TWI335848B - Wire discharge processing machine - Google Patents

Description

1335848 IX. Description of the Invention: [Technical Field] The present invention relates to a wire electric discharge machine which generates a discharge between a wire-weight wire electrode and a workpiece 16 to process a workpiece into a predetermined shape. [Prior Art] In an electric discharge machine, a high-frequency pulse electric motor is applied to a wire electrode, and a discharge generated between the wire electrode and the workpiece is removed to remove the object to be added. Predetermined shape. The wire electrode is used to guide the wire guide, and one side is guided in a predetermined direction, for example, a vertical direction, and a machining liquid is supplied around the wire electrode. The above-described discharge is generated by the numerical control so as to move, for example, the movement of the table to be moved in a predetermined direction. This can precisely process the workpiece. 9 When the wire is subjected to wire electric discharge machining to make the workpiece precise and stable, and the wire electrode and the workpiece are short-circuited, it will not be electrically, and the machining will stop. In addition, the online residual processing genus may cause discharge concentration (hereinafter referred to as "concentrated discharge electrode: the result of excessive localization of the wide discharge energy, the line will often be generated::: the wire electrode is redirected again by the wire guide 2:: There is a proposal for various techniques for preventing wire breakage. For example, Patent Document 1 discloses that there are species above and below the workpiece 318719 5 1335848 = above for supplying pulse voltage from the processing power source to the wire electrode. The second pass is: and an energization switch is arranged between each of the energizing terminals and the processing power source, and a pulse voltage is continuously applied to the mother machining power source, that is, the Busch 1+丄& The switch is used as the switching control M. In the electric processing device, the discharge portion of the wire electrode and the door of the object to be reinforced is periodically moved up and down, so even if the hair of the large electric wire electrode is passed, I go to + say; In addition, the cymbal is also dispersed between the wire electrode and the workpiece, so that the wire electrode is prevented from being broken. The patent document 2 discloses that there is a side-side design on the workpiece. For supplying the processing pulse to the bank /, ]1, the energizing element of the main line electrode, - the upper side electron and the workpiece, the object, and the lower side energizing element and the workpiece, respectively It is equipped with a machining 罟^ - + ^ with a pulse power supply to cut the electric discharge machining 裴, in the k-hunting, the pulse current flows through the line thunder pole from the upper side, respectively, to prevent the concentration of the discharge point, 蛀, In addition, Patent Document 3 discloses that there is a ^ ^ ^ , and the green electrode is provided with two contacts to make the workpiece be processed and processed. The method of the two ends of the processing domain, according to the discharge position between the wire electrode and the force 0 v + object, the processing snow flow is supplied to either of the two contacts or the electric power processing device, according to the discharge Money contacts, in order to prevent the electric discharge from being concentrated due to concentrated discharge, the wind prevents the wire electrode from being broken. ...... The patent document 1 : 曰本专利 Λΐ ± Patent Document 2. Β Π 59-47123散献2 • 曰本专利特开平(一)娜号公告318719 6 1335848 f Document 3: Japanese Patent Special Kaiping (4) * [Summary of the Invention] (Problems to be Solved by the Invention) ψ • Preventing each of the electric discharge machining apparatuses disclosed in 1 to 3 is effective in improving the productivity in disconnection. However, in order to improve the line discharge, the edge of the electric (four), = expectation - can prevent the wire electrode from being broken at the same time can be prevented. • The above-mentioned New Zealand system is invented according to the present case • Below:: Electricity = the power terminal above the object and the configuration极 会 会 。 丨 丨 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 仅 施加 施加 施加 施加 施加 施加 施加 施加 施加 施加 施加 施加 施加 施加 施加The button, the electric power, and the other power supply terminal pair have a proportional suppression of the short circuit. For example, in the case of the wire-cut discharge of the patent document 2, the Luo Xie and the literature are provided for the purpose of the power supply, and the power supply from the square of the square element is supplied in a step-by-step manner, or as in the case of Patent Document 3 The electric position of the sub-pair electrode is changed as shown in the device, and the power supply from the parent to the line electrode is the same as that from the other side. The square (4) has two::== low . 3187J9 7 1335848 (Means for Solving the Problem) The wire electric discharge machine of the present invention for achieving the above object is disposed between the wire electrode of the workpiece in the thickness direction of the workpiece and the workpiece: One of the upper and lower sides of the object applies a frequency pulse voltage to the wire electrode to generate a discharge between the electrode and the workpiece. 2nd and 5th: The object's feature is that the main s, the knives, and the shackle part apply the high-frequency pulse voltage to the pair of # 拖 4, which is placed on the upper side of the upper side of the object to be reinforced, and passes through the second part. The high-frequency pulsed electric star is applied to the pair of power supply units, which are disposed in the side of the power supply unit: the side power supply unit; the second pulse remote unit, and the pulse signal of the opening and closing operation of the two-two (four) portion is supplied to the first 】Switching element 邛, the second pulse oscillator, the pulse signal for the use and the opening and closing operation is supplied to the power supply control data of the h 2 switching element, wherein J = element part; memory part 'storage 2! Each of the components is opened and closed, and the hybrid power supply is provided only from the lower power supply unit, the upper side of the high-frequency pulsed electrode is supplied, the UL balance is applied to the lower side of the wire electrode, and the upper side is supplied. The lower part is supplied with ', electric mw-h ^ ' /, electricity.卩In synchronization with each other, the high-frequency pulse & is applied to the power supply state of both sides of the wire electrode to control the vibration control unit, and the first pulse resonator and the second pulse are shy based on the power supply control data. In the above-mentioned upper power supply state and the lower side, the short circuit becomes easy to occur, and the line electrode and the 彳-right cause the upper power supply state 3J8719 8 = the lower power supply state to interact, because the line The position of the electrode and the workpiece is changed in the thickness direction (thickness direction) of the workpiece, thereby suppressing the occurrence of concentrated discharge and preventing the wire electrode from being broken. Further, in the state of the both sides, the discharge between the wire electrode and the workpiece is stabilized, so that the short circuit between the wire electrode and the workpiece can be prevented. In the series electric machine, the pulse oscillation control unit controls the first pulse oscillator and the second pulse oscillator based on the power supply control: data, so that they can be mixed in any form during the discharge machining process: The power-on state and the lower power supply state and the power supply state on both sides. The appropriate supply and the like according to the predetermined electric discharge machining conditions and the like are obtained in advance by the inspection, and the data is stored in the memory portion, whereby the short circuit of the wire = the wire and the disconnection of the wire electrode can be suppressed. Therefore, the present invention can be described in detail with reference to the drawings. DETAILED DESCRIPTION OF THE INVENTION The present invention is not limited to the practical effects described below.实形熊ΐ. The first diagram of the heart shows the structure of the wire electric discharge machine of the present invention. The wire electric discharge machine 13 shown in Fig. 1 is provided with a workpiece under the numerical control. Ray: Λη X * — ΤΤ / , 加工 machine body 80 processed into a pre-cut shape; control device 110 for numerically controlling the operation of the machine body 80; connected to the control device 110 by wire or wirelessly Inputs such as commands or data, the input unit 115 of the control device 110, and the display unit 12 for displaying the commands or data input to the control device 110, or the operation state of the processing machine body 80, 318719, the bucket δ condition, and the like. . The upper body of the upper machine is δ(), and the high-frequency pulse (four) is applied to the wire electrode in the thickness direction of the plate. The wire electrode is processed by the wire electrode and the discharge generated by the wire system. w. The workpiece w is run in a state where tension is applied to the workpiece to be in the direction of the thickness of the workpiece. 7. Plowing it, the matching electrode 1 2 3 4 travels in a predetermined direction, and the coil 10, the tension roller 12a, the guide roller W, and the wire guide 乂St:: the lower part of the platform 5 are disposed above the table 5 Configuring the wire guide. The guide roller "b I. The wire electrode 1 wound around the coil 1 is pulled out by the tension two and a' and by the guide roller! 4a, the wire guide 丄h, the wire guide 1 b And the guide roller 14b is guided in the vertical direction and then pulled back to the tension roller core' and recovered into the wire recovery tank 18. The pulling speed of the wire electrode 1 of the tension roller (10) is not determined to be the line of the tension roller 12& As a result of the rapid pull-out of the electrode 1 318719 1 , the wire electrode 1 travels in a state where tension is applied so that the workpiece w is traversed in the thickness direction thereof. The electric dust is applied to the wire electrode, and the pair of 3 power supply portions 20a and 20b are respectively disposed on the upper side of the table 5, and the power supply is placed under the upper power supply=^^5 on the wire guide 16a, and is disposed on the table. The lower power supply unit 20b (hereinafter referred to as "lower power supply unit") is positioned below the line guide muscle. Further, the first power supply unit 20a is connected to the first switching element unit 25a having at least one switching element, and the first switching element unit 25a is connected to the fifth switching unit 35a. Further, the lower power supply unit 2b has a second switching element portion 25b having at least one switching element, and the tool switching unit is connected to the main power source 30 and the second pulse to the middle (four). The main power source is also connected. The predetermined high electric power is supplied to the second brother 1 switching element unit 25a and the second switching element unit 25b, the m / = 35a and the second, respectively, in the thick bank of the object W to be supplied. The pulse (four) device is supplied to the first switching U25a or the second switching element portion 25b to control the pulse signal for switching the switching of the π-choppers 25a and 25b. Use the pulse vibrating plate described later for a long time of 4 95 pairs! The pulse vibrator 35a and the second pulse oscillating device are controlled to operate, and each switching element portion 25a'25b is closed by a predetermined hi. This can be supplied from the upper power supply unit 2Qa or the lower 2 or from the upper side. The portion 2Ga and the lower power supply unit _ double; = the frequency-hopping pulse voltage is applied to the line electrode 1 〇, and further, when t starts or restarts the workpiece & electrical discharge machining, the wire electrode i is processed and processed Whether the gap of the object w falls within a predetermined degree i or the like, a relatively low pulse voltage is supplied from the sub power source 4 to the upper power supply portion 20a through the third switching element portion 45a, and is supplied to the lower side through the fourth switching portion 45b. The power supply unit 2〇b. At this time, each of the third switching element portion 45a and the fourth switching element portion 45b is simultaneously closed. Further, the potential difference between the portions 20a and 20b and the workpiece W is detected by the electric star detection '50, and the main power source starts to operate when the detection result is within the predetermined range. On the other hand, when the above detection result does not fall within the predetermined range 318719 11 1335848, the gap width of the work a 5 is made by the heart. In order to 佶"% 5 weeks of the whole processed object? With the wire electrode 1 ^ ' hall, see the counter-horse so that the table ς has the table drive device 55. When the work is carried out, the machine 5 is connected to the workpiece n, and during the release of the workpiece W, the work a 5 P& ° moves in a predetermined direction. This 〇 〇 5 series is equipped with a linear encoder (not shown), and the speed measurement is based on the speed sensing detection results such as / circle or ^ editing device. The measurement is based on: === the speed sensor杲 杲 杲 杲 — — — — — — — — — 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制The time is from the processing fluid supply device 6〇, : The discharge of the working fluid is added „#. Rc-K ^ ^ i The upper nozzle 65a and the lower side of the processing fluid are supplied to the processed, nozzle-system configuration is processed The object w:::, = between the poles 2. The upper side of the force certificate 4 a is above and the lower side nozzle 65b is equipped with the workpiece W below. The processing liquid power is used to smear and the sputum supply device 6 具有 has a flow meter for measuring the moon 'The &1 measurement function will be, the supply (4)) and the lower side of the mouth =: 65a supply of processing fluid (flow) will be measured separately (four) supply of processing fluid supply in 1: on the one hand 'control processing The control device 110 to the operation of the machine body 80, the H memory unit 85, the calculation-control unit 9G, and the pulse (four) control unit 95. The 85 series stores the numerical control data used for the operation control such as the wire device 55 or the processing=!; 60, and stores the respective opening and closing operations of the switching element portion 25a and the second switching element portion to control the supply of the lightning. The power supply control data of the form of the power supply to the line electrode 1. The power supply control data is set to 318719 12 ^0^+0 under standard electrical discharge machining conditions to prevent the wire electrode 1 and the processed electrical control data. In the case of the eighth or the wire electrode disconnection, the second opening/closing second switching device unit 25b is opened, and the second knife changing member is opened and closed while the number of the switching member 25a is open. The portion 25a of the first switching element unit 25: :=== The knife and the unit 25b are synchronized with each other and the power supply control data stored in the memory unit 85 is predicted or predetermined to be added by line discharge, ', ', β丨 ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' When the operation of the J machine 130 starts, the auxiliary power source is first activated: 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The operation of the supply device 6〇, etc. The workpiece 4 is placed in the work: Κ 糸 Controls according to the numerical control data ^ The movement of the second movement f in the predetermined direction of the table 5 is 55, and the supply of the machining liquid is 6Q. The numerical control data, the nozzles 65a and 65b, the pre-flowing machining liquids are supplied to each of the control units. The p 90 system is based on the potential detection result of the voltage detecting device 5, and is applied from the line electrode 1. The energy of the high-frequency pulse voltage of the workpiece W, and the stage at which the accumulation is measured, is based on the U-assisting speed. In addition, the material thickness of the workpiece w is calculated successively from the high-frequency energy setting and processing speed, etc., and the control data from the above 318719 13 1335848 should be applied, and the online power will be applied. The feedback is controlled by feedback. Specifically, the system: two: the pulse interval of the frequency pulse voltage is subjected to feedback control. The second control display unit, a king, the city, the j device, the J, the command state, etc., are displayed on the display unit; the 20 or the "machine body 8° movement is the pulse system" is started under the control of the calculation section 9G. The power supply "number = predetermined power supply control data of the memory unit 85 is oscillated: = the first pulse oscillator 35a and the second pulse: =: T are controlled. The memory unit 85 stores a plurality of types of power supply. When the data is controlled, the user specifies the κ and electric control data of the 夕 夕 a before the electric discharge machining of the μ object W by the input unit 115. At this time, the power supply control data of the storage burial 85 is displayed. In the display unit, the user can easily select the desired power supply control data. The power supply read by the soap user pulse oscillation control unit 95 includes: the opening of the second switching element portion 25b is as follows: Partial data; in the jth switch; 'under, close the first switch T mmm ^ Wu兀. 卩25a open and open the closed brother 2 switch component 2 5 b data; and make the first part 25a and 2 The switching element unit 25b synchronizes with each other and discharges the data in the period during which the processed object is evaluated. Therefore, only the form of the t phase I 丨徂 φ # 'pre-mixed 匍 is provided for m〇a to apply the high-frequency pulse power to the side power supply state repeatedly, and only the lower power supply unit 2〇b will give the high to the sequel The pulse voltage is applied to the power supply, and the power supply state, and the high-frequency pulsed ink is applied to the line electrode from the upper power supply unit and the lower side supply power supply 318719 14 1335848 state. A schematic diagram showing the relationship between the waveforms of the pulse signals supplied from the respective pulse oscillators 35a and 3 to the second switching element unit 25a or the second switching element unit, and the power supply state of the two-wire electrode 1 is supplied. The pulse signal of the "from the first" pulse oscillator is supplied to the first king switching portion π-part 25a, and the pulse waveform of the low-level l-plate ancient level H is repeated at a predetermined period, and is supplied from the second pulse oscillator 35b to the first When the pulse signal of the 7-knife-changing element portion 25b is maintained at the low level L, the switching element portion is opened and closed in the state in which the switching element portion 25b is opened, and the upper switching state is UF. The pulse of the i-th pulse vibration • h... supplied to the i-th switching element portion 25a The signal system maintains the low level L, and the pulse signal that is supplied from the second pulse vibrator to the second switching portion is a pulse that repeats the low level and the high level at a predetermined period. In the state of the opening and closing of the 'Yi Niu 25b', it becomes the lower power supply state LF. After that, • II! I, (4) device 仏 is supplied to the first switching element part: Pulse ^ Tiger and Zidi 2 pulse oscillator ship supply When the second switching element unit is in a pulse waveform in which the pulse signals are synchronized with each other, the second switching element unit and the second switching element unit 25b are opened and closed in synchronization with each other, and thus the two-side power supply state BF is obtained. The inventor learned from experiments that the occurrence of the frequency of the wire electrode 1 or the wire breakage of the wire electrode 1 is difficult, depending on the material of the wire electrode 1 or the back furnace, the field of the wire, do not rely on the nozzle... The liquid quality of the coffee liquid, the supply amount of the working fluid from each spray, the material to be processed from the material W, or the shape of the product to be processed by 318719 15 1335848, and the processing conditions vary, but are shorter. When the respective power supply states are periodically switched, the short circuit may occur frequently, and the processing speed is not easily improved. It is also known from the experiment that it is easy to cause the wire electrode to be broken when the number of pulses under the power supply is set too much. For example, the sum of the number of pulses of the high-frequency pulse voltage applied to the line electrode i in the upper power supply state and the number of pulses of the high-frequency pulse voltage applied to the line electrode 1 in the lower power supply state is set to When the number of pulses of the high-frequency pulse voltage applied to the line electrode 1 is the same in the side power supply state, when the number of pulses in each power supply state is set to less than 3, the wire electrode i and the workpiece W are short-circuited. Frequent occurrences and a significant reduction in processing speed. Further, when the number of pulses in the power supply state is set to be greater than or equal to G, the position of the discharge point between the workpieces W and the workpiece W is not dispersed in the direction of the thickness of the workpiece w, and the wire electrode is likely to be broken. line. Pole 1 = pulse == hair: The human system is experimentally known: the ratio of the number of pulses applied to the power supply state on the side of the line is too small. The frequency of occurrence of the short circuit with the workpiece (7) is changed: the object is easily attached to the second one and the time is 'the short side of the wire electrode 1 and the workpiece w. The upper side power supply state can be mixed by proper mixing. , hunger, - like evil and power supply on both sides to suppress. There is a pulse_亀 system for controlling the respective actions of the third pulse 3J8719 16 1335848 vibrator 35a and the second pulse oscillator 35b based on the stored private control data, and the upper power supply state and the lower side exist with == Side power supply state and two sides for #电二=Power supply control. Therefore, by experiment, find the appropriate

2 = Pre-stored in the memory unit... This can suppress the short circuit on the line, the workpiece w, and the wire electrode disconnection, respectively. The productivity is easily improved in the processing machine 130. For the I-to-month line EDM machine, the main power supply can be divided into a first main power source and a second main power source in order to suppress overheating of the wire electrode at the center portion. Έ A schematic diagram showing an example in which the main power source has a second main power supply and a second main discharge. Line shown in Figure 3 Virtual: Main: Medium 'Main power supply 30 has the first main power supply 4 Original I first main power supply ^ via the first switching element

I: plate; 4 side power supply portion 2Ga, and is connected to the workpiece portion W portion L. Moreover, the second main power source _ is via the second switching element

The lower side power supply unit is connected to the lower portion of the workpiece W in the direction of the board. The operation of the first main power source 3 is controlled by the calculation-control unit 9Ga. The configuration other than the above-described one of the first and second members 130 is the same as that of the structure of the second member 130 of the power supply unit 30b. Therefore, the configuration shown in Fig. 3 and the structure shown in Fig. 1 are shown. The components common to the members are denoted by the same reference numerals as those of the same reference numerals, and the description thereof will be omitted. "Processor of the electric machine 140 This system gives a new 318719 17 1335848 piece to the 80A, and the control unit is given a new component symbol 丨丨〇A. In the wire electric discharge machine 14 of the above-described configuration, the i-th main power source 30a is connected to the upper portion in the thickness direction of the workpiece (8), and the second main power source 1 is connected to the lower portion of the workpiece W in the thickness direction. The power supply from both sides, the impedance from the first main power supply 30a to the discharge point, and the impedance from the second main power supply to the discharge point, the closer the position of each discharge point is to the center of the thickness direction of the workpiece w' It gets bigger. The result, the wire electrode! The value of the discharge current between the workpiece and the workpiece w is smaller as the position of the discharge point becomes closer to the center portion of the workpiece w in the thickness direction. \弟4 diagram shows the relationship between the package position (position of the discharge point) and the discharge current value when the wire electric discharge machine 140 is set to both sides:::': • μ, +. ^ ,, 1L2·4 is not the above relationship of the wire electric discharge machine 13 shown in Fig. 1 . In the case of the real soul, the electric current value of the thunder, and the electric value of the dotted line L2, are obtained under the same processing conditions. • It is obvious that the following: Fig. 4 shows that the value of the discharge current between the on-line electrical discharge machines 130 and 140 = the position of the discharge point is the position in the center of the thickness direction of the workpiece. small. The degree of decline is that the on-line electrical discharge machining is too large when the online electric discharge machine is 13 〇. • The same two forces::: = The discharge current value of the thick central part itself is in the degree of one (four) two:: electric processing seam like the tongue 'line electric discharge machine, the system will add the pole and the workpiece, visit , 1 仏 仏 至 线 之间 * * * * * * * * 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 318 The lower portion in the thickness direction is not easily cooled by the machining liquid, and therefore the wire electrode is broken at the plate thickness of the workpiece. However, in the wire electric discharge machine 14A shown in Fig. 3, the discharge current value at the time of the power supply state on both sides becomes smaller as the value becomes closer to the center portion in the thickness direction of the workpiece boundary, so The wire electrode in the thickness direction of the workpiece w! Overheated. Therefore, it is easier to prevent the wire electrode from being broken than the wire discharge hoisting machine described in the description of Fig. 1 with reference to Fig. 1). Therefore, according to the wire electric discharge machine 14A, the wire electrode can be prevented by mixing the upper power supply state and the lower side supply voltage = in the same manner as the wire discharge plus = in the predetermined state. And the workpiece; and it is easier to suppress the line than the wire electric discharge machine 13 : = is easier to improve than the wire electric discharge machine 13 . In the electric discharge machine, the height of the ζ shaft (when the relative height of the upper power supply unit is changed), the distance from the discharge point to the power supply unit will be close to the power supply circuit from the upper power supply unit to the power receiving point (^路f The power supply circuit ") and the power supply circuit U that has reached the discharge point via the lower power supply unit are referred to as the "lower power supply circuit"), and the impedance of each of the power supply circuits is large and the power supply circuit for the large current circuit of the discharge current of each power supply circuit is large ( The power supply circuit with a small impedance) is likely to cause the wire electrode to be broken. In the wire electric discharge machine of the present invention, according to the deviation of the impedance between the upper power supply circuit and the 318719 19 1335848 and the lower/lower, the high-frequency pulse supply conditions for the power supply circuit of the upper power supply circuit are adjusted, and It can prevent the wire electrode from being broken due to the impedance deviation between the electric circuits. Fig. 5 to Fig. 7 are schematic diagrams showing the line discharge machining of the wire electrode disconnection caused by the resistance = resistance deviation = in the structural members shown in the figures, as shown in Fig. 1: The same as that of the component symbol used in FIG. 1 is attached, and the description thereof is omitted. (4) The wire electric discharge machine 150 of the present invention is provided with pulse oscillation control. Control device 110B of p95a. The pulse ringing control unit 9 is stored in advance by the user in the data of the two-axis height of the memory unit 85 (the height of the upper power supply unit 22 in the lower broadcasting and television unit 20b), or from the numerical control data stored in the 1 hidden The Z-axis height is compared, and the two-axis height disk j value is compared to obtain the impedance relationship of the upper power supply circuit and the lower power supply circuit. Then, by, for example, calculating the readout control data from the memory unit to change the discharge current value of the power supply circuit having a larger discharge current value trr of the power supply circuit having a smaller impedance, the pulse oscillation control is The operation of each of the first pulse oscillator 35a and the second pulse oscillator 35b is controlled based on the changed power supply control data. For example, the discharge current value can be adjusted by changing the pulse length of the high-frequency pulse or the inter-pulse ratio, or by changing the number of supplied pulses to adjust the energy of the high-frequency pulse voltage supplied to the line power w. In the first, the knife-changing element portion 25a and the second switching element portion respectively have a plurality of switching element %, and since the number of switching elements that are open is changed, the high frequency of the library 318719 20 1335848 to the line electrode 1 can be adjusted. In addition to the above, in the above-mentioned beauty, the four-characteristic reference value assumed when the power supply control data is used is, for example, (4) stored in the memory unit 85. The line discharge plus = ^ is used as a flat plate It is especially suitable when the workpiece w is used. Fig. 6 shows the line of the electric discharge machine 16 〇 具 ° 具有 具有 演 演 具有 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 控制 脉冲 脉冲 脉冲 脉冲 脉冲 脉冲 脉冲 脉冲 脉冲In the same way as the calculation of the control unit 9〇 shown in the figure! (in the same way as in the case of the work of the first line, the energy is applied to the force of the force and the speed of the work, etc., and the work of adding the second thickness is successively calculated.旎' and the result of the difference is transmitted to the pulse oscillation control unit. The map is displayed in the speed measurement device (amplified in Fig. 1). The pulse oscillation control unit 95M transmits the calculation result from the calculation-control unit_ Compare with the reference value to find The relationship between the impedance of each of the power supply circuit and the path. Then, the power supply control data read from the memory unit 85 by = dh is such that the discharge current value of the power supply circuit in the rape: is close to the power supply with a large impedance. = electric current value 'The pulse train control unit controls the respective operations of the first pulse (four) device 35a and the second pulse two = f" 35b by the changed _ = shot. Further, the above reference value is used. It is assumed that the thickness of the control data is assumed to be generated, and the reference value is, for example, stored in the memory unit 85. The wire electric discharge machine (10) is of course suitable when processed (four), but is The force ^ recess or hole is also integrated. (4) $ into the line shown in Figure 7 discharge and discharge machine 170 series with calculation - control 318719 1335848, pulse vibration part 95c and thickness determination In the control unit 1110D, the three-dimensional data of the workpiece is stored in the memory unit 85. The implement control unit 90c controls the operation of the thickness determining unit 100, and the thickness is determined by: Data and numerical control stored in the memory unit 85 (table driving device 55) Based on the numerical control data, the specific thickness of the workpiece to be processed at the EDM portion is determined by the specific electric discharge machining portion, and the data of the thickness is transmitted to the pulse vibrating surface portion 95b. Pulse, oscillation control portion 95c compares the data of the thickness of the plate thickness transmitted from the calculation-control unit 9〇c with the reference value, and obtains the magnitude relationship between the impedances of the upper power supply circuit and the lower power supply circuit. Then, for example, by calculation Changing the power supply control data read from the memory unit 85 such that the discharge current value of the power supply circuit having a small impedance is close to the discharge current oscillation control unit of the power supply circuit having a large impedance, and the changed power supply control data is disconnected. In order to control the third pulse oscillator shirt and the second pulse oscillator, the respective values of the above-mentioned reference values are the thicknesses assumed when the power supply control is used. This reference value is stored in the memory unit 8 in advance, for example, when the wire electric discharge machine (7) uses a flat plate as the workpiece W, it is of course suitable, and the concave portion or the hole is formed in advance in the workpiece w. . Each of the above-described wire electric discharge machines 15 〇, 16 〇, and 17 , 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整 调整Condition, because it is easy to prevent the wire electrode from being broken due to the impedance variation between the power supply circuits, according to the wire electric discharge machine 15〇, 16〇, 17〇, by 318719 22 1335848 and the second figure The wire electric discharge machine 13G shown in the same manner has the upper side supply state in the form of the material mixture σ and the τ side power supply state and the power supply state on both sides can prevent the wire electrode and the workpiece Wi, # Β _4p & Moreover, it is easier to suppress the wire electrode from being broken than the line enemy electric machine 130. Gentleman 1QH - ρ α. ^ π stays, compared to the line electric discharge machine 130 and the valley is easy to produce. In the wire discharge/processing machine of the present invention, the supply conditions for supplying the high-frequency pulse power C to the respective power supply circuits are adjusted in accordance with the impedance of the upper power supply circuit and the impedance of the side power supply circuit. It can be configured to prevent wire electrode breakage due to impedance variation between power supply circuits. Fig. 8 and Fig. 9 are diagrams showing an example of a line electric discharge machine capable of adjusting the supply condition of the supply of the ancient frequency pulse voltage to each of the power supply circuits in accordance with the impedance of the upper power supply circuit and the impedance of the lower power supply circuit, respectively. The structural members shown in the drawings are the same as those of the structural members shown in the drawings, and the same reference numerals are used for the components in the drawings. The wire electric discharge machine 180 shown in Fig. 8 includes a processing machine main body 8B having an impedance measuring unit 70, and a control device 110E having d of a pulse oscillation control unit. The impedance measuring unit 70 measures the impedance between the main power supply 30 of the upper power supply circuit and the upper power supply unit 2A, and the impedance between the main power supply 30 and the lower power supply unit 20b of the lower circuit, respectively. This actual measurement result is transmitted to the pulse oscillation control unit 95d. The pulse (four) control unit compares the measured result of the impedance measuring unit 70 with the reference value to obtain the magnitude relationship between the impedances of the upper power supply circuit and the lower power supply circuit. After 318719 23 1335848, the self-memory δ5 _ data is changed by, for example, calculation, so that the discharge current value of the power supply circuit having a small impedance is smaller, and the power supply circuit having a larger U number is larger, the impedance is Based on the changed power supply control data, the "1 pulse" of the oscillator 35a and the second pulse oscillator 35b is assumed to be generated using the power supply control data: the reference value is stored in the memory, for example. Part 85. ::The wire electric discharge machine 19 shown in the figure has the control unit 110F' in the memory section... the manufacturer or user of the line discharge heater (10) is in advance (4) on the top side. impedance. Specifically, the pre-storage:: the main power supply 3 of the package circuit of the shell 1 and the upper power supply unit, and the impedance between the main power supply 30 of the lower power supply circuit and the coffee supply of the lower side power supply. actual data. The pulse oscillation control unit is connected to the measured data of the above-mentioned respective impedances stored in the memory unit 85, or =

The comparison of the Lu value is used to find the *small and small relationship between the thunder and the electric power supply circuit on the upper side. Then, by changing, for example, the power supply control data of the memory = to make the power supply circuit with a small impedance: discharge the discharge current value of the power supply circuit with a large impedance, the pulse 956 is finely controlled by the power supply. According to the above, the first pulse oscillator 35a and the second pulse oscillator 35b are controlled to be =1. Further, in the above reference value, the impedance of the power supply control data is used, and the reference value is, for example, Pre-stored in the memory department. In the above-mentioned wire electric discharge machines 180 and 19, the impedance deviation between the power supply circuits is adjusted according to the impedance of the upper power supply 318719 24 1335848 and the supply voltage of the high-frequency pulse voltage supplied by the lower power supply circuit. (Size, 2: Therefore, it is easy to prevent the wire electrode from being broken due to the wire electric discharge machine, etc.) The wire discharge machining described in the following: The technical effect of the invention is achieved. The line electric discharge machine is called "broken line pre-not, # 牡 know and there is a sign of disconnection (when the w is swayed, the first pulse can be added to the second line avoidance function.) Line 10 of the line of the hairline is broken. The figure 10 shows the structure of the attached cable/electrical discharge machine. The 1G 7 force: the line 20. The system has: a processing machine and two pulse oscillation control. The control of the Ministry of 95f is set to ugg, in addition to the power supply of the implementation of the first embodiment of the description of the 邛 5 5 「 「 「 i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i i ") outside J mega-hours to avoid line electricity Power supply control of the pole disconnection = ==: number: "). In the structure shown in Fig. 10, if the structural members of the structure 2/1 and the brother 1 are common, the components with the same symbol as the first one are marked. The above-described disconnection indicator detecting unit 75 is configured to determine the position of the discharge point by the electrical connection and the lower power supply unit 鸠 and the workpiece w, for example, the current division ratio of the current of the lower power supply circuit. Second, the double-measurement discharge point is concentrated in one part of the centralized discharge; the text is judged as the cable 25 318719 1335848: break: the omen, and the predetermined signal (hereinafter referred to as "broken line warning detection") The pulse oscillation control unit 95f receives the disconnection detection signal, and reads the disconnection avoidance power supply control data from the memory unit 85, thereby changing the power supply control data, and f is disconnected. The operation of the rushing oscillator 35a and the second pulse oscillating device 35b is controlled based on the power supply control data, and the electrode is disconnected. For example, the 帛i pulse oscillating device and the second pulse are | The actions of the gamma are controlled to interact with the upper power supply state and the lower state. 'Therefore, the position of the discharge point is constantly dispersed to avoid the line electricity going to the line. Since the wire electric discharge machine has the above-described wire electrode breakage avoidance function, it is compared with the wire electric discharge machines described in the first to fourth embodiments. According to the line discharge machining machine 130 shown in FIG. 1, the first line of the first line power supply state and the lower side are present in the same manner as the line electric discharge machine 130 shown in FIG. The power supply state and the power supply on both sides can prevent the wire electrode from being short-circuited with the workpiece w, and it is easy to suppress the wire electrode from being broken compared to the wire electric discharge machine 130. As a result, it is easier than the wire electric discharge machine 130. Improve the productivity. When the line electric discharge machine has the additional line electrode disconnection avoidance function, the following functions can be added to the pulse vibration i control unit: After a long-term (1 to 2: left-turn field of view, the power supply ratio is restored to a predetermined ratio). , that is, the basic supply control "w data based on the control of the i-th pulse oscillator and the second crying, the upper side power supply state, the lower side power supply state and the two sides supply;

The power supply of the state is called “power supply ratio recovery function” under the seat f IV T y 4 P. 318719 26 1335848 Figure 11 „, „, the member is not in the above-mentioned pulse vibration cover control 9 • ratio = power supply mode - example Schematic diagram. As shown in the ηth diagram: J3 = the time Τ, the pulse oscillation control unit 95 controls the first pulse vibrations Mil35a and the second pulse C based on the basics. Under the basic power supply control data, after the power supply state and the lower power supply state are respectively performed, the power supply state of both sides is performed in two cycles. • • 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自 自The vibrating device 2 and the 35 brothers = the oscillator, each action, and the first pulse vibrating: ": the next two: the pulse vibrator 35b each action is controlled to the upper side = Γ state interaction occurs. Then, from the disconnection warning check = 75 (four) (four) detection money stopped at time T2, pulse = 5a and brother 2 pulse vibration μ coffee each action f, the lower side power supply state and the power supply ratio of the two sides of the power supply ratio 成 = Power supply ratio under power control data. '··, ^, 隹—Specifically, the period from the time L to the time of the stop is not the state, so the first pulse (four) device and the second pulse = each action are controlled to the upper power supply state. The ratio of the power supply on the lower side to the power supply state on both sides becomes ι:ι:2, and the period from the upper power supply state and the lower power supply state to the second power supply state = cycle "and the power supply state appears on both sides" 8 cycles. The power supply ratio of the 1 318719 27 1335848 side power supply state, the lower power supply state, and the power supply states on both sides is restored to the power supply ratio under the basic power supply control data. The power supply ratio return function of the pulse oscillation control unit 95ί includes: calculating the number of functions of the power supply ratio under the basic power supply control data, the power supply state of the upper side of the power supply control data, and the power supply of the lower side of the power supply control data. The function of the status and the number of occurrences of the power supply status on both sides; generated by the power supply under the power supply control data for the disconnection avoidance: for: , the deviation of the frequency, that is, the power supply from the basic power supply control data: And the function of correcting the deviation. After the pulse is oscillated again, based on the basic power supply control data, the phantom pulse oscillator 35a and the second pulse oscillating device can be additionally controlled by the first pulse (four) device 2 = sway The function of each action is to prevent the short circuit from being detected when the line power is detected as a warning or short circuit, or the solution is called "short-circuit anti-cutting energy". The outline of the line shows the line discharge plus system with the short circuit prevention function added. The wire electric discharge machining device 110H shown in Fig. 12 is controlled by the control of the pulse train control unit 95g or the memory of the wire mesh portion 85 in the presence of the above-mentioned short circuit (the following t is Among the structural members for the power supply control number for releasing the short circuit, the first use: electronic control data "). In the case of Fig. 12, the structural members that are not common to the figure 1 are the same as those of the same reference numerals, and the description thereof is omitted. + 遣 控 彳 〇 〇 〇 〇 以 以 以 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压 电压Omen or short circuit. Specifically, the potential difference between the power supply unit and the workpiece W detected by the self-powered (four) device 50 has been lowered. The difference between the power supply voltage and the workpiece W is a discharge voltage value, and the value is smaller than the line power. The material of the workpiece, the liquid quality of the machining liquid, and the application, discharge, and the like: The magnitude of the t-frequency pulse voltage is determined as a precursor to a short circuit or a short circuit based on a predetermined level. Then, the signal of the short-circuit or the short-circuit predetermined signal (the following π-table control unit 90d is used to clamp the μ, ugly/predictive detection signal) to the pulse electric addition: machine '^95g. In addition, the above-mentioned average discharge electric house value is obtained in advance by the quotient of the wire arranging machine (4) or by the user, and is stored in advance in the memory unit Μ辰盈n ^ 〇t relatives.卩9 G d receives the pulse of the short-circuit/premonition detection signal. (4) The memory unit 85 reads the short-circuit prevention power supply control number=:: changes the power supply control data, and controls the pulse oscillators 35a and the 2 pulse vibrating b unwinding electrode 1 and being added, short circuit, or * oscillation crying 35 ^ work? The road to the package. For example, control the first pulse power supply: state a ===35b each action to become the two sides to reduce the line electrode! The discharge between the workpiece and the workpiece is stable. Hunt this to prevent the wire electrode 1 from being processed. Short circuit with the workpiece W. The New Zealand Road, or the 疋 318 318719 29 1335848 Since the wire electric discharge machine 210 has the above-described short circuit prevention function 'therefore, the line is placed 1 ^ compared to the line of the description form 5 to 5, the package processing machine and the valley easy to prevent the wire electrode 1. Short circuit of the workpiece w. Therefore, the root 210, by the 盥 ] 圆 圆 夕 夕 夕 夕 夕 夕 夕 夕 夕 夕 夕 夕 夕 夕 夕 夕 夕 夕 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线 线The lower power supply state and the power supply U on both sides can prevent the short circuit between the wire electrode i and the workpiece w, and it is easier to suppress the short circuit of the wire electrode i and the workpiece w than the wire electrical discharge machine 130. As a result, productivity is easily improved compared to the wire electric discharge machine 13〇. When the short-circuit prevention function is added to the electric discharge machine, the power supply ratio return function described in the fifth embodiment can be implemented at the pulse oscillation control side port. The 'f-shaped bear 7 ^ Ming line electric discharge machine can be connected with the flow rate of the machining fluid supplied to the upper nozzle and the lower nozzle from the self-adding liquid supply device to control the m-th oscillation oscillator and the second pulse oscillation. The function of each action of the device. The #13 diagram outlines the configuration of the wire electric discharge machine to which the above functions are added. The wire electric discharge machine 22 of Fig. 13 is shown. There is a control device 11〇1 having a different control unit|the unit 90e, a pulse oscillation control unit 95h, and a flow rate comparison unit (10). In the structural members shown in Fig. 13, the same components as those in the first embodiment are denoted by the same reference numerals as those used in the first embodiment, and the description thereof is omitted. The calculation-control unit 9Qe controls the liquid supply device 60 based on the numerical control data (the numerical control data for the machining liquid supply device 6) stored in the storage unit 85, and controls the operation of the liquid supply device 60. μ The flow rate of the machining liquid supplied to the upper nozzle 65a and the flow rate of the machining liquid supplied to the lower side spray 318719 30 1335848 ^ 65b are transmitted to the flow rate comparison unit = the flow rate comparison unit that transmits the data compares each data with the reference The value ^ 'and the result of the relay pulse (four) control department Na. For example, the data of the flow rate of the fluid assumed at the time of creation of the power supply control data is used as the reference value. The pulse oscillation control unit 95h reads the power supply control number ' from the memory unit 85 to control the first pulse demodulator 35a and the second pulse vibrator C, and the comparison result of the flow rate comparison unit m. When the flow rate of the J machining fluid exceeds the reference value, the above-described power supply control data is changed by, for example. In other words, the power supply control value is changed so that the power supply to the line on the same side as the nozzle position at which the flow rate of the machining liquid exceeds the reference value is caught by the upper power supply unit 2a and the lower power supply unit. The power supply ratio of the high frequency pulse power of the electrode 1 becomes low. At this time, based on the power supply control data changed, the respective operations of the first pulse oscillation state 35a and the second pulse oscillator 35b are controlled. »When the workpiece is subjected to wire electric discharge machining, the flow rate of the machining fluid supplied from the machining fluid supply to the upper nozzle and the lower nozzle is not constant in the entire process of the J-process, for example, the relative of the wire electrode The flow rate of the machining liquid is different in the portion where the movement path is linear and the portion having an arc shape. Further, the flow rate of the working fluid is different between the upper side mouth coffee and the lower side mouth 65b. When the flow rate of the machining liquid is different from the upper nozzle, the flow rate of the machining fluid from the flow rate of the working fluid (the gap between the wire electrode 1 and the workpiece W) is proportional to the flow rate of the machining fluid. The amount of the machining fluid that flows into the machining tank with a small flow rate is small, and the number of the 318719 31 1335848 is small, and it is easy to leave machining chips in the machining tank on the nozzle side where the flow rate of the machining liquid is large. As a result, the discharge frequency at the nozzle side where the flow rate of the X liquid is increased is high, and the wire electrode is liable to be broken. In the wire electric discharge machine 22A shown in Fig. 13, when the nozzle whose flow rate exceeds the reference value is judged, the power supply unit on the same side as the nozzle is supplied to the wire electrode i. In the method of controlling the power supply ratio of the high-frequency pulse voltage to be low, the control of the first pulse oscillating device 35a and the second pulse oscillating __ each operation is supplied to the upper nozzle 65a and the lower side. When the flow rate of each of the processing fluids of 65b varies, the wire electrode is also prevented from being broken. Therefore, according to the wire electric discharge machine 22A, the wire electrode 1 can be prevented by mixing the electric state with the lower power supply state and the power supply state of both sides in a predetermined pattern in the same manner as the wire electrical discharge machine 130 of the Uth. Short-circuit with the workpiece W, and it is easy to suppress the wire electrode disconnection compared to the line m(10). As a result, Bu ^ improves productivity. ,. The wire electric discharge machine of the present invention is described as being easier than the wire electric discharge machine m, and the present invention is not limited to the above-described seven embodiments. For example, it is easy to store the desired power supply control data in the memory:,: the upper power supply state and the lower power supply state and the power supply on both sides: two =: form (appearance form) is input by the input unit; The control data is stored in the memory unit, and the control device may be provided with a number of minds. FIG. 4 is a schematic diagram of an electric discharge machine. In the line discharge shown in Fig. 4, the control device i1〇J of the 318719 32 丄 '335848* machine 230 is input from the input side with the mixed state of the upper power supply state and the lower power supply state and the power supply state on both sides ( When the form appears), the data conversion unit 1G8 in which the power supply control data of the form should appear in pairs is set. The power supply control by the data conversion unit (10) is stored in the memory unit (9) through the calculation-control unit 9Qf. = = 95 series, the above power supply control data is based on the various actions of the sword. Further, in the structural members shown in Fig. 14, the structural members are not common, and the description thereof will be omitted. The components of the device are given the same component symbols, and although not shown in the drawings, in the line of the present invention, the device can be connected to the main power source, which is also connected to the main f.卩 弟 弟 2 2 鄕 鄕 鄕 鄕 — — — — 鄕 鄕 鄕 鄕 鄕 鄕 鄕 鄕 鄕 鄕Similarly, the a $source-construction switch _ can be used as a sub-power supply to form a sub-power supply, and the other components can also be used for the same. . The 2nd pulse vibrating power supply constitutes a component as a main power source or component. It can also be used as one of the pulse oscillation control. It can also be set up in one for the two plus and no picture system....The switch element is set. The heart of the first line electric discharge machine is set to the unit of the switching element. 240 machine tool body _t brother 5 diagram of the line discharge machining one switching element μ shell 1 power supply unit 20a and set ("called "the first "knife change component department"), 3IS7J9 33 1335848 and the first switch The switching element portion other than the element portion 28a is not connected to the upper power supply portion 20a. In the same manner, one switching element portion 28b (hereinafter referred to as "second switching element portion 28b") is provided corresponding to the lower power feeding portion 2b, and the switching element portion other than the second switching element portion 28b is not connected to the lower portion. Side power supply.卩 20b. Each of the switching element portions 28a and 28b is shared by the main power source 3A and the sub power source 40. The i-th pulse $ oscillator 35a' is connected to the first switching element portion 28a, and the second pulsator 35b is connected to the second switching element portion 28b. The i-th switching element unit 283 may be an individual member different from the main power source 3〇 and the sub-power source, or may be a constituent member of the main power source or the 40. Similarly, the switching element unit can be used as a member of either the main power source 30 or the sub power source 4A. Regardless of the fact that a plurality of switching element portions are provided in one power supply unit, in the plasma processing machine of the present invention, any mixed line can be generated during the period of the electric discharge machining, and the upper side power supply state and the lower side power supply state can be in the appearance of the port. The electrical state and the power supply state on both sides prevent the wire electrode and the surface of the workpiece from being discharged in the direction of the thickness of the workpiece, and the processing accuracy of the surface is appropriately thickened. If the ^2 setting can also be increased on the board, the power supply ratio of the side power supply state can be supplied to the power supply state of the lower side: 2:, and the lower part of the thickness direction of the object is processed and supplied. In the electric discharge state, it is possible to be able to improve the processing of the electric field. Processing accuracy. The thickness of the fractured material is as shown by the electric discharge machine 170 of FIG. 7 318719 34. Therefore, the thickness of the workpiece is obtained by using the three-dimensional data of the three-dimensional expansion. According to the calculation, the wire electrode at the electric discharge machining portion is applied to the machine to be processed, and the frequency of the =::: is calculated by omitting the slave, and the following embodiment:::::: : Mingzhi line EDM machine and so on. I have taken a variety of deformations, modifications and groups [simplified illustration]. Fig. 1 is a schematic view showing the configuration of the wire discharge machine of the present invention. The figure 2 shows the lightning supply from the seventh switching element portion or the pulse detector supplied to the wire electrode. A schematic diagram of the relationship between the waveform of the pulse signal of the component and the electrical sorrow of the a. 2 is a schematic view showing a configuration of an example of the line discharge source and the second main power source of the present invention. — The Pan #4 diagram outlines the layout of the power unit when the power supply is shown on both sides as shown in Figure 3. The relationship between the discharge position and the discharge current value is shown in Fig. == outline display to prevent the pattern from being formed in the wire electric discharge machine of the present invention. An example of the wire electrode breakage caused by the deviation is constructed in the wire electric discharge machine of the invention. The 318719 35 苐7 diagram of another example of the wire electrode breakage caused by the deviation is schematically shown as a configuration for preventing the power supply lightning in the wire electric discharge machine of the present invention. The line electrode disconnection of h is another - Figure 8 shows the power supply circuit itself on the side and the lower side. In the work, the high-frequency condition of each power supply circuit can be adjusted according to the second frequency of the upper frequency pulse voltage. The composition of the example. Fig. 9 is a schematic view showing the supply of the ancient frequency pulse voltage to each power supply circuit by the impedance of the eight itself on the line side and the lower side of the present invention. Ask the composition of another example of the condition. The first diagram shows an outline of the example in which the line _ line avoidance function is added to the seven-line electric discharge machine in the present green m ^ 。. The first picture shows an example of the power supply form when the pulse-excitation control unit of the electric discharge machine of the electric discharge machine of the line 彳^ ρ;! _ _ 10 is attached with the power supply to the door for the electric power recovery function. Schematic diagram. The j f 12 diagram schematically shows a configuration in which an example of the 镰 short circuit preventing function is added to the wire electric discharge machine of the present invention. Fig. 13 is a schematic view showing the addition of the first pulse oscillator and the second pulse in accordance with the flow rate of the machining fluid supplied from the processing liquid supply to the upper nozzle and the lower nozzle. A diagram showing the structure of the function of each action of the vibrating unit. Fig. 14 is a view schematically showing an example of a wire electric discharge machine of the present invention in which a data conversion unit is provided in a control unit, and the data conversion unit receives an upper power supply state, a lower power supply state, and two from an input unit. The appearance of the side power supply state is converted into a power supply control line. 36 318719 Fig. 15 is a schematic view showing the configuration of the present invention in which only one switching portion is provided in one power supply unit. [Main component symbol description 1 wire electrode _ 5 1 table 10 绫圃._ 12a ' 12b Tension roller 14a, 14b guide roller 16a, 16b wire guide 18 wire recovery box 20a upper power supply portion 20b lower power supply portion 25a 28a first switching element] 25b, 28b second switching element unit 30 main power supply 30a first main power supply 30b second main power supply 35a first pulse oscillator 35b second pulse oscillator 40 sub power supply 45a third switching element portion 45b Fourth switching element portion 50 Voltage detecting device 55 Table driving device 60 Processing liquid supply device 65a Upper nozzle 65b Lower nozzle 70 Impedance measuring portion 75 Wire breakage detecting portion 80, 80A, 80B, 80C, 80D Processing machine body 85 Memory units 90, 90b, 90c, 90d, 90e, 90f Calculation-control units 95, 95a, 95c, 95d, 95e, 95f, 95g, 95h Pulse oscillation control unit 100 Thickness determination unit 105 Flow comparison unit 108 Data conversion unit 318719 37 1335848

110, 110B, 110c, 110D, 110E, 110F, 110G, 110H, 1101, 110 J control device 115 input portion 120 display portion 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230 line Electric discharge machine

BF Power supply status on both sides Η High level L Low level Li Solid line U Dotted line LF Lower side power supply state UF W Upper side power supply state Do not Τι, Τ2, Τ3 moment

38 318719

Claims (1)

1335848 X. Patent application scope: 1 public ♦ 丨 丨 1. A wire electric discharge machine 'is in the process of being added to the patent No. 951462〇3 (9 8 f mg day} ί Λ:. ' π •. Household--the thickness of the workpiece is supplied between the wire electrode and the workpiece, and a high-frequency pulse voltage is applied to the wire electrode through a pair of power supply portions disposed above and below the workpiece. The object to be processed by the discharge generated between the wire electrode and the workpiece is characterized by having a·· The main power source applies a high-frequency pulse voltage to the upper-side power supply unit ′ disposed on the upper side of the workpiece, and applies a high-frequency pulse voltage to the first switching element unit through the first switching element unit. a power supply unit is disposed below the workpiece lower side power supply unit; the first pulse oscillator supplies a pulse signal for opening and closing the (i)th i-th switching element unit to the ith switching element unit; The second pulse oscillating device supplies the pulse money for the opening and closing operation of the second switching element unit to the second switching element unit; the memory unit stores the power supply control data, and the power supply control data is regulated. In addition, each of the i-th switching element unit and the second switching element is provided, and that a high-frequency pulse is applied from the upper power supply unit to the upper side of the wire electrode, and only from the lower side: the electric height is high. The power supply on the lower side of the wire electrode and the "the upper power supply portion and the lower power supply portion are synchronized with each other: the voltage is applied to the power supply state of the two sides of the wire electrode to achieve the power supply control. And a pulsation oscillation control unit that controls the first pulse oscillator and the second pulse based on the power supply control data based on the power supply control data (Revised) 318,719, 39, 335, 849, pp. 2. The wire electric discharge machine according to the invention of claim 2, wherein the main power source includes: a first main power source connected to the upper side pen through the first switching element. The second main power source is connected to the lower power supply unit through the second switching element, and is connected to the upper thickness portion of the workpiece. The r 3 is connected to the upper portion of the workpiece. The wire electric discharge machine according to claim 1, wherein the pulse oscillation control is based on the power supply circuit from the main power source passing through the first switching part and the upper power supply unit to the upper side of the discharge point. The impedance between the main power source and the upper power supply unit, and the power supply from the main passage through the second switching element portion and the lower power supply portion to the lower side of the discharge point The impedance between the main power supply and the upper power supply unit is changed by the discharge current value of the power supply circuit having a small impedance close to the supply voltage of the circuit, and the power supply data of the circuit is changed by the aforementioned power supply data. Controlling the operation of each of the first pulse oscillator and the second pulse oscillator based on the control data. 4. The wire electrical discharge machine according to claim 3, wherein the memory is stored in the front memory unit. For the production of the aforementioned power supply control data:, the relevant data of the Z-axis south degree, 疋dJL this) 3187] 9 40 Patent application No. 95146203 &gt; _ (August 24, 2008, 7th, the pulse oscillation control unit Determining the aforementioned impedance of the upper power supply circuit and the aforementioned impedance in the lower power supply circuit based on the correlation data of the z-axis south degree of the discharge of the workpiece and the aforementioned z-axis height stored in the memory portion. The size relationship. 5. The wire electric discharge machine of claim 3, wherein the complex has: a working σ, moving in the axial direction in a state in which the workpiece is cut; the table driving device causes the table to face 2 axial movement; a speed measuring device for measuring the driving speed of the worktable; and a voltage detecting device for detecting a potential difference between each of the upper power supply portion and the lower power supply portion and the workpiece; The control unit calculates the machining speed based on the driving speed of the previous j table measured by the speed measuring device, and calculates the application of the line electrode from the wire electrode based on the potential difference detected by the voltage detecting device. Calculating the energy of the high-frequency pulse voltage of the workpiece, and calculating the thickness of the workpiece using the energy of the processing speed and the high-frequency pulse voltage; and the pulse oscillation control unit is calculated by the calculation-control unit Based on the thickness of the workpiece, it is determined that the impedance of the upper side power supply path and the impedance of the lower side power supply circuit are large. Small off 6. A wire electric discharge machine according to item 3 of the patent application, wherein the complex has: the table 'moves in a state in which the workpiece is placed; Π (Revised) 318719 41 1335848 No. 9514 6203 Patent application (August 24, 1998) The table driving device moves the table to the 2 axial direction; the derivative-control portion controls the action of the table driving device; and the thickness of the plate, Calculating a thickness of the workpiece to be processed at a portion where electrical discharge machining is performed; and storing, in the memory portion, numerical control data for numerically controlling the operation of the table driving device, and three-dimensionality of the workpiece Data, the calculation-control unit controls the operation of the table driving device based on the numerical control, and the plate thickness determining unit calculates the electric field processing data based on the numerical control data and the three-dimensional data. The thickness of the workpiece to be processed, and the thickness of the workpiece to be processed by the thickness determining unit is According to the determination, the magnitude relationship between the impedance of the upper power supply circuit and the impedance of the lower power supply circuit is judged. 7. For example, the wire electric discharge machine of the patent application scope 帛3, in which the complex has an impedance measuring unit, the measured impedance of the upper side power supply circuit in the upper side power supply circuit is measured, and the pulse oscillation control unit is described in January 1 Based on the above-mentioned impedance measuring unit, the magnitude relationship of the impedance of the power supply circuit of the impedance side of the upper power supply circuit is derived. 8. The memory of the electric discharge machine of the line of the third application of the patent scope is stored in advance on the upper side, and the impedance in the other circuit is corrected (Revised) 3I87J9 42 1335848 Patent Application No. 95146203 __ &lt; August 24, 1998) The measured data of the impedance of the lower power supply circuit, the pulse oscillation control unit is based on the measured impedance of the power supply circuit on the upper side of the memory unit and the measured data of the impedance of the lower power supply circuit. To determine the magnitude relationship between the aforementioned impedance of the upper power supply circuit and the aforementioned impedance of the lower power supply circuit. 9. If you apply for a patent scope! The wire electric discharge machine further includes: a wire breakage detecting unit connected to the front side power supply unit and the lower power supply unit and the workpiece to detect a break of the wire electrode, wherein the pulse oscillation control unit is When the wire breakage detecting unit detects the sign of the wire electrode breakage, the power supply control data is changed such that the discharge position between the wire electrode and the workpiece is temporally dispersed, and the power supply control is changed by the foregoing The respective operations of the first pulse oscillator and the second pulse vibrator are controlled based on the data. The wire electric discharge machine of claim 9, wherein the pulse control unit detects that the wire electrode line f is pre-corrected by the wire breakage detecting unit, and changes the power supply control data to make the aforementioned The upper power supply state alternates with the aforementioned lower power supply state. 11. The wire electric discharge machine of claim </ RTI> wherein the plurality of detecting devices are configured to detect a potential difference between each of the upper power supply portion and the lower damper portion and the electric portion and the workpiece. And the calculation-control unit' determines whether there is a short circuit of the wire electrode and the workpiece or a short circuit of the short circuit by the result of the control by the voltage detecting device, and the pulse vibration control unit is in the calculation-control The Ministry of Justice has 43 (amendment) 3] 8719 1335848 - the patent application for the Yi, No., or the aforementioned short-circuit, the change of the aforementioned power supply control system = Kang; so that the aforementioned wire electrode and the aforementioned The discharge between the workpieces is stably controlled, and the operation month of each of the first pulse oscillator and the second pulse oscillator is controlled based on the power supply control data changed as described above. 12. The wire electric discharge machine according to claim 5, wherein the pulse oscillation control unit changes the power supply control data when the calculation_control unit determines that the short circuit or the short circuit is present. Power supply status on both sides. The wire electric discharge machine of claim 1, wherein the upper nozzle is disposed above the workpiece; the lower nozzle is disposed under the workpiece; the machining liquid supply device The machining fluid is supplied to each of the upper side nozzles and the lower nozzles; and the control unit is configured to control the operation of the machining fluid supply device, and supply the machining fluid of a predetermined flow rate from the machining fluid supply device to the upper nozzle and the lower nozzle And a monthly flow rate comparison unit for determining a supply amount of the machining liquid supplied to the upper nozzle and the lower nozzle and a supply amount of the machining liquid assumed when the power supply control data is created And storing, in the memory unit, numerical control data useful for numerically controlling the operation of the processing liquid supply device, wherein the calculation-control unit controls the processing liquid supply device based on the numerical control data. Operation, the pulse oscillation control unit is compared with the flow rate comparison unit (revision) 31871 9 44 brother 352 4 6203 patent Yin said the result, there is more than the above-mentioned power supply control number (the August 1998, the supply of the liquid of the liquid supply of the processing liquid, the processing of the electrical control data assumed to make In the case of the front η nozzle, the first pulse oscillating device and the second pulse (correction) 3] 87 are respectively controlled by changing the aforementioned data supply control and controlling the power supply by the aforementioned change. 9 45