JPS6289112A - Numerical control device - Google Patents

Abstract

PURPOSE:To designate the priority order of the coordinates transformation with the processing program and to decrease the burden of the NC programing work by providing the information storing device to be able to arrange respective coordinate transformers in parallel and store plural coordinate transformation commands and the information accommodating device to accommodate the coordinate transformation command in accordance with the priority degree. CONSTITUTION:The coordinate transformation information is decoded in an information accommodating device 12, and accommodated by the priority degree designated to an information storing device 14. The information storing device 14 stores plural pieces of the coordinate transformation information and impresses them to a coordinate transformer 10. A discriminator 20 of the coordinate transformer 10 compares a maximum memory number Cmax of the information storing device 14 and an index counter (i), and when the coordinate transformation is completed [when the index counter (i) comes to be larger than the maximum storing number Cmax], the coordinate- transformed coordinates are impressed to the interpolating processing. Consequently, for the shifting information of the processing program, the transformation of respective coordinates is transformed in accordance with the priority degree stored into the information storing device 14.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a numerical control (hereinafter abbreviated as NC) device which aims to reduce the burden of programming work on the device.

[Conventional technology]

A conventional device of this type is shown in FIG. In the figure, 30 is an input medium, for example a paper tape, and machining information is read into an input section 32, and a machining trajectory is calculated by a calculation section 34 based on this machining information. The output of the calculation section 34 is applied to the control section 36. The control section 36 outputs a control signal to the drive section 38, and the drive section 38 controls machining of the machine tool 40.

Further, the calculation unit 34 converts the processing information given by the input medium 30 such as a paper tape into coordinates according to a predetermined procedure, and performs linear interpolation or the like.

FIG. 5 is a block diagram showing the coordinate transformation process of the calculation section 34. The coordinate conversion circuit includes a parallel movement converter 22 and a rotational movement converter 2 that convert movement information into predetermined coordinates.
4, a scaling converter 26, a parallel movement storage 52 for storing each coordinate conversion information, a rotational movement storage 54, a scaling storage 56, etc.

Next, the operation will be explained with reference to FIGS. 5 and 6.

First, parallel movement information of coordinate transformation information (for example, G52
The amount of parallel movement (Xp, yp) of Xxp Yyp:) is stored in the parallel movement storage device 52. Then, the rotational movement amount (θ) of the rotational movement information (for example, G22 Aθ;) is stored in the rotational movement storage 54, and the scaling center (Xc, yc) and the scaling magnification ( k+ is stored in scaling storage 56.

Next, movement information (for example, GOIX) (i Yy+ F
When fi ;) is applied to the scaling converter 26, its input coordinate values (xl, yl) are taken out. First, the scaling converter 26 converts the input coordinate value (Xi+yi)
From the scaling center (Xc+3'c) and scaling magnification (k+) stored in the scaling memory 56, the following equation (1) is calculated, and the new input coordinate value (X i
'+ Y i') is obtained.

Next, the rotational movement converter 24 converts the new input coordinate value (X i
'+3'i') and the amount of rotational movement stored in the rotational movement storage unit 54 (2), the following equation (2) is calculated, and the rotational movement coordinate values (Xr, yr) are determined.

Next, the translation converter 22 converts the rotational movement coordinate value (Xr
.

Coordinate transformation is performed by the above procedure, and the parallel movement coordinate value (xt
, yz) are applied to linear interpolation processing, etc.

[Problem that the invention seeks to solve]

Since the coordinate transformation process of the conventional NC device is performed as described above, it is convenient when performing parallel translation transformation after rotational translation transformation as shown in Figure 6, but conversely, as shown in Figure 7, As shown, it is not possible to perform rotational translation after translational translation, resulting in problems such as a heavy burden on NC programming and the length of the program.

This invention was made in order to solve the above-mentioned problems, and it is possible to reduce the burden of NC programming by specifying the procedure of coordinate transformation processing arbitrarily in a computer program. The purpose is to obtain equipment.

[A precautionary measure to resolve the problem]

The NC device according to the present invention includes a translation converter, a rotational movement converter, and a scaling converter in parallel, and also controls the translational movement storage, rotational movement storage, and scaling storage into an information storage/container. and is stored based on the priority order of the NC program.

[For production]

The coordinate transformer according to the present invention specifies the priority order of coordinate transformation using a Canadian program, and performs the coordinate transformation of movement information in accordance with the specified nine priority orders.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, the same parts as in FIG. 5 are designated by the same reference numerals.

First, 10 is a coordinate converter, and the coordinate converter 10 is composed of the following components. That is, 20 is a discriminator, 2
2 is a translation converter, 24 is a rotational movement converter, and 26 is a scaling converter. The converters 22 to 26 are connected in parallel and convert movement information into predetermined coordinates.

Further, 12 is an information storage device, and 14 is an information storage device, in which coordinate transformation information is decoded by the information storage device 12 and stored in the information storage device 14 with a designated priority. The information storage device 14 stores a plurality of pieces of coordinate transformation information and applies it to the coordinate transformation device 10.

Next, before explaining each operation, we will explain the addition program of coordinate transformation information □ Parallel translation transformation 22 is G52X in EIA format.
xp Yyp Pp ; and G52 represents the parallel movement type, (xp, yp
) indicates parallel movement information, and (p) indicates conversion priority.

Also, the rotational movement conversion 24 is in EIA format.
22AθPp; where G22 indicates the rotational movement type, (θ) the rotational movement information, and (pi the conversion priority.

Nuke ring conversion 26 is ErA7 automatic and G51
Xx(:YycKkPp;, G51 indicates the scaling conversion type, (xc, VC) and (k+ya scaling information), and fpl indicates the conversion priority.

Priority (The larger the value of pi, the higher the priority. For example, G 52 Xxp Yyp P5 t...
・・・Priority 5G22AθP4; ・・・・・・・・・
...Priority 4G OI XXIYyl Ffl
; If you program 2, you will get the movement information (Go I Xx IYy
I Ffl ;) is first rotated by θ of G22, and then translated by CXp, Yp) of G52.

On the other hand, o5□xx, Y, pP5; ...song/priority 5G2
2AθP6; ・・・・・・・・・・・・・・・・・・
If you program priority 6G 01 XXI Yyl Ff 1 ;, the movement information (GOI XXI Yyl F
fl ;) is first translated in parallel by (xp, yp) K of G52, and then rotated by ( in G22).

Of course, the same conversion can be performed multiple times,
For example, G 52 Xx, I Yypl P 5 ; ・−・−
...Priority 5G22AθP6; ...
...Priority 6G52XX1)2Y, p2P7
;...1 priority 7Q OI XXI y, F(1
; When programmed, first a parallel movement by (Yp2. yp2) is performed. Next, a rotational movement by (θ) is performed, and further a parallel movement is performed by (xp1*ypt).

Next, the operation shown in FIG. 1 will be explained using the flowchart shown in FIG. First, when coordinate transformation information is input, the information storage 12 determines parallel movement information, rotational movement information, or scaling information, and if it is not coordinate transformation information, no processing is performed. When the coordinate transformation information is available, the process moves to the next step, where the parallel translation information, rotational translation information, and scaling information are converted to their respective transformation types t, and each transformation information, such as (xp, Yp) at the time of parallel translation transformation, is extracted. This becomes information d, and friend priority p is also extracted. In the next step, type 1 information d is stored in the information storage device 14 using the priority p as an index.
If the information storage device 14t-C is used, the following processing will be performed.

(t, d)→C(p) The information storage 14 is a table, and can store the conversion type t and its information dt-multiple items, and the information storage 12 stores υ
This information is set and applied to the coordinate converter 10.

Next, the operation of the discriminator 20 of the coordinate converter 10 of FIG. 1 will be explained using the flowchart of FIG. 2.

First, movement information (for example, co I XX I YY
) is determined, and if it is not movement information, no processing is performed.

When it is the movement information, move to the next step, take out the movement coordinate values (x, y), and set them as initial values in the register (
x, y). Also, an index counter i for extracting data from the information storage device 14 is initialized.

0→i The next step is the maximum memory number C of the information storage device 14.
Compare max and index counter i, and if index counter i is larger than the maximum memory number Cmax,
It is assumed that the index counter i has reached the maximum storage number C.
If it is less than max, each coordinate transformation is performed.

In the next step, the index counter i, conversion type t, and conversion information d are retrieved from the information storage device 14.

C(i) → t, d 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 parallel translation type, start the parallel translation converter 22 and perform rotational translation. If it is a conversion type, the rotational movement converter 24 is activated, and if it is a scaling conversion type, the scaling converter 26t is activated.

Note that the translation converter 221-t performs the following calculation.

(Xp, yp are conversion information d) Further, the rotational movement converter 24 performs the following calculation. (θ is conversion information d) Furthermore, the scaling converter 26 performs the following operations.

(Xc, Yc, k is conversion information d) Next, in the next step, index counter i
Update.

1+1→1 Thereafter, the end determination process of the information storage unit 14 is performed and each coordinate transformation process is repeated. When the coordinate transformation is completed (when the index counter i becomes larger than the maximum memory number cmax), the (x, y) coordinates that have been transformed are applied to the interpolation process.

As described above, according to the present invention, conversion information is stored in the information storage device 14 with the specified priority of the coordinate transformation information of the Cannibal program, and movement information of the Cannibal program is stored in the information storage device 14. Each coordinate transformation will be performed according to the priority.

However, in the above example, the coordinate transformation is parallel movement, rotational movement,
A friend shows about scaling transformations, mirror images,
Switching may be performed in inch/millimeter units, and the same effect as in the above embodiment can be achieved.

〔Effect of the invention〕

As described above, according to the present invention, there is provided an information storage device in which each coordinate transformer is arranged in parallel and can store a plurality of coordinate transformation commands, and an information storage device that stores coordinate transformation commands according to priority. , the priority order of coordinate transformation can be specified using the niprogram, which has the effect of reducing the load on NC programming work.

[Brief explanation of drawings]

FIG. 1 is a block configuration diagram of an arithmetic unit showing an embodiment of the present invention, FIGS. 2 and 3 are flowcharts explaining the operation of FIG. 1, and FIGS. 4 and 5 are flow charts of a conventional A block diagram showing the configuration of the NC device, and FIGS. 6 and 7 are coordinate transformation explanatory diagrams. 10 is a coordinate converter, 12 is an information storage device, 14 is an information storage device, 20 is a discriminator, 22 is a parallel translation transformation 24 is a rotation translation transformation, and 26 is a scaling transformation. Patent Applicant: Mitsubishi Electric Co., Ltd. Agent Masuji 1) Hiroshi Sawa; (2 others) xl. Figure 5 JI7 Illustration-]・、lli Ichi Masa :':' (Spontaneous) 1 Chutoto's l Gojk Mochi; (iC! 1986-2287
No. 56? , f Komei's name (Ko I, Numerical control device 33 Shinshi who corrects, 'ft!:'s leap system Wait 9 works 1 out of 1. (i0
Person 11 Location Marunouchi 2-chome, Chiyom-ku, Tokyo 12-3 and 1 (!j, (601) Mitsubishi Electric Corporation Representative Mamoru Shiki Late - 1st Director Masato 11p number 105fi]+'
! i Shishinsen 1-111 Sake 10-J-5, Minato-ku, Tokyo, Subject of amendment (1) Detailed description of the invention in the specification (2) Drawing 6, Contents of amendment (1) Description On page 7, line 15, “scaling information,
" is corrected to "scaling factor." (2) r (xpz, 7p2) on page 8, line 18 of the specification
J is corrected to r (xpt, ypt) J. (3) r(xpt, ypt) on page 8, line 20 of the specification
J is corrected to r (xpt, ypz) J. (4) Correct the attached circular Figure 3. 7. One or more documents containing the revised Figure 3 of the attached documents

Claims (1)

[Claims] An input section that reads an input medium containing processing information of the machine tool, a calculation section that calculates a machining trajectory based on the processing information, and a control section that outputs a control signal based on the output information of the calculation section. In the numerical control device, the calculation unit includes an information storage device that can store a plurality of parallel movement, rotational movement, and scaling commands that are coordinate transformation commands of machining information, and an information storage device that extracts coordinate transformation commands from the machining information and processes them with a specified priority. an information storage device that stores a coordinate conversion command in the information storage device based on the information storage device, and a coordinate converter that performs coordinate conversion of processing information based on the stored contents of the information storage device, A numerical control device characterized by performing coordinate transformation of movement, rotation, and scaling with specified priority.