CN102528230A - Intelligent gas shielded welding converter - Google Patents
Intelligent gas shielded welding converter Download PDFInfo
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- CN102528230A CN102528230A CN2011104589859A CN201110458985A CN102528230A CN 102528230 A CN102528230 A CN 102528230A CN 2011104589859 A CN2011104589859 A CN 2011104589859A CN 201110458985 A CN201110458985 A CN 201110458985A CN 102528230 A CN102528230 A CN 102528230A
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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 applicable to the gentle guarantor's weldering of manual electric arc welding simultaneously.
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;
It is that a kind of to have a molten drop controlled and evenly reliable that MIG gas is protected weldering, the gas metal-arc welding that the Weld-little that splashes the is attractive in appearance device of meeting sb. at the airport.Mainly containing two parts forms: 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 electric energy.The control system comprises stable wire feed system and adjustable technological parameter system, can control hot input quantity and appearance of weld, can realize the precision control that droplet transfer and arc length change.
The power mode that adopts in view of two kinds of welding manners is different, causes two kinds of different occasions need dispose power supply separately, does not have versatility.
Summary of the invention
Can not to satisfy the gentle guarantor of manual welding in the existing welding machine simultaneously and weld two different occasions, deficiency poor for applicability in order to overcome, the invention provides and a kind ofly can satisfy simultaneously that the gentle guarantor of manual welding welds needs, the good intelligent gas of applicability is protected the weldering converter.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of intelligent gas is protected the weldering converter; Said converter comprises input and output; The both positive and negative polarity of said input is connected with the both positive and negative polarity of inverter type welder respectively, and said converter comprises that also rectification circuit, filter circuit, secondary filtering circuit, mu balanced circuit and a LM three-terminal voltage-stabilizing are surely wanted, applicability is good.
Description of drawings
Fig. 1 is the theory diagram that intelligent gas is protected the weldering converter.
Fig. 2 is the circuit diagram that intelligent gas is protected the weldering converter.
Fig. 3 is the sketch map that is connected that intelligent gas is protected weldering converter and inverter type welder.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described.
See figures.1.and.2; A kind of intelligent gas is protected the weldering converter, and said converter 2 comprises input and output, and the positive and negative electrode of said input is connected with the positive and negative electrode of inverter type welder 1 respectively; Said converter 2 also comprises rectification circuit, filter circuit, secondary filtering circuit, Voltage stabilizing module and a LM three-terminal voltage-stabilizing current stabilization circuit; Said input is connected with rectification circuit, and said rectification circuit is connected with a filter circuit, and a said filter circuit is connected with the secondary filtering circuit; Said secondary filtering circuit is connected with mu balanced circuit, and said Voltage stabilizing module and secondary filtering circuit form the one-level mu balanced circuit; The outlet side of said one-level mu balanced circuit is the output of converter, and the both positive and negative polarity of the output of said converter is connected with welding gun, workpiece to be welded respectively; The outlet side of said one-level mu balanced circuit is connected with the magnetic valve of the control of supplying gas; LM three-terminal voltage-stabilizing current stabilization circuit is connected with the speed controlling end of the wire-feed motor of welding gun.
Between a said filter circuit and the secondary filtering circuit electrothermal relay is installed.When temperature is higher than 75 ℃, break off relay, quit work.Said LM three-terminal voltage-stabilizing current stabilization circuit is a 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 said converter is connected with welding gun through filtering magnet ring inductance.
In the present embodiment, the anodal 1-2 of inverter type welder, the anodal 2-8 of negative pole 1-3 butt joint converter, negative pole 2-9; Inner SF38 (fast recovery diode 3A/600V) rectification lock back produces stable direct current through inductance (22mH) and electrochemical capacitor (220uF/100V) filtering.Through the 5A current circuit; Said input is connected with rectification circuit, and said rectification circuit is connected with a filter circuit, and a said filter circuit is connected with the secondary filtering circuit; Said secondary filtering circuit is connected with mu balanced circuit, and said mu balanced circuit and secondary filtering circuit form the one-level mu balanced circuit; The outlet side of said one-level mu balanced circuit is the output of converter, and the both positive and negative polarity of the output of said converter is connected with welding gun, workpiece to be welded respectively; The outlet side of said one-level mu balanced circuit is connected with the magnetic valve of the control of supplying gas; LM three-terminal voltage-stabilizing current stabilization circuit is connected with the speed controlling end of the wire-feed motor of welding gun.
Further, between a said filter circuit and the secondary filtering circuit electrothermal relay is installed.When temperature is higher than 75 ℃, break off relay, quit work.
Further again, said LM three-terminal voltage-stabilizing current stabilization circuit is a LM317 three-terminal voltage-stabilizing current stabilization circuit, certainly, also can adopt the three-terminal voltage-stabilizing current stabilization circuit of other types.
Further, the output of said converter is connected with welding gun through filtering magnet ring inductance.
Technical conceive of the present invention is: converter is exactly the control system of MIG gas-shielded welder, for realizing a kind of control system and device of the ad hoc meter of common inversion welding machine upgrade function.System adopts DC/DC to change input voltage and RC, L filtering step-down scheme, solved the inverter type welder arc voltage higher with the welding process output voltage on the high-frequency interferencing signal and the welding wire that superpose excessively return burning, burn problems such as ignition tip.Make output voltage signal totally stable, do not have burr, the voltage probability density is compressed in the ideal region.
The pulsating dc voltage of inversion welding machine output,, be the converter power supply then by this stable voltage sources of discrete components and parts primordial such as transistors through the secondary rectifying and wave-filtering.Wire-feed motor is to adopt three terminal regulator LM317.Its feature is that the big 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, magnetic valve is opened and is supplied gas when arc welding gun switch is pressed.
Beneficial effect of the present invention mainly shows: can satisfy simultaneously the gentle guarantor of manual welding weld need electrothermal relay after; At the inferior inductance (22mH) that passes through; 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) are formed the 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;
The wire-feed motor adjustable-speed is a LM317 three-terminal voltage-stabilizing current stabilization circuit, and its composition is a 1/2W resistance 10K+10K potentiometer, and 240 Ω and 334,105 electric capacity are formed; Output connects welding gun, and the loop through 2W/10 Ω resistance over the ground.
When arc welding gun switch 3-1 presses work, produce a current potential 1/4W470 Ω resistance current limliting before the 2W/10 Ω resistance, trigger triode BC33725 starts the magnetic valve of supplying gas and opens and supply gas.Fail safe diode when the SF26 diode is the LM317 overcurrent.
Welding current is to supply with welding gun behind the filtering magnet ring inductance processed of the ferrite bead of 2P44 through material behavior, and modulated current need be accomplished through inverter type welder.
With reference to Fig. 2, one group of parameter of the circuit of present embodiment is following:
L01 is filtering magnet ring inductance 2P44, and L02 is inductance coil 22 μ H, and L03 is ribbon core inductance coil μ H, and D01 is quick revovery diode SF38; D02 is Zener diode 1W/33V, and D04 is diode SF26, and D04 is a LED; C01～C05 is electrochemical capacitor 100 μ F/100V, and C06 is electrochemical capacitor 10 μ F, and C07 is a polarity free capacitor 334; 08 is polarity free capacitor 105, and J01 is electrothermal relay 5A, and J02 is the welding gun gauge tap; Q01 is transistor ZCSC2751, and Q02 manages BU406 today, and Q03 is triode BC33725, and R01 is resistance 1W/10K Ω; R02 is resistance 470K Ω, and R03 is resistance 0.5W/10K Ω, and R04 is potentiometer 10K Ω; R05 is resistance 240K Ω, and R06 is resistance 2W/10K Ω, and R07 is resistance 4.7K Ω; R08 is resistance 0.25W/470 Ω, and IC01 is three sections voltage-stabiliser tube LM317, magnetic valve DC24V.
In the present embodiment, the operation principle of converter 2 is the pulsating dc voltage of inverter type welder 1 output, through the secondary rectifying and wave-filtering, is the converter power supply by this stable voltage sources of discrete components and parts primordial such as transistors then.The wire-feed motor of welding gun 3 is to adopt three terminal regulator LM317 power supply.Its feature is that the big 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, when arc welding gun switch 3-1 pressed, the electrical power running owing to be added with one 10 Europe resistance in the electric motor loop, started the magnetic valve of supplying gas by this current potential.The temperature measuring circuit is equipped with in inside, and the electrothermal relay converter of a 5A promptly is housed on the transistor heat sinks, and internal temperature is higher than 75 holding circuits when spending and starts, and quits work.
Claims (4)
1. an intelligent gas is protected the weldering converter; It is characterized in that: said converter comprises input and output; The both positive and negative polarity of said input is connected with the both positive and negative polarity of inverter type welder respectively, and said converter also comprises rectification circuit, filter circuit, secondary filtering circuit, mu balanced circuit and a LM three-terminal voltage-stabilizing current stabilization circuit, and said input is connected with rectification circuit; Said rectification circuit is connected with a filter circuit; A said filter circuit is connected with the secondary filtering circuit, and said secondary filtering circuit is connected with mu balanced circuit, and said mu balanced circuit and secondary filtering circuit form the one-level mu balanced circuit; The outlet side of said one-level mu balanced circuit is the output of converter, and the both positive and negative polarity of the output of said converter is connected with welding gun, workpiece to be welded respectively; The outlet side of said one-level mu balanced circuit is connected with the magnetic valve of the control of supplying gas; LM three-terminal voltage-stabilizing current stabilization circuit is connected with the speed controlling end of the wire-feed motor of welding gun.
2. intelligent gas as claimed in claim 1 is protected the weldering converter, it is characterized in that: between a said filter circuit and the secondary filtering circuit electrothermal relay is installed.
3. according to claim 1 or claim 2 intelligent gas is protected the weldering converter, and it is characterized in that: said LM three-terminal voltage-stabilizing current stabilization circuit is a LM317 three-terminal voltage-stabilizing current stabilization circuit.
4. according to claim 1 or claim 2 intelligent gas is protected the weldering converter, and it is characterized in that: the output of said converter is connected with welding gun through 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 |
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| 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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| CN102528230A true CN102528230A (en) | 2012-07-04 |
| CN102528230B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115319226A (en) * | 2022-08-04 | 2022-11-11 | 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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| 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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- 2011-12-20 CN CN201110458985.9A patent/CN102528230B/en not_active Expired - Fee Related
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115319226A (en) * | 2022-08-04 | 2022-11-11 | 吴忠市黄河电焊机有限公司 | Voltage stabilizing system and digital gas shielded welding machine with same |
| 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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| CN102528230B (en) | 2014-10-01 |
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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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