JPH04191908A - How to create NC command data - 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] [Industrial Application Field] The present invention is based on NG (Numerical Cont
rol) Relating to a method for creating NC command data used in drive control of machine tools, in particular, an NC suitable for efficiently creating NC command data for multiple parts having the same shape part created from a scanner input image. This relates to a command data creation method.

[Prior Art] Conventionally, automation has been carried out using computers to replace human processing and work with machine processing and work.

For example, as described on pages 2773 to 2774 of IEICE's "Electronic Information and Communication Handbook J (1988, published by Ohmsha)," numerical control that numerically controls the position and speed of a controlled object, i.e. , NG has been applied to machine tools, and machining has been automated.

For example, NC lathes can perform conventional lathe work that requires skill.
Based on NC command data created through interactive programming, etc., the efficiency is 2 to 5 times greater than conventional methods. Also,
As a mold processing machine, the wire-cut electric discharge machine can produce complex, high-precision molds in an extremely short time, and the plastic molding machine also has a wide range of speed control from high speed to ultra-low speed. CRT (Cathode)
Molding conditions can be easily set based on the display screen of a RayTube, cathode ray tube, or cathode ray tube.

Furthermore, regarding the method of creating such NC command data, for example, as described in pages 1136 to 1137 of the above-mentioned "Electronic Information and Communication Handbook J (published by Ohmsha, 1988)" edited by the Institute of Electronics, Information and Communication Engineers. There are some methods that are carried out using a computer-based drawing reading device.In other words, the original drawing is read in with a scanner, etc., and
NC command data is created using image information corresponding to the read original drawing.

[Problem to be solved by the invention]

Conventionally, the method of creating NC command data used for drive control of NC machine tools involves reading the original drawing using a scanner, etc.
Some systems perform image processing on read image information to create NC command data.

However, for example, when creating multiple parts that differ only in the arrangement of characters, conventional technology creates original drawings for creating each NC command data, and reads each original drawing one by one with a scanner. It was necessary to Therefore, there were problems such as it took time to create the NC command data and the work efficiency decreased.

The purpose of the present invention is to solve these problems of the prior art, to create NC command data for each of a plurality of parts having the same shape parts by processing only the same shape parts, and to shorten the creation time of the NC command data. An object of the present invention is to provide a method for creating NC command data that improves the efficiency of NC machining operations.

[Means for Solving the Problems] In order to achieve the above object, the NC command data creation method of the present invention provides: (1) drive control of an NC machine tool based on image information corresponding to an original drawing inputted with an image input device; N used for
NC of the NC command data creation device that creates C command data
In the command data creation method, position information is added to each of the created plurality of NC command data based on instructions from the operator, and based on this position information, the plurality of N
The present invention is characterized in that each piece of C command data is arranged to create new NC command data.

(2) In the NC command data creation method described in (1) above, multiple pieces of one NC command data are arranged on the same circumference based on the position information given based on instructions from the operator, and new It is characterized by creating NC command data.

[Operation] In the present invention, position information is added to NC command data created by reading an original drawing through a scanner or the like. Then, based on this position information, a plurality of NC command data are freely combined and arranged to create new NC command data. For example, when creating NC command data for a plurality of parts that differ only in the arrangement of characters, etc., only the NC processing data such as characters is changed to a different arrangement.

Furthermore, when creating NC command data for parts having the same shape, such as gears, the same NC command data are created by arranging them on the same circumference.

This makes it possible to easily create new NC command data that differs only in the arrangement of each NC command data.
There is no need to create an original drawing for each C command data. Further, even if correction is required, there is no need to start over from the original drawing, and corrected NC command data can be easily created.

[Example〕 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the configuration of an NC machining system according to the present invention.

The NC machining system of this embodiment includes an NC command data creation device that creates NC command data of the present invention, a scanner device 2 that reads the original drawing that is the source of the data to be processed as image information, and an extraction from the read original drawing or original drawing. C of the graphics display device that displays each NC command data
Following the display screens of RT3 and CRT3, the operator
Keyboard 4 for inputting instructions for editing C command data, etc.
and a mouse 5, and a storage device 6 consisting of a magnetic disk or the like for storing information such as each NC command data. It consists of an NC machining device 7 that processes parts based on information from the NC command data creation device 1.

The NC command data creation device 1 includes a central processing control unit 8 that controls the overall operation of the NC command data creation device 1, and image/command data that performs image processing on image information read by the scanner device 2 to generate NC command data. It is composed of a conversion processing section 9 and an NC data editing processing section 1O that performs an editing operation of NC command data according to the present invention.

The NC data editing processing unit 10 then edits the image based on the operator's instructions via the keyboard 4 and mouse 5.
a data position information setting processing unit 11 that sets and changes the position information of the NC command data generated by the command data conversion processing unit 9, and displays the position information for each set NC command data on the CRT 3; Setting processing unit] Data execution processing unit 12, which performs arrangement processing of each NC command data based on the position information set in step 1, generates image information corresponding to new NC command data, and displays it on the CRT 3, data position information setting It is composed of a data registration processing section 13 that registers the position information set by the processing section 11 in the storage device 6.

With such a configuration, the NC command data creation device 1 can:
The central processing control unit 8 displays the image information of the original drawing read by the scanner device 2 on the CRT 3.
The command data conversion processing gII9 performs image processing based on the image information displayed on the CRT 3 to create NC command data corresponding to the original drawing.The NC command data created by the image/command data conversion processing section 9 is The data is sent to the NC machining device 7, and the NC machining device 7 processes the parts corresponding to the original drawing based on this NC command data.

In this way, the NC command data creation device 1 can automatically create NC command data corresponding to the original drawing read by the scanner device 2.

Furthermore, the NC command data creation device 1 of this embodiment
It has a data editing processing section 10, and creates NC command data for a plurality of parts having the same shape parts by processing only the same shape parts.

The operation will be explained below.

First, the data position information setting processing unit 11 sets each N'C command data corresponding to the original drawing read by the scanner device 2 based on instructions from the operator input using the keyboard 4 and mouse 5. Set location information that indicates the positional relationship between Then, the set position information is displayed on the CRT 3.

As shown in FIGS. 3 and 4, which will be described later, this position information has various parameters that indicate the positional relationship of each NC command data, and by changing the values of these parameters, the N-C The arrangement position of command data can be changed.

Next, the data execution processing unit 12 displays an image corresponding to the NC command data on the CRT 3 based on the position information set by the data position information setting processing unit 11. At this time, by simultaneously displaying the position information of each NC command data together with the image on the CRT 3, the operator's operation becomes easier. In addition, each location information is stored together as a temporary file.

Here, the operator looks at the image on this CRT3,
Check whether the image is as you intended. If the image is as intended, the operator uses the keyboard 4 and mouse 5 to instruct the storage of NC command data having the position information.

Based on this instruction, data registration process g! According to 113,
The temporary file created by the data execution processing unit 12 is given a file name and sent to the storage device 6.

Thereby, the NC command data having the position information set by the data position information setting processing section 11 can be stored in the storage device 6 and reused when necessary.

In this way, the NCC command data 5 generation device 1 and the NC data editing processing unit 10 in this embodiment generate NC command data from the original drawing read by the scanner device 2, or
By freely changing and setting the arrangement position of existing NC command data already stored in the storage device 6, it is possible to easily provide a plurality of NC command data that differ only in part, such as characters.

Hereinafter, processing operations according to the present invention of the NC command data creation device 1 will be explained using a flowchart.

FIG. 2 is a flowchart showing an embodiment of the processing operation according to the present invention of the NC command data creation device shown in FIG. Image information corresponding to the original drawing from the scanner device 2 in FIG. 1 is read (step 202), and NC command data is created by the image/command data conversion processing section 9 (9) in FIG. 1 (step 203).

On the other hand, if the necessary NC command data is already stored in the storage device 6 of FIG. 1 together with the position information, the necessary NC command data is extracted from the storage device 6 of FIG. 1 (step 204).

Next, when setting instructions and change instructions are input from the operator (step 205), the position information of each NC command data created or extracted based on the second instruction is
The data location information setting processing unit 11 shown in FIG.
settings (step 206).

Then, based on the changed and set position information, the data execution processing unit 12 shown in FIG. 1 arranges the images corresponding to each NC command data and stores them as a -time file (step 207), on the CRT 3 shown in FIG. (Step 208).

At this point, wait for confirmation input from the operator to confirm whether the displayed image correctly reflects the desired changes (
Step 209).

If the displayed screen is a correct changed image input (step 2 O), the -time file is stored in the storage device 6 of FIG. 1 (step 2+1), and the process ends.

If it is input that the displayed screen is not the correct changed image and there is still room for improvement (step 21O), delete the -time file step 212), return to step 205 and change the location information again. .

In this way, in this embodiment, existing NC command data,
By reading the original drawing and freely setting the position of the created NC command data, for example, you can easily create NC command data for multiple parts that differ only in the arrangement of characters, etc., and create new ones for each part. There is no need to create from an original drawing.

Furthermore, even if the NC command data needs to be corrected, there is no need to start over from the original drawing, which saves time and effort.

Next, the processing operation of the NC command data creation device 1 shown in FIG. 1 according to the present invention will be explained using a specific example.

FIG. 3 is an explanatory diagram showing a first example of position information and image information created by the NC command data creation device in FIG. 1.

This is an example of creating NC command data for parts that differ only in the arrangement of the same parts.

FIG. 3(a) shows the screen 30 of CR, T3 in FIG. ”
, Image EC corresponding to DATA(3)'', DATA(4
) corresponding to the images "D", respectively, from the left, the images r
AJ, image rB), image "C", and image "DJ" are displayed in this order.

FIG. 3(b) is position information 31 representing the positional relationship of each NC command data, which is displayed on the screen on the CRT 3 of FIG. Here, DATA (1) of the NC command data corresponding to image "A" is at the origin of the X axis, and one image rf
DATA(2) of the NC command data corresponding to image "C" is at a distance of r5J from the origin of the X-axis, and DATA(3) of the NC command data corresponding to image "C" is "1" from the origin of the X-axis.
0", and the NC corresponding to the image "DJ"
Command data DATA (4) is "15" from the origin of the X axis
is shown to be at a distance of Furthermore, in this figure,
The Y-axis and self-rotation parameters are all rQJ, and images "A", rE3J, "C", and "D" are all arranged on a straight line.

FIG. 3(c) shows the data location information setting processing unit 1 of FIG.
1 shows a screen on which the parameters of the position information 31 in FIG. 3(b) are changed and an image whose arrangement is changed by the data execution processing unit 12 in FIG. 1 is displayed.

Screen 32 replaces images rBJ and “C” and displays screen 3.
3 replaces image rAJ and "D", and then screen 3
4 is an image in which image "A" and r13J are exchanged.

FIG. 3(d) shows the data location information setting processing section 1 of FIG.
1, for the screen 32 in FIG. 3(C), FIG. 3(b)
This shows position information 35 obtained by changing the parameters of the position information 31 of . The parameter corresponding to the X-axis of image rBJ is changed to "10", and the parameter corresponding to the X-axis of image "CJ" is changed to "05".

In this way, the NC data editing processing section 10 in FIG.
In the NC command data creation device 1 having the above, it is possible to change and set the respective arrangement of the NC command data corresponding to the image information read by the scanner device 2. This eliminates the need to create original drawings for each arrangement, one by one, for parts that differ only in arrangement of characters, etc., as in this example.

Note that by registering the position information 31 or the position information 35 obtained by changing the parameters of the position information 31 in the storage device 6 shown in FIG. 1, it becomes possible to reuse it at any time. This eliminates the need to read each original image on the screen 30 with the scanner device 2 shown in FIG. 1 from now on.

Next, processing operations according to the present invention when a part having a large number of identical parts is created by the NC command data creation device 1 shown in FIG. 1 will be explained using a specific example.

FIG. 4 is an explanatory diagram showing a second example of position information and image information created by the NC command data creation device in FIG. 1.

This is an example of creating NC command data for a part in which parts of the same shape are arranged on the same circumference.

FIG. 4 <a> shows an original image 40 read by the scanner device 2 of FIG. 1, which is one tooth of a gear. This original drawing 4
NC command data DATA(5) corresponding to 0 is created by the image/command data conversion processing section 9 in FIG.

FIG. 4(b) shows an image 41 created using the original drawing 40.
is image-processed by the data execution processing unit 12 in FIG. 1 based on NC command data in which position information parameters have been set by the data position information setting processing unit 11 in FIG.
This is what is displayed on the CRT 3 in FIG.

FIG. 4(C) shows the position information 4 of the image 41 in FIG. 4(b).
2 is shown. Here, in order to create image 41, 12
DATA(5) each has a pitch angle of 30'',
It is shown that they are arranged on a circumference with a radius of 100 mm.

In this way, the NC data editing processing section 10 in FIG.
According to the NC command data creation device 1 having
By setting the parameters of the position information of the command data, it is possible to create the desired overall NC command data from one single shape of NC command data read by the scanner device.

Note that by registering the position information 42 and the like in the storage device 6 shown in FIG. 1, it can be reused at any time, and henceforth, the trouble of reading the original drawing 40 with the scanner device 2 shown in FIG. 1 can be saved.

As explained above using FIGS. 1 to 4, the NC command data creation method of this embodiment is useful when creating a large number of parts having the same shape, or when creating a large number of parts with the same shape. When creating a part having parts, desired new NC command data can be easily created by freely arranging the NC command data of the same shaped parts. Furthermore, even if corrections are necessary, there is no need to make corrections from the original drawing, and the corrections can be made directly on the display.

This eliminates the need to create an original drawing for each part to be created or modified, greatly reducing the time required to create NC command data and improving work efficiency.

[Effects of the Invention] According to the present invention, NC command data for each of a plurality of parts having the same shape parts is created by processing only the same shape parts, reducing the creation time of NC command data, and eliminating NG.
It is possible to improve the efficiency of processing operations.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, FIG. 1 is a block diagram showing an embodiment of the configuration of an NC machining system according to the present invention, and FIG. 2 shows the NC command data creation device in FIG. 1. FIG. 3 is an explanatory diagram showing a first example of position information and image information created by the NC command data creation device in FIG. 1; The figure is an explanatory diagram showing a second example of position information and image information created by the NC command data creation device in FIG. 1. 1: NC command data creation device, 2: Scanner device, 3:
CRT, 4: keyboard, 5: mouse. 6: Storage device, 7: NC machining device, 8: Central processing control unit, 9: Image/command data conversion processing unit, 10° NC data editing processing unit, 1]・Data position information setting processing unit, 12
Data execution processing unit, 13 Data registration processing unit, 30
Screen, 31 - Position information, 32 to 34: Image, 35: Position information, 40: Original drawing, 41: Image, 429 Position information. -': Figure 3 (Part 1) (a) <IJ-)ATA(')><DAi"A(2+>
(J)A 'I'-A(31><DAi', ~4
)〉Figure 3 (Part 2) (cl Figure 4 (Part 1) (a) < DATA (5) > Figure 4 (Part 2) (c)

Claims (2)

[Claims] (1) In the NC command data creation method of an NC command data creation device that creates NC command data used for drive control of an NC machine tool based on image information corresponding to an original drawing inputted with an image input device, the plurality of data created above are used. Position information is added to each of the NC command data based on instructions from the operator, and based on the position information, the multiple NC
A method for creating NC command data, which comprises arranging each piece of command data to create new NC command data. (2) The method for creating NC command data according to claim 1, characterized in that, based on the position information, a plurality of pieces of one NC command data are arranged on the same circumference to create new NC command data. How to create NC command data.