JPS60191742A - Electric discharge machining apparatus - Google Patents

Abstract

PURPOSE:To inspect the contents of an NC program simply, rapidly and correctly through visual inspection by allowing the locus of a tool on to be displayed a CRT display apparatus, in an electric discharge machining apparatus in standstill state. CONSTITUTION:In an NC program inspecting apparatus 13 in an electrical- discharge machining apparatus, each scale of axes and the coordinate value in an indication range are indicated, with X-axis and Y-axis, as the preparation for inspection onto a CRT display apparatus 34, and also a tool mark is diplayed at the center of a picture-scene. When an NC program analyzer 14 is started after the preparation is completed, the apparatus 14 prepares the analytical data of the NC program in one block portion, and after the data is set into an analytical data table 24, an analysis completion signal is input into the apparatus 13. Therefore, the conversion to the data for the apparatus 34 is performed by the apparatus 13. Thus, the contents of the NC program can be inspected rapidly and correctly through visual inspection.

Description

[Detailed Description of the Invention] [Summary of the Invention] The present invention is based on the content of a numerical control program (hereinafter referred to as an NC program) created for controlling an electric discharge machining device, i'f, that is, the l4j ( j + orbit 11'
By outputting the electrode coordinate values corresponding to the movement trajectory or the electrical conditions set in the NC program to the C)t1' display device, it is visually checked whether the created NC program performs the specified processing. This invention relates to electrical discharge machining equipment that can be easily and accurately inspected by the following methods.

Block 1v, 1 shows the configuration of this type of electrical discharge machining equipment. ] and facing the main electrode of the electrical discharge knee y device (J↓, which can be attached and detached at will)t
'i'+1. The liquid is raised at a predetermined speed by iE reverse rotation of the hole screw (4) which is rotationally driven by the zarpo motor (5). (3) is a processing tank that accommodates the workpiece (2) with 1-11 constant l- and Il "l man-hours; And n'1 flow server for Y-1
Homota (7) I/CJ: TS”CX [1l11
Direction Y 'FJ11 freely in seven directions ifg IIIJ
I L, I 4 I. (8] is a manual switch, (1t) is the 71st column of NC tape (9), 3 iIi, if, mi'II/ru data reader, (
11) reads the image from this tape reader rlf'll. When I multiply myself by 1, i is 1, ・pH
A storage device that outputs data, (1+I is a server l1111+ill fr!le
A, (1') &:l, servo motor drive circuit, 0→ is DC □・19 碌, (191t] l-pulse) reciprocal type Ima de l'-0NJ[01・""', 11ii11
A, by using the switching transistor power, apply the voltage of the DC source 0→ to the processing electrode (
1) and the workpiece (2) during free machining Hj,
7S wiping pile "'": ((11. installed for applying voltage through the cypress).

, Furthermore, this variable resistor e4 and the above i'1 switching month 1 transistor (19, pulse generation/1 = , '(:
:: (E) and 11 (i4 pieces, processing type 8 circuits Q
]) ii? 71j'i. (c) is the above main shaft (to), ball screw (4), machining 4t4
(3), Itun servo motor (CI) for X IIn+,
Y rir+'l'n for 1lill, surf motor (
7) and the Z-axis DC servo motor (5), etc., and is designed not to change its position relative to the floor surface on which it is in contact. (to) this bed at
K [ﾆ1 city/this table, (c) is the above-mentioned processing bracket jν (j17 is the pen holder attached, (g) is N
The C program will be explained later using the NC program analysis system (portrait).
The analysis results are as follows: iL servo motor (5) (tl) (7) is P! <I'm not going to get hurt '+lCL,, and', jf fJ
(It is a machine lock switch to prevent the current from flowing into the circuit (c).

0υ is the start point of the 7th cut of electrical discharge machining according to the NC program set by the theory 111j circuit α9!
:' ``Start switch that sends j, (14+ is this start switch (+ (+ + 1) + - [Shinshu 1 of the logic 1 ri circuit (1υl]・U) that received the start signal.・From this, this theory Established by Juri circuit Q!9>)'sle:,
N (NC program that analyzes the r program 1γ
Analysis "41 buttocks, (2v is - 2nd N C program, analysis device (14: Yotsu' (created) 1.II+# Analysis Cheagle to save analysis data, this '+Y'! table , ``, pressurized J month data meeting, processing data creation f?Z
, % [7 (→ I will create it 5 j5 nasa 7
h, and this processing data f'F', 'J5C J
The data created by f,, ti:j is structured into a processed data table (stored elsewhere).

r；L! :',7,',H(+Jl-Dingsi11 cold is '21, configured as i.5su,iN C
How to check the program (C is explained as follows., -t, of the N C program;Q).
[Processing 11, P and so on] Te/°! First, let's do the NC program! ! Father's small: :hn engineering'' is set to +1, but if we remove this (-t), then NC program i < NC data f.g) i, I) Input - There is a method of setting the NC tape program by omitting it in the tape reader (1@), or a method of setting the NC program stored in the storage device 10υ by specifying the chromogram relative using the input switch (8). After setting the NC program in this way, when the start key (3I) is pressed, the logic circuit that inputs that signal starts up the NC program analysis device H and the NC program is analyzed, resulting in the C program. The data is set in the analysis data table (c) by the 1γ1 analyzer (4).In this way, the analysis data table 9-j
) is set to 0 in the processing data creation device fi'j
(4 is converted into processing data 7, and this converted data is set in the processing data table a).

The NC program inspection method described above is
The following is a detailed explanation of the data for linear movement or circular movement created when inspecting a C program.

First, the NC program for arc movement is NC Progera 7-
'Mt new 4 #slang^A+wy rii 荀nwa; design key J, ζ is also set to -hou#-vertical pull←11. In this case, I! of the movement start point P1 for circular movement based on the circular movement NC program! I6+i;i (x s, y s )
, arc path 'Erb Ic, Jnil movement P point 1N"x
J's I! m'q K? (X e + Y e ), the center point of the arc P 2'') W ea (xo + yn) and the circular rotation direction "clockwise" are set in the analysis cheetah table (c) as data, then from this data Sofi￥(c) is the arc received in the form of data, 1? The circular arc AJ of motion is between the 11th point and the 1st point〃1)
Divide into j calyxes and make the arc smaller to create an arc with multiple glues. Then, one arc movement data is created for this one small arc. If you trace it to a small arc A B
Regarding K, the coordinates (al) of the starting point A when moving through this small arc AH.

a2), the 114th mark of the end point 13 of the transfer iQi+ (b+ lb
2), it is possible to create data for the middle L point (ol, a□) of the small arc AB, and the rotation direction "clockwise". Furthermore, for the small circle 1jllllXIJ, the coordinates of the starting point, ending point, and center point, and the data of the circular arc direction are created. In addition, for straight line movement (and similar to the above circular movement, the starting point and end point should be set as j・1 "1 analysis data") - minutes on the processing data creation device side (e). Create machining data for multiple small line segments (i
・1 has been completed.

Based on a large number of machining data created in this way, the tool is moved % J) L, and its moving speed is υ at the same time.
[1 editor table @Q IIC set command speed 1='. (.7,7 minutes).

Eccentric machining device i that operates according to the point 6'1 described below.
If the operator inspects the NC program by looking at the operation of the i, or if there is an error in the format of the NC program or the size of data set by the NC program,・υ
After that, an error (K error) will be displayed on the CItT display. In addition, the operator inspects the details of the NC program by looking at the discharge application and setting. During this inspection, press the machine lock switch (G). If you leave, the famous Zerbo Nana-ta (5) CG)
(7) Do not create o and 'power supply circuit 0];, create NC program r1 program f+'F analysis j;'t (14 and machining data creation device f'/, (/;, only j) 11) to check program format errors, errors related to the size of data set by the NC program, etc. on the CRT display terminal) i'
; 3 shows and 5 has been done. Furthermore, when actually operating and inspecting the bTi electrical processing device Ij', a recording paper is set on the table rim fixed to the bed (4), and a pen fixed to the Attach the ben to the holder] 6. Then, you can record the Q work of I-J on the horizontal plane X-Yjt/Then:f: , it is also possible to test using this.

As mentioned above, with conventional electrical discharge machining equipment, when checking the NC program, the program is inspected without actually operating the electrical discharge machining equipment using the NCC Profurano, which results in unnecessary work as well as unnecessary work. Not only does it take a lot of time, but in the case of a bamboo circle 41 with 4.8 motions, it is necessary to divide the arc into many points and determine the appearance of the many divided points before issuing one arc transfer b command. Since it is made to change to a set of movements up to a multi-axis value, it requires a considerable amount of work time and reduces the ability to test the program.
If it is small, there is a drawback that the operating rate of the processing equipment is significantly reduced. Furthermore, when inspecting without operating the processing equipment, you can set the broken workpiece (2) in the equipment. It also causes a decrease in the operation rate of the eccentric machining equipment.Furthermore, when inspecting the NC program by pressing the machine lock switch), the CR1' display nail indicating the tool operation is displayed. Due to changes in coordinate values; θt can only be detected, and if there is a 1-gram format error or if the data exceeds the range set during the NC program, it will be displayed as an error on the CR'I' display. It is extremely difficult to discover errors other than errors in specifying the direction of movement and setting errors in the direction of movement.

[Summary of the Invention] The present invention has been made with attention to this point, and by displaying the tool trajectory on the CI image display device while the electric discharge machining device is kept stationary, it is possible to Easy and quick way to visually check the contents of the program 1).! +(CK
The present invention aims to provide an electrical discharge machining device that can be inspected.

[’J:’mi example of invention]

I';! Figures 13 to r; Jy and Figure 6 all show an embodiment of the present invention, or the same reference numerals as the conventional one described above (Figure 1) are the same. The part i is also 1llIl/i'4.

", 31st item 1, electrical discharge machining according to the present invention 4
In the flock diagram of arm 10, 00 is NC tape (9
) tape reader that reads the program, (8) is N
An input switch used for specifying a C program, inputting data, or configuring each device. circuit, ku+, q
C displays the data set by the operator or the specified program, or displays the output from each device W.
I? T display/b': 'tt', f, (11/ is NC
A memory device that stores the program and calls it according to
N C program inspection device that inspects C programs, 0
4 is this NC program inspection device (a PC program inspection device that is activated by tl and analyzes the set NC program, 1) is this NC program inspection device.
Analysis data is set by J1 device α・p>W
The JJi data table, 0) is based on the data set in this data table (of course), and the data converted by ts for the CR71' display device (c) is set. display data table,
Reference numeral 07 designates a test start switch for inputting a signal to the logic circuit (occasionally) for initiating the NC program test device (1') and 11σj when performing the N0 program test.

Is the processing equipment 6 of this invention as well as the above-mentioned? Therefore, before inspecting the NC program, the inspector must first visit the NC program he or she wishes to inspect.
3. Set this to O (1 is exactly the same as how to set the NC program when performing conventional electrical discharge machining. It can be set by various means such as specifying an NC program of 100 qυ, or setting the NC program by inputting the input switch on the CI (i' display device). After setting, press the inspection start switch <+2 and the NC program will be automatically inspected.

That is, as mentioned above, when the test start switch (K) is pressed, the NC program test device (1:y
FJ, as an Iv-preparation for inspection, as shown in FIG.
On J, X rAi+ (402) and YI□ (401
), the scale of the axis (403) and the ordinal value of the display area (404) are displayed, and the tool mark (405) is also displayed in the center of the screen.
-L I' mark 11, electrical conditions, and some data such as the name of the program outside the test A -1=" (4(
16) is also displayed in the corner of the screen. Once the preparations have been completed in this way, when the NC program analyzer o is started, this NC program analyzer α◆ creates an analysis tape of the NC program for one block and analyzes the IQV.
'lJi data table 00 data Seriton, Taado, IQ! Input the (FJ number at the end of April into the Nc program inspection device. Set data in data table C (3) and start CRT display (J, -〇〇・t!j1).

This data change (・Sarasakuka was mentioned above, and like the conventional one, it was necessary to calculate the number of dogs and create a large number of data. Inside CR'
l" display value??'f (rearranged for 1υ and 1σ) The simple task of creating data can be done quickly (51 and 14
Completed in 11'.

The operation described above will be explained in detail with reference to FIG. In order to display the tool movement + 1lill by the NC program of circle 9 + 1λ movement on the CRT display device, C11, T gf shows "r:';
Placement ((41 K N C7'r Koku7 MuQ-,"d
ig;114 position 0:(Display data table (3・!
・V5'tbesa° Tape is circular arc Q''J1. trace (5
01), the beginning of the arc /+”(piζi・) this value (
X+1 + yH) + End point coordinates of the arc (x+□l
Y+2), center coordinate value of (XoI, Yo+)
and the circular arc rotation direction is "clockwise J (502), and the arc locus (503) noi!:4 is the starting point coordinate value of the circular arc (X12.YI2), the χχ point coordinate value of the circular arc (Xo
s, YO3), Yen (center coordinates I1t1(Xn2.
Yl12 ) and fornix 1 [1 rotation direction [left eye J
(504).

The data created by the NC program analysis equipment in this way is converted into coordinate values for the CIT T display device (goods).
'(The work of converting only one data is completed in a very short time, and CIt 1'
Display display (→ displays the arc on the screen almost at the same time as this data is set.

Similarly, in the case of i[gland, 1 of the starting point and ending point
I'1fC program inspection device O:9 is the starting point for the scratch mark value,
The coordinate value of the end point is displayed on the CIt 'l' display device 0. Change the data to useful coordinate values 1<Q t, display data table 0[
C Hi” display device 04 where this is set and this is input.
1 displays IKi fitting on the screen, but this work is also completed in a very short time 1. Also, if you activate the CR1' display device 0/heart, there is no need to wait for No. 43 to complete the movement. , V? , the NC program analysis device θ can be started immediately to analyze the next block of the NC program.

Furthermore, since the movement control command written in the NC program and the program specifying the waiting time are not affected, all tool trajectories caused by movement programs with slow movement speeds are displayed instantly. However, as shown in Figure 6, the type of tool movement, whether it is rapid traverse movement, P4 movement due to speed specification, or stopping when contact No. 1 is notified. Distinguish the movements of Kali i, ゛, and display them on the CITT display device (A). If the data specifying the type of line 74 is also set at the same time as the display cheetah table 0→, the C1i' display device 11°f341 can change the line type and display it based on this.

Furthermore, C) t T display device 0 and 0 are simultaneously displayed in the display data table 0:9.
IT: /, i, I silver stripe f1, or the coordinates of the go tool (i
It is possible to display rl data or the NC program block being displayed, and each of the above-mentioned rod operations is repeated until the end of the NC program to display one NC program. 1. The above-mentioned Kazumi/Mi example describes a machine that analyzes and displays each block of the NC program, but the relationship between analysis and display is that It goes without saying that the same effect can be obtained even if it is displayed after analyzing all the items.Also, the trajectory J) In addition, i!+', ';;f, + items and sending. Data related to machining, such as speed, can be displayed at the same time, and the settings of the NC program to be inspected can also be set to bring out a function for the inspection on the screen to be inspected.

[-Effect of the invention- (J) 1: As stated above, according to this invention, conventional inspection] 1
Not only the program format errors discovered by the i method, but also the data range error, etc., were clearly compared to the conventional one and the message from the processing device U that was sent out in the evening. Program (Koyoru 2, 14 moves + 111Jj! Small, trace is CIt'
“Display device 1ifi, υJT, revealed by K line 2”
Therefore, errors in the internal world of the NC program, such as movement amount 4ii, which could not be detected only from the numerical value displayed on the CR1 display device, without operating the discharge application device as in the past. For errors such as fixed error or - (support) movement direction specification error,
, 1r to t, 4 hands - Red knife Conventionally, the processing data
The production equipment (2.1) was activated to convert the NC program into the data required for actual machining, and then the NC program was inspected, which required a considerable amount of inspection-IF work time. According to this invention (f?'), the NC program inspection device is 0; At the same time, the trajectory is displayed on the CltT display device G at 115.1 o'clock, which has the effect of allowing the NC program to be inspected in an extremely short time. Since inspection can be performed, it is possible to set up the workpiece in parallel with the program inspection and perform machining f,% <lif+, which significantly improves the f'ii efficiency of the electrical discharge machining equipment. Furthermore, according to the present invention, since the power unit U is not operated for program inspection, it goes without saying that energy can be saved.

[Brief explanation of drawings]

Figure 1 shows 1. of a conventional electrical discharge machining device. FIG. 2 is a block diagram showing the configuration of the i! Seek P4 +iii in r-line movement and circular φ bar movement, 702) 10~? ? , 6 all show one embodiment of the present invention, FIG. 6 is a block diagram showing the configuration of an electric discharge machining device, and FIGS. 4, 5, and 6 are CI bi-1. Display screen i41 showing the outfit screen? , in the clear diagram, Ali)・(j) is the electrode for addition, (2) is the workpiece,
CC Cheeve (1 () is tape league, υ grain is = a storage device, 03 is NCC nogram / suspicion / investigation device, OI ma NC program analysis device side, (i! j is discussion r6.0 (l is Servo control circuit, 0η is servo motor tail 11dt (G
H path, 01] is the power supply [4jl path, e is the 1vζ analysis data table, C (soup j, J!
9 is C111゛display device, i+? It is. In addition, the same reference numerals in the figure are the same as -l and the monk fat) ㅅJ...2' Hakusu, agent Patent attorney Kimura San Routyo Continued by Kami Seisho (self-proposal) April 10, 1985 'l'l'11'fl!'Jzegidenj,100'1 manpower Patent application No. 59-45627 2
, Name of invention Electric discharge machining device: 3. t+1i Person doing IL, 10 agents 5S=, h11 subject of suspension 6, contents of oil suspension (1) Specification No. 4 I zzj, No. 1? row nol lfrco+
rJ t'rD rt', dynamic U) 1. ::t':'
j is an arc, J, ji, 1 arc movement field t) as an example/''heshi no 1, sea urchin, movement red ``1≦'' and oil stop→
Ru,. (2) Specification 1 (1 page 10: i Li v) l Jl
ll ILt, -c, 1 <l; ``No need to worry,'' said the oil stopper. (3] Ming 1111 YoshitQ] Ok+, 4th (”
j c+) prof'1; 4pj J-, d-(1;,
) "It's working," said the oil stopper. that's all

Claims (1)

[Claims] [1] i that stores a large number of programs necessary for sheet electric machining;
jL'L is the device, this is the device that sets the predetermined Kanigelog gym from the α device. Based on this program analysis device 1 island 1 1 tube 4 data, CIt 1'
The grain content of ゛ (the ill shown by the water device) and ゛
Sword, step and 7 settings, J (show the necessary data for Ctt'r through the data table, + ≧ small 1, 1
- NCC program inspection device i'J manually operated at l1
An electrical discharge machining device characterized by: (2) To <-nib [Cogram 497 Inspection Q is characterized by being connected to an inspection start switch for manually inputting the 1'-(-) to the 1 ethics circuit to start it. Claim +1! Ij The electric discharge machining apparatus according to item 1. (:3) Claim characterized in that the N C program inspection apparatus includes analytical data. 'J'y I Ji
(4) The display data table is data converted by the NC program inspection device for the CR1 display device based on the data set in the 100% analysis data table. Claim 1 or 6 ++? 5 electrical discharge machining equipment.