JP6308917B2 - Drawing creation support device - Google Patents

Description

  The present invention relates to a support apparatus and a support method for efficiently creating a product drawing to be output when designing a product or a part using a three-dimensional CAD.

  In general, when a product or part is designed using three-dimensional CAD, a product drawing of a part or composite part used in the product is output. In the product drawing, in addition to the title field including the product number and product name, the three-sided view of parts and composite parts viewed in three planes (planar, front, and side), the sectional view showing the cross-section in a specific position and specific direction, and rounding processing There is a case in which an R instruction diagram for specifying a rounding value (R value) is included in the target folding portion. However, these tasks are left to the designer's knowledge and experience, including how to layout them.

  Conventionally, in the design and development of products and molds, the knowledge of advanced designers and design procedures can be accumulated in a form that can be reused, the design flow can be reconfigured in a short period of time, and it can be understood by beginners with little design experience Design support systems that can teach one after another have been proposed.

JP 2005-301336 A

  However, the system of the above-mentioned patent document 1 can only be understood by a beginner with little design experience by using the knowledge and design procedure of a senior designer as a flow or teaching screen, and the beginner designer designs according to the design procedure. However, it is not intended to review and improve the efficiency of design work procedures. Therefore, it is not sufficient for shortening the design time and improving the efficiency of the design work.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a drawing creation support apparatus that can reduce the design time and increase the efficiency of design work by utilizing the knowledge of the designer.

In order to solve the above problems, a drawing creation support apparatus according to the present invention is:
Means for reading three-dimensional shape data of an object model from a database and including a display symbol composed of a plurality of linear and non-linear components ;
Means for reading part information related to the object model from a database;
Means for setting output designation information of a product drawing to be output for the object model;
Means for generating a two-dimensional shape diagram formed by arranging a two-dimensional shape in a specific direction based on output designation information from the read three-dimensional shape data;
Means for outputting a product drawing of an object model based on output designation information from the generated two-dimensional shape diagram and the read parts information;
Each direction of the two-dimensional shape diagram generated based on the output designation information is compared with the direction of the plane generated from the plurality of linear components of the display symbol. Means for identifying a direction that can be seen well ,
Means for generating a display symbol note for the display symbol ;
The main feature is that the generated display symbol annotation is displayed in the vicinity of the output product drawing corresponding to the display symbol displayed in the two-dimensional shape diagram in the specified direction .

A drawing creation support apparatus according to the present invention includes:
As output designation information, a plurality of types of combinations of two-dimensional shapes selected from a plan view, a front view, a side view, and a back view are prepared, and the second feature is that any one type is designated. .

A drawing creation support apparatus according to the present invention includes:
Means for generating a sectional view of a specific cutting position and cutting direction from the read three-dimensional shape data, and the generated sectional view is included in the product drawing of the output object model; Features.

A drawing creation support apparatus according to the present invention includes:
R instruction information for rounding the folding part of the object model, which includes R instruction information displayed in association with an R value associated with a display line indicating the folding part of the two-dimensional shape diagram of the object model. A third feature is that a means for reading the instruction diagram information is provided, and the read R instruction diagram information is included in the product drawing of the output object model.

A drawing creation support apparatus according to the present invention includes:
Means for reading three-dimensional shape data of an object model from a database and including a display symbol including an axis passing through the center ;
Means for reading part information related to the object model from a database;
Means for setting output designation information of a product drawing to be output for the object model;
Means for generating a two-dimensional shape diagram formed by arranging a two-dimensional shape in a specific direction based on output designation information from the read three-dimensional shape data;
Means for outputting a product drawing of an object model based on output designation information from the generated two-dimensional shape diagram and the read parts information;
Compare each direction of the two-dimensional shape map generated based on the output designation information with the direction of the axis passing through the center of the display symbol, and specify the direction in which the display symbol can be best viewed among the directions of the two-dimensional shape diagram Means for
Means for generating a display symbol note for the display symbol ;
The generated display symbol annotation is displayed in the vicinity of the output product drawing corresponding to the display symbol displayed on the two-dimensional shape diagram in the specified direction .

  As described above, according to the present invention, the creator can easily create and output a product drawing from the three-dimensional shape data of the object model by utilizing the knowledge of the designer, Thus, it is possible to significantly reduce the design time and increase the efficiency of the design work.

The whole system block diagram containing the drawing creation assistance apparatus which concerns on this invention, The perspective view which shows the example of the three-dimensional shape data (no R) of components, The perspective view which shows the example of the three-dimensional shape data (with R) of components, The figure which shows the example of the parts list which includes parts information, The figure which shows the example of the R instruction | indication figure corresponding to the three-dimensional shape data of FIG. The figure which shows the example of the output designation information input sheet, Diagram showing multiple layout types in trihedral view, An example of an output sheet for product drawings A diagram showing a three-dimensional view (two-dimensional shape diagram) of the specified layout type, The figure which shows the sectional view produced | generated from the three-dimensional shape data of FIG. 2 and FIG. The flowchart which shows the procedure which produces and outputs the product drawing of parts with the drawing creation assistance method of this invention, The figure which shows the operation screen of the drawing creation support program, Explanatory drawing which shows a mode that a cut surface is defined in the three-dimensional shape data of FIG. The figure which shows the cut view defined in the three-dimensional shape data of FIG. Figure showing output example of product diagram, The figure which shows the example of the three-dimensional shape data of a composite part, The block diagram which shows the drawing creation assistance apparatus used for other embodiment of this invention, A diagram showing a part of a three-dimensional view (two-dimensional shape diagram) in which a spot symbol and a reference hole symbol are displayed, Explanatory drawing which shows the procedure until the spot symbol is disassembled and the direction in which the spot symbol can be most recognized is specified. An enlarged view of the main part showing the reference hole displayed in the three-dimensional shape data of the composite part, An enlarged view of the main part showing the spot note displayed on the spot symbol displayed in the figure of the specified direction, An enlarged view of the main part showing the reference hole note displayed on the reference hole symbol displayed in the figure of the specified direction, In another embodiment of the present invention, a flowchart showing a procedure for creating and outputting a product drawing of a composite part, The figure which shows the example of the output specification information input sheet of the composite part, The figure which shows the example of the parts list which includes the part information of the composite part, It is a figure which shows the example of the output sheet | seat of the product drawing of a composite part.

  An embodiment for carrying out the present invention will be described with reference to the drawings. In FIG. 1, reference numeral 100 denotes a drawing creation support apparatus according to the present invention.

  First, the drawing creation support apparatus 100 (hereinafter referred to as the support apparatus 100) will be described. In the present embodiment, as shown in FIG. 1, the support device 100 includes an output designation information setting unit 111, a three-dimensional shape data reading unit 112, a part information reading unit 113, an R instruction diagram information reading unit 114, A two-dimensional shape diagram generation unit 115, a sectional view generation unit 116, a table information generation unit 117, a product drawing output unit 118, an input / output unit 120, an arithmetic processing unit 121, and a template unit 122 are provided.

  The support device 100 is connected to the design database 200, the input device 300, and the output device 400 through a network line 500.

  The design database 200 includes a three-dimensional shape database 210, a parts information database 220, an output designation information database 230, and a design program database 240.

  In the three-dimensional shape database 210, as three-dimensional shape data of a part (article model), three-dimensional shape data (hereinafter referred to as three-dimensional shape data (without R)) before the folding portion is rounded, Stores three-dimensional shape data (hereinafter, referred to as three-dimensional shape data (with R)) after the folding portion has been rounded. Each example is shown in FIG. 2 and FIG. In addition, a part is a concept including not only a part as a single item but also a composite part in which a plurality of parts are combined.

  The part information database 220 stores part information (part number, part name, material, plate thickness, number, etc.) for each part. R instruction diagram information for each part is also stored here. Each example is shown in FIG. 4 and FIG.

  In the output designation information database 230, output designation information (part number / layout type / paper size) preset for each part by the designer, a layout type prepared in advance, and a paper size are prepared in advance. Output sheet is stored. Each example is shown in FIGS.

  The layout type shown in FIG. 7 includes a plurality of combinations selected from a plan view, a front view, a side view, and a back view (three views in the illustrated example) as the layout type of the two-dimensional shape diagram included in the product drawing. (Type: RS1-RS2, FR1, PL1-PL4, RR1, 8 types in total). The output sheet shown in FIG. 8 includes a two-dimensional shape diagram display region SH1, a sectional view display region SH2, an R instruction diagram display region SH3, a table display region SH4 including a title column and a configuration table, and is generated in each region. The displayed two-dimensional shape diagram, cross-sectional view, R instruction diagram, and table information can be displayed.

  The design program database 240 stores various programs including a design program for creating three-dimensional shape data of parts and a drawing creation support program for executing the present invention.

  In the support device 100, the output designation information setting unit 111 sets output designation information (see FIG. 6) that serves as an output designation condition by an operation from the input device 300, for example, a keyboard. Are stored in the output designation information database 230 of the design database 200 and stored in the storage unit of the arithmetic processing unit 121.

  The output designation information setting unit 111 includes a layout selection unit 111A. The layout selection unit 111A can select one type from a plurality of output layout types (see FIG. 7) of a two-dimensional shape diagram (viewed in three views) by an operation from the input device 300.

  The three-dimensional shape data reading unit 112 is operated from the input device 300, based on the output designation information, from the three-dimensional shape database 210 of the design database 200, and designated three-dimensional shape data (without R, with R). 1 and 2 (see FIG. 2 and FIG. 3) are read (downloaded) into the template unit 122 in the creation apparatus 100. Both of the read three-dimensional shape data are duplicated and stored in the storage unit of the arithmetic processing unit 121. It is supposed to be saved.

  The component information reading unit 113 is operated by the input device 300, based on the output designation information, from the component information database 220 of the design database 200, the component information (part number, product name, material, plate thickness, number, Others (see FIG. 4) is read into the creation apparatus 100, and the read component information is stored in the storage unit of the arithmetic processing unit 121.

  The R instruction diagram information reading unit 114 creates R instruction diagram information (see FIG. 5) of the specified component from the component information database 220 of the design database 200 based on the output designation information by an operation from the input device 300. The R instruction diagram information read is stored in the storage unit of the arithmetic processing unit 121. Here, in the R instruction FIG. 3 shown in FIG. 5, the R value (radius value) is displayed in association with the bent portion to be rounded with respect to the plan view of the component.

  The two-dimensional shape diagram generation unit 115 generates a two-dimensional shape diagram of the designated layout type from the read three-dimensional shape data (without R) 1 by an operation from the input device 300 according to the output designation information. Thus, the generated two-dimensional shape diagram is stored in the storage unit of the arithmetic processing unit 121. FIG. 9 shows an example of the two-dimensional shape diagram (trihedral view) generated. A two-dimensional shape diagram 4 shown in FIG. 9 shows an example of the type PL4 in FIG.

  The cross-sectional view generation unit 116 includes cutting plane information in which a specific cutting position and cutting direction are defined for the three-dimensional shape data (without R) of the part read into the template unit 122 by an operation from the input device 300. A cross-sectional view at a defined cut surface is generated from the replicated three-dimensional shape data (without R, with R), and the generated cross-sectional view is stored in the storage unit of the arithmetic processing unit 121. It has become. FIG. 10 shows an example of a cross-sectional view generated. The cross-sectional view generation unit 116 includes a cut surface definition unit 116A that defines the cut surface.

  The table information generation unit 117 generates table information including a title column and a configuration table column from the read component information based on the output designation information by an operation from the input device 300. The generated table information is The data is stored in the storage unit of the arithmetic processing unit 121. The title column contains the product number, product name, material, etc. The composition table column includes notes and changes.

  The product drawing output unit 118 outputs the output designation information from the two-dimensional shape diagram (three-side view), the sectional view, the table information, and the read R instruction diagram information generated based on the output designation information by an operation from the input device 300. The product drawing in which the information is arranged at a predetermined position is output to the output device 400, for example, a display or a printer. In the display areas SH1 to SH4 of the output sheets (see FIG. 8) prepared in advance, The information is arranged. FIG. 15 shows an output example of the product drawing.

  The output designation information setting unit 111, the three-dimensional shape data reading unit 112, the part information reading unit 113, the R instruction diagram information reading unit 114, the two-dimensional shape diagram generation unit 115, the cross-sectional view generation unit 116, the table information generation unit 117, The product drawing output unit 118 can be executed by an execution operation of the drawing creation support program from the input device 300.

  Next, a procedure in which a creator creates and outputs a product drawing of a part using the creating apparatus 100 will be described with reference to FIG. 11 and the like. Note that the conditions and set values specifically described below are examples for explaining the embodiment of the present invention, and the present invention is not limited to this.

  First, the creator reads a drawing creation support program from the design database 200 by an operation from the input device 300 and opens the program. FIG. 12 shows an example of the operation screen G of the program displayed on the output device 400.

First, output specification information is set. When the creator clicks the output designation information setting button A on the operation screen G, the output designation information setting unit 111 reads the output designation information sheet ST ₁ (see FIG. 6) into the work area S ₀ . For the output designation information sheet ST ₁ , the creator “part number” (for example, “10002”), “layout type” (for example, “PL4”) of the part for which the product drawing is to be created, and “paper size” (for example, “ A1 ”) is set and input. The layout type is selected from layout type information (see FIG. 7). When the save button E is clicked, the input output designation information is stored in the output designation information database 230 and saved in the storage unit of the arithmetic processing unit 121 (step S1).

  Next, the cut surface of the part is defined. When the creator clicks the cut surface definition button B on the operation screen G, the three-dimensional shape data (No R, with R) 1 and 2 (see FIGS. 2 and 3) of the product number included in the output designation information are templates. The data is read by the unit 122 and copied.

Next, with respect to the replicated three-dimensional shape data (without R) 1, a cutting position and a cutting direction for generating a sectional view are defined by an operation from the input device 300. That is, as shown in FIG. 13, by executing the cut surface definition unit 116A, first, a cross-section generation region F surrounding a cut surface for generating a cross-sectional view is set, and the cross-sectional view to be generated in the set cross-section generation region F Two axes L _V and L _H passing through the center O are set. The defined cut surface information is stored in the storage unit of the arithmetic processing unit 121 (step S2).

Note that the cutting position can be specified by the XYZ direction distance from the center of the XYZ coordinate axis shown in FIG. 13, and the cutting direction can be specified by the angle formed between the cutting plane and the XY plane, YZ plane, and XZ plane. Further, the two axis lines L _V and L _H are also used as reference lines for arranging the generated sectional view in the peripheral part of the two-dimensional shape diagram 4 described later.

  Next, data necessary for the product drawings of the above parts is generated. When the creator clicks the product drawing creation button C on the operation screen G, according to the output designation information, the 3D shape data reading unit 112, the part information reading unit 113, the R instruction diagram information reading unit 114, and the 2D shape diagram. The generation unit 115, the sectional view generation unit 116, and the table information generation unit 117 are executed.

  That is, based on the output designation information, the previously copied three-dimensional shape data (without R, with R), the component information (see FIG. 4) and the R instruction diagram information (see FIG. 5) from the component information database 220, Each is read into the storage unit of the arithmetic processing unit 121 (steps S3 to S5).

  Subsequently, based on the output designation information, a two-dimensional shape diagram 4 (see FIG. 9) of the designated layout type is generated from the read three-dimensional shape data (without R) (step S6), and the read three-dimensional shape is obtained. A sectional view 5 (see FIG. 9) is generated from the shape data (without R, with R) and cut surface information (step S7), and table information including a title column and a configuration table column is generated from the read component information. (Step S8).

  The cross-sectional view 5 shows the cross-section display line of the three-dimensional shape data (with R) in which the defined cut surface information is associated with the three-dimensional shape data (with R) read by the execution of the cross-section generator 116. 6 (FIG. 10) is generated. Subsequently, a plate thickness display line 7 is duplicated at a position corresponding to the plate thickness in the plate thickness direction with respect to the generated cross section display line 6, and finally, the cross section display line 6 and the plate thickness display line 7. The connection display line 8 that connects the two ends is generated. In this way, a sectional view 5 is generated.

Finally, a product drawing of the part is output from the obtained data. When the creator clicks the product drawing output button D on the operation screen G, the product drawing output unit 118 is executed. That is, in accordance with the output specification information output sheet ST ₂ is read into the memory unit of the arithmetic processing unit 121, a two-dimensional shape diagram display region SH1 in a two-dimensional shape Figure 4, a cross-sectional view 5, R instructs view in cross-section display area SH2 Table information is arranged in the R instruction FIG. 3 in the display area SH3 and in the title field and the composition table field of the table display area SH4, and the product diagram in which the information is arranged is output to, for example, a display or a printer (step S9). It shows an output example of a product view ST ₃ in FIG. 15.

By executing the above steps S1-S9, author, three-dimensional shape data 1 and 2, the component information of the component, from R based graphic information, based on the output designation information sheet ST _1, easily create parts of a product drawing Can be output.

  Next, another embodiment for carrying out the present invention will be described with reference to FIG. In the present embodiment, an example of outputting a product drawing of a composite part (assembly) composed of a plurality of parts will be given. FIG. 16 shows an example of the three-dimensional shape data of the composite part, and FIG. 17 shows an example of the drawing creation support apparatus in this embodiment.

  As shown in FIG. 16, the three-dimensional shape data 10 of a composite part is composed of three-dimensional shape data 11 and 12 of a plurality of parts. The three-dimensional shape data 11 and 12 of each part includes a spot symbol SP indicating a welding position and a reference hole symbol WP indicating a reference hole position for positioning the part with a pin in welding.

  Corresponding to the three-dimensional shape data 10 of the composite part in FIG. 16, the drawing creation support apparatus 100 ′ shown in FIG. 17 is an R instruction diagram information reading unit as a component to the drawing creation support apparatus 100 shown in FIG. 1. Reference numeral 114 is omitted, and a display symbol comparison / determination unit 131 and a display symbol annotation generation unit 132 are added.

  In addition, the same code | symbol is attached | subjected to the same component as the drawing creation assistance apparatus 100 shown in FIG. 1, and the description is abbreviate | omitted. Further, the drawing creation support apparatus 100 ′ is connected to the design database 200, the input apparatus 300, and the output apparatus 400 through the network line 500 in the same manner as in the above embodiment.

  The display symbol comparison / determination unit 131 compares and determines each direction of the trihedral view and the direction of the spot symbol SP with respect to the spot symbol SP displayed at the welding position of the three-dimensional data 10 of the composite part. Among them, the direction in which the spot symbol SP can be visually recognized best is specified.

  In addition, the display symbol comparison / determination unit 131 determines the direction of each of the three-sided views and the direction of the reference hole symbol WP for the reference hole symbol WP displayed at the position of the reference hole for the positioning pin in the three-dimensional data 10 of the composite part. Comparison is made and the direction in which the reference hole symbol WP can be visually recognized best among the directions in the three views is specified.

FIG. 18 shows an example of a two-dimensional shape diagram (trihedral view) generated by the two-dimensional shape diagram generation unit 115 from the three-dimensional data 10. As shown in the figure, the spot symbol SP _V and the reference hole symbol WP _V displayed on the plan view (PL) can be visually recognized well, but the spot symbol SP _H displayed on the front view (FR) reference hole symbol WP _H is visually difficult recognize (and hard determination) can be seen.

  The display symbol comparison / determination unit 131 will be described in more detail. For the spot symbol SP displayed in the read three-dimensional data 10, the three-dimensional data of the symbol SP is shown in FIG. In this way, it is divided into a plurality (two) of straight line data a and non-linear data (circle data) b, and then, as shown in FIG. A plane c including these is generated from a, and a direction (axis d) perpendicular to the generated plane c of the three-dimensional arrangement is specified. Then, as shown in FIG. (Axis line d) and the angle formed between each direction (axis lines AL1, AL2, AL3) in the three-plane view (front view, side view, plan view) of the layout type (eg, “PL4”) included in the output designation information Compare and judge, the most parallel and the angle is zero Gastric direction, a visual so spot symbol SP is specified as the direction which can be best appreciated. And the direction identified among the directions of the trihedral view is associated with the spot symbol SP.

  Further, with respect to the reference hole symbol WP displayed in the read three-dimensional data 10, referring to FIG. 20, the three-direction axes (AL1, AL2, AL2) displayed in the three-dimensional data of the reference hole symbol WP are displayed. AL3), the axis line (AL3) passing through the center O of the reference hole symbol WP is identified, and the identified axis line (AL3) and the layout type (eg, “PL4”) included in the output designation information are viewed in three planes ( The angle formed with each direction (planar view, front view, side view) is compared and determined, and the direction closest to the right angle is identified as the direction that the reference hole symbol WP can best recognize visually. And the direction specified among the directions of the trihedral view is associated with the reference hole symbol WP.

  In the latter case, for example, a display view specifying button is provided on the operation screen G as a means for specifying the direction in which the reference hole symbol WP can be recognized best among the three viewing directions. A list of axis lines (AL1, AL2, AL3) for each of the three views is displayed, and the same symbol is obtained from the three-direction axes included in the direction (for example, plan view) in which the creator can visually recognize the reference hole symbol WP best. An axis passing through the center line of the WP may be selected by itself, an identification symbol (for example, W) may be attached, the direction may be specified, and the direction and the reference hole symbol WP may be associated with each other by an identification number.

  The display symbol annotation generation unit 132 includes a two-dimensional shape (for example, a plan view) in a direction specified by the display symbol comparison / determination unit 131 among the two-dimensional shape diagrams (trihedral view) generated by the two-dimensional shape diagram generation unit 115. Display symbol notes 13 and 16 (see FIGS. 21 and 22) to be displayed in the vicinity of the spot symbol SP and the reference hole symbol WP displayed in FIG.

  As shown in FIGS. 21 and 22, the display symbol notes 13 and 16 are composed of lead lines 14 and 17 drawn from the centers of the spot symbol SP and the reference hole symbol WP, and annotation information 15 and 18. The note information 15 of the spot symbol SP includes part number information (for example, 10011 and 10012) of the parts constituting the composite part, and the note information 18 of the reference hole symbol WP includes a reference hole for a positioning pin at the time of welding. As well as a hole diameter. The hole diameter is automatically calculated from the displayed circle of the displayed reference hole symbol WP.

  In the drawing creation support apparatus 100 ′ configured as described above, the output designation information setting unit 111, the three-dimensional shape data reading unit 112, the part information reading unit 113, the two-dimensional shape diagram generating unit 115, and the display symbol comparison / determination unit 131. The section drawing generation unit 116, the display symbol annotation generation unit 132, the table information generation unit 117, and the product drawing output unit 118 can be executed by an execution operation of the drawing creation support program from the input device 300.

  Next, a procedure in which a creator creates and outputs a product drawing of a composite part using the creating apparatus 100 ′ will be described with reference to FIG. 23 and the like.

  First, the creator reads a drawing creation support program from the design database 200 by an operation from the input device 300 and opens the program.

  When the creator clicks the output designation information setting button A on the operation screen G in FIG. 12, the output designation information setting unit 111 reads the output designation information sheet. The creator selects “part number” (for example, “10010”), “layout type” (for example, “PL4”) and “paper size” to be output (for example, “A0”) for the composite part for which the product drawing is to be created on the output designation information sheet. ") Is set and input (step S11). An example is shown in FIG.

  Next, the creator clicks the cut surface definition button B on the operation screen G, and the three-dimensional shape data (without R, with R) of the composite part number included in the output designation information is read and copied. . Next, with respect to the three-dimensional shape data (without R) of the duplicated composite part, a cutting position and a cutting direction for generating a sectional view are defined by an operation from the input device 300 by the same method as in the above embodiment ( Step S12).

  Next, data necessary for the product drawing of the composite part is generated. When the creator clicks the product drawing creation button C on the operation screen G, the 3D shape data reading unit 112, the part information reading unit 113, the 2D shape drawing generation unit 115, and the display symbol comparison determination are performed according to the output designation information. The unit 131, the sectional view generation unit 116, the display symbol annotation generation unit 132, and the table information generation unit 117 are executed.

  In other words, based on the output designation information, the three-dimensional shape data (without R, with R) of the previously copied composite part and the part information (see FIG. 25) of the composite part are read from the part information database 220 (step S13). -Step S14). FIG. 25 shows an example of the component information of the composite component. As shown in the figure, the upper level (01) indicates a composite part (part number 10010), and the lower level (02) indicates parts (part numbers 10011 and 10012) constituting the composite part. When the upper level (01) is selected, the component information of the lower level (02) belonging to the upper level (01) is automatically read.

  Subsequently, based on the output designation information, a two-dimensional shape diagram of the designated layout type is generated from the read three-dimensional shape data (without R) of the composite part (step S15), and the display symbols are compared and determined (step S15). Step S16). Further, a sectional view is generated by the same method as in the above embodiment from the read three-dimensional shape data (without R, with R) and the cut surface information of the composite part (step S17), and then a display symbol annotation part is generated. (Step S18). Further, table information including a title column and a configuration table column is generated from the component information of the read composite component (step S19).

Finally, a product drawing of the composite part is output from the obtained data. Author, on the operation screen G, clicking the product view output button D, the product view output unit 118 is performed, in accordance with the output designation information, to the output sheet ST ₄ shown in FIG. 26, a two-dimensional shape diagram display region The two-dimensional shape diagram is displayed in SH1, the sectional view is displayed in the sectional view display area SH2, the title column information and the configuration table information are arranged in the table information display area SH4, and then the product drawings in which the respective titles are arranged are output to a display or a printer. (Step S20). Here, the configuration table information includes spot information related to the spot symbol SP and reference hole information related to the reference hole symbol WP.

  By executing the above steps S11 to S20, the creator can easily create and output a product drawing of the composite part based on the output designation information sheet from the three-dimensional shape data of the composite part and the part information.

  Further, when outputting the product drawing of the composite part, these symbols can be best recognized visually in the three-plane directions from the spot symbol SP and the reference hole symbol WP displayed in the three-dimensional shape data of the composite part. It is now possible to automatically identify the direction and automatically display notes for those symbols that are displayed in the diagram of the specified direction.

  This not only makes it easy to create and output product drawings of composite parts, but also greatly reduces the work of displaying notes for display symbols, which has been a very detailed and challenging task. Thereby, the man-hour and time accompanying preparation and output of the product drawing of a composite part can be reduced significantly.

  2 may include a display symbol, for example, the reference hole symbol WP shown in FIG. In this case, the drawing creation support apparatus 100 shown in FIG. 1 includes the display symbol comparison / determination unit 131 and the display symbol annotation generation unit 132 shown in FIG. 17, and the product drawing creation and output procedure shown in FIG. Before the output step, a display symbol (WP) comparison determination step and a display symbol annotation generation step shown in FIG. 23 may be included. Display symbols such as shown in FIG. 22 can be displayed on the plan view of the two-dimensional shape diagram 4 shown in FIG.

  As described above, by using the drawing creation support apparatus of the present invention, it is possible to efficiently create and output product drawings of parts and composite parts, greatly reducing the design time and increasing the efficiency of the design work. Can be achieved.

  INDUSTRIAL APPLICABILITY The present invention can be used as an apparatus and a method used for creating and outputting product drawings of parts and composite parts from three-dimensional shape data and part information of parts and composite parts.

1, 2, 11, 12 Parts 3D shape data 3 R indication diagram 4 2D shape diagram 5 Section view 6 Section display line 7 Plate thickness display line 8 Connection display line 10 3D shape data of composite part 13, 16 display Symbolic annotations 14, 17 Lead lines 15, 18 Notes information 100, 100 'Drawing creation support device 111 Output designation information setting unit 111A Layout selection unit 112 Three-dimensional shape data reading unit 113 Part information reading unit 114 R instruction diagram information reading unit 115 Two-dimensional shape drawing generation unit 116 Sectional view generation unit 116A Cut surface definition unit 117 Table information generation unit 118 Product drawing output unit 120 Input / output unit 121 Operation processing unit 122 Template unit 131 Display symbol comparison determination unit 132 Display symbol annotation generation unit 200 Design database 210 3D shape database 220 Parts information database 230 Output specification information database 240 Design program database
300 input device 400 output device 500 network line SP spot symbol ST ₁ output designation information sheet ST ₂ and ST ₄ output sheet ST ₃ product drawing WP reference hole symbol

Claims (8)

Means for reading three-dimensional shape data of an object model from a database and including a display symbol composed of a plurality of linear and non-linear components ;
Means for reading part information related to the object model from a database;
Means for setting output designation information of a product drawing to be output for the object model;
Means for generating a two-dimensional shape diagram formed by arranging a two-dimensional shape in a specific direction based on output designation information from the read three-dimensional shape data;
Means for outputting a product drawing of an object model based on output designation information from the generated two-dimensional shape diagram and the read parts information;
Each direction of the two-dimensional shape diagram generated based on the output designation information is compared with the direction of the plane generated from the plurality of linear components of the display symbol. Means for identifying a direction that can be seen well ,
Means for generating a display symbol note for the display symbol ;
The generated drawing symbol annotation is displayed in the vicinity of the output product drawing corresponding to the display symbol displayed on the two-dimensional shape diagram in the specified direction. .   A plurality of combinations of two-dimensional shapes selected from plan view, front view, side view, and back view are prepared as output designation information, and any one type can be designated. Item 2. A drawing creation support apparatus according to Item 1.   Means for generating a cross-sectional view of a specific cutting position and cutting direction from the read three-dimensional shape data, and the generated cross-sectional view is included in the product drawing of the output object model, The drawing creation support apparatus according to claim 1 or 2. R instruction information for rounding the folding part of the object model, which includes R instruction information displayed in association with an R value associated with a display line indicating the folding part of the two-dimensional shape diagram of the object model. The means for reading the instruction diagram information is provided, and the read R instruction diagram information is included in the product drawing of the output object model. Drawing creation support device. Means for reading three-dimensional shape data of an object model from a database and including a display symbol including an axis passing through the center ;
Means for reading part information related to the object model from a database;
Means for setting output designation information of a product drawing to be output for the object model;
Means for generating a two-dimensional shape diagram formed by arranging a two-dimensional shape in a specific direction based on output designation information from the read three-dimensional shape data;
Means for outputting a product drawing of an object model based on output designation information from the generated two-dimensional shape diagram and the read parts information;
Compare each direction of the two-dimensional shape map generated based on the output designation information with the direction of the axis passing through the center of the display symbol, and specify the direction in which the display symbol can be best viewed among the directions of the two-dimensional shape diagram Means for
Means for generating a display symbol note for the display symbol ;
The generated drawing symbol annotation is displayed in the vicinity of the output product drawing corresponding to the display symbol displayed on the two-dimensional shape diagram in the specified direction. .   A plurality of combinations of two-dimensional shapes selected from plan view, front view, side view, and back view are prepared as output designation information, and any one type can be designated. Item 6. A drawing creation support apparatus according to Item 5.   Means for generating a cross-sectional view of a specific cutting position and cutting direction from the read three-dimensional shape data, and the generated cross-sectional view is included in the product drawing of the output object model, The drawing creation support apparatus according to claim 5 or 6. R instruction information for rounding the folding part of the object model, which includes R instruction information displayed in association with an R value associated with a display line indicating the folding part of the two-dimensional shape diagram of the object model. The means for reading the instruction diagram information is provided, and the read R instruction diagram information is included in the product drawing of the output object model, according to any one of claims 5 to 7. Drawing creation support device.

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