CN201579532U - High-voltage arc striking circuit for plasma cutting machine and argon arc welder - Google Patents
High-voltage arc striking circuit for plasma cutting machine and argon arc welder Download PDFInfo
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- CN201579532U CN201579532U CN2009202844930U CN200920284493U CN201579532U CN 201579532 U CN201579532 U CN 201579532U CN 2009202844930 U CN2009202844930 U CN 2009202844930U CN 200920284493 U CN200920284493 U CN 200920284493U CN 201579532 U CN201579532 U CN 201579532U
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Abstract
The utility model discloses a high-voltage arc striking circuit for a plasma cutting machine and an argon arc welder, which comprises a step-up transformer. A secondary stage of the step-up transformer is respectively connected with a high-voltage coupling transformer and a low-frequency pulse forming and controlling circuit through a bridge rectifier circuit. The high-voltage arc striking circuit is reasonable in structure and good in working performance. The high-voltage arc striking circuit is a low-power pulse arc starting circuit of low frequency (lower than 100Hz) and high voltage (ranging from 10000V to 12000V), and greatly reduces possibility of interfering with CNC computer control systems because the arc striking circuit is low in low working frequency (which is only a thousandth of that of a high-frequency arc striking mode) and free of high-frequency spark dischargers, and can realize quick arc striking because instant breakdown capacity of high-voltage pulse is strong.
Description
Technical field:
The utility model relates to a kind of high-voltage arc strike circuit that is used for CUT and argon arc welding machine.
Background technology:
At present, the striking of general CUT and argon arc welding machine must rely on HF (3000V-10000V, the high-frequency impulse of 100-200KHZ) the cutting plasma arc that ignites, its fatal problem is exactly easily electronic equipment to be produced stronger electromagnetic interference, therefore, its use is restricted, particularly with the supporting use of CNC, be very easy to disturb the operate as normal of control computer, and Numerical control cutting is the fast and very large production technology of application quantity of development at present. utilize non-high frequency (WITHOUT HF PILOT) technology, the problems referred to above of dealing with problems effectively, the electromagnetic interference of CNC will be reduced greatly, but be that non-high frequency contact starting process is by separating and form electric arc by being shorted between the promotion electrode of air-flow and nozzle, so its striking reaction time is slower, generally having the hysteresis about 0.5S; For require the striking reaction speed faster occasion can not adapt to.
Summary of the invention:
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, the high-voltage arc strike circuit that is used for CUT and argon arc welding machine of favorable working performance.
Technical solution of the present utility model is:
A kind of high-voltage arc strike circuit that is used for CUT and argon arc welding machine is characterized in that: comprise step-up transformer, secondary formation with high pressure coupling transformer and low-frequency pulse respectively through bridge rectifier of step-up transformer is connected with control circuit.
Low-frequency pulse forms and control circuit comprises first controllable silicon, and first controllable silicon is connected with the control circuit of the control first controllable silicon work.
The utility model is rational in infrastructure, favorable working performance.The utility model is a kind of low power low frequency (being lower than 100Hz) high pressure (10000-12000V) pulse arc ignition circuit, because operating frequency low (only be high-frequency arc strike mode 1/1000), and there is not the high-frequency spark discharger, greatly reduce possibility for the interference of CNC computerized control system, and the moment breakdown capability of high-voltage pulse is strong, so can realize quick striking.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the configuration diagram of an embodiment of the utility model.
The specific embodiment:
A kind of high-voltage arc strike circuit that is used for CUT and argon arc welding machine comprises step-up transformer T1, and secondary formation with high pressure coupling transformer T2 and low-frequency pulse respectively through bridge rectifier 1 of step-up transformer is connected with control circuit 2.
Low-frequency pulse forms and control circuit comprises the first controllable silicon V1, and first controllable silicon is connected with the control circuit of the control first controllable silicon work.
Also have resistance R 1, R2, capacitor C 1, C2, C3, diode V4 etc. among the figure.
Its operation principle and process are as follows:
When the control circuit of machine applies an AC48V at input (step-up transformer), behind the alternating current of 50Hz, rise to transformer secondary output output about AC630V by step-up transformer T1, be connected with control circuit with low-frequency pulse formation with the elementary of high pressure coupling transformer T2 respectively based on V1 (controllable silicon BT151) through bridge rectifier; After the voltage at resistance R T1 two ends rises to certain value, controllable silicon V1 conducting, trigger controllable silicon V1 by controllable silicon V2 after controllable silicon V5 and the triode V3 conducting, controllable silicon V1 conducting provides load circuit for the V6-V9 bridge rectifier, thereby elementary (1T) conducting of high pressure coupling transformer T2, the high pressure output of 22 times of boost in voltage (about about 12000V) is connected to the reactor and the output " " end (being rifle gang socket) of CUT and argon arc welding machine, burning torch and argon-arc welding gun breakdown electrode and nozzle (plasma) or tungsten electrode and the workpiece gap electric arc that ignites can be provided, controllable silicon V1 closes when input 50HZ (being 100HZ after the rectification) waveform zero passage, repeat a process again up to next cycle, form a low-frequency high-voltage impulse train, reach the effect of the electric arc that ignites.
For high pressure coupling transformer T2, use closed ferrite bead (H90*60*30), primary and secondary uses lead or other conductors respectively, with the even coiling of ratio of elementary 1 circle and secondary 22 circles.
Claims (2)
1. high-voltage arc strike circuit that is used for CUT and argon arc welding machine is characterized in that: comprise step-up transformer, secondary formation with high pressure coupling transformer and low-frequency pulse respectively through bridge rectifier of step-up transformer is connected with control circuit.
2. the high-voltage arc strike circuit that is used for CUT and argon arc welding machine according to claim 1 is characterized in that: low-frequency pulse forms and control circuit comprises first controllable silicon, and first controllable silicon is connected with the control circuit of the control first controllable silicon work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202844930U CN201579532U (en) | 2009-12-25 | 2009-12-25 | High-voltage arc striking circuit for plasma cutting machine and argon arc welder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202844930U CN201579532U (en) | 2009-12-25 | 2009-12-25 | High-voltage arc striking circuit for plasma cutting machine and argon arc welder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201579532U true CN201579532U (en) | 2010-09-15 |
Family
ID=42721526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202844930U Expired - Fee Related CN201579532U (en) | 2009-12-25 | 2009-12-25 | High-voltage arc striking circuit for plasma cutting machine and argon arc welder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201579532U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179596A (en) * | 2011-05-13 | 2011-09-14 | 杭州恒湖科技有限公司 | Arc striking circuit for argon arc welding |
| CN102218579A (en) * | 2011-06-17 | 2011-10-19 | 上海威特力焊接设备制造股份有限公司 | Environment-friendly high-frequency arc ignition generator |
| CN102625560A (en) * | 2012-03-10 | 2012-08-01 | 新疆天业（集团）有限公司 | Arc-striking method for plasma torches |
| CN103350273A (en) * | 2013-06-18 | 2013-10-16 | 嘉兴力德数控科技有限公司 | Arc strike starting circuit of plasma cutting machine |
| CN103692072A (en) * | 2013-12-18 | 2014-04-02 | 华南理工大学 | High-power type laser plasma arc cutting system |
-
2009
- 2009-12-25 CN CN2009202844930U patent/CN201579532U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102179596A (en) * | 2011-05-13 | 2011-09-14 | 杭州恒湖科技有限公司 | Arc striking circuit for argon arc welding |
| CN102218579A (en) * | 2011-06-17 | 2011-10-19 | 上海威特力焊接设备制造股份有限公司 | Environment-friendly high-frequency arc ignition generator |
| CN102625560A (en) * | 2012-03-10 | 2012-08-01 | 新疆天业（集团）有限公司 | Arc-striking method for plasma torches |
| CN103350273A (en) * | 2013-06-18 | 2013-10-16 | 嘉兴力德数控科技有限公司 | Arc strike starting circuit of plasma cutting machine |
| CN103692072A (en) * | 2013-12-18 | 2014-04-02 | 华南理工大学 | High-power type laser plasma arc cutting system |
| CN103692072B (en) * | 2013-12-18 | 2016-03-02 | 华南理工大学 | High-power class laser plasma arc diced system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nantong Free Electro-Mechanical Co., Ltd. Assignor: Wu Jianzhong Contract record no.: 2011320000050 Denomination of utility model: High-voltage arc striking circuit for plasma cutting machine and argon arc welder Granted publication date: 20100915 License type: Exclusive License Record date: 20110221 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20131225 |