CN102756187B - Wire cutting machine tool jumps out of the wire transporting circuit of guide wheel protection circuit with molybdenum filament - Google Patents
Wire cutting machine tool jumps out of the wire transporting circuit of guide wheel protection circuit with molybdenum filament Download PDFInfo
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- CN102756187B CN102756187B CN201210271589.XA CN201210271589A CN102756187B CN 102756187 B CN102756187 B CN 102756187B CN 201210271589 A CN201210271589 A CN 201210271589A CN 102756187 B CN102756187 B CN 102756187B
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- molybdenum filament
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Abstract
The wire transporting circuit that wire cutting machine tool jumps out of guide wheel protection circuit with molybdenum filament relates to the wire transporting circuit field that protection molybdenum filament jumps out of guide wheel.Three-phase ac power cord is powered to three phase electric machine M3 through buffering Transformer Winding W, V, U, winding resistance R3, R2 and R1 and controllable silicon B1, B2, B3 and B4, and power transformer T powers to secondary windings W1, W2; Molybdenum filament, conductor and molybdenum filament jump out of the DC voltage that guide wheel relay K A4 series circuit two ends obtain voltage doubling rectifing circuit; Alarm indicator in parallel in wire transporting control circuit and loudspeaker can send sound and light alarm, and wire transporting contactor KM1 can control three phase electric machine M3 and run.After molybdenum wire jumps out of guide wheel, three phase electric machine M3 can be made out of service, protection workpiece is cut not bad.
Description
Technical field
The wire transporting circuit that wire cutting machine tool of the present invention jumps out of guide wheel protection circuit with molybdenum filament relates to the wire transporting circuit field that protection molybdenum filament jumps out of guide wheel.
Background technology
In wire cutting machine tool wire transporting circuit in the past; after molybdenum filament operationally jumps out of guide wheel suddenly; then workpiece to be machined will be bad by the molybdenum filament cutting continuing to run; if be designed with the protection circuit that molybdenum filament jumps out of guide wheel in the wire transporting circuit of cutting on line lathe, making molybdenum filament, out of service in time can workpiece to be avoided to be cut bad.Guided wheel slot is jumped out of once when molybdenum filament; if add alarm indicator and loudspeaker just energy and alarm in wire transporting control circuit; simultaneously; if be designed with molybdenum filament in the protection circuit to jump out of guide wheel relay K A4; when after its energising; then molybdenum filament jumps out of guide wheel relay normally-closed contact MA4A and will disconnect; just make the wire transporting contactor KM1 power-off be connected in wire transporting control circuit; then three phase electric machine M3 is just by stall; therefore; need to design a kind of wire transporting circuit jumping out of guide wheel protection circuit with molybdenum filament, to solve the problem.
The object of this invention is to provide a kind of wire cutting machine tool jumps out of guide wheel protection circuit wire transporting circuit with molybdenum filament; guide wheel protection circuit, wire transporting control circuit is jumped out of, to reach the object that the three phase electric machine in wire transporting motor circuit can be made to shut down when molybdenum filament jumps out of guide wheel by molybdenum filament:
Wire cutting machine tool jumps out of the wire transporting circuit of guide wheel protection circuit with molybdenum filament, by wire transporting motor circuit, molybdenum filament jumps out of guide wheel protection circuit and wire transporting control circuit composition, wire transporting motor circuit is made up of following: three-phase ac power cord L1, L2 and L3 respectively with three-phase alternating-current supply fuse FU1, FU2 and FU3, the wire transporting contactor normally opened contact KM1B of wire transporting contactor KM1, KM1C and KM1D, buffering Transformer Winding W, V and U, protective resistance R3, one end of R2 and R1 is in series, the protective resistance R3 other end is connected with controllable silicon B4 negative electrode with controllable silicon B1 negative electrode respectively, the protective resistance R1 other end is connected with controllable silicon B3 negative electrode with controllable silicon B2 negative electrode respectively, controllable silicon B1 is connected with three phase electric machine winding U2 with the anode of controllable silicon B2, controllable silicon B3 is connected with three phase electric machine winding W2 with the anode of controllable silicon B4, protective resistance R2 is directly connected with three phase electric machine winding V2, controllable silicon B1, B2, B3 are connected with their one end of biasing resistor r5, r6, r7 and r8 respectively with the control pole of B4, the other end of biasing resistor r5 with r6 is connected with motor commutation relay contact KA1C, the other end of biasing resistor r7 with r8 is connected with motor commutation relay contact KA1B, is parallel with absorption circuit capacitor C1 and resistance r1, capacitor C2 and resistance r2, capacitor C3 and resistance r3, capacitor C4 and the resistance r4 of series connection at the negative electrode of each controllable silicon B1, B2, B3 and B4 and anode two ends respectively, the armature winding two ends of power transformer T are connected with three-phase ac power cord L1 and center line N respectively,
Molybdenum filament jumps out of guide wheel protection circuit and is made up of following: the secondary windings W1 two ends of power transformer T are parallel with power supply indicator ZD1, secondary windings W1 one end is connected with voltage multiplying rectifier diode D1 positive pole, the secondary windings W1 other end is connected between voltage multiplying rectifier capacitor C6 negative pole and voltage multiplying rectifier capacitor C7 positive pole, voltage multiplying rectifier diode D1 negative pole is connected with voltage multiplying rectifier capacitor C6 positive pole and is connected with molybdenum filament MS one end respectively, voltage multiplying rectifier diode D2 negative pole is connected with voltage multiplying rectifier diode D1 positive pole, voltage multiplying rectifier diode D2 positive pole jumps out of guide wheel relay K A4 one end with voltage multiplying rectifier capacitor C7 negative pole and molybdenum filament respectively and is connected, molybdenum filament jumps out of the guide wheel relay K A4 other end and is connected with conductor P,
Wire transporting control circuit is made up of following: secondary windings W2 one end of power transformer T is connected with sound and light alarm fuse FU4 one end, is connected with between sound and light alarm fuse FU4 other end A point and secondary windings W2 other end B point: (1) by molybdenum filament jump out of guide wheel relay normally open contact KA4B in parallel with by loudspeaker BZ, alarm indicator ZD3 after the series circuit that is in series of parallel circuit;
(2) by suddenly stopping normally closed button SB1, molybdenum filament jumps out of guide wheel relay normally-closed contact KA4A, travel switch first normally closedly always stops contact SQ1, travel switch second normally-closed contact SQ2, motor commutation relay normally open contact KA1A and motor commutation relay K A1 are composed in series holding circuit: travel switch normally opened contact SQ3 two ends are connected in motor commutation relay normally open self holding contact KA1A two ends in parallel;
Normally closedly always stop contact SQ1 at travel switch first, be sequentially connected in series by the wire transporting holding circuit be made up of the normally closed button SB2 of wire transporting motor, wire transporting contactor normally opened contact KM1A and wire transporting contactor KM1 between both travel switch second normally-closed contact SQ2 tie point place and secondary windings W2 other end B point, and be connected in parallel at wire transporting contactor normally opened contact KM1A two ends and open wire transporting motor push button SB3.
The wire transporting motor circuit structure that wire cutting machine tool of the present invention jumps out of in the wire transporting circuit of guide wheel protection circuit with molybdenum filament further illustrates as follows:
The series circuit absorbing the capacitor C1 of high tension voltage and resistance r1 and be in series is parallel with respectively at their each negative electrode of controllable silicon B1, controllable silicon B2, controllable silicon B3 and controllable silicon B4 and each anode two ends, the series circuit that capacitor C2 and resistance r2 is in series, the series circuit that capacitor C3 and resistance r3 is in series and the series circuit that capacitor C4 and resistance r4 is in series.
Each controllable silicon B1, controllable silicon B2, their each control pole of controllable silicon B3 and controllable silicon B4 respectively with respective biasing resistor r5 one end, biasing resistor r6 one end, biasing resistor r7 one end and biasing resistor r8 one end are connected, the biasing resistor r5 other end and the biasing resistor r6 other end are connected respectively to motor commutation relay contact KA1C, the biasing resistor r7 other end and the biasing resistor r8 other end are connected respectively to motor commutation relay contact KAIB, the public moving plate of motor commutation relay contact KAIC simultaneously with controllable silicon B1 anode, controllable silicon B2 anode and three phase electric machine winding U2 are connected, the public moving plate of motor commutation relay contact KAIB simultaneously with controllable silicon B3 anode, controllable silicon B4 anode and three phase electric machine winding W2 are connected.
In wire transporting control circuit, when opening wire transporting motor push button SB3 and pressing, the wire transporting contactor KM1 be connected in secondary windings W2 circuit is energized, then wire transporting contactor normally opened contact KM1A closes self-insurance, make wire transporting contactor normally opened contact KM1B simultaneously, KM1C and KM1D is closed, then three-phase ac power cord L1, L2 and L3 is respectively through three-phase ac power cord fuse FU1, FU2 and FU3, wire transporting contactor normally opened contact KM1B, KM1C and KM1D is respectively to buffering Transformer Winding W, winding V and winding U and protective resistance R3, protective resistance R2 and protective resistance R1 powers, through protective resistance R3 to bidirectional triode thyristor B1, B4 powers, through protective resistance R1 to bidirectional triode thyristor B2, B3 powers, protective resistance R2 directly powers to three phase electric machine M3 winding V2.
When the public moving plate in motor commutation relay contact KA1C is not connected with the biasing resistor r5 other end of controllable silicon B1, then controllable silicon B1 controls the bias voltage that pole can not get conducting, controllable silicon B1 not conducting, at this moment the public moving plate in motor commutation relay contact KA1C is connected with the biasing resistor r6 other end of controllable silicon B2, controllable silicon B2 control pole is made to obtain the bias voltage of conducting, then controllable silicon B2 conducting; At this moment three-phase ac power cord L3 powers to three phase electric machine M3 winding U2 through controllable silicon B2.
Equally, when the public moving plate in motor commutation relay contact KA1B is not connected with the biasing resistor r7 other end of controllable silicon B3, then controllable silicon B3 controls pole without bias voltage, not conducting, at this moment, the public moving plate in motor commutation relay contact KA1B is connected with the biasing resistor r8 other end of controllable silicon B4, controllable silicon B4 control pole is made to obtain the bias voltage of conducting, then make controllable silicon B4 conducting, now, three-phase ac power cord L1 powers to three phase electric machine M3 winding W2 through controllable silicon B4.
Three phase electric machine M3 winding V2 can be powered from three-phase ac power cord L2 all the time.
In wire transporting control circuit, after travel switch normally opened contact SQ3 is clashed into connection by collision block, motor commutation relay K A1 is made to connect energising, then motor commutation relay contact KA1C and their public moving plate of motor commutation relay contact KA1B respectively with biasing resistor r5, biasing resistor r7 connects, make controllable silicon B1 control pole and controllable silicon B3 control pole and obtain bias voltage, make controllable silicon B1 and controllable silicon B3 all conductings, now controllable silicon B2 and controllable silicon B4 all not conductings, thus three-phase alternating current streamline L1 and three-phase ac power cord L3 is powered to the winding U2 of three phase electric machine M3 and winding W2 respectively, three phase electric machine M3 is reversed, realize three phase electric machine M3 to commutate, after making travel switch second normally-closed contact SQ2 disconnect after collision block clashes into, then motor commutation relay K A1 power-off again, the public moving plate of the public moving plate of motor commutation relay contact KAIC and motor commutation relay contact KAIB is made to return again original on-state, then controllable silicon B2 and controllable silicon B4 conducting again, and at this moment controllable silicon B1 and controllable silicon B3 not conductings, at this moment three-phase ac power cord L1 and three-phase ac power cord L3 powers to the winding W2 of three phase electric machine M3 and winding U2 again respectively, three phase electric machine M3 is reversed again, realizes three phase electric machine commutation again.
Jump out of in guide wheel protection circuit at molybdenum filament; the secondary windings W1 of transformer T can obtain 6.3 volts of alternating voltages; through the voltage doubling rectifing circuit be made up of voltage multiplying rectifier diode D1, voltage multiplying rectifier diode D2 and voltage multiplying rectifier capacitor C6, voltage multiplying rectifier capacitor C7, jump out of the DC voltage U that guide wheel relay K A4 provides 12.6 volts to molybdenum filament MS, the conductor P of series connection and molybdenum filament
cD, once molybdenum filament MS jumps out of guide wheel, then molybdenum filament MS and conductor P connects, thus make molybdenum filament jump out of guide wheel relay K A4 to be energized, the molybdenum filament in wire transporting control circuit is then made to jump out of guide wheel relay normally open contact KA4B adhesive, thus, make the loudspeaker BZ that is connected in parallel and the same alarm of alarm indicator ZD3.
In wire transporting control circuit, the secondary windings W2 of transformer T can obtain 24 volts of alternating voltages, after the sound and light alarm fuse FU4 connected with secondary windings W2, by the alternating voltage U of 24 volts
aBjump out of guide wheel relay normally open contact KA4B through molybdenum filament and be applied to loudspeaker BZ two ends in parallel and alarm indicator ZD3 two ends.
In wire transporting control circuit, suddenly stop normally closed button SB1, molybdenum filament jumps out of guide wheel relay normally-closed contact KA4A and travel switch first is normally closed always stops contact SQ1 three and be all connected on the alternating voltage U that secondary windings W2 provides
aBin the circuit between A, B 2 of=24 volts, therefore, stop after normally closed button SB1 is pressed when anxious, above-mentioned series circuit is with regard to power-off, make the wire transporting contactor KM1 power-off be connected in above-mentioned series circuit, closure state when just making wire transporting contactor normally opened contact KM1B, KM1C and the KM1D closed during normal wire transporting be run by three phase electric machine M3 is transformed into normally open during original power-off, then three phase electric machine M3 is out of service because can not get three-phase alternating current electric current.
Equally; after the molybdenum filament MS jumped out of in guide wheel protection circuit when molybdenum filament jumps out of guide wheel; molybdenum filament MS contacts with conductor P; molybdenum filament is made to jump out of the coil electricity of guide wheel relay K A4; then molybdenum filament jumps out of guide wheel relay normally-closed contact KA4A and disconnects; also make wire transporting contactor KM1 power-off, make three phase electric machine M3 out of service.
When collision block impact stroke switch first is normally closed always stop contact SQ1 after, then make the normally closed contact SQ1 that always stops of travel switch first disconnect, also can make wire transporting contactor KM1 power-off, make three phase electric machine M3 out of service.
The wire transporting circuit advantage that wire cutting machine tool of the present invention jumps out of guide wheel protection circuit with molybdenum filament is after molybdenum filament jumps out of guide wheel; can reliably make three phase electric machine M3 out of service in time; and send audible and visual alarm signal by alarm indicator ZD3 and loudspeaker BZ simultaneously; protect cut workpiece cut not bad; after making operating personnel learn fault in time; molybdenum filament is repaired in time, makes it normally run.
Accompanying drawing explanation
Circuit diagram in accompanying drawing is that this wire cutting machine tool jumps out of the wire transporting circuit diagram of guide wheel protection circuit with molybdenum filament.
Detailed description of the invention
Jump out of the wire transporting circuit diagram of guide wheel protection circuit with molybdenum filament see this wire cutting machine tool, this circuit diagram jumps out of guide wheel protection circuit by wire transporting motor circuit, molybdenum filament and wire transporting control circuit three part forms.
As as described in shown in wire transporting circuit diagram, press the unlatching wire transporting motor push button SB3 in wire transporting control circuit as operating personnel after, wire transporting motor M 3 can be opened, make the wire transporting contactor KM1 be connected in wire transporting control circuit obtain U by secondary windings W2
aBthe alternating voltage of=24 volts, after wire transporting contactor KM1 is energized, then each wire transporting contactor normally opened contact: KM1A, KM1B, KM1C and KM1D is all closed, after wire transporting contactor normally opened contact KM1A is closed, make wire transporting contactor KM1 self-insurance, wire transporting contactor normally opened contact KM1B, after KM1C and KM1D is closed, the three phase electric machine winding W2 of the three phase electric machine M3 in wire transporting motor circuit can be made, V2 and U2 is by three-phase ac power cord L1, L2 and L3 is respectively through three-phase alternating-current supply fuse FU1, FU2 and FU3, wire transporting contactor normally opened contact KM1B, KM1C and KM1D, buffering Transformer Winding W, V and U, protective resistance R3, the series circuit of R2 and R1 composition, again through controllable silicon B1 or B2, B3 or B4 obtains the suitable alternating current of voltage.
In above-mentioned wire transporting motor circuit, after biasing resistor r5, r6, r7 and r8 that their control pole of controllable silicon B1, B2, B3 and B4 is corresponding with them respectively and motor commutation relay contact KAIC, motor commutation relay contact KAIB are connected, make three phase electric machine winding W2 and U2 in three phase electric machine M3 alternately obtain alternating current from three-phase ac power cord L1, L3 respectively, realize the commutation of three phase electric machine M3. run to make the molybdenum filament on molybdenum filament wire storage tube realize commutation in time.
In wire transporting motor circuit, be connected in parallel on series connection absorption circuit capacitor C1 and resistance r1, capacitor C2 and resistance r2, capacitor C3 and resistance r3, capacitor C4 and the resistance r4 at their negative electrode of controllable silicon B1, B2, B3 and B4 and anode two ends, be used for absorbing high tension voltage.
Jump out of in guide wheel protection circuit at molybdenum filament, power supply indicator ZD1 is attempted by the secondary windings W1 two ends of 6.3 volts, indicates with or without supply voltage.
Voltage multiplying rectifier diode D1, voltage multiplying rectifier diode D2, voltage multiplying rectifier capacitor C6 and voltage multiplying rectifier capacitor C7 form voltage doubling rectifing circuit, and the DC voltage of 12.6 volts that produce is applied to molybdenum filament MS, conductor P and molybdenum filament and jumps out of on the series circuit of guide wheel relay K A4 composition.
After molybdenum filament MS jumps out of guide wheel, molybdenum filament MS and conductor P connects, then molybdenum filament jumps out of in guide wheel relay K A4 electric current, make the molybdenum filament in wire transporting control circuit jump out of guide wheel relay normally-closed contact KA4A to disconnect, then wire transporting contactor KM1 power-off, wire transporting contactor normally opened contact KM1A, KM1B, KM1C and KM1D all return to normally open, make three phase electric machine M3 power-off out of service.
Three-phase alternating-current supply fuse FU1, FU2 and FU3 rated current is 6 amperes (6A), and sound and light alarm fuse FU4 rated current is 2 installations (2A).
The line voltage of three-phase ac power cord is 380 volts, after buffering Transformer Winding W, V and U, protective resistance R3, R2 and R1, the alternating voltage be applied on winding W2, V2 and U2 of three phase electric machine M3 is reduced pressure.
Power transformer T armature winding both end voltage is 220 volts, and secondary windings W1 both end voltage is 6.3 volts, and secondary windings W2 both end voltage is 24 volts.
Claims (2)
1. wire cutting machine tool jumps out of the wire transporting circuit of guide wheel protection circuit with molybdenum filament, by wire transporting motor circuit, molybdenum filament jumps out of guide wheel protection circuit and wire transporting control circuit composition, it is characterized in that: wire transporting motor circuit is made up of following: three-phase ac power cord L1, L2 and L3 respectively with three-phase alternating-current supply fuse FU1, FU2 and FU3, the wire transporting contactor normally opened contact KM1B of wire transporting contactor KM1, KM1C and KM1D, buffering Transformer Winding W, V and U, protective resistance R3, one end of R2 and R1 is in series, the protective resistance R3 other end is connected with controllable silicon B4 negative electrode with controllable silicon B1 negative electrode respectively, the protective resistance R1 other end is connected with controllable silicon B3 negative electrode with controllable silicon B2 negative electrode respectively, controllable silicon B1 is connected with three phase electric machine winding U2 with the anode of controllable silicon B2, controllable silicon B3 is connected with three phase electric machine winding W2 with the anode of controllable silicon B4, protective resistance R2 is directly connected with three phase electric machine winding V2, controllable silicon B1, B2, B3 are connected with their one end of biasing resistor r5, r6, r7 and r8 respectively with the control pole of B4, the other end of biasing resistor r5 with r6 is connected with motor commutation relay contact KA1C, the other end of biasing resistor r7 with r8 is connected with motor commutation relay contact KA1B, is parallel with absorption circuit capacitor C1 and resistance r1, capacitor C2 and resistance r2, capacitor C3 and resistance r3, capacitor C4 and the resistance r4 of series connection at the negative electrode of each controllable silicon B1, B2, B3 and B4 and anode two ends respectively, the armature winding two ends of power transformer T are connected with three-phase ac power cord L1 and center line N respectively,
Molybdenum filament jumps out of guide wheel protection circuit and is made up of following: the secondary windings W1 two ends of power transformer T are parallel with power supply indicator ZD1, secondary windings W1 one end is connected with voltage multiplying rectifier diode D1 positive pole, the secondary windings W1 other end is connected between voltage multiplying rectifier capacitor C6 negative pole and voltage multiplying rectifier capacitor C7 positive pole, voltage multiplying rectifier diode D1 negative pole is connected with voltage multiplying rectifier capacitor C6 positive pole and is connected with molybdenum filament MS one end respectively, voltage multiplying rectifier diode D2 negative pole is connected with voltage multiplying rectifier diode D1 positive pole, voltage multiplying rectifier diode D2 positive pole jumps out of guide wheel relay K A4 one end with voltage multiplying rectifier capacitor C7 negative pole and molybdenum filament respectively and is connected, molybdenum filament jumps out of the guide wheel relay K A4 other end and is connected with conductor P,
Wire transporting control circuit is made up of following: secondary windings W2 one end of power transformer T is connected with sound and light alarm fuse FU4 one end, is connected with between sound and light alarm fuse FU4 other end A point and secondary windings W2 other end B point:
(1) by molybdenum filament jump out of guide wheel relay normally open contact KA4B in parallel with by loudspeaker BZ, alarm indicator ZD3 after the series circuit that is in series of parallel circuit;
(2) by suddenly stopping normally closed button SB1, molybdenum filament jumps out of guide wheel relay normally-closed contact KA4A, travel switch first normally closedly always stops contact SQ1, travel switch second normally-closed contact SQ2, motor commutation relay normally open contact KA1A and motor commutation relay K A1 are composed in series holding circuit; Travel switch normally opened contact SQ3 two ends are connected in motor commutation relay normally open self holding contact KA1A two ends in parallel;
Normally closedly always stop contact SQ1 at travel switch first, be sequentially connected in series by the wire transporting holding circuit be made up of the normally closed button SB2 of wire transporting motor, wire transporting contactor normally opened contact KM1A and wire transporting contactor KM1 between both travel switch second normally-closed contact SQ2 tie point place and secondary windings W2 other end B point, and be connected in parallel at wire transporting contactor normally opened contact KM1A two ends and open wire transporting motor push button SB3.
2. wire cutting machine tool according to claim 1 jumps out of the wire transporting circuit of guide wheel protection circuit with molybdenum filament; it is characterized in that the line voltage of three-phase ac power cord is 380 volts: the simple winding both end voltage of power transformer T is 220 volts; secondary windings W1 both end voltage is 6.3 volts, and secondary windings W2 both end voltage is 24 volts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210271589.XA CN102756187B (en) | 2012-07-26 | 2012-07-26 | Wire cutting machine tool jumps out of the wire transporting circuit of guide wheel protection circuit with molybdenum filament |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210271589.XA CN102756187B (en) | 2012-07-26 | 2012-07-26 | Wire cutting machine tool jumps out of the wire transporting circuit of guide wheel protection circuit with molybdenum filament |
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| Publication Number | Publication Date |
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| CN102756187A CN102756187A (en) | 2012-10-31 |
| CN102756187B true CN102756187B (en) | 2015-11-25 |
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| CN201210271589.XA Expired - Fee Related CN102756187B (en) | 2012-07-26 | 2012-07-26 | Wire cutting machine tool jumps out of the wire transporting circuit of guide wheel protection circuit with molybdenum filament |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104377652B (en) * | 2013-09-25 | 2017-09-15 | 丁成才 | Numerical control yarn cutting machine sand line disconnection protection circuit |
| CN104002002B (en) * | 2013-10-17 | 2017-08-01 | 江苏信息职业技术学院 | A kind of wire cutting machine tool wire transporting dynamic measuring control system |
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| US3463720A (en) * | 1964-10-16 | 1969-08-26 | Rolls Royce | Electro-chemical machining control system |
| US4575603A (en) * | 1983-03-12 | 1986-03-11 | Inoue-Japax Research Incorporated | TW-Electroerosion with controlled flushing flow guidance means |
| US4950860A (en) * | 1987-03-14 | 1990-08-21 | Spark Tec Limited | Electro-discharge machining apparatus |
| CN2108599U (en) * | 1991-07-15 | 1992-07-01 | 王国君 | Automatic protector for wire cutter |
| CN2686780Y (en) * | 2003-09-27 | 2005-03-23 | 扬州光明机电设备有限公司 | Electric spark linear cutting machine wire-moving mechanism |
| CN201195220Y (en) * | 2008-04-29 | 2009-02-18 | 蒋荣华 | High-frequency control system of medium-wire-walking numerical control machine |
| CN201848614U (en) * | 2010-11-17 | 2011-06-01 | 上海斌盛电子机械有限公司 | Wire pressing wheel device of coil holder |
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2012
- 2012-07-26 CN CN201210271589.XA patent/CN102756187B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3463720A (en) * | 1964-10-16 | 1969-08-26 | Rolls Royce | Electro-chemical machining control system |
| US4575603A (en) * | 1983-03-12 | 1986-03-11 | Inoue-Japax Research Incorporated | TW-Electroerosion with controlled flushing flow guidance means |
| US4950860A (en) * | 1987-03-14 | 1990-08-21 | Spark Tec Limited | Electro-discharge machining apparatus |
| CN2108599U (en) * | 1991-07-15 | 1992-07-01 | 王国君 | Automatic protector for wire cutter |
| CN2686780Y (en) * | 2003-09-27 | 2005-03-23 | 扬州光明机电设备有限公司 | Electric spark linear cutting machine wire-moving mechanism |
| CN201195220Y (en) * | 2008-04-29 | 2009-02-18 | 蒋荣华 | High-frequency control system of medium-wire-walking numerical control machine |
| CN201848614U (en) * | 2010-11-17 | 2011-06-01 | 上海斌盛电子机械有限公司 | Wire pressing wheel device of coil holder |
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| CN102756187A (en) | 2012-10-31 |
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Effective date of registration: 20161228 Address after: 225300 Jiangsu Province, Taizhou City Hailing Xingtai Road No. 16 Patentee after: TAIZHOU JIANGZHOU CNC MACHINE TOOL MANUFACTURE CO., LTD. Address before: Cheung Road, Kowloon Industrial Park in Jiangsu province Taizhou City Hailing District 225300 No. 16 Taizhou City, Jiangzhou CNC Machine Tool Co. Patentee before: Cao Shanshu |
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