JPH05241644A - Numerical controller - Google Patents

Abstract

PURPOSE:To accurately measure the size of a work displayed in a picture regardless of the direction of a display coordinate axis. CONSTITUTION:A numerical controller 1 is provided with a graphic display means 11 for displaying the work and equipped with a scale display means 10 to display a scale parallel to the display coordinate axis and a scale moving means 9 to move the displayed scale in the direction of the display coordinate axis. Therefore, not only a graphic on a program but also the size of the machined work can be more correctly grasped, much information can be obtained, and accurate and precise numerical control is enabled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a numerical controller,
More specifically, the present invention relates to a numerical control device in which a ruler for indicating the size of a work can be displayed on the screen and moved.

[0002]

2. Description of the Related Art A conventional numerical control device is provided with a graphic display means for displaying a work on a screen, and a scale showing how much a certain width of the display screen is logical is displayed on a part of the screen. ing.

FIG. 13 shows an example of a screen of a conventional numerical control device. In this figure, 113 is a display screen, 114 is a display coordinate axis, 115 is a work, and 116 is a scale.
The scale 116 is parallel to the screen frame of the display screen 113. When the display magnification of the work 115 is changed, the numerical value indicated by the scale 116 is also changed in conjunction. Work 11
The approximate size of 5 can be known by comparing the work 115 and the scale 116.

FIG. 14 shows a screen example of a CAD / CAM device. In this figure, 117 is a display screen and 118 is a scale. This scale 118 is displayed on the display screen 117.
Is parallel to the screen frame of. The length of the side of the solid figure displayed on the display screen 117 is determined by rotating the solid figure,
If the side is displayed in parallel with the screen frame and compared with the scale 118, it can be accurately known.

FIG. 15 shows a display example of a moving scale in the "moving scale display method on a locus display screen" disclosed in Japanese Patent Laid-Open No. 64-82106. In this figure, 119 is a moving scale and 120 is a locus display screen. It is possible to read the distance on the axis parallel to the locus display screen 120 between any two points on the locus display screen 120 by the moving scale 119.

[0006]

The graphic displayed on the screen in the CAD / CAM device is a graphic drawn on the screen. Therefore, all the shape data are known, and it is easy to rotate the figure so that it is parallel to the scale.

However, in the numerical control device, the work 115 displayed on the screen is not drawn on the screen, but the position of the tool for machining the work 115 is plotted and the plotted points are connected. As a result, the tool trace is drawn on the screen. Therefore, only part of the shape data of the work 115 is known, and the work 115 cannot be rotated on the screen. That is, since the work 115 cannot be rotated to be parallel to the scale, there is a problem that the size of the work 115 is roughly known. This is disclosed in JP-A-64-8
The same is true for the technique disclosed in Japanese Patent No. 2106.

The present invention has been made in order to solve the above-mentioned problems, regardless of the direction of the display coordinate axes.
It is an object of the present invention to provide a numerical controller capable of accurately measuring the size of a work displayed on the screen.

[0009]

According to a first aspect of the present invention, there is provided a numerical control device equipped with a graphic display means for displaying a work, and a ruler display means for displaying a ruler parallel to a display coordinate axis. There is provided a numerical control device comprising: a ruler moving means for moving the displayed ruler in a display coordinate axis direction.

According to a second aspect, the present invention provides the numerical controller, in which the moving unit of the ruler is an integral multiple of the length unit.

According to a third aspect, the present invention is characterized in that, in the configuration of the first aspect, the unit for moving the ruler is provided with a ruler display means that is variable according to a display magnification of a graphic. Provide a control device.

According to a fourth aspect, the present invention is characterized in that, in the constitutions of the first to third aspects, it has a ruler display means for varying the display length of the ruler according to the display magnification of the graphic. To provide a numerical controller.

[0013]

In the numerical controller according to the first aspect of the present invention, by providing the ruler display means which functions in cooperation with the graphic display function, the ruler parallel to the display coordinate axes can be displayed on the graphic screen. It is possible to move the ruler parallel to the display coordinate axis. Therefore, even if you cannot rotate the orientation of the work on the screen,
The size of the work can be accurately measured by rotating the ruler.

In the numerical controller according to the second aspect of the present invention, the unit of movement of the ruler is set to an integral multiple of the length unit, thereby giving a proper width to the amount of movement of the ruler and performing fine adjustments that are too fine. By eliminating it, the ruler can be easily moved and arranged with respect to the workpiece to be measured.

In the numerical controller according to the third aspect of the present invention, since the unit of movement of the ruler displayed by the ruler display means changes according to the display magnification of the graphic, an appropriate width is given to the amount of movement of the ruler. By removing the fine adjustment that is too fine, the ruler can be easily moved and arranged with respect to the workpiece to be measured.

In the numerical controller according to the fourth aspect of the present invention, since the display length and scale of the ruler displayed on the ruler display means change according to the display magnification of the graphic, it is possible to display an appropriate and easy-to-measure ruler. ..

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an external view of a numerical controller 1 according to an embodiment of the present invention. 2 is a data input key, 13 is CR
T.

FIG. 2 is a block diagram of the main part of the numerical controller 1. Reference numeral 2 is a data input key for inputting data concerning a ruler, 3 is a display magnification processing means for processing the data inputted from the data input key 2 according to the display magnification of the work, and 4 is a scale unit calculation for calculating a scale unit of the ruler. Means 5 are display length calculation means for determining the display length of the ruler in accordance with the length of the work 15.

Reference numeral 6 is a display unit calculation means for determining the display unit of the ruler from the logical length of the work, and 7 is adjusted to the coordinate system (X-axis, Y-axis or Z-axis) of the display coordinate axes where the ruler is desired to be displayed. The coordinate system converting means for converting the display data of the ruler, the moving unit calculating means 8 for determining the length by which the ruler can be moved at one time, and the moving means 9 for performing the data processing when the ruler is moved.

Reference numeral 10 is a ruler display means for displaying a ruler of a specified shape at a specified position, 11 is a graphic display means for giving display data such as a work or a screen frame, 12 is a graphic display device for controlling screen display by the display data, 1
3 is a CRT.

FIG. 3 shows a screen example of the CRT 13. 17
Is a ruler. 18 is a display unit (in this case, mm) of the ruler. C is the ruler width, E is the ruler display length, G is the ruler display unit, and H is the ruler scale unit. F is the maximum width of the work 15. D is the maximum display width. C to H are all logical lengths.

In addition to the usual keys, the data input key 2 includes arrow keys ("→",) for moving the ruler 17.
“←”, “↓”, “↑”) and coordinate setting keys (“X”, “Y”, for setting the display coordinates of the ruler 17)
“Z”) and the like are provided.

4 to 11 show flow charts of the operation of the numerical controller 1. FIG. 4 is a flowchart showing the display magnification processing in the display magnification processing means 3.
First, the maximum display width (logical length) of the screen when the display magnification of the work 15 is "1" is displayed by the graphic display means 11
From (step S101). Then work 1
The display magnification B of 5 is input from the graphic display means 11 (step S102). Further, the maximum display width D (logical length) of the graphic screen is obtained from the maximum display width (logical length) input in step S101 and the display magnification B input in step S102 (step S103).

FIG. 5 is a flow chart showing the display unit calculation processing in the display unit calculation means 6. In this display unit calculation process, step S10 in the display magnification process is performed.
The display unit G of the ruler 17 is set from the maximum display width D (logical length) obtained in step 4 (step S105).

FIG. 6 is a flow chart showing the scale unit calculation processing in the scale unit calculation means 4. In this scale unit calculation process, step S10 in the display magnification process is performed.
The scale unit H of the ruler 17 is obtained from the maximum display width D (logical length) obtained in step 4 and the display unit G obtained in step S106 in the display unit calculation process (step S).
107). Further, by performing the coordinate system calculation process of step S117 shown in FIG. 8, the length of one scale (xm, ym) is calculated according to the coordinate system input by the data input key 2.
Is calculated (step S108).

FIG. 7 is a flow chart showing the display length calculation processing in the display length calculation means 5. In this display length calculation processing, the maximum width F (logical length) of the work 15 input from the data input key 2 in the coordinate system for displaying the ruler 17, that is, the width F (logical length) of the work 15 before processing is determined. (Step S110). Further, step S11
The display length E (logical length) of the ruler 17 is obtained from the maximum width F (logical length) of the work 15 obtained by 0 using the following formula (step S111). That is, when the operator that rounds down the decimal point of the solution in division is represented as \, the display length E (logical length) of the ruler 17 is: display length E (logical length) = maximum width F (logical length) of the work 15
Calculated by the display unit G + 1.

Next, by executing step S117 (see FIG. 8) in the coordinate system calculation process from the display length E (logical length) of the ruler 17 obtained in step S111, the coordinates input by the data input key 2 are displayed. The display length (xl, yl) is obtained according to the system (step S112).

FIG. 10 is a flowchart showing the rule display process and the move process in the rule display means 10 and the moving means 9. In the rule display process, the display unit G obtained in step S106 in the display unit calculation process, the length of one scale (xm, ym) obtained in step 109 in the scale unit calculation process, and step S113 in the display length calculation process. Display length (xl, y
Display rule 17 according to l). That is, display position (xs, ys) {however, display position (xs, ys)
Is used as the coordinate origin} (step S124).

Next, the ruler 17 in the graphic screen
The data for the portion displaying is stored in the memory (step S125). When the width of the ruler 17 is C, the size of the data is a rectangle having a height C whose base is the display position (xs, ys) to {display position (xs, ys) + display length (xl, yl)}. Becomes A rectangle serving as the base of the ruler 17 is drawn in the portion where this data is saved (step S126). Further, a scale line is drawn on the rectangle serving as the base of the ruler according to the scale length (step S1).
27). In this case, the scale part of the display unit G is drawn slightly longer than the other scales. In addition, the scale is drawn on one or both ends of the rectangle that is the base of the ruler. Set the scale value to 5
Each display unit is displayed slightly in the middle of the scale line (step S128). The display unit 18 is displayed in the center of the ruler for easy understanding.

Next, the case of moving the ruler 17 will be described. FIG. 9 is a flowchart showing the movement unit calculation processing in the movement unit calculation means 8. In this movement unit calculation process, the movement unit of the ruler 17 is first obtained. The moving unit of the ruler 17 is set to an integral multiple of the scale of the ruler. In this case, the movement unit of the ruler 17 is set to be the same as the scale unit H obtained in step S109 in the scale unit calculation process (step S118). Next, from the movement unit obtained in step S118, step S shown in FIG.
Using the coordinate system calculation processing of 117, the movement amount (dx, dy) of the ruler 17 with respect to the coordinate system displaying the ruler (17) input by the data input key 2 is obtained (step S119).

Next, the operation of the moving means 9 for moving the ruler 17 will be described with reference to FIG. FIG. 10 is a flowchart showing the moving process in the moving means 9.
First, before moving the ruler 17, the ruler 17 currently drawn is erased by overwriting the data stored in the memory in step S125 (step S121). Next, the moving amount (d) of the ruler 117 determined in step S120 in the moving unit calculation process
x, dy), and the current display position of the ruler 17 (x
s, ys) is obtained (step S122). Then, the movement position of the ruler 17 is set by the arrow key indicating the direction in which the ruler 17 input from the data input key 2 is moved (step S123). The display of the moved ruler 17 is displayed by the ruler display processing in the ruler display means 10. This rule display process is step S12.
It is performed from 4 to step S127.

Here, step S108 and step S1
12, the coordinate system calculation process of step S117 shown in FIG. 8 used in step S119 will be described.
First, the numerical value indicated by the logical length is input (step S114). Next, the value input in step S114 is converted into the number of dots N (step S115). Matrix A for projecting this number of dots N on two-dimensional coordinates
The ruler 17 entered from the data entry key 2 using
Is converted according to the coordinate system displaying (step S
116). The number of dots N is set in the X position if the coordinate system for displaying the ruler 17 input from the data input key 2 is X, in the Y position if Y, and in the Z position if Z. Anything other than the designated coordinate system is "0".

The matrix A will be described with reference to FIG. That is, when the value represented by the logical length is converted according to the coordinate system for displaying the ruler 17 input from the data input key 2, the definition of the coordinate system is performed as shown in FIG. Represented by. Object coordinates in the figure are coordinates parallel to x of two-dimensional coordinates, α represents an angle on the XY plane of the X axis with respect to this object coordinate, and β is YZ of the X axis with respect to this object coordinate.
It represents the angle on the plane.

[0034]

As described above, according to the numerical controller of the present invention, it is possible to display a ruler which is oriented parallel to a coordinate axis which is not parallel to the screen frame and which is movable along the axis. Therefore, the actual size of the work displayed on the screen can be measured regardless of the orientation of the display coordinate axes with respect to the screen frame. Therefore, not only the figure on the program but also the size of the machined work can be grasped more correctly, more information can be obtained, and the numerical control can be performed accurately and with high precision.

[Brief description of drawings]

FIG. 1 is an external view of a numerical controller according to an embodiment of the present invention.

FIG. 2 is a main block diagram of a numerical controller according to an embodiment of the present invention.

FIG. 3 is an exemplary explanatory view showing a ruler displayed on a screen.

FIG. 4 is a flowchart of display magnification processing means.

FIG. 5 is a flowchart of display unit calculation means.

FIG. 6 is a flowchart of a graduation unit calculation means.

FIG. 7 is a flowchart of display length calculation means.

FIG. 8 is a flowchart of coordinate system conversion means.

FIG. 9 is a flow chart of a moving unit calculation means.

FIG. 10 is a flowchart showing a rule display process and a moving process.

FIG. 11 is a flowchart showing a rule display process and a moving process.

FIG. 12 is an explanatory diagram of a coordinate system for converting a logical length into two-dimensional coordinates.

FIG. 13 is a CRT display image diagram of a conventional numerical controller.

FIG. 14 is a display image diagram of a scale in a CAD / CAM device.

FIG. 15 is a display image diagram of a moving scale disclosed in Japanese Patent Laid-Open No. 64-82106.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Numerical control device 6 Scale unit calculation means 8 Movement unit calculation means 9 Ruler movement means 10 Ruler display means 13 Display screen 14 Workpiece display coordinate axes 15 Workpiece 17 Ruler

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[Procedure amendment]

[Submission date] June 11, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0023

[Correction method] Change

[Correction content]

4 to 11 show flow charts of the operation of the numerical controller 1. FIG. 4 is a flowchart showing the display magnification processing in the display magnification processing means 3.
First, the maximum display width (logical length) of the screen when the display magnification of the work 15 is "1" is displayed by the graphic display means 11
From (step S101). Then work 1
The display magnification B of 5 is input from the graphic display means 11 (step S102). Further, the maximum display width D (logical length) of the graphic screen is obtained from the maximum display width (logical length) input in step S101 and the display magnification B input in step S102 (step S103). Shown here
What is the maximum display width?
m] (logical length).

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 4

[Correction method] Change

[Correction content]

[Figure 4]

Claims (4)

[Claims] 1. A numerical control device equipped with a graphic display means for displaying a workpiece, a ruler display means for displaying a ruler parallel to a display coordinate axis, and a ruler moving means for moving the displayed ruler in the display coordinate axis direction. A numerical control device comprising: 2. The numerical control device according to claim 1, wherein the moving unit of the ruler is an integral multiple of the length unit. 3. The numerical control device according to claim 1, further comprising: a ruler display means for changing the ruler movement unit according to the display magnification of the graphic. 4. The numerical control device according to claim 1, further comprising a ruler display means for varying the display length of the ruler according to the display magnification of the graphic.