CN104625336A - Inversion direct-current gas shielded welding power supply - Google Patents
Inversion direct-current gas shielded welding power supply Download PDFInfo
- Publication number
- CN104625336A CN104625336A CN201510016025.5A CN201510016025A CN104625336A CN 104625336 A CN104625336 A CN 104625336A CN 201510016025 A CN201510016025 A CN 201510016025A CN 104625336 A CN104625336 A CN 104625336A
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- China
- Prior art keywords
- circuit
- power supply
- plate
- gas shielded
- direct current
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Classifications
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- 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
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
- Generation Of Surge Voltage And Current (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention provides an inversion direct-current gas shielded welding power supply which comprises a bottom plate and a shell body arranged on the bottom plate. The shell body comprises a front plate and a back plate. The inversion direct-current gas shielded welding power supply is characterized in that a middle partitioning plate is arranged between the front plate and the back plate, an upper partitioning plate is arranged on one side of the middle partitioning plate, a power converting circuit plate is arranged between the upper partitioning plate and the bottom plate, a power converting circuit is arranged on the power converting circuit plate, a control plate is arranged on the upper partitioning plate, a voltage given circuit, a soft starting circuit, a pulse width modulation circuit, a heat protection circuit, an over-current detecting circuit and a CVF control circuit are arranged on the control plate. The inversion direct-current gas shielded welding power supply has the advantages that the mounting convenience of a whole machine is improved through a reasonable structure, influence on a control system from dust is lowered, the fault rate of products is lowered, meanwhile, an advanced CVF constant voltage type electronic reactance feedback circuit is used for replacing a traditional electric reactor, and splashing during welding is lowered.
Description
Technical field
The present invention relates to a kind of inversion direct current gas shielded arc welding power supply.
Background technology
Traditional inversion gas shielded arc welding all seals in filter inductance to control the splashing in welding process in welding circuit, and this inductance manufacturing process is complicated, and filter effect affects larger by silicon steel sheet material, and uniformity is poor.Make power source integral volume large after increasing inductance, complex structure, bring to installation and transport and regular maintenance very inconvenient.Therefore the use of traditional inductance seriously constrains the development of inversion gas shielded arc welding power supply, finds the most important thing that novel inductor more and more becomes the development of inversion gas shielded arc welding.
Summary of the invention
Technical problem to be solved by this invention is the deficiency overcoming above-mentioned prior art, the inversion direct current gas shielded arc welding power supply providing a kind of spatter little.
According to the main technical schemes of a kind of inversion direct current gas shielded arc welding power acquisition provided by the invention be: comprise base plate and be arranged on the housing on described base plate, described housing comprises front and rear panels, between described header board and described rear plate, median septum is installed, the side of described median septum is provided with upper spacer, circuit for power conversion plate is installed between described upper spacer and described base plate, described circuit for power conversion plate is provided with circuit for power conversion, described upper spacer is provided with control panel, described control panel is provided with voltage given circuit, soft starting circuit, pulse-width modulation circuit, thermal protection control circuit, over-current detection circuit, CVF control circuit, described CVF control circuit is connected with described circuit for power conversion.
Inversion direct current gas shielded arc welding power supply provided by the invention also can have following attached technical characteristic:
Described circuit for power conversion plate is provided with electrochemical capacitor and radiator, the radiator of described electrochemical capacitor side is provided with inverter, the radiator of described electrochemical capacitor opposite side is provided with fast recovery diode and rectifier bridge, and described rectifier bridge is positioned at the top of described fast recovery diode.
Described inverter forms full-bridge inverter by four IGBT be connected.
Described front and rear panels all offer ventilating opening, and wherein, a described ventilating opening is as air inlet, and described in another, ventilating opening is as air outlet.
Described housing, base plate, upper spacer and described circuit for power conversion plate and described ventilating opening form heat dissipation channel, and the described ventilating opening place as air inlet is provided with blower fan.
Described base plate is provided with transformer, and described transformer is arranged on the ventilating opening place as air outlet.
Described median septum is provided be connected wire-feed motor and wire feeding axis, and described wire-feed motor is connected with described circuit for power conversion.
Described circuit for power conversion comprises the rectification filtering unit, inversion unit, transformer T1 and the secondary rectification unit that are connected, and described CVF electronics reactance-controlled circuit is by regulating short circuit current growth rate from the voltage signal and current signal that detect output two ends.
Described rectification filtering unit comprises the rectifier bridge, filter capacitor C58-60 and C62-64 that are connected, and industrial-frequency alternating current transfers to inversion unit after described rectifier bridge rectification and described filter capacitor C58-60 and C62-64 filtering formation direct current.
Described inversion unit forms full-bridge inverter by four IGBT, described secondary rectification unit comprises fast extensive pipe D27-D28, D30-D31, and described direct current is reverse into after interchange through described inversion unit and obtains steady dc source through transformer and the rectification of secondary rectification unit again.
The beneficial effect adopting inversion direct current gas shielded arc welding power supply provided by the invention to bring is: utilize advanced CVF electronics reactance to replace conventional reactor, both reduced splashing during welding, and made again complete machine structure clear, not only ease of assembly but also be conducive to after-sales service.Control system major part material all uses surface-mounted device; production can realize automated production; can enhance productivity rapidly, adopt unique device distributed architecture; the ventilation effect of complete machine is significantly improved; heater members is arranged on air channel; not only can well dispel the heat but also can reduce the area of radiator, and having reduced machine cost greatly, main is that the volume and weight of inversion direct current gas shielded arc welding power supply reduces greatly.
Accompanying drawing explanation
Fig. 1 is the decomposition texture schematic diagram of inversion direct current gas shielded arc welding power supply of the present invention.
Fig. 2 is the structure chart of inversion direct current gas shielded arc welding power supply of the present invention.
Fig. 3 is the structure chart at another visual angle of inversion direct current gas shielded arc welding power supply of the present invention.
Fig. 4 is the circuit theory diagrams of inversion direct current gas shielded arc welding power supply of the present invention.
Fig. 5 is the circuit theory diagrams of CVF control circuit in inversion direct current gas shielded arc welding power supply of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further detail:
As shown in Figures 1 to 5, according to the embodiment of a kind of inversion direct current gas shielded arc welding power supply provided by the invention, comprise base plate 1 and be arranged on the housing 2 on described base plate 1, described housing 2 comprises header board 21 and rear plate 22, between described header board 21 and described rear plate 22, median septum 3 is installed, the side of described median septum 3 is provided with upper spacer 4, between described upper spacer 4 and described base plate 1, circuit for power conversion plate 5 is installed, described circuit for power conversion plate 5 is provided with circuit for power conversion, described upper spacer 4 is provided with control panel 6, described control panel 6 is provided with CVF control circuit, voltage given circuit, soft starting circuit, PWM circuit, described CVF control circuit is connected with described circuit for power conversion.The present invention replaces conventional reactor by adopting advanced CVF electronics reactance, has both reduced splashing during welding, and has made again complete machine structure clear, not only ease of assembly but also be conducive to after-sales service; Adopt unique device distributed architecture; the ventilation effect of complete machine is significantly improved; heater members is arranged on air channel; not only can well dispel the heat but also the area of radiator can have been reduced; reduce machine cost greatly, main is that the volume and weight of inversion direct current gas shielded arc welding power supply reduces greatly.
See Fig. 1 to Fig. 5; according to inversion direct current gas shielded arc welding power supply provided by the invention; described circuit for power conversion plate 5 is provided with electrochemical capacitor 51 and radiator 52; the radiator 52 of described electrochemical capacitor 51 side is provided with inverter 53; the radiator 52 of described electrochemical capacitor 51 opposite side is provided with fast recovery diode 54 and rectifier bridge 55, and described rectifier bridge 55 is positioned at the top of described fast recovery diode 54.The present invention adopts unique device distributed architecture; the amount of heat produced in running according to above-mentioned electric elements selects the distribution of electric elements; the ventilation effect of complete machine is significantly improved; heater members is arranged on air channel; not only can well dispel the heat but also the area of radiator can have been reduced; reduce machine cost greatly, main is that the volume and weight of inversion direct current gas shielded arc welding power supply reduces greatly.
See Fig. 1 to Fig. 5, according to inversion direct current gas shielded arc welding power supply provided by the invention, described inverter 53 forms full-bridge inverter by four IGBT be connected, described header board 21 and rear plate 22 all offer ventilating opening 23, wherein, a described ventilating opening 23 is as air inlet, described in another, ventilating opening 23 is as air outlet, described housing 2, base plate 1, upper spacer 4 and described circuit for power conversion plate 5 form heat dissipation channel with described ventilating opening 23, described ventilating opening 23 place as air inlet is provided with blower fan 24, described base plate 1 is provided with transformer 7, described transformer 7 is arranged on ventilating opening 23 place as air outlet, adopt unique device distributed architecture, the ventilation effect of complete machine is significantly improved, heater members is arranged on air channel, not only can well dispel the heat but also the area of radiator can have been reduced, reduce machine cost greatly, main is that the volume and weight of inversion direct current gas shielded arc welding power supply reduces greatly.
See Fig. 1 to Fig. 5; according to inversion direct current gas shielded arc welding power supply provided by the invention; described median septum 3 is provided be connected wire-feed motor 31 and wire feeding axis 32; described wire-feed motor 31 is connected with described circuit for power conversion; adopt unique device distributed architecture; the ventilation effect of complete machine is significantly improved; heater members is arranged on air channel; not only can well dispel the heat but also the area of radiator can have been reduced; reduce machine cost greatly, main is that the volume and weight of whole inversion direct current gas shielded arc welding power supply reduces greatly.
See Fig. 1 to Fig. 5, according to inversion direct current gas shielded arc welding power supply provided by the invention, described circuit for power conversion comprises the rectification filtering unit be connected, inversion unit, transformer T1 and secondary rectification unit, described CVF electronics reactance-controlled circuit is by regulating short circuit current growth rate from the voltage signal and current signal that detect output two ends, whole control system adopts SMT surface-mounted device to be welded, and be arranged in above the CVF control panel in inversion direct current gas shielded arc welding power supply, facilitate automated production, test, inspection, maintenance, space availability ratio is high, generally be difficult to accomplish.
See Fig. 1 to Fig. 5; according to inversion direct current gas shielded arc welding power supply provided by the invention; described rectification filtering unit comprises the rectifier bridge, filter capacitor C58-C60 and C62-C64 that are connected, and industrial-frequency alternating current transfers to inversion unit after described rectifier bridge rectification and described filter capacitor C58-C60 and C62-C64 filtering formation direct current.
See Fig. 1 to Fig. 5; according to inversion direct current gas shielded arc welding power supply provided by the invention; described inversion unit forms full-bridge inverter by four IGBT; described secondary rectification unit comprises fast extensive pipe D27-D28, D30-D31, and described direct current is reverse into after interchange through described inversion unit and obtains steady dc source through transformer and the rectification of secondary rectification unit again.
Operation principle: gas shielded arc welding power supply obtains industrial-frequency alternating current by power switch S1, through EMI circuit, direct current is become again through rectifier bridge rectification D29 and capacitor filtering C58-60 and C62-64, via the full-bridge inverter of four IGBT:IGBT1-IGBT4 compositions, be reverse into the alternating current being about 30KHz, through voltage changer T2 transformation, through fast extensive pipe D27-D28, D30-D31 rectification, obtain steady dc source, through primary feedback L1 to connector CN11, through D9, D10, D11, D12 bridge rectifier, C25 filtering, R34 amplitude limit, one tunnel enters pwm chip U14 pin after R20 and C2 composition RC absorbs, be used for constant current, control the change of electric current, the particle of effective change spatter, another road enters pwm chip U116 pin after R21 and C4 composition RC absorbs, when being used for controlling short circuit, the excessive electric arc caused of electric current is abnormal, export both positive and negative polarity and feed back to control panel connector CN7, bleeder circuit is formed through R79 and R18, the follower entering the 4th pin composition of U4A enters 6 pin of U3B by R17, with Setting signal Vi constituent ratio comparatively, the PI circuit consisted of U3B regulates, through R11, R12, R13 and C13 enters pwm chip U1 the 5th pin, form constant voltage circuit, effectively stabilize the change of output voltage, particularly U3B peripheral parameters choose with the parameter of R13 and C13 very important, effectively improve the rate of change of voltage, with reaction speed during welding, thus adjust the size thus lifting welding effect of splashing further.
Claims (10)
1. an inversion direct current gas shielded arc welding power supply, comprise base plate and be arranged on the housing on described base plate, described housing comprises front and rear panels, it is characterized in that: between described header board and described rear plate, median septum is installed, the side of described median septum is provided with upper spacer, circuit for power conversion plate is installed between described upper spacer and described base plate, described circuit for power conversion plate is provided with circuit for power conversion, described upper spacer is provided with control panel, described control panel is provided with voltage given circuit, soft starting circuit, pulse-width modulation circuit, thermal protection control circuit, over-current detection circuit, CVF control circuit, described CVF control circuit is connected with described circuit for power conversion,
Shown in CVF control circuit comprise be connected primary feedback L1, connector CN11, diode D9, D10, D11, D12 carry out bridge rectifier, electric capacity C25 carries out filtering, resistance R34 carries out amplitude limit, one road electric current forms after wave filter absorbs through resistance R20 and electric capacity C2 and enters pwm chip U14 pin, and another road electric current forms after wave filter absorbs through resistance R21 and electric capacity C4 and enters pwm chip U116 pin;
Through output cathode and negative feedback to control panel connector CN7, partial pressure unit is formed through resistance R79 and R18, the follower entering the 4th pin composition of pwm chip U4A enters 6 pin of pwm chip U3B by resistance R17, with Setting signal Vi constituent ratio comparatively, the PI regulon consisted of pwm chip U3B regulates, enter pwm chip U1 the 5th pin through resistance R11, R12, R13 and electric capacity C13, form constant voltage unit.
2. inversion direct current gas shielded arc welding power supply as claimed in claim 1; it is characterized in that: described circuit for power conversion plate is provided with electrochemical capacitor and radiator; the radiator of described electrochemical capacitor side is provided with inverter; the radiator of described electrochemical capacitor opposite side is provided with fast recovery diode and rectifier bridge, and described rectifier bridge is positioned at the top of described fast recovery diode.
3. inversion direct current gas shielded arc welding power supply as claimed in claim 2, is characterized in that: described inverter forms full-bridge inverter by four IGBT be connected.
4. inversion direct current gas shielded arc welding power supply as claimed in claim 1, it is characterized in that: described front and rear panels all offer ventilating opening, wherein, a described ventilating opening is as air inlet, and described in another, ventilating opening is as air outlet.
5. inversion direct current gas shielded arc welding power supply as claimed in claim 4, it is characterized in that: described housing, base plate, upper spacer and described circuit for power conversion plate and described ventilating opening form heat dissipation channel, the described ventilating opening place as air inlet is provided with blower fan.
6. inversion direct current gas shielded arc welding power supply as claimed in claim 4, it is characterized in that: described base plate is provided with transformer, described transformer is arranged on the ventilating opening place as air outlet.
7. inversion direct current gas shielded arc welding power supply as claimed in claim 4, it is characterized in that: described median septum is provided be connected wire-feed motor and wire feeding axis, described wire-feed motor is connected with described circuit for power conversion.
8. inversion direct current gas shielded arc welding power supply as claimed in claim 1; it is characterized in that: described circuit for power conversion comprises the rectification filtering unit, inversion unit, transformer T2 and the secondary rectification unit that are connected, described CVF electronics reactance-controlled circuit is by regulating short circuit current growth rate from the voltage signal and current signal that detect output two ends.
9. inversion direct current gas shielded arc welding power supply as claimed in claim 8; it is characterized in that: described rectification filtering unit comprises the rectifier bridge, filter capacitor C58-60 and C62-64 that are connected, industrial-frequency alternating current transfers to inversion unit after described rectifier bridge rectification and described filter capacitor C58-60 and C62-64 filtering formation direct current.
10. inversion direct current gas shielded arc welding power supply as claimed in claim 9; it is characterized in that: described inversion unit forms full-bridge inverter by four IGBT; described secondary rectification unit comprises fast extensive pipe D27-D28, D30-D31, and described direct current is reverse into after interchange through described inversion unit and obtains steady dc source through transformer and the rectification of secondary rectification unit again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016025.5A CN104625336B (en) | 2015-01-13 | 2015-01-13 | A kind of inversion direct current gas shielded arc welding power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510016025.5A CN104625336B (en) | 2015-01-13 | 2015-01-13 | A kind of inversion direct current gas shielded arc welding power supply |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104625336A true CN104625336A (en) | 2015-05-20 |
| CN104625336B CN104625336B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510016025.5A Expired - Fee Related CN104625336B (en) | 2015-01-13 | 2015-01-13 | A kind of inversion direct current gas shielded arc welding power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040787A1 (en) * | 2016-08-31 | 2018-03-08 | 南通富力机电设备有限责任公司 | Digital inverter welder |
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| GB2049315A (en) * | 1979-04-11 | 1980-12-17 | Borrfors E | Electronically controlled electric arc-welding |
| US5416299A (en) * | 1989-08-02 | 1995-05-16 | Mitsubishi Denki Kabushiki Kaisha | Pulse welding apparatus |
| CN101733594A (en) * | 2008-11-21 | 2010-06-16 | 上海沪工电焊机制造有限公司 | Isolation device suitable for digitalized electric welder |
| CN202367358U (en) * | 2011-11-09 | 2012-08-08 | 上海沪工焊接集团股份有限公司 | Radiation structure applied to electric welding machine |
| CN203599689U (en) * | 2013-11-22 | 2014-05-21 | 上海沪工焊接集团股份有限公司 | Integral structure of inverter welding power source |
| CN203956299U (en) * | 2014-07-24 | 2014-11-26 | 温岭万顺机电制造有限公司 | The structure of inversion direct current arc-welding power supply |
| CN203956302U (en) * | 2014-07-24 | 2014-11-26 | 温岭万顺机电制造有限公司 | The structure of single tube IGBT contravariant arc welding power source |
-
2015
- 2015-01-13 CN CN201510016025.5A patent/CN104625336B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2049315A (en) * | 1979-04-11 | 1980-12-17 | Borrfors E | Electronically controlled electric arc-welding |
| US5416299A (en) * | 1989-08-02 | 1995-05-16 | Mitsubishi Denki Kabushiki Kaisha | Pulse welding apparatus |
| CN101733594A (en) * | 2008-11-21 | 2010-06-16 | 上海沪工电焊机制造有限公司 | Isolation device suitable for digitalized electric welder |
| CN202367358U (en) * | 2011-11-09 | 2012-08-08 | 上海沪工焊接集团股份有限公司 | Radiation structure applied to electric welding machine |
| CN203599689U (en) * | 2013-11-22 | 2014-05-21 | 上海沪工焊接集团股份有限公司 | Integral structure of inverter welding power source |
| CN203956299U (en) * | 2014-07-24 | 2014-11-26 | 温岭万顺机电制造有限公司 | The structure of inversion direct current arc-welding power supply |
| CN203956302U (en) * | 2014-07-24 | 2014-11-26 | 温岭万顺机电制造有限公司 | The structure of single tube IGBT contravariant arc welding power source |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040787A1 (en) * | 2016-08-31 | 2018-03-08 | 南通富力机电设备有限责任公司 | Digital inverter welder |
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| CN104625336B (en) | 2016-08-17 |
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