JPS5975309A - Numerical control device provided with graphic display device - Google Patents

Abstract

PURPOSE:To confirm easily an NC working program by changing a color of a drawn picture of a tool locus by an input command. CONSTITUTION:An NC working program 1 is read by one block each, and is provided to a discriminating means 2 and a tool locus data generating means 3. The discriminating means 2 discriminates whether an inputted block is a color change designating block or not, by referring to an output of a color change designating means 4 for designating in which part of the NC working program a color of the tool locus is changed. A tool locus data corresponding to a block which is not a color change designating block and a tool locus data of the color change designating block are written in a graphic use RAM6 and a graphic use RAM7, respectively. Its contens are read out by synchronizing with a video signal generating means 8, and a color video signal is generated and is inputted to a color graphic part 9.

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to an improvement in a numerical control device equipped with a graphic display device capable of displaying tool trajectories.

Prior Art and Problems Recently, a numerical control device has been proposed that is equipped with a graphic display device that draws a tool trajectory when a numerically controlled (NC) machine program is executed. It has become much easier to check whether the NC nib program When I checked, it was surprisingly difficult to find the desired location, and when editing the NC Canada program, it was not easy to confirm the edited location.

Purpose of the Invention The present invention has been made in view of the above circumstances.
The purpose of this is to make it easier to confirm the NC nib program by making it possible to change the drawing color of the tool path based on the input command.

Structure of the Invention FIG. 1 is an explanatory diagram of the structure of the apparatus of the present invention. The NC program is read block by block by block reading means 1 and added to identification means 2 and tool trajectory data creation means 6. The identifying means 2 refers to the output of the color change specifying means 4 which specifies in which part of the NC machine program the color of the tool path is to be changed, and determines whether the input block is a color change specifying block. The tool path data creation means 6 then creates tool path data for the input block if it is a movement command block. The writing means 5 stores tool trajectory data corresponding to blocks other than color change designated blocks in a predetermined graphic RAM.
6, and the tool trajectory data corresponding to the color change designation block is written to another graphics RAM 7. RAM6 for graphics.

7 correspond to different colors, the contents of which are read out synchronously by the video signal generating means 8 to create a color video signal, which is input to the color graphics section 9.

Embodiment of the Invention FIG. 2 is a block diagram showing an example of the hardware configuration of the numerical control device of the present invention, in which 1o is a microcomputer, and 11 is a program necessary for the microcomputer 10 to execute a predetermined operation. ROM, 1 for storing etc.
2 is a RAM used for voiders and calculations, 13 is an address decoder for accessing memory, etc., and 14 is N.
15 is a manual data hexagonal device (MDI), 16 is a CRT controller that generates horizontal and vertical synchronization signals and scan addresses, 17 is a pulse oscillation circuit, and 18 is a CPU address and scan address. 19 is an address decoder, 20 and 21 are data drivers, 2
2 is a graphics RAM for standard colors having a storage area corresponding to the screen; 23 is a graphics RAM for changeable colors; 24 is a display control circuit; and 25 is a color graphics section.

Further, FIG. 6 is a flowchart showing an example of the software configuration of the second illustrated device. The operation of this device will be explained below with reference to the same figure.

In this embodiment device (2), which part of the drawn tool trajectory should be made different in color from the standard color can be specified using the NC nib program, or can also be specified manually using the keys from the MD115. When specifying using , for example, include a color change command using M code etc. in the block whose color you want to change.Also, when specifying manually using keys, specify a color change command using M code etc. to identify the block whose color should be changed. Enter the sequence number, address, tool number, etc., and input the color change command manually.

For example, as shown in FIG. 4, five holes P1 to P5 are inserted into the holes P1 and T01. T03, hole P2. P4 fly tool TO2
, hole P3 is a route formed by using tools T01, TO2, and 7CP5 fly tools To1 to To3, respectively, and considering an Nc nib program in which drilling is performed by exchanging tools in the order of tools 7'01, TO2, and T03. If you look at it, the tool trajectory will be, for example, as shown by the solid line in the same figure. It is not easy to know, for example, the trajectory of tool TO2 from such a tool trajectory under the circumstances where all the tool trajectories are displayed in the same color. However, according to this embodiment, only the trajectory of the tool TO2 is drawn in a color different from the color of the trajectory of the other tools, as shown below, so that confirmation becomes extremely easy.

In order to make only the trajectory of the tool TO2 a different color, input r7'02J as data for identifying the tool To2 from the MD 115 in FIG. 2, and then input a color change command. This information is stored in the microcomputer 1
0 and stored in a predetermined location in the RAM 12.

After performing the above operations, when the tool path mode is started, as shown in FIG.
Step S of reading out the block at the position indicated by the pointer in the RAM 12 among the blocks of the Canadian program.
1) The pointer is incremented by +1 (step S2). Next, step S refers to the contents of RAM 12 to determine whether or not there is a color change command using key C2.
'3) If there is a color change command, it is determined whether the block is a color change designated block by comparing TO2 and the address of the block (step S4). Further, if there is no key (two-way color change command) or if the block is not a color change designation block, it is determined whether there is a color change command on the program (step S5).

key (2) If there is a color change command and that block is a color change designation block, that is, in the above example, if that block is a movement command for tool TO2, the microcomputer 10 will Calculate the amount of movement, create tool path data using a known method, and write this to the graphic RAM 2 for changing colors (
Steps S6, 87, , S'8).

Also, if there is no color change command using the key (=, or even if there is, the block is not a color change specification block and there is no color change command on the program, the microcomputer 10
calculates the amount of movement when the block is a movement command, creates tool path data, and writes this to the graphic RAM 22 for standard colors (steps S9, , S'
10, , S'11).

The above operations are performed until the NC cutting program is completed (step 512), and in the end, the tool trajectory data of tools T01 and T[]3 are stored in the graphic RAM 22 for standard colors, and RAM23
The tool trajectory data of the tool 7'02 is stored.

When predetermined information is written to the graphics RAMs 22 and 23, the address switching circuit 18 is switched to the scan address side (two sides) of the CRT controller 16, and the contents of the graphics RA, M22 and 23 are read out in synchronization with the scan address. For example, if the graphics RAM 22 is red and the graphics RAM 23 is a RAM corresponding to the edge, the output of the graphics RAM 22 is converted to a red video signal by the display control circuit 24 (2), and the output of the graphics RAM 23 is converted to a green video signal. The color graphics unit 25 inputs the video signal and draws the tool trajectory on the CRT screen. In the example shown in FIG. 4, the trajectory portions of tools T01 and T03 are displayed in red. The trajectory portion of tool TO2 (indicated by a broken line) will be displayed in green.

In the above embodiment, the microcomputer 10 creates the tool trajectory data, but this microcomputer is used exclusively for drawing, and is capable of creating the tool trajectory data, manually controlling the keys, reading the NC program, and so on.
It is also possible to have a configuration in which the identification etc. are performed by another microcomputer at the higher level. In addition, in the figure, only 22.23 pieces of RAM for graphics of 24 pieces are used, but this is for the convenience of explanation.
AM may also be used. Other possible uses of the present invention include the following.

(1) Change the color during rough machining and finishing machining.

For example, a color change command may be inserted into the rough machining portion of the NC nib program.

(2) When changing a part of an already created NC program, change the color of only the changed part. This will make it clear which parts need to be checked.

(3) By specifying colorless portions where the tool trajectories overlap, an easy-to-understand diagram can be created by removing unnecessary trajectories. As a specific method for realizing colorlessness, a method can be adopted in which a non-existent graphic RAM is assumed to be a graphic RAM for changing colors.

As described in detail of the invention, according to the present invention C2, any part of the tool path can be drawn in a different color from other parts by manual keystroke or commands in the program, so the validity of the NC cutting program can be confirmed. This has the advantage that editing operations can be performed extremely easily.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the configuration of the device of the present invention, FIG. 2 is a block diagram of main parts showing an example of the hardware configuration of the device of the present invention, and FIG.
The figure is a flowchart showing an example of the software configuration of the second illustrated device, and FIG. 4 is a diagram showing an example of the tool trajectory. 10 is a microcomputer, 11 is a ROM, 12 is an R
AM, 15.19 is address decoder, 14 is CMOS
Memory, 15 is MDI, 16 is GET controller, 1
7 is a pulse oscillation circuit, 18 is an address switching circuit, 20.
21 is a data driver, 22 is a graphics RAM for standard colors, 25 is a graphics RAM for changed colors, 2
4 is a display control circuit, and 25 is a color graphics section. Patent applicant FANUC Corporation

Claims (1)

[Claims] In a numerical control device equipped with a graphic display device that draws the trajectory of a tool when an NC machining program is executed, the NC program is read one block at a time.
a block reading means; a color change specifying means for specifying in which part of the NC cutting program the color of the tool path is to be changed; and whether or not the block read by the one block reading means is a color change specifying block. a color change block identifying means for identifying the block, a tool trajectory data creation means for creating tool trajectory data of the block read by the one block reading means, a plurality of graphic RAMs provided corresponding to the colors; The tool trajectory data identified as not being a color change designation block by the change block identification means is stored in a predetermined negative graphics RAM of the plurality of graphic RAMs. a writing means for writing data into the graphics RAM other than the above; a video signal generation means for reading out the contents of the plurality of graphics RAMs in synchronization and creating a color video signal; and a color graphic that receives the video signal as input. A numerical control device equipped with a graphic display device, characterized by comprising: