JPH0474723B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a numerical control device (hereinafter referred to as an NC device), and particularly to a data input method for an NC device.

Conventionally, there has been a device of this type as shown in FIG. In the figure, 10 is a CPU (central processing unit) that processes data, 11 is a RAM connected to the CPU 10, and 12 is a ROM connected to the CPU 10, in which a program for controlling the CPU 10 is stored. 13 is a memory for storing input NC data, 14
15 is a keyboard connected to the CPU 10 for inputting data; and 15 is a display connected to the CPU 10 for displaying data.

Next, the method of inputting NC data will be explained.

Data is input using the keyboard 14 shown in FIG.
Store it in 3. When input of all data is completed, the input graphic shape can be displayed on the display 15 of the NC device having a graphic function. Data input involves defining the figure shape using the code determined by each NC, and inputting the numerical data necessary to determine the figure shape. If an error or the like is found after data input, the NC data is read out from the memory 13, corrected using the keyboard 14, and stored in the memory 13 again.

In the conventional NC device mentioned above, data was input using the method described above, but the method for defining the shape of the figure was complicated, and the operator inputted data unilaterally. It is difficult to detect errors in data until all the data has been entered, and when entering numerical data, it is necessary to think about which part of the data is being entered, making it easy to make mistakes. In many cases, this method has drawbacks such as requiring a considerable amount of skill and time to input data.

This invention was made to eliminate the above-mentioned conventional drawbacks, and includes a keyboard connected to a CPU for inputting data, a graphic input device connected to the CPU for inputting graphic shapes, and a graphic input device connected to the CPU for inputting graphic shapes. Using a display with a graphic function to display the data and a memory connected to the CPU and storing the data, it is possible to store the approximate graphical data from the graphical input device in the memory, and also to display the schematic data in the memory on the display. After drawing a rough figure from the data, the numerical control device prompts the user to enter the data necessary to determine the shape of the rough figure while pointing to the corresponding location on the rough figure, allowing for interactive and accurate drawing. The purpose of this invention is to provide a data input method for an NC device that completes a rough figure into a figure with an accurate machined shape by inputting detailed data from a keyboard. The present invention will be explained below based on the drawings.

FIG. 2 is a block circuit diagram of an NC data input device used in a data input method of an NC device according to an embodiment of the present invention. In the figure, 10 is a CPU that processes data, 11 is a RAM connected to the CPU 10, and 12 is a RAM connected to the CPU 10.
ROM stores a program for controlling the CPU 10; 13 is a memory for storing input NC data; 14 is a keyboard connected to the CPU 10 for inputting data; 15 is connected to the CPU 10. 16 is a graphic input device, such as a tablet, for inputting graphic shapes.

Next, an example of the method of inputting NC data in the present invention will be described. When inputting the shape of a figure, the operator first inputs the approximate shape of the figure from the drawing using the tablet 16 shown in FIG. When inputting the shape of a figure from the drawing shown in FIG. 3, the approximate shape of the figure is inputted freehand from a tablet as shown in FIG. At this time, you only need to input the general shape of the figure, and only need to input so that you can understand the connections between straight lines and circular arcs.
When you have finished inputting the general shape of the figure from the tablet 16, enter a code indicating that the settings are complete on the keyboard 14.
Enter more information. In response to this, the NC device side displays the approximate shape of the figure on the display 15 and asks the operator to input numerical data necessary for determining the shape of the figure. For example, if you display a figure like the one shown in Figure 5 on the screen, mark it with a ▽ mark, and display the words ``Enter the Z coordinate value of the part'' on the screen, the operator can respond to this question. In response, the user inputs numerical data from the drawing using the keyboard 14. Now, the operator only needs to input the minimum numerical data necessary for determining the shape from the keyboard 14, and since it is clear which part of the numerical value is to be input, input is much easier. Mistakes are reduced. In addition, the shape of the figure displayed on the display 15 is the approximate shape of the figure input from the tablet 16 before numerical data is input, but in the process of inputting the numerical data, the shape of the figure is determined. The graphic shape is displayed as is the numerical data, and if a key-in error is made in the numerical data, the error will be immediately obvious. As described above, when the operator inputs data to the NC device, it becomes possible to perform input processing as if the operator were inputting data while interacting with the NC device.

For example, an example of the procedure for defining a shape using the tablet 16 is as follows. A case will be described in which the shape shown in FIG. 3 is defined.

[First step] Definition of the general shape of the figure As input mode 1 Definition of starting point 2 Definition of line segment 3 Definition of tangent arc (arc tangent to the previous shape) 4 Definition of four types of arc as shown in Figure 6 a Defining the starting point Selecting the starting point on the menu and specifying the starting point position on the tablet 16 results in the display shown in Figure 6b.

Defining a Line Segment If you select Line Segment from the menu and specify the end point position of the line segment on the tablet 16, the result will be as shown in Figure 6c.

If a line segment is drawn from the starting point to the ending point in the same manner, the line segment shown in FIG. 6d will be obtained.

Defining a tangent arc Select tangent arc from the menu and specify the end point position of the arc on the tablet 16, as shown in Figure 6e.
In this case, an arc is drawn that touches the previous shape (line segment in the above case) and ends at the specified point.

Below, the entire shape is defined in the same manner as shown in Figure 6 f.
becomes.

[Second step] Definition of figure values Based on the input rough shape of the figure, the coordinate values of each point are defined.

Input is done interactively, and the system asks the operator for any unclear parts. Figure 6g
Requests input of the coordinates of the starting point, as shown in the following, and inputs the coordinate values of the starting point in response to this request. Next, Figure 6h
The operator is prompted to input the coordinate values of the end point position of the line segment, so the operator inputs the necessary values from the keyboard 14. Next, as shown in FIG. 6i, a request is made to input the coordinate value of the end point of the tangent arc, and the operator inputs the value in response.

[Third Step] Drawing the Figure When the input of the coordinate values is completed, the figure is redrawn using the input values to obtain the figure shown in Figure 6j.

In the above embodiment, the tablet 16 is used for inputting a figure, but another figure input device may be used as a means for inputting the approximate shape of a figure.

As explained in detail above, this invention
a keyboard connected to the CPU for inputting data; a graphic input device connected to the CPU for inputting figures; and a display connected to the CPU and having a graphic function for displaying data;
Using a memory that is connected to the CPU and stores data, after storing general graphic data from a graphic input device in the memory and drawing a rough graphic on the display from the rough data in the memory,
The numerical control device prompts the user to input the data necessary to determine the shape of the rough shape by indicating the corresponding location on the rough shape, and the user inputs accurate data interactively from the keyboard, thereby creating the rough shape. is completed as a figure with an accurate machining shape, so when inputting data, you only need to input the required data according to the instructions on the specific outline of the figure, which eliminates input errors and saves time. can be done. Furthermore, it has the advantage that the input method can be learned quickly and does not require much skill on the part of the operator.

[Brief explanation of the drawing]

Fig. 1 is a block circuit diagram of a conventional NC data input device, Fig. 2 is a block circuit diagram of an NC data input device used in the data input method of an NC device according to an embodiment of the present invention, and Fig. 3 is a diagram of the figure shape. FIG. 4 is a diagram showing an example of a figure shape inputted freehand from a tablet, FIG. 5 is a diagram showing an example of a figure shape inputted from a tablet on a display, FIGS. 6 a to 6 j, which are diagrams showing an example of a screen prompting the input of numerical data, are diagrams showing an example of the procedure for defining the shape of FIG. 3. In the figure, 10 is CPU, 11 is RAM, 12 is
ROM, 13 is memory, 14 is keyboard, 15
is a display, and 16 is a tablet. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] 1 In a data input method for a numerical control device in which a machining program for a numerical control device that controls a processing machine is input and the data is processed by a CPU, the above-mentioned
a keyboard connected to the CPU for inputting data; a graphic input device connected to the CPU for inputting figures; a display connected to the CPU and having a graphic function for displaying data; A memory for storing data is used to store general figure data from the figure input device on the memory, and draw a rough figure on the display from the rough data in the memory; By prompting the numerical control device to input data necessary for determining the shape of the rough figure while indicating the corresponding location on the rough figure, and inputting accurate data interactively from the keyboard. A data input method for a numerical control device, characterized in that the rough figure is completed as a figure with an accurate machined shape.