CN102528230B - Intelligent gas shielded welding converter - Google Patents
Intelligent gas shielded welding converter Download PDFInfo
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- CN102528230B CN102528230B CN201110458985.9A CN201110458985A CN102528230B CN 102528230 B CN102528230 B CN 102528230B CN 201110458985 A CN201110458985 A CN 201110458985A CN 102528230 B CN102528230 B CN 102528230B
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- secondary filtering
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Abstract
The invention relates to an intelligent gas shielded welding converter which comprises an input end, an output end, a rectifier circuit, a first filtering circuit, a secondary filtering circuit and an LM three-terminal voltage-stabilizing and current-stabilizing circuit, wherein anode and cathode of the input end are respectively connected with the anode and cathode of an inverter welding machine; the input end is connected with the rectifier circuit; the rectifier circuit is connected with the first filtering circuit; the first filtering circuit is connected with the secondary filtering circuit; the secondary filtering circuit is connected with a voltage-stabilizing circuit; a first-level voltage-stabilizing circuit is formed by the voltage-stabilizing circuit and the secondary filtering circuit; the output end of the converter is arranged on the output side of the first-level voltage-stabilizing circuit; the anode and the cathode of the output end of the converter are connected with a welding gun and a to-be-welded workpiece; and the output side of the first-level voltage-stabilizing circuit is connected with an aspirated controlled solenoid valve. The intelligent gas shielded welding converter can meet the requirements of manual welding and gas shielded welding at the same time and is excellent in applicability.
Description
Technical field
The present invention relates to a kind of welding machine, especially a kind of converter that is simultaneously applicable to the gentle guarantor's weldering of manual electric arc welding.
Background technology
Common inverter type welder can only use as manual electric arc welding, and existing common inverter type welder adopts Voltage pulsating direct-current supply;
MIG gas is protected weldering, and to be that one has molten drop controlled and evenly reliable, the gas metal-arc welding that the Weld-little that splashes the is attractive in appearance device that picks.Mainly contain two part compositions: the source of welding current and control system.The source of welding current is the major part of arc welder, is a kind of device that welding arc is provided to electric energy.Control system comprises stable wire feed system and adjustable technological parameter system, can control heat input and appearance of weld, can realize the precision control that droplet transfer and arc length change.
In view of the power mode difference that two kinds of welding manners adopt, cause two kinds of different occasions need to configure power supply separately, do not there is versatility.
Summary of the invention
In existing welding machine, can not to meet the gentle guarantor of manual welding simultaneously and weld two different occasions, deficiency poor for applicability in order to overcome, the invention provides and a kind ofly can meet the gentle guarantor of manual welding simultaneously and weld needs, the good Intelligent gas shielded welding converter of applicability.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of Intelligent gas shielded welding converter, described converter comprises input and output, the both positive and negative polarity of described input is connected with the both positive and negative polarity of inverter type welder respectively, described converter also comprises rectification circuit, a filter circuit, secondary filtering circuit, mu balanced circuit and LM three-terminal voltage-stabilizing current stabilization circuit, described input is connected with rectification circuit, described rectification circuit is connected with a filter circuit, a described filter circuit is connected with secondary filtering circuit, described secondary filtering circuit is connected with mu balanced circuit, described mu balanced circuit and secondary filtering circuit form one-level mu balanced circuit, the outlet side of described one-level mu balanced circuit is the output of converter, and the both positive and negative polarity of the output of described converter is connected with welding gun, workpiece to be welded respectively, the outlet side of described one-level mu balanced circuit is connected with the magnetic valve of controlling of supplying gas, LM three-terminal voltage-stabilizing current stabilization circuit is connected with the speed control end of the wire-feed motor of welding gun.
Between a described filter circuit and secondary filtering circuit, electrothermal relay is installed.
Described LM three-terminal voltage-stabilizing current stabilization circuit is LM317 three-terminal voltage-stabilizing current stabilization circuit.
The output of described converter is connected with welding gun by filtering magnet ring inductance.
Brief description of the drawings
Fig. 1 is the structural representation of Intelligent gas shielded welding converter.
Fig. 2 is the circuit diagram of Intelligent gas shielded welding converter.
Fig. 3 is the connection diagram of Intelligent gas shielded welding converter and inverter type welder.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
See figures.1.and.2, a kind of Intelligent gas shielded welding converter, described converter 2 comprises input and output, described input just, negative pole respectively with inverter type welder 1 just, negative pole connects, described converter 2 also comprises rectification circuit, a filter circuit, secondary filtering circuit, Voltage stabilizing module and LM three-terminal voltage-stabilizing current stabilization circuit, described input is connected with rectification circuit, described rectification circuit is connected with a filter circuit, a described filter circuit is connected with secondary filtering circuit, described secondary filtering circuit is connected with mu balanced circuit, described Voltage stabilizing module and secondary filtering circuit form one-level mu balanced circuit, the outlet side of described one-level mu balanced circuit is the output of converter, and the both positive and negative polarity of the output of described converter is connected with welding gun, workpiece to be welded respectively, the outlet side of described one-level mu balanced circuit is connected with the magnetic valve of controlling of supplying gas, LM three-terminal voltage-stabilizing current stabilization circuit is connected with the speed control end of the wire-feed motor of welding gun.
Between a described filter circuit and secondary filtering circuit, electrothermal relay is installed.When temperature is during higher than 75 DEG C, disconnect relay, quit work.Described LM three-terminal voltage-stabilizing current stabilization circuit is LM317 three-terminal voltage-stabilizing current stabilization circuit, certainly, also can adopt the three-terminal voltage-stabilizing current stabilization circuit of other types.The output of described converter is connected with welding gun by filtering magnet ring inductance.
In the present embodiment, anodal 1-2, the negative pole 1-3 docking of inverter type welder converter anodal 2-8, negative pole 2-9; After inner SF38 (fast recovery diode 3A/600V) rectification lock item, produce stable direct current by inductance (22mH) and electrochemical capacitor (220uF/100V) filtering.After 5A electrothermal relay,
again pass through inductance(22mH), after electrochemical capacitor (220uF/100V) filtering, give transistor 2SC2751 and BU460,1W/10K and 1W/33V voltage-stabiliser tube (Voltage stabilizing module employing voltage-stabiliser tube) composition one-level mu balanced circuit;
The magnetic valve of supplying gas of air supply plant 4 is supplied with in one group of 2-7 voltage stabilizing of the outlet side of one-level mu balanced circuit, and another group of the outlet side of one-level mu balanced circuit is supplied with the 24V wire-feed motor of welding gun 3;
Wire-feed motor speed is adjustable is LM317 three-terminal voltage-stabilizing current stabilization circuit, and its composition is 1/2W resistance 10K+10K potentiometer, 240 Ω and 334,105 electric capacity compositions; Output connects welding gun, and loop by 2W/10 Ω resistance over the ground.
In the time that arc welding gun switch 3-1 presses work, produce a current potential 1/4W470 Ω resistance current limliting before 2W/10 Ω resistance, trigger triode BC33725, starts the magnetic valve of supplying gas and opens and supply gas.Fail safe diode when SF26 diode is LM317 overcurrent.
After the filtering magnet ring inductance that the ferrite bead that welding current is 2P44 by material behavior is made, supply with welding gun, modulated current need complete by inverter type welder.
With reference to Fig. 2, one group of parameter of the circuit of the present embodiment is as follows:
L01 is filtering magnet ring inductance 2P44, and L02 is inductance coil 22 μ H, and L03 is ribbon core inductance coil μ H, D01 is Quick-return diode SF38, D02 is Zener diode 1W/33V, and D04 is diode SF26, and D04 is LED, C01～C05 is electrochemical capacitor 100 μ F/100V, C06 is electrochemical capacitor 10 μ F, and C07 is that polarity free capacitor 334,08 is polarity free capacitor 105, J01 is electrothermal relay 5A, and J02 is welding gun gauge tap; Q01 is transistor ZCSC2751, and Q02 is transistor BU406, and Q03 is triode BC33725, R01 is resistance 1W/10KQ, R02 is resistance 470KQ, and R03 is resistance 0.5W/10KQ, and R04 is potentiometer 10KQ, R05 is resistance 240KQ, R06 is resistance 2W/10K Ω, and R07 is resistance 4.7KQ, and R08 is resistance 0.25W/470Q, IC01 is three-terminal voltage-stabilizing pipe LM317, magnetic valve DC24V.
In the present embodiment, the operation principle of converter 2 is pulsating dc voltages that inverter type welder 1 is exported, and by secondary rectifying and wave-filtering, then forming a basicly stable voltage source by discrete components such as transistors is converter power supply.The wire-feed motor of welding gun 3 is to adopt three terminal regulator LM317 power supply.Its feature is that the large voltage of output current is adjustable continuously, and the precision of voltage regulation is high, the little and constant pressure and flow of output ripple.Thereby reach stable wire feed system.Supply gas by solenoid control, in the time that arc welding gun switch 3-1 presses, electrical power running, owing to being added with 10 Europe resistance in electric motor loop, starts by this current potential the magnetic valve of supplying gas.Temperature measuring circuit is equipped with in inside, and the electrothermal relay converter of a 5A is housed in transistor heat sinks, and when internal temperature is spent higher than 75, holding circuit starts, and quits work.
Inverter type welder 1 is the commercial power access inverter type welder by our daily 220V or 380V, reduce voltage by inverter type welder by transformer again, strengthen electric current, utilize inverter type welder 1 VD, electric current, wire feed rate through Intelligent gas shielded welding converter 2 Butt welding guns regulates, reach gas and protect the welding effect of weldering, welding gun upper wire feeding hose speed is to be controlled by the regulator potentiometer on converter, and output current size is controlled by inverter type welder.The anodal 2-5 of converter output end is connected with welding gun 3, and converter output end negative pole 2-6, receives on the workpiece 5 that needs welding by weld clip 6, and power supply indicator 2-1, wire feed adjusting button 2-2, gas output end 2-3 and control interface 2-4 are installed on described converter 2.While welding carbon steel welding wire, need to connect CO2 gas simultaneously, if use is property of medicine welding wire, does not need to connect CO2 gas, but converter output end both positive and negative polarity must be exchanged.
Claims (4)
1. an Intelligent gas shielded welding converter, it is characterized in that: described converter comprises input and output, the both positive and negative polarity of described input is connected with the both positive and negative polarity of inverter type welder respectively, described converter also comprises rectification circuit, a filter circuit, secondary filtering circuit, mu balanced circuit and LM three-terminal voltage-stabilizing current stabilization circuit, described input is connected with rectification circuit, described rectification circuit is connected with a filter circuit, a described filter circuit is connected with secondary filtering circuit, described secondary filtering circuit is connected with mu balanced circuit, described mu balanced circuit and secondary filtering circuit form one-level mu balanced circuit, the outlet side of described one-level mu balanced circuit is the output of converter, and the both positive and negative polarity of the output of described converter is connected with welding gun, workpiece to be welded respectively, the outlet side of described one-level mu balanced circuit is connected with the magnetic valve of controlling of supplying gas, LM three-terminal voltage-stabilizing current stabilization circuit is connected with the speed control end of the wire-feed motor of welding gun.
2. Intelligent gas shielded welding converter as claimed in claim 1, is characterized in that: between a described filter circuit and secondary filtering circuit, electrothermal relay is installed.
3. Intelligent gas shielded welding converter as claimed in claim 1 or 2, is characterized in that: described LM three-terminal voltage-stabilizing current stabilization circuit is LM317 three-terminal voltage-stabilizing current stabilization circuit.
4. Intelligent gas shielded welding converter as claimed in claim 1 or 2, is characterized in that: the output of described converter is connected with welding gun by filtering magnet ring inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458985.9A CN102528230B (en) | 2011-12-20 | 2011-12-20 | Intelligent gas shielded welding converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458985.9A CN102528230B (en) | 2011-12-20 | 2011-12-20 | Intelligent gas shielded welding converter |
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| Publication Number | Publication Date |
|---|---|
| CN102528230A CN102528230A (en) | 2012-07-04 |
| CN102528230B true CN102528230B (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110458985.9A Expired - Fee Related CN102528230B (en) | 2011-12-20 | 2011-12-20 | Intelligent gas shielded welding converter |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115319226B (en) * | 2022-08-04 | 2024-04-05 | 吴忠市黄河电焊机有限公司 | Voltage stabilizing system and digital gas shielded welding machine with same |
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| CN201664807U (en) * | 2010-02-04 | 2010-12-08 | 深圳市富驰机电设备有限公司 | Control power circuit of inverter welding machine |
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| CN202639602U (en) * | 2011-12-20 | 2013-01-02 | 浙江武义旺峰工具有限公司 | Intelligent gas shield welding converter |
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2011
- 2011-12-20 CN CN201110458985.9A patent/CN102528230B/en not_active Expired - Fee Related
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| CN2496148Y (en) * | 2001-08-30 | 2002-06-19 | 余孟达 | Intelligent power converter |
| CN2768278Y (en) * | 2005-01-31 | 2006-03-29 | 中山市长青科技发展有限公司 | Power switching device for gas water heater |
| EP2176945A1 (en) * | 2007-08-10 | 2010-04-21 | Illinois Tool Works Inc. | Power supply configured to deliver ac welding-type power |
| CN201113466Y (en) * | 2007-09-13 | 2008-09-10 | 徐永全 | Automobile power source converter |
| CN201124282Y (en) * | 2007-09-29 | 2008-10-01 | 吕贤红 | Power supply circuit for inverter welding machine |
| CN201179586Y (en) * | 2007-11-15 | 2009-01-14 | 天津大学 | Double-wire AC-DC soldering controller |
| EP2107674A1 (en) * | 2008-04-01 | 2009-10-07 | GlacialTech., Inc. | Half-bridge LLC resonant converter with self-driven synchronous rectifiers |
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| CN201572992U (en) * | 2010-01-01 | 2010-09-08 | 苏运河 | No-load automatic stop power-saving controller of electric welding machine |
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| CN102528230A (en) | 2012-07-04 |
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Address after: 321200, No. six, No. 11 East Road, Tong Qin Hardware Machinery Industrial Park, Zhejiang, Wuyi Province Applicant after: ZHEJIANG WANGFENG ELECTRICAL APPLIANCES CO.,LTD. Address before: 321200, No. six, No. 11 East Road, Tong Qin Hardware Machinery Industrial Park, Zhejiang, Wuyi Province Applicant before: Zhejiang Wuyi Wangfeng Tool Co.,Ltd. |
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