JPH0314005A - Interactive nc program generating method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of creating an NC program in an interactive manner using a display.

[Prior Art] In an NC machine tool, in order to machine a workpiece into a desired shape, an NC program is created and loaded into the machine tool to machine the workpiece.

However, creating the NC program is a troublesome task and requires specialized knowledge of programming.

Therefore, recently, simple interactive NC machine tools have been developed that allow even people without specialized or mathematical knowledge of NC programming to automatically create NC programs by simply inputting the drawing dimension data of the desired workpiece shape. is being developed. A specific method for creating the NC program will be described below.

That is, as shown in FIG. 13, the operator calls up a data input screen on which guidance indicating a desired shape is displayed. Then, for this data input screen, based on the drawing dimensions, the reference point X, reference point Y, horizontal length, vertical length,
Create a program by simply inputting the number of six pieces, etc.

Alternatively, as shown in FIG. 14, programming of contour machining for milling that does not apply to a pre-prepared shape is performed as follows.

When creating a program to process a workpiece into the shape shown in Figure 14, as shown in Figure 15,
The shape is defined by a starting point, a straight line (NO, 1 to N0.6), a corner R, etc. Therefore, a screen as shown in FIG. 16 is called up on the display and starting point position data is input. Next, a screen as shown in FIG. 17 is called up on the display, and data for the straight lines of NO and 1 are input.

In this way, data is input in sequence, and as shown in FIG. 18, the input of data for the desired shape is completed.

[Problems to be Solved by the Invention] Such conventional program creation methods are aimed at simple input operations, and therefore the figures that can be input in this way are limited to simple ones. However, many of the actual workpieces that need to be machined require pre-calculation of auxiliary points such as the center of a circle and reference coordinates, so conventional program creation methods cannot be used to It cannot handle machining of workpieces.

Therefore, if it were possible to input such auxiliary points interactively, the input operation would become complicated, and the original goal of allowing anyone to input them easily would be lost.

In view of the problems with conventional program creation methods, the present invention aims to provide an interactive NC program creation method that allows anyone to easily input auxiliary points such as the center of a circle and reference coordinates. .

[Means for Solving the Problems] The present invention provides a method for creating an NC program in an interactive manner using a display, in which data is used to set conditions regarding tools to be used or to set the machining shape of a workpiece. Call up the input screen on the display,
When inputting each data using the data input screen, a data calculation menu is called up on the display by the data calculation instruction means, a predetermined calculation menu is selected from the menu, and the predetermined calculation screen is called on the display. This is an interactive NC program creation method in which the predetermined calculation is executed and stored using the screen, and the execution result data is input using the data input screen.

[Operation] In the present invention, when inputting each data using the data input screen, a data calculation menu is called up on the display by the data calculation instruction means, a predetermined calculation menu is selected from the menu, and the predetermined Since a calculation screen is called up on the display and predetermined calculations are performed using that screen, data can be easily obtained and input without any special mathematical knowledge.

[Examples] Examples of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an NC machine tool for executing an embodiment of the interactive NC program creation method according to the present invention.

In the figure, a CRT display 1 is a display means for displaying a screen for inputting data of a target shape, a screen for executing a predetermined calculation, and the like. The operation panel 2 is a console equipped with keys and the like for inputting data or selecting calculation menus. These CRT display l and operation panel 2 are CP
It is connected to U (central processing unit) 3. The interaction control unit 4 is a means for controlling the CPU 3 and the ROM 5 or magnetic disk 6 that stores various data, programs, etc. necessary for an operator to create an NC program in an interactive manner. Further, the NC control section 7 is a control section for controlling the machine 10 for processing a workpiece based on the NC program created in this way, and is connected to the CPU 3. ROM8. RAM9
is a memory that stores programs and data for performing such processing.

FIG. 2 shows a screen on the display l during which the operator is inputting data on the desired workpiece shape 11 in an interactive manner.

This input operation is the same as the conventional method.

Therefore, if you want to calculate the coordinates of a given auxiliary point, etc., use the function key (data calculation instruction means) corresponding to the calculation part of the pop-up menu at the bottom of the screen.
Press.

As a result, a calculation menu screen is displayed on the display 1, as shown in FIG. On the same screen,
A calculation menu of 0 to 15 types is displayed, and when a predetermined calculation is selected with the cursor, a guidance diagram corresponding to the content is displayed in a corner of the screen. In Figure 3, 1
This is the case where the calculation of the number is selected, and a guidance diagram for calculating the trigonometric function is displayed. Figure 4 shows 4
This is a calculation screen for determining the coordinate data of the intersection or contact point of the circle C and a parallel line that is distanced from the straight line when the calculation of the number is selected.

For example, if calculation No. 4 is required, place the cursor on the calculation and press the write key (WR) to display the calculation screen as shown in FIG.

Enter the necessary data according to the contents of the calculation screen. That is, input data by defining a straight line, defining a circle C, and defining a distance.
When the execution key is pressed, the coordinate data of the intersections Pi and P2 are automatically calculated and the calculation results are displayed at the bottom of the screen.

Note that by performing the above definition, the guidance diagram displayed on the screen is changed to a guidance diagram for dimensioning according to the data.

Once the calculation results have been obtained in this way, pressing the return soft key 13 returns to the calculation menu screen shown in FIG. Furthermore, when the return soft key is pressed, the screen returns to the shape data input screen shown in FIG. Note that the above-mentioned calculation result data (Xl=...yt=...) is displayed at the bottom of the screen that is finally returned. The data is input by pressing the write key (WR).

Note that if the required data cannot be obtained by calculating -degrees, press the return key as described above, and when the screen returns to the calculation menu screen, select further necessary calculations. Then, obtain the necessary data as described above. The calculation result is, for example, X2=...
It is displayed as Y2=... Therefore, it can be distinguished from the previously obtained calculation results. Furthermore, the calculation results obtained in this manner can be displayed in list form on the screen as shown in FIG.

Next, the present invention will be described in detail by taking a specific workpiece shape as an example.

FIG. 7 is a drawing showing the shape to be machined.

Assume that processing is performed in the direction from ■ to ■.

First, the operator calls up an interactive menu screen as shown in FIG. Then, the user selects the number of the arbitrary contour file menu with the cursor and inputs an arbitrary file name. In the illustrated embodiment, CAM is input. As a result, a screen for inputting the coordinate data of the starting point (2) as shown in FIG. 9 is displayed, and the operator uses this screen to input the starting point data.

Then, an arc screen as shown in FIG. 10 is called up. As a result, data for the arc R50 is input, but since the center coordinates of the arc from point 2 to point 2 are not known and its shape is not determined, the calculation soft key is pressed here. As a result, a calculation menu as shown in FIG. 3 is displayed as described above.

Among them, choose calculation number 4. Therefore, by using the straight line, circle C, and distance in FIG. 7, the coordinates of point ■ are calculated. That is, define the distance of 1 circle C9 in a straight line, and then press the execution key. As a result, the coordinate data of point ■ (X l = 3.38904589, Y 1 = 4
9.885011456) can be obtained.

Next, press the return key to return to the original arbitrary contour screen. Then, by inputting the coordinate data of the point ■ previously obtained, a figure as shown in FIG. 11 is drawn.

Next, in order to find the coordinates of point ■, switch to the calculation menu screen again. Then, calculate the coordinates of point ■ using the same calculation as point ■ (X 2 = 20.246340182°Y 2 = -45,71745519). Then, return to the arbitrary contour screen.

Next, the shape from point ■ to point ■ is the following shape R1
Since the center coordinates of the arc No. 3 are known and the shape is fixed, the shape definition can proceed without particularly calculating the coordinates of point ■.

In this way, the contour data of the file name CAM is inputted for the subsequent shape data using the calculation menu as needed (see FIG. 12).

For comparison, let's talk about the conventional example of manually calculating the coordinates of the point (2).A straight line passing through the center of R50 and having an inclination of 10 degrees with respect to the Y axis is y=-5 from y=tan100φx. , 67128182x. The formula for a straight line with a distance of 812 on the right side of this straight line is y=-5,6712
8182x+69.1052458. Also, a circle whose center is (0,0) and radius 50 is x24y2 ==5
It becomes 02. Since the intersection with this circle is the point to be sought, the calculation yields x=3.3899904589. y=49
．． It becomes 88501149.

As described above, manual calculation requires various mathematical knowledge, but according to the present invention, as described above, complex shapes can be input even without specialized mathematical knowledge.

[Effects of the Invention] As explained above, according to the interactive NC program creation method according to the present invention, data of complex shapes can be easily created while interacting, even without specialized knowledge such as mathematical knowledge. You can input and create NC programs.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a device used to implement an interactive NC program creation method according to an embodiment of the present invention, FIG. 2 is a front view of a data input screen in the same embodiment, and FIG. 4 is a front view of the calculation menu screen in the same embodiment, FIG. 5 is a front view of the calculation screen in the same embodiment, and FIG. 6 is data showing a list of calculation results in the same embodiment. 7 are plan views showing the contour shape of the workpiece to be input in the same embodiment, and FIGS. 8, 9, 1O, 11, and i2 are data input in the same embodiment. FIG. 13 is a front view of the data input screen in the conventional interactive NC program creation method, FIG. 14 is a plan view showing the target shape,
FIG. 15 is a configuration diagram showing how to define each part of the shape,
FIGS. 16, 17, and 18 are front views of data input screens in the conventional method.

Claims (2)

[Claims] (1) In a method of creating an NC program in an interactive format using a display, a data input screen for setting conditions related to the used tool or machining shape of a workpiece is called up on the display, and the data is When inputting each data using the input screen, a data calculation menu is called on the display by the data calculation instruction means, a predetermined calculation menu is selected from the menu, and the predetermined calculation screen is called on the display. , an interactive NC program creation method characterized in that the predetermined calculation is executed and stored using the screen, and the execution result data is input using the data input screen. (2) The interactive NC program creation method according to claim 1, wherein the calculation execution result data is distinguished for each calculation.