CN103464844A - Discharge processing circuit - Google Patents
Discharge processing circuit Download PDFInfo
- Publication number
- CN103464844A CN103464844A CN2013104469042A CN201310446904A CN103464844A CN 103464844 A CN103464844 A CN 103464844A CN 2013104469042 A CN2013104469042 A CN 2013104469042A CN 201310446904 A CN201310446904 A CN 201310446904A CN 103464844 A CN103464844 A CN 103464844A
- Authority
- CN
- China
- Prior art keywords
- electrode
- inductance
- switch
- source
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a discharge processing circuit, which comprises a direct current power supply, a current limiting resistor, a high-speed switch, a copper electrode and an LC (inductance-capacitance) circuit, wherein the LC circuit comprises an inductor, a capacitor and a diode, the capacitor is connected in series between the inductor and the negative electrode of the direct current power supply, and is connected in parallel with the diode, the cathode of the diode is connected with the inductor, the anode of the diode is connected with the negative electrode of the direct current power supply, the negative electrode of the direct current power supply is connected with a super-hard alloy workpiece to be processed, the positive electrode of the direct current power supply is sequentially connected in series with the current limiting resistor, the high-speed switch and a copper electrode, the other end of the inductor is connected between the high-speed switch and the copper electrode, and the high-speed switch is used for exerting the pulse power supply voltage. Through the discharge processing circuit, the copper electrodes can be used for processing super-hard alloy under the condition of ensuring low power consumption.
Description
Technical field
The present invention relates to the manufacture field that discharges, relate in particular to a kind of copper electrode electric discharge processing circuit that is applicable to superhard alloy.
Background technology
The processing mode of general discharging processing machine to superhard alloy, be all to adopt copper tungsten as machined electrode, to control good processing loss, can not use copper electrode, and its fusing point is low, and loss is large, through measuring its loss usually on a 70-80% left side.But copper tungsten is expensive, and material is harder, and processing and milling is difficult for.
Summary of the invention
The object of the present invention is to provide a kind of electric discharge processing circuit, to use copper electrode, in low-loss situation, process superhard alloy.
The embodiment of the present invention provides a kind of electric discharge processing circuit, and circuit comprises: dc source, current-limiting resistance, speed-sensitive switch, copper electrode and lc circuit;
Lc circuit comprises: electric capacity and diode between the negative pole of inductance, an end that is connected on inductance and dc source; Electric capacity and diodes in parallel, the negative electrode of diode is connected with inductance, and the anode of diode is connected with the negative pole of dc source;
The negative pole of dc source is connected with superhard alloy workpiece to be processed;
The positive pole of dc source is series limiting resistor, speed-sensitive switch and copper electrode successively; The other end of inductance is connected between speed-sensitive switch and copper electrode;
Speed-sensitive switch, for applying pulse power voltage.
Preferably, speed-sensitive switch is transistor.
Preferably, the loss of circuit is 20%.
The embodiment of the present invention also provides a kind of electric discharge processing circuit, comprising: dc source, current-limiting resistance, speed-sensitive switch, copper electrode, the first switch and lc circuit;
Lc circuit comprises: electric capacity and diode between the negative pole of inductance, an end that is connected on inductance and dc source; Electric capacity and diodes in parallel, the negative electrode of diode is connected with inductance, and the anode of diode is connected with the negative pole of dc source;
The negative pole of dc source is connected with workpiece to be processed;
The positive pole of dc source is series limiting resistor, speed-sensitive switch and copper electrode successively; The other end of inductance is connected between speed-sensitive switch and copper electrode by the first switch;
The first switch is for conducting when workpiece is superhard alloy;
The first switch for disconnecting when workpiece is common alloy;
Speed-sensitive switch, for applying pulse power voltage.
Preferably, speed-sensitive switch is transistor.
The embodiment of the present invention also provides a kind of electric discharge processing circuit, comprising: dc source, current-limiting resistance, speed-sensitive switch, electrode, second switch and lc circuit;
Lc circuit comprises: electric capacity and diode between the negative pole of inductance, an end that is connected on inductance and dc source; Electric capacity and diodes in parallel, the negative electrode of diode is connected with inductance, and the anode of diode is connected with the negative pole of dc source;
The negative pole of dc source is connected with superhard alloy workpiece to be processed;
The positive pole of dc source is series limiting resistor, speed-sensitive switch and electrode successively; The other end of inductance is connected between speed-sensitive switch and electrode;
Second switch and inductance in parallel;
Second switch, for disconnecting when electrode is copper electrode, conducting when electrode is copper-tungsten electrode;
Speed-sensitive switch, for applying pulse power voltage.
Preferably, speed-sensitive switch is transistor.
The embodiment of the present invention also provides a kind of electric discharge processing circuit, comprising: dc source, current-limiting resistance, speed-sensitive switch, electrode, the first switch, second switch and lc circuit;
Lc circuit comprises: electric capacity and diode between the negative pole of inductance, an end that is connected on inductance and dc source; Electric capacity and diodes in parallel, the negative electrode of diode is connected with inductance, and the anode of diode is connected with the negative pole of dc source;
The negative pole of dc source is connected with workpiece to be processed;
The positive pole of dc source is series limiting resistor, speed-sensitive switch and electrode successively; The other end of inductance is connected between speed-sensitive switch and electrode by the first switch;
Second switch and inductance in parallel;
The first switch, be the conducting while being superhard alloy of copper electrode and workpiece for electrode, and electrode is that copper electrode and workpiece disconnect while being common alloy;
Second switch for being that superhard alloy and electrode disconnect while being copper electrode at workpiece, is the conducting while being copper-tungsten electrode of superhard alloy and electrode at workpiece;
Speed-sensitive switch, for applying pulse power voltage.
Preferably, speed-sensitive switch is transistor.
The invention has the beneficial effects as follows:
The present invention by increasing lc circuit in the electric discharge processing circuit, utilize inductance slowly to discharge, make the electric current on copper electrode slowly increase, changed the discharge current waveform of copper electrode, and the current value on its copper electrode is that inductive current adds and flows through transistorized electric current, therefore, be greater than the electric current that directly by transistor, flows to copper electrode, thereby improved the electric discharge working (machining) efficiency, reduced loss.
The accompanying drawing explanation
Fig. 1 is the electric discharge processing circuit structure chart in the embodiment of the present invention 1;
Fig. 2 is inductive current oscillogram in the present invention;
Fig. 3 is voltage across poles and electrode current oscillogram in the present invention;
Fig. 4 is the electric discharge processing circuit structure chart in the embodiment of the present invention 4;
Fig. 5 is the electric discharge processing circuit structure chart in the embodiment of the present invention 3;
Fig. 6 is the electric discharge processing circuit structure chart in the embodiment of the present invention 4.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
At first the noun occurred in the present invention is made an explanation:
Superhard alloy: common are wolfram steel, titanium alloy etc.
Common alloy: such as common iron material, steel, various mould steel etc.
The embodiment of the present invention 1 provides a kind of electric discharge processing circuit.Referring to Fig. 1, this circuit comprises: dc source 11, current-limiting resistance 12, speed-sensitive switch 13, copper electrode 14 and lc circuit 15;
Lc circuit comprises: electric capacity 152 and diode 153 between the negative pole of inductance 151, an end that is connected on inductance and dc source; Electric capacity 152 is in parallel with diode 153, and the negative electrode of diode 153 is connected with inductance 151, and the anode 153 of diode is connected with the negative pole of dc source 11.
The negative pole of dc source 11 is connected with superhard alloy workpiece 16 to be processed.
The positive pole of dc source is series limiting resistor 12, speed-sensitive switch 13 and copper electrode 14 successively; The other end of inductance 151 is connected between speed-sensitive switch 13 and copper electrode 14.
Speed-sensitive switch 13 for applying pulse power voltage between copper electrode 14 and superhard alloy workpiece 16.
During concrete operations, at first the conducting speed-sensitive switch 13, make copper electrode 14 reach the striking state.At inductance 151 and the two ends of electric capacity 152, a striking voltage has been arranged.Now the voltage U 0 at power supply 11 two ends gives electric capacity 152 chargings by inductance 151, because the electric current I 2 of inductance 151 can not more become, the voltage U c of electric capacity 152 can not more become, thus the electric current I 2 on inductance 151 to negative sense, slowly increase, when capacitance voltage Uc size reaches U0, it is maximum that inductive current I2 also reaches thereupon, because inductive current I2 can not suddenly change, continue to electric capacity 152 chargings, the negative current I2 of inductance 151 reduces, until electric current becomes 0, now capacitance voltage reaches maximum Uc > U0.When the speed-sensitive switch conducting, interelectrode voltage U 1 is because inductance 151 and electric capacity 512 affect, and voltage waveform presents inverted U to be changed.
The variation of inductive current I2 and inter-electrode voltage as shown in Figure 2.
When copper electrode 14 slowly arrives certain distance near workpiece 16, its by the striking status transition to discharge condition, now the voltage U c at lc circuit two ends is much larger than the discharge voltage U1 between electrode, electric capacity 152 is by inductance 151 electric discharges, discharge process is: the beginning electric current is I2=0, I3=I1=(U0-U1)/R, the value that R is current-limiting resistance 12 herein, I3 is interelectrode electric current.Capacitance voltage is Uc, inductive current I2 can not suddenly change, capacitance voltage can not suddenly change, carrying out along with electric discharge, inductive current I2 increases, the electric capacity electric weight reduces, voltage drop, when capacitance voltage is reduced between electrode discharge voltage U1, it is maximum that inductive current I2 reaches, the stack I3=I2+I1 that interelectrode electric current I 3 is inductive current I2 and resistive layer electric current I 1, inductive current I2 starts to reduce subsequently, continuation is to capacitor discharge, until inductive current I2 becomes 0, because also there is diode at the electric capacity two ends, be designated as the forward conduction voltage of diode so the voltage at electric capacity two ends is minimum for-Ud(Ud), in discharge process, when inductive current I2 is 0, have-Ud
uc
u1, then U1 gives electric capacity 152 chargings by inductance 151 again, and electric current is negative.Fig. 3 shows the waveform of electrode current I3 in said process and voltage across poles U1.
After having discharged, speed-sensitive switch disconnects, and copper electrode 14 enters dormant state.It should be noted that, the periodic conducting of speed-sensitive switch 13, disconnection, so that pulse power voltage to be provided, its cycle can be set according to specific needs.
What above-mentioned speed-sensitive switch was concrete can be transistor.
Through measuring, the loss of above-mentioned electric discharge processing circuit when the processing superhard alloy can be controlled at 20% left and right.
Visible, the present invention, by increasing lc circuit and diode, makes the electric current between copper electrode slowly increase, the high loss of having avoided electric current moment increase to bring, and the electric current between copper electrode is greater than and directly passes through transistorized electric current, therefore, has improved the electric discharge working (machining) efficiency.
The embodiment of the present invention 2 provides a kind of electric discharge processing circuit.As shown in Figure 3, this circuit comprises: dc source 21, current-limiting resistance 22, speed-sensitive switch 23, copper electrode 24, the first switch 27 and lc circuit 25;
The negative pole of dc source 21 is connected with workpiece to be processed 26.
The positive pole of dc source 21 is series limiting resistor 22, speed-sensitive switch 23 and copper electrode 24 successively; The other end of inductance 251 is connected between speed-sensitive switch 23 and copper electrode 24 by the first switch 27.
Above-mentioned electric discharge processing circuit can be used for the electric discharge processing of superhard alloy or common alloy.
Concrete, when workpiece to be processed 26 is superhard alloy, by the first switch 27 conductings.The course of work of electric discharge processing circuit as described in example 1 above.
When workpiece to be processed 26 is common alloy, the first switch 27 is disconnected.
Wherein, speed-sensitive switch 23 is for providing pulse power voltage.This speed-sensitive switch is specifically as follows transistor.
By above-mentioned electric discharge processing circuit, can be according to the difference of workpiece to be processed, conducting or disconnect the first switch, with by lc circuit for or be not used in processing work.
The embodiment of the present invention 3 also provides a kind of electric discharge processing circuit.As shown in Figure 4, this circuit comprises: dc source 31, current-limiting resistance 32, speed-sensitive switch 33, electrode 34, second switch 37 and lc circuit 35.
The negative pole of dc source 31 is connected with superhard alloy workpiece 36 to be processed.
The positive pole of dc source 31 is series limiting resistor 32, speed-sensitive switch 33 and electrode 34 successively.The other end of inductance 351 is connected between speed-sensitive switch 33 and electrode 34.Second switch 37 is in parallel with inductance 351.
While applying above-mentioned electric discharge processing circuit processing superhard alloy workpiece, both can adopt copper electrode also can adopt copper tungsten motor.
When adopting copper electrode, second switch 37 needs to disconnect, and lc circuit integral body is added in the electric discharge processing circuit, its operation principle as described in example 1 above.When adopting copper-tungsten electrode, conducting second switch 37, be now noninductive pure capacitor charge and discharge circuit machining state, and the control mode of instantaneous large-current and short pulse duration directly is provided.Electrode current I3=I2+I1, voltage waveform also changes, and can be applied to the superalloy electric discharge processing of different hardness materials.
The embodiment of the present invention 4 also provides a kind of electric discharge processing circuit, and referring to Fig. 5, this circuit comprises: dc source 41, current-limiting resistance 42, speed-sensitive switch 43, electrode 44, the first switch 471, second switch 472 and lc circuit 45.
Lc circuit 45 comprises: electric capacity 452 and diode 453 between the negative pole of inductance 451, an end that is connected on inductance 451 and dc source 41.Electric capacity 451 is in parallel with diode 453, and the negative electrode of diode 453 is connected with inductance 451, and the anode of diode 453 is connected with the negative pole of dc source 41.
The negative pole of dc source 41 is connected with workpiece to be processed 46.
The positive pole of dc source 41 is series limiting resistor 42, speed-sensitive switch 43 and electrode 44 successively.The other end of inductance 451 is connected between speed-sensitive switch 43 and electrode 44 by the first switch 471.
When adopting the workpiece of copper electrode processing superhard alloy, need conducting the first switch 471, now second switch 472 disconnects.When adopting copper electrode to process common alloy, need to disconnect the first switch 471.
When adopting the workpiece of copper-tungsten electrode processing superhard alloy, need conducting the first switch 471 and second switch 472.
Above specific embodiment, purpose of the present invention, technical scheme and beneficial effect are further described, institute it should be noted, these are only a specific embodiment of the present invention, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (9)
1. an electric discharge processing circuit, is characterized in that, described circuit comprises: dc source, current-limiting resistance, speed-sensitive switch, copper electrode and lc circuit;
Described lc circuit comprises: electric capacity and diode between the negative pole of inductance, an end that is connected on described inductance and described dc source; Described electric capacity and described diodes in parallel, the negative electrode of described diode is connected with described inductance, and the anode of described diode is connected with the negative pole of described dc source;
The negative pole of described dc source is connected with superhard alloy workpiece to be processed;
The positive pole of described dc source connect successively described current-limiting resistance, described speed-sensitive switch and described copper electrode; The other end of described inductance is connected between described speed-sensitive switch and described copper electrode;
Described speed-sensitive switch is for applying pulse power voltage.
2. electric discharge processing circuit as claimed in claim 1, is characterized in that, described speed-sensitive switch is transistor.
3. electric discharge processing circuit as claimed in claim 1 or 2, is characterized in that, the loss of described circuit is 20%.
4. an electric discharge processing circuit, is characterized in that, described circuit comprises: dc source, current-limiting resistance, speed-sensitive switch, copper electrode, the first switch and lc circuit;
Described lc circuit comprises: electric capacity and diode between the negative pole of inductance, an end that is connected on described inductance and described dc source; Described electric capacity and described diodes in parallel, the negative electrode of described diode is connected with described inductance, and the anode of described diode is connected with the negative pole of described dc source;
The negative pole of described dc source is connected with workpiece to be processed;
The positive pole of described dc source connect successively described current-limiting resistance, described speed-sensitive switch and described copper electrode; The other end of described inductance is connected between described speed-sensitive switch and described copper electrode by described the first switch;
Described the first switch is for conducting when described workpiece is superhard alloy;
Described the first switch for disconnecting when described workpiece is common alloy;
Described speed-sensitive switch, for applying pulse power voltage.
5. electric discharge processing circuit as claimed in claim 4, is characterized in that, described speed-sensitive switch is transistor.
6. an electric discharge processing circuit, is characterized in that, described circuit comprises: dc source, current-limiting resistance, speed-sensitive switch, electrode, second switch and lc circuit;
Described lc circuit comprises: electric capacity and diode between the negative pole of inductance, an end that is connected on described inductance and described dc source; Described electric capacity and described diodes in parallel, the negative electrode of described diode is connected with described inductance, and the anode of described diode is connected with the negative pole of described dc source;
The negative pole of described dc source is connected with superhard alloy workpiece to be processed;
The positive pole of described dc source connect successively described current-limiting resistance, described speed-sensitive switch and described electrode; The other end of described inductance is connected between described speed-sensitive switch and described electrode;
Described second switch and described inductance in parallel;
Described second switch, for disconnecting when described electrode is copper electrode, conducting when described electrode is copper-tungsten electrode;
Described speed-sensitive switch, for applying pulse power voltage.
7. electric discharge processing circuit as claimed in claim 5, is characterized in that, described speed-sensitive switch is transistor.
8. an electric discharge processing circuit, is characterized in that, described circuit comprises: dc source, current-limiting resistance, speed-sensitive switch, electrode, the first switch, second switch and lc circuit;
Described lc circuit comprises: electric capacity and diode between the negative pole of inductance, an end that is connected on described inductance and described dc source; Described electric capacity and described diodes in parallel, the negative electrode of described diode is connected with described inductance, and the anode of described diode is connected with the negative pole of described dc source;
The negative pole of described dc source is connected with workpiece to be processed;
The positive pole of described dc source connect successively described current-limiting resistance, described speed-sensitive switch and described electrode; The other end of described inductance is connected between described speed-sensitive switch and described electrode by described the first switch;
Described second switch and described inductance in parallel;
Described the first switch, be the conducting while being superhard alloy of copper electrode and described workpiece for described electrode, and described electrode is that copper electrode and described workpiece disconnect while being common alloy;
Described second switch for being that superhard alloy and described electrode disconnect while being copper electrode at described workpiece, is the conducting while being copper-tungsten electrode of superhard alloy and described electrode at described workpiece;
Described speed-sensitive switch, for applying pulse power voltage.
9. electric discharge processing circuit as claimed in claim 8, is characterized in that, described speed-sensitive switch is transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446904.2A CN103464844B (en) | 2013-09-26 | 2013-09-26 | A kind of electric discharge processing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310446904.2A CN103464844B (en) | 2013-09-26 | 2013-09-26 | A kind of electric discharge processing circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103464844A true CN103464844A (en) | 2013-12-25 |
| CN103464844B CN103464844B (en) | 2015-07-29 |
Family
ID=49790008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310446904.2A Active CN103464844B (en) | 2013-09-26 | 2013-09-26 | A kind of electric discharge processing circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103464844B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364231A (en) * | 2014-08-20 | 2016-03-02 | 阿杰·查米莱斯股份有限公司 | Method and impulse form device for spark erosion machining |
| CN106513878A (en) * | 2016-12-07 | 2017-03-22 | 上海中轩汽车零部件有限公司 | Practical power supply for electric discharge machining |
| CN108422055A (en) * | 2017-02-13 | 2018-08-21 | 北京机床所精密机电有限公司 | A kind of waveform controlling method of spark pulse power and the electric power outputting current |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0027040A1 (en) * | 1979-10-04 | 1981-04-15 | Fanuc Ltd. | A wire-cut electric-discharge machine and a power source for such a machine |
| JPH11333632A (en) * | 1998-05-25 | 1999-12-07 | Mitsubishi Electric Corp | Electrical discharging device |
| CN2353475Y (en) * | 1998-11-26 | 1999-12-15 | 山东工业大学 | Impulse power-supply for spark processing |
| US6222149B1 (en) * | 1998-06-10 | 2001-04-24 | Sodick Co., Ltd. | Power supply device for electric discharge machining apparatus |
| CN1663723A (en) * | 2004-03-04 | 2005-09-07 | 发那科株式会社 | Power supply device for electric discharge machining |
| CN102143821A (en) * | 2008-09-02 | 2011-08-03 | 三菱电机株式会社 | Power supply device for electric discharge machine |
| CN203556972U (en) * | 2013-09-26 | 2014-04-23 | 苏州群伦精密机电工业有限公司 | Discharge processing circuit |
-
2013
- 2013-09-26 CN CN201310446904.2A patent/CN103464844B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0027040A1 (en) * | 1979-10-04 | 1981-04-15 | Fanuc Ltd. | A wire-cut electric-discharge machine and a power source for such a machine |
| JPH11333632A (en) * | 1998-05-25 | 1999-12-07 | Mitsubishi Electric Corp | Electrical discharging device |
| US6222149B1 (en) * | 1998-06-10 | 2001-04-24 | Sodick Co., Ltd. | Power supply device for electric discharge machining apparatus |
| CN2353475Y (en) * | 1998-11-26 | 1999-12-15 | 山东工业大学 | Impulse power-supply for spark processing |
| CN1663723A (en) * | 2004-03-04 | 2005-09-07 | 发那科株式会社 | Power supply device for electric discharge machining |
| CN102143821A (en) * | 2008-09-02 | 2011-08-03 | 三菱电机株式会社 | Power supply device for electric discharge machine |
| CN203556972U (en) * | 2013-09-26 | 2014-04-23 | 苏州群伦精密机电工业有限公司 | Discharge processing circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105364231A (en) * | 2014-08-20 | 2016-03-02 | 阿杰·查米莱斯股份有限公司 | Method and impulse form device for spark erosion machining |
| CN105364231B (en) * | 2014-08-20 | 2020-02-14 | 阿杰·查米莱斯股份有限公司 | Method and pulse forming apparatus for electric discharge machining |
| CN106513878A (en) * | 2016-12-07 | 2017-03-22 | 上海中轩汽车零部件有限公司 | Practical power supply for electric discharge machining |
| CN108422055A (en) * | 2017-02-13 | 2018-08-21 | 北京机床所精密机电有限公司 | A kind of waveform controlling method of spark pulse power and the electric power outputting current |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103464844B (en) | 2015-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201201083Y (en) | Duplicate supply mode pulse power source for numerical control electrospark wire-electrode cutting | |
| CN101318242A (en) | Numerical control double-power mode multifunctional impulsing power source for electrospark wire-electrode cutting processing | |
| CN103464844B (en) | A kind of electric discharge processing circuit | |
| CN102412753B (en) | High-voltage and high-power repetitive pulse power supply | |
| CN203556972U (en) | Discharge processing circuit | |
| CN101318240A (en) | Numerical control sopulse power source for wire-electrode cutting processing | |
| CN207603470U (en) | A kind of inrush current suppression circuit | |
| CN201235432Y (en) | Numerical control current pulse power source for electrospark wire-electrode cutting machining | |
| CN109967807A (en) | A kind of Wire EDM multi-channel discharge highly-efficient processing structure and its method | |
| CN207806817U (en) | Spark pulse power circuit | |
| CN107332459B (en) | Nanosecond pulse power supply system for wire-cut electric discharge machining and control method | |
| CN100528441C (en) | Electric spark machine | |
| CN203918180U (en) | A kind of transfer starting the arc control circuit of electric welding machine | |
| CN203398843U (en) | M-BUS bus equipment based auxiliary power supply | |
| CN110460232A (en) | A kind of DC power supply with isolation module | |
| CN100429862C (en) | Fast charging device for superconducting coil current regulating switch | |
| CN110802290A (en) | Electric spark wire cutting unobstructed pulse power supply | |
| CN204651912U (en) | A kind of control circuit of high-speed circuit breaker | |
| CN104002017A (en) | Efficient electric spark cladding machine | |
| CN207573093U (en) | A kind of NFC antenna electricity getting device | |
| CN108422055B (en) | A kind of waveform controlling method of spark pulse power and the electric power outputting current | |
| CN101658964A (en) | Discharge circuit of electrosparking power supply | |
| CN201669482U (en) | Pulse discharge circuit for the wire cutting machine | |
| CN204441850U (en) | A kind of stagnant ring current foldback circuit based on GJB181 surge suppressor | |
| CN105743351B (en) | Switching power supply circuit and method for prolonging power-down retention time |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201119 Address after: 215000 route 499, Xu Town, Suzhou, Jiangsu, Wuzhong District Patentee after: CREATOR INDUSTRY (SUZHOU) Co.,Ltd. Address before: 215011 No. 92 Jin Shan Road, New District, Jiangsu, Suzhou Patentee before: SUZHOU QUNLUN PRECISION ELECTRIC-MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right |