JP2008176425A - Catalog preparation system, parts catalog preparation method, program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically prepare a parts catalog by comparing three-dimensional model data before and after design change, and automatically specifying a design change section, and adding information showing that the design of the parts has been changed to the parts in order to display only parts whose design has been changed. <P>SOLUTION: This catalog preparation system is provided with: the simplex image of each of parts configuring a three-dimensional model from three-dimensional data and an assembly figure where only the parts are displayed so as to be highlighted in such a state that all the parts are assembled; an attribute information output part 25 for calculating and outputting the boundary information of the position, height and width of the illustrations of each of the parts in the assembly figure from the three-dimensional data; and a parts catalog generation part 26 for generating a parts catalog 27 by compounding the respective output with parts configuration information 22. This catalog preparation system is configured to compare the three-dimensional model data before and after design change, and to recognize the changed parts. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a parts catalog creation system, a parts catalog creation method, a program, and a recording medium.

  Conventionally, in a creation system that creates a parts catalog from 3D model data, even if the 3D model data has been modified due to a design change, etc., only the 3D model data after the design change is used to create a parts catalog. Was. Patent Document 1 discloses a technique for extracting part information from three-dimensional model part data.

JP-A-6-176085

  However, in the conventional technology as described above, the worker who browsed the old parts catalog wants to see the part where the design has been changed. There was a problem that the production cost increased because it was necessary to manually add comments. In such a parts catalog creation system, by comparing the three-dimensional model data before and after the design change, if the design change part can be automatically recognized and only the part can be displayed, the production cost can be reduced. Moreover, the technique of the above-mentioned patent document 1 does not describe anything related to parts catalog creation or alternative images.

  The present invention has been made in view of the above, and in order to display only parts that have undergone a design change, the three-dimensional model data before and after the design change is compared, the design change part is automatically identified, By adding information indicating that the design has been changed to the part, only the design change part can be displayed. An object of the present invention is to provide a system for automatically creating such a parts catalog.

  In order to solve the above-described problems and achieve the object, the invention according to claim 1 is based on a single image of each part constituting a three-dimensional model from three-dimensional model data and only the corresponding part in a state where all parts are assembled. Image generation means for creating an assembly drawing with highlighting, and attribute information output means for calculating and outputting boundary information such as position, height, and width in the assembly drawing of each part illustration from the three-dimensional model data Part catalog generation means for generating a part catalog by combining the output of the image generation means and the attribute information output means and part configuration information, and comparing the three-dimensional model data before and after the design change. It is characterized by being able to recognize the parts that were present.

  Further, in the invention according to claim 2, the parts catalog generating means generates a parts catalog generated from the three-dimensional model data after the design change, and adds information indicating that the parts are newly added to the newly added parts. It is characterized by that.

  Further, in the invention according to claim 3, the parts catalog generation means generates a parts catalog generated from the three-dimensional model data after the design change, extracts the deleted parts from the three-dimensional model data before the design change, and designs Information indicating that the part has been added to and deleted from the changed parts catalog is added.

  Further, the invention according to claim 4 is characterized in that the parts catalog generation means generates a parts catalog generated from the three-dimensional model data after the design change, and adds the changed content to the changed part.

  The invention according to claim 5 is an image for creating a single image of each part constituting the 3D model from the 3D model data and an assembly drawing in which only the relevant part is highlighted in a state where all the parts are assembled. A generation step, an attribute information output step for calculating and outputting boundary information such as a position, height, and width in an assembly drawing of each part illustration from the three-dimensional model data, and the image generation step and the attribute information output step. A part catalog generation process that synthesizes the output and part configuration information to generate a parts catalog, and compares the 3D model data before and after the design change and can recognize the changed part To do.

  In the invention according to claim 6, in the parts catalog generation step, a parts catalog generated based on the three-dimensional model data after the design change is generated, and information indicating that the parts are newly added is added to the newly added parts. It is characterized by that.

  Further, in the invention according to claim 7, in the parts catalog generation step, a parts catalog generated from the three-dimensional model data after the design change is generated, and the deleted parts are extracted from the three-dimensional model data before the design change. Information indicating that the part has been added to and deleted from the changed parts catalog is added.

  The invention according to claim 8 is characterized in that, in the part catalog generation step, a part catalog generated based on the three-dimensional model data after the design change is generated, and the changed content is added to the changed part.

  The invention according to claim 9 is characterized by causing a computer to realize the parts catalog creation method according to any one of claims 5 to 8.

  The invention according to claim 10 is a computer-readable recording medium in which the program according to claim 9 is recorded.

  The parts catalog creation system according to the present invention (Claim 1) has an effect of recognizing a design change part and generating a parts catalog in which information indicating that the part is a change part is added to the part of the change part.

  In addition, the parts catalog creation system according to the present invention (claim 2) produces an effect that a parts catalog to which information indicating that a part is newly added is added to a newly added part can be generated.

  Further, the parts catalog creation system according to the present invention (claim 3) has an effect that it is possible to generate a parts catalog that incorporates deleted parts information that has not been displayed in the past.

  In addition, the parts catalog creation system according to the present invention (Claim 4) produces an effect that a parts catalog to which information indicating what kind of changes have been made to the parts of the changed part can be generated.

  In addition, the parts catalog creation method according to the present invention (Claim 5) has the effect of recognizing a design change part and generating a part catalog in which information indicating that the part is a change part is added to the part of the change part. .

  In addition, the parts catalog creation method according to the present invention (claim 6) produces an effect that a parts catalog to which information indicating that a part is newly added is added to a newly added part can be generated.

  Also, the parts catalog creation method according to the present invention (claim 7) has an effect that it is possible to generate a parts catalog that incorporates deleted parts information that has not been displayed conventionally.

  In addition, the parts catalog creation method according to the present invention (Claim 8) has an effect that a parts catalog to which information indicating what kind of change has been made in the part of the changed part can be generated.

  Moreover, the program concerning this invention (Claim 9) has an effect that the computer can implement | achieve the parts catalog preparation method as described in any one of Claims 5-8.

  According to a tenth aspect of the present invention, there is provided a recording medium according to any one of the fifth to eighth aspects, wherein the program according to the ninth aspect is recorded on a computer-readable recording medium. There is an effect that the creation method can be realized.

  Exemplary embodiments of a parts catalog creation system, a parts catalog creation method, a program, and a recording medium according to the present invention will be explained below in detail with reference to the accompanying drawings.

(Embodiment)
FIG. 1 is a block diagram showing a hardware configuration to which a parts catalog creation system according to an embodiment of the present invention is applied. In FIG. 1, a parts catalog creation system includes a CPU 1 that operates according to a program, a memory (eg, ROM, RAM, etc.) 2 that temporarily stores the program and various data, and an external storage device that stores the program and various data. (For example, a hard disk device) 3, an input device 4 for inputting various data including 3D shape data and instructions including a keyboard, a mouse, etc., a display device 5 for displaying a 3D shape model, etc. Are connected by a bus 6.

  FIG. 2 shows an example of an image of a search display screen in the parts catalog creation system according to the embodiment of the present invention. FIG. 2-1 is a search screen, and FIGS. 2-2 and 2-3 are screens showing an assembly diagram of parts hit in the search. In these drawings, reference numeral 10 is a search screen, reference numeral 11 is a unit name, reference numeral 12 is a search keyword list, reference numeral 13 is a search button, reference numeral 14 is a list of selected parts, and reference numerals 15, 16, and 17 are left and right arrow buttons.

  In the search screen 10, first, a search keyword is input. The keywords often used for the part names such as “cover” and “gear” are in the search keyword list 12 and may be selected from here. When the search button 13 is pressed after the input, the names of the parts hit in the search are listed (see the selected parts list 14). When you place the mouse cursor on a part name, a single view of that part is displayed on the right side. There is (number) next to the name of the part hit in the search, and this indicates the number when there are a plurality of identical parts such as screws. When there is not, it becomes (1).

  Clicking on the name of a part that hits the search displays the assembly diagram shown in Fig. 2-2. In the assembly drawing, the parts that hit the search are highlighted with shading and red lines, and the other parts are displayed with translucency. Here, the image can be enlarged or reduced by moving the mouse wheel up and down, and the enlarged display can be performed as shown in FIG. Moreover, the assembly drawing can be rotated 90 degrees and displayed and viewed by the lower left and right arrow buttons 17. Here, it is also possible to perform other processing such as ordering by clicking the corresponding part in the image.

  In FIG. 2A, when a keyword is selected and the search button 13 is pressed, a part name is listed in the selected parts list 14. When the part name is clicked, the part assembling screen (FIG. 2-2 or FIG. 2-3) is launched. When the mouse cursor is placed on the character on the part surface, a single image of the corresponding part is displayed. If there are multiple parts single images, use the left and right arrow buttons to switch images.

  Also, in FIGS. 2-2 and 2-3, when the mouse wheel is turned on the image, the zoom-in / zoom-out operation can be performed. The viewpoint can be moved by moving the mouse while pressing the mouse wheel. Further, the viewpoint can be switched by the left and right arrow buttons 16 and 17.

  FIG. 3 is a block diagram showing a functional configuration of the parts catalog creation system according to the embodiment of the present invention. The present invention includes an image generation unit 24 that creates a single image of each part constituting a 3D model from 3D model data, and an assembly drawing that highlights only the relevant part in a state where all parts are assembled, Attribute information output unit 25 that calculates and outputs boundary information such as position, height, and width in the assembly drawing of each part illustration from the original model data, output of image generation unit 24 and attribute information output unit 25, and part configuration information A part catalog generation unit 26 that synthesizes 22 and generates a parts catalog 27, and compares the three-dimensional model data 20 before the design change with the three-dimensional model data 21 after the design change so that the changed part can be recognized. It is.

  Each of the above-described processing units is realized by configuring the function of the parts catalog creation system by a program and executing the program using hardware including the CPU 1, the memory 2, the input device 4, the display device 5, and the like. Each storage unit is realized using the memory 2 or the external storage device 3.

  Each three-dimensional model data records the shape, size, name, and assembly state of each part. The parts configuration information 22 is a record of the configuration of each part. For example, in the case of a printer, a certain part group, such as an exterior unit, a paper feeding unit, and a writing unit, is used as a unit, and one unit is configured by combining the units. Information and information necessary for managing each part, for example, part name, unit name, part number, size, assembly state, and the like are recorded.

  Next, an operation example of the parts catalog creation system using the three-dimensional model data in the configuration described above will be described with reference to the flowchart shown in FIG. As shown in FIG. 4, first, the three-dimensional model data comparison unit 23 analyzes the three-dimensional model data 20 before design change and the three-dimensional model data 21 after design change, and generates difference data on the memory 2 (step S11). Subsequently, the image generation unit 24 analyzes the three-dimensional model data, and creates a single image and an assembly drawing for each part (step S12). Subsequently, the attribute information extraction unit 25 creates the boundary information of the parts in the assembly drawing (step S13). Subsequently, the parts catalog generation unit 26 extracts a part name from the single image, assembly drawing, boundary information, and part configuration information 22 to create a keyword, and generates a parts catalog by combining these data (step S14).

  The above process will be further described. In step S11 of FIG. 4, the three-dimensional model data comparison unit 23 compares the three-dimensional model data 20 before the design change with the three-dimensional model data 21 after the design change, and the difference portion is stored in the memory 2 as difference data. accumulate. Usually, a unique ID, so-called part number, is assigned to each part, and can be easily recognized by comparing them. Differences are mainly divided into three types: newly added parts, deleted parts, and changed parts. The newly added part is a newly added part, and a character indicating that it is newly added to the comment of the part is displayed in the generated parts catalog. The deleted parts are deleted parts, and the deleted parts can be viewed as a deleted parts list in the generated parts catalog. The changed part is a part whose content has been changed, and the changed content can be the part name, position, shape, etc., but in the generated parts catalog, which part is analyzed by analyzing the difference in the part comment Characters indicating whether there has been such a change are displayed.

  In step S12, the image generation unit 24 analyzes the post-design change three-dimensional model data 21, and creates a part single image, a part assembly drawing, and a part assembly expansion for each part. Specific examples of these images are shown in FIG. First, FIG. 5A is an image diagram of the entire part. FIG. 5B is a part single image. An image of a single part is enlarged and displayed as much as possible. In the case of a part lacking 3D model data, an alternative image can be used. By using an actual part taken as a photograph as an alternative image, it is possible to express the part shape even for a part lacking 3D model data.

  FIG. 5-3 is a part assembly diagram. Only the relevant part is highlighted with shading and a red wire frame, and the other parts are rendered translucent, so the assembly position of the relevant part becomes clear. 5-3 and the subsequent figures are views of FIG. 5-3 seen from different angles. In this way, by creating images from various angles as images in advance, the display speed at the time of browsing can be improved. On the other hand, if it is desired to browse in more detail, an image from a specified angle can be drawn and displayed each time a user requests without creating an image in advance, but the display speed is slow.

  FIG. 5-5 is a part assembly diagram similar to FIG. 5-3, and an enlarged view of the parts assembly is an enlarged view of parts assembly of FIG. 5-6. This is not simply an enlarged part, but the center position of the viewpoint gradually moves from the center of the entire part to the center of the corresponding part. Thereby, the uncomfortable feeling due to the change of the viewpoint position when enlarged is reduced.

  The part assembly diagram of FIG. 5-7 is an image in which the corresponding parts are displayed by being drawn with a wire frame instead of a translucent display. FIG. 5-8 is an enlarged view of parts assembly when there are parts of the same shape. In this case, the enlarged display is performed so that all parts having the same shape are accommodated. It is also possible to enlarge and display only each part. In addition, the difference data is analyzed, and the deleted part is extracted from the three-dimensional model data before the design change, and only a single image is generated.

  In step S13, the attribute information output unit 25 creates and outputs the boundary information of the parts in the part assembly diagram created in step S12. This boundary information is used by the parts catalog display client. For example, when the user specifies an arbitrary point in the assembly drawing, the boundary information of all parts is searched, and the parts including that point are listed. It can be used for the purpose of

  FIG. 6 shows a method for acquiring boundary information. FIG. 6A is a diagram illustrating a so-called bounding box, which is the smallest cuboid in which all corresponding parts can be accommodated. FIG. 6B illustrates the smallest rectangle that can accommodate all the bounding boxes in two dimensions. When the boundary information in two dimensions is obtained only by calculation, it becomes the range of this rectangle. FIG. 6-3 is a part assembly diagram depicting only the relevant part. The blue line rectangle shows the boundary information of the corresponding part obtained by examining the inside of the image one dot at a time.

  FIG. 6-4 shows the error of the boundary information obtained in FIGS. 6-2 and 6-3. As shown in this figure, as shown in FIG. 6-3, drawing only the relevant part and obtaining the boundary information can be selected more visually by a parts catalog display client or the like. In addition, a part lacking 3D model data is calculated in the same manner using the given boundary information. Also, no boundary information is generated for deleted parts.

  In step S14, the parts catalog generation unit 26 extracts a part name from the image generated by the image generation unit 24, the boundary information generated by the attribute information output unit 25, the part configuration information, and the difference data, and creates keywords. A parts catalog is generated by combining the data of

  The finally extracted information is shown in FIG. The difference information is at step S11, the part single image, the part assembly drawing, and the part assembly enlarged view are at step S12, and the boundary information is as described at step S13. The part name is data extracted from the part configuration information and is the name of each part. The part number is data extracted from the part configuration information, and is a number assigned to each part. However, not all numbers are included, and symbols may be included as necessary. Parts having the same shape have the same part number. The unit name is data extracted from the part configuration information and is the name of a set of parts. A set of one or more parts is called a unit. The difference information is data extracted by the 3D model data comparison unit and is displayed as a comment.

  By the way, the present invention is not limited to the embodiments described above. Each function constituting the parts catalog creation system of the above-described embodiment is programmed and written in a recording medium in advance, and these programs recorded in the recording medium are stored in a memory or a storage device provided in the computer. Needless to say, the object of the present invention is achieved by executing the program. In this case, the program itself read from the recording medium realizes the functions of the above-described embodiment, and the program and the recording medium on which the program is recorded also constitute the present invention.

  In addition, the program includes a case where the functions of the above-described embodiment are realized by processing in cooperation with an operating system or another application program based on an instruction of the program.

  Note that a program that realizes the functions of the above-described embodiments includes a disk system (for example, a magnetic disk, an optical disk, etc.), a card system (for example, a memory card, an optical card, etc.), and a semiconductor memory system (for example, a ROM, a nonvolatile memory). The recording medium may be provided in any form such as a memory or the like, or a tape system (for example, a magnetic tape, a cassette tape, or the like). Alternatively, the program stored in the storage device may be directly supplied from the server computer via the network. In this case, the storage device of this server computer is also included in the recording medium of the present invention.

  As described above, by programming and distributing the functions of the above-described embodiment, the cost can be reduced, and the portability and versatility can be improved.

  As described above, according to this embodiment, even when there is a design change, a parts catalog can be generated at a low cost. In particular, it is possible to recognize a design change part and generate a parts catalog in which information indicating that the part is a change part is added to the part of the change part. In addition, it is possible to generate a parts catalog in which information indicating that a part is newly added is added to the newly added part. In addition, it is possible to generate a parts catalog that incorporates deleted parts information that has not been displayed. In addition, it is possible to generate a parts catalog to which information indicating what kind of changes have been made to the parts in the changed part.

  As described above, the parts catalog creation system, the parts catalog creation method, the program, and the recording medium according to the present invention are useful for managing and browsing the design change status of parts, and in particular, from each of the three-dimensional model data. It is suitable for a technology that creates images of parts, general drawings, and assembly drawings, and automatically creates a parts catalog using these images.

It is a block diagram which shows the structure of the hardware to which the parts catalog creation system concerning embodiment of this invention is applied. It is explanatory drawing which shows the example of a search display screen in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing (1) which displays a part name and a part number from the search display screen of FIGS. It is explanatory drawing (2) which displays the part name and part number from the search display screen of FIGS. It is a block diagram which shows the function structure of the parts catalog creation system concerning embodiment of this invention. It is a flowchart which shows operation | movement of the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the example of the whole parts in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the example of a single part in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the parts assembly figure example (1) in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the part assembly figure example (2) in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the example of whole display of the parts assembly figure in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the example of an enlarged display of the parts assembly drawing in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the example of a wire display of the parts assembly figure in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the example of an expansion display in multiple parts of the parts assembly drawing in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the example of a display of the three-dimensional bounding box in which the applicable part fits in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the example of a display of the two-dimensional bounding box in which the applicable part fits in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the example of a display of the boundary information of the applicable part in the parts catalog creation system concerning embodiment of this invention. It is explanatory drawing which shows the example which filled in the error of the boundary information obtained by FIGS. 6-2 and 6-3. It is a chart which shows the extraction information in the parts catalog creation system concerning embodiment of this invention.

Explanation of symbols

1 CPU
2 Memory 3 External Storage Device 4 Input Device 5 Display Device 10 Search Screen 11 Unit Name 12 Search Keyword List 13 Search Button 14 Selected Parts List 20 3D Model Data Before Design Change 21 3D Model Data After Design Change 22 Parts Configuration Information 23 3D model data comparison unit 24 Image generation unit 25 Attribute information output unit 26 Parts catalog generation unit

Claims (10)

Image generating means for creating a single image of each part constituting the 3D model from the 3D model data and an assembly drawing highlighting only the corresponding part in a state where all the parts are assembled,
Attribute information output means for calculating and outputting boundary information such as position, height, width, etc. in the assembly drawing of each part illustration from the three-dimensional model data;
Parts catalog generation means for generating a parts catalog by combining the output of the image generation means and the attribute information output means and part configuration information;
With
A parts catalog creation system that compares the 3D model data before and after the design change and can recognize the changed parts.   The said parts catalog production | generation means produces | generates the parts catalog produced | generated by the three-dimensional model data after a design change, and adds the information which shows that it is newly added to the newly added parts. Parts catalog creation system.   The parts catalog generation means generates a parts catalog generated from the 3D model data after the design change, extracts the deleted parts from the 3D model data before the design change, adds to the parts catalog after the design change, and deletes it. The part catalog creating system according to claim 1, wherein information indicating that the part is an added part is added.   2. The parts catalog creating system according to claim 1, wherein the parts catalog generating means generates a parts catalog generated based on the three-dimensional model data after the design change, and adds the changed contents to the changed part. An image generation process for creating a single image of each part constituting the 3D model from the 3D model data and an assembly drawing in which only the corresponding part is highlighted in a state where all the parts are assembled,
Attribute information output step for calculating and outputting boundary information such as position, height, width, etc. in the assembly drawing of each part illustration from the three-dimensional model data;
A parts catalog generation step of generating a parts catalog by combining the output of the image generation step and the attribute information output step and the part configuration information;
Including
A part catalog creation method characterized by comparing the 3D model data before and after the design change and recognizing the changed part.   The part catalog generation step generates a part catalog generated based on the three-dimensional model data after the design change, and adds information indicating that the part is newly added to the newly added part. How to create a parts catalog.   The parts catalog generation process generates a parts catalog generated from the 3D model data after the design change, extracts the deleted parts from the 3D model data before the design change, adds it to the parts catalog after the design change, and deletes it 6. The method of creating a parts catalog according to claim 5, further comprising adding information indicating that the part is an ordered part.   6. The part catalog generation method according to claim 5, wherein the part catalog generation step generates a part catalog generated based on the three-dimensional model data after the design change, and adds the changed content to the changed part.   A program for causing a computer to realize the parts catalog creation method according to any one of claims 5 to 8.   A computer-readable recording medium on which the program according to claim 9 is recorded.