JPH02277171A - Drawing producing device for parts drawing - Google Patents

Abstract

PURPOSE:To shorten the time required for production of a drawing by setting automatically the magnification of a detail drawing based on the setting range and the writing position of the detail drawing and setting an NC coordinate system in response to the writing position of the detail drawing. CONSTITUTION:The data D1 on a parts drawing and the data D2 on a drawing frame which are previously produced based on the data on an assembly drawing are stored in a storage 1. The data D1 is divided into the data on a detail drawing and the data on each parts, and a means 2 sets the range and the writing position of each parts based on the data on each parts. At the same time, the data on a proper drawing frame including the range of parts is selected out of the storage 1 by a drawing frame data selection means 3. Then a detail drawing magnification setting means 4 and an NC coordinate system setting means 5 set the magnification of the detail drawing and an NC coordinate system corresponding to the storage position of parts. A parts drawing layout means 6 lay out parts drawing on the set coordinate system. Furthermore a means 7 is added to point a position under production together with a means 8 which automatically fills a title column. As a result, an automatic layout operation is attained and the time required for production of a drawing is shortened.

Description

[Detailed Description of the Invention] [Summary] A drawing creation device for parts diagrams, in particular, a drawing of a parts diagram is created by automatically laying out the parts diagram in an appropriate drawing frame using a two-dimensional CAD system. Regarding technology, the aim is to automatically lay out each part diagram in the appropriate position without operator corrections, and to shorten the drawing creation time. , a storage means in which drawing frame data is stored; the data of the parts diagram is separated into data of each parts diagram including at least a detailed diagram and a schematic assembly diagram; and the existence range of each parts diagram is determined based on the separated data. means for setting an entry position for each part diagram; means for selecting appropriate drawing frame data that includes the set existence range of each part drawing from the storage means; and the set existence range and entry position for each detailed drawing. means for automatically setting the magnification of the detailed drawing based on the above, means for setting an NC coordinate system corresponding to the entry position of each of the parts drawings, and laying out each of the parts drawings on the set coordinate system. means for instructing the position of the parts diagram currently being created in the schematic assembly diagram among the laid out parts diagrams based on the data of the parts diagram; and a means for automatically filling in the title column based on the information.

[Industrial application field]

The present invention relates to a drawing creation device for parts diagrams, and more particularly to a technique for creating drawings of parts diagrams by automatically laying out parts diagrams in appropriate drawing frames using a two-dimensional CAD system.

In the field of mechanism design and mold design, dozens to hundreds of parts diagrams (drawings) are created for one assembly diagram.
There is a need for a method for creating parts diagrams (drawings) quickly and accurately. For this reason, we automatically create drawings of parts diagrams.
Although dimensional CAD systems are provided, there are many problems such as mismatch between the size of the created detailed drawing and the drawing frame, mismatch with the coordinate system for NC data, etc., and it is necessary to solve these problems.

[Prior art and problems to be solved by the invention]

FIG. 5 shows a conventional drawing creation process for a parts diagram, and FIG. 6 shows an example of a parts diagram created based on this process.

According to the processing form shown in FIG. 5, a database 52 storing information on each part diagram (front view, side view, etc.) generated by an automatic parts diagram generation process 51 from an assembly diagram information database 50 and a drawing A process of automatically laying out the drawing frame of the database 53 on the parts diagram of the database 52 and creating a drawing of the parts diagram using a two-dimensional CAD system equipped with a database 53 in which frame information is stored (
A drawing creation process 54) for parts diagrams is performed.

However, the layout of automatically created drawings is insufficient, the title field is left blank, the drawing does not match the coordinate system for NC data, etc., and therefore the layout of the drawing needs to be corrected 55 by the operator.

For example, in the case of the parts diagram shown in Figure 6, the operator must at least reduce the details so that they fit within the drawing frame, and fill in the title column. Work such as adjusting the layout and adding a coordinate system for NC data must also be done. This means that it is difficult to shorten the drawing creation time. In particular, when it is necessary to create a large number of parts diagrams (drawings) in the fields of mechanism design and mold design, this method is not preferable because it requires an even greater amount of correction man-hours for the operator.

The present invention has been created in view of the problems in the prior art, and is a drawing of a parts diagram that can automatically lay out each part diagram in an appropriate position without any correction by an operator, and further shorten the drawing creation time. The purpose is to provide a creation device.

[Means to solve the problem]

In order to solve the problems in the prior art described above, according to the present invention, as shown in the principle block diagram of FIG. A storage means l in which frame data D8 is stored, and the data of the parts diagram is separated into data of each parts diagram including at least a detailed diagram and a schematic assembly diagram, and the existence range of each parts diagram is determined based on the separated data. means 2 for setting the entry position of , means 3 for selecting from the storage means appropriate drawing frame data that includes the set existence range of each part diagram, and the set existence range of each detailed diagram. means 4 for automatically setting the magnification of the detailed drawing based on the entry/position; means 5 for setting the NC coordinate system in correspondence with the entry position of each part drawing; means 6 for laying out each parts diagram; means 7 for instructing the position of the parts diagram currently being created in the schematic assembly diagram among the laid out parts diagrams based on the data of the parts diagram; There is provided a drawing creation device for parts diagrams, characterized by comprising means 8 for automatically filling in a title block based on data and drawing frame data.

[Effect]

According to the above-mentioned configuration, in each means 3.4.5 and 8, each part diagram is processed so as to fit within the drawing frame, the magnification of the detailed diagram is automatically set, and the entry position of each part diagram is Correspondingly, the NC coordinate system is set and the title field is automatically filled in. Therefore, each method avoids the inconvenience of each part diagram protruding from the drawing frame, and achieves an overall well-balanced layout.
It can be used as a consistent CAD/CAM drawing, and no complicated processing is required. In other words, it is possible to automatically lay out each part diagram within an appropriate drawing frame without making any corrections by the operator, so that the drawing creation time can be shortened.

Note that other structural features and details of the operation of the present invention will be explained using the embodiments described below with reference to the accompanying drawings.

(Embodiment) FIG. 2 shows an example of the configuration of a CAD system to which the present invention is applied.

In the figure, 11 is a central processing unit (CPU) that executes drawing creation processing for parts diagrams, 12 is a memory for storing programs that specify the processing to be executed by the CPU, and 13 is assembly drawing data and drawings. A file memory 14 is used to store frame data, parts diagram data created based on CPU Ull processing, and parts diagram drawing data; 15 is a graphic display such as a CRT that visually displays data as necessary; 15 is a printer that outputs the drawing (data) of the parts diagram stored in the memory 13;
Reference numeral 6 indicates a keyboard used to start up the CPU II or output a created part diagram to the printer 15, and 17 indicates a system bus that connects the above-mentioned devices.

Next, the drawing creation process of the parts diagram performed by the CPU II in FIG. 2 will be explained with reference to the flowchart in FIG. 3.

First, in step 21, the assembly drawing information database 13
a (partial area of the memory 13) to each part diagram (front view,
side view, plan view, detailed drawing, and schematic assembly drawing), and each generated part drawing is stored in the parts drawing information database 13.
"b" and stores it in some other area of the memo January 3.

In the next step 22, the parts drawing information database 13
The data of each part drawing (front view, side view, plan view, detailed drawing, and schematic assembly drawing) from b to each area (v.

W, X, Y, Z).

In the next step 23, each part diagram (
front view, side view, plan view, detailed view and schematic assembly view), i.e. minimum (x, y) and maximum (x,
Find y).

In the next step 24, the drawing frame information database 13
The drawing frame data of the user-specified size is retrieved from C (another part of the memory 13), and each part drawing (front view, side view, top view, detailed drawing, and schematic assembly drawing) and title column are filled in. Set the position and compare the size of the drawing frame with the size of each part diagram to check whether the size is appropriate. If the drawing frame is inappropriate as a result of the check,
Drawing frame information database 13 for drawing frames of appropriate size
Select again from c.

In the next step 25, the magnification of the detailed view is automatically set based on the entry position of the detailed view in the drawing frame and the existing range of the area Y corresponding to the detailed view.

In the next step 26, an NC coordinate system is set corresponding to the entry position of each part diagram (front view, side view, top view, detailed view, and schematic assembly view).

The setting method is to use the reference position (processing origin) of each part diagram laid out in each entry position range of °ζ in the drawing frame as the coordinate origin, and create a coordinate system in a direction that matches each drawing.

In the next step 27, by writing the data of each area (v, w, x, y, z) on each NC coordinate system, each part view (front view, side view, top view, detailed view) and schematic assembly drawings).

In the next step 28, the parts diagram information database 13
The position of the parts diagram currently being created is searched from b, and based on the search, the position is indicated by blacking out the parts diagram in the schematic assembly drawing.

In the next step 29, the drawing frame information database 13
The entry position of the title field is determined from c, and the entry content of the title field is determined from the parts diagram information database 13b, and the title field is automatically filled in.

The drawing (data) of the parts diagram created based on the processing from steps 21 to 29 explained above is stored in the drawing file 13.
d in another part of the memory 13. In step 30, the drawing (data) of the parts diagram in the drawing file 13d is outputted to the printer 15 as necessary.

FIG. 4 shows an example of a parts diagram created based on the process described above.

The illustrated example shows a case where a front view, right side view, detailed view, and schematic assembly drawing are created in one drawing as a parts diagram. Indicates the location of the parts diagram inside.

In this way, according to this embodiment, ■ step 24 in FIG.
Since the size of the drawing frame and the parts diagram is checked, it is possible to avoid the inconvenience of each part diagram protruding from the drawing frame. ■In step 25, the magnification of the detailed diagram is automatically set. ■ Since the coordinate system for °ζNC is set in step 26, it can be used as a consistent CAD/CAM drawing.■ In step 29, the title column is automatically filled in. Therefore, complicated processing is unnecessary. In other words,
Since each part diagram can be automatically laid out within an appropriate drawing frame without modification by an operator, the drawing creation time can be shortened.

In the above-described embodiment, the process of automatically filling in the title field (step 29) was performed at the last stage of the drawing creation process for parts diagrams, but this can be done at any stage after step 24. You may also do this using

〔Effect of the invention〕

As explained above, according to the present invention, there is no need for the operator to correct the layout of drawings, so this is particularly useful when it is necessary to create a large number of drawings of parts in the field of mechanism design, mold design, etc. , the time required to create the drawings can be significantly reduced. Also, the drawing of the parts diagram is NG.
It is created in a coordinate system of can.

[Brief explanation of drawings]

Fig. 1 is a principle block diagram of a drawing creation device for parts diagrams according to the present invention, Fig. 2 is a diagram showing an example of the configuration of a CAD system to which the present invention is applied, and Fig. 3 is a process performed by the CPU in Fig. 2. FIG. 4 is a flowchart showing an example of a drawing of a parts diagram created based on the process shown in FIG. 3, FIG. 5 is a diagram showing an example of a drawing of a parts diagram created based on the process shown in FIG. 5. FIG. (Explanation of symbols) 1... Storage means, 2... Data separation and position/size setting means for each part drawing, 3... Drawing frame data selection means, 4... Magnification setting for detailed drawings Means, 5... Means for setting the NC coordinate system, 6... Means for laying out the parts diagram, 7... Means for instructing the position of the parts diagram currently being created, 8
...Automatic entry means for the title column, Dl...Data for parts drawings, D2...Data for drawing frames.

Claims (1)

[Scope of Claims] A storage means (1) storing parts diagram data (D_1) and drawing frame data (D_2) generated in advance based on assembly diagram data; and the parts diagram data. means for separating the data into data of each parts diagram including at least detailed drawings and schematic assembly drawings, and setting the existence range and entry position of each parts diagram based on the separated data (
2); means (3) for selecting appropriate drawing frame data from the storage means that includes the set existence range of each part diagram; and based on the set existence range and entry position of the detailed diagram. means (4) for automatically setting the magnification of the detailed drawing; means (5) for setting an NC coordinate system corresponding to the entry position of each of the parts drawings; means (6) for laying out a parts diagram; means (7) for instructing the position of the parts diagram currently being created in the schematic assembly diagram among the laid out parts diagrams based on the data of the parts diagram; 1. A drawing creation device for a parts diagram, comprising means (8) for automatically filling in a title column based on data of the parts diagram and data of a drawing frame.