JPH056910B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a component configuration management method for a computer-aided design and drawing system, and particularly to a component configuration management method suitable for designing components constituting a tree structure.

[Conventional technology]

In recent years, computer-based design and drawing systems (so-called
CAD systems) are becoming widely used. A conventional device of this type is disclosed in Japanese Patent Application Laid-Open No. 59-220867.
As stated in the publication, data consistency between systems can be maintained by creating a bill of materials from drawings created using a computer-aided design system and by providing component information from the bill of materials to drawings. It is common that

[Problem that the invention seeks to solve]

One product is made up of many parts, and most of the parts generally have a tree structure. However, in conventional CAD systems, each drawing created is independent, and relationships such as parent-child relationships between drawings are not taken into account, and the design work is consistent from planning to detailed design using the CAD system. When doing this, there was a problem that independent drawings could not be managed hierarchically.

An object of the present invention is to provide a CAD system that supports the design of parts constituting a tree structure.

[Means for solving problems]

The above purpose is to create, for each part, a parts management table that manages the hierarchical structure of parts, a figure management table that manages the shapes that make up the part shape of the part,
By providing at least a component layer management table for managing the component layers of the component and its placement position in the parent component, and by associating the component management table with the component layer management table and the figure management table for each component. achieved.

[Operation] Parent parts,
By storing a pointer to the parts management table of child parts and parallel parts and following this pointer,
Know the parent parts, child parts, and parallel parts (parts in the same layer) of a certain part. Therefore, even if the hierarchy of the parts structure becomes deep, all the upper and lower parts can be known by sequentially following the pointer.

In addition, the parts management table has a pointer to the figure management table that manages the figures that make up the part shape, and when the part shape is composed of multiple figures, the figure management table is chained with the pointer. You can easily know the figures that make up a shape.

Further, the parts management table has a pointer to the parts composition layer management table. The component layer management table stores the placement position of the component in the component layer, the placement position in the parent component, rotation angle, reversal information, and the like. From the layer number of the component itself and the layer number of the parent component, it is possible to know which layer of the child component is placed on which layer of the parent component. From the placement position in the parent part and the rotation angle in the parent part, it can be determined where the child part is placed in the parent part and how much it is rotated in use. From the inversion information, it can be known whether the defined part shape is being used in an inverted manner.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an example of the overall configuration of a system that implements the present invention. 101 is a central processing unit that analyzes parameters of input commands;
Execute command processing. Reference numeral 102 is used as a magnetic disk file to store component configuration data and component shape data. A communication control processing device 103 connects lines and controls data transmission and reception. A terminal control device 104 controls the graphic display. 105 and 106 are graphic displays for inputting commands, displaying parts shapes, displaying parts composition lists, and the like.

Processes performed by the central processing unit 101 include component creation processing, component configuration editing processing, component movement, rotation processing, display control processing, component attribute addition processing, file management processing, save/load processing, component shape manipulation processing, and the like. There is an overall control process that controls the flow of processing.

Figure 2 shows an outline of the flow of the entire system. First, in initial settings 201, a data file is opened and a work area is initialized. In the command distribution 202, control is passed to the corresponding processing modules 203 to 210, depending on the command number of the command input from the terminal. In the parts creation process 203, new design start process, continuous design start process, child part creation process,
Performs parts import processing, etc. Parts configuration editing process 20
In step 4, processing for changing the configuration of parts, processing for changing part numbers, etc. are performed. In the component movement and rotation processing 205, the component shape is moved, rotated, reversed, etc. in component units (including child components). In the display control process 206, parts configuration display processing, part shape display processing, non-display processing, etc. are performed. In the component attribute addition processing 207, processing such as definition, deletion, and display of component attributes and configuration attributes is performed. In the file processing 208, processing for registering designed part data in a file, processing for searching from the file, processing for deletion, etc. are performed. In the save/load processing 209, processing for temporarily saving (save) the part data under design to a work file, processing for recovering (loading) from the work file, etc. are performed. In the component shape manipulation processing 210, processing such as definition, modification, and deletion of component shapes is performed.

FIG. 3A is a configuration diagram of a parts management table for managing the hierarchical structure of parts within the central processing unit 101, and the parts are assumed to have a hierarchical structure (tree structure) as shown in FIG. 3B. Parts management table 301
includes a part number 304 and a pointer 30 to a figure management table 302 that manages figures constituting the part shape.
5. Pointer 3 to 303 in the component composition layer management table that manages the placement position of the component in the relevant composition layer.
06, Pointer 3 to the parts management table of the parent part
07, Pointer to the parts management table of child parts 3
08, a pointer 309 to the parts management table of parallel parts, etc. are stored.

Figure 4 shows a parts management table 30 for one part.
1, a figure management table 302, and a component composition layer management table 303. The figure management table 302 stores a pointer 410 to the next figure management table for the same part, a figure number 411, a part number 304 of the part to which the figure belongs, and the like. The component composition layer management table 303 includes a pointer 412 to the next component composition layer management table, a layer number 413 for the component itself, a layer number 414 for the parent component, a placement position 415 for the parent component, and a pointer 412 for the next component composition layer management table. It stores a rotation angle 416, reversal information 417 indicating whether or not the part shape is used after being reversed in the parent part.

Next, the creation of each management table in FIG. 3A and various usage examples of the management tables will be explained with reference to FIGS. 5 to 8. In addition, Figures 5 and 6
The processes in FIGS. 7, 7, and 8 are executed independently by the user specifying the corresponding command, and there is no relationship between the processes.
In addition, in each processing flow diagram, the active parts are the parts to be processed (the parts displayed on the screen as the processing target), the active layer is the constituent layer of the part to be processed, and the constituent layers are the parts forming the tree structure. It means hierarchy.

FIG. 5 is a schematic flow diagram of part creation command processing. In the component creation command, first, in step 501 of temporary registration of the component, the part number of the newly created child component is temporarily registered in the component configuration file. Next, in the active layer presence/absence check 502, if there is no active layer, error processing 503 is performed and the process returns. If there is an active layer, add step 5 to the parts management table.
In step 04, a parts management table 301 for a newly created child part is created, and a pointer 307 to the parts management table for the parent part is set. Also, the pointer 308 to the component management table of the child component of the previous component management table or the pointer 309 to the component management table of parallel components is changed. Next, in the active component hiding step 505, the shape of the active component that has been displayed on the graphic display is hidden. Also. Since a new child part is created, the color status is changed to part color valid state in the part color valid state process 506, and the active part change process 50
In step 7, the newly created child part is made an active part.
Next, the shape of the previous active component that was previously hidden in the active component display 508 is displayed in normal color. In addition, in parts bill redisplay 509, the parts bill to which newly created child parts have been added is displayed on the graphic display. Further, the system status display 510 displays the system status of the newly created child component as an active component, and the component creation process ends.

FIG. 6 is a schematic flow diagram of configuration layer definition command processing. In the component layer definition command, first, a modifiable parts check 601 is used to check whether the component whose component layer is to be defined can be modified.
If it cannot be corrected, perform error processing 602,
Return. When modification is possible, the component status flag in the component master record is changed 603 to prevent the configuration and shape from being changed from other terminals.
In addition, in the update 604 of the component status flag of the component management table, the configuration and shape are being modified. next,
In the creation of component composition layer management table 605, a new component composition layer management table 303 is created, and the pointer to the next component composition layer management table in the previous component composition layer management table is changed. Also, the layer number 413 for the part itself, and the layer number 414 for the parent part.
Set what is given by the command to , and set the placement position 415 in the parent part, the rotation angle 416 in the parent part,
An initial value (0) is set in the inversion information 417, and the constituent layer definition processing is completed.

FIG. 7 is a schematic flowchart of synthesis command processing, which is one of component configuration editing. In the composition command,
A component management table search 701 for the corresponding component searches for a component management table for the component to be synthesized. Next, in part temporary registration 702, the part number of the composited part is temporarily registered in the parts configuration file. Also,
In adding parts management table 703, a parts management table 301 of the composited parts is created, and a pointer 307 of the parts management table of the parent part is set. Next, in parts configuration redisplay 704, the updated parts configuration table is displayed on the graphic display. Furthermore, by changing the pointer of the parts management table due to composition, pointer 3 to the parts management table of the parent part of the parts management table of the part to be composited is changed.
07, the pointer 309 to the parts management table of parallel parts is changed. Finally, in component configuration layer management table creation 706, a configuration layer management table corresponding to the synthesized component is created, and the process ends.

FIG. 8 is a schematic flow diagram of part movement command processing. In the parts movement command, first, a parts management table 301 of the moving part is found by searching 801 of the parts management table of the corresponding part. next,
In the figure movement 802, the figure management table 302 of figures constituting the part shape can be known from the figure management table pointer 305 of the part management table. Since the graphic number 411 is stored in the graphic management table 302, graphic data is searched based on this graphic number and moved by the given movement amount. Next, pointer 41 to the next figure management table for the same part in figure management table 302
From 0, the position of the next figure management table is known, and the figure is moved in the same way. By repeating this, the corresponding part can be moved. next,
In the search 803 for the parts management table of child parts, the pointer 308 to the parts management table of child parts in the parts management table 301 and the pointer 309 to the parts management table of parallel parts are sequentially traced, and as long as there are child parts of the corresponding part, The movement 802 of the figure and the search 803 of the parts management table for child parts are repeated. After moving the figures of all the child parts, change the parts management table 30 in the part composition layer management table change 804.
Following the pointer 306 to the component configuration layer management table 303 of No. 1, the component configuration layer management table 303
Knowing this, the placement position 41 in the parent part of this table
Add the amount of movement to 5. Next, in the part shape before movement display 805, the part shape before movement displayed on the graphic display is hidden. Then, in a part shape display after movement 806, the part shape after movement is displayed on the graphic display, and the process ends.

An embodiment of the present invention has been described above. According to this embodiment, it is possible to proceed with the design of parts by associating the hierarchically structured part structure with the part shape, and it is possible to create and edit the part structure through interactive processing.

[Effects of the Invention] As is clear from the above description, the present invention has the following effects.

(1) It is possible to manage the hierarchical structure of the parts that make up the product,
You can proceed with the design by associating the part shape with the part configuration.

(2) Hierarchical component configurations can be easily created and edited through interactive processing during component design.

(3) You can manipulate the shape of each part by moving, rotating, reversing, display control, etc.

(4) It is possible to shorten the period for designing parts with a hierarchical structure.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an example of a system configuration for realizing the present invention, Fig. 2 is a schematic processing flow diagram of the entire system, and Fig. 3 shows the relationship between the parts management table, figure management table, and parts composition layer management table. Figure 4 is a configuration diagram of one parts management table, figure management table, and component composition layer management table, Figure 5 is a schematic flow diagram of component creation command processing, and Figure 6 is a schematic flow diagram of composition layer command processing. Figure, 7th
The figure is a schematic flowchart of synthesis command processing, and FIG. 8 is a schematic flowchart of component movement command processing. 101...Central processing unit, 102...Magnetic disk, 103...Communication control processing unit, 104...
Terminal control device, 105... Graphic display, 201... Initial settings, 202... Command distribution, 203... Parts creation processing, 204... Parts configuration editing processing, 205... Parts movement/rotation processing,
208...File processing, 301...Parts management table, 302...Graphic management table, 303...
...Part composition layer management table.

Claims (1)

[Claims] 1. In a parts configuration management method for a design and drawing system that supports the design of parts constituting a hierarchical structure using a computer, for each part, a parts management table for managing the hierarchical structure of parts, and a part management table for managing the hierarchical structure of the parts, A figure management table for managing figures constituting a part shape, and a component composition layer management table for managing at least the constituent layers of the part and its placement position in the parent part are provided, and the parts management table and the part are arranged for each part. A component configuration management method for a design and drafting system, characterized by associating a configuration layer management table and a figure management table.