase the product quality level, or to reduce the performance to a lower cost. Such a combination with component specifications such as component performance and cost is required. However, the above-mentioned parts management method has a problem that it takes time to work because the production designer must create the parts list while confirming with the development designer, production manager, purchasing manager, etc. Yes, parts could not be changed easily.

  The object of the present invention is to solve the above-mentioned problems, and in the component configuration for manufacturing a product, the optimum component is selected according to the change in the operation quality status of the component and the condition of the component specification. And providing a parts management system that can be applied to products.

  In order to solve the above-described problems, a parts management system for managing substitutes for parts necessary for manufacturing the product of the present invention is a part information comprising at least part type, inventory information, quality information, purchasing information and applicable model information. A storage device that includes a database, a parts table information database that shows the parts configuration of a product, a group parts information database that summarizes alternative parts that can be applied to the same product, and a parts quality standard information database; A production management system that performs arrangements, inventory management, and the like, a quality management system that manages product defects on the production line, operation failures after shipment, and the like, and a control device that connects the storage device; Updates the part quality standard information database of the storage device with the part quality information from the quality management system, It was set to be transmitted to the production management system with reference to the part quality standard information database of the storage device to get the optimum component information.

  According to the present invention, in a component configuration for manufacturing a product, it is possible to select and apply to the product an optimal component according to the operation quality status of the component, changes in the procurement status, and product specification conditions.

  Embodiments of the present invention will be described below.

  In a preferred embodiment, the parts management system according to the present invention preferably operates in conjunction with a quality management system and a production management system. The quality control system is a system for managing production line defects, operation failures after product shipment, and the like. The production management system is a system for managing product shipment instructions, parts arrangement / inventory management, and the like.

  In another embodiment, part type, inventory information, quality information, purchasing information and applicable model information (hereinafter referred to as applicable model code) are managed as part information, and the part type and applicable model are used as group part information. It is preferable to manage codes and component priority codes, and the component type and applicable model code of the component information are identified and registered as a group component by identifying the component type and applicable model code of the group component information. The parts registered in the group part are selected according to the registered priority conditions and applied to the product. The priority condition can be selected and defined from a plurality of selection conditions (hereinafter referred to as a component priority code).

  In another embodiment, it is preferable that the part quality standard can be set in advance, and when the operation quality level of the part deteriorates from the set quality level, the additional order can be stopped or the application to the product can be stopped.

  In another embodiment, it is preferable that the number of parts to be secured can be set and is not applied to a product, but can be secured for design evaluation and maintenance.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a system diagram showing an embodiment of a parts management system according to the present invention. In this system, a parts management system, a quality management system, and a production management system are connected by a network, and the parts management system and user terminals AZ are connected by a network. The parts management system includes a data display editing device, a control device, and a storage device, and the storage device stores part information, parts table information, group part information, and part quality standard information. The control device has a function of collecting necessary information from the quality management system and the production management system and rewriting the corresponding part information. In addition, the control device has a function of selecting a part most suitable for the condition to be applied to the product from the parts registered in the group part and applying it to the product.

  FIG. 2 shows an example for explaining a configuration diagram of component information in the component management system. The part information includes a part type for identifying the type of part, inventory information related to parts inventory, quality information related to part quality, purchasing information related to purchasing, and applicable model codes that are permitted to use the parts for each part code database. Stored in a storage device. The inventory information stores the inventory quantity managed by the production management system, the reserved quantity not to be applied to the product, the priority to use it preferentially, and the quality information is the quality managed by the quality management system The level, manufacturer data, performance level managed by design evaluation, and applicability to stop applying to the product when the quality level becomes extremely bad are stored, and purchase information is the cost managed by the production management system Stores whether or not the purchase deadline has passed, the purchase availability, the purchase deadline, and the number of delivery days as the lead time from arrangement to delivery.

  For example, the part code “a000001” has an inventory quantity “100” and is applied to the product so that the number of reservations “10” remains. Moreover, it is registered that it may be applied to the products of the applicable model codes “B01” and “B02”. The applicable model is registered in advance by a development designer as to whether it satisfies the specifications and quality of the product used. In addition, the part code “a000003” is used in preference to the applicable models “B01” and “B03” because there is a priority designation for preferential use of the product. Therefore, the part code “a000003” is applied to the above-described model code “B01” with priority over the part code “a000001”.

  3 and 4 show a configuration diagram of parts table information in the parts management system and an example for explaining the parts table. In the BOM information, a part priority code that encodes the priority conditions of the parts registered in the group parts and a BOM that indicates the part configuration for manufacturing the product are stored in the storage device as a database for each BOM code. ing. The component priority code is automatically set according to the combination of priority conditions shown in the example of FIG. As conditions for satisfying the priority conditions, there are those with a good quality level, those with a low cost, and those with good performance. Although the selection of the combination is not shown, it is determined by selecting from the pre-registered conditions.

  In the parts table of FIG. 4, for example, a part code is registered for a part that does not require setting of a substitute part such as line number 001 or line number 900. 6) is configured by registering the group code.

  FIG. 6 shows an example for explaining a configuration diagram of group part information in the part management system. The group part information includes the part type for determining the type of part to be applied, the applicable model code for determining which product to apply, the part priority code specified in the above parts table information, and the above part information. The part code specified in (1) is made into a database for each group code and stored in the storage device. As the component priority code, the priority code specified in the parts table information in which the group code is registered is automatically registered.

  In addition, only the part codes in which the part type registered in the part information and the applicable model code are matched are automatically registered. For example, the group code “ccc0001” is registered in the line number 002 of the parts table code “bbb00001” in FIG. 4 as the part type “HDD” and the applicable model “B01”. In addition, the component priority code “A” registered in the above-described component table code “bbb00001” is automatically registered in the component priority code of the group code. The component type “HDD” registered in the component codes “a000001” and “a000003” and the applicable model code “B01” registered in the group code “ccc0001” in FIG. B01 "and registered.

  7 and 8 show examples for explaining the configuration diagram of the part quality standard information. In the manufacturer, a quality standard for setting the quality standard specified by the component manufacturer and the quality standard when used in combination with a product is set. For example, in the case of the component type “HDD” in FIG. 7, the ordering of the component is stopped at the quality level “3.00”, and the component of the quality level “5.00” or higher is registered as suspended. There is no problem in the case of a quality level such as the operation status (B) in FIG. The ordering of parts can be stopped at the time of reaching “3.00”, and the defective stock at the stoppage level can be reduced.

  Next, the process of changing the “applicability / prohibition” information of the component information in the system will be described with reference to the flowchart shown in FIG. First, the component quality level managed by the quality management system is read by the control device of the component management system, and the quality level registered in the component information is rewritten. At this time, when the quality level exceeds the use stop level or the use stop level of the part quality standard information shown in FIG. 7, the control device sets the applicability information of the quality information registered in the part information to “impossible”. Rewritten. When the quality level exceeds the order stop level or the order stop level and is less than the use stop, the purchase propriety information registered in the part information is rewritten to “impossible”. Further, also when the purchase deadline registered in the part information is reached, the purchase availability information is rewritten to “impossible”.

  Next, component change processing in the system will be described with reference to the flowchart shown in FIG. First, the production management system issues the product production instructions, for example, the model and number of products to be produced, the shipping date, etc., to the parts management system. The parts management system controller gives priority to the parts code registered in the group code. It is determined whether there is a priority designation for use, and if there is a part with priority designation, that part is selected. Further, when there is no priority designation or when there are two or more priority designation parts, the part designated by the part priority code of FIG. 5 is selected.

  For example, when the component priority code “A” in FIG. 5 is selected, the quality that is the first condition with the first highest quality level is registered in the component information from the component codes registered in the group code. When there are two or more parts having the same quality level, which are discriminated and selected from the level, the part with the lower cost, which is the second condition, is discriminated from the cost registered in the part information and selected. When parts having the same conditions are selected, a third condition having good performance is selected.

  Next, it is determined from whether the selected part is an applicable part or not, which is registered in the part information. If an inapplicable part is selected, the first condition is determined from the part code registered in the group code. If there are two or more of the same level, the second best quality level is determined according to the priority condition described above. It is selected repeatedly such as being selected.

  After the parts applicable to the product are selected, if the inventory for the number of units produced is secured or the inventory is determined from the inventory quantity registered in the part information, it is applied to the product. Further, if there is no inventory, a purchase request is issued if purchase is possible from the purchase availability information registered in the part information, and the product is procured to be applied in future production. If it is a non-purchasable part, the next part is selected according to the above-mentioned priority condition.

The system diagram which shows schematic structure of the components management system by one Example of this invention Diagram showing information structure of parts Figure showing the information structure of the bill of materials A diagram conceptually showing the structure of a bill of materials Diagram showing component priority codes Diagram showing information structure of group parts Figure showing the information structure of parts quality standards A diagram conceptually showing the transition of quality levels The figure which shows the flowchart of component information change The figure which shows the flowchart of the part change in a parts management system

Claims (1)

In a parts management system that manages substitutes for parts necessary for manufacturing products,
A parts information database consisting of at least part type, inventory information, quality information, purchasing information and applicable model information, a parts table information database that shows the parts configuration of a product, and a group parts information database that summarizes alternative parts that can be applied to the same product A storage device including a parts quality standard information database;
A production management system that performs product shipment instructions, parts arrangement, inventory management, etc., a quality management system that manages product defects on the production line, operation failures after shipment, and the like, and a controller that connects the storage device Prepared,
The control device updates the component quality standard information database of the storage device with the component quality information from the quality management system, and acquires the optimal component information by referring to the component quality standard information database of the storage device. A parts management system that transmits to the production management system.

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