JPS6289113A - Numerical control device - Google Patents

Abstract

PURPOSE:To make unnecessary both preparations of a processing program and to obtain a soft processing program by designating a correcting number with a processing program, removing a correcting quantity from a correcting register and changing only the value of the correcting quantity even when respective coordinate transformation data are changed. CONSTITUTION:A coordinate transformation register 16 can plurally store the transformation type, the transformation data and the correcting number, can set them to a data accommodating device 12 and impressed the data to a coordinate transformer 32. A key input 18 is operated by the operator at the time of the processing arrangement, the correcting quantity is set corresponding to the correcting number of the coordinate transformation and stored into a correcting register 20. The correcting register 20 can store plural correcting quantities corresponding to the correcting number and impresses the correcting quantity to the coordinate transformer 32. The coordinate transformer 32 executes the coordinate transformation processing for the shifting data in accordance with the contents of the coordinate transformation register 16 and the contents of the correcting register 20.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a numerical control (hereinafter abbreviated as NC) device aiming at flexibility in programming.

[Conventional technology]

As a conventional device of this kind, the one shown in FIG. 3 is different. In the figure, 5o is an input medium, for example, a paper tape, and the processing information is read into the input section 52, and the processing information and the operation section 6
Based on the contents of 2, the machining trajectory is calculated by the calculation unit 54. The output signal of the calculation section 54 is applied to the control section 56, and the control section 56 operates the drive section 5 based on the contents of the operation section 62.
A control signal is output to the drive unit 58, and the machining of the machine tool 6° is controlled by this drive unit 58. The operation unit 62 receives processing instructions (for example, override) from the operator and converts them to the calculation unit 54.
and is applied to the control unit 56.

In the conventional device, the machine tool 60 is numerically controlled based on the processing information of the machine program given from the input medium 50 such as a paper tape, but the processing information is normally specified by the processing information given to the calculation section 54. Coordinate transformation is performed with priority given to linear interpolation, etc.

FIG. 4 is a block diagram of the calculation unit 50 that performs coordinate transformation processing. In the figure, 10 is a program analyzer that extracts movement data and coordinate transformation data from the processing information of the Canadian program, and 12 is a program analyzer that extracts movement data and coordinate transformation data from the processing information of the Canadian program. 14 is a coordinate conversion register that stores a plurality of coordinate conversion data; 30 is a coordinate converter that performs coordinate conversion processing on movement data according to the contents of the coordinate conversion register 14; be.

The coordinate converter 30 consists of 34.36.40.44.

Here, 34 is a conversion controller that receives movement data and commands from the coordinate conversion register 14 and controls each coordinate converter 36, 40, and 44, 3G is a parallel movement converter that moves movement data in parallel, and 40 is a movement converter. A rotary movement converter 44 is a scaling converter 5 that scales the movement data.Next, before explaining each operation, the addition program for coordinate conversion will be explained.

First, parallel translation conversion is performed using EIA 7-ohmat G52X.
xi yyi ppt; where G52 indicates the translation type, (xi, yi) indicates the translation information, and pi indicates the conversion priority.

In addition, rotational movement conversion is EIA 7-ohm G22A
θ1Ppi;, G22 is the rotational movement type, θi is the rotational movement information,
Let pi indicate the conversion priority.

Scaling conversion is 051 Xn in EIA format.
s YVs Kk ppt ;, G51 indicates the scaling conversion type, (+¥S ey8 ) and k indicate the scaling information, and pi indicates the conversion priority.

And the movement command is G90 GOI in EIA format.
XxaoYyao:XxnlYyal;, linear interpolation (movement command) with GOI, G90 and
O.

yao ) and (xat, yat) are input coordinates of absolute value.

It is assumed that the priority level pi of the coordinate transformation command is such that the larger the numerical value, the higher the priority level.

For example, G52xXiYyiP5; ...Priority 5G22
AθiP4; ・Song・Priority 4G90 G92
If you program XxaoYyao :GOI XxatY7a1;, one movement information (
GOI Xxat Yyat: ) is the input coordinate system (X
a, Ya) is rotated by θi of G22, and its coordinate system becomes the (Xc, Yc) coordinate system. After that, G52 is translated by (xt, yDK), and its coordinate system becomes the (Xe, Ye) coordinate system. Conversely, G52 Xxi Yyi P5;
...Priority 5G22 AθiP6; ・Song・
Priority 6G90 G92 XxaoY7ao”.

If you program GOI Xxa+ Yyat;
at ; ) is first translated in parallel by (X1#y1)K of G52, and then rotated by θi(c in G22).

The scaling conversion is G51 Xxs Y)'a Kk ppt ;G90
G92 XxaoYyao ; GOI Xxat Yy
If you program as ; as shown in Figure 8, the movement information (G
) is the coordinate value (Xgl
+7g+).

Note that G92 is a coordinate system setting command, and the coordinates are transformed in the same way as the GOI.

Next, the operation will be explained. First, the program analyzer 10 shown in FIG. 4 analyzes the program from the input section 52, and moves data (for example, QOIXxatYyat;
), the voltage is applied to the coordinate converter 30, and the coordinate conversion data (for example, G52..., G22..., G51...
), it is applied to the data storage unit 12.

Next, the data storage 12 will be explained using the flowchart of FIG. Coordinate transformation data (parallel movement information, one rotation movement information, scaling information) applied from the program analyzer 10 is first converted to each transformation type t, and each transformation information (for example, (xi tyi ) at the time of parallel movement transformation, etc.) ) is extracted and becomes converted data d. Also, priority p
Also taken out.

In the next step, the priority p is stored in the coordinate transformation register 14.
The type t and conversion data d are stored using as an index. Therefore, if the coordinate conversion register 14 is set to C, the following processing will be performed.

(t, d)→C(P) Coordinate conversion register 14 is a table, conversion type t
It is capable of storing a plurality of transformation data d, and is set in the data storage 12, and the data is applied to the coordinate transformer 30.

Next, the operation of the conversion controller 34 of the coordinate converter 30 shown in FIG. 4 will be explained using the flowchart shown in FIG. First, the movement data applied from the program analyzer 10 (for example, GOI do.

(GOI Xxat Yyat: ) −(x, V
) Also, the index counter i for taking out data from the coordinate conversion register 14 is initialized.

0→i The next step is determined by comparing the maximum storage number Cmax of the coordinate conversion register 4 and the index counter i.
If the index counter i is greater than the maximum storage number Cmax, it is considered that the process has ended, and if the index counter i is also less than the maximum storage number Cmax, each coordinate transformation is performed.

In the next step, the conversion type t and conversion data d are extracted from the coordinate conversion register 14 using the index counter i.

C(i) → (t , a) The next judgment is to analyze the transformation type t, and if it is no processing, skip the coordinate transformation, and if it is a translation transformation type, start the translation transformer 36. , if it is a rotational movement conversion type, start the rotational movement converter 40 and
If it is a ring conversion type, the scaling converter 44 is activated.

Note that the translation converter 36 performs the following calculation.

(xi=yi is conversion data d) Further, the rotational movement converter 40 performs the following calculation.

(·θl is conversion data d) The scaling converter 44 performs the following calculation.

(XB, y8mk is the conversion di.) Next, in the next step, the index counter i
This is to update.

i+1→i Below, the completion determination process of the coordinate conversion register 14 is performed,
It returns each coordinate transformation process.

When the coordinate transformation is completed (when the index counter i becomes larger than the maximum memory number Cmax), the coordinate transformation is completed (
x=y) coordinates are applied to the next interpolation process.

[Problem that the invention seeks to solve]

Since the coordinate conversion process of conventional NC devices is executed as described above, there were problems such as the inability to program when the values to be converted are unknown or changed when creating a Kani program. .

This invention was made in order to solve the above-mentioned problems, and when the values to be converted in coordinates are unknown or changed when creating a Kaniprogram, the IOI.

Program it by replacing it with a correction symbol like IO2... and set the correction amount in the NC device during machining setup.Even if the value to be converted into coordinates changes, the value of the correction amount can be changed without changing the addition program. The purpose is to obtain an NC device that can perform machining using only a single machine.

[Means for solving problems]

The NC device according to the present invention is configured such that a correction number can also be stored in a conventional coordinate conversion register, a correction register is provided for storing a correction amount, and each coordinate conversion device is provided with a function to perform correction.

[For production]

In this invention, each coordinate transformation amount of the movement data is made to be a coordinate transformation value obtained by adding a correction amount based on an external instruction to a value specified in the Canadian program.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In the figure, parts that are the same as those in Figure 4 are designated by the same reference numerals.
In the figure, 16 is a coordinate transformation register that stores a plurality of coordinate transformation data and correction numbers, 18 is a key manual for setting the correction amount, 20 is a correction register that stores the correction amount corresponding to the correction number, and 32 coordinate conversion of movement data This is a coordinate converter that performs coordinate conversion processing according to the contents of the register 16 and the contents of the correction register 20.

Further, the coordinate converter 32 is composed of the following. That is, 34 is a conversion controller that controls each coordinate converter 38, 42, and 46 from the movement data and coordinate conversion register 16, 38 is a parallel movement converter that moves the movement data in parallel including the correction amount, and 42 is movement data. 46 is a scaling converter that scales the movement data including the correction amount.

Next, before explaining each operation, a coordinate transformation program of the present invention will be explained.

Translation transformation is in EIA format: G52 Xxi Yyi Ixh Jyh Ppi;
, G52 indicates the translation type, (xil)'1) indicates the translation information, (xh, yh) indicates the correction number information, and pi indicates the conversion priority.

Rotational movement conversion is EJA 7 ohmat G22 Aθi
BθhPpi;, G22 is the rotational movement type, pi is the rotational movement information,
θh indicates correction number information, and pi indicates conversion priority.

Scaling conversion is EIA, G51 in y format
Xxs Yys Ixt Jyt Kk Lkh pp
t; and G51 is the scaling conversion type, (xs
, ys) and the scaling information by k, (xt , yt)
and oil indicate correction number information, and pi indicates conversion priority.

If the movement command is in EIA format, G90 GOI Xxao Y3'ao ;Xxal
Yyal ;, linear interpolation (movement command) with GOI, G90 and (xa
o.

yao ) and (xil rya+ ) are input coordinates of absolute values.

Correction number (xh tyb) +θh, (xt, yt
, kh) are replaced with symbols in case the values to be subjected to coordinate transformation are unknown or to be changed, and are used to set the correction amount in the NC device at the time of machining setup.

It is assumed that the priority level pi of the coordinate transformation command is such that the larger the numerical value, the higher the priority level.

For example, G52 Xxi Yyi Ixh Jyh P5;
- Correction number (xh, yh), priority 5G22 Aθ
1B0hP4; ... Correction number θh, priority 4G90 G92 XxaoYyao +.

GOI Xxax Yya+: If you program
) is the input coordinate system (Xa
, Ya) is rotated by pi of G22, its coordinate system becomes the (Xb, Yb) coordinate system, and further rotational movement is performed depending on the content (correction amount) other than the correction number. The coordinate system becomes the (Xc, Yc) coordinate system. After that, parallel movement is performed by (xt, yi) of G52, and the coordinate system becomes (Xd, Yd) coordinate system.Furthermore, parallel movement is performed according to the contents (correction amount) of correction number (xh,, yh). , and its coordinate system is (
Xe, Ye) becomes the coordinate system 0 Conversely, G52 Xxi Yyi Ixh J)'h P5;
-=Correction number (xh, yh), & Priority 5G22Aθ1
BI9hP6; ...... Correction number θ
h, priority 6G90 G92XxaaYyaa; GOI XxaIYyat;
a+: ) is first translated by (xi, yi) K of G52, and then the correction number (xh, yh)
Parallel movement is performed according to the contents (correction amount). Thereafter, rotational movement is performed according to G22 pi, and further rotational movement is performed according to correction number θh.

The scaling conversion is G51 Xxs Yys Ixt J3't Kk L
If you program kh Ppi;G90G92XxaoYyao: GOI Xxat Yyat;, the movement information (Go I
) is the scaling center (xs, ys)
Correction number (xt.

The value is the sum of the contents (correction amount) of yt), and the magnification is k
Add the contents of correction number kh (correction amount) to
Perform ring transformation.

Note that G92 is a coordinate system setting command, and the coordinates are transformed in the same way as the GOI.

Next, the operation will be explained. The program analyzer 10 of FIG. 1 analyzes the Canadian program from the input section 52 and extracts movement data (eg, Go I Xxat Yyat;
), it is applied to the coordinate converter 32 and the coordinate conversion data (fc, for example, G52..., G22..., G5
1...), it is applied to the data storage 12.

Next, the data storage 12 will be explained using the flowchart of FIG. 6 of the conventional device. Coordinate transformation data applied from the program analyzer 10 (parallel movement information, one rotation movement information,
The scaling information) is first converted to each transformation type t, and each transformation information (for example, (xi
, yi ), etc.) are extracted and become converted data d,
The correction number is also extracted, and the priority p is also extracted. In the next step, the conversion type t, conversion data d, and correction number are stored in the coordinate conversion register 16 using the priority p as an index).
If the coordinate conversion register 16 is C, the following processing will be performed.

(x, ds h )→C(p) The coordinate transformation register 16 is a table, and the transformation type t
It can store multiple numbers of conversion data d and correction numbers.
The data is set in the data storage 12 and applied to the coordinate converter 32.

The manual key 18 is operated by the operator during machining setup, and is used to set a correction amount corresponding to the correction number of coordinate transformation and store it in the correction register 20. The correction register 20 is a table that can store a plurality of correction amounts corresponding to correction numbers, and applies the correction amounts to the coordinate converter 32.

Next, the operation of the conversion controller 34 of the coordinate converter 32 shown in FIG. 1 will be explained using the flowchart shown in FIG. 5 of the conventional device. First, the movement data applied from the program analyzer 10 (for example, Go I

(GOlXmtYyat; ) −+ (x, y)
Also, an index counter l for extracting data from the coordinate conversion register 16 is initialized.

0 → i The next step is determined by comparing the maximum storage number Crmx of the coordinate conversion register 16 and the index counter i.
If the index counter i is larger than the maximum storage number Cmax, the process is considered to have ended, and if the index counter i is less than or equal to the maximum storage number Cmax, each coordinate transformation is performed.

In the next step, the transformation type t is converted from the coordinate transformation register 16 to the index counter i.

The conversion data d and the correction number are extracted.

C(i) → (t , d , h) The next judgment is to analyze the transformation type t, and if there is no processing, skip the coordinate transformation, and if it is a translation transformation type, start the translation transformer 38. If it is a rotational movement conversion type, the rotational movement converter 42 is started, and if it is a scaling conversion type, the Sfurling converter 46 is started.

In addition to the functions of the conventional device, each coordinate converter 38, 42, and 46 receives a correction signal from the contents of the correction register R20 (correction amount).
It has the ability to bring out feelings.

R(h)→1 Furthermore, this correction amount 8 is added to each of the transformed data to perform a predetermined coordinate transformation.

That is, the parallel movement converter 38 performs the following calculation (xi, yi are conversion data d*xh, v'lh is the correction number h), and the rotational movement converter 42 performs the following calculation (
θi is conversion data d, and θh is correction number 11) The scaling converter 46 performs the following calculation.

(xspys has conversion data d * xt + yt
+kh is the correction number h) The next step is to update the index counter i.

After i+1-+i, the completion determination process of the coordinate transformation register 16 is performed, and each coordinate transformation process is repeated.

When the coordinate transformation is completed (when the index counter i reaches the maximum memory number Cmax), the coordinate transformation is completed (
x = y) coordinates are applied to the next interpolation process.

As described above, in the present invention, the correction register 20 extracts the correction number specified in the Kanji program, adds it to the coordinate transformation data, and performs a predetermined coordinate transformation.

In the above embodiment, the coordinate transformation is parallel movement, one rotation movement,
Although we have shown scaling conversion, mirror image,
Switching in units of inches/mm may also be used to achieve the same effect as in the above embodiment.

〔Effect of the invention〕

As described above, according to the present invention, by specifying the correction number in the Kani program, it is possible to output the correction amount from the correction register, so even if each coordinate transformation data changes, the correction amount can be By only changing the values, there is no need to recreate the Kanib p-gram, and a flexible Kanib p-gram can be obtained.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a calculation unit showing an embodiment of the present invention;
Figure 2 is an explanatory diagram of coordinate transformation of the same embodiment, Figures 3 and 4.
The figure is a block diagram showing the configuration of a conventional NC device, and FIGS. 5 and 6 are flowcharts for explaining the operation of the conventional device.
FIGS. 7 and 8 are explanatory diagrams of coordinate transformation of the conventional device. In the figure, 10 is a program analyzer, 12 is a data storage device, 16 is a coordinate conversion register, 18 is a key manual, 20
32 is a correction register, 32 is a coordinate converter≠1000/1.34 is a conversion controller, 38 is a translation converter, 42 is a rotational movement converter, and 46 is a scaling converter.

Claims (1)

[Claims] an input unit that reads machining information of the machine tool; a calculation unit that calculates a machining trajectory based on the machining information and external instructions; In a numerical control device having a control section that outputs a control signal and an operation section that issues the external instruction, the calculation section generates a parallel movement, rotational movement, or scaling instruction that is a coordinate transformation command of machining information, and a coordinate transformation command that is a coordinate transformation command of machining information. a coordinate transformation register that can store a plurality of correction numbers; a data storage that extracts a coordinate transformation command from the coordinate transformation data and stores the transformation data and correction numbers in the coordinate transformation register; A correction register that stores a correction amount in a corresponding manner, and a coordinate converter that performs coordinate conversion of movement data based on the contents of the coordinate conversion register and the contents of the correction register, and the movement data of the numerical control device is translated in parallel. A numerical control device characterized in that coordinate transformation is performed by adding a correction amount based on an external instruction to rotational movement and scaling instructions.