KR910009239B1 - Method making data of numerical controller - Google Patents

Abstract

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Description

How to create processing data of numerical control device

1 is a flowchart showing an outline of data input and processing procedures in the present invention.

2 is a view showing a punching pattern selection screen of the present invention.

3A and 3B show the processing pattern definition screen A of the present invention.

4 is a diagram showing a processing pattern definition screen (B) of the present invention.

5A is a diagram showing a table using common data names as an example of the input format according to the present invention.

FIG. 5B is a plan view showing the input format of FIG. 5A. FIG.

6a, b, and c are flowcharts showing an outline of a machining point calculation of the present invention.

Fig. 7A is a plan view showing a processing example for explaining a data input method according to the present invention.

FIG. 7B is a cross-sectional view taken along the line A-A in the portion of FIG. 7A.

8A to 8D are plan views showing processing examples for explaining different data input methods, and FIG. 8A is a main surface showing all the processed holes, and FIGS. 8B to 8D show two processed holes, respectively. drawing.

9 is a flowchart showing an outline of a conventional data input processing method.

10 is a diagram showing data setting and display by CRT.

11 is a view showing a start screen of a processed tablet;

12 is a view showing a machining shape selection screen;

13 is a view showing a perforated shape selection screen;

14 is a view showing a puncturing definition screen.

15 is a view showing a conventional punching pattern selection screen.

16 is a view showing a conventional puncturing (arc) pattern definition screen;

Fig. 17 is a diagram showing a conventional puncturing (bolt hole) pattern definition screen.

18 is a view showing a processing cooperation list screen;

19 is a diagram showing an NC data output screen.

20A is a flowchart for explaining the calculation of the center position.

FIG. 20B is a diagram showing an example of X-Y coordinate input. FIG.

FIG. 20C is a diagram showing an example of R-θ coordinate input. FIG.

* Explanation of symbols for the main parts of the drawings

1: CRT display part 2: operation part

3: data input section 11: various data display section

12: echo data display unit 13: description and alarm information unit

201 to 208: echo switch unit 210: display unit

211: Parameter 212: NC Auxiliary

213: automatic program 214: up and down switch

301: alphanumeric, numeric data keys 302: input operation keys

304: Input Key 305: Auto Program Graphic Key

310: LED 1231 ~ 1238: Each reflection data

3201: Next screen key 3022: Cursor key

The present invention relates to a processing data generation method for an automatic program of a numerical control device applied to a machine tool, a robot, a laser processing machine, a welding machine, and an adhesive coating device.

The data input for the automatic program of the conventional numerical control device and its processing method are as follows.

FIG. 9 is a flow chart showing an outline of a conventional processing data generation method. FIG. 10 shows data settings when an operator interactively inputs data by operating an automatic program switch, a display switch, a parameter switch, an NC auxiliary switch, and the like. As explanatory drawing which shows the display part, the data displayed on the display part is observed.

As shown in FIG. 10, a CRT display unit such as a 14-inch color CRT has various data display units 11, echo data display units 12, and questionnaires and alarm information display units 3. As shown in FIG. In the following description, the content in quotation marks (″) is the name of the key switch.

The operation part 2 includes the reverberation switch group 201 to 208, the ″ indication ″ switch 210, the ″ parameter ″ switch 211, the ″ NC auxiliary ″ switch 212, the ″ automatic program ″ switch 213 And a ″ up and down ″ switch 214.

The data input unit 3 includes various data key groups, such as alphabetic and digital keys, an input operation key group 302 (″ ↑ ″ ″ → ″ ″ ↓ ″ and ″ → ″ cursor keys 3022, and ″ next screen ″ keys 3021). , An " automatic graphics " key 305, input keys 304, etc.) and LEDs 310 for operation readiness and NC alarm indication.

The CRT display unit 1 is a start screen (Fig. 11), a shape selection screen (Fig. 12), a shape selection screen (Fig. 13), a perforation shape definition screen (Fig. 14 degrees), perforation pattern selection screen (Fig. 15), perforation (arc) pattern definition screen (Fig. 16), perforation (bolt hole, circle) pattern definition screen (Fig. 17), machining process list screen (Fig. 18) And 70 or more screens are displayed as shown in FIG.

A conventional input processing method having an automatic program will be explained by the input processing for punching as shown in Figs. 7A and 7B.

FIG. 7A is a plan view showing the positions of the holes drilled in the workpiece, and FIG. 7B is a sectional view taken along the line A-A in FIG. 7A, showing the size in the height direction.

The input operation is executed by the flowchart of FIG.

For the sake of simplicity, the description will be made from step 7 assuming that steps 1 (automatic program start) to step 6 (graphical display) which are not directly related to the present invention are completed.

If the "Next Screen" key 3021 (FIG. 10) is pressed at the end of step 6, the current screen is replaced with the start screen of the processing well (FIG. 11). ″ 1. of echo data display section 12 (FIG. 10). Pressing the echo switch 201 (FIG. 10) corresponding to "Starting of the machining well" replaces the screen with the machining shape selection screen (FIG. 12).

7 is for drilling, ″ 1. Pressing the echo switch 201 (FIG. 10) corresponding to the puncturing " 1211 (FIG. 12), the screen is replaced with the puncturing shape selection screen (FIG. 13), and " 1. When the echo switch 201 (FIG. 10) corresponding to the puncturing " is pressed, the screen is replaced with the puncturing shape definition screen (FIG. 14).

According to the data displayed in the questionnaire section 13 (FIGS. 10 and 14), the data key 301 (FIG. 10) and the ″ input ″ key 304 (FIG. 10) operate to continuously answer the questionnaire. Is displayed. According to the displayed questionnaire, corresponding data is inputted with the key to complete setting of necessary data.

That is, the processing shape definition (step 7 of FIG. 9) is completed. Under these conditions, pressing the " next screen " key 3021 (FIG. 10) replaces the screen with the punching pattern selection screen (FIG. 15) corresponding to the machining position pattern definition in step 8. FIG. The punching position in FIG. 7 is set to " 1. " on the display screen 11 (FIG. 15). ″ 1. of the display screen 11 (FIG. 15). When the echo switch 201 (FIG. 10) corresponding to the arc " pattern 1231 is pressed, the screen is replaced with the perforated (arc) pattern definition screen (FIG. 16). The input of data is started by the screen shown in FIG.

″ 1. of the questionnaire group of the data display unit 11. As for the center position X = (), Y = () ″, the center position (a, b) is not specified in the screen (Fig. 7), so that the operator can directly or electronically Calculate the center position (a, b) using a calculator.

An example of arithmetic processing of a center position is demonstrated by FIG. 20 a-c. First, as shown in FIG. 20B, when the processing time points Xs, Ys, the processing end points Xe, Ye, and the radius Rn are input, it demonstrates according to the flowchart of FIG. 20a.

Existence of X and Y data (Step 2000): If yes, the following operation is performed.

| XL | is 0 or 2Rn? (Step 2002): NO surface 0 <| XL | <2Rn is maintained (step 2003), YES surface center positions a and b are machining start points (Xs and Ys), machining end points (Xe and Ye) and radius Rn. Is obtained by substituting for the following equation (step 2004):

After | XL | is determined to be zero in step 2002, | YL | is determined (step 2006). If | YL | is 0 <| YL | <2Rn, it moves to step 2004. That is, the above calculation is performed to find the center positions a and b. If | YL | = 2Rn is determined in step 2006, YL is determined to be greater than or less than zero (step 2008). If YL> 0, the center positions a and b are obtained by the following equation (step 2009):

If YL <0, the center positions a and b are obtained by the following equation (step 2010):

If | XL | = 2Rn is determined in step 2002, XL is determined to be greater than or less than zero (step 2011). If YL> 0, the center positions a and b are obtained by the following equation (step 2012):

If XL <0, the center positions a and b are obtained by the following equation (step 2013):

An error occurs because the conditions in the case where | XL |> 2Rn is determined in step 2003 and | YL |> 2Rn in step 2006 are not satisfied during the calculation (steps 2005 and 2007).

20C illustrates a case where the starting point coordinates and the ending point coordinates are displayed using distances Rs, Re, and angles θ _s and θ _e from the origin, respectively. If any one of the X and Y data is valid (step 2000), if ″ NO ″, it is determined that either of the R and θ data is valid (step 2014), and the X and Y data uses R and θ data. It is calculated by the following equation (step 2015).

After the operation, the process moves to step 2001 and the processing is performed as in the case of the X and Y data. If it is determined in step 2014 that there is no R,? Data, an error occurs since only the X, Y data and the R,? Data are processed.

The center position coordinates a and b obtained by the operation of FIG. 20A are inputted as the data key 301 (FIG. 10) and set as the &quot; input &quot; key 304 (FIG. 10).

After setting, in the data display section 11, the question section is provided continuously in the order listed therein. The data for each question portion provided is input using the data key 301 (Fig. 10) and set by the &quot; input &quot; key 304 (Fig. 10).

Final survey ″ 9. After the data input and setting for the questionnaire of the return position ″ are finished, the ″ automatic program graphic ″ key 305 (FIG. 10) is pressed to display a machining pattern graph.

Next, an error is found by comparing FIG. 7 with the displayed screen. Then, after confirming that there is no error included, when the &quot; next screen &quot; key 3021 (FIG. 10) is pressed, the puncturing pattern selection screen (FIG. 15) is displayed again (step 91 in FIG. 9).

As data is entered and set, ″ 8. When the echo switch 208 (FIG. 10) corresponding to the definition end &quot; 1238 is pressed, the processing definition start screen (FIG. 11) is displayed again while the definition definition list is displayed on the data display section 11. FIG. Check the error by comparing the list with the drawing (Fig. 7). After confirming there are no errors, see ″ 8. The echo key 208 (FIG. 10) corresponding to the end of the processing definition "1208 is pressed. As a result, step 71 and step 10 (FIG. 9) are executed in sequence to replace the screen with the machining step list screen (FIG. 18).

Step 11 (Fig. 9) is pressed when the ″ Next Screen ″ key 3021 (Fig. 10) is pressed while the final processing data of the list is displayed on the questionnaire section 13 by operating the cursor key 3022 (Fig. 10). ) Screen is replaced with the NC data forming screen (Fig. 19). Then the required program name, number of programs and ″ YES ″ for ″ NC data screen? ″ Are entered. As a result, NC data is operatively formed, and &quot; NC data creation complete &quot; is displayed on the questionnaire 13 (Fig. 10) to complete the operation. Pressing the &quot; next screen &quot; key 3021 for the next operation returns to first step 0 in step 12.

If the pitch or angle of the holes were drilled at irregular intervals, the data was previously entered and set as follows. That is, the first and second machining points are allocated to the first group (Fig. 8b) by the screen of the pattern definition (perspective) (Fig. 16), and the third and fourth processing points are the second group (Fig. 8c). The fifth and sixth processing points are assigned to the third group (Fig. 8d).

In the data input and setting method, the first group data of the machining point is defined by the above-described method (Fig. 9), the machining shape definition (step 7), the machining position pattern definition (step 8), and the graphic display (step 9). It is entered and set by executing. The operation is returned to step 8 via step 91, and data input and setting for the second group (Fig. 8C) of the machining point are started. Further, the machining position pattern definition (step 8) and the graphic display (step 9) are executed, and the operation returns to step 8 in step 91, and data input and setting for the third group of machining points (Fig. 8d) are started. . Then, the machining position pattern definition (step 8), graphic display (step 9), and step 9 are executed again, and data input and setting for all groups of machining points are completed in this manner. Steps 81 and 71 are executed and steps 10, 11 and 12 are executed as in the case described above to complete the operation.

In the case described above, steps 8, 9 and 91 are repeated three times for data input and setting. That is, in the drilled hole having the same diameter and depth, if the machining position pattern is not included in the menu, it is necessary to divide and input data on the diameter and depth. Therefore, it is necessary to repeat steps 8, 9 and 91 by the number of divisions.

The input format of the conventional numerical controller is configured as described above. Therefore, when the center position is not shown in the drawing, the operator calculates and inputs unknown data based on the installation position and dimensions shown in the drawing, or when the pitch or angle interval of the hole is irregularly located, Is assigned to a number of groups for entering. Therefore, there is a problem in data input and setting operation.

Therefore, the efficiency of program input operation is low. In addition, even if the machining operation is completed, if the calculated data is input, the machining operation is stopped until the numerical operation is completed.

The object of the present invention is to eliminate the problems caused by the data input setting method in the conventional numerical control apparatus described above, and to eliminate the need for manual calculation in inputting data of machining points arranged on an arc or circumference, and without processing. It is an object of the present invention to provide a method for creating a processing data of a numerical control device that can input data in a simple format without dividing the data into a plurality of groups.

According to the present invention, there is provided a processing data generation method of a numerical control device, comprising: a screen including a questionnaire for inputting processing data interactively with a display device, inputting a starting point and end point coordinates, and a center according to the inputted starting point and end point coordinates. Calculate the coordinates.

In addition, in the method of the present invention, in order to input an arc or a circumferential machining point, a screen including a questionnaire for inputting an arbitrary pitch angle is provided to calculate a machining point coordinate by the input pitch angle, Includes an arc and circle pattern on the punched pattern screen.

In addition, in the method of the present invention for designating the machining order, a screen including a questionnaire for inputting the positioning direction is provided to determine the machining order according to the input position direction or to designate a machining point. Prepare a screen including a questionnaire to enter the presence or absence of the processing point is calculated according to the presence of the input viewpoint processing.

In the method of the present invention, the center position is automatically obtained by the coordinates of the start point and the end point even when no center coordinate is input. And even if an arbitrary pitch angle is given, the coordinates are automatically improved according to the angle.

FIG. 2 is in FIG. 15 (conventional method). The punching pattern selection screen obtained by adding the bolt hole arc / circle pattern is shown. Additional display on the direction data display unit 12 (FIG. 10) regarding the puncturing pattern selection screen ″ 7. Activate echo switch 207 by adding a bolt hole arc / circle 1237.

3A and 3B show a perforation (bolt hole arc / circle) pattern definition screen A, which is shown in FIG. 16 (conventional method). Positioning direction CW / CCW ″, ″ 3. View coordinates ″, ″ 4. End point coordinate ″, ″ 5. Equivalent Split Points / Equivalent Split Angle ″, ″ 5a. Pitch angle ″, ″ 6. Whether there is a point of time processing ″ and ″ 8. This is obtained by adding the direction of the center coordinate.

4 shows the processing pattern definition screen B, which is shown in FIG. 17 (conventional method). Positioning direction ″ and ″ 5. It is obtained by adding the pitch angle.

4 is provided with sub-screens of FIGS. 3A and 3B. Third Questionnaire of Figures 3a and (b) ″ 3. By skipping the viewpoint coordinate &quot; input, the partial screens 3a and 3b are replaced with the fourth degree, and the data of the explanations 1 and 2 are input by the rest of FIG.

The fifth question of FIG. 3a ″ 5. Skip typing Equivalent Split Points / Equivalent Splitting Angles and the screen will display ″ 5a. Pitch angle &quot; and the pitch angle is freely input.

FIG. 5A is a table showing an example of an input format having a general data name, and FIG. 5B is a schematic diagram showing an example of the input format of FIG. 5A on a plane.

6A, 6B and 6C are flowcharts showing the operation procedure of data in step 11 of FIG.

An embodiment of the present invention will be described by the data input procedure for the puncturing operation as shown in FIG.

1 is a flowchart showing an outline of a data input and processing method of the embodiment. For simplicity of explanation, it is assumed that step 1 (automatic program start) and step 6 (graphical display) are achieved by the processing procedure.

Step 7 is the same as the conventional input method described above. In step 8, the machining position pattern definition is executed.

Pressing the "Next Screen" key changes the screen to the punching pattern selection screen shown in FIG. The drilling operation of FIG. 7 is referred to as &quot; 7. Corresponds to the bolt hole arc / circle. Therefore, ″ 7. When the echo key 207 (Fig. 10) corresponding to the bolt hole arc / circle &quot; is pressed, the screen is replaced with the perforation pattern definition screen A as shown in Fig. 3A. The screen starts inputting the puncturing data shown in FIG.

In the case of Fig. 7, since there is no coordinate data of &quot; (1) center position &quot;, data input in &quot; (2) Positioning direction &quot; is started. The data input order is the same as the conventional method described above.

(2) Positioning direction ----- Enter "CCW"

(3) Viewing coordinates ----- Input Xs, Ys

(4) End point coordinates ----- Enter Xe, Ye

(5) Equivalent split processing score / Equivalent split angle ----- Display only the number of holes

Therefore, N: 4 is inputted (when an equivalent dividing angle of 30 ° is indicated, A; 30 ° is input).

(6) presence or absence of viewpoint processing ----- Enter ″ 1 ″

(7) Radius ---- Enter ″ Rn ″

(8) Enter the center coordinate direction ----- ″ ↓ ″

(9) Enter the height of the surface ----- "Zn"

(10) Input height ----- "RZn" of R point

(11) input the first height ----- "IZn"

(12) Return height ----- Enter 2 = R point height

Thus, the machining position pattern definition (step 8) is achieved.

Pressing the &quot; automatic program graphics &quot; key 305 (Fig. 10) displays the machining pattern. The operator examines the error by visually inspecting the displayed pattern directly with respect to the figure (Fig. 7). After confirming that all data has been entered correctly, the operator presses the &quot; next screen &quot; key 3021 (FIG. 10), and the punch pattern selection screen shown in FIG. 2 is displayed again.

Under these conditions, ″ 8. Pressing the echo switch 208 (Fig. 10) corresponding to End of Definition &quot; 1238 again displays the processing definition start screen shown in Fig. 11 and simultaneously displays the definition definition list 110 on the data display section 11. Is displayed. Therefore, input operation of punched data in Fig. 7 is completed. Pressing the echo key 208 (FIG. 10) corresponding to END OF PROCESSING DEFINITION "(1208) (step 71 in FIG. 1) executes step 10 in FIG. 1 and replaces the screen with the machining process list screen (FIG. 18). do. Step 11 (FIG. 1) is executed by pressing the "Next Screen" key 3021 (FIG. 10) so that the final processing process data is displayed on the questionnaire data section 13 by the cursor key 3022 (FIG. 10). NC data creation is started and the screen is replaced with the NC data output screen (Fig. 19).

On the screen, when the program name and program number initially set in the input of the punching data according to FIG. 7 and the NC data creation OK are input, the creation of the NC data is started.

In the generation of NC data, since the embodiment requires data input different from the conventional method, data of a method different from the conventional method must be processed. Therefore, the coordinate calculation is executed before the processing (the description is omitted since it is not directly related to the present invention) by the conventional method (Fig. 6).

The data input by FIG. 7 is processed as follows by the flowchart shown in FIGS. 6A to 6C. In the following description, numbers in parentheses indicate step numbers and path numbers in the flowchart.

Start (100)-Enter center position (101): No (10102)-Start and end data (1011): Yes (10103)-X, Y data (1012): YES (10107)-Positioning direction (1016): Oil (10111)-Equivalent Split Processing Points / Equivalent Split Angle (105): Oil (10501)-View Processing (106): Play (10601)-Data Processing at Start Processing (107)- Radius 108: U (10801)-Direction of center position (109): U (10901)-Center position calculation subroutine (110)-Machining point coordinate calculation subroutine (111)-Conventional method The operation is performed in the same way as the processing flow.

Therefore, the center position and the machining point coordinates can be processed by the software of the numerical control device. Therefore, the center position calculation by the conventional manual calculation can be omitted. An example of the center position calculation processing sequence is provided in software and coupled to the center position calculation subroutine 110.

As another embodiment of the present invention, data input for a processing hole and a processing method thereof will be described as shown in FIG. 8A. The flow of processing is almost the same as shown in FIG. As in the case described above, assuming that the calculation of the data processing is accomplished before step 7 in the same manner as in the conventional method, the calculation is explained from the machining position pattern definition in step 8.

Pressing the &quot; Next Screen &quot; key 3021 (FIG. 10) replaces the screen with the punching pattern selection screen shown in FIG. 2, and the puncturing operation of FIG. Corresponds to a bolt hole arc / circle ". Therefore, the echo key 207 (FIG. 10) is set to &quot; 7. &quot; Bolt hole arc / circle &quot;, the screen is replaced with the punching pattern definition screen A shown in Fig. 3A. The perforation data shown in Fig. 8A is input by the screen. The data input order is the same as the conventional method described above.

(1) Center position--Enter Xa, Yb

(2) Positioning direction-input CCW

((3) Viewing coordinates--no, and therefore skipped, the screen is replaced with the puncturing pattern definition screen B shown in FIG. 4.]

(3) Radius--Enter Rn

(4) Start angle--Enter S

(5) Pitch angle-Input arbitrary V, loops of steps 83 and 8 of FIG. ₁ are executed, and P ₁ , P ₂ , P ₃ , P ₄ , P ₅ and P ₆ are input.

(6) coefficient--enter ″ 6 ″ (or skip input)

(7) Surface height--Enter Zn

(8) R point height--Enter RZn

(9) Initial Height--Enter IZn

(10) Return height --2 = Enter the R point height.

Therefore, the machining position pattern definition of step 8 is completed.

When the &quot; automatic program graphics &quot; key 305 (Fig. 10) is pressed, the machining pattern is displayed, so the operator checks the pattern for the part of Fig. 8A to check for errors in the data input operation. After confirming that all data has been correctly input, the operator presses the ″ Next screen ″ key 3021 (FIG. 10) to display the punching pattern selection screen again. The procedure up to step 10 is the same as in the above-described embodiment.

On the NC data output screen (FIG. 19), the program name, program label number, and NC data creation OK, which are initially set (step 2 in FIG. 1), are inputted to input the punch data of FIG. Begins.

The creation of NC data requires a data operation different from the conventional method. Therefore, the coordinate calculation is performed before the conventional process flow (omit the description since it is not directly related to the present invention) (Fig. 6).

The data entered with respect to FIG. 8A is processed as follows by the flowchart of FIG. That is, start (100)-center position input (101): existence (10101)-positioning direction (102): existence (10201)-view coordinate (103): nothing (10302)-radius (1031): U (10303)-Start Angle (1032): U (10304)-Pitch Angle C? (1033): NO (10310)-Pitch angle V? (1038): YES (103111)-P ₁ to P _n (1039): existence (10312)-process point calculation subroutine 1040--steps 10313 and 11101 to calculate coordinates.

Therefore, the data input operation that has been repeated three times in the data division mode before can be completed at once.

In addition to the above example (corresponding to (a) of FIG. 5A) of the tabular data input method in which the center position is omitted, various examples can be used as indicated by (b) to (h) of FIG. 5A. .

In this example, the following data is jointly input in the same manner as in the above-described embodiment.

Location direction: CW / CCW

Start Coordinates: Xs, Ys / θ _s , R _s , End Coordinates: Xe, Ye / θ _e , R _e , Machining Points / Equivalent Dividing Angle: Nn / An, With or without Machining: I / O, Radius: Rn, Direction: ← / → / ↓ / ↑

In the embodiment, although the X-Y coordinate system is used, the X-Z coordinate system of the Y-Z coordinate system may be used instead of the X-Y coordinate system. The processing is executed by the flowchart shown in FIG. 6 as in the later example described above in which ″ any pitch angle ″ can be entered instead of ″ processing score / equivalent division angle ″.

″ 5. of screen A (Fig. 3a) of the cloth process when the center position is not entered. If the equivalent division processing score / equivalent division angle &quot; is skipped, the screen shown in Fig. 3B is displayed and an arbitrary pitch angle is input.

In the above embodiment of the present invention, the display device is composed of a CRT (cathode ray tube), but a dot matrix display device may be used instead of the CRT.

The method of the present invention is applicable not only to machine tools, robots and laser processing apparatuses, but also to spot welders, arc welders, plug welders, gas blowers and adhesive applicators. For example, in a spot welding machine, the above embodiment of the present invention can be applied by considering a welding point as a machining position, and in the case of an adhesive table apparatus, a table position can be considered as a machining position.

As described above, according to the present invention, in the interactive input format for the numerical control device, the center position is omitted, and data for drilling a hole at an arbitrary division angle on the arc or the circumference can be input. Therefore, there is no need to manually calculate the center position, and there is no need to enter data in a split method. As a result, the number of interactive data input steps is reduced, thereby improving program input capability. It also reduces the frequency of machining operations during programming, which improves the operational efficiency of machine tools.

Claims (6)

A processing data preparation method for interactively inputting processing data into a display unit, the method comprising: means for continuously displaying a plurality of questionnaire sections relating to arcs or circumferences on a processing point and the processing points on the arcs or circumferences of the display unit; Means for arranging the center coordinates of the arc or the circumference based on the data input in response to the questionnaire, wherein the input data includes at least machining coordinates of the numerical control device including coordinates of the starting point and the ending point of the machining point. Way. In a processing data preparation method for inputting processing data interactively with a display unit, arcing on a processing point means means for continuously displaying a plurality of questionnaire sections about a circumference on the display unit, and the processing point on the arc or circumference of the display unit. And means for providing coordinates of the center position of the arc or the circumference by the data input in response to the questionnaire to be displayed, wherein the input data comprises at least an arbitrary pitch angle. The method according to claim 1, wherein the input data includes at least a positioning direction and the processing order is calculated by the inputted positioning direction. The method according to claim 2, wherein the input data includes a positioning direction, and the processing order is calculated by the inputted positioning direction. The method of claim 1, wherein the input data includes data for inputting the presence or absence of viewpoint processing in order to designate a machining point. The method according to claim 2, wherein said input data includes data for inputting the presence or absence of viewpoint processing in order to designate a machining point.

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