CN102179597B - Arc stabilizer of AC argon arc welding machine - Google Patents
Arc stabilizer of AC argon arc welding machine Download PDFInfo
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- CN102179597B CN102179597B CN 201110086197 CN201110086197A CN102179597B CN 102179597 B CN102179597 B CN 102179597B CN 201110086197 CN201110086197 CN 201110086197 CN 201110086197 A CN201110086197 A CN 201110086197A CN 102179597 B CN102179597 B CN 102179597B
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- arc
- voltage
- welding machine
- argon arc
- current
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000003466 welding Methods 0.000 title claims abstract description 30
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 20
- 239000003381 stabilizer Substances 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 abstract description 6
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000010891 electric arc Methods 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
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- Generation Of Surge Voltage And Current (AREA)
Abstract
The invention relates to an arc stabilizer of an AC argon arc welding machine. The arc stabilizer comprises a voltage detection module, a boosting transformer and a rectifier module, wherein the voltage detection module is used for detecting the output voltages of the two poles of the AC argon arc welding machine; the boosting transformer is used for enhancing auxiliary voltages supplied to both ends of an IGBT (Insulated Gate Bipolar Transistor); the rectifier module is used for rectifying AC voltages output by the boosting transformer into DC voltages; and when the voltage detection module judges that the AC argon arc welding machine is in a welding state, the boosting transformer generates low voltages to be superposed to the positive and the negative ends of a secondary rectifier circuit of the AC argon arc welding machine so as to prevent the AC argon arc welding machine from arc interruption during reversing. The invention solves the problems of unstable AC arc and easy arc interruption under low currents by adopting a low voltage superposition method; and in addition, the arc stabilizer can stabilize the AC arc by being matched with the AC argon arc welding machine and realize the uninterrupted arc during welding at AC 10 A.
Description
Technical field
The present invention relates to welding technology field, relate to especially a kind of device that prevents the alternating-current argon arc welder current interruption.
Background technology
When the metals such as welding of aluminum, magnesium and alloy thereof, the oxide-film of one deck densification is arranged due to the surface of aluminium, magnesium metal and alloy thereof, usually adopt ac tungsten inert gases welding.The polar cycle variation of electric current during the ac tig welding machine welding.Zero passage is reverse when positive and negative half-wave replaces, arc space generation deionization and arc process again, especially when being changed to negative half-wave by positive half-wave at every turn, be namely that the negative sense aluminium sheet is when bearing variation when electric current by tungsten electrode, because weldment electron emission ability makes electric arc resume combustion difficulty, the voltage of required striking again is very high, and the floating voltage of power supply is not enough to the pilot arc continuous burning, cause electric arc unstable, especially at welding current during less than 50A.In order to solve the problem of zero passage resume combustion, just the arc stabilizer that electric arc is ignited again need to be arranged, so that electric arc continues to ignite and reaches the continous-stable burning.
Method relatively more commonly used is to adopt the overlapped high-frequency high-tension pulse to bring the stability that improves AC-TIG WELDING source of welding current electric arc at present.But this method will be brought High-frequency Interference harm, and human body and equipment are had very large injury.
Summary of the invention
The object of the invention is to solve the alternating current arc shakiness, the problem of the easy current interruption of little electric current.
A kind of arc-stabilizing device of alternate comprises: voltage detection module, for detection of the output voltage at alternating-current argon arc welder the two poles of the earth; Step-up transformer is used for improving the boost voltage that is added in the insulated gate bipolar transistor IGBT two ends; And rectification module, the ac voltage rectifier that is used for described step-up transformer output is DC voltage; When described voltage detection module judgement welding machine was in welded condition, described step-up transformer produced the be added to positive and negative terminal of alternating-current argon arc welder secondary rectification circuit of low-voltage, prevents AC welding set current interruption when commutation.
Wherein, described voltage detection module comprises commutation diode, dividing potential drop voltage-stabiliser tube, current-limiting resistance and relay.
Wherein, described step-up transformer utilizes the main transformer secondary voltage of welding machine, produces the superimposed voltage of DC200V～DC400V through boosting.
Wherein, described rectification module comprises commutation diode, the RC absorbing circuit.
It is unstable that the present invention adopts the method for stack low-voltage to solve alternating current arc, the problem of the easy current interruption of little electric current.Support the use with alternating-current argon arc welder and can stablize alternating current arc, and can reach not current interruption when exchanging the 10A welding.
Description of drawings
Can be by following detailed Description Of The Invention and appended graphic being further understood about the advantages and spirit of the present invention.
Fig. 1 is arc-stabilizing device of alternate circuit theory diagrams of the present invention;
Fig. 2 is alternating-current argon arc welder circuit side connector block diagram of the present invention;
Fig. 3 is alternating-current argon arc welder circuit theory diagrams of the present invention.
The specific embodiment
Describe specific embodiments of the invention in detail below in conjunction with accompanying drawing.
As shown in Figure 1, the arc stabilizer in alternating-current argon arc welder of the present invention is by voltage detecting circuit 1, step- up transformer 2,3 three parts of rectification circuit form, and voltage detecting circuit 1 comprises commutation diode D3, voltage-stabiliser tube ZD1, single-pole double throw relay J 1, resistance R 9 and capacitor C 3; Step-up transformer 2, withstand voltage between primary and secondary is AC3000V; Rectification circuit 3 comprises 2 commutation diode D1, D2,2 capacitor C 1, C2,2 resistance R 1, R2,6 current-limiting resistance R3-R8.When voltage detecting circuit 1 has detected voltage less than floating voltage, relay J 1 is failure to actuate, and the high pressure of step-up transformer 2 output is added on the insulated gate bipolar transistor IGBT of alternating-current argon arc welder secondary power frequency inversion through continuing after commutation diode D1, D2 rectification.Can effectively stop like this alternating current commutation or other reason cause current interruption.
As shown in Figure 2, the input AC electricity of alternating-current argon arc welder of the present invention becomes direct current through a rectification, after the alternating current that becomes high frequency through an inversion is again received main transformer B1 elementary, become the alternating current of low-voltage and high-current, pass through again secondary rectification, again become direct current, because this welding machine is AC machine, so also will become interchange through inversion for the second time.Arc stabilizer is the voltage that gathers main transformer in whole transfer process, is added in the two ends after secondary rectification circuit after boosting, namely before power frequency inversion for the second time.
As shown in Figure 3, two plugs of the input TR1 of arc-stabilizing device of alternate of the present invention and TR2 respectively with secondary being connected of AC-DC argon arc welding machine main transformer B1.When the welder switch closure, when welding machine was operated in Light Condition, main transformer B1 is elementary an input voltage, and secondary induced voltage is the 34V left and right after by rectification, through voltage-stabiliser tube ZD1 dividing potential drop, the voltage at relay J 1 two ends reaches the operation voltage of relay, and the elementary input of step-up transformer is cut off in relay J 1 adhesive, therefore stable-pressure device is not worked, do not have boost voltage to add, can guarantee that like this floating voltage of welding machine is constant, in the safe range of GB regulation.when welding machine is operated in welded condition, output voltage is lower than floating voltage, the elementary input voltage that still has of main transformer B1, secondary induced voltage passes through the voltage-stabiliser tube dividing potential drop after by diode rectification again, the voltage at relay two ends does not reach the operation voltage of relay, relay J 1 is failure to actuate, therefore stable-pressure device work, i.e. secondary two ends of receiving respectively the AC-DC argon arc welding machine main transformer, step-up transformer T1 elementary two ends in the device, the voltage of T1 level output of step-up transformer is the 300V left and right according to the no-load voltage ratio of transformer as can be known, through diode D1 and D2 rectification, after resistance R C resistance capaciting absorpting circuit and six current-limiting resistances, this low-voltage is added on the insulated gate bipolar transistor IGBT of secondary inverting, just in time satisfy the shortcoming of undertension when exchanging commutation, the assurance alternating current arc is stablized sustained combustion.
Described in this specification is preferred embodiment of the present invention, and above embodiment is only in order to illustrate technical scheme of the present invention but not limitation of the present invention.All those skilled in the art all should be within the scope of the present invention under this invention's idea by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (3)
1. arc-stabilizing device of alternate comprises:
Voltage detection module is for detection of the output voltage at alternating-current argon arc welder the two poles of the earth;
Step-up transformer is used for improving the boost voltage that is added in the insulated gate bipolar transistor IGBT two ends; And
Rectification module, the ac voltage rectifier that is used for described step-up transformer output is DC voltage;
When described voltage detection module judgement welding machine is in welded condition, described step-up transformer utilizes the main transformer secondary voltage of welding machine, produce the superimposed voltage of DC200V ~ DC400V through boosting, continue to be added to after the rectification positive and negative terminal of alternating-current argon arc welder secondary rectification circuit prevents AC welding set current interruption when commutation.
2. arc-stabilizing device of alternate according to claim 1, is characterized in that, described voltage detection module comprises commutation diode, dividing potential drop voltage-stabiliser tube, current-limiting resistance and relay.
3. arc-stabilizing device of alternate according to claim 1, is characterized in that, described rectification module comprises commutation diode, the RC absorbing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110086197 CN102179597B (en) | 2011-04-07 | 2011-04-07 | Arc stabilizer of AC argon arc welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110086197 CN102179597B (en) | 2011-04-07 | 2011-04-07 | Arc stabilizer of AC argon arc welding machine |
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| Publication Number | Publication Date |
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| CN102179597A CN102179597A (en) | 2011-09-14 |
| CN102179597B true CN102179597B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110086197 Expired - Fee Related CN102179597B (en) | 2011-04-07 | 2011-04-07 | Arc stabilizer of AC argon arc welding machine |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962548B (en) * | 2012-11-22 | 2015-04-08 | 上海广为焊接设备有限公司 | Pulse arc-stabilizing device of inverting alternating-current square-wave argon tungsten-arc welding machine |
| CN105414719B (en) * | 2016-01-27 | 2017-10-20 | 刘劲松 | A kind of ultralow pressure argon arc welding machine |
| CN107442896B (en) * | 2016-05-30 | 2020-07-14 | 上海沪工焊接集团股份有限公司 | Inverter type welding machine control circuit |
| CN107570840B (en) * | 2017-10-09 | 2019-06-14 | 上海沪工焊接集团股份有限公司 | Beam controlling system suitable for alternating-current argon arc welder |
| CN110768565A (en) * | 2019-11-28 | 2020-02-07 | 唐山松下产业机器有限公司 | Power supply method and device, power supply and electronic equipment |
| CN114070117B (en) * | 2021-11-19 | 2022-05-20 | 杭州凯尔达电焊机有限公司 | Alternating current reversing pilot arc circuit and alternating current welding power supply |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1068987A (en) * | 1991-07-27 | 1993-02-17 | 成都科技大学 | Arc stabilizer of intermediate frequency |
| JP4725762B2 (en) * | 2003-03-10 | 2011-07-13 | 株式会社安川電機 | Control method of arc welder |
| JP5372333B2 (en) * | 2007-03-08 | 2013-12-18 | 株式会社ダイヘン | AC / DC dual-purpose arc welding machine |
| CN100586631C (en) * | 2007-11-15 | 2010-02-03 | 华南理工大学 | Embedded digitalization multifunctional inversion type flexible switch arc-welding power supply based on ARM |
| CN202079341U (en) * | 2011-04-07 | 2011-12-21 | 上海威特力焊接设备制造股份有限公司 | Arc-stabilizing device of alternate-current argon arc welder |
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Denomination of invention: Arc stabilizer of AC argon arc welding machine Effective date of registration: 20161123 Granted publication date: 20131106 Pledgee: Bank of Shanghai Limited by Share Ltd. Pudong branch Pledgor: SHANGHAI WTL WELDING EQUIPMENT MANUFACTURE Co.,Ltd. Registration number: 2013310000084 |
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Date of cancellation: 20171201 Granted publication date: 20131106 Pledgee: Bank of Shanghai Limited by Share Ltd. Pudong branch Pledgor: SHANGHAI WTL WELDING EQUIPMENT MANUFACTURE Co.,Ltd. Registration number: 2013310000084 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 |
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