CN201175797Y - High-low pressure composite pulse power source for processing small holes by electrical spark method - Google Patents
High-low pressure composite pulse power source for processing small holes by electrical spark method Download PDFInfo
- Publication number
- CN201175797Y CN201175797Y CNU2008201072276U CN200820107227U CN201175797Y CN 201175797 Y CN201175797 Y CN 201175797Y CN U2008201072276 U CNU2008201072276 U CN U2008201072276U CN 200820107227 U CN200820107227 U CN 200820107227U CN 201175797 Y CN201175797 Y CN 201175797Y
- Authority
- CN
- China
- Prior art keywords
- diode
- power switch
- power
- spark
- source
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The utility model discloses a high-low voltage composite pulse power supply for small holes by electrical discharge machining, which is adaptable to numerical controlled wire electrical discharge machining. The pulse power supply comprises a master oscillating circuit, a drive circuit, a detection circuit, an abnormal discharge processing module during breakdown cycle, an abnormal discharge processing module in large current processing cycle, a high-voltage DC power supply, a medium-voltage DC current and a power amplification circuit. The abnormal discharge processing module during breakdown cycle and the abnormal discharge processing module in large current processing cycle are disposed between the master oscillating circuit and the detection circuit. The detection circuit is used for detecting the gap discharging condition on-line in real time, takes a no-load periodic signal at the breakdown time as a waiting signal of the master oscillating circuit, and takes a large current processing periodic signal as a batch-type inhibitory periodic trigger signal. Switching of Multifunctional processing circuits can be realized through controlling the on-off time of a first power switch (T<1>), and the working mode of two powers can be realized on one wire cutting machine.
Description
Technical field
The utility model relates to a kind of high-low pressure composite pulse power supply that is applicable to electric spark high speed aperture machining tool.
Background technology
The existing high speed aperture machining tool pulse power all has current-limiting resistance, produces a large amount of heat energy in the processing and has reduced working (machining) efficiency, has increased the volume of the pulse power.Traditional pulse power rising edge is steep, and export license is big, the processing cost height.When the aspect ratio of machining hole is big, because discharge galvanic corrosion product is difficult to discharge, the export license height, working (machining) efficiency is low.
Disclosed in Granted publication CN1325215C " circulation stack chopped mode energy saving spark machining pulse power supply ", this pulse power is made up of main vibration circuit, drive circuit, current detection circuit, dc source and power amplification circuit.
Conventional power source has the current-limiting resistance design, and caloric value is big and utilization rate of electrical is low; In addition, pulse power volume is big, the cost height.Detect the loop and adopt the average voltage sampling method, the reflection machining state has certain lag time, and processing electric current is a square wave, and rising edge is steep, and the hollow edged electrode loss is big, and when big electric current roughing, to long-time short circuit, arcing easily increases man-hour.
Summary of the invention
The purpose of this utility model provides a kind of electric spark small hole processing high-low pressure composite pulse power supply, and this pulse power adopts high pressure Compound Machining pattern, and high pressure is used for the disruptive discharge gap, and the big electric current of middle pressure is processed.Increase discharging gap and help chip removal, export license is little.Adopt to puncture the method for waiting for, realize homenergic processing, efficiently electric spark High-speed machining aperture.The improper discharge condition signal of the big electric current of middle pressure in the process-cycle suppressed the triggering signal in cycle as the pulse interval formula, avoided the electric energy loss of Short-Circuit High Current, improved utilization rate of electrical.
A kind of electric spark small hole processing high-low pressure composite pulse power supply of the present utility model, this pulse power includes main vibration circuit, drives the loop, detects loop, dc source and power amplification loop, it is characterized in that: also include improper spark processing module in the puncture cycle, big improper spark processing module of electric current process-cycle, improper spark processing module, big improper spark processing module of electric current process-cycle are arranged between main vibration circuit and the detection loop in the puncture cycle; Described dc source includes high-voltage DC power supply, medium voltage DC stream;
Described detection loop is used for real-time online and detects discharging gap zero load, short circuit, three kinds of discharge conditions of spark, and in the puncture cycle and the big unloaded duration T of electric current in the process-cycle
d(unloaded cycle), the duration of short-circuit T
s, spark duration T
e
Improper spark processing module is used for the unloaded period T that will receive in the described puncture cycle
dWith setting T idle time
D0Compare, if T
d＞T
D0, then export waiting signal T
WTo the main loop that shakes;
Described improper spark processing module of big electric current process-cycle is used for the duration of short-circuit T of big electric current in the process-cycle that will receive
sWith setting short circuit duration T
S0Compare, if T
s＞T
S0, then export batch (-type) and suppress cycle triggering signal T
RTo the main loop that shakes;
Described medium voltage DC source is used for the T in the power amplification loop
2, T
3Conducting, T
1The big electric current spark discharge processing of turn-offing; Medium voltage DC source output 80V～90V.
K in the described high-voltage DC power supply
2E when closed
1Be output as high-voltage DC power supply, provide breakdown channel for pressing big electric current spark discharge in follow-up; High-voltage DC power supply output 100V～150V.
Conducting, switch-off power switching tube are carried out according to the driving signal that drives loop output in described power amplification loop, thereby realize the switching of multi-functional processing loop, and the working method that realizes two kinds of power supplys on a little hole machine tool of processing.
The described master loop that shakes is used for exporting control signal affacts the power amplification loop after driving drive circuit power switch pipe.
Description of drawings
Fig. 1 is the structured flowchart of the utility model spark machined aperture pulse power.
Fig. 2 is the circuit theory diagrams of the utility model spark machined aperture pulse power.
Fig. 3 is the circuit theory diagrams of the another kind of spark machined aperture of the utility model pulse power.
Fig. 4 is a discharging gap homenergic oscillogram.
Fig. 5 is that the waveform schematic diagram is cut off in short circuit.
Fig. 6 A is the delta current oscillogram.
Fig. 6 B is the inverted T-shaped current waveform figure.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
The utility model be a kind of electric spark high speed aperture machining tool that is applicable at the pulse power used of processing aperture, this pulse power by main vibration circuit, drive the loop, detect the loop, (referring to shown in Figure 1) formed in improper spark processing module, big improper spark processing module of electric current process-cycle, medium voltage DC source, high-voltage DC power supply and power amplification loop in the puncture cycle.Improper spark processing module, big improper spark processing module of electric current process-cycle are arranged between main vibration circuit and the detection loop in the puncture cycle.In the utility model, main vibration circuit, driving loop, detection loop are the custom circuit structures of existing electric spark high speed aperture machining tool.
Described detection loop is used for real-time online and detects discharging gap zero load, short circuit, three kinds of discharge conditions of spark, and in the puncture cycle and the big unloaded duration T of electric current in the process-cycle
d(unloaded cycle), the duration of short-circuit T
s, spark duration T
e
Improper spark processing module is used for the unloaded period T that will receive in the described puncture cycle
dWith setting T idle time
D0Compare, if T
d＞T
D0, then export waiting signal T
WTo the main loop that shakes;
Described improper spark processing module of big electric current process-cycle is used for the duration of short-circuit T of big electric current in the process-cycle that will receive
sWith setting short circuit duration T
S0Compare, if T
s＞T
S0, then export batch (-type) and suppress cycle triggering signal T
RTo the main loop that shakes;
Described medium voltage DC source is used for the T in the power amplification loop
2, T
3Conducting, T
1The big electric current spark discharge processing of turn-offing; Medium voltage DC source output 80V～90V.
K in the described high-voltage DC power supply
2E when closed
1Be output as high-voltage DC power supply, provide breakdown channel for pressing big electric current spark discharge in follow-up; High-voltage DC power supply output 100V～150V.
Conducting, switch-off power switching tube are carried out according to the driving signal that drives loop output in described power amplification loop, thereby realize the switching of multi-functional processing loop, and the working method that realizes two kinds of power supplys on an electric spark high speed aperture machining tool.
The described master loop that shakes is used for exporting control signal affacts the power amplification loop after driving drive circuit power switch pipe.
In the utility model, by controlling the first power switch T
1Open, the break time, the processing electric current pulsewidth of big electric current spark discharge is equated, realize homenergic processing; By control A.C. contactor K
1Switching realize thick, fine finishining.
In the utility model, the power switch pipe in the power amplification loop is chosen the 1MBH60D power tube.Circuit structure referring to power amplification loop shown in Figure 2 is the second dc source E
2Positive pole be connected with the second power switch T
2Colelctor electrode, the 4th diode D
4Negative electrode, the second dc source E
2Negative pole be connected with the first dc source E
1Negative pole, the 5th diode D
5Anode, the second diode D
2Anode, the 3rd power switch T
3Emitter stage; The first dc source E
1The positive pole and the first power switch T
1Colelctor electrode connect the first power switch T
1Emitter stage and the 5th diode D
5Negative electrode connect and the first power switch T
1The emitter stage and second inductance L
22 ends connect; Second inductance L
21 end and the first diode D
1Anode connect the first diode D
1The negative electrode and first inductance L
11 end connect; The second power switch T
2Emitter stage and the 3rd diode D
3Anode connect the 3rd diode D
3The negative electrode and the second diode D
2Negative electrode connect and the 3rd diode D
3The negative electrode and first inductance L
11 end connect; First inductance L
12 ends be connected with 1 end of A.C. contactor KM, 2 ends of A.C. contactor KM, 4 ends are connected on the copper pipe electrode, 3 ends of A.C. contactor KM are connected first inductance L
11 end on; The 3rd power switch T
3Colelctor electrode and the 4th diode D
4Anode connect, workpiece is connected the 3rd power switch T
3Colelctor electrode on.
In the utility model,,, also can adopt resistance R to substitute second inductance L at the puncture control loop because inductance and resistance all can be realized the effect of dividing potential drop referring to another kind of power amplification loop shown in Figure 3
2The second dc source E
2Positive pole be connected with the second power switch T
2Colelctor electrode, the 4th diode D
4Negative electrode, the second dc source E
2Negative pole be connected with the first dc source E
1Negative pole, the 5th diode D
5Anode, the second diode D
2Anode, the 3rd power switch T
3Emitter stage; The first dc source E
1The positive pole and the first power switch T
1Colelctor electrode connect the first power switch T
1Emitter stage and the 5th diode D
5Negative electrode connect and the first power switch T
1Emitter stage be connected with 2 ends of resistance R; 1 end of resistance R and the first diode D
1Anode connect the first diode D
1The negative electrode and first inductance L
11 end connect; The second power switch T
2Emitter stage and the 3rd diode D
3Anode connect the 3rd diode D
3The negative electrode and the second diode D
2Negative electrode connect and the 3rd diode D
3The negative electrode and first inductance L
11 end connect; First inductance L
12 ends be connected with 1 end of A.C. contactor KM, 2 ends of A.C. contactor KM, 4 ends are connected on the copper pipe electrode, 3 ends of A.C. contactor KM are connected first inductance L
11 end on; The 3rd power switch T
3Colelctor electrode and the 4th diode D
4Anode connect, workpiece is connected the 3rd power switch T
3Colelctor electrode on.
In the utility model, the second power switch T
2, the 3rd power switch T
3, the second diode D
2, the 3rd diode D
3, the 4th diode D
4, first inductance L
1Constitute bridge-type power amplification loop with K switch M.
In the utility model, the first dc source E
1Be the output high-voltage DC power supply.
In the utility model, the second dc source E
2Be output medium voltage DC source.
In the utility model, the first power switch T
1, second inductance L
2, the 5th diode D
5, the first diode D
1Constitute high-voltage breakdown control circuit (referring to shown in Figure 2).The first power switch T
1, resistance R, the 5th diode D
5, the first diode D
1Constitute high-voltage breakdown control circuit (referring to shown in Figure 3).This puncture control circuit can be realized high-voltage breakdown, middle banking fire flower discharging function in the discharge processing of online cutting, for follow-up spark discharge provides bigger discharge channel, is beneficial to chip removal, improves working (machining) efficiency.
In the utility model, first inductance L
1With A.C. contactor K
1Form thick, fine finishining switching circuit.1 end of A.C. contactor KM and 2 end closures, 3 ends and 4 ends disconnect realizes that fine finishining, 3 ends of A.C. contactor KM and 4 end closures, 1 end and 2 ends disconnect realization roughing.
Innovative point of the present utility model:
(1) high pressure Compound Machining
The conducting of T1, T2 elder generation, T2, T3 conducting, T1 ends, and realizes the high pressure Compound Machining.T
1, T
3Conducting, T
2Turn-off, the little electric current of advanced horizontal high voltage punctures T
1Turn-off.T
2, T
3Banking fire flower discharge in the big electric current is carried out in conducting, realizes high-voltage breakdown, the big electric current spark discharge processing of middle pressure.
(2) function is cut off in the short circuit time-delay
Puncture in the delay cycle, during as the length road, T
1The batch (-type) conducting realizes short circuit time-delay cut-out function.Referring to shown in Figure 5, work as T
2Turn-off T
1, T
3Conducting when breakdown channel, long-time short-circuit condition can occur, detects short circuit duration t when detecting the loop
S1, after the long-time non-spark discharge treatment loop of process compares processing, confirm as length road time t
S2, the triggering signal that batch (-type) suppresses the cycle then takes place, shake the loop with T by main
1, T
3Turn-off, the power amplification loop does not have the direct current input, after puncture t idle time again
D1, loop to be detected detects the sparking voltage time-delay by (B point among the figure, the B point is the time-delay end signal), and the big electric current of spark this moment is processed, and obtains the back spark time t of one-period
E2, guarantee that like this hollow edged electrode does not have for a long time big electric current and passes through, avoided the possibility of electrode arcing, also saved man-hour, improved efficient.Among the figure, t
E1=t
E2, promptly two interior spark times of pulse width period equate; T
E1=T
E2, promptly in front and back or follow-up spark add the electric current pulsewidth in man-hour and equate; T
S1Expression punctures the short circuit duration in loop, T
S2Expression punctures the length road time in loop.
(3) press the big short circuit current in the processing to cut off function in
Big electric current is in the process-cycle, as length road, T
2The batch (-type) conducting realizes big short circuit current cut-out function.Work as T
2, T
3During conducting,, utilize and detect the loop, close T the triggering signal of detected short-circuit signal as the batch (-type) inhibition cycle in the main loop that shakes owing to be the spark discharge state of big electric current at this moment
1, T
2, T
3, the power amplification loop does not have direct current input, the arcing that the short circuit when avoiding big electric current causes for a long time.Can also be with T
2Close a unit interval (μ s) earlier, through T after two unit interval
2, T
3Conducting detects again, as detects still short circuit, turn-offs T once more
2, conducting T once more
2, T
3Until there not being the length road to take place.
(4) homenergic processing
(1) T
1, T
3Conducting, T
2End
At the first power switch T
1With the 3rd power switch T
3Conducting simultaneously, the second power switch T
2When ending, dc source E is by second inductance L
2((35V～55V), this breakdown voltage provides breakdown channel for follow-up big electric current spark discharge to the breakdown voltage of 2A～8A) for the gap provides little electric current.
(2) T
2, T
3Conducting, T
1End
As the second power switch T
2With the 3rd power switch T
3Conducting simultaneously, the first power switch T
1By the time, dc source E provides the big electric current (machining voltage of 5A～150A) (60V～70V), make gap flashing discharge processing to the gap.
Referring to shown in Figure 4, under the homenergic machining state, will detect the time delayed signal of the airborne signals in loop, then as the first power switch T as the main loop that shakes
1, the 3rd power switch T
3Carry out little electric current high-voltage breakdown during conducting, in breakdown time, detect the loop and detect unloaded periodic signal; This zero load periodic signal is improper spark processing module output waiting signal in the puncture cycle, and this moment, the main loop that shakes was used for controlling the opening of power switch pipe, disconnected in power amplification loop.At the first power switch T
1, the 3rd power switch T
3Continue conducting, when the detection loop detects sparking voltage (B point among the figure, the B point is the time-delay end signal), time-delay ends, i.e. the first power switch T
1Turn-off the second power switch T
2, the 3rd power switch T
3Conducting; At the second power switch T
2, the 3rd power switch T
3Big electric current spark discharge is carried out in conducting, and little electric current punctures makes not have unloaded the appearance in the follow-up pulsewidth (B pulsewidth), continues spark discharge, because follow-up pulsewidth is not carried out delay process, the T of setting
2, T
3ON time is constant simultaneously, and the big electric current spark discharge time equates.Be t
I1=t
I2, realize that each discharge energy equates, the discharge pit is even, processes highly polished.t
I1The electric current pulsewidth of representing last waveform, t
I2The electric current pulsewidth of back one waveform.
(5) roughing under the discharge condition, fine finishining are switched
When 1 end, the 2 end closures of exchange contactor KM, 3 ends, 4 ends turn-off, and carry out the roughing pattern, because the electric current of inductance can not suddenly change, the electric current of discharging gap slowly rises, and suppresses the gap current peak value, helps carrying out the roughing of the roomy electric current of long pulse; When A.C. contactor 1 end, the shutoff of 2 ends, 3 ends, 4 end closures switch to the fine finishining pattern, because this pulse power does not have current-limiting resistance, the electric current rate of rise is big, can carry out the fine finishining of big current, narrow pulsewidth, realize that the discharge pit is little, the processed surface smoothness height.
(6) homenergic, etc. the cycle cooked mode switch:
Can be by the control second power switch T
1Cut-off, realize homenergic and the switching that waits the cycle cooked mode, adapt to different processing requests, in T1 processing, disconnect always, the processing of cycles such as realization, conducting in the puncture cycle in T1 processes realizes homenergic processing.When the big electric current roughing of big pulsewidth, switch to the homenergic cooked mode, improve working (machining) efficiency; When carrying out the little electric current fine finishining of narrow pulsewidth, when feeding is unstable, the cycle pattern such as switch to.
(7) the hollow edged electrode loss is little
Shown in Fig. 6 A, Fig. 6 B, by making T
2, T
3Alternate conduction and shutoff realize the triangular current waveform, and this current waveform rising edge is slow, and trailing edge is steep, can reduce the hollow edged electrode loss; By making T
1, T
3Elder generation's conducting, T
2, T
3Back conducting, end cycle are turn-offed simultaneously and are realized the inverted T-shaped current waveform, the little current preheating of elder generation, and the big electric current processing in back reduces the hollow edged electrode loss.
(8) capacity usage ratio height: because the pulse power does not have current-limiting resistance, the energy that electric current provides has all been supplied with discharging gap basically, has improved capacity usage ratio greatly.
Claims (6)
1, a kind of impulsing power source for spark pinhole processing, this pulse power includes main vibration circuit, drives the loop, detects loop, dc source and power amplification loop, it is characterized in that: also include improper spark processing module in the puncture cycle, big improper spark processing module of electric current process-cycle, improper spark processing module, big improper spark processing module of electric current process-cycle are arranged between main vibration circuit and the detection loop in the puncture cycle; Described dc source includes high-voltage DC power supply, medium voltage DC stream;
Described detection loop is used for real-time online and detects discharging gap zero load, short circuit, three kinds of discharge conditions of spark, and in the puncture cycle and the big unloaded duration T of electric current in the process-cycle
d, the duration of short-circuit T
s, spark duration T
e
Improper spark processing module is used for the unloaded period T that will receive in the described puncture cycle
dWith setting T idle time
D0Compare, if T
d＞T
D0, then export waiting signal T
WTo the main loop that shakes;
Described improper spark processing module of big electric current process-cycle is used for the duration of short-circuit T of big electric current in the process-cycle that will receive
sWith setting short circuit duration T
S0Compare, if T
s＞T
S0, then export batch (-type) and suppress cycle triggering signal T
RTo the main loop that shakes;
Described medium voltage DC source is used for the T in the power amplification loop
2, T
3Conducting, T
1The big electric current spark discharge processing of turn-offing; Medium voltage DC source output 80V～90V;
K in the described high-voltage DC power supply
2E when closed
1Be output as high-voltage DC power supply, provide breakdown channel for pressing big electric current spark discharge in follow-up; High-voltage DC power supply output 100V～150V;
Conducting, switch-off power switching tube are carried out according to the driving signal that drives loop output in described power amplification loop, thereby realize the switching of multi-functional processing loop, and the working method that realizes two kinds of power supplys on an electric spark high speed aperture machining tool;
The described master loop that shakes is used for exporting control signal affacts the power amplification loop after driving drive circuit power switch pipe.
2, impulsing power source for spark pinhole processing according to claim 1 is characterized in that: the circuit structure in power amplification loop is the second dc source (E
2) positive pole be connected with the second power switch (T
2) colelctor electrode, the 4th diode (D
4) negative electrode, the second dc source (E
2) negative pole be connected with the first dc source (E
1) negative pole, the 5th diode (D
5) anode, the second diode (D
2) anode, the 3rd power switch (T
3) emitter stage; First dc source (the E
1) the positive pole and the first power switch (T
1) colelctor electrode connect the first power switch (T
1) emitter stage and the 5th diode (D
5) negative electrode connect and the first power switch (T
1) the emitter stage and the second inductance (L
2) 2 ends connect; Second inductance (the L
2) 1 end and the first diode (D
1) anode connect the first diode (D
1) the negative electrode and first inductance L
11 end connect; Second power switch (the T
2) emitter stage and the 3rd diode (D
3) anode connect the 3rd diode (D
3) the negative electrode and the second diode D
2Negative electrode connect and the 3rd diode (D
3) the negative electrode and the first inductance (L
1) 1 end connect; First inductance (the L
1) 2 ends be connected with 1 end of A.C. contactor (KM), 2 ends of A.C. contactor (KM), 4 ends are connected on the copper pipe electrode, 3 ends of A.C. contactor (KM) are connected the first inductance (L
1) 1 end on; The 3rd power switch pipe (T
3) colelctor electrode and the 4th diode (D
4) anode connect, workpiece is connected the 3rd power switch pipe (T
3) colelctor electrode on.
3, impulsing power source for spark pinhole processing according to claim 1 is characterized in that: the circuit structure in power amplification loop is the second dc source (E
2) positive pole be connected with the second power switch (T
2) colelctor electrode, the 4th diode (D
4) negative electrode, the second dc source (E
2) negative pole be connected with the first dc source (E
1) negative pole, the 5th diode (D
5) anode, the second diode (D
2) anode, the 3rd power switch (T
3) emitter stage; First dc source (the E
1) the positive pole and the first power switch (T
1) colelctor electrode connect the first power switch (T
1) emitter stage and the 5th diode (D
5) negative electrode connect and the first power switch (T
1) emitter stage be connected with 2 ends of resistance R; 1 end of resistance R and the first diode (D
1) anode connect the first diode (D
1) the negative electrode and first inductance L
11 end connect; Second power switch (the T
2) emitter stage and the 3rd diode (D
3) anode connect the 3rd diode (D
3) the negative electrode and the second diode D
2Negative electrode connect and the 3rd diode (D
3) the negative electrode and the first inductance (L
1) 1 end connect; First inductance (the L
1) 2 ends be connected with 1 end of A.C. contactor (KM), 2 ends of A.C. contactor (KM), 4 ends are connected on the copper pipe electrode, 3 ends of A.C. contactor (KM) are connected the first inductance (L
1) 1 end on; The 3rd power switch (T
3) colelctor electrode and the 4th diode (D
4) anode connect, workpiece is connected the 3rd power switch (T
3) colelctor electrode on.
4, according to claim 2 or 3 described impulsing power source for spark pinhole processing, it is characterized in that: the second power switch (T
2), the 3rd power switch (T
3), the second diode (D
2), the 3rd diode (D
3), the 4th diode (D
4), the first inductance (L
1) and A.C. contactor (KM) formation bridge-type power amplification loop.
5, impulsing power source for spark pinhole processing according to claim 2 is characterized in that: the first power switch (T
1), the second inductance (L
2), the 5th diode (D
5), the first diode (D
1) formation puncture control circuit.
6, impulsing power source for spark pinhole processing according to claim 3 is characterized in that: the first power switch (T
1), resistance (R), the 5th diode (D
5), the first diode (D
1) formation puncture control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201072276U CN201175797Y (en) | 2008-04-08 | 2008-04-08 | High-low pressure composite pulse power source for processing small holes by electrical spark method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201072276U CN201175797Y (en) | 2008-04-08 | 2008-04-08 | High-low pressure composite pulse power source for processing small holes by electrical spark method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201175797Y true CN201175797Y (en) | 2009-01-07 |
Family
ID=40215813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201072276U Expired - Lifetime CN201175797Y (en) | 2008-04-08 | 2008-04-08 | High-low pressure composite pulse power source for processing small holes by electrical spark method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201175797Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318241B (en) * | 2008-04-08 | 2010-04-07 | 哈尔滨工业大学 | Impulsing power source for spark pinhole processing |
| CN106964853A (en) * | 2017-03-06 | 2017-07-21 | 浙江师范大学 | A kind of composite pulse power supply for electro-discharge machining |
| TWI616257B (en) * | 2011-01-28 | 2018-03-01 | Seibu Electric & Machinery Co Ltd | Processing method for cutting and unbroken working parts in wire electric discharge machining |
| CN108746892A (en) * | 2018-08-10 | 2018-11-06 | 大连交通大学 | A kind of composite pulse electrical discharge machining sprays quick-fried power supply, system and method |
| CN109702279A (en) * | 2019-03-01 | 2019-05-03 | 南京工程学院 | A kind of pulse power of small-sized electric discharge machining apparatus |
| CN110802290A (en) * | 2019-11-15 | 2020-02-18 | 南京航空航天大学 | Electric spark wire cutting unobstructed pulse power supply |
| CN113770464A (en) * | 2021-09-08 | 2021-12-10 | 厦门理工学院 | Multi-mode adjustment method based on multi-mode self-adaptive pulse power supply |
-
2008
- 2008-04-08 CN CNU2008201072276U patent/CN201175797Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101318241B (en) * | 2008-04-08 | 2010-04-07 | 哈尔滨工业大学 | Impulsing power source for spark pinhole processing |
| TWI616257B (en) * | 2011-01-28 | 2018-03-01 | Seibu Electric & Machinery Co Ltd | Processing method for cutting and unbroken working parts in wire electric discharge machining |
| CN106964853A (en) * | 2017-03-06 | 2017-07-21 | 浙江师范大学 | A kind of composite pulse power supply for electro-discharge machining |
| CN108746892A (en) * | 2018-08-10 | 2018-11-06 | 大连交通大学 | A kind of composite pulse electrical discharge machining sprays quick-fried power supply, system and method |
| CN108746892B (en) * | 2018-08-10 | 2024-02-09 | 大连交通大学 | Composite pulse electric spark machining spray explosion power supply, system and method |
| CN109702279A (en) * | 2019-03-01 | 2019-05-03 | 南京工程学院 | A kind of pulse power of small-sized electric discharge machining apparatus |
| CN110802290A (en) * | 2019-11-15 | 2020-02-18 | 南京航空航天大学 | Electric spark wire cutting unobstructed pulse power supply |
| CN113770464A (en) * | 2021-09-08 | 2021-12-10 | 厦门理工学院 | Multi-mode adjustment method based on multi-mode self-adaptive pulse power supply |
| CN113770464B (en) * | 2021-09-08 | 2022-07-05 | 厦门理工学院 | Multi-mode adjustment method based on multi-mode self-adaptive pulse power supply |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100577335C (en) | Numerical control double-power mode multifunctional impulsing power source for electrospark wire-electrode cutting processing | |
| CN201201083Y (en) | Duplicate supply mode pulse power source for numerical control electrospark wire-electrode cutting | |
| CN101318241B (en) | Impulsing power source for spark pinhole processing | |
| CN201175797Y (en) | High-low pressure composite pulse power source for processing small holes by electrical spark method | |
| CN101318240B (en) | Numerical control pulse power source for wire-electrode cutting processing | |
| CN102554374B (en) | Self-adjusting discharge machining energy-saving power supply device and method thereof | |
| CN102672308A (en) | Touch arc striking electric welding machine and electric welding touch arc striking control method | |
| CN201235432Y (en) | Numerical control current pulse power source for electrospark wire-electrode cutting machining | |
| CN201467083U (en) | Two-stage pulse-width-limited precise-discharge machining pulse power supply | |
| CN202752713U (en) | Electric spark machining device of small back-tapered hole | |
| CN101579761B (en) | Two-stage limited pulse width precision electrical discharge pulse power source | |
| JP3773696B2 (en) | Electric discharge machine power supply device | |
| CN109986154B (en) | Intelligent control pulse power supply system for multi-station blade electrolytic machining and control method | |
| CN202824897U (en) | Improved electrical process machine pulsed power supply | |
| CN103023044B (en) | Combination switch with intelligent zero-crossing switching function | |
| CN207026652U (en) | Electrical discharge machining pulse power and processing unit (plant) | |
| CN216565097U (en) | Nanosecond high-voltage pulse generator | |
| CN110977063B (en) | Modularized resistance-free energy-saving electric spark machining power supply | |
| CN111558752B (en) | Slow-speed wire-walking pulse power supply control method | |
| CN2353475Y (en) | Impulse power-supply for spark processing | |
| CN103990871B (en) | A kind of nanosecond width pulse power supply for spark machined | |
| CN202367332U (en) | Automatic power-off energy-saving controller for electric welding machine | |
| CN203371140U (en) | Intelligent control high frequency pulse power supply | |
| CN108340032B (en) | A kind of electric energy recycling Energy-saving Pulse Generator for EDM | |
| CN1259167C (en) | High-and low-voltage combining method and device for pulsive power supply used in electric processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090107 Effective date of abandoning: 20080408 |