JPH0683881A - Imparting method for parts number in assembly drawing - Google Patents

Abstract

PURPOSE:To automatically impart the parts number corresponding to a degree of importance, to each parts for constituting a parts assembly. CONSTITUTION:A graphic data base 1 in which graphic data of each parts is stored, a knowledge base 4 in which knowledge for a design is described, a parts column data base 3 in which parts number data and parts attribute data are to be stored, and a balloon data base 2 in which graphic data of a leader line and parts number data are to be stored are provided. First of all, the parts attribute data is collected from the knowledge base 4, and also, parts number data related to each parts is generated in the sequence corresponding to a degree of importance of each parts, and they are stored in the parts column data base 3. Subsequently, graphic data of a leader line related to each parts is generated, and stored in the balloon data base 2 together with the parts number data. In the end, based on the balloon data base 2, the leader line and the parts number related to each parts are plotted on an assembly drawing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention outputs an assembly drawing of a product formed by combining a plurality of parts or an intermediate assembly part (hereinafter, collectively referred to as a part assembly) in an automatic design system using a knowledge base. The present invention relates to a device, and more particularly, to a method of giving a part number display to the tip of a lead line extended from each part on an assembly drawing.

[0002]

2. Description of the Related Art In such an automatic design system, a lead wire is drawn from each of the parts constituting a part assembly, and a circle mark is attached to the tip of each lead wire (hereinafter, the lead wire and the circle mark are referred to as a balloon. ), As a method of assigning a part number in the circle, draw a plurality of numbered balloons in the assembly drawing in advance, and combine the balloon and the part so that each straight line connecting the balloon and the part does not intersect. A method has been proposed in which the order of the parts to be described in the parts column is determined based on the result of the selection (Japanese Patent Laid-Open No. 2-264367 (G
06F15 / 60]).

[0003]

However, in the above method, since the part number of each part is determined by the position of the part in the assembly drawing, there is no relation between the part number and the importance of the part. There was a problem that the importance of each part could not be grasped.

An object of the present invention is to provide a method of assigning a part number in an assembly drawing, in which a part number in an order corresponding to the importance of the part is automatically assigned in the balloon of each part constituting the part assembly. It is to be.

[0005]

SUMMARY OF THE INVENTION In the present invention, a graphic database (1) in which graphic data of each part constituting a part assembly is stored, and a design knowledge of the part assembly has a tree-like hierarchical structure. Written Knowledge Base (4)
And a part column database (3) in which part number data and part attribute data of parts constituting a part assembly should be stored for each part, and a figure including the start point and end point coordinates of the leader line for each part A balloon database (2) in which data and part number data should be stored for each part is provided, and a part column data creating process, a balloon data creating process, and an assembly drawing output process are executed.

[0006] The parts column data creation process is based on the knowledge base (4)
By the knowledge processing based on, the part attribute data of each part that constitutes the part assembly is collected, the importance of each part is determined, and the part number data for each part is generated in the order according to the importance, The part number data is stored in the part column database (3) together with the part attribute data.

In the balloon data creating step, drawing line drawing data for each part constituting the part assembly is created based on the drawing database (1), and the part number data created based on the knowledge base (4). With
It is stored in the balloon database (2).

In the assembly drawing output process, the graphic database (1)
The assembly drawing of the parts assembly is output based on the drawing, and the drawing line and the part number for each part are drawn based on the balloon database (2) on the assembly drawing, and based on the parts column database (3). This is for drawing the parts column.

In the process of creating balloon data,
The start point of the lead line of each part is set to a predetermined specific coordinate in each part, and the end point of the lead line is on the extension line connecting the center coordinates of the part assembly and the start point and outside the occupied area of the part assembly. Set.

[0010]

In the component column data creation process, attribute data of each component that constitutes the component column, such as the component name, component code, material, etc., from the lower hierarchy of the component assembly, based on a previously constructed knowledge base. Will be collected. At this time, the importance of each part is determined based on the knowledge of the importance of each part, and the part number data is generated in the order according to the importance. Then, the component attribute data and the component number data are stored in the component column database (3) for each component.

In the balloon data creation step, the lead line for each part can be determined from, for example, the center coordinates of the part assembly, the occupied area of the part assembly, and the specific coordinates of each part constituting the part assembly. That is, the start point of the leader line is set to a predetermined specific coordinate (for example, the center coordinate) in each component, and the end point of the leader line is on the extension line connecting the center coordinate of the component assembly and the start point and occupied by the component assembly. Set outside the area.
As a result, all the lead lines are led out radially from each component around the center coordinates of the component assembly, so that the lead lines do not intersect each other. The drawing line graphic data created in this manner is used together with the part number data generated based on the knowledge base (4) and the balloon database (2) for each part.
Stored in.

In the assembly drawing output process, the graphic database
Graphic data of each part in (1), parts column database (3)
The part number data and part attribute data in the above, the drawing line graphic data and the part number data in the balloon database (2) are output to the same display device, and are displayed for each part on the assembly drawing of the part assembly. The lead line is drawn, and the part number data of the part is drawn at the tip of each lead line. Further, in the margin of the assembly drawing, a parts column (39) including attribute data such as part number data and part name is drawn.

[0013]

According to the method of assigning a part number in an assembly drawing according to the present invention, the part number drawn at the tip of the lead line for each part is of importance according to the knowledge of the designer. The designer's intention is reflected in the part number, and the relationship and similarity between parts can be grasped based on the part number.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an apparatus configuration for carrying out the present invention. A graphic database (1) in which graphic data of each part constituting a part assembly is stored, and a knowledge of the design of the part assembly is a tree. A knowledge base (4) described in a hierarchical structure, a part column database (3) in which part number data and part attribute data including a part name of a part constituting a part assembly should be stored for each part, and a part A balloon database (2) in which graphic data including coordinates of start and end points of each lead line and part number data should be stored for each part.

The knowledge processing device (5) is connected to the knowledge base (4), and the knowledge base (5) is operated by operating the keyboard (9).
Various knowledge processes such as inference based on the design knowledge described in (4) are executed.

The databases (1), (2) and (3) and the knowledge processing device (5) are connected to the display storage device (7) via the data input / output device (6), and the display storage device (7) is connected. The image generated therein is displayed on the display device (8).

FIGS. 4 and 5 show a component assembly to which component numbers are given in this embodiment. The component assembly (12) has three components A (14), B (15) and C ( 1
It is composed of 6). As shown in FIG. 5, part A (14)
Is from two plates (17) (18), part B (15) is from three plates (19) (20) (21), and part C (16) is from two plates
It is composed of (22) and (23).

FIG. 2 shows a product (1
It shows a part of the tree-like hierarchical structure of the knowledge base (4) for (1), and the lower hierarchy of the product (11) includes a plurality of component assemblies (12), (13) that make up the product (11). ) ... Design knowledge is described.

At the lower level of the parts assembly (12), the three parts A (14), B (1
5), design knowledge about C (16) is described, and each component
The lower layers of (14), (15), and (16) are plates A1 (17), A2 (18), B1 (19), B2 (20), and B3, which are the respective constituent members.
Design knowledge of (21), C1 (22), and C2 (23) is described.

FIG. 6 is an assembly drawing of the component assembly (12) output by the above apparatus. Lead lines (33), (34) and (35) are drawn out from the respective components, and the tip portions of the respective lead lines are drawn. Circles (36), (37) and (38) are drawn on the circles, and part numbers are given in the circles. In the margin of the assembly drawing, a parts column (39) including a part number, a part name, a part code, a number, a material, and a note is drawn.

FIG. 3 shows an assembly procedure output procedure executed by the knowledge processing device (5) and the data input / output device (6).
Roughly speaking, it is composed of a parts column data creating process, a balloon data creating process, and an assembly drawing output process.

In the process of creating the parts column data, knowledge processing based on the knowledge base (4) is executed to collect the parts attribute data located in the lower hierarchy of the parts assembly (S1) and the importance of each part. , The part number data for each part is generated in the order corresponding to the importance, and the part number data is stored in the parts column database (3) in order of importance together with the part attribute data (S2).

Here, the part attribute data of the knowledge base (4) includes a part name, a part code, the number of members, a material and the like. The knowledge base (4) describes knowledge about the importance of each part.

In the balloon data creation step, the center coordinates and occupied area of the parts assembly are fetched from the graphic database (1) (S3). In FIG. 4, the center coordinate (24) of the part assembly (12) is the center point of the rectangular occupied area (25) that encloses the parts A (14), B (15) and C (16) as shown by the broken line. Is set to.

Next, as shown in FIG. 3, among the center coordinates of each plate constituting each component, the coordinate located at the farthest end from the center of the component assembly is set as the balloon starting point coordinate.
(S4).

In FIG. 5, for the component A (14), the component center coordinates (26) of the plate A1 (17) and the plate A2 are used.
Comparing the part center coordinates (27) in (18), the latter part center coordinates (27) is the part assembly center coordinates (24).
Since it is distant from, the parts center coordinates (27) are set to the starting point coordinates of the leader line (33). Regarding the component B (15), the component center coordinates (28) of the plate B1 (19), the component center coordinates (29) of the plate B2 (20), and the plate B3 (21)
Comparing the parts center coordinates (30) of the plate B1 (19)
The parts center coordinates of (28) are the parts assembly center coordinates
Since it is located at the farthest end from (24), the parts center coordinates (2
8) is set to the starting point coordinates of the leader line (34). Further, regarding the component C (16), comparing the component center coordinates (31) of the plate C1 (22) and the component center coordinates (32) of the plate C2 (23), the latter component center coordinate (32) is better. Since it is distant from the parts assembly center coordinates (24), the parts center coordinates (32) are set as the starting point coordinates of the leader line (35).

Subsequently, as shown in FIG. 3, the balloon position is determined from the center coordinates of the component assembly, the occupied area, and the balloon start point coordinates (S5).

In FIG. 5, the lead wire (3
3) is drawn out on an extension line connecting the parts assembly center coordinates (24) and the parts center coordinates (27), and the end point coordinates are set outside the parts assembly occupied area (25), and the lead line ( A circle mark (36) is connected to the tip of 33).
Similarly, the lead line (34) of the part B (15) is drawn on an extension line connecting the part assembly center coordinates (24) and the part center coordinates (28), and the end point coordinates thereof are the part assembly occupied area (25). A circle mark (37) is connected to the tip of the lead wire (34). Lead wire (3
5) is drawn out on the extension line connecting the part assembly center coordinates (24) and the part center coordinates (32), and its end point coordinates are set outside the part assembly occupied area (25),
A circle mark (38) is connected to the tip of the lead wire (35).

The coordinates of the start point and end point of each lead line
The center coordinates of the circle and the circle are stored in the balloon database (2) as graphic data for drawing the balloon.

Subsequently, as shown in FIG. 3, the part number of each part determined by the knowledge processing is distributed to each balloon (S6). The assigned part numbers are stored together with the graphic data in the balloon database (2).

In the assembly drawing output step, the graphic data (part drawing data) of each part in the graphic database (1), the part number data and the part attribute data (part column data) in the part column database (3), the balloon The drawing line graphic data and the part number data (balloon data) in the database (2) are output to the display device (8) via the display storage device (7) (S7).

As a result, as shown in FIG. 6, the lead lines (33) (34) (for the respective parts A (14), B (15), C (16) on the assembly drawing of the part assembly (12). 35) is drawn,
In the circles (36) (37) (38) at the tip of each lead wire, the part number "3", in the order according to the importance of each part,
"1" and "2" are drawn.

In the margin of the assembly drawing, a component column (39) including attribute data such as component number data and component name is drawn. Here, the order of the parts drawn in the parts column (39) is the order of the part numbers.

As described above, according to the present invention, the order of description in the parts column of each part is as intended by the designer, and it becomes easy to judge the parts configuration and the similarity of parts. Further, since the lead lines are drawn radially with one point as the center, the lead lines do not intersect with each other.

The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or limiting the scope. The configuration of each part of the present invention is not limited to the above-mentioned embodiment, and it goes without saying that various modifications can be made within the technical scope described in the claims.

[Brief description of drawings]

FIG. 1 is a block diagram showing a device configuration for implementing the present invention.

FIG. 2 is a diagram showing a tree-like hierarchical structure of a knowledge base.

FIG. 3 is a flowchart showing an assembly drawing output procedure according to the present invention.

FIG. 4 is a diagram illustrating center coordinates and an occupied area of a component assembly.

FIG. 5 is a diagram illustrating a drawing method of a leader line.

FIG. 6 is an assembly drawing finally output.

[Explanation of symbols]

 (1) Graphic database (2) Balloon database (3) Parts column database (4) Knowledge base (12) Parts assembly (14) Parts A (15) Parts B (16) Parts C (24) Parts assembly center coordinates (25 ) Area occupied by parts assembly

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Furudate 2-18, Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (2)

[Claims] 1. An apparatus for outputting an assembly drawing of a parts assembly configured by combining a plurality of parts, which is a method of giving a part number display to the tip of a lead line extended from each part on the assembly drawing, A graphics database that stores the graphics data for each part that makes up a parts assembly.
(1), the knowledge base in which the design knowledge of the part assembly is described in a tree-like hierarchical structure (4), and the part attribute data including the part number data and the part name of the parts constituting the part assembly The part column database (3) that should be stored in and the balloon database (2) in which graphic data including the start point and end point coordinates of the leader line for each part and the part number data should be stored for each part By the knowledge processing based on the base (4), the part attribute data of each part that constitutes the part assembly is collected, the importance of each part is judged, and the part number data of each part is arranged in the order according to the importance. And the part number data together with the part attribute data in the part column database (3)
The part number data created based on the knowledge base (4) is created based on the part column data creation process to be stored in A balloon data creation process of storing the data in the balloon database (2) together with the data, and an assembly drawing of the part assembly is output based on the figure database (1), and the balloon database is displayed on the assembly drawing drawing.
A drawing of a lead line and a part number for each part based on (2), and an assembly drawing output step of drawing a parts column based on the parts column database (3). 2. In the balloon data creating step, the starting point of the lead line of each component is set to a predetermined specific coordinate in each component, and the end point of the leader line is on the center coordinate of the component assembly and an extension line connecting the starting points. The method of assigning a part number in an assembly drawing according to claim 1, wherein the setting is performed outside the occupied area of the part assembly.