JPH04319705A - Numerical controller having interactive program editing function - Google Patents

Abstract

PURPOSE:To make it unnecessary for an operator to relate to the contents of a part program by pointing out a part to be corrected of a tool locus plotted on a CRT screen by means of a mouse or the like and executing the correcting processing of the specified part by selecting one of processing items displayed as a menu on the CRT screen and inputting data to be inputted based upon the selected processing item. CONSTITUTION:This numerical controller is constituted of a plotting processing part 25 for plotting a tool locus on a CRT screen based upon the part program, the mouse 7 for pointing out a part to be corrected of the tool locus plotted on the CRT screen and an editing processing part 27 for displaying plural processing items to be selected for the correcting processing of the specified correcting part on the CRT as a menu and correcting/changing the part program based upon the processing selected and inputted through a keyboard 3 out of plural processing items displayed on the menu and an input item displayed based upon the selected processing.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to numerical control devices for machine tools and the like, and more particularly to a numerical control device having an interactive program editing function that facilitates editing and changing programs at a machining site.

0002

[Prior Art] In a conventional numerical control device having an interactive program editing function, when it becomes necessary to change the shape of a workpiece to be machined at a processing site, an operator can If the machining program is stored in an NC language, use the editing function in the CRT to call up the corresponding NC language program.
Find the part that needs to be changed by displaying it on the screen and enter it in NC language from the keyboard to make the corrections, or if you have a memory section in an automatic programming language, write a program written in the corresponding automatic programming language. The parts that needed to be changed were corrected by calling them up and inputting them from the keyboard using an automatic programming language.

0003

[Problem to be Solved by the Invention] However, in order to be able to change the machining program at the machining site, with conventional numerical control devices, the operator must be sufficiently familiar with the NC language or automatic programming language. The number of operators who meet such conditions is limited, or a lot of time is required for training operators to acquire programming skills.
Even if the operator is familiar with the language, when modifying the machining shape, it is necessary to search the program for the corresponding part of the shape defined in the NC language or automatic programming language, and the longer the program, the longer the program will become. There were problems such as the time it took to make corrections. The present invention has been made in order to solve the above-mentioned problem, and the present invention is made by specifying a part of a figure drawn on a CRT screen to be corrected using an indicating means, and then having the correction displayed on the CRT screen. An object of the present invention is to provide a numerical control device having an interactive program editing function in which a part program can be modified as desired by selecting a menu and inputting data according to input data items instructed accordingly. .

0004

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a numerical control device having an interactive program editing function, which allows a machine control unit to execute a program stored in an interactive programming language. In a numerical control device having an interactive program editing function for converting (NC conversion) into an NC program in a standard format and outputting it to an NC machine tool, a drawing processing means for drawing a tool trajectory on a CRT based on a part program; The part to be corrected in the tool trajectory drawn on the CRT screen is displayed on the CRT screen.
A means for instructing on the screen, a menu displaying on the CRT a plurality of processes to be selected regarding correction processing of the instructed correction portion, and a process selected and inputted by the input means from among the plurality of processes, and the process selected and inputted by the input means. The present invention is characterized by comprising an editing means for modifying and changing the part program based on data input according to items displayed during processing.

[0005]

[Operation] In the numerical control device having an interactive program editing function according to the present invention, when a part program is partially changed, a tool trajectory is graphically displayed on the CRT screen based on the part program to be modified.
The portion of the graphically displayed tool trajectory to be corrected is indicated by the instruction means on the CRT screen, the desired process is selected by the input means from the editing process menu displayed on the CRT screen, and the By inputting data according to the input items displayed, the part program can be changed as desired.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A numerical control device having an interactive program editing function according to the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a numerical control device having an interactive program editing function according to the present invention. In the figure, reference number 1 is a central processing unit that controls data input/output and other control operations of the entire device through the bus line BL, and 3 is a keyboard for the operator to input various control commands or numerical control programs in an interactive language. 5 is a display device (hereinafter referred to as CRT) that draws and displays the tool trajectory based on the part program and displays programs and various information expressed in alphanumeric characters; 7 is a correction device for the tool trajectory drawn on the screen of CRT 5; A mouse is used to operate a cursor that indicates the desired part (a mouse is used in Figure 1, but a joystick that can input input for cursor operation may also be used); 9 is an NC machine tool to be controlled; 11 is N
A machine control unit that outputs a control signal based on a C program to the NC machine tool 9, 13, 15, and 17 are parts composed of RAM, 13 is a part program storage unit,
Reference numeral 15 is a working area for editing part programs, and reference numeral 17 is an NC program storage section. 21, 23, 25, 27, and 29 are parts composed of ROM, 21 is an input signal processing unit that processes signals input from the keyboard 3, and 23 is a signal that is displayed on the screen of the CRT 5 by the mouse 7. 25 is a drawing processing unit that performs processing to draw a tool trajectory on the screen of the CRT 5 based on a part program; Reference numeral 27 is an editing processing section that edits the part program using data input from the keyboard 3 and mouse 7, and 29 is an NC conversion processing section that performs processing of converting the part program into an NC program.

FIG. 2 is a flowchart showing the flow of the processing shown in FIG. 1 related to part program editing processing. In the figure, in step S1, a message asking whether to modify the part program or create a new part program is displayed on the screen of the CRT 5. When creating a new program, the operator creates a new program using the keyboard 3 in step S202, and proceeds to step S4. When editing a program, the operator uses the keyboard 3 to input the name of the part program to be modified in step S201. Step S
In step 3, the specified program is transferred from the part program storage section 13 to the working area 15. Step S4
Then, the tool trajectory of the part program transferred to the working area in step S3 or the part program newly created in step S202 is drawn on the screen of the CRT 5 by the drawing processing section 25. In step S5, CR
A menu is displayed for the operator to select whether to perform NC conversion, edit, or terminate processing for the part program whose tool trajectory is displayed on the screen of T5. If the operator selects NC conversion, the NC conversion processing unit 29 performs NC conversion in step S602 and stores it in the NC program storage unit 17, and the process returns to step S5. If end is selected in step S5, the process ends. If editing is selected in step S5, an editing mode is entered in step S601, and editing menus such as insert, delete, move, copy, and change are displayed on the screen of the CRT 5. Here, inserting means adding a locus of linear movement of cutting feed, linear movement of rapid traverse, or arc movement at the desired position (after the line segment specified with the cursor), and deletion means adding the locus of linear movement of cutting feed, linear movement of rapid traverse, or arc movement at the desired position (after the line segment specified with the cursor). "Move" means to move the specified line segment in parallel, rotationally, or as a mirror image within the X-Y plane, etc.; "copy" means to erase the specified line segment. It copies a line segment to a parallel translation, rotational translation, mirror image, or multi-piece position.Change means that the specified line segment can be moved in a straight line with cutting feed, in a straight line with rapid traverse, or in an arc. It is something that changes. In step S7, the operator uses mouse 7
A cursor is used to indicate a line segment drawn on the screen of the CRT 5 that requires correction of the tool trajectory. At this time, the editing processing unit 27 searches for the part of the part program corresponding to the line segment indicated by the cursor, and the drawing processing unit 25 displays that part in a different color, allowing the operator to select the desired part. Make sure that. In step S8, regarding the modification of the line segment indicated by the cursor on the screen of the CRT 5, select from the editing menu of insert, delete, move, copy, and change displayed on the screen of the CRT 5. , the operator selects and inputs the desired process from the keyboard 3. Steps S901, S90
2. In S903, S904, and S905, items to be input and necessary data are instructed on the screen of the CRT 5 according to each of the correction processes selected by the operator, such as insert, delete, move, copy, and change, and the operator follows the instructions. Therefore, input is performed using the keyboard 3. In step S11, the corresponding portion of the part program that has already been searched is modified based on the input data. In step S13, the tool trajectory as a result of the correction is displayed on the CRT 5 with the corrected location changed in color. After step S13, go to step S5 again and NC
If conversion is required, NC conversion is performed in step S602.

FIGS. 3, 4, 5, and 6 show examples of operation screens displayed on the screen of the CRT 5 in steps S7 to S13. FIG. 3 shows a state in which the instruction cursor is moved in step S7 to select the line segment L1 as the portion to be corrected. In FIG. 4, line segment L1 is selected in step S7 (when a line segment to be corrected is selected, the values of the coordinates of the start point and end point for that line segment are shown in the window table WT), and in step S8, the line segment L1 is selected from the edit menu. 5 shows a state in which movement is selected and rotation, parallel, and mirror image are displayed in the window as selection input items related to the movement method. FIG.
A state where 80 degrees is input is shown. FIG. 6 shows step S11.
After the part program is corrected in step S13, a tool trajectory is drawn based on the corrected part program. The corrected portion L2 is drawn in a different color from the other portions.

[0009]

As described above, according to the present invention, when a part program needs to be partially corrected, the part of the tool path drawn on the CRT screen that requires correction can be indicated by the cursor. Then, select the processing item for the corresponding process in the edit menu displayed on the CRT, and the input data required to perform the process will be instructed on the CRT screen, so if you input the data according to the instructions, The part program has been modified and the resulting tool path is C.
Since it is drawn on the RT screen, the operator can modify the tool path without being aware of the part program or programming language.

0010

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a numerical control device having an interactive program editing function according to the present invention.

FIG. 2 is a flowchart showing the flow of processing when modifying a part program in a numerical control device having an interactive program editing function according to the present invention.

FIG. 3 is an example of an operation screen displayed on a CRT screen when modifying a part program.

FIG. 4 is an example of an operation screen displayed on a CRT screen when modifying a part program.

FIG. 5 is an example of an operation screen displayed on a CRT screen when modifying a part program.

FIG. 6 is an example of a corrected tool trajectory displayed on a CRT screen when a part program is corrected.

[Explanation of symbols]

1 Central processing unit 3 Keyboard 5 CRT 7 Mouse 9 NC machine tools 11 Machine control section 13 Part program storage section 15 Working area 17 NC program storage section 21 Input signal processing section 23 Cursor instruction signal processing unit 25 Drawing processing section 27 Editing processing section 29 NC conversion processing section

Claims (2)

[Claims] [Claim 1] An interactive program that converts a program stored in an interactive programming language (hereinafter referred to as a part program) into an NC program in a format executable by a machine control unit (NC conversion) and outputs it to an NC machine tool. In a numerical control device with a program editing function,
a drawing processing means for drawing a tool trajectory on a CRT screen based on a part program; a means for indicating on the CRT screen a portion to be corrected in the tool trajectory drawn on the CRT; and the specified correction portion. A menu is displayed on the CRT to select a plurality of processes to be selected regarding the correction process of the process, and a process selected and inputted by the input means from among the plurality of processes displayed on the menu and input items displayed along with the process are displayed. Therefore, a numerical control device having an interactive program editing function is characterized in that it has an editing means for modifying and changing a part program based on input data. 2. A numerical control device having an interactive program editing function according to claim 1, wherein the plurality of processes to be selected are deletion, movement, copying, insertion, and modification.