JPS61233809A - Automatic programming generating device - Google Patents

Abstract

PURPOSE:To allow the worker to apply ease of comparison and collation with a component drawing by displaying a tool moving dimension at each block of a working program of an NC machine near a line segment of a tool path graphic on a display together with the tool path graphic. CONSTITUTION:The worker defines a working graphic corresponding to a material to be worked based on a component drawing inputted to the NC machine 19 and inputs respective line segments or circular arcs from a keyboard 9. Then the position of the end of the working path defined up to now is obtained, and the tool moving distance to the next polygonal point is operated and stored in a prescribed memory. Further, a midpoint between the present position and the next polygonal point is obtained, stored in a prescribed memory and a character region near the midpoint and having no line segment drawn is searched and stored. The moving distance stored in the character region is displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an automatic programming creation device equipped with a graphic display device that graphically displays the locus of movement of a tool relative to a workpiece, that is, the tool path.

[Conventional technology]

To create a machining program for a numerical control device using an automatic programming creation device, you have to input and define the shape you want to machine, and input a tool path that indicates what route to machine based on the defined machining shape. 9 Next, enter and add auxiliary function commands such as adding coolant, changing the feed rate, and making tool adjustment corrections, and then create a function that is generated based on the input data. It is necessary to check whether the machining program is correct by comparing it with the part drawing. If you enter the wrong data in a large digit, the tool path figure displayed on the graphic display will be thicker (distorted) than the figure in the part drawing, so you can easily check it, but if you enter the wrong value in a small digit, In some cases, it is not easy to check the dimensions only from the displayed tool path figure.In conventional automatic programming creation devices, the tool path is displayed as a figure, but the dimensions of the 3+? It was not displayed. Therefore, in order to check the dimensions,
As shown in the figure), the NC data of each block of the machining nib n-gram is sequentially displayed on the graphic display device, and the operator moves the tool for each program. It is very troublesome as it is necessary to calculate the iIJ distance and check it with the component dimensions written on the component drawing.
．． It was. In particular, with a wire-cut electric discharge machine, the machining range is narrow because the machining is carried out in a small machining tank, and the workpiece cannot be placed parallel to the X or Y axis of the electric discharge machine, so it must be mounted in a rotating state for machining. Therefore, it is often impossible to read the dimensions directly from the NC data even for simple machined shapes (this has been a problem).

[Problem that the invention seeks to solve]

The present invention was made in order to solve the above-mentioned problems, and an object thereof is to provide automatic programming creation WtWi that allows easy comparison of generated machining programs and drawings and facilitates dimension checking. shall be.

[Means for solving problems]

, Therefore, according to the invention, numerical control! [In an automatic programming creation device equipped with a graphic display device that displays the relative movement locus of the tool to the workpiece in the form of graphics, There is provided an automatic programming creation device characterized by comprising means for displaying a movement dimension near a line segment on a graphic of the tool trajectory corresponding to the block.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an automatic programming creation device of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing the overall configuration of the embodiment, and FIG. 2 is a perspective view showing the external appearance of the embodiment.

Central processing! ! A common path 2 connected to the computer (CPU) 1 has a memo 1J3 . Memory in which control data is stored 4. A working memory 51 for temporarily storing processing data is created, and a disk memory 8 is connected via an ink 7 ace 7. A large number of created NC nib quadrigrams are stored in the disk memory 8. A keyboard 9 equipped with full 77 bet keys, numeric keys, etc. is connected to the common path 2 via the ink 7 ace 10 and transmits key information to the central processing unit 1. Also,
Ink 7 Ace 10 is directly connected to interrupt line 11,
When key operations are delayed, an interrupt signal is issued and an interrupt process is requested. A graphic display device M13 is connected to the common path 2 via an ink 7 ace 12.

The graphic display device 13 is a cathode ray display (CRT).
)14. Its control circuit 15. Graphic memory 16.
Character generator 17 and refresh memory 1
8. Graphic memory 16 is display 1
All pixels of one screen of 4 are memorized. The character generator 17 consists of a read-only memory, stores character shapes, and +
The 77 reflex memory 18 has a storage area corresponding to the number of characters that can be displayed on one screen of the display 14, and corresponds to each row and column (for example, 25 rows x 80 columns) in which characters can be displayed on the display 14. Memorize the character information you want to display in the address. The control circuit 15 is a central processing unit 1ff! 1 is stored in the graphic memory 16 and the character generator 17, and a video signal from the pixels from the graphic memory 16 and character generator 17 is sent to the display 14 to display figures and characters. In order to output the processed NC711 nib program, a slanted input/output interface 7 ace 20 that directly receives NC data to NC@fJ and an output interface 23 for outputting to the magnetic tape 21 or tape puncher 22.
First, the shaking procedure for creating a machining program will be briefly explained. Figure 3 is a layout diagram of the numeric keys on the right end of the keyboard 9, ttS4
The figure is an image diagram showing an example of graphic display on the display 14.゛□ Define the machining shape corresponding to the workpiece based on the part drawing.

In this embodiment, a wire-cut electric discharge machine is assumed as the target machine tool, and the part figure will be explained as a two-dimensional figure. The figure is a point.

It is composed of nine line segments or arcs, and is defined by, for example, inputting the starting point, end point, center point, etc. of each line segment or arc sequentially from the keyboard 9.

The figure defined for the dog is displayed on the display 14, and a machining path (cutter path) is defined. The machining path is defined by sequentially specifying target points on the figure where the tool will advance using a graphic cursor.

At this time, when an auxiliary function command is input from the keyboard 9, the auxiliary If11 function command is written into the last block of NC data corresponding to the currently defined machining path. Then, one line segment is defined as the tool path! Each time the line segment is displayed, the dimension corresponding to that line segment is displayed near the midpoint of the line segment. The following is an explanation using the graphic display shown in FIG. 4 as an example.

(1) Input the FAT)l command from the keyboard 9.

It becomes possible to specify

(2) Manually execute the acid command to add 1/7 tool paths. Then, a graphic cursor 41 is displayed on the display 14. This graphic cursor 4
1 can be freely moved in the direction of the arrow by pressing the numerical keys with arrows shown in FIG. 3 at the right end of the keyboard 9.

Move the graphic cursor 41 to the breaking point 4 of the figure, which is the target point.
2 and press the "5" key in the center of the numeric keys, a straight line segment 43 is defined as the tool path. Here, the numerical value "5" key is used as a pick 7 key to read the cursor position. When the line segment 43 is determined, the color of the line segment 43 changes and is displayed in green on the display 14, and 41/4 is displayed near the midpoint 44 of the line segment 43.
For example, the dimension corresponding to 3 is displayed as [40,0OOJ.

The unit of dimension display corresponds to the minimum feed unit of the NC device, and in this embodiment, it is displayed in microns (μ).

(3) Enter the add command again, move the graphic cursor 41 to the next target, α, d45, specify whether the center position of the arc is to the right or left side of the target point, and set the radius. After specifying , press the number "5". As a result, the arc 46 is defined as the machining path of the next block, and it is displayed in green on the display 14, and near the midpoint 47 of the arc 46. The dimensions of the arc 46 are [32,
534J is displayed. The NC data of this block is generated as a circular interpolation command G3. The tool path up to the break point 45 has been defined above.

(4) Next, input the add command again to move the graphic cursor 41 to the final target point, the corner point 48,
Press the numerical value "5" key. As a result, line segment 49 is defined as the machining path for the next block, and is displayed in green, and the middle of line segment 49! :The dimension is r37. near L50.
000J is displayed.

(5) Finish defining all tool paths and press the period key.

(6) Next, input a 9ent command to generate NC data based on the defined tool path.

(7) Then, the display 14 will ask you for the file name (program name) [File na = J], so enter an appropriate name.

(8) Next-2, rOFsET the left and right of the tool diameter (wire diameter), L (G 41 ) or R (G 42
) = J, so enter rL, CRJ or “
Enter r(, CRJ.

(9) Next, you will be asked for the feed speed as "■eIoC1ty=", so input the appropriate feed F code.

(10) After a, you will be asked what to do at the end of this machining program, ``M O, M 1 or M'2 = J. For example, if you enter ``2, CRJ'', you will be asked what to do at the end of this machining program. (program end) is added.

When the above operations are completed, a machining program is generated based on the defined machining path, etc., and recorded in the NC data memory 5! be done.

The operator then selects the N stored in the N C data memory 5.
Transfer the CC processed profile to disk memory 8, save it, and directly NC it as necessary! ! The paper tape can be transferred to the storage 19, or a paper tape can be created and used using the tape bunch door 22.

The above-mentioned operating procedure provides a concrete method for displaying the tool movement dimension for each block in the machining program near the midpoint of a line segment consisting of a straight line or arc of the tool path figure corresponding to that block. The process will be explained.

FIG. 5 is a 70-chart showing the actual processing. First, in step 201, the current position, that is, the position of the end of the machining path defined up to now is determined. If not a single block of the machining path has been defined, the machining origin is determined as the current position.Next, in step 202, the tool movement and separation from the current position to the next bending point is calculated.
Store it in a predetermined memory. In step 203, the midpoint between the current position and the next turning point is determined and stored in a predetermined memory.

Next, in step 204, a character area in the vicinity of the intermediate point where no line segment has already been drawn is searched for and stored. this is,
Of the character area on the display 14 consisting of rows and columns (for example, 25 rows x 80 columns) in which characters can be displayed, the graphic memory 16 is searched for an area where a line segment is not drawn near the above-mentioned midpoint. I ask. Then, in step 205, the moving distance stored in the character area is displayed, and the process ends. By repeating the above process every time a new machining path is defined, the distance (dimension) the tool moves for each line segment is displayed in the vicinity of its midpoint.

〔Effect of the invention〕

As explained above, according to the present invention, graphical display! III
Along with the tool path figure, the tool movement dimensions for each block of the machining program are displayed near the line segment of the tool path figure corresponding to the block, making it easy for operators to compare and check with the part drawing. This has the excellent effect of making dimension checks easier. Moreover, since the movement dimension of the tool is displayed, there is an effect that the machining time can be easily grasped.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the automatic programming creation device of the present invention, in which FIG. 1 is a block diagram, FIG. 2 is a perspective view, FIG. 3 is a layout diagram of numerical keys, and FIG. Image diagram showing an example of graphic display, W & 5 diagram shows actual processing 7
0-chart, and FIG. 6 is an image diagram showing an example of graphic display on a conventional device. 1...Central processing unit (CPU), 3-6...Memory, 8...Disk memory, 9...Keyboard,
13... Graphic display device, 14... Display (C
RT), 16...Graphic memory, 17...Character generator, 19...NC device. 2nd day t+r2 115 shares

Claims (1)

[Claims] In an automatic programming creation device equipped with a graphic display device that displays, as a graphic, the locus of movement of a tool relative to a workpiece according to a machining program of a numerical control device, An automatic programming creation device characterized by comprising means for displaying a relative movement dimension of a tool near a line segment on a graphic of the tool trajectory corresponding to the block.