CN206286678U - A kind of without hindrance high-frequency circuit of wire cutting - Google Patents
A kind of without hindrance high-frequency circuit of wire cutting Download PDFInfo
- Publication number
- CN206286678U CN206286678U CN201621233752.3U CN201621233752U CN206286678U CN 206286678 U CN206286678 U CN 206286678U CN 201621233752 U CN201621233752 U CN 201621233752U CN 206286678 U CN206286678 U CN 206286678U
- Authority
- CN
- China
- Prior art keywords
- voltage
- source
- stabilizing constant
- power amplifier
- radio frequency
- 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 - Fee Related
Links
Landscapes
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The utility model discloses a kind of without hindrance high-frequency circuit of wire cutting, it includes voltage-stabilizing constant-source, cutting workpiece, sparking electrode, radio frequency power amplifier pipe and high-frequency impulse output circuit, the voltage-stabilizing constant-source has positive terminal, negative pole end, the positive terminal connection cutting workpiece of the voltage-stabilizing constant-source, the negative pole end ground connection of the voltage-stabilizing constant-source simultaneously connects sparking electrode after connecting the radio frequency power amplifier pipe, and the high-frequency impulse output circuit connects the control end of the radio frequency power amplifier pipe to control the conducting of the radio frequency power amplifier pipe and end.It has the following advantages that：Energy-conservation, raising cutting efficiency, improve processing stability, and processing effect is good；Circuit structure is simple, ingenious.
Description
Technical field
The utility model is related to linear cutter field, more particularly to a kind of without hindrance high-frequency circuit of wire cutting.
Background technology
Traditional Wire EDM high-frequency circuit is as shown in figure 1, including power supply 1, current-limiting resistance 2, cutting workpiece 3, put
Electrode (molybdenum filament) 4, high-frequency impulse output circuit (not shown) and radio frequency power amplifier pipe 5, cutting workpiece 3 and sparking electrode 4
Between formed discharging gap 6, the positive terminal of power supply 1 through connect current-limiting resistance 2 after connect cutting workpiece 3, the negative pole end of power supply 1 be grounded simultaneously
Connect sparking electrode 4 after connecting radio frequency power amplifier pipe 5, the control end of high-frequency impulse output circuit connection radio frequency power amplifier pipe 5 is controlled
The conducting of radio frequency power amplifier pipe 5 processed and cut-off, so as to control discharging gap 6 to be spaced electric discharge, form spark cutting.
Wire cutting is carried out by traditional Wire EDM high-frequency circuit to have as a drawback that：
1st, utilization rate of electrical is extremely low, is 25% or so, and about 75% electric energy becomes heat waste in current-limiting resistance in vain
Fall；
2nd, floating voltage is difficult to improve, because while improving floating voltage, current-limiting resistance power consumption presses Ohm's law relation
Increase, utilization rate of electrical further declines, therefore discharging gap can not be widened, electric discharge midway short circuit is changed into regular operating mode, most
" electric discharge success rate " is extremely difficult to more than 90% eventually, and cutting efficiency is low；
3rd, because discharging gap is narrow, when larger thickness workpiece is cut, chip removal is not smooth, and chip removal is carried out between can only taking many times of arteries and veins,
Therefore pulse frequency is low, therefore cutting efficiency is also decreased；
4th, when fly-cutting is made, because peak point current is small, can only burn to improve cutting efficiency using big pulsewidth, it melts
Hole is big and shallow, and rough surface is only used for roughing；
5th, because pulsewidth is big during fly-cutting, the molybdenum filament most of the time is in desiccation, and molybdenum filament loss is serious.
Utility model content
The utility model provides a kind of without hindrance high-frequency circuit of wire cutting, which overcomes the existing skill described in background technology
The deficiency of art.
The utility model solves the technical scheme that its technical problem used：
A kind of without hindrance high-frequency circuit of wire cutting, it includes voltage-stabilizing constant-source, cuts workpiece, sparking electrode, radio frequency power amplifier
Pipe and high-frequency impulse output circuit, the positive terminal that the voltage-stabilizing constant-source has positive terminal, negative pole end, the voltage-stabilizing constant-source connect
Cutting workpiece is connect, the negative pole end ground connection of the voltage-stabilizing constant-source simultaneously connects sparking electrode after connecting the radio frequency power amplifier pipe, the height
Frequency impulse output circuit connects the control end of the radio frequency power amplifier pipe to control the conducting of the radio frequency power amplifier pipe and end.
Among one embodiment：Also include the first diode, the voltage-stabilizing constant-source also has feedback end, the one or two pole
Pipe is connected between the sparking electrode and the feedback end of voltage-stabilizing constant-source and forms continuous current circuit.
Among one embodiment：Also include the second diode, second diode be connected to sparking electrode with cutting workpiece it
Between formed discharging gap in ion reset loop.
Among one embodiment：The voltage-stabilizing constant-source is voltage adjustable source.
Among one embodiment：The radio frequency power amplifier pipe is IGBT power tubes or MOS power tubes.
Among one embodiment：The sparking electrode is molybdenum filament electrode.
Compared with background technology, it has the following advantages that the technical program：
1st, cancel current-limiting resistance, 75% electric energy can be saved, energy-saving effect is obvious.
2nd, conventional power source is replaced with voltage-stabilizing constant-source, peak point current is no longer restricted, and cutting efficiency is increased substantially.
3rd, no longer worked in big pulsewidth form, while cutting efficiency is improved, surface roughness is greatly lowered.
4th, power supply floating voltage is the independently-controlled, can as needed adjust floating voltage value to control optimal discharge gap,
Reach chip removal most smooth；So as to improve electric discharge success rate.
5th, discharging gap is controllable can improve molybdenum filament cooling condition, coordinate small pulsewidth, can greatly reduce molybdenum filament dry combustion method
Time, the molybdenum filament proportion of goods damageds significantly decline.
6th, by continuous current circuit, in end-of-pulsing, can be rapidly the energy feedback stored in discharge loop to electricity
Source, while forming reversed electric field in discharging gap by ion reset loop, the ion in forced discharge gap resets, and returns to absolutely
Edge state, has effectively prevented " face arc " phenomenon, strengthens the stability of processing.
7. the without hindrance high-frequency circuit topology of wire cutting described in the utility model is simple, ingenious, the linear cutter effect for reaching
Fruit is significantly.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is the traditional Wire EDM high-frequency circuit figure described in background technology.
Fig. 2 is the without hindrance high-frequency circuit figure of wire cutting described in the present embodiment.
Specific embodiment
Refer to Fig. 2, a kind of without hindrance high-frequency circuit of wire cutting, it includes voltage-stabilizing constant-source 11, cuts workpiece 12, electric discharge
Electrode 13, radio frequency power amplifier pipe 14 and high-frequency impulse output circuit (not shown), the voltage-stabilizing constant-source 11 have positive terminal,
Negative pole end, the positive terminal connection cutting workpiece 12 of the voltage-stabilizing constant-source 11, the negative pole end ground connection of the voltage-stabilizing constant-source 11 is simultaneously
Sparking electrode 13 is connected after connecting the radio frequency power amplifier pipe 14, the high-frequency impulse output circuit connects the control of the radio frequency power amplifier pipe 14
End processed is controlling the conducting of the radio frequency power amplifier pipe 14 with cut-off.Discharging gap is formed between the cutting workpiece 12 and sparking electrode 13
15, the voltage-stabilizing constant-source 11, cutting workpiece 12, composition electric discharge between discharging gap 15, sparking electrode 13, radio frequency power amplifier pipe 14
Loop, the pulse signal exported by the high-frequency impulse output circuit, the break-make of control radio frequency power amplifier pipe 14, so as to control the electric discharge
The break-make in loop, the surfacing of spark discharge melt cut workpiece is formed in discharging gap 15, completes wire cutting.
Preferably, the wire cutting high-frequency circuit also includes the first diode 16, and the voltage-stabilizing constant-source 11 also has anti-
Feedback end, first diode 16 is connected to and afterflow time is formed between the sparking electrode 13 and the feedback end of voltage-stabilizing constant-source 11
Road, promptly can return the residual amount of energy stored in discharge loop in the pulse end of output of high-frequency impulse output circuit
It is fed in voltage-stabilizing constant-source 11, improves processing stability.
Preferably, the wire cutting high-frequency circuit also includes the second diode 17, and second diode 17 is connected to electric discharge electricity
The ion reset loop in discharging gap 15 is formed between pole 15 and cutting workpiece 12, reverse electricity can be formed in discharging gap 15
, the ion in forced discharge gap 15 resets, and discharging gap 15 is returned to state of insulation, prevents " face arc " phenomenon, improves
Processing stability.
The voltage-stabilizing constant-source 11 is independently received for the floating voltage of voltage adjustable source, the i.e. voltage-stabilizing constant-source
Control, can as needed adjust floating voltage value to control optimal discharge gap, and it is most smooth to reach chip removal, improve electric discharge success rate.
The radio frequency power amplifier pipe 14 can be IGBT power tubes, MOS power tubes etc..
Sparking electrode 13 described in the present embodiment uses molybdenum filament electrode.
The above, only the utility model preferred embodiment, therefore can not according to this limit the utility model implementation
Scope, i.e., the equivalence changes made according to the utility model the scope of the claims and description and modification, all should still belong to this practicality new
In the range of type covers.
Claims (6)
1. the without hindrance high-frequency circuit of a kind of wire cutting, it is characterised in that：Including voltage-stabilizing constant-source, workpiece is cut, sparking electrode is high
Frequency power tube and high-frequency impulse output circuit, the voltage-stabilizing constant-source have positive terminal, negative pole end, and the voltage-stabilizing constant-source is just
Extreme connection cutting workpiece, the negative pole end ground connection of the voltage-stabilizing constant-source simultaneously connects electric discharge electricity after connecting the radio frequency power amplifier pipe
Pole, the high-frequency impulse output circuit connects the control end of the radio frequency power amplifier pipe to control the conducting of the radio frequency power amplifier pipe and end.
2. the without hindrance high-frequency circuit of a kind of wire cutting according to claim 1, it is characterised in that：Also include the first diode,
The voltage-stabilizing constant-source also has feedback end, and first diode is connected to the feedback of the sparking electrode and voltage-stabilizing constant-source
Continuous current circuit is formed between end.
3. the without hindrance high-frequency circuit of a kind of wire cutting according to claim 1 and 2, it is characterised in that：Also include the two or two pole
Pipe, second diode is connected between sparking electrode and cutting workpiece the ion reset loop formed in discharging gap.
4. the without hindrance high-frequency circuit of a kind of wire cutting according to claim 1, it is characterised in that：The voltage-stabilizing constant-source is
Voltage adjustable source.
5. the without hindrance high-frequency circuit of a kind of wire cutting according to claim 1, it is characterised in that：The radio frequency power amplifier pipe is
IGBT power tubes or MOS power tubes.
6. the without hindrance high-frequency circuit of a kind of wire cutting according to claim 1, it is characterised in that：The sparking electrode is molybdenum filament
Electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621233752.3U CN206286678U (en) | 2016-11-17 | 2016-11-17 | A kind of without hindrance high-frequency circuit of wire cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621233752.3U CN206286678U (en) | 2016-11-17 | 2016-11-17 | A kind of without hindrance high-frequency circuit of wire cutting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206286678U true CN206286678U (en) | 2017-06-30 |
Family
ID=59099286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621233752.3U Expired - Fee Related CN206286678U (en) | 2016-11-17 | 2016-11-17 | A kind of without hindrance high-frequency circuit of wire cutting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206286678U (en) |
-
2016
- 2016-11-17 CN CN201621233752.3U patent/CN206286678U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100577335C (en) | Numerical control double-power mode multifunctional impulsing power source for electrospark wire-electrode cutting processing | |
| CN112636592B (en) | Novel single-cycle control method of electric spark pulse power supply | |
| CN201201083Y (en) | Duplicate supply mode pulse power source for numerical control electrospark wire-electrode cutting | |
| CN101318240A (en) | Numerical control sopulse power source for wire-electrode cutting processing | |
| CN104028861B (en) | A kind of metal-ceramic FGM spark machined adaptive fuzzy control method step by step | |
| CN103056461B (en) | High-frequency impulse power supply of electric spark texturing system | |
| CN201175797Y (en) | High-low pressure composite pulse power source for processing small holes by electrical spark method | |
| CN109352103B (en) | Large-current multi-time cutting method for high-speed reciprocating wire-moving electrospark wire-electrode cutting | |
| CN201235432Y (en) | Numerical control current pulse power source for electrospark wire-electrode cutting machining | |
| CN209867602U (en) | High-efficient processing structure of spark-erosion wire cutting multichannel discharge | |
| CN206286678U (en) | A kind of without hindrance high-frequency circuit of wire cutting | |
| CN202271058U (en) | High-frequency encoding oscillating plate | |
| CN201467083U (en) | Two-stage pulse-width-limited precise-discharge machining pulse power supply | |
| CN207039482U (en) | The nanosecond class pulse generator for EDM system of Wire EDM | |
| CN101579761B (en) | Two-stage limited pulse width precision electrical discharge pulse power source | |
| CN107332459B (en) | Nanosecond pulse power supply system for wire-cut electric discharge machining and control method | |
| CN104107967A (en) | Intelligent-control high frequency pulse power supply | |
| CN102568983B (en) | A kind of biswitch grid-controlled TWT modulator based on metal-oxide-semiconductor | |
| CN200966036Y (en) | Wire-cut double circuit pulse power supply | |
| CN109967807A (en) | A kind of Wire EDM multi-channel discharge highly-efficient processing structure and its method | |
| CN110802290A (en) | Electric spark wire cutting unobstructed pulse power supply | |
| CN201211583Y (en) | Electric spark machining impulse power source capable of reducing machining electrode loss | |
| CN203371140U (en) | Intelligent control high frequency pulse power supply | |
| CN206898515U (en) | A kind of electric spark three-dimensional tunnel hole processing device | |
| CN111558752B (en) | Slow-speed wire-walking pulse power supply control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170630 Termination date: 20181117 |