JP2007249768A - Three-dimensional model generator for catalog order product and three-dimensional model generation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a three-dimensional product CAD model of a catalog order product in which product specifications are almost stable is quickly constructed. <P>SOLUTION: A three-dimensional CAD model editor for the catalog order product comprises: a similar product model retrieval processing part for retrieving a similar product model from an existing catalog order product model according to product specifications instruction of the catalog order product and giving an editing instruction to make the similar product model a catalog order product following the product specifications instruction; a product model assembly editing processing part which collates standard parts information by following instruction for fetching and editing the similar product model to the three-dimensional CAD system, gives an assembly editing processing instruction, and creates a target catalog order product three-dimensional model; and a product model storage processing part for storing and processing the catalog order product three-dimensional model created by the product model assembly editing processing part as product model information for reuse. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a three-dimensional model generation apparatus for catalog order products whose product specifications are substantially established, and a three-dimensional model generation method using the model generation apparatus.

  When creating a product model using 3D CAD for a catalog order product that consists of multiple parts and the product specifications are fixed to some extent, a 3D model of the target catalog order product may be created by diverting the designed product model. is there. In the diversion design by three-dimensional CAD, after searching for a part that can be diverted to a new product in the past, an operation of taking the part on the three-dimensional CAD and constraining the part occurs. A method for supporting such diversion design and arranging parts is described in Patent Document 1.

Japanese Patent Laid-Open No. 9-179892

  In the method described in Patent Document 1, a standard part including constraint information for performing part placement is created, and the part placement using the restraint information on the three-dimensional CAD is the method, and the part is registered in advance as the standard part. In addition, it is necessary to set the constraint condition of the arranged parts so that the parts are arranged at arbitrary positions. On the other hand, in the catalog order product where the product specifications are almost established, it is necessary to prepare the standard parts used in the catalog order product in advance, but the constraint conditions of the arranged parts are almost established, and each time Restriction condition instructions may be a burden on the designer.

  The present invention has been made to solve such problems of the prior art, and provides a system for rapidly building a three-dimensional product CAD model of a catalog order product whose product specifications are almost established. .

  The catalog order product three-dimensional model generation device of the present invention has a display device, an input device, an arithmetic processing device, a work data memory, a catalog order product model storage device, and a three-dimensional CAD system. In the three-dimensional CAD model generation apparatus, a three-dimensional CAD system and a catalog order product three-dimensional CAD model editing apparatus are arranged in the arithmetic processing unit, and the catalog order product three-dimensional CAD model editing apparatus is a catalog order product Similar product model search processing for searching and extracting one similar product model from an existing catalog order product model according to the product specification instruction and generating edit instruction information for making the catalog order product of the product specification instruction from the similar product model And the assembly editing process according to the editing instruction information. A product model assembly edit processing unit that creates a three-dimensional catalog order product to be instructed, and a product that performs storage processing for reuse of the catalog order product three-dimensional model created by the product model assembly edit processing unit It is characterized by comprising a model storage processing unit and a display device.

  The catalog order product three-dimensional model generation apparatus further includes a product model storage processing unit that performs storage processing for reusing the catalog order product three-dimensional model created by the product model assembly editing processing unit. And

  Further, in the 3D model generation apparatus for catalog order products, the product model storage processing unit compares the catalog order product 3D model already stored with respect to the catalog order product 3D model and analogizes the catalog order product 3D model. In the case of being stored, the storage processing is not performed.

  The catalog order product three-dimensional model generation apparatus of the present invention can efficiently construct a three-dimensional product CAD model of a target catalog order product in designing a catalog order product whose product specifications are almost established. . Further, by organizing and storing the created catalog order product, it can be reused as a similar product model, and more efficiently provide the construction of a three-dimensional product CAD model of the catalog order product.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing an embodiment of a configuration of a catalog order product three-dimensional model generation apparatus 100 according to the present invention.

  In FIG. 1, a catalog order product three-dimensional model generation apparatus 100 for designing a three-dimensional product of a catalog order product whose product specifications are substantially established includes a three-dimensional CAD system 4 and a catalog order product three-dimensional. A CAD model editing device 7 is combined. Further, the catalog order product three-dimensional model generation apparatus 100 is configured to include standard part models of catalog order products connected to these combinations, configurations and arrangements of already designed catalog order product models and catalog order product models, and part dimension information. A storage device 6 for storing the catalog order product model for managing the catalog order product model information for managing, etc., a display device 1 for displaying the result of the 3D product model edited by the catalog order product 3D model editing device 7, An input device 2 for instructing the catalog order product 3D model editing device 7 to input the product specifications of the target catalog order product, and a work data memory 5 used in the processing of the catalog order product 3D CAD model editing device 7 It has.

  The three-dimensional CAD part data configuration editing device 7 takes in the product specifications of the target catalog order product, that is, the component configuration and arrangement, and also the dimensional information of the parts, and stores them in the catalog order product model storage storage device 6. Search for and extract one similar product model that is closest to the target catalog order product from the catalog order product model information, and then use the similar product model name as the editing instruction information to make the target catalog order product from the similar product model. The similar product model search processing unit 7-1 to be output to the work data memory 5 together with the similar product model name and editing instruction information output by the similar product model search processing unit 7-1, and the target catalog Instructs the 3D CAD system 4 to edit the assembly of the 3D model of the ordered product, and orders the catalog. A product model assembly editing processing unit 7-2 for generating a product three-dimensional model and a catalog order product three-dimensional model created by the product model assembly editing processing unit 7-2 are stored as product model information for reuse. For this purpose, the edit instruction information for instructing to edit the similar product model output by the similar product model search processing unit 7-1 is taken, and the product model that performs the registration process to the catalog order product model storage recording device 6 is evaluated. The storage processing unit 7-3 is configured.

  FIG. 2 shows a data flow for performing a three-dimensional product design of a catalog order product in which a product specification, which is a usage form of the catalog order product three-dimensional CAD model generation apparatus, is substantially established. First, in the similar product model search processing unit 7-1, the component configuration / arrangement / part dimension instruction 2a which is the product specification of the target catalog order product is read, and the component configuration / arrangement / part is stored in the work data memory 5. Save as dimension instruction 5a, extract similar product model from already created stored catalog order product information 6a, similar product model name, product specification of target catalog order product and product of similar product model By comparing, the difference between the two is calculated, and the component configuration / placement / part dimension instruction difference information 5b as the product specification instruction difference is output. Next, in the product model assembly editing processing section 7-2, the similar product model name and the part configuration / placement / part dimension instruction difference information 5b as the product specification instruction difference, and the already created catalog order product three-dimensional model The similar product model is taken in from 6b and the standard part is taken in from the standard part 3D model 6c, the assembly editing process of the target catalog order product is instructed to the 3D CAD system 4, and the catalog order product 3 after editing The dimension model 6d is output. Standard part information corresponding to the above-mentioned product specification instruction difference, that is, closest to the product specification instruction difference is selected, that is, searched, the searched standard part information is adopted, and a catalog order product three-dimensional model 6d is generated. To do.

  Finally, in the product model storage processing unit 7-3, the part configuration / arrangement / part dimension instruction 5a which is a product specification instruction and a similar product model name and part configuration / arrangement / part dimension instruction difference information which is a product specification difference instruction After reading 5b and evaluating whether or not it can be stored, the component configuration / arrangement / part dimension instruction 5a is stored in the product model information 6a, and the edited catalog order product three-dimensional model 6d is stored in the product model 6b. This product model storage processing unit 7-3 is for excluding product models that are similar to already registered product models in order to effectively use the resources in the storage area of the catalog order product model storage device 6. Process. Here, FIGS. 9 to 11 show examples of standard parts and product models of catalog order products to which the present apparatus is applied, and applied product models created by applying the present apparatus. FIG. 9 corresponds to a standard part three-dimensional model 6c of a catalog order product applied in the present apparatus. FIG. 10 corresponds to the product three-dimensional model 6b that has already been applied to the product and stored for reuse. Finally, FIG. 11 corresponds to the catalog order product three-dimensional model 6d after editing the catalog order product to which the present apparatus is applied.

  FIG. 3 is a flowchart showing the processing procedure of the similar product model search processing unit 7-1 of the catalog order product three-dimensional CAD model editing apparatus 7 according to the present embodiment, and FIG. 4 shows the product model assembly editing processing unit 7-2. FIG. 5 is a flowchart showing the processing procedure of the product model storage processing unit 7-3. This will be described with reference to FIGS.

In FIG. 3, the product specification of the catalog order product that is the target in the process using the similar product model search processing unit 7-1 is shown first. The component configuration and arrangement, as well as the dimension information of the component are taken in (S1-1). Here, an example of the product specification of the target catalog order product is shown in FIG. Next, a loop process for creating a similar product model list from the product model information 6a in the catalog order product model storage device 6 is performed (S1-2). In the product model information loop process (S1-2), first, one piece of product model information is sequentially obtained from the product model information 6a (S1-3). Next, the obtained product model information and the product model information of the target product specification are compared to calculate an evaluation value, and a similar product model list is created (S1-4). Here, FIG. 7 shows an example of a similar product model list. The similar product model list includes a product model name and an evaluation value. When searching for similar product models, it is best to be able to select the product model that has the least modified part configuration, and reducing the addition of parts and deleting excess parts reduces product model construction time. I can do it. Here, an evaluation value is provided for each product model so that the best similar product model can be selected. An example of the evaluation calculation method in this case is
Evaluation value = {number of parts configured with the same product specifications as the target} × 10000
-{Number of parts other than the target product specifications} × 10000
+ {Number of identical arrangement positions} × 100
+ {Number of identical dimension values}
The replacement process is performed with a product model having a larger evaluation value than the evaluation value held last time. When the product model information loop processing (S1-2) ends, the similar product model name that is most similar to the similar product model list is stored. Next, edit difference information with the similar product model for determining and building a target catalog order product model from the similar product model, that is, similar product model name, part configuration / arrangement / part dimension indication difference information (5b). Create (S1-5). Here, FIG. 8 shows an example of the edit difference information. The similar product model name is output at the top, and additional information, deletion information, component arrangement change information, and component dimension change information are output in the second and subsequent lines.

  Next, the process proceeds to the processing step of the product model assembly editing processing unit 7-2 in FIG. In FIG. 4, first, the similar product model name output by the similar product model search processing unit 7-1 and the part configuration / placement / part dimension instruction difference information (5b) which is the product specification instruction difference are taken in (S2- 1). Next, the model of the product model name indicated by the imported similar product model name and the part configuration / placement / part dimension instruction difference information (5b) which is the product specification instruction difference is three-dimensional from the standard part information (6c). A reading instruction is given to the CAD system 4 (S2-2). Next, a loop process of the creation instruction information of the similar product model name and the part configuration / placement / part dimension instruction difference information (5b) which is a product use difference is performed (S2-3). In the creation instruction information loop process (S2-3), if the creation instruction information is part deletion, the part deletion instruction is given by the determination process (S2-4) (S2-5). In the part deletion instruction (S2-5), a part deletion instruction is issued to the three-dimensional CAD system 4. When the component deletion instruction (S2-5) ends, the process proceeds to the next processing loop.

  Next, when the creation instruction information is component addition, a component reading instruction is given (S2-7) by the determination process (S2-6). In the part reading instruction (S2-7), the three-dimensional CAD system 4 is instructed to read the instruction part most corresponding to the instruction difference from the standard part (6c). When the component reading instruction (S2-7) ends, the process proceeds to the next process determination.

  Next, when the creation instruction information is a part placement change, a part placement change instruction is given by a determination process (S2-8) (S2-9). In the part placement change instruction (S2-9), the instruction part placement change instruction is given to the three-dimensional CAD system 4. When the component placement change instruction (S2-7) ends, the process proceeds to the next process determination.

  In the last creation instruction information loop process (S2-3), if the creation instruction information is a part dimension change, the part dimension change instruction is issued by the determination process (S2-10) (S2-11). In the part dimension change instruction (S2-11), an instruction part dimension change instruction is issued to the three-dimensional CAD system 4. In the above-described creation instruction information loop process (S2-3), a 3D CAD model of the target catalog order product is created on the 3D CAD system 4, and finally the 3D CAD model of the catalog order product is output. (S2-12), and the process is terminated.

Finally, the process proceeds to the processing step of the product model storage processing unit 7-3 in FIG. First, edit difference information, that is, similarity between a part configuration / arrangement / part dimension instruction 5a that is a product specification of a target catalog order product model and a similar product model for constructing the target catalog order product model. The part configuration / placement / part dimension instruction difference information (5b), which is the product model name and product specification instruction difference, is read (S3-1). Next, it is judged and evaluated whether or not storage registration is possible for reusing the three-dimensional model for the catalog order product created this time (S3-2). An example of the calculation method of the storage registration permission evaluation value here can be obtained by the following calculation formula.
Evaluation value of product model registration availability =
{{{Total number of added parts} + {total number of deleted parts} − {total number of identical parts}} − {total number of parts}}
÷ {Total number of parts}

  Next, a product model and information are registered by a product model registration determination process (S3-3) (S3-4). Here, one determination method of the product model registration determination process (S3-3) uses a positive value or a predetermined threshold value or more as the determination formula. In the product model registration determination process (S3-3), the created product model and the product model information, that is, the component configuration / arrangement / part dimension instruction (5a) are stored in the catalog order product model storage storage device 6.

The block diagram which shows the three-dimensional model production | generation apparatus of the catalog order product which becomes the form of this invention. The data flow figure of the utilization form of the three-dimensional model production | generation apparatus of the catalog order product used by this invention. The flowchart figure of the process sequence which performs a product model search process. The flowchart figure of the process sequence which performs a product model assembly edit process. The flowchart figure of the process sequence which performs a product model storage process. The figure which shows the structural example of the product specification information of the catalog order product used as object. The figure which shows the structural example of a similar product model list. The figure which shows the structural example of similar product model name, component structure, arrangement | positioning, and dimension instruction | indication difference information. The figure which shows the example of the standard component used as object. The figure which shows the example of the product model used as object. The figure which shows the example of the applicable product model of the catalog order product to which this apparatus is applied.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Display apparatus, 2 ... Input device, 3 ... Arithmetic processing device, 4 ... 3D CAD system, 5 ... Work data memory, 6 ... Catalog order product model storage device, 7 ... Catalog order product 3D CAD model Editing device, 100 ... 3D model generation device for catalog order products.

Claims (3)

  A catalog order product three-dimensional CAD model generation apparatus having a three-dimensional CAD system, comprising: an arithmetic processing unit in which the three-dimensional CAD system and a catalog order product three-dimensional CAD model editing apparatus are arranged; The 3D CAD model editing device searches for one similar product model from the stored existing catalog order product model in accordance with the product specification instruction of the catalog order product, extracts the product specification of the similar product model, and A similar product model search processing unit for generating edit instruction information indicating a difference between product specifications and a product specification of a similar model, and a standard corresponding to the edit instruction information by referring to standard part information according to the edit instruction information Search for part information, and use the standard part information to issue assembly edit processing instructions. A display unit for displaying a catalog order product three-dimensional model edited by the catalog order product three-dimensional CAD model editing device. A three-dimensional model generation device for catalog order products, characterized by comprising:   The three-dimensional catalog order product according to claim 1, further comprising a product model storage processing unit that performs storage processing for reusing the catalog order product three-dimensional model created by the product model assembly editing processing unit. Model generator.   3. The product model storage processing unit according to claim 2, wherein the product model storage processing unit does not perform storage processing when the catalog order product three-dimensional model is compared and compared with the catalog order product three-dimensional model already stored. A three-dimensional model generation device for catalog order products, characterized in that it is configured as follows.

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