CN108296605A - A kind of welding machine of output AC or DC - Google Patents
A kind of welding machine of output AC or DC Download PDFInfo
- Publication number
- CN108296605A CN108296605A CN201810216242.2A CN201810216242A CN108296605A CN 108296605 A CN108296605 A CN 108296605A CN 201810216242 A CN201810216242 A CN 201810216242A CN 108296605 A CN108296605 A CN 108296605A
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- 238000003466 welding Methods 0.000 title claims abstract description 75
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 208000037516 chromosome inversion disease Diseases 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 229920006926 PFC Polymers 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000007600 charging Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1043—Power supply characterised by the electric circuit
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
The present invention discloses a kind of welding machine of output AC or DC, including：Input voltage, DC rectifier output unit, the input voltage form direct current output through the DC rectifier output unit；Control unit controls signal for exporting DC/AC according to input signal；Output waveform switch unit, which controls signal output DC driven signal according to the DC/AC or alternating current drive signal, the output waveform switch unit are connect with the DC rectifier output unit and secondary inverting unit.
Description
Technical field
The present invention relates to welding machine technical fields, more particularly to can export AC or DC and realize a variety of welding functions
Welding machine.
Background technology
Electric welding machine is a kind of high-temperature electric arc generated in instantaneous short circuit using positive and negative polarities come the weldering on consumable electrode
Material and materials to be welded, make the equipment being combined by contactant.Welding machine is main as a kind of indispensable tool in industry manufacture
Be used to make two separation metal objects generate atom in conjunction with and link into an integrated entity.General welding machine is main on the market at present
There are following a few classes：(1) classify from output type：DC welder and AC welding set can be divided into；(2) from the use aspect of welding machine point
Class：Manual welding, argon arc welding and gas shield welding can be divided into.The welding machine to be circulated at present is mostly that (majority is using a kind of for DC welder
Welding manner, it is the combination of two kinds or three kinds also to have minority) or ac argon arc weld.
With the development of industry, traditional welding machine cannot meet the needs of market, and the more demands of user are one
A variety of welding functions may be implemented in welding machine, so as in different welding occasions, meet difference by handoff functionality
Welding demand, rather than go to replace different welding machine types.This money welding machine considers factors above, using advanced welding
Direct current manual welding, argon arc welding, gas shield welding and exchange gas shield welding are combined into one by power technology, can by the switching of control terminal
To realize a variety of welding, to ensure the intelligent integral of welding machine.
Invention content
In view of this, the present invention provides a kind of welding machine, which can select output direct current or exchange by user, and can
To be combined with a variety of welding manners, multi-functional welding requirement is realized.
In order to achieve the above-mentioned object of the invention, the present invention discloses a kind of welding machine of output AC or DC, including：Input electricity
Pressure, DC rectifier output unit, the input voltage form direct current output through the DC rectifier output unit；Control unit is used for
DC/AC, which is exported, according to input signal controls signal；Output waveform switch unit, the output waveform switch unit are straight according to this
Stream/AC controling signal output DC driven signal or alternating current drive signal, the output waveform switch unit and the DC rectifier
Output unit is connected with secondary inverting unit.
Further, which is 110V or 220V AC voltage.
Further, which includes that bridge rectifier unit, power factor correction unit, full-bridge are inverse
Become unit and output rectification unit.
Further, which includes control panel and microcontroller, and the microcontroller is by the defeated of the control panel
Enter signal and is converted to DC/AC control signal.
Further, which includes triode, relay and exchanges driving unit；The input is believed
Number be DC control signal when, the triode ON, the relay be attracted, the output waveform switch unit export DC driven letter
Number；When the input signal is AC controling signal, which is not turned on, which is not attracted, and the exchange driving unit is defeated
Go out alternating current drive signal.
Further, which includes driving resistance R7, R8, R12, R13 and insulated gate bipolar crystal
One end of pipe IGBT1, IGBT2, IGBT3, IGBT4, driving resistance R7 connect the control unit, and the other end connects the IGBT1
Grid, one end of driving resistance R8 connects the control unit, and the other end connects the grid of the IGBT2, driving resistance R12
One end connect the control unit, the other end connects the grid of the IGBT3, and one end of R13 connects the control unit, and the other end connects
Connect the grid of the IGBT4.
Further, which further includes equalizing resistance R9 and R14, the both ends connection of equalizing resistance R9
The collector and emitter of IGBT1 and IGBT2, the collector and hair of the both ends connection IGBT3 and IGBT4 of equalizing resistance R14
Emitter-base bandgap grading.
Further, which further includes absorption circuit unit, the absorption circuit unit and the insulated gate
The collector and emitter of bipolar transistor connects.
Further, which includes resistance C2, C4, resistance R10, R11, R15, R16, wherein capacitance
The absorption circuit of C3, resistance R10, R11 composition IGBT1, IGBT2, the suction of capacitance C4, resistance R15, R16 composition IGBT3, IGBT4
Withdraw road.
Further, which further includes diode D11 and capacitance C79, resistance R129, the resistance
One end of R129 connects the base stage that the control unit other end connects capacitance C79 and triode, the other end of the capacitance with should
The emitter of triode is grounded, and one end of diode D11 connects the collector and relay of the triode, other end connection electricity
Source.
Compared with prior art, technical solution provided by the present invention, can be by the output of user's unrestricted choice welding machine
Mode.An AC/DC, which is exported, after control panel receives user's input, after being handled via microcontroller controls signal.It is controlled by AC/DC
Signal processed controls the action of relay, the on-state of control output DC bus, to realize alternating current-direct current via triode
Switching.When output is direct current, this machine can select to realize that DC-MMA (direct current-manual welding), DC-TIG are (straight by panel
Stream-non-melt pole inert gas tungsten electrode protection weldering), three kinds of welding manners of DC-MIG (direct current-welding)；
When output is exchanges, passes through panel and select to realize AC-MMA (exchange-manual welding), AC-TIG (exchanges-non-melt pole indifferent gas
Body tungsten electrode protection weldering) two kinds of welding manners pass through a welding machine and realize to make up the deficiency of the single welding manner of former welding machine
A variety of bond patterns, so as to which in different welding occasions, different welding demands can be met by handoff functionality, and
It is not to replace different welding machine types.
Description of the drawings
Attached drawing does not constitute inappropriate limitation of the present invention for more fully understanding the present invention.Wherein：
Fig. 1 is the structural schematic diagram of the welding machine of output AC or DC provided by the present invention；
Fig. 2 is the circuit diagram of the welding machine of output AC or DC provided by the present invention；
Fig. 3 is the current diagram of the bridge rectifier unit of welding machine provided by the present invention；
Fig. 4 is the PFC power factor correction units of welding machine provided by the present invention；
Fig. 5 is the full-bridge inverting unit of welding machine provided by the present invention；
Fig. 6 is the output rectification unit of welding machine provided by the present invention；
Fig. 7 is the output waveform switch unit of welding machine provided by the present invention.
Specific implementation mode
Core of the invention thought is that providing the present invention discloses a kind of welding machine of output AC or DC, using double electricity
Pressure, after input ac voltage is by full-bridge rectification, then via BOOST PFCs after, direct current that will pulse after rectification
Buckling becomes square wave at smoother direct current, by full-bridge inverting output and is sent to two via transformer one low-voltage alternating-current of output
Secondary side, then by being exported after secondary full-bridge rectification, output here can switch output state by the selection of panel.
It is proposed by the present invention both below in conjunction with 1~7 pair of attached drawing to keep the purpose of the present invention, advantages and features clearer
The welding machine that direct current can be exported again can export exchange is described in further detail.It should be noted that attached drawing be all made of it is very simple
The form of change and use non-accurate ratio, only for the purpose of facilitating and clarifying the purpose of the embodiments of the invention.
As used in this specification, singulative "a", "an" and "the" includes plural reference, unless interior
In addition appearance explicitly points out outer.It is as used in this specification, term "or" be typically with the meaning including "and/or" and into
Enforcement, in addition in addition non-content explicitly points out.
As described in Figure 1, Fig. 1 is the structural schematic diagram of the welding machine of output AC or DC provided by the present invention.The present invention
A kind of welding machine of output AC or DC is disclosed, and input voltage, DC rectifier output unit, the input voltage is through the DC rectifier
Output unit forms direct current output；Control unit controls signal for exporting DC/AC according to input signal；Output waveform
Switch unit, which controls signal output DC driven signal according to the DC/AC or exchange drives
Signal, the output waveform switch unit are connect with the DC rectifier output unit and secondary inverting unit.Wherein, DC rectifier is defeated
It includes bridge rectifier unit 20, power factor correction unit 30, full-bridge inverting unit 40, output rectification unit 50 to go out unit.Control
Unit processed includes display panel 90, control loop 80.Control loop 80 and full-bridge inverting unit 40, output waveform switch unit 60
Connection.The DC driven signal and alternating current drive signal that output waveform switch unit 60 exports are separately connected output rectification unit 50
With secondary inverting unit 70 for exporting direct current component or alternating current unit.
The connection of each unit and specific circuit composition are with reference to Fig. 2-Fig. 7.
Fig. 3 is the circuit diagram of bridge rectifier unit.As shown in figure 3,20 major function of bridge rectifier unit is will be defeated
1~the 110V/220V entered exports the direct current of a pulsation through over commutation, and in the positive half period of exchange, D1, D4 conducting are born
D2, D3 are connected in half period, to realize the function of rectification.
Fig. 4 is the circuit diagram of power factor correction unit.As shown in figure 4, power factor correction unit 30 is main
Function is to realize PFC.By sampling the voltage after rectification and firmly the voltage at the both ends capacitance C5 and flowing through circuit
Electric current, realize PWM modulation by PFC control circuit, PFC realized to drive IBGT (V8, V8-1).
When insulated gate bipolar transistor IGBT is opened, rectified voltage passes through LT energy storage, when IGBT is turned off, rectified voltage and LT
Energy storage inductor electric discharge gives main capacitance C5 chargings by diode D5 (anti-reverse diode), so that output voltage DC1 is higher than
DC realizes the effect of boosting.In Fig. 4, capacitance C1, diode D6, R5 are IGBT absorbing circuits, and R1, R3 are driving resistance, resistance
R6, capacitance C2 are the absorbing circuit of diode D5.
Fig. 5 is the circuit diagram of full-bridge inverting unit.As shown in figure 5, full-bridge inverting unit 40 by by PFC power because
It is square wave alternating-current that voltage after number correction, which passes through full-bridge inverting,.It is connected to triode Q1, Q4 when the inversion in control loop drives
When signal, export as positive square wave, when the inversion in control loop drives to triode Q2, Q3 Continuity signal, it is negative to export
To square wave, then changes square-wave voltage and be output to secondary side after transformer ZBYQ decompressions.
Fig. 6 is the circuit diagram for exporting rectification unit.As shown in fig. 6, transformer ZBYQ drops in output rectification unit 50
Pressure exchange, which carries out full-wave rectification, becomes direct current.When positive square wave, diode D7, D10 conducting, when negative sense square wave, diode
D8, D9 are connected.
Fig. 7 is the circuit diagram of output waveform switch unit.As shown in fig. 7, the output waveform switch unit 60 and control
Circuit 80 processed connects, and realizes the switching of output AC/DC.Control loop 80 exports ac/dc and controls signal, if output is straight
Flow control signals, the output waveform switch unit 60 export DC driven signal；If the AC controling signal of output, the output
Waveform switch unit 60 exports alternating current drive signal.
After the AC/DC (ac/dc) of control panel 90 selects to determine, after which is handled via control loop 80,
One AC/DC of output controls signal.When being selected as direct current, it is illustrated that triode T50 conducting, relay J1 is attracted, to defeated
Go out for direct current.When being selected as exchange, triode T50 is not turned on, and relay J1 is failure to actuate, at this time the exchange driving of control loop
Output control pulse drives IGBT1, IGBT2, IGBT3, IGBT4 in figure via driving resistance R7, R8, R12, R13, when
When IGBT1, IGBT2 are connected, export as just, when IGBT3, IGBT4 are connected, it is negative to export, to realize output for exchange.Figure
In 7, R9, R14 are equalizing resistance, and the collector and emitter of the both ends connection IGBT1 and IGBT2 of equalizing resistance R9, this is pressed
The collector and emitter of the both ends connection IGBT3 and IGBT4 of resistance R14.
The absorption circuit of C3, R10, R11 IGBT1, IGBT2 in Fig. 7, the suction of C4, R15, R16 IGBT3, IGBT4
Withdraw road.The output waveform switch unit further includes diode D11 and capacitance C79, and one end of resistance R129, resistance R129 connect
Connect the base stage that the control unit other end connects capacitance C79 and triode, the other end of the capacitance and the transmitting of the triode
Pole is grounded, and one end of diode D11 connects the collector and relay of the triode, and the other end connects power supply.P2, P3 are defeated
Outgoing interface.
User when in use, the way of output of welding machine is selected by control panel.After control panel receives user's input, warp
An AC/DC is exported after being handled by microcontroller controls signal.Signal, which is controlled, by AC/DC controls the dynamic of relay via triode
Make, the on-state of control output DC bus, to realize the switching of alternating current-direct current.When output is direct current, this machine can
By panel select to realize DC-MMA (direct current-manual welding), DC-TIG (direct current-non-melt pole inert gas tungsten electrode protection weldering),
Three kinds of welding manners of DC-MIG (direct current-welding)；When output is exchanges, passes through panel and select to realize
Two kinds of AC-MMA (exchange-manual welding), AC-TIG (exchange-non-melt pole inert gas tungsten electrode protection weldering) welding manners, to
The deficiency for making up the single welding manner of former welding machine, meets the needs of various occasions.
Foregoing description is only the description to present pre-ferred embodiments, not to any restriction of the scope of the invention, this hair
Any change, the modification that the those of ordinary skill in bright field does according to the disclosure above content, belong to the protection of claims
Range.
Claims (10)
1. a kind of welding machine of output AC or DC, which is characterized in that including：Input voltage, DC rectifier output unit are described
Input voltage forms direct current output through the DC rectifier output unit；Control unit, for according to input signal export direct current/
AC controling signal；Output waveform switch unit, the output waveform switch unit are defeated according to DC/AC control signal
Go out DC driven signal or alternating current drive signal, the output waveform switch unit and the DC rectifier output unit and secondary
Inversion unit connects.
2. welding machine as described in claim 1, which is characterized in that the input voltage is 110V or 220V AC voltage.
3. welding machine as described in claim 1, which is characterized in that the DC rectifier output unit include bridge rectifier unit,
Power factor correction unit, full-bridge inverting unit and output rectification unit.
4. welding machine as described in claim 1, which is characterized in that described control unit includes control panel and microcontroller, institute
It states microcontroller and the input signal of the control panel is converted into the DC/AC control signal.
5. welding machine as described in claim 1, which is characterized in that the output waveform switch unit includes triode, relay
With exchange driving unit；When the input signal is DC control signal, the triode ON, the relay is attracted, institute
State output waveform switch unit output DC driven signal；When the input signal is AC controling signal, the triode is not
Conducting, the relay are not attracted, and the exchange driving unit exports alternating current drive signal.
6. welding machine as claimed in claim 5, which is characterized in that the exchange driving unit include driving resistance R7, R8, R12,
R13 and insulated gate bipolar transistor IGBT 1, IGBT2, IGBT3, IGBT4, it is described to drive described in one end connection of resistance R7
Control unit, the other end connect the grid of the IGBT1, and one end of the driving resistance R8 connects described control unit, another
End connects the grid of the IGBT2, and one end of the driving resistance R12 connects described control unit, described in other end connection
One end of the grid of IGBT3, R13 connects described control unit, and the other end connects the grid of the IGBT4.
7. welding machine as claimed in claim 6, which is characterized in that the exchange driving unit further includes equalizing resistance R9 and R14,
The collector and emitter of the both ends connection IGBT1 and IGBT2 of the equalizing resistance R9, the both ends of the equalizing resistance R14 connect
Connect the collector and emitter of IGBT3 and IGBT4.
8. welding machine as claimed in claim 6, which is characterized in that the exchange driving unit further includes absorption circuit unit, institute
Absorption circuit unit is stated to connect with the collector and emitter of the insulated gate bipolar transistor.
9. welding machine as claimed in claim 8, which is characterized in that the absorption circuit unit includes resistance C2, C4, resistance R10,
The absorption circuit of R11, R15, R16, wherein capacitance C3, resistance R10, R11 composition IGBT1, IGBT2, capacitance C4, resistance R15,
R16 forms the absorption circuit of IGBT3, IGBT4.
10. welding machine as claimed in claim 5, which is characterized in that the output waveform switch unit further include diode D11 and
One end connection described control unit other end of capacitance C79, resistance R129, the resistance R129 connect the capacitance C79 and three
The base stage of pole pipe, the other end of the capacitance and the emitter of the triode are grounded, and one end of the diode D11 connects institute
The collector and relay of triode are stated, the other end connects power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810216242.2A CN108296605B (en) | 2018-03-16 | 2018-03-16 | Welder for outputting alternating current or direct current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810216242.2A CN108296605B (en) | 2018-03-16 | 2018-03-16 | Welder for outputting alternating current or direct current |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108296605A true CN108296605A (en) | 2018-07-20 |
| CN108296605B CN108296605B (en) | 2024-01-23 |
Family
ID=62849950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810216242.2A Active CN108296605B (en) | 2018-03-16 | 2018-03-16 | Welder for outputting alternating current or direct current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108296605B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548271A (en) * | 2020-12-14 | 2021-03-26 | 上海威特力焊接设备制造股份有限公司 | Automatic change multi-functional AC/DC welding machine of polarity |
| WO2022127139A1 (en) * | 2020-12-14 | 2022-06-23 | 上海威特力焊接设备制造股份有限公司 | Multifunctional ac/dc welding machine capable of automatically changing polarity |
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| BE732461A (en) * | 1968-05-03 | 1969-10-16 | ||
| CA2265278A1 (en) * | 1998-04-17 | 1999-10-17 | Lincoln Global, Inc. | Electric arc welder and controller therefor |
| CN1241466A (en) * | 1998-07-09 | 2000-01-19 | 伊利诺伊工具公司 | Power converter with low loss switching |
| CN1298778A (en) * | 1999-12-08 | 2001-06-13 | 林肯环球公司 | Welding machine driven by fuel cell |
| CN101274384A (en) * | 2007-03-29 | 2008-10-01 | 株式会社神户制钢所 | Consumable electrode type gas shielded arc welding control apparatus and welding control method |
| CN207952889U (en) * | 2018-03-16 | 2018-10-12 | 上海威特力焊接设备制造股份有限公司 | A kind of welding machine of output AC or DC |
-
2018
- 2018-03-16 CN CN201810216242.2A patent/CN108296605B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE732461A (en) * | 1968-05-03 | 1969-10-16 | ||
| CA2265278A1 (en) * | 1998-04-17 | 1999-10-17 | Lincoln Global, Inc. | Electric arc welder and controller therefor |
| CN1241466A (en) * | 1998-07-09 | 2000-01-19 | 伊利诺伊工具公司 | Power converter with low loss switching |
| CN1298778A (en) * | 1999-12-08 | 2001-06-13 | 林肯环球公司 | Welding machine driven by fuel cell |
| CN101274384A (en) * | 2007-03-29 | 2008-10-01 | 株式会社神户制钢所 | Consumable electrode type gas shielded arc welding control apparatus and welding control method |
| CN207952889U (en) * | 2018-03-16 | 2018-10-12 | 上海威特力焊接设备制造股份有限公司 | A kind of welding machine of output AC or DC |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112548271A (en) * | 2020-12-14 | 2021-03-26 | 上海威特力焊接设备制造股份有限公司 | Automatic change multi-functional AC/DC welding machine of polarity |
| WO2022127139A1 (en) * | 2020-12-14 | 2022-06-23 | 上海威特力焊接设备制造股份有限公司 | Multifunctional ac/dc welding machine capable of automatically changing polarity |
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| Publication number | Publication date |
|---|---|
| CN108296605B (en) | 2024-01-23 |
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