JPH089276B2 - Dimension display of parts drawing of round parts Automatic drawing device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a device for automatically displaying a size of a part drawing, and more particularly, an automatic size display suitable for displaying inner circumference data of a front view of a round part. Regarding the drawing device.

[Conventional technology]

Traditionally, when outputting a part drawing to a terminal of a CAD system, if you want to display the required dimension data, you can add the dimension line to the drawing, how to extend the lead line, and at which position the dimension data It is up to the operator to decide whether or not to write out, and each operator performed the setting process by an interactive operation with the display screen.

[Problems to be solved by the invention]

However, in the conventional interactive operation, when the displayed object is a round part, there are a lot of unique fine data for the outer and inner parts of the part, and the side view shows the pitch for hole machining. And the processing of concentric circles are necessary, and the work itself is troublesome, and if you inadvertently export, the space between lines will become narrow and space will run out, or the lines will cross each other indiscriminately and the drawing will be difficult to see. However, since it has been necessary to start over from the beginning, this results in wasteful work, time and a great burden on the engineer, and the workability is significantly impaired.

The present invention was devised in view of such problems, and automatically determines and processes the position where the dimension line, the lead line, and the dimension data are described, thereby reducing the burden on the engineer and significantly improving the workability. An object of the present invention is to provide a self-imaging device for improving the dimension display of a part drawing of a round part.

[Means for solving problems]

In the present invention, as a means for solving the above problems, as shown in the basic structure of FIG. 1, a part drawing data of a round part including an aggregate of graphic elements and dimension data of the graphic elements is provided. A device for automatically displaying the dimensions of a part drawing of a round part output to a display means, which is an automatic drawing device for editing each graphic element on the inner circumference of the part drawing data from the left side of the drawing for each start point / end point. Based on the result, the left side drawing element setting section 2a that extracts only the drawing elements on the left side of the drawing, and the start point / end point right side editing section 1b that edits the remaining inner circumference figures for each start point / end point from the right side of the drawing Based on the result, the right drawing element setting unit 2b that extracts only the drawing element on the right side of the drawing
And an inner circumference drawing element setting unit that sets the inner circumference contour of the part separately from the drawing elements extracted by the left drawing element setting unit 2a and the right drawing element setting unit 2b into a horizontal dimension and a radial dimension. 2c and the horizontal dimension set by the inner circumference drawing element setting unit 2c based on the priority data on the dimension drawing, avoiding the interference between the dimension line and the leader line and the dimension data, and setting the horizontal dimension as the drawing data. The horizontal dimension drawing setting section 3 to be set and the dimension in the radial direction set by the inner circumference drawing element setting section 2c are distributed to either the left or right of the part graphic or the graphic, and the dimension line, the lead line and the dimension. A diameter dimension drawing setting unit 4 which is set as drawing data while avoiding data interference, a reference setting data memory 7 which registers preset data which is a setting reference for each setting unit,
A part drawing of a round part, comprising: an inner peripheral size drawing processing section 5 which integrates the horizontal size drawing data and the diameter size drawing data and outputs as a part drawing in which the size data is given to a predetermined display means. The size display is an automatic drawing device.

The part drawing data is downloaded from the upper CAD data 6, and the reference setting data 7 is set by the operator using the keyboard. The drawing data integrated by the inner circumference size drawing processing unit 5 is sent to a desired display unit 8.

[Action]

As shown in FIG. 2, the part drawing data is configured as an aggregate of graphic elements (for example, line segments) inside the part, but since the inside is not necessarily penetrated, the standard setting data is Based on the result, the left-hand drawing element setting unit 2a extracts only the drawing elements on the left side of the drawing, and the left-hand drawing element setting section 2a extracts each drawing element from the left side of the drawing based on the result. Edit each graphic element to the right and left of the start and end points 1b
Edits from the right side of the drawing for each start point and end point, and the right drawing element setting unit 2b extracts only the drawing element on the right side of the drawing. The inner circumference drawing element setting unit 2c forms the inner circumference of the part by combining both of them. When the drawing elements on the inner circumference are extracted, the horizontal dimension drawing setting unit 3 gives priority to avoid interference,
The drawing data is set in the horizontal dimension, and the diameter dimension drawing setting unit 4 sets the drawing data in the radial dimension while avoiding interference by allocating the display position to either the left or right of the component graphic or within the graphic. Then, the inner circumference dimension drawing processing unit 5 centrally outputs the dimension drawing data to the desired display means 8.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the embodiments and the drawings.

FIG. 3 is a block diagram showing an example of the configuration of the embodiment of the present invention. In FIG. 3, the parts drawing dimension display automatic drawing device includes the start point / end point left side editing unit 1a, the left side drawing element setting unit 2a, the start point / end point right side editing unit 1b, and the right side drawing element setting unit 2b. Circumference drawing element setting unit 2c, horizontal dimension drawing setting unit 3, diameter dimension drawing setting unit 4, inner circumference dimension drawing processing unit 5, CAD data memory 6, reference setting data memory 7, and keyboard The display 8 and its input / output port 8a, and a CPU 9 which controls them and which doubles as a central processing unit of a host device are roughly configured.

4 to 9 are flowcharts showing the operation procedure of the above apparatus. The inside of the apparatus shown in FIG. 3 will be described in more detail below according to the flow.

FIG. 4 is a procedure diagram showing an outline of the dimension drawing operation of the inner peripheral portion of the component. If the holes inside the parts do not penetrate, it is not possible to extract all the graphic elements inside by merely rearranging the graphic elements in order from the one on the left side. That is, the extraction of the graphic element stops at the closed hole. In the present invention, all graphic elements can be extracted by providing two types of editing sections, the start point / end point left side editing section 1a and the start point / end point right side editing section 1b, and the extracted figure element is the left side graphic element. Can be rearranged from the left end, and right graphic elements can be rearranged from the right end. That is,
When the command for dimension drawing is issued, as the second stage of the flow, the reference setting data 7 is first read into the left and right start point / end point editing sections 1a and 1b, and the left side start point / end point editing section 1a For a graphic element, the minimum side of the X coordinate value is defined as the starting point, the maximum side of the Y coordinate value is the starting point, and the maximum side of the X coordinate value is the ending point, and the minimum side of the Y coordinate value is defined as the end point.
The graphic elements of the data 6 are rearranged in order from the starting point on the left side. The opposite is true in the right side start point / end point editing unit 1b. Each edited graphic element is input to the left and right drawing element setting sections 2a and 2b.First, it is determined whether the graphic element of the CAD data that has passed through the start point / end point left side editing section 1a is the left graphic element. The graphic element data that does not correspond to the left graphic element is the start point / end point right edit part as the first step of the flow.
It is sent to 1b and is sorted in order from the end point on the right. It is determined whether or not the graphic element of the CAD data that has passed through the start point / end point right editing unit 1b is the right graphic element, and the graphic element data that does not correspond to the right graphic element ends the processing.

This operation is shown in more detail in the flowchart of FIG. That is, along with the definition of the start point and the end point, the center axis C of the inner circumference shown in FIG. 2 is set as Y = 0, and editing is started from the desired side (generally the left side) on either the left or right side. For example, from the left side, first set each graphic element to En (X) s> En.
(Y) s> En (X) e (that is, the starting point X coordinate value is small, the starting point Y coordinate value is large, and the ending point X coordinate value is small). twenty one
Then, the graphic element which is the leftmost X coordinate (Xmin) is extracted and set in the built-in register. Then, the positive graphic element En is extracted in the order closest to Y = 0, and the extraction element left / right determination unit 22 determines whether or not the starting point of the graphic element is equal to the leftmost X coordinate (Xmin) set in the register. . En (X)
If s = R (X), the extracted graphic element corresponds to the left side, and therefore the left drawing element extraction unit 23 determines whether or not there is a perpendicular line passing through the intersection in order to determine whether or not the hole is a non-penetrating hole. To examine and determine whether the diameter dimension, Y =
After examining the presence / absence of the target element for 0, the left drawing element type processing unit 24 sets the end point of the graphic element in the register.

On the other hand, when the extraction element left / right determination unit 22 determines that the left side does not correspond, and when there is no perpendicular line passing through the intersection (when it is not a hole), those graphic elements are input again to the start point / end point right side editing unit 1b. Each graphic element by En (X) e> En
(Y) e> En (X) s (that is, in descending order of end point X coordinate value, in descending order of end point Y coordinate value, and in descending order of start point X coordinate value), right extraction reference element setting unit At 25, the graphic element at the rightmost X coordinate (Xmax) is extracted and set in the internal register. And the right drawing element extraction unit
At 26, the positive graphic elements En are extracted in the order closest to Y = 0,
In order to determine whether it is a hole that does not penetrate, examine the presence or absence of a perpendicular line passing through the intersection, and to determine whether it is a diameter dimension,
After examining the presence or absence of the target element for Y = 0, the right drawing element type processing unit 27 sets the end point of the graphic element in the register. If it is judged that it does not correspond to the right side,
If there is no perpendicular line passing through the intersection, the processing ends.

The processing results of the left-side drawing element type processing unit 24 and the right-side drawing element type processing unit 27 are integrated by the inner circumference drawing element setting unit 2c and are divided into a horizontal dimension and a radial dimension, and a horizontal dimension drawing is performed. The setting process is performed by the setting unit 3 or the diameter dimension drawing setting unit 4.

The horizontal dimension drawing priority determination unit 31 determines the priority of the dimension drawing into three levels, and the three dimension data processing units 32, 33, and 34 respectively process the horizontal dimensions, and then the horizontal dimension drawing data setting unit. Integrally set in 35. The operator may set a desired standard in the standard setting data 7 for the priority, but normally it is preferable to refer to the drafting items of the Japanese Industrial Standard (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. First
The drawing process shall be prioritized in the order of necking, C chamfering and R chamfering shown in Fig. 10 (a) to (c). Judgment and avoidance processing of interference with the dimension line and NOTE data shall be performed before the drawing processing. carry out.

The second stage of the flow is the second drawing process for the horizontal dimension portion, the details of which are shown in the sub-flow of FIG. Second
The drawing process shall be prioritized in the order of O-ring groove, general groove, angle, small size, and vertical center line shown in Fig. 10 (d) to (h), and judgment and avoidance of interference with the size line and NOTE data. After performing the processing, the drawing processing is performed.

The third stage of the flow is the third drawing process of the horizontal dimension portion, the details of which are shown in the sub-flow of FIG. Third
In the drawing process, the dimension between the horizontal drawing elements is set according to the setting shown in the reference setting data 7 in advance, or the left reference drawing process as shown in FIG. 10 (i) or shown in FIG. 10 (j). Either the right reference drawing sled as described above or the reference drawing processing as shown in FIG. 10 (k) is used.

As for the diameter dimension, as the diameter dimension drawing processing which is the second stage of the flow, as shown in the sub-flow of FIG. It is judged whether it is on the left side or the right side, and further, the interference or approach of the lead line and the dimension line, NOTE is examined as shown in the flow, and depending on the result, the graphic left side drawing data processing unit 42 Then, the drawing data is processed by either the drawing data processing unit 43 in the figure or the drawing data processing unit 44 on the right side of the figure, and these are integrated by the drawing data setting unit 45 in the diameter dimension section.

Judgment and avoidance processing of the interference between the dimension line and the NOTE data in the stage, stage, and stage of the flow are performed as shown in the figure below. That is, in order to check the interference between the already drawn NOTE and the dimension line to be drawn, it is already drawn.
Memorize the writing position of NOTE, the number of characters, and the character height, and check if it interferes with the interference line to be drawn from now on. If it interferes, shift the dimension line by the predetermined reference value. If it still interferes, shift the dimension line by a predetermined reference value until it does not interfere. Further, in the second stage of the flow, the determination and avoidance processing of the approach of the lead lines, the approach of the lead line and the graphic element, and the approach of the lead line and the end face of the graphic element are performed as follows. That is, in order to check the interference between the drawn lines and graphic elements already drawn and the drawn lines to be drawn, the drawn lines and drawn elements already drawn are stored and do not interfere with the drawn lines to be drawn. If it interferes, shift the leader line by a predetermined reference value. If it still interferes, shift the leader line by a predetermined reference value until it does not interfere.

When the drawing data is set by the horizontal dimension drawing setting section 3 and the diameter dimension drawing setting section 4, the inner circumference dimension drawing processing section 5 further integrates them and outputs them to the display means 8. The output dimension drawing is sorted into the upper and lower sides of the outer periphery in each of the above steps, the horizontal elements are preferentially processed from the fine parts, and the radial elements are appropriately distributed to the left and right. Therefore, it is possible to automatically obtain a desired size in a display, a printer, etc., in an easy-to-see display without the operator's hand being affected.

〔The invention's effect〕

As described above, according to the present invention, it is suitable for the dimension display of the inner peripheral portion of the part drawing of the round part, and automatically determines and processes the position where the dimension line, the lead line, and the dimension data are described, It is possible to provide a device for automatically displaying the dimensions of a part drawing of a round part, which significantly reduces work load and significantly improves workability.

[Brief description of drawings]

FIG. 1 is a basic configuration diagram of the present invention, FIG. 2 is an explanatory diagram of a component diagram, FIG. 3 is a configuration diagram of an embodiment, FIGS. 4 to 9 are flowcharts of the embodiment, and FIG. It is an explanatory view of a drawing element. 1a: Start point / end point left side editing section, 1b: Start point / end point right side editing section, 2a: Left side drawing element setting section, 2b: Right side drawing element setting section, 2c: Inner circumference drawing element setting section, 3: Horizontal dimension drawing setting section , 4; Diameter dimension drawing setting section, 5; Inner circumference dimension drawing processing section, 6; CAD data, 7; Reference setting data, 8; Display means, 9; CPU.

Claims (1)

[Claims] 1. An automatic drawing device for displaying a part drawing of a round part, which outputs part drawing data of a round part consisting of a set of graphic elements and size data of the graphic element to a display means. Starting point / end point left side editing part that edits each graphic element on the inner circumference of the drawing data from the left side of the drawing by start point / end point, based on the result, left side drawing element setting part that extracts only drawing element on the left side of the drawing The start / end right side editing part that edits each graphic element on the inner circumference of the drawing from the right side by starting point / end point, the right side drawing element setting part that extracts only the drawing element on the right side of the drawing based on the result, and the left side drawing An inner circumference drawing element setting section that sets the inner circumference contour of the part separately from the drawing elements extracted by the element setting section and the right side drawing element setting section into a horizontal dimension and a radial dimension, and the inner circumference drawing element Water set in the setting section A horizontal dimension drawing setting unit for setting the dimension in the horizontal direction as the drawing data based on the priority data on the dimension drawing and avoiding the interference of the dimension line, the leader line, and the dimension data, and the inner circumference drawing element setting unit By allocating the radial dimension set in to either left or right of the part graphic or inside the graphic, avoid the interference of the dimension line and the leader line and the dimension data, and set it as the diameter dimension drawing setting section, A standard setting data memory that presets data for setting the setting standard of each of the setting sections, and the horizontal dimension drawing data and the diameter dimension drawing data are integrated and output as a part drawing in which the dimension data is given to a predetermined display means. An automatic image drawing apparatus for displaying a part drawing of a round part, which is provided with an inner peripheral size drawing processing unit.