JP2003122798A - Product designing device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] Conventionally, processes from structural design to mold design of a product by three-dimensional CAD are separate processes, and the process period has been prolonged and the cost has been high. SOLUTION: A product design information storage unit 40 stores product design information for each product, and a mold design information storage unit 80 stores mold design information for each product. When designing a product,
The product design information is read from the product design information storage unit 40 and the die design information is read from the die design information storage unit 80, and the die design is performed based on the product structure and the die design information based on the product design information.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a product design apparatus. In particular, the present invention relates to a product design device that performs product design and product mold design.

[0002]

2. Description of the Related Art CAD devices have been used in various forms in product development. For example, a three-dimensional CAD device is used to design a three-dimensional structure of a product. The product design drawing obtained by three-dimensional CAD is used for evaluation such as structural analysis.

Further, it is also practiced to design a mold used for manufacturing a product by using a three-dimensional CAD device. Based on this mold design, a product mold is manufactured.

[0004]

Conventionally, the structural design and die design of a product by three-dimensional CAD are separate processes, and if the structural design of the product is changed, the die design is re-designed accordingly. This had to be done, resulting in a long product development period and high costs.

Therefore, an object of the present invention is to provide a product design apparatus which can solve the above problems.

[0006]

That is, the present invention relates to product design information for designing a product for each product in a product design apparatus for designing a product, and component parts used for the product. Depending on the product to be designed, a product design information storage unit that stores component design information, a mold design information storage unit that stores mold design information for designing a mold for manufacturing a product for each product. A design information reading unit for reading the product design information and the component design information from the product design information storage unit, and arranging the component parts according to the product design information and the component design information, and a structure of the product A structure designing unit for designing, a design information reading unit for reading the mold design information from the mold design information storage unit according to the product to be designed, the mold design information, and Depending on the component arrangement according to serial structural design portion, and a mold structure determination unit for determining the type of structure of the product.

The component design information of the present invention may include constraint conditions for producing the component, and the mold structure determination unit may determine a mold structure that satisfies the constraint conditions.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described through embodiments of the invention.

FIG. 1 shows a product design apparatus 10 according to an embodiment.
It is a block diagram showing the structure of. The product design device 10 is
Product design information reception unit 20, product design information reading unit 30, structure design unit 50, product CAD data output unit 60, mold design information reading unit 70, mold design information storage unit 80, mold structure determination unit 9
0 and a die structure CAD data output unit 100.

The product design information receiving unit 20 receives design CAD data representing a product design and a product name defining a standard basic configuration of the product from an operator via an input device such as a keyboard and a mouse (not shown).

The product design information reading unit 30 follows the product name accepted by the product design information accepting unit 20 and provides procedure information (product design parameters) for designing the product and boss ribs used for the product. The information about the constituent parts is read from the product design information storage unit 40 described later. Further, the product ID corresponding to the product name is read and transmitted to the mold design information reading unit 70 described later.

The product design information storage section 40 includes a product table 42 and a component table 44. The product table 42 stores the product name and procedure information (product design parameter) for designing the product in association with the product identification information (product ID) (see FIG. 2). For example, the instrument panel has different specifications of the instrument panels A to D (product ID (S001 to S004)), and the current product design parameters are associated with each other. This product design parameter includes information (constituent part ID) for identifying constituent parts such as boss ribs used, and indicates a standard position when these constituent parts are installed.

The component table 44 is associated with information (component ID) for identifying a component such as a boss rib, and the design of the component name and the constraint condition in the production technology according to the material used. Store information (see FIG. 3).

The structure design unit 50 is a product design information reception unit 2
The structural design of the product is performed based on the design CAD data received in 0, the product design parameters read from the product design information storage unit 40, and the design information of the component parts such as the boss ribs, and the necessary component parts are arranged. Done,
Product CAD data representing the structure of the product is generated. The information regarding the arrangement of the components determined here is transmitted to the mold structure determination unit 90.

The product CAD data output unit 60 outputs the product CAD data generated by the structure design unit 50 to an external storage device (not shown) or the like.

The mold design information reading unit 70 reads the design information of the mold necessary for manufacturing the product from the mold design information storage unit 80 described later according to the product ID read by the product design information reading unit 30.

The mold design information storage unit 80 includes a standard mold table 82 and a mold parts table 84. The standard type table 82 stores the layout data type necessary for manufacturing the product and the information for identifying the mold part (mold part ID) in association with the product ID (see FIG. 4). This table gives the standard structure of the mold for each product.

Further, the mold part table 84 has a mold part ID.
A mold part name, an individual name, and a mold design parameter are stored in association with (see FIG. 5). The mold design parameters are
For example, in the case of the undercut-processed structural part A (slide core), the amount of undercut, the amount of slide stroke, the inclination angle of the slide core, etc. are specified.

The mold structure determining unit 90 arranges the mold parts corresponding to the constituent parts with respect to the standard structure of the mold according to the constituent parts arranged by the structure designing unit 50, and A type structure CAD data representing the structure is generated.

The mold structure CAD data output unit 100 outputs the mold structure CAD data generated by the mold structure determination unit 90 to an external storage device or the like.

Next, the operation of the product design device 10 will be described. FIG. 6 is a flowchart showing the operation of the product design device 10. First, the operator receives product design information (design CAD data indicating a product design and its product name) (S10). Based on the received product design information, the product ID, the product design parameter for the product, and the design information for the component parts such as the boss rib are read from the product design information storage unit 40 (S20). Here, it is preferable that the design information of the component parts takes into consideration the constraint conditions in the production technology. Subsequently, product CAD data representing the structure of the product is generated based on the design CAD data, the product design parameters, and the information about the component parts (S30).
If the design information of the component parts includes a constraint condition in production technology, a product C that satisfies the constraint condition.
AD data is generated.

On the other hand, in parallel with the reading of the product design parameters, based on the product ID read from the product design information storage section 40, information on the standard structure of the mold required for manufacturing the product (mold design (Parameter) is read from the mold design information storage unit 80 (S40). Then, according to the arrangement of the constituent parts included in the generated product CAD data, the mold parts corresponding to the constituent parts are arranged in the standard mold structure of the product, and the mold structure CAD data is generated ( S50). In addition, when the design information of the component includes a constraint condition in the production technology, the generated die structure CAD data automatically becomes the data satisfying the constraint condition.

Design information for each product,
By having design information about the mold for manufacturing each product, and performing product design and mold design in conjunction with each other,
The type structure is uniquely determined as the product design progresses. As a result, the steps from product design to die design can be significantly shortened and cost can be reduced.

[0024]

As is apparent from the above description, according to the present invention, the process period from product design to mold design can be shortened.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a product design device 10 according to an embodiment.

FIG. 2 is a diagram illustrating a product table 42 included in a product design information storage unit 40.

FIG. 3 is a diagram exemplifying a component table 44 included in a product design information storage unit 40.

FIG. 4 is a diagram exemplifying a standard type table 82 included in a type design information storage unit 80.

FIG. 5 is a diagram illustrating a mold part table 84 included in a mold design information storage unit 80.

FIG. 6 is a flowchart showing the operation of the product design device 10.

[Explanation of symbols]

10 product design device, 20 product design information reception part, 30
Product design information reading unit, 40 Product design information storage unit, 4
2 product table, 44 component parts table, 50 structure design part, 60 product CAD data output part, 70 type design information reading part, 80 type design information storage part, 82 standard type table, 84 type part table, 90 type structure determination part ,
100 type CAD data output section.

Continued front page    (72) Inventor Yoshio Shirai             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Shigeharu Ueyama             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Koji Eguchi             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Goro Takahashi             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. (72) Inventor Takatoshi Negishi             1 Toyota Town, Toyota City, Aichi Prefecture Toyota Auto             Car Co., Ltd. F-term (reference) 5B046 AA05 BA00

Claims (2)

[Claims] 1. A product designing device for designing a product, product designing information storing product designing information for designing a product for each product, and component designing information about components used in the product. A storage unit, a mold design information storage unit that stores, for each product, mold design information for designing a mold for manufacturing a product, and the product design information storage unit to store the product according to the product to be designed. A design information reading unit that reads design information and the component design information; a structure design unit that arranges the component according to the product design information and the component design information and performs a structural design of the product; A design information reading unit that reads the mold design information from the mold design information storage unit according to a product to be processed; and the configuration by the mold design information and the structure design unit. A product design apparatus, comprising: a mold structure determination unit that determines a mold structure of the product according to the arrangement of parts. 2. The component design information includes constraint conditions for producing a component, and the mold structure determination unit determines a mold structure that satisfies the constraint conditions. Item 1. The product design apparatus according to item 1.