CN100577335C - Numerical control double-power mode multifunctional impulsing power source for electrospark wire-electrode cutting processing - Google Patents
Numerical control double-power mode multifunctional impulsing power source for electrospark wire-electrode cutting processing Download PDFInfo
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- CN100577335C CN100577335C CN200810088928A CN200810088928A CN100577335C CN 100577335 C CN100577335 C CN 100577335C CN 200810088928 A CN200810088928 A CN 200810088928A CN 200810088928 A CN200810088928 A CN 200810088928A CN 100577335 C CN100577335 C CN 100577335C
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Abstract
The invention discloses multifunctional energy-saving pulse power supply with a dual power mode for the numerical control electrical discharge wire-cutting, which consists of a main vibration circuit, a driving circuit, a detection circuit, a long no-load treatment module, a long and short circuit treatment module, medium-voltage direct current power supply, high/low voltage direct current power supply and a power amplification circuit; wherein, the long no-load treatment module and the long and short circuit treatment module are arranged between the detection circuit and the main vibration circuit. The pulse power supply of the invention can realize the combined processing of high voltage and medium voltage as well as the medium voltage and the low voltage, and the high/low voltage in the combined processing is used for breaking down the discharge gaps and the medium voltage is used in the heavy current spark discharge processing; the signals of the non-normal spark discharge state in the medium-voltage heavy current processing cycle are adopted as the trigger signals of the intermittent inhibitive cycle of the pulse to cut the long-time short circuit, thus avoiding the wire burning; the non-normal spark discharge state in the breakdown cycle is adopted as pulse waiting signal to cause a channel to be completely broken down, thus realizing the equal energy processing and improving the processing efficiency; the function of switching the modes of rough processing and finish processing is provided to meet different processing requirements.
Description
Technical field
The present invention relates to a kind of be applicable to NC wirecut EDM machine, that have the dual power supply pattern, multifunctional pulse power supply.
Background technology
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.
In the existing Wire EDM pulse power current-limiting resistance is arranged mostly, most of energy that this current-limiting resistance makes power supply provide consumes with the heat energy form, causes capacity usage ratio lower.In addition, the pulse power can only carry out single cooked mode, satisfies thick, accurately machined requirement simultaneously than difficulty.
Because the working solution conductance that electric spark linear cutting machine uses is low, make the pulse power be difficult to realize homenergic processing, and inhomogeneous workpiece working (machining) efficiency and the fineness of having influenced of the wide discharge pit of simple venation.Processing electric current is a square wave, and rising edge is steep, and the molybdenum filament loss is big, when big electric current roughing, as long-time short circuit, causes fracture of wire easily, increases cost, reduces working (machining) efficiency.
Summary of the invention
The purpose of this invention is to provide the energy-saving pulse power of a kind of numerical control electric spark line cutting processing dual power supply mode multifunctional, this pulse power can be realized high pressure Compound Machining, mesolow Compound Machining, Compound Machining mesohigh/low pressure is used for the disruptive discharge gap, and middle pressure is used for big electric current spark discharge processing; With the big electric current of middle pressure in the process-cycle improper spark discharge status signal suppress the triggering signal in cycle as the pulse interval formula, cut off long short circuit, avoid burning silk; As the pulse waiting signal, passage is punctured fully the improper spark discharge state in the puncture cycle, realize homenergic processing, improve working (machining) efficiency; Thick, the fine finishining pattern handoff functionality that have satisfy different process requirements; The pulse power does not have current-limiting resistance, and the power supply caloric value is low, has improved capacity usage ratio greatly.
The energy-saving pulse power of a kind of numerical control electric spark line cutting processing dual power supply mode multifunctional of the present invention, this pulse power includes the main loop that shakes, drives the loop, detects the loop, vast sky carries processing module, length road processing module, dc source (medium voltage DC source, high/low straightening stream power supply) and power amplification loop, and vast sky carries processing module, length road processing module and is arranged at and detects the loop and shake between the loop with the master.
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 unloaded duration T
d, the duration of short-circuit T
s, spark duration T
e
Described unloaded processing module is used for the unloaded duration T that will receive
dWith setting T idle time
D0Compare, if T
d＞T
D0, then export time delayed signal T
WTo the main loop that shakes;
Described length road processing module is used for the T duration of short-circuit that will receive
sWith setting short circuit duration T
S0Compare, if T
s＞T
S0, then export reset signal T
RTo the main loop that shakes;
Described medium voltage DC source is used for the second power switch pipe T in the power amplification loop
2, the 3rd power switch pipe T
3Conducting, the first A.C. contactor K
1The big electric current spark discharge processing of turn-offing; Medium voltage DC source output 80V～90V;
The second A.C. contactor K in the described high/low straightening stream power supply
2First dc source E when closed
1Be output as high-voltage DC power supply, be used for the disruptive discharge gap, provide discharge channel for pressing big electric current spark discharge in follow-up; The second A.C. contactor K
2The first dc source E when opening
1Be output as low-voltage dc power supply, be used for the disruptive discharge gap, provide discharge channel for pressing big electric current spark discharge in follow-up; High-voltage DC power supply output 100V～150V, low-voltage dc power supply output 40V～70V;
Conducting, switch-off power switching tube are carried out according to the driving signal that drives loop output in described power amplification loop, realize multiple function processing loop switching, and the working method that realizes two kinds of power supplys on a wire cutting machine 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.
Description of drawings
Fig. 1 is the structured flowchart that the present invention has the pulse power of dual power supply pattern.
Fig. 2 is high and low dc source switching principle figure.
Fig. 3 is the circuit theory diagrams that the present invention has the pulse power of dual power supply pattern.
Fig. 4 is the circuit theory diagrams that another kind of the present invention has the pulse power of dual power supply pattern.
Fig. 5 is the waveform schematic diagram of gap discharge homenergic.
Fig. 6 is that length road, gap cuts off the waveform schematic diagram.
Fig. 7 A is triangle drive waveforms figure.
Fig. 7 B is L shaped drive waveforms figure.
The specific embodiment
The present invention is described in further detail below in conjunction with accompanying drawing.
The present invention is the energy-saving pulse power of a kind of numerical control electric spark line cutting processing dual power supply mode multifunctional, this pulse power carries processing module, length road processing module, medium voltage DC source, high/low straightening stream power supply and power amplification loop by the main loop that shakes, driving loop, detection loop, vast sky forms (referring to shown in Figure 1), and vast sky carries processing module, length road processing module is arranged at and detects loop and main shaking between the loop; The main loop that shakes, driving loop, detection loop are the custom circuit structures of existing numerical control electric spark wire electrode cutting machine bed.
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 unloaded duration T
d, the duration of short-circuit T
s, spark duration T
e
Described unloaded processing module is used for the unloaded duration T that will receive
dWith setting T idle time
D0Compare, if T
d＞T
D0, then export time delayed signal T
WTo the main loop that shakes;
Described length road processing module is used for the T duration of short-circuit that will receive
sWith setting short circuit duration T
S0Compare, if T
s＞T
S0, then export reset signal T
RTo the main loop that shakes;
Described medium voltage DC source is used for the second power switch pipe T in the power amplification loop
2, the 3rd power switch pipe T
3Conducting, the first A.C. contactor K
1The big electric current spark discharge processing of turn-offing; Medium voltage DC source output 80V～90V.
The second A.C. contactor K in the described high/low straightening stream power supply
2First dc source E when closed
1Be output as high-voltage DC power supply, be used for the disruptive discharge gap, provide discharge channel for pressing big electric current spark discharge in follow-up; The second A.C. contactor K
2The first dc source E when opening
1Be output as low-voltage dc power supply, be used for the disruptive discharge gap, provide discharge channel for pressing big electric current spark discharge in follow-up; High-voltage DC power supply output 100V～150V, low-voltage dc power supply output 40V～70V.
Conducting, switch-off power switching tube are carried out according to the driving signal that drives loop output in described power amplification loop, realize multiple function processing loop switching, and the working method that realizes two kinds of power supplys on a wire cutting machine 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 present invention, by controlling the first power switch pipe pipe T
1Open, the break time, the processing electric current pulsewidth of big electric current spark discharge is equated, realize homenergic processing; By controlling the first A.C. contactor K
1Switching realize thick, fine finishining.
In the present invention, referring to shown in Figure 2, the circuit structure of high/low straightening stream power supply is that three-phase 380V alternating current is through three-phase transformer TC, the second A.C. contactor K
2After be connected on the three-phase commutation bridge, between the positive-negative power of three-phase commutation bridge output, be parallel with bleeder resistance R1, electrolytic capacitor filter C2; The A end of the U termination three-phase transformer TC of three-phase 380V alternating current, V termination C end, W termination E end; The B of three-phase transformer TC end, D end, F end link together, a1 end, c1 end, e1 end respectively with the second A.C. contactor K
21 end, 5 ends, 9 ends connect, a2 end, c2 end, e2 end respectively with the second A.C. contactor K
23 ends, 7 ends, 11 ends connect, b end, d end, f end link together A.C. contactor K
22 ends and 4 ends link together, and be connected the second A.C. contactor K with the U1 of three-phase commutation bridge end
26 ends and 8 ends link together, and be connected the second A.C. contactor K with the V1 of three-phase commutation bridge end
210 ends and 12 ends link together, and be connected with the W1 of three-phase commutation bridge end; The positive terminal of three-phase commutation bridge links to each other with the positive terminal of electrochemical capacitor C2, the end of bleeder resistance R1, and the negative pole end of three-phase commutation bridge links to each other with the negative pole end of electrochemical capacitor C2, the other end of bleeder resistance R1.
In the present invention, the power switch pipe in the power amplification loop is chosen the 1MBH60D power tube, and the model of three phase rectifier bridge module is 6R1100G.Circuit structure referring to power amplification loop shown in Figure 3 is the second dc source E
2Positive pole be connected with the second power switch pipe 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 second diode D
2Anode, the 3rd power switch pipe T
3Emitter stage; The first dc source E
1The positive pole and second inductance L
21 end connect second inductance L
22 ends and the first power switch pipe T
1Colelctor electrode connect and second inductance L
21 end and 2 ends between be connected with the 5th diode D
5The first power switch pipe T
1The emitter stage and the first diode D
1Anode connect the first diode D
1The negative electrode and second inductance L
21 end connect first inductance L
12 ends and the first A.C. contactor K
11 end connect the first A.C. contactor K
12 ends, 4 ends be connected on the wire electrode and first inductance L
11 end and the first A.C. contactor K
13 ends connect; The second power switch pipe 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; The 3rd power switch pipe T
3Colelctor electrode and the 4th diode D
4Anode connect, workpiece is connected the 3rd power switch pipe T
3Colelctor electrode on.
In the present invention, referring to another kind of power amplification loop shown in Figure 4,, 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
2The second dc source E
2Positive pole be connected with the second power switch pipe 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 second diode D
2Anode, the 3rd power switch pipe T
3Emitter stage; The first dc source E
1Positive pole be connected 2 ends of resistance and the first power switch pipe T with 1 end of resistance
1Colelctor electrode connect, and be connected with the 5th diode D between 1 end of resistance and 2 ends
5The first power switch pipe T
1The emitter stage and the first diode D
1Anode connect the first diode D
1The negative electrode and second inductance L
21 end connect first inductance L
12 ends and the first A.C. contactor K
11 end connect the first A.C. contactor K
12 ends, 4 ends be connected on the wire electrode and first inductance L
11 end and the first A.C. contactor K
13 ends connect; The second power switch pipe 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; The 3rd power switch pipe T
3Colelctor electrode and the 4th diode D
4Anode connect, workpiece is connected the 3rd power switch pipe T
3Colelctor electrode on.
In the present invention, the second power switch pipe T
2, the 3rd power switch pipe T
3, the second diode D
2, the 3rd diode D
3, the 4th diode D
4, first inductance L
1With the first A.C. contactor K
1Constitute bridge-type power amplification loop.
In the present invention, the first dc source E
1Be adjustable dc source, can export the high pressure of 100V～150V, perhaps 40V～70V low-voltage dc power supply.High pressure is used for the high pressure cooked mode, low pressure is used for the low cooked mode of pressing.
In the present invention, the first power switch pipe T
1, second inductance L
2, the 5th diode D
5, the first diode D
1Constitute and puncture control circuit (referring to shown in Figure 2).The first power switch pipe T
1, resistance R, the 5th diode D
5, the first diode D
1Constitute and puncture control circuit (referring to shown in Figure 3).This punctures control circuit can realize that low pressure punctures, the high tension spark discharging function in the discharge processing of online cutting, for follow-up spark discharge provides less discharge channel, has improved working (machining) efficiency effectively.
In the present invention, wire electrode and workpiece are formed discharging gap.When high frequency voltage is applied on the discharging gap, realize spark discharge processing.Wire-cut Electrical Discharge Machining has three kinds of basic discharge conditions, promptly in zero load, spark and the short circuit.
In the present invention, 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 invention:
(1) senior middle school's low pressure Compound Machining
K
2Length is opened T
1, T
2Elder generation conducting, T then
2, T
3Conducting, T
1End, realize the high pressure Compound Machining; K
2Length is closed T
1, T
2Elder generation conducting, T then
2, T
3Conducting, T
1End, realize the mesolow Compound Machining.Because the first dc source E
1Be adjustable, as dc source E
1Voltage less than the second DC current E
2The time, realize that the little electric current of low pressure punctures, heavy-current discharge processing.At this moment, T
1, T
3Conducting, T
2Turn-off, because inductance L
2Existence, and T
1, T
3ON time is short, and gap voltage is less, and the electric current that flows through is also little, carries out the little electric current of low pressure and punctures, and works as T
1Turn-off T
2, T
3Conducting, E
2The voltage height, and ON time is long, and the electric current that flows through is big, presses big electric current spark discharge in carrying out.Work as E
1Adjusted voltage is greater than E
2The time, 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 6, 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 wire electrode does not have for a long time big electric current and passes through, avoided the possibility of fracture of wire, 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, during as the length road, and 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 fracture of wire 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 pipe T
1With the 3rd power switch pipe T
3Conducting simultaneously, the second power switch pipe 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 pipe T
2With the 3rd power switch pipe T
3Conducting simultaneously, the first power switch pipe 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 5, under the homenergic machining state, will detect the time delayed signal of the airborne signals in loop, then as the first power switch pipe T as the main loop that shakes
1, the 3rd power switch pipe T
3Carry out little electric current low pressure during conducting and puncture, in breakdown time, detect the loop and detect airborne signals; This airborne signals is used for controlling the opening of power switch pipe, disconnected in power amplification loop after the main loop delay process of shaking.At the first power switch pipe T
1, the 3rd power switch pipe 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 pipe T
1Turn-off the second power switch pipe T
2, the 3rd power switch pipe T
3Conducting; At the second power switch pipe T
2, the 3rd power switch pipe 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, 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
As exchange contactor K
11 end, 2 end closures, 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 pipe T
1Cut-off, realize homenergic and the switching that waits the cycle cooked mode, adapt to different processing requests, work as T
1Disconnect in the processing, T is worked as in the processing of cycles such as realization always
1Conducting in the puncture cycle in the processing 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 wire electrode loss is little
Shown in Fig. 7 A, Fig. 7 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 wire 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 L shaped current waveform, the little current preheating of elder generation, and the big electric current processing in back reduces the wire 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 (7)
1, the energy-saving pulse power of a kind of numerical control electric spark line cutting processing dual power supply mode multifunctional, this pulse power includes the main loop that shakes, driving loop, detection loop, dc source and power amplification loop and forms, it is characterized in that: also include vast sky and carry processing module, length road processing module, vast sky carries processing module, length road processing module is arranged at and detects loop and main shaking between the loop; Described dc source is made of medium voltage DC source, high/low straightening stream power supply;
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 unloaded duration T
d, the duration of short-circuit T
s, spark duration T
e
Described unloaded processing module is used for the unloaded duration T that will receive
dWith setting T idle time
D0Compare, if T
d＞T
D0, then export time delayed signal T
WTo the main loop that shakes;
Described length road processing module is used for the T duration of short-circuit that will receive
sWith setting short circuit duration T
S0Compare, if T
s＞T
S0, then export reset signal T
RTo the main loop that shakes;
Described medium voltage DC source is used for the second power switch pipe (T in the power amplification loop
2), the 3rd power switch pipe (T
3) conducting, the first A.C. contactor (K
1) the big electric current spark discharge processing of turn-offing; Medium voltage DC source output 80V～90V;
Second A.C. contactor (the K in the described high/low straightening stream power supply
2) first dc source (E when closed
1) be output as high-voltage DC power supply, be used for the disruptive discharge gap, provide discharge channel for pressing big electric current spark discharge in follow-up; Second A.C. contactor (the K
2) the first dc source (E when opening
1) be output as low-voltage dc power supply, be used for the disruptive discharge gap, provide discharge channel for pressing big electric current spark discharge in follow-up; High-voltage DC power supply output 100V～150V, low-voltage dc power supply output 40V～70V;
Conducting, switch-off power switching tube are carried out according to the driving signal that drives loop output in described power amplification loop, realize multiple function processing loop switching, and the working method that realizes two kinds of power supplys on a wire cutting machine 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, the energy-saving pulse power of dual power supply mode multifunctional according to claim 1 is characterized in that: the circuit structure of high/low straightening stream power supply is that three-phase 380V alternating current is through three-phase transformer (TC), the second A.C. contactor (K
2) after be connected on the three-phase commutation bridge, after being parallel with bleeder resistance (R1), electrolytic capacitor filter (C2) between the positive-negative power of three-phase commutation bridge output, be loaded on the first DC current (E
1); The A end of the U termination three-phase transformer (TC) of three-phase 380V alternating current, V termination C end, W termination E end; The B of three-phase transformer (TC) end, D end, F end link together, the a1 end of three-phase transformer (TC), c1 end, e1 end respectively with the second A.C. contactor (K
2) 1 end, 5 ends, 9 ends connect, the a2 end of three-phase transformer (TC), c2 end, e2 end respectively with the second A.C. contactor (K
2) 3 ends, 7 ends, 11 ends connect, the b end of three-phase transformer (TC), d end and f end link together A.C. contactor (K
2) 2 ends and 4 ends link together, and be connected the second A.C. contactor (K with the U1 of three-phase commutation bridge end
2) 6 ends and 8 ends link together, and be connected the second A.C. contactor (K with the V1 of three-phase commutation bridge end
2) 10 ends and 12 ends link together, and be connected with the W1 of three-phase commutation bridge end; The positive terminal of three-phase commutation bridge links to each other with the positive terminal of electrochemical capacitor (C2), an end of bleeder resistance (R1), and the negative pole end of three-phase commutation bridge links to each other with the negative pole end of electrochemical capacitor (C2), the other end of bleeder resistance (R1).
3, the energy-saving pulse power of dual power supply mode multifunctional 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 pipe (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 second diode (D
2) anode, the 3rd power switch pipe (T
3) emitter stage; First dc source (the E
1) the positive pole and the second inductance (L
2) 1 end connect the second inductance (L
2) 2 ends and the first power switch pipe (T
1) colelctor electrode connect and the second inductance (L
2) 1 end and 2 ends between be connected with the 5th diode (D
5); First power switch pipe (the T
1) the emitter stage and the first diode (D
1) anode connect the first diode (D
1) the negative electrode and the first inductance (L
1) 1 end connect the first inductance (L
1) 2 ends and the first A.C. contactor (K
1) 1 end connect the first A.C. contactor (K
1) 2 ends, 4 ends be connected on the wire electrode and the first inductance (L
1) 1 end and the first A.C. contactor (K
1) 3 ends connect; Second power switch pipe (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
2) negative electrode connect and the 3rd diode (D
3) the negative electrode and the first inductance (L
1) 1 end connect; 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.
4, the energy-saving pulse power of dual power supply mode multifunctional 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 pipe (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 second diode (D
2) anode, the 3rd power switch pipe (T
3) emitter stage; First dc source (the E
1) positive pole be connected 2 ends of resistance R and the first power switch pipe (T with 1 end of resistance R
1) colelctor electrode connect, and be connected with the 5th diode (D between 1 end of resistance R and 2 ends
5); First power switch pipe (the T
1) the emitter stage and the first diode (D
1) anode connect the first diode (D
1) the negative electrode and the first inductance (L
1) 1 end connect the first inductance (L
1) 2 ends and the first A.C. contactor (K
1) 1 end connect the first A.C. contactor (K
1) 2 ends, 4 ends be connected on the wire electrode and the first inductance (L
1) 1 end and the first A.C. contactor (K
1) 3 ends connect; Second power switch pipe (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
2) negative electrode connect and the 3rd diode (D
3) the negative electrode and the first inductance (L
1) 1 end connect; 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.
5, according to the claim 3 or the energy-saving pulse power of 4 described dual power supply mode multifunctionals, it is characterized in that: the second power switch pipe (T
2), the 3rd power switch pipe (T
3), the second diode (D
2), the 3rd diode (D
3), the 4th diode (D
4), the first inductance (L
1) and the first A.C. contactor (K
1) formation bridge-type power amplification loop.
6, the energy-saving pulse power of dual power supply mode multifunctional according to claim 3 is characterized in that: the first power switch pipe (T
1), the second inductance (L
2), the 5th diode (D
5), the first diode (D
1) formation puncture control circuit.
7, the energy-saving pulse power of dual power supply mode multifunctional according to claim 4 is characterized in that: first power switch pipe (T), resistance (R), the 5th diode (D
5), the first diode (D
1) formation puncture control circuit.
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| CN200810088928A CN100577335C (en) | 2008-04-08 | 2008-04-08 | Numerical control double-power mode multifunctional impulsing power source for electrospark wire-electrode cutting processing |
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|---|---|---|---|
| CN200810088928A CN100577335C (en) | 2008-04-08 | 2008-04-08 | Numerical control double-power mode multifunctional impulsing power source for electrospark wire-electrode cutting processing |
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| CN101318242A CN101318242A (en) | 2008-12-10 |
| CN100577335C true CN100577335C (en) | 2010-01-06 |
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Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114559B (en) * | 2010-01-05 | 2012-06-06 | 北京安德建奇数字设备有限公司 | Alternating polarity pulsed power supply |
| CN102626810B (en) * | 2012-05-02 | 2013-12-04 | 宣浩 | Vibration discharge processing method |
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| CN104107967B (en) * | 2013-04-19 | 2017-01-25 | 上海大量电子设备有限公司 | Intelligent-control high frequency pulse power supply |
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| CN109158719B (en) * | 2018-08-31 | 2019-11-26 | 哈尔滨工业大学（深圳） | A kind of electrochemical micromachining device of electrostatically actuated supplementary feeding |
| 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 |
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| CN111644718B (en) * | 2019-12-31 | 2022-08-12 | 南京理工大学 | Pulse power supply for smooth machining of medium-speed wire cutting and machining method thereof |
| CN111431431A (en) * | 2020-01-20 | 2020-07-17 | 南京理工大学 | Anti-electrolysis high-low voltage composite micro pulse power supply |
| CN112620843A (en) * | 2020-12-25 | 2021-04-09 | 江苏塞维斯数控科技有限公司 | Medium-speed wire pure oil cutting high-frequency energy-saving power supply with negative pressure |
| CN113708657B (en) * | 2021-09-01 | 2023-08-22 | 中国石油大学(华东) | Electric spark voltage-stabilizing 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 |
| CN114505552B (en) * | 2022-03-10 | 2023-08-04 | 杭州依迪爱姆技术有限公司 | Double-power-supply lead-in electric discharge machining method for reciprocating wire-moving wire-cut electric discharge machine |
-
2008
- 2008-04-08 CN CN200810088928A patent/CN100577335C/en not_active Expired - Fee Related
Non-Patent Citations (8)
| Title |
|---|
| 电火花加工中脉冲电源放电维持电压研究. 郑红等.哈尔滨工业大学学报，第30卷第3期. 1998 |
| 电火花加工中脉冲电源放电维持电压研究. 郑红等.哈尔滨工业大学学报，第30卷第3期. 1998 * |
| 电火花微能脉冲电源研究现状. 任忠辉等.电加工与模具，第/卷第3期. 2006 |
| 电火花微能脉冲电源研究现状. 任忠辉等.电加工与模具，第/卷第3期. 2006 * |
| 线切割放电加工控制方法与装置. 梁挥.机械工人（冷加工），第/卷第5期. 2000 |
| 线切割放电加工控制方法与装置. 梁挥.机械工人(冷加工)，第/卷第5期. 2000 * |
| 高精度电火花成形加工设备的研制. 杨大勇等.航空精密制造技术，第43卷第5期. 2007 |
| 高精度电火花成形加工设备的研制. 杨大勇等.航空精密制造技术，第43卷第5期. 2007 * |
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