JPH039404A - Nc data edition system - Google Patents

Abstract

PURPOSE:To rapidly and accurately edit NC data by successively applying conversion processing regulated by a conversion matrix to NC data and resetting converted NC data as edited NC data. CONSTITUTION:While referring to the initial screen, an operator stores a system program stored in a floppy disk(FL) 1 in a RAM 3 and sets up the program number of NC data to be edited in a CPU 1. The CPU 1 automatically defines a position converting matrix or a mirror converting matrix only by programming a command code for regulating conversion processing and data for concreting the conversion processing in the previously formed NC data and multiplies a point defined by the previously formed NC data by each of these conversion matrixes to allow an automatic programming device to automatically edit NC data. Consequently, the time required for the edition work of the NC data can be shortened and the reliability of the edited NC data itself can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to NC data editing methods, particularly three-dimensional and two-dimensional
The present invention relates to an NC data editing method that automatically edits NC data by performing various conversion processes on NC data given in dimensions.

BACKGROUND OF THE INVENTION Conventionally, when performing various edits on NC data created in advance, for example, N
When editing NC data for machining by correcting the positional deviation of C data, or when editing new NC data by performing mirror conversion on already created NC data, use the previously created NC data. Manually calculates the destination of the point defined in the NC data according to the NC data, the amount of positional deviation of the NC data, the set position of the mirror, etc., and resets the calculated destination value as the NC data. Editing is done by doing this.

Problems to be Solved by the Invention In the above-mentioned prior art, complicated manual calculations are required when editing NC data, so it takes a lot of time to edit the NC data, and errors occur during the manual calculation stage. Since this is likely to occur, there is a drawback that the reliability of the edited NC data is low.

SUMMARY OF THE INVENTION An object of the present invention is to provide an NC data editing method that eliminates these drawbacks of the prior art and allows NC data to be edited quickly and accurately based on previously created NC data.

Means for Solving the Problems The present invention programs a code that defines a conversion process to be executed when editing NC data and data for embodying the conversion process into NC data created in advance. At the stage of editing the NC data that has been created using an automatic programming device, a transformation matrix is calculated based on the code that defines the transformation process and the data that embodies the transformation process. , the above problem is solved by sequentially executing the conversion process defined by the conversion matrix and resetting the converted NC data as edited NC data.

That is, when editing NC data for machining by position conversion correction of NC data created in advance, a position conversion command code that defines an arbitrary reference point and a corresponding point to which the reference point is moved is provided, and the above An arbitrary reference point and a corresponding point corresponding to the reference point are programmed into the NC data along with a position conversion command code, and an automatic programming device calculates a position conversion matrix from the programmed reference point and its corresponding point. After the position conversion matrix is defined by the conversion command code, the positions of the points defined by the NC data are converted using the position conversion matrix until the conversion cancellation command is read, and the NC data is edited.

In this case, if the NC data created in advance is three-dimensional data, three reference points and corresponding points corresponding to the reference points are programmed into the NC data as data that embodies the position conversion. A position transformation matrix is obtained from the three reference points and their corresponding points, while the previously created NC
If the data is two-dimensional data, two reference points and corresponding points corresponding to the reference points are programmed into the NC data as data that embodies the position transformation, and the two programmed reference points and their corresponding points are programmed into the NC data. Find the position transformation matrix.

In addition, when editing new NC data by performing mirror transformation on already created NC data, define a mirror transformation matrix using a mirror placed at the midpoint between two points and perpendicular to the straight line connecting the two points. A mirror conversion code is provided for
With the mirror conversion code above, convert any two points to NC'C-
A mirror conversion matrix is defined by programming the data, and the NC data after the mirror definition is all mirror converted until a conversion cancellation command is read, and the NC data is edited.

Furthermore, if multiple codes specifying conversion processing are simultaneously programmed into the NC data, N for embodying each code and the conversion processing specified by each code.
Find a transformation matrix for the transformation process corresponding to each code based on the C data, define a transformation matrix multiplied by each transformation matrix, and sequentially execute the transformation process specified by the transformation matrix on the subsequent NC data. The above problem is solved by resetting the converted NC data as edited NC data.

That is, when editing new NC data by simultaneously programming mirror transformation and position transformation correction into already created NC data, the mirror transformation matrix and the position transformation matrix are created using the mirror transformation code and the position transformation command code. After the transformation matrix is defined, the points defined by the NC data are transformed with the transformation matrix until the transformation cancellation command is read. Edit the NC data.

A code that defines the conversion process to be executed when editing the action NC data and data for embodying the conversion process are programmed into previously created NC data.

The automatic programming device obtains a transformation matrix based on the code programmed in the NC data and data for embodying the transformation process, and after the transformation matrix is defined, the
The points defined by the data are converted using the conversion matrix until the conversion cancellation command is read, and the NC data is edited. In addition, when multiple codes that specify conversion processing are programmed simultaneously in NC data, conversion corresponding to each code is performed based on the NC data to embody each code and the conversion processing specified by each code. Find the transformation matrix of the process,
A transformation matrix is defined by multiplying each transformation matrix, and the NC data is edited by transforming the points defined by the NC data using the transformation matrix until a transformation cancellation command is read.

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

FIG. 3 is a block diagram showing the main parts of an automatic programming device according to an embodiment of the present invention, in which 1 is a processor (hereinafter referred to as CPU), and 2 is a control for controlling the automatic programming device. R where the program is stored
OM, 3 is a RAM equipped with a storage area for storing the loaded system program and a storage area for storing the results of arithmetic processing by the CPU 1, and 4 is NC data for storing loaded NC data and edited NC data. A storage memory, 5 a keyboard, 6 a disk controller, and 7 a graphic display (hereinafter referred to as CRT), each of these elements 1 to 7 being connected by a bus 8.

FLI and FL2 are floppy disks that serve as external storage devices.The floppy disk FLI stores various system programs, and the floppy disk FL2
Already created NC data etc. are stored in the . The above floppy disk FLI contains information for creating and
In addition to various conventional programs for executing corrections, a program for implementing the method of the present invention, that is, an "rNC data editing processing program" (see FIGS. 1 and 2) is stored as a system program.

Hereinafter, an embodiment of this method will be described based on flowcharts shown in FIGS. 1 and 2 showing an outline of the "NC data editing processing program".

When the automatic programming device is powered on and the floppy disk FLI is set in the disk controller 6, the CPU is driven according to the control program in the ROM2.
I displays an initial screen for selecting a system program on the display screen of the CRT 7.

The operator refers to the initial screen and operates the key to select the "system program" to transfer the "system program" stored in the floppy disk FLI to the RAM.
3, and also sets the program number of the NC data to be edited on the CPUI via the keyboard 5. Note that if the NC data to be edited is not stored in the NC data storage memory 4, the floppy disk FL2 storing the NC data is set in the disk controller 6.

The CPU that starts processing according to the "system program" stored in RAM 3 selects the NC that has the program number to be edited based on the set program number.
reads the data from the NC data storage memory 4 or the floppy disk FL2 and stores it in the RAM 3 as original data (step 5101), displays a message on the display screen of the CRT 7 asking whether or not the original data needs to be corrected; A standby state is entered in which it waits for the operator's judgment and key human power based on the judgment (step 8102). If it is determined that the original data needs to be corrected and the correction execution key is operated, the flag F that is set when the data conversion process is executed is reset (step 5103), and the editor function of the automatic programming device , as in the past, the original data is corrected by executing normal data correction processing, and the corrected original data is stored again in the RAM 3 (step 5104). wait.

If further correction of the original data is necessary, operate the correction execution key again until the correction of the original data is completed in step 5.
The data correction process of 104 is repeatedly executed.

If the modification of the original data is completed, and step 51
If there is no need to modify the original data stored in the RAM 3 in step 01, if the "N" key is pressed in response to the question of whether to modify the original data, the process moves to step 5105 and data conversion processing is performed. It is determined whether flag F, which is set when is executed, has already been set. However, since flag F is not set at this stage, the process then moves to step 5106, and the data for editing the original data is determined. Start the conversion process.

After completing the modification of the original data, the NC data as shown in Fig. 4 is finally converted into RA as the original data.
The explanation will continue assuming that it is stored in M3.

FIG. 4 is a conceptual diagram showing an example of NC data as original data stored in the RAM 3, and the program number of the NC data is indicated by r012345J. rGOIJ
is a conventional linear interpolation code that defines linear interpolation between two points on the XY-23 dimensional coordinate system, and is modally applied to the movement command block set by XYZ.

"GD3..." is a code for specifying the conversion process provided for this embodiment, and among these codes, rG98PI
J~rG98P3J is a position conversion command code, which defines moving an arbitrary reference point programmed in the NC data in XYZ to a corresponding point set in IJK in order to embody the conversion process, and , rG98P
OJ is a mirror conversion code, and in order to embody the conversion process, N
A mirror transformation by a mirror placed at the midpoint between two arbitrary points programmed in the C data and perpendicular to the straight line connecting the two points is defined. rG99J is a conversion cancellation command code provided for this embodiment, and has a function of canceling one conversion process defined by a code for specifying a conversion process.

The CPU which started the data conversion process, which is part of the rNC data editing process program, first sets the unit matrix E in the memory M, initializes it by setting the index i to 0 (step 5201), and stores it in the RAM3. One block of the original data is read (step 5202), and it is determined whether the one block of data read this time is a block indicating the end of the original data (step S203). In the example shown in FIG. 4, first, r indicates the program number.
o 12345J is read, and since it is not a block indicating the end of the original data, the process moves to step 5204, where it is determined whether it is a conversion command block, that is, whether it is a block with a command code of rG98J. However, since it is not a conversion command block, step 5
The process moves to step 205, where it is determined whether or not it is a movement command block.

Since it is not a movement command block, step 820
6, it is determined whether or not it is a conversion command cancellation block, that is, whether it is a block with a command code of "G99", but since it is not a conversion command cancellation block, the block 1 read this time The data of the block, that is, the program number ro 12345J is directly written into the post-conversion data storage area of the RAM 3 as data after the data conversion process has been executed (step S207).

Next, the CPU reads the next block of the original data stored in the RAM 3 (step 5202), and determines whether the block of data read this time is a block indicating the end of the original data (step 5202). Step S 203
). In the example shown in FIG. 4, rG98PIXzaYy
aZraliaJjaKkaJ is read, and since it is not a block indicating the end of the original data, step 52 is then executed.
04 and determines whether it is a conversion command block, that is,
It is determined whether the block has an instruction code of rG98J. Since the block is a conversion command block having the command code rG98J, step 820
8, whether or not the rG98J command code in the block is modified with "PO", that is,
Determine whether it is a mirror conversion code. Since the command code of the relevant block is not modified with "PO" and is not a mirror conversion code, the process moves to step 3209, and it is determined whether the command code of the relevant block is modified with "P3". However, since the command code of the block is not modified with "P3", the process moves to step 5210 and executes the conversion command block, that is, the position conversion command code "098PIJ" and the position conversion process using the code. The coordinates rxa, 7a of the first reference point are data for embodying.

zaJ and the coordinates "ia, ja, kaJ" of the first corresponding point to which the first reference point is to be moved are temporarily stored in a register.

Next, the CPU 1 reads the next block of the original data stored in the RAM 3 (step 5202), and determines whether the block of data read this time is a block indicating the end of the original data (step 5202). Step 5203)
. The example shown in FIG. 4, rG98 P2XxbY7
bZxbI ibJ 1bKkbJ is read, and since it is not a block indicating the end of the original data, the process moves to step 5204, where it is determined whether it is a conversion command block, that is, whether it is a block with a command code of rG98J. be done. Since the block is a conversion command block having the rG98j command code, step 8
In step 208, it is determined whether the rG98J command code in the block is modified with rPOJ, that is, whether it is a mirror conversion code. Since the command code of the block is not modified with rPOJ and is not a mirror conversion code, the process moves to step 5209, and it is determined whether the command code of the block is modified with "P3". However, since the command code of the block is not modified with "P3", the process moves to step 5210 and specifically executes the conversion command block, that is, the position conversion command code "698P2J" and the position conversion process using this code. The coordinates of the second reference point, rxb, 7b, which are the data for converting.

zb'' and the coordinates rib, ib, kbJ of the second corresponding point, which is the corresponding point to which the second reference point is to be moved, are temporarily stored in a register.

Next, the CPU 1 reads the next block of the original data stored in the RAM 3 (step 5202), and determines whether the block of data read this time is a block indicating the end of the original data (step 5202). Step 5203).

In the example shown in FIG.
"Weigher" is read and steps 5203 and 5204
, 5208, the process moves to step 5209, and it is determined whether or not the command code of the block is modified with "P3". The command code for the block is "P3"
This means that all the various data for defining one position transformation matrix have been read and stored.

Therefore, the CPU 1 moves to step 5211, and stores the data stored in each register in the previous processing, the position conversion command block of one block read this time, and rG9.
One position conversion matrix Ma is calculated based on 8P3XxcY7cZxcIicJjcKkcJ.

That is, in the process of step 5211, the first reference points [xa, ya, xaJ programmed in the original data are
Move the corresponding points ria, ia, kaJ and move the second reference points rxb, 7b, zbJ to the second corresponding points rib, j
b, move to kbJ, and move to the third reference point rxc,
7c, rcJ to the third corresponding points ric, jc, kcj
A position transformation matrix Ma is defined for moving to . FIG. 5 is a conceptual diagram that briefly explains the action of the position transformation matrix Ma. The position transformation matrix Ma converts the three reference points on the X-Y-23-dimensional coordinate system into three corresponding points. It is a transformation matrix that moves in a one-to-one correspondence with the reference point, and is uniquely defined by translational movement and rotational movement that indicate the positional relationship between the reference point and the corresponding point. Therefore, the moving point r obtained by multiplying the NC data x, y, tJ indicating an arbitrary point on the X-Y-23-dimensional coordinate system and the arbitrary point by the position transformation matrix Ma
The relationship between x', y', and xJ is the same as the relationship between the reference point and the corresponding point.

The CPU that has defined the position transformation matrix Ma in this way stores the position transformation matrix Ma in the memory M indicated by the index i.
i1, i.e., stored in the memory MO (step 5212),
The matrix obtained by multiplying the matrix of memory M by the matrix of memory ~10 is stored again in memory M (step 5213), the value of index i is incremented, and the memory Mi is secured to store the transformation matrix defined next (step 5213). Step S214). Since the initial value of the memory M is the unit matrix E, the position conversion matrix Ma is currently stored in the memory M.

Next, the CPU 1 reads the next block of the original data stored in the RAM 3 (step 5202), and determines whether the block of data read this time is a block indicating the end of the original data (step 5202). Step S 203
). The example shown in FIG. 4 is rG98POXxdYy
dZxdIidJidKkdJ is read, and since it is not a block indicating the end of the original data, next step 52
04 and determines whether it is a conversion command block, that is,
It is determined whether the block has a command code of "GD3" or not. Since the block is a conversion command block having the command code rG98J, step 520
8, whether or not the rG98J command code in the block is modified with "PO", that is,
Determine whether it is a mirror conversion code. Since the command code of the block has a mirror conversion code modified with rPOJ, the CPU 1 moves to step 5214 and converts the currently read conversion command block, rG98PO
XXdY7dZzdlidJ jdKkdJ l: Base tweet, calculate one mirror transformation matrix Mb.

That is, in the process of step 5215, arbitrary two points "xd, yd, zdJ and ri" programmed in the original data are
A mirror transformation matrix Mb is defined by a mirror placed at the midpoint of d, jd, and kdJ and perpendicular to the straight line connecting the two points. FIG. 6 is a conceptual diagram briefly explaining the action of the mirror transformation matrix Mb, and the mirror transformation matrix Mb is
-2 Any two points on the 3-dimensional coordinate system rxd, 7d, x
The mirror transformation is shown based on the plane π, which is placed at the midpoint between dJ, rid, id, and kdJ and is orthogonal to the straight line connecting these two points. In the example shown in FIG.
l',! +') is the point (x+I1. yel+!+
l+), and the point (!2', Y2', !2
) is converted to a point (x2”, Y2”, !2”), and the point (!3’, Y3’, x3’) is converted to a point (X3”, Y3”, 23”) becomes. The mirror transformation matrix Mb is a transformation matrix uniquely defined by the plane π.

CPU that defined the mirror transformation matrix Mb in this way
is the incremented index i of the mirror transformation matrix Mb
(step 5216), the memory M1 is stored in the memory M1 indicated by
Step 5: Restore the matrix multiplied by the matrix in memory M.
213), the value of index i is incremented to reserve memory for storing the transformation matrix defined next (step 5214). Therefore, the memory M currently stores a matrix obtained by multiplying the position transformation matrix Ma and the mirror transformation matrix Mb,
This means that position transformation and mirror transformation are defined at the same time,
Also, the value of the index i has been updated to 2.

Next, CPU 1 reads the next block of original data stored in RAM 3 (step 5202).
), it is determined whether one block of data read this time is a block indicating the end of the original data (step 52).
03). In the example shown in FIG. 4, r G OI Xx
Since lYylZ xlJ is read and is not a block indicating the end of the original data, the process moves to step 5204 and checks whether it is a conversion command block, that is, rG98J
However, since it is not a conversion command block, the process proceeds to step 5205, where it is determined whether it is a movement command block. Since the block in question is a movement command block, the process moves to step 5217, and the movement command point defined by the block read this time, that is, the point rxl,
Conversion processing is performed on yl and III. That is, C
PUI is the movement command point data rx set in the original data.
Multiply l, yl, III by the transformation matrix stored in memory M to obtain the transformed position a l"Xl", 71",
! Find l''J. Since the transformation matrix stored in the memory M is a matrix obtained by multiplying the position transformation matrix Ma and the mirror transformation matrix Mb, the position transformation and mirror transformation are performed simultaneously for the points rx1.yl, III. 7th
The figure conceptually shows the transformation process performed by the transformation matrix stored in the memory M, where the points rrl, Y
l, III are points rxl' by the position transformation matrix Ma
, yl'21', and from the positions of the points rxl, II, zll J, the point rxi' is further transformed by the mirror transformation matrix Mb with the plane π as a reference.
, 71"xi"j. However, in the CPUI operation, since a matrix obtained by multiplying the position transformation matrix Ma and the mirror transformation matrix Mb is stored in advance in the memory M, the movement command point data "!1゜yl, xl
Based on J and the transformation matrix stored in memory M, the transformed position rxt"+yl",xl"J is immediately calculated.

The movement command points rxl, yl, III defined by the 1 block read this time are converted and the converted positions rxl'', , III, zIIIJ are calculated.
PU1 is the position after conversion rxl”, 71”, Yl”
J is written into the converted data storage area of the RAM 3 as data after execution of the conversion process (step S207).

Next, the CPUI reads the next block of the original data (step 5202), and then proceeds to step 520 in the same manner as above.
2-Step 5203-Step 5204-Step 5
205-Step 5217-Execute the processing of step 5207 and move command point data rx2 set in the original data
．． T2. ! 2J and rx3. y3. The converted position of z3J is ``, 2+ + , , 211x2'l and rx3''I, y3+1. ．． 311J is calculated (Step 5217), RA
Write to the converted data storage area of M3 (step 520
7). FIG. 8 is a conceptual diagram showing the data written to the converted data storage area of RAM 3. At this stage, the program written as original data without being converted is stored in the converted data storage area. number r012345J, linear interpolation code rGOIJ, and step 521
The position of the point B r converted from the original data by the process in step 7
xl”, 71”, ! 1”J, rx2”, 7
2”, !2”Jrx3”, 73”, ! 3” J is written on the letter.

Next, the CPU reads the next block of the original data stored in the RAM 3 (step 5202), and determines whether the block of data read this time is a block indicating the end of the original data (step 5202). Step S 203
). In the example shown in FIG. 4, rG99J is loaded,
Since the block does not indicate the end of the original data, the process then proceeds to step 5204, where it is determined whether it is a conversion command block, that is, whether it is a block with a command code of l'-G98J. Since it is not a conversion command block, the process then proceeds to step 5205, where it is determined whether it is a movement command block.

Since it is not a movement command block, step 820
6, it is determined whether the block is a conversion command cancel block, that is, whether the block has a command code of "G99". Since the block in question is a conversion command cancellation block having the command code rG99J, the process moves to step 5218, and the memory M(i-1) indicated by the index i in the conversion matrix stored in the memory M, that is, the current The memory M1 is multiplied by the inverse matrix of the transformation matrix stored in the latest memory that stores one transformation matrix, that is, the inverse matrix of the mirror transformation matrix Mb, and the obtained matrix is stored again in the memory M. Therefore, the transformation matrix currently stored in the memory M is Ma*Mb*Mb-'=Ma, which means that the definition for mirror transformation has been canceled, and the transformation matrix for position transformation by the position transformation matrix Ma is Only the definition is valid. Therefore, the mirror transformation matrix M is stored in the memory M1.
There is no need to store b, and the CPU 1 decrements the value of the index i so that i=1, and reserves the memory Ml as a memory for the transformation matrix defined next (
Step S219).

Next, the CPU 1 reads the original data stored in the RAM 3,
That is, rG99J is read (step 5202), and in the same manner as above, steps 5203-step 8204-
After performing the determination processing in steps 5205 to 8206, the processing in step 5218 is performed again. That is, the CPUI stores the transformation matrix stored in the memory M(i-1) indicated by the index i, that is, the current memory MO, which is the latest memory that stores one transformation matrix. The inverse matrix of the transformation matrix, that is, the position transformation matrix M
Multiply the inverse matrix of a and store the resulting matrix back into memory M. Therefore, the transformation matrix currently stored in the memory M is Ma*Ma-'=E, which means that the definition for the position transformation has been canceled following the definition for the mirror transformation. The value of M becomes the unit matrix E and returns to the initial state. Therefore, there is no need to store the position transformation matrix Ma in the memory MO, and the CPU decrements the value of the index i so that i=0, and sets the memory MO as a memory for the transformation matrix to be defined next. (Step 5219).

Thereafter, in the same manner as described above, the CPU sequentially reads the next block of the original data stored in the RAM 3 (step 5202), and determines whether or not the block indicates the end of the original data. 5203), the read block is the conversion command block "G98..." (step 5204), and the position conversion command code r
If the block has G98PIJ, rG98P2J, rG98P3J, the first reference point and the first corresponding point, the second reference point and the second corresponding point, and the third reference point and the third
The corresponding points are sequentially read and stored, and the position transformation matrix Ma is calculated from the data of these points to define the position transformation (step 5211), and the mirror transformation code rG 98 P
If the block has OJ, the mirror transformation matrix Mb is calculated based on two arbitrary points set in the original data and the mirror transformation is defined (Step 5215), and the defined transformation matrix is sequentially stored in the new memory Mi. At the same time as storing (Step S212. Step 5216), the memo IJM whose initial value is the unit matrix E is multiplied by the transformation matrix defined above and stored again, so that the number and type of transformation matrices defined are not affected. Instead, create and define a transformation matrix M that is equivalent to the composite of these transformation matrices.
3) Increment the value of index i step 521
4) At the stage where the command code of rGOIJ indicating the movement command block is read (step 5205), the definition point data of the original data following the command code rGOIJ is multiplied by the conversion matrix M to perform a conversion process, and step 5217 )
, while sequentially writing to the converted data storage area of RAM3 (
Step 5207), when the conversion command cancellation block is read, the conversion matrix M is multiplied by the inverse matrix of the memory M(i-1) that stores the latest conversion matrix, and the memory M
5218), and also the read one
If the original data of the block is neither a conversion command block, a movement command block, nor a conversion command cancel block, the read original data of one block is written directly to the post-conversion data storage area of RAM 3 as the data after execution of the conversion process. (Step S 206. Step 52
07).

Moreover, FIG. 9 is a conceptual diagram showing another example of the original data,
This example differs from the example shown in FIG. 4 in that the mirror conversion code rG98POJ is not set.

In this case, in the data conversion process, the first reference points ``xa, 7a, zaJ'' programmed in the original data are moved to the first corresponding points ria, ja, kaJ, and the second reference points ``xb, 7b, rbJ'' are moved. second corresponding point rib,
ib, kbJ, and the third reference point rIe
, 7c, rcJ as the third corresponding point ric, ic, k
Only the position transformation matrix Ma for moving to cJ is defined, and by position transformation Ma as shown in FIG.
The program number “Q” is stored in the data storage area of M3 after conversion.
12345'', the linear interpolation code ``Gol'', and the position of the point converted by multiplying the original data by the position transformation matrix Ma rxl', yl', xl' J, r
x2', y2'! 2' J, rx3',
y3', x3' J will be written (first
(See figure 0).

Furthermore, as shown in FIG. 11, in the original data in which position conversion command codes rG98PIJ to rG98P3J are not programmed, any two points rxd, 7d,
Only the mirror transformation based on the plane π, which is placed at the midpoint between xdJ, rid, id, and kdJ and perpendicular to the straight line connecting these two points, is defined, and by the mirror transformation Mb as shown in FIG. The post-conversion data storage area contains the program number r012345J, the linear interpolation code rGOIJ, and the mirror transformation matrix Mb for the original data.
The position of the point converted by multiplying by rxl", 71", xi
"j, rx2"y2", !2"J, rx
3”, 73”, ! 3'J will be written (
(See Figure 12).

Finally, a block indicating the end of the original data, such as a program end code such as rMO2J, is read, and the above data conversion process is executed for all blocks of the original data corresponding to the set program number. Then, the CPUI sets a flag F indicating that the - series data conversion process has been completed (step 5220).
The process moves to step 5107 of NC data editing processing.

CP that has moved to step 5107 of NC data editing processing
The UI draws a tool trajectory on the display screen of the CRT 7 based on the data after execution of the conversion process written in the post-conversion data storage area of the RAM 3, and when the edit end key or try key on the keyboard 5 is operated. The CPU enters a standby state in which it waits for (step S108).

The operator looks at the drawn tool trajectory and obtains the desired NC data, that is, the tool trajectory, by the data correction process executed in step 5104 of the NC data editing process and the position conversion and mirror conversion executed by the data conversion process. If it is determined that the NC data is not the desired NC data, the retry key on the keyboard 5 is operated.

The CPU moves to step 5102, displays a message on the display screen of the CRT 7 asking whether or not correction of the original data is necessary, and enters a standby state waiting for the operator's judgment and key human power based on the judgment. (Step 31.
02).

If it is determined that the original data needs to be corrected and the correction execution key is operated, the flag F set when executing the data conversion process is reset (step 5103).
, the editor function of the automatic programming device executes normal data modification processing to modify the original data as in the past, and stores the modified original data in the RAM 3 again (step 5104), returning to step 5102 again. and wait for operator judgment and key human power. If further correction of the original data is necessary, operate the correction execution key again until the correction of the original data is completed in step 5104.
Repeat the data correction process.

When the modification of the original data is completed, the escape key on the keyboard 5 is operated, and the process proceeds to step 5105, where it is determined whether flag F is set. Since the flag F is reset when the data correction process is executed, the CPU moves to step 8106 and executes a series of data conversion processes on the corrected original data in the same manner as above, and then RA by executing the conversion process
Based on the data written to the post-conversion data storage area of M3, draw the tool trajectory again on the display screen of CRT7,
Enters a standby state waiting for the edit end key or try key on the keyboard 5 to be operated (step 5108)
.

On the other hand, if it is determined in step 5102 immediately after the end of the data conversion process that correction of the original data is not necessary and the escape key is operated, the process moves to step 5105 and it is determined whether flag F is set. But,
In this case, since flag F remains set, the process then moves to step 5109, and data correction is required for the data written to the post-conversion data storage area of RAM3, that is, the data after execution of the conversion process. A message inquiring as to whether or not this is the case is displayed on the display screen of the CRT 7, and the system enters a standby state in which it waits for the operator's judgment and key human power based on the judgment.

If it is determined that the data after conversion processing needs to be corrected and the correction execution key is operated, step 5 is executed.
104, the editor function of the automatic programming device executes normal data modification processing on the data after the conversion processing, and after modifying the data written in the post-conversion data storage area of RAM3, the original A message asking whether data correction is necessary is displayed on the display screen of the CRT 7, and the system enters a standby state waiting for the operator's judgment and key human power based on the judgment (step 5102).
. Normally, if it is determined in step 5102 immediately after the end of the data conversion process that correction of the original data is not necessary, it is determined that the tool trajectory drawn on the display screen of the CRT 7 approximates the desired NC data. This means that there is no need to modify the original data at this stage, and the operator operates the escape key. CPUI step 5105
Step 1 is then executed to determine whether flag F is set. However, in this case, the optical data has not been corrected and flag F remains set, so step 1 is then executed.
09 and displays a message on the CRT asking whether or not data correction is necessary for the data after the conversion process has been executed.
7 on the display screen, and enters a standby state again to wait for the operator's judgment and key human power based on the judgment. If further corrections are required to the data after the conversion process has been executed,
The correction execution key is operated again, and the data correction processing in step 5104 is repeatedly executed until the correction of the data after execution of the conversion processing is completed. Then, when the modification of the data after execution of the conversion process is completed, the operator operates the escape key.

The CPU moves to step 5107, draws a tool trajectory on the display screen of the CRT 7 based on the corrected data after execution of the conversion process (written in the post-conversion data storage area of the RAM 3), and draws the tool path on the display screen of the CRT 7. The process enters a standby state in which it waits for the edit end key or try key to be operated (step 5108).

In this way, you can make corrections to the original data (step S102, step 5104), or make corrections to the data after execution of the conversion process (step S109, step 5104). While drawing the desired NC (step 5107), the desired NC
Once it is determined that the data has been obtained (step $108
), operate the editing end key on the keyboard 5 to output the NC data written in the post-conversion data storage area of the RAM 3 to the floppy disk FL2 via the NC data storage memory 4 or the disk controller 6, and output the edited NC data to the floppy disk FL2 via the NC data storage memory 4 or the disk controller 6.
After storing it as data (step 5110), flag F is initialized (step 5111), and the NC data editing process ends.

As described above, according to the NC data editing process of this embodiment, after editing the NC data by performing the desired data conversion process on the definition points defined in the original data, the edited N
A tool trajectory is drawn on the display screen of the CRT7 based on the C data, and the operator visually determines whether the edited NC data is appropriate. If the tool trajectory is inappropriate, the original It is possible to make appropriate corrections to both the data and the edited NC data and edit the NC data again, making it possible to perform the editing work of the NC data very smoothly.

In the data conversion process that converts the original data, position conversion command codes rG98P1" to "G98P3" are added to the previously created NC data, that is, the original data.
, and by programming the reference points and corresponding points to embody these position conversion command codes, position conversion can be easily defined, and pre-created NC
Even if there is a positional shift in the data, there is no need to correct each individual data by manual calculation, and when performing mirror conversion, use the mirror conversion code "G98PO"
, and any two points to embody the mirror conversion code, and no complicated arithmetic processing is required.

Further, regardless of the type and number of defined positional transformations and mirror transformations, the automatic programming device can easily perform desired transformation processing and edit MC data.

In addition, since the command code rG99J, which is a conversion cancellation command, cancels only the latest defined conversion command,
If multiple transformation matrices are defined, only some of the transformation commands can be canceled.

Above, as an example, the case where the NC data created in advance, that is, the original data is three-dimensional NC data has been described, but the case where the original data is two-dimensional NC data is almost the same as above. There are two position conversion command codes, two sets of reference points and corresponding points to embody the position transformation command codes, and two sets of reference points and corresponding points to embody the above reference points and mirror transformation codes. The only difference from the present embodiment is that arbitrary two points of are programmed in a two-dimensional array.

In addition, rG98PIJ, rG98P2J, rG
Position conversion command codes such as 98P3j are not necessarily
It is not necessary to set a plurality of points depending on the number of reference points and corresponding points, and it is also possible to operate modally, such as in the conventional command code "rG01" indicating linear interpolation.

Effects of the Invention According to the NC data editing method of the present invention, a command code that defines a conversion process and data for embodying the conversion process using the command code are added to r4C data created in advance, that is, in position conversion, Just by programming the reference point and corresponding points, or any two points in mirror transformation, the position transformation matrix and mirror transformation matrix are automatically defined, and these points are applied to the points defined by the previously created NC data. Since the automatic programming device automatically edits the NC data by multiplying it by a conversion matrix, the complicated manual calculations required in the past are not required when editing the NC data, and the time required for editing work is reduced. shortened and also
The reliability of the edited NC data itself is also high.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing NC data editing processing in an embodiment of the method of the present invention, and FIG.
A flowchart showing data conversion processing which is a part of data editing processing, FIG. 3 is a block diagram showing main parts of an automatic programming device of an embodiment implementing the method of the present invention, and FIG. 4 shows NC processing as original data. A conceptual diagram showing an example of data; FIG. 5 is a diagram conceptually explaining the action of the position transformation matrix in the same embodiment; FIG. 6 is a diagram conceptually explaining the action of the mirror transformation matrix in the embodiment; FIG. 7 is a diagram conceptually explaining the effect when a position transformation matrix and a mirror transformation matrix are defined simultaneously in the same embodiment, and FIG. 8 shows data edited corresponding to the original data of FIG. 4. 9 is a conceptual diagram showing another example of NC data as original data, FIG. 10 is a conceptual diagram showing data edited corresponding to the original data in FIG. 9, and FIG. 11 is a conceptual diagram showing another example of NC data as original data. N as original data
A conceptual diagram showing yet another example of C data, Fig. 12 is the first
FIG. 1 is a conceptual diagram showing data edited corresponding to the original data of FIG. 1; 1... Processor (CPU), 2... ROM. 3...RAM, 4...NC data storage memory, 5.
...Keyboard, 6...Disk controller, 7.
・Graphic display (CRT), 8...
Bus, FLI, FL2...floppy disk. FL2 fxl, yl, zl l th

Claims (5)

[Claims] (1) In the NC data editing method using an automatic programming device, a position conversion command code that defines an arbitrary reference point and a corresponding point to which the reference point is moved is provided, and together with the position conversion command code, the reference point and its reference point are The corresponding corresponding points are programmed into the NC data, and the automatic programming device calculates a position transformation matrix from the programmed reference points and their corresponding points. After the position transformation matrix is defined with the above position transformation command code, the transformation An NC data editing method characterized in that points defined by NC data are position-transformed using the above-mentioned position transformation matrix until a release command is read, and the NC data is edited. (2) If the above NC data is three-dimensional data, program three arbitrary reference points and each corresponding point corresponding to the reference point in the NC data together with the position conversion command code,
3 programmed by automatic programming device
2. The NC data editing method according to claim 1, wherein a position transformation matrix is obtained from two reference points and their corresponding points. (3) If the above NC data is two-dimensional data, program two arbitrary reference points and the corresponding points corresponding to the reference points together with the position conversion command code in the NC data, and then program using an automatic programming device. 2. The NC data editing method according to claim 1, wherein a position transformation matrix is obtained from the two reference points and their corresponding points. (4) Provide a mirror conversion code to define a mirror conversion matrix using a mirror placed at the midpoint of two points and perpendicular to the straight line connecting the two points, and use the above mirror conversion code to convert any two points into NC data. The NC data editing method is characterized in that a mirror conversion matrix is defined by programming, and the NC data after the mirror definition is mirror converted until a conversion cancellation command is read and the NC data is edited. (5) A mirror conversion code is provided to define a mirror conversion matrix using a mirror placed at the midpoint of two points and perpendicular to the straight line connecting the two points, and along with the above mirror conversion code, any two points can be converted into NC data. While defining a mirror transformation matrix by programming, a position transformation command code that defines an arbitrary reference point and a corresponding point to which the reference point is moved is provided, and along with the above position transformation command code, the mirror transformation matrix is By programming the corresponding corresponding points into the NC data, a position transformation matrix is obtained from the reference point and its corresponding point, and both the mirror transformation matrix and the position transformation matrix are defined by the above mirror transformation code and the above position transformation command code. In this case, a transformation matrix is obtained by multiplying the mirror transformation matrix and the position transformation matrix, and after the transformation matrix is defined, the points defined by the NC data are transformed with the transformation matrix until the transformation cancellation command is read. An NC data editing method characterized by editing NC data.