JP2003228590A - Design support system - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the efficiency of design work for machine products from the perspective of production. SOLUTION: A product model 100 representing a product, a mold model 200 representing a mold for forming a coarse material of the product, and a machining model 300 representing a machining portion which is a portion removed from the coarse material by machining. Is centrally managed by the design / manufacturing data management unit 10. Those models 100-300
Is based on a three-dimensional solid model representing a shape, and for each component of the solid model, specifies the manufacturing requirements of a part corresponding to the element (for example, a working tool to be used and a surface roughness to be realized). The attribute information shown in FIG. In the design / product data management unit 10, an element model representing a standard part of a mold and a machining part is registered. At the time of design, an appropriate element model is searched and arranged in the mold model 200 and the machining model 300. Doing so can define a significant portion of these models.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a system for supporting product design in consideration of production processes.

[0002]

2. Description of the Related Art In developing various products such as mechanical products, not only design of product shape (referred to as product design) but also design for production preparation of the product is required. For example, in automobile engine design, in order to prepare for production, the design of a mold such as a die for making a rough material of a product (called die design) and the design of cutting and other machining processes (machining process design and Call).

In product design, the finished shape of the product is designed.
In recent years, a desired three-dimensional product shape can be efficiently designed by using a three-dimensional CAD system. Further, in the mold design, the shape of the mold for producing the rough material which is the material of the product is designed. Also in the die design, the efficiency of the design work is improved by using the three-dimensional CAD. In the machining process design, the machining procedure for obtaining the designed finished shape of the product from the rough material is designed. One processing content is represented by a processing machine and a processing tool to be used, cutting conditions and other processing conditions. In order to complete a product, it is generally necessary to perform processing in a plurality of steps, and the entire processing step is a sequence of processing conditions in each of these steps.

Conventionally, it is general that the product design department first designs the product shape, and based on this, the die design department and the machining process design department examine the requirements in terms of production technology and proceed with the design in that order. there were. Due to such division of work, the product design created by the product design department may include shape parts that cannot be manufactured, and the time or financial cost required for manufacturing may be large. In many cases, it's not enough. In such a case, if a minor correction is sufficient, the mold design department or the machining process design department will make a correction.

[0005]

However, if the product design created by the product design department is largely defective in terms of production technology, returning to the product design department to make a significant design change may cause delay in development, or On the contrary, if there is no time to develop, it would be necessary to move to production without being able to complete the design enough for cost.

[0006] Further, the product design of the product design department is a three-dimensional C
Although it is created as AD data, design modifications in the mold design department and machining process design department have been done based on the paper drawings created based on the CAD data, and are finally produced. The shape of the product to be processed is not reflected in the CAD data, or even if it is reflected, the work requires a considerable amount of labor. For information on production technical requirements,
Recorded in paper drawings and in-house database in the department of mold design and machining process design, and poorly associated with CAD data of product design. For these reasons, even if the design case is used for designing a later product, it is necessary to collect the CAD data and the paper drawings individually held by each design department in order to know the whole picture of the design case. There was a problem that it took time.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a system for supporting efficient design of product shapes, molds, and processing steps. Another object of the present invention is to provide a system capable of managing design information of product shapes, molds, and processing steps so as to be useful for subsequent product design.

[0008]

In order to achieve the above object, the present invention provides a product model representing a product, a mold model representing a mold for forming a rough profile of the product, and machining from the rough profile. As a machining model that represents a machining site that is a part to be removed by a 3D solid model that represents the shape of each of the product, the mold, and the machining site, and manufacturing requirement attributes associated with each component of the solid model. Generate models containing information and their product models, type models,
Model managing means for managing machining models in association with each other, and the product model managed by the model managing means,
User interface means for displaying information on the mold model and the machining model in response to a display instruction from a user, and for accepting operation instructions for each model.
And a model support unit for updating the product model, the mold model, and the machining model while maintaining mutual consistency in accordance with an operation instruction received by the user interface unit. provide.

In a preferred aspect of the present invention, the design support system has a standard information database in which, for each predetermined product classification, the design / manufacturing requirements of the mold and the design / manufacturing requirements of the processed parts which are standard in the product classification are registered. Then, the specification of the search condition is accepted from the user, the product category corresponding to the search condition is obtained, and the standard mold design / design in the obtained product category is performed.
And a search means for searching the standard information database for manufacturing requirements and processing part design / manufacturing requirements and presenting them to the user.

[0010] In a further preferred aspect, the standard information database includes, as one of the standard mold design / manufacturing requirements and machining part design / manufacturing requirements in the product classification, the component parts and machining parts of the product classification of the product classification. An element model including a solid model defined as a standard part and standard manufacturing attribute information associated with the constituent elements of the solid model is registered, and the model management means is an element searched by the search means. A function of updating the mold model or the machining model by arranging the model at a location designated by the user in the mold model or the machining model is provided.

In still another preferred mode, the model management means expresses the product model based on a combination of the mold model and the machining model.

[0012] In still another preferred mode, the user interface means includes an operating means for operating the die model, an operating means for operating the machining model, and an operating means for operating the product model. Prepare for each,
Each of these operating means is characterized in that it can display a basic skeleton model indicating position information of main product parts as a reference model.

In still another preferred aspect, the model management means can register, with each component of the product model, the mold model, and the machining model, predetermined manufacturing result information relating to the component in association with each other. Is characterized in that.

In another preferred aspect, the design support system is such that a set of a product model, a model model, and a machining model for one product managed by the model management means is a combination of main specification values of the product. And that at least one of the identification information of the product can be searched.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention (hereinafter referred to as embodiments) will be described below with reference to the drawings.

FIG. 1 is a diagram for explaining a product design / manufacturing cycle using the design support system according to the present invention. In FIG. 1, A indicates work of the product design department, B indicates work of the rough material department, and C indicates work of the machining department.

Conventionally, the product design department first designs the shape and structure of the product after concept design (referred to as product design). Based on the result of the product design, the rough forming department makes the mold and the rough forming material. (The die design) was performed by the machining department, and the machining department designed the machining process for the rough shape material (called the machining process design). On the other hand, in the present embodiment, as shown in FIG. 1, when the concept design (S10) is completed, based on the resulting basic skeleton model (skeleton model),
The product design department, rough material department, and processing department
12), mold (coarse shaped material) design (S14), and machining process design (S16) are performed in parallel. Product design, mold (rough material)
Since designing and machining process design require specialized knowledge and experience unique to each, conventionally, different persons or departments (hereinafter simply referred to as departments) are in charge, and it is assumed that the same applies to the present embodiment. There is. However, in the present embodiment, it is possible for these different departments to design different aspects (product shape, mold, machining process) of the same product almost concurrently and consistently.
The respective departments access the common design / manufacturing data management unit 10 to perform design work.

The system configuration of the design support system of this embodiment including the design / manufacturing data management unit 10 is shown in FIG. As shown in this figure, the design / manufacturing data management unit 10
Includes a model DB 12 that holds a model that represents each side of a product that is a design target, and a standard information DB 14 that holds information on standard design / manufacturing requirements for designing / manufacturing this product.

The model DB 12 stores
As shown in FIG. 3, the product model 100 created by the product design department and the mold (coarse material) model 20 created by the rough material department.
0, the machining model 300 created by the machining department is held in association with each other.

The mold model 200 is a three-dimensional solid model representing the shape of the mold. The mold model 200 is represented as a set of solid models of each mold component that constitutes the mold.
This die model is associated with process information 210 indicating requirements for casting and forging of a rough material using the die (die temperature and casting time at the time of casting) and production requirements of the die itself.
As the process information 210, requirement information corresponding to each element (a model of an individual mold part or a solid (a solid), a surface, a ridge line, etc. which constitutes the model of the mold part model) constituting the mold model 200 is registered. be able to. Type model 2
00 is roughly divided into the standard part 22 as shown in FIG.
0 and the shape-dependent portion 230. Standard part 220
Is a part configured using the standard information registered in the standard information DB 14. On the other hand, the shape-dependent portion 230 is a portion that depends on the shape of an individual product, and this portion is designed with its shape uniquely at the time of mold design. For example, since the structure part of the mold is substantially determined according to the required specifications, it can be configured by using standard mold shape elements prepared in advance. On the other hand, the product parts (for example, cores) that make up the product surface of individual products and the mold peripheral parts such as cooling pipes around them often have unique shapes, so they are designed individually as shape-dependent parts. To be done.

Incidentally, the rough-shaped material cast and forged by using the mold is
Since it has a complementary relationship with the shape of the mold, a solid model representing a rough material can be easily created from the mold model 200. Of course, it is also possible to register the solid model of the rough material at the same time as the die model 200 in the design / manufacturing data management unit 10 so that both can be referred to.

The machining model 300 represents the shape of a portion (referred to as a machining portion) in which the rough-shaped material is machined 3
It is a three-dimensional solid model. The processed portion can also be regarded as a portion that is removed from the rough material by machining.
A single rough material often has a plurality of processed parts, and the processed model 300 is expressed as a set of solid models of the respective processed parts. The machining model 300 has
The process information 310 indicating the processing content of each processing portion is associated. The process information 310 can be registered for each processed portion or for each element (three-dimensional or surface) that constitutes the processed portion.

For example, the processed portion 500 of the hole shown in FIG.
As shown in FIG. 6, it can be represented by a set of solid models of three unit machining elements (called machining method shape parts) 510-1 to 510-3. One machining method shape part 510 corresponds to a unit of machining content performed using one machining tool, and process information 520-1 to 520-3 representing the machining content is set as an attribute for this. In the process information 520, a processing machine and a tool for executing the processing, various processing conditions, etc. are registered. In addition, information indicating the application order (processing order) of each processing method shape part 510 is set in one processing region 500. The processing model 300 has such a processing portion 5
It is expressed as a set of 00.

The product model 100 is the model model 200.
And the machining model 300 can be combined. That is, since the shape of the product is formed by scraping the processed portion from the rough shape material, the solid shape of the processed portion represented by the processing model 300 is subtracted from the solid shape of the rough shape material that can be obtained from the mold model 200. Thus, the three-dimensional shape of the product model 100 can be expressed.
If the product shape has a portion that cannot be represented only by the combination of the die model 200 and the machining model 300, the shape of the portion can be represented in the product model 100.

Further, as shown in FIG. 3, a product model 100
The manufacturing result information 400 indicating the measurement result of a manufactured product or the evaluation result by a person can be associated with and registered in the. Since the manufacturing result information 400 exists for each target part for measurement or evaluation, it can be registered in association with elements corresponding to those target parts such as the die model 200 and the machining model 300. For example, the measurement result of the hole machining result can be registered in association with the element of the hole machining site of the machining model 300.

The model DB 12 described above can be used for registering a model group that defines the product currently being designed, and can also be used as a database for storing the model group of products designed in the past. Therefore, for the model group that defines one product, reference information that identifies the product is registered in the model DB 12. As the reference information, identification information of the product (for example, development code, project number, etc.) or information indicating characteristics of the product (for example, combination of main specifications of the product) can be used. The user designates a product or development code or major specifications as a search condition, and the model DB of the past design example models corresponding to the search condition is designated in the model DB.
You can search from 12.

Further, with respect to a series of information (illustrated in FIG. 3) defining one product registered in the model DB 12, the know-how applied at the time of designing and manufacturing the product,
For example, it is also preferable to add in the form of an electronic document. As a result, the know-how can be provided as reference information when designing later.

Next, the standard information DB 14 of the design / product data management unit 10 will be described. In the standard information DB 14,
Die requirement information section 16 that holds standard design / manufacturing requirement information in die (rough material) design, and machining requirement information section 18 that holds standard design / manufacturing requirement information in machining design
Includes and.

In the mold requirement information section 16, among the shape of each part of the mold (or rough material) and various attribute information, standard information determined by the main specifications of the product to be designed is registered. For each combination of the values of the main specifications of the product (for example, “engine type”, “displacement amount”, “maximum output”, etc.), the mold requirement information section 16 includes a mold (or rough material) corresponding to the combination. ) Standard part shape and standard mold attributes (for example, casting and forging conditions using the mold, dimensional tolerance of the finished rough shape material, manufacturing method of the parts that make up the mold, etc.) are registered. The registered information can be searched by a combination of original values.
The shape information of the standard part is registered as a solid model, for example. When the standard part of the mold or the rough material is divided into a plurality of parts, the standard shape information is registered for each of the parts. It is also possible to register a plurality of standard shapes for one part so that they can be selected at the time of design. Some of the standard mold attributes (process information) are for the entire mold (for example, the mold temperature when casting a rough material), and some correspond to a part of the mold (for example, material information of the punching blade of the mold). Etc.) Therefore, it is preferable that these type attributes are registered so that the corresponding portions can be specified (for example, the type attributes are stored in association with the solid model of the corresponding portion).

In the processing requirement information section 18, the information of the processed part which is defined in advance as the standard processed part in the product type represented by the combination of the main specifications is registered. The information of the standard processing part is composed of a solid model showing the shape of the part (that is, the shape representing the part to be cut off from the rough material by the processing) and the processing attribute (process information) of this processing part. As shown in FIG. 6, the standard machining part can be composed of a plurality of machining method shape parts. For each machining method shape part, a machining tool, a machining machine, a machining procedure, a machining condition, and a dimensional tolerance to be used. The machining attributes such as surface roughness can be registered. It is common that one product has a plurality of processed parts, and a standard processed part is defined for a part or all of the plurality of processed parts. The information on the standard processed portion can be searched by specifying the product type by a combination of main specification values and the like, and further specifying the information specifying the processed portion. As the information for identifying the processed portion, for example, the name of the processed portion (for example, “machining knock hole”)
Etc.) and the location (eg, “engine block top surface”) can be used.

In addition, it is also preferable to register know-how information for designing and manufacturing in the standard information DB 14 so that it can be referred to during designing work. The know-how information has various levels, such as design know-how for each product type specified by a combination of main specifications and design know-how for a part of a product (a part of a mold, individual processing parts, etc.). Exists. Design / Manufacturing Data Management Department 10
Responds to input of search conditions from the designer, and searches and provides know-how information of a level corresponding to the search conditions.

The designer uses the standard information DB 14 described above.
Then, standard type information and machining information prepared in advance for the product type of the design target are retrieved, and a model model, a machining model, and a product model are constructed using this.

The design support device 20 is a CAD device used for this design work. The design support device 20 is a solid modeler capable of handling shapes such as products and molds as a three-dimensional solid model, and handles process information such as mold attributes and machining attributes in association with each component of the solid model. (That is, the process information is stored in association with the solid model, or the process information stored in association with the solid model is read out and displayed).

The manufacturing result input device 30 is a device for inputting measured values and evaluation information about the manufacturing result of the designed product. Measurement values and evaluation information input from this device are registered in the model DB 12 as manufacturing result information 400.

Returning to FIG. 1 again, the flow of design work using the system of this embodiment will be described. In this embodiment, the product design department first designs the product concept (S10) and creates a basic skeleton model. In conceptual design, the main specifications of the product are determined from the design goals of the product, and the rough layout of each functional part of the product is determined so as to satisfy the design goals and the main specifications. For example, in the case of engine design of a vehicle, when the engine type (V type, in-line type, etc.), the number of cylinders, the displacement, the required output, etc. are determined, the positional relationship of the functional parts such as the cylinders forming the engine (individual positions and (Orientation etc.) is decided to a considerable extent. In the conceptual design, a basic skeleton model that expresses such a positional relationship of each functional part is created.

When the conceptual design is completed, based on this basic skeleton model, the product design department, the rough material department, and the machining department design the product (S12), the die (coarse material), and the machining process. (S16) is executed in parallel, and the product model 10
0, a mold (coarse shaped material) model 200, and a machining model 300 are created. As a suitable progress method of the design work at this time, for example, the designers of the product design department, the rough material department, and the processing department are all present in one place, and the designers of the product design department, the design department while exchanging opinions while seeing the same display. The method of proceeding is preferable.
In this design work method, those designers operate the design support device 20 connected to the design / product data management unit 10 to create a die (rough material) model, a machining model, and a product model. In this case, a die model, a machining model, and a product model are displayed as a list on a display device connected to the design support device 20, or are displayed while switching between these models according to a user's operation. The person proceeds with the design operation (that is, the model editing work) while seeing this display. At this time, the designers in each department may proceed with the design work while looking at the common display device, or in the environment where the designers can consult (for example, in the same room), display their own terminals. You may proceed with the design (product, mold, processing process design) that each person is in charge while watching. In the former case, for example, by projecting the model display on a large screen,
It can be made easier for designers to see. In the latter case, it is preferable that the designers of each department attend the place where they can have a direct conversation with each other and proceed with the design work, but realize the exchange of user messages between terminals such as instant message and chat. By using the technology, design work can be carried out in cooperation with each other even when those designers are in remote places.

In any of these cases, the consistency (consistency) among the product model 100, the mold (coarse material) model 200, and the machining model 300 at the time of design (ie, model editing) work is determined by the design. It is managed by the manufacturing data management unit 10. This consistency management can be performed, for example, in product model 10
0 can be realized by a configuration in which the model (coarse material) model 200 and the machining model 300 are referred to. in this case,
The shape and requirement information (casting / forging requirement, processing attribute, etc.) of each part of the product model 100 is displayed, and the shape / requirement of the corresponding part in the mold (rough material) model 200 or the processing model 300 corresponding to that part. It can be done by referring to the information.

In the design work according to the present embodiment, basically, for the standard part registered in the standard information DB 14, information registered in the standard information DB 14 (attribute information such as a solid model and manufacturing requirements attached thereto) ) Is applied as it is to the model to be designed. In this case, the designer inputs each main specification value of the product to be designed as a search condition from the design support device 20, and uses the information group searched from the standard information DB 14 as the one corresponding to the search condition. Then, the product model, die model, and machining model are edited. To edit the model in this case, place the searched solid model of the standard part (with attribute information) in the desired position of the corresponding model (that is, the mold model for the standard part of the mold and the machining model for the standard machining part). This is done by placing them. As a result, the solid shapes of the mold model and the machining model are formed, and at the same time, attribute information such as manufacturing requirements attached to the arranged solid model is incorporated into these models. The mold (coarse material) model is designed by the designer of the rough material department, and the machining model is designed by the designer of the machining department.
Each standard part will be incorporated into the model according to the basic skeleton model. At this time, each designer can proceed with the design by consulting with the designers of other departments who are present together if necessary.

Regarding the non-standard part (the part for which standard information is not prepared), the designers of the product design department, the rough material department and the processing department consult with each other, and the shape (dimension, dimensional tolerance, surface roughness) of the part is consulted. (Including degrees, etc.) and how to achieve that shape. Here, as the method for realizing the shape, the type of the method for realizing the shape (whether it is realized as a shape of a rough shape material or by machining) and manufacturing requirements for forming the shape (for example, casting and forging) Conditions and processing attributes)
And so on. Then, the determined shape and attribute information such as manufacturing requirements are reflected in the mold model and the machining model. At this time, the processing mechanism and user interface for editing (adding, deleting, changing, etc.) the 3D solid shape for the die model and the machining model are the same as those of the conventional general 3D solid modeler. Good. To set attribute information such as manufacturing requirements, the user specifies the model components (vertices, edges, faces, solids, and collections of any of these) to be set, and inputs the attribute contents to be set for those components. By receiving. At this time, the shape information is reflected in the model as a solid shape,
Information items such as dimensional tolerances, surface roughness, and manufacturing requirements are reflected as attribute information of elements corresponding to the information items in the model. Then, a product model is configured by a combination of the mold model and the machining model in which these are reflected.
In this work, the designer of the product design department generally proposes shapes and parts materials to realize the required performance (specified by the main specifications), and A non-standard part can be created by collaborating with the designer, such as by proposing a revised proposal or opinion for the proposed shape, etc., from the viewpoint of ease of manufacturing, manufacturing cost, etc., and considering the design again according to the revised proposal. Is designed. The solid model and the attribute information of the non-standard part of the mold and the processed part created by this design work are adopted as a standard and registered in the standard information DB 14 when the manufacturing result of the part is highly evaluated. You can also do it.

As described above, the designers of the respective departments have discussed the process of determining the shape and the like of the non-standard portion while consulting on the spot. Instead, the designers of the product design departments use the product model 100 on the product model 100. By designing the shape and design requirements (for example, dimensional tolerance and surface roughness) of the non-standard part, the designers of the rough material department and the mold department look at the product model 100 and check the manufacturability (manufacturability It is also possible to consider the cost), and if there is a problem with the productivity, notify the product designer of the opinions and suggestions for improvement by verbal or instant message. In this case, the shape of the improvement plan and the attribute information accompanying it can be set in the product model 100, and if this is displayed together with the shape of the original design plan, the designer can easily study. In the case of this procedure, when it is determined that the finally determined shape portion is to be formed by, for example, machining, the design / manufacturing data management unit 10 informs the shape portion (solid model and attribute information associated therewith). ) The product model 100
From the machining model 300 to the machining model 300, or by setting the corresponding part of the machining model 300 to refer to the shape part of the product model 100, the consistency between the models is maintained. Even when it is determined that the determined shape portion is realized as the shape of the rough shape material, similarly, by reflecting the information of the shape portion of the product model 100 in the mold (rough shape material) model 200, the model shape Maintain consistency.

In the flow of the above design work, the designer of each department appropriately refers to the model group, manufacturing result information, and know-how information of past product design examples registered in the model DB 12, and designs with reference to these. You can proceed. Design examples of past products can be searched by identification information (project number, etc.) of the product, a combination of main specification values that specify the performance of the product, and the like.

By the above work, the shape of each part of the product and various conditions (processing attributes etc.) for realizing the shape are
It is reflected in the product model, mold model, and machining model. In addition to this, the designer of the rough material department determines the procedure for manufacturing the rough material using the mold, and the designer of the machining department determines the machining procedure to be performed on the rough material. As the machining procedure, for example, it is determined in what order the machining content corresponding to each machining method shape component included in the machining model is executed. Information on the rough material manufacturing procedure and the machining procedure is also incorporated in the process information 210 and 310 of the die model 200 and the machining model 300 of the model DB 12.

In this embodiment, in this way, the model registered in the standard information DB 14 is used for the standard part, and the design staff of each department decides the design content for the non-standard part while discussing at any time. I will do it.

When the design is completed in this way and the product model 100, the die model 200, and the machining model 300 are completed, the rough material department produces a die according to the die model 200 (S20), and casts using the die. A rough material is manufactured by performing forging (S22). On the other hand, the machining department creates a measurement program for measuring NC (numerical control) machining data and machining results from the machining model 300 and the like (S30), and uses the NC machining data and the like to machine the rough shaped material. Processing is performed (S32).

The product is manufactured as described above. In the present embodiment, the state of the manufactured product is further measured and evaluated, and the information such as the measured value and the evaluation result obtained as a result is manufactured. The result information 400 is registered in the design / manufacturing data management unit 10 in association with the model group of the product.
The measured values in the manufacturing result information 400 include, for example, measured values such as the dimensions and surface roughness of the part formed by machining, manufacturing accuracy, and processing accuracy. This measured value is the processing model 3
It is measured using the measurement program created in S30 based on 00. The evaluation result is, for example, the results of various tests on the product of the manufacturing result, and evaluation comments of the evaluator for the entire product and each part of the product based on the test result, the measurement result, and the like. In this embodiment, the manufacturing result information 400 is stored in the model DB 12 in this manner in association with the product design information (that is, the product model, the mold model, the machining model). As a result, the model DB1
When referring to the design example saved in 2 above, in addition to design information such as product shape and manufacturing requirements, it is possible to know the measurement results and evaluation of the actually manufactured product based on this design information. It can be used as a criterion for making a reference when referring to the example.

As described above, in this embodiment, the product design, the die (rough shaped material) design, and the machining process design are based on the three-dimensional solid model, respectively.
0, the mold model 200, and the machining model 300 are edited, and the consistency between these models is managed by the design / manufacturing data management unit 10.
It is possible to proceed with mold (coarse material) design and machining process design almost in parallel.

Further, in this embodiment, for each product type defined by a combination of main specifications, etc., a standard design / manufacturing requirement is prepared as a database for that type, so that the design / manufacturing at the time of design Requirements are available. As a result, the efficiency of the design work can be improved, and the quality of the design itself can be improved by registering a standard design / manufacturing requirement that is good in view of past performance.

In particular, in the present embodiment, as a kind of standard design / shape requirement, a solid model of a standard part of a die or a machining part in the product type and an element model including manufacturing requirements (process information) about each part of the model. Prepared. This allows the designer to search for the desired element model and place it in the mold model, machining model, etc.
Designs can be made that include shape and manufacturing information. Regarding the part that adopted the standard element model in the die model and machining model, it can be adopted for design without any consideration of the manufacturability in view of past results, etc., and the design work is greatly streamlined. it can.

Further, in the present embodiment, since the information on the manufacture of each part of the product is registered in association with each component of the solid model, the information from the product design to the production technology (manufacturing) is unified. To be done. Therefore, the designer can easily access various kinds of information not only when designing the product or considering the production technology but also when referring to past design examples later.

Further, in the present embodiment, the measurement result and evaluation of each part in the manufacturing result of the product are stored as manufacturing result information in association with each part of the designed product model, mold model, and machining model. Since it is possible to refer to it, it can be used as a judgment material when referring to the design in later product development. Since the manufacturing result information is stored in association with the model constituent element of the corresponding part such as the product model, it is possible to select the necessary part on the display of the solid model and display the manufacturing result information of the part.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a flow of design / manufacturing work using a design support system according to the present invention.

FIG. 2 is a functional block diagram showing an outline of a design support system according to the present invention.

FIG. 3 is registered in a model DB (database),
It is a figure for demonstrating the structure of the information group regarding one product.

FIG. 4 is a diagram showing a schematic configuration of a mold model.

FIG. 5 is a diagram showing an example of a processed portion.

FIG. 6 is a diagram showing data contents of a model representing a processed portion.

[Explanation of symbols]

10 design / manufacturing data management section, 12 model DB (database), 14 standard information DB, 16 type requirement information section, 18 machining requirement information section, 20 design support device, 30
Manufacturing result input device.

Claims (7)

[Claims] 1. A product model representing a product, a mold model representing a mold for forming a rough material of the product, and a machining model representing a machining portion which is a portion removed from the crude material by machining. A model including a three-dimensional solid model representing each shape of the product, the mold, and the processed part and manufacturing requirement attribute information associated with each component of the solid model is generated, and the product model and the model model are generated. ,
Model management means for managing machining models in association with each other, information of the product model, the model model, and the machining model managed by the model management means is displayed in accordance with a user's display instruction, and each of them is displayed. User interface means for receiving an operation instruction for the model, wherein the model management means mutually synchronizes the product model, the die model, and the machining model in accordance with the operation instruction received by the user interface means. Design support system that updates while maintaining the property. 2. The design support system according to claim 1, wherein, for each predetermined product classification, standard information in which the design / manufacturing requirements of a mold and the design / manufacturing requirements of a machining part as a standard in the product classification are registered. The database and the specification of the search condition from the user are accepted, the product classification corresponding to the search condition is obtained, and the standard mold design / manufacturing requirement and the processed part design / manufacturing requirement in the obtained product classification are searched from the standard information database. A design support system including: a search means for presenting to a user. 3. The design support system according to claim 2, wherein the standard information database stores the product classification as one of the standard mold design / manufacturing requirements and machining part design / manufacturing requirements in the product classification. A solid model of what is defined as a standard part among the mold component and the machining part, and an element model including standard manufacturing attribute information associated with the component of the solid model are registered, and the model management means is A function of updating the mold model or the machining model by arranging the element model searched by the searching means at a location designated by the user in the mold model or the machining model. Support system. 4. The design support system according to claim 1, wherein the model management unit expresses the product model based on a combination of the mold model and the machining model. system. 5. The design support system according to claim 1, wherein the user interface unit operates an operation unit for operating the die model, an operation unit for operating the machining model, and an operation of the product model. A design support system characterized in that each of the operation means is capable of displaying, as a reference model, a basic skeleton model indicating position information of a main part of the product. 6. The design support system according to claim 1, wherein the model management means, for each component of the product model, the mold model, and the machining model, produces a predetermined manufacturing result for the component. A design support system characterized in that information can be associated and registered. 7. The design support system according to claim 1, wherein a set of a product model, a mold model, and a machining model for one product managed by the model management means is a set of main specification values of the product. A design support system characterized in that at least one of a combination and identification information of the product can be searched.