JPH0462099B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an automatic dimension display drawing device for parts drawings, and in particular to an automatic dimension display drawing device suitable for displaying outer circumference data of a front view of a round part. Regarding equipment.

[Conventional technology]

Conventionally, when outputting a part drawing to a CAD system terminal, if you want to display the required dimensional data, you have to know where to add dimension lines to the drawing, how to extend leader lines, and where to display the dimensional data. It was up to the operator to decide whether to write out the information or not, and the writing operator performed the setting process by interacting with the display screen.

[Problem that the invention seeks to solve]

However, in conventional interactive operations, when the displayed object is a round part, there is a lot of unique minute data on the outer and inner parts of the part.
In addition, side views require processing of pitches and concentric circles for hole machining, which is a tedious process, and if you write out carelessly, the line spacing becomes narrow and there is no space, or the lines are drawn together randomly. Sometimes the drawings become difficult to read because of the intersection, and they have to start over from the beginning, which results in unnecessary effort, time, and a huge burden on the engineers, which significantly impairs work efficiency.

The present invention was devised in view of these problems, and automatically determines and processes the writing positions of dimension lines, leader lines, and dimension data, thereby reducing the burden on engineers and significantly improving work efficiency. It is an object of the present invention to provide an automatic drawing device for displaying dimensions of parts diagrams that improves performance.

[Means for Solving the Problems] In the present invention, the means for solving the above problems are as follows: As shown in the basic configuration of FIG. A part drawing dimension display automatic drawing device that outputs dimensional data attached to a parts drawing along with figures, the part drawing comprising: a starting point/end point left side editing section for editing each graphical element of the parts drawing data by starting point and ending point; A drawing element setting section that extracts drawing elements by sorting the start and end points of each graphic element according to the upper and lower positions of the reference on the drawing, and sets horizontal dimensions as drawing data based on priority data for dimension drawing. A horizontal dimension drawing setting section, and a radial dimension drawing setting section that allocates the radial dimension to either the left or right side of the part shape or within the figure and sets it as drawing data, are set in advance and serve as setting standards for each of the setting sections. It is equipped with a standard setting data memory for registering data, and an outer circumferential dimension drawing processing unit that integrates the horizontal dimension drawing data and the radial dimension drawing data and outputs it as a parts diagram with dimension data added to a predetermined display means. The present invention is characterized by an automatic drawing device for displaying dimensions of part drawings of round parts.

Note that the parts drawing data is downloaded from the upper CAD data 6, and the reference setting data 7 is set by the operator using the keyboard. Further, the drawing data summarized by the outer circumferential dimension drawing processing section 5 is sent to a desired display means 8.

[Effect]

As shown in FIG. 2, the parts diagram data is composed of the inside of a part as a collection of graphical elements (for example, line segments), and the starting point/end point left side editing section 1 edits the starting point/end point of each graphical element. The end point is edited separately for the start point and end point by referring to the reference setting data, and the drawing element setting section 2 sets them as the reference line on the drawing (for example, the center axis C).
The upper and lower contours E ₈ to E ₁₄ and the lower contour E ₁ are drawn from each geometric element.
~E ₇ together to form the outer periphery of the part. When the outer circumference drawing elements are extracted, the horizontal dimension drawing setting section 3 sets drawing data in the horizontal dimension while avoiding interference by giving priority, and the radial dimension drawing setting section 4 sets the drawing data in the display position. The drawing data is set in the radial dimension while avoiding interference by distributing the data to either the left or right side of the part figure or within the figure, and the outer circumferential dimension drawing processing unit 5 centralizes these dimension drawing data to display the desired display. Output to means 8.

〔Example〕

Hereinafter, the present invention will be explained in detail with reference to examples and drawings thereof.

FIG. 3 is a block diagram showing one example of the configuration of an embodiment of the present invention. In FIG. 3, the parts drawing dimension display automatic drawing device includes the starting point/end point editing section 1.
, drawing element setting section 2, horizontal dimension drawing setting section 3
, a diameter dimension drawing setting section 4, an outer circumferential dimension drawing processing section 5, a CAD data memory 6, a standard setting data memory 7, a display with a keyboard 8 and its input/output port 8a, and controls them. The CPU 9 also serves as the central processing unit of the host device.

4 to 11 are flowcharts showing the operating procedure of the above device. Hereinafter, the inside of the apparatus shown in FIG. 3 will be explained in more detail according to the flow.

FIG. 4 is a procedure diagram showing an outline of the dimension drawing operation of the outer peripheral portion of the component. When a dimension drawing command is issued, as the first stage of the flow, the reference setting data 7 is first read into the start point/end point editing section 1.
The starting point is the side with the minimum X coordinate value and the side with the maximum Y coordinate value for each graphic element, and the end point is the side with the minimum Y coordinate value on the side with the maximum X coordinate value, and the CAD data 6 The graphical elements are rearranged in order from the starting point on the left side. Each edited graphical element is input to the drawing element setting unit 2, and based on each criterion set in the extraction standard element setting unit 21, the lower drawing setting of the flow stage and the upper drawing setting of the flow stage are set. The settings are made.

The lower side drawing setting is carried out in the lower side drawing element extraction section 22 according to the operating procedure shown in the flowchart of FIG. That is, as shown in FIG. 2, the leftmost graphic element En (n=1) is first extracted, and then the next lower graphic element En is extracted counterclockwise.
(n=n+1), compares the two graphic elements, and if there is no intersection between them, then compares the next graphic element, and if there is no intersection between them, then the next graphic element En Read (n=n+1). If there is an intersection, check that the end of the graphic element En in the previous stage matches the beginning of the graphic element En+1 in the subsequent stage, and if they do not match, the graphic elements E2 and E3 are
This is used when the graphic element extends counterclockwise, as in Each graphical element is sequentially extracted, and when the rightmost graphical element E7 is reached, the lower drawing settings are completed.

The upper drawing settings are performed in the upper drawing element extraction unit 23 according to the operating procedure shown in the flowchart of FIG. 6, and as shown by figures E8 to E14 in FIG. It is almost the same except that it is changed to , but the difference is that the search for the next element is performed clockwise. The drawing settings for the lower side and the upper side are integrated in the outer periphery drawing element setting section 24.

Each set drawing element is divided into a horizontal dimension and a radial dimension, and setting processing is performed in the horizontal dimension drawing setting section 3 or the radial dimension drawing setting section 4.

The horizontal dimension is determined by the horizontal dimension section drawing order determination section 31
So, the priority order of dimension drawing was determined into three levels, and 3
After being processed by the three dimension data processing sections 32, 33, and 34, the horizontal dimension drawing data setting section 3
5 is set in an integrated manner. The priority order may be determined by the operator setting the desired standard in the standard setting data 7, but it is usually preferable to set the priority by referring to the drafting items of the Japanese Industrial Standards (JIS).

The first stage of the flow is the first drawing process for the horizontal dimension portion, the details of which are shown in the sub-flow of FIG. In the first drawing process, priority is given to netting, C chamfering, and R chamfering in the order shown in FIGS. .

The second stage of the flow is a second drawing process for the horizontal dimension portion, the details of which are shown in the flowchart of FIG. In the second drawing process, priority is given to the O-ring groove, general groove, angle, small dimension, and vertical center line shown in Figure 12 d to h, and dimension lines and NOTE
After determining interference with the data and performing avoidance processing, image creation processing is performed.

The third stage of the flow is the third drawing process for the horizontal dimension portion, the details of which are shown in the sub-flow of FIG. The third drawing process sets the dimensions between the horizontal drawing elements according to the settings shown in the standard setting data 7 in advance, and either the left reference drawing process as shown in FIG. 12i or the left reference drawing process as shown in FIG. 12j. The processing is performed by either the right reference drawing process as shown in FIG. 12 or the reference drawing process as shown in FIG. 12k.

On the other hand, the diameter dimension is determined by the sub-processing shown in Fig.
As shown in the flow, the upper and lower drawing element type processing unit 41 compares the symmetrical parts of the upper drawing element and the lower drawing element, and determines whether the result is symmetrical, one side is short, or one side is missing. After sorting, the upper and lower drawing element type setting section 42 sets diameter dimension lead lines.

In addition, as for the diameter dimension, as shown in the sub flow of FIG. 11, as the diameter dimension drawing process which is the first stage of the flow, the drawing element is set from (Xmax-Xmin)/2 in the diameter dimension section drawing direction setting section 43. After determining whether the drawing line is on the left side or the right side, and considering the interference or proximity between the leader line, the dimension line, and NOTE as shown in the flow, depending on the result, the figure left side drawing data processing unit 44, Figure internal drawing data processing section 4
5. Perform drawing processing in one of the figure right side drawing data processing sections 46 and integrate them in the diameter section drawing data setting section 47.

When the drawing data is set in the horizontal dimension drawing setting section 3 and the diameter dimension drawing setting section 4, the outer circumferential dimension drawing processing section 5 further integrates them and outputs them to the display means 8. The output dimensional drawing is divided into upper and lower periphery in each of the above steps, horizontal elements are processed preferentially starting from the smallest parts, and vertical elements are appropriately distributed to the left and right. Desired dimensions can be automatically displayed in an easy-to-see manner on a display, printer, etc. without troubling the operator's hands.

〔Effect of the invention〕

As described above, the present invention is suitable for displaying the dimensions of the outer peripheral part of a part drawing of a round part, and automatically determines the writing position of dimension lines, leader lines, and dimension data, and allows engineers to It is possible to provide an automatic drawing device for displaying dimensions of parts diagrams that reduces burden and significantly improves work efficiency.

[Brief explanation of the drawing]

Figure 1 is a basic configuration diagram of the present invention, Figure 2 is an explanatory diagram of parts diagrams, Figure 3 is a configuration diagram of an embodiment, Figures 4 to 11 are flowcharts of the embodiment, and Figure 12. is an explanatory diagram of drawing elements. 1: Starting point/end point left side editing section, 2: Drawing element setting section, 3: Horizontal dimension drawing setting section, 4: Diameter dimension drawing setting section, 5: Perimeter dimension drawing processing section, 6: CAD data, 7: Standard setting data .

Claims (1)

[Scope of Claims] 1. An automatic parts drawing dimension display drawing device that outputs dimension data attached to a parts drawing of a round part configured as a collection of graphical elements together with the figure, comprising: the part drawing data; a starting point/end point left side editing section that edits each graphical element by starting point and ending point; a drawing element setting section that extracts drawing elements by sorting the starting point and ending point of each graphical element according to the upper and lower positions of a reference on the drawing; A horizontal dimension drawing setting section that sets horizontal dimensions as drawing data based on priority data for dimension drawing, and a horizontal dimension drawing setting section that sets radial dimensions as drawing data by distributing them to either the left or right of the part shape or within the shape. a diameter dimension drawing setting section; a reference setting data memory for registering data set in advance and serving as setting standards for each of the setting sections; 1. An automatic drawing device for displaying dimensions of a part diagram of a round part, comprising: a peripheral dimension drawing processing unit that outputs a part diagram with data added thereto.