CN201455506U - Split high-frequency controller - Google Patents
Split high-frequency controller Download PDFInfo
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- CN201455506U CN201455506U CN2009200823802U CN200920082380U CN201455506U CN 201455506 U CN201455506 U CN 201455506U CN 2009200823802 U CN2009200823802 U CN 2009200823802U CN 200920082380 U CN200920082380 U CN 200920082380U CN 201455506 U CN201455506 U CN 201455506U
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- split
- transformer
- frequency controller
- high frequency
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Abstract
The utility model discloses a split high-frequency controller, which is matched for use with direct current inverter welding power sources with a negative characteristic. The split high-frequency controller at least comprises a power-frequency transformer, a direct current contactor control circuit, a control board used for function control, an electromagnetic valve used for controlling a welding gas circuit and an arc striking circuit used for generating high-voltage pulse signals, wherein a primary winding of the power-frequency transformer is connected with a 380V/50Hz power supply through a power switch, while a secondary winding is at least divided into a first winding and a second winding; the direct current contactor control circuit is connected with the first winding of the secondary winding of the power-frequency transformer; the control board is connected with the second winding of the secondary winding of the power-frequency transformer; the electromagnetic valve is connected with the control board; and the arc striking circuit is connected with the 380V/50Hz power supply. The split high-frequency controller has rational structure and high reliability, can directly perform control on the gas circuit and can be used together with the plurality of direct current inverter welding power sources.
Description
Technical field
The utility model relates to the argon arc welding welding technology field, relates in particular to a kind of split-type high frequency controller.
Background technology
Inverter type welder is subjected to generally using with characteristics such as it are efficient, light, welding performance is superior.Since the 1980s, inverter type welder is used extremely wide in manual welding and semi-automatic welding field.When inverter type welder was applied in argon tungsten-arc welding, the pulse energy that need produce a high frequency or high pressure between tungsten electrode and workpiece formed electric arc to puncture air gap, thereby forms welding process.So hf arc starter is a very important equipment in the argon arc welding.
Usually the structure of hf arc starter has two kinds of installation forms, the one, hf arc starter is placed in inverter type welder inside, form integral type high-frequency welding power supply, this kind method for designing can conveniently be transported, but owing to be subjected to the restriction of welding machine interior spatial structure, be difficult to eliminate the interference of high-frequency signal butt welding machine control circuit, if take into account the reliability of welding machine work, then can only reduce the intensity of striking pulse signal, but can cause arcing initiation success rate to descend again.
Based on the defective of above existence, derive split type hf arc starter.This type of hf arc starter is with respect to inverter type welder, it is an independently work system, welding cable need be connected on the striking device during work, because the inversion argon arc welding machine does not have electric current output under Light Condition, in order to realize the break-make of welding circuit, the inner output control part parallel circuit of welding machine need be linked to each other with the striking device by the control cable, control the welding current break-make by arc welding gun switch in the time of just being implemented in welding.Because the control circuit difference of different brands welding machine can only match with specifying type product so each welding machine is manufactured the split type hf arc starter of enterprise's product, can not be compatible.
In the actual welding operation, argon bottle generally links to each other with inversion welding source, if workpiece station and welding machine distance are far away slightly, then the method by the lengthening argon-arc welding gun realizes welding.Argon-arc welding gun is the gas-electricity one design, and just tracheae etc. is longer than the welding torch cable line, if prolong welding gun length, it is not enough then can to cause being difficult for the protection of striking and molten bath, and the lengthening welding gun can increase equipment cost.
Utility model as domestic utility model patent the 96247049.X by name hf arc starter of inverter type welder adapted " a kind of with " though its arc ignition circuit structure is simple, does not relate to the control to the argon gas gas circuit; The utility model of domestic utility model patent number 98228242.7 " controllers of manual tungsten electrode argon arc welding machine " by name, its arc ignition control circuit relative complex, though the working control of pair gas circuit is arranged, but arc initiation device need be controlled cable and link to each other with the source of welding current and could realize striking control function, with other sources of welding current poor compatibility when using that is complementary.
In summary, the high-frequency arc strike device of described prior art obviously exists inconvenience and defective, so be necessary to be improved on reality is used.
The utility model content
At above-mentioned defective, the purpose of this utility model is to provide a kind of split-type high frequency controller, it is rational in infrastructure, reliability is high, multifunction, can directly carry out gas circuit control, need not to add the control cable, can use with the inversion welding source coupling that great majority have a constant-current characteristics.
To achieve these goals, the utility model provides a kind of split-type high frequency controller, and with dc inversion source of welding current adapted, described split-type high frequency controller comprises at least
One Industrial Frequency Transformer, the elementary winding of described Industrial Frequency Transformer is connected with the 380V/50Hz power supply by power switch, and the secondary windings of described Industrial Frequency Transformer is divided into first winding and second winding at least;
One direct current contactor control circuit, described D.C. contactor control circuit is connected with first winding of the secondary windings of described Industrial Frequency Transformer;
One is used for the control panel of function control, and described control panel is connected with second winding of described Industrial Frequency Transformer secondary windings;
One is used to realize welding the magnetic valve of gas circuit control, and described magnetic valve is connected with described control panel;
One is used to produce the arc ignition circuit of high-voltage pulse signal, and described arc ignition circuit is connected with the 380V/50Hz power supply.
According to split-type high frequency controller of the present utility model, described arc ignition circuit comprises first order step-up transformer and second level step-up transformer, the elementary winding of described first order step-up transformer is connected to the 380V/50Hz power supply by first high-voltage capacitance and first relay contact, and the secondary windings of described first order step-up transformer is connected in the elementary winding of described second level step-up transformer by a SD and second high-voltage capacitance.
According to split-type high frequency controller of the present utility model, an end of the secondary windings of described second level step-up transformer is connected to the negative pole of the described dc inversion source of welding current, and the other end is connected to welding gun by the contact of described D.C. contactor.
According to split-type high frequency controller of the present utility model, described D.C. contactor control circuit comprises a rectifier bridge, second relay contact, current-limiting resistance and D.C. contactor, described rectifier bridge is connected in first winding of the secondary windings of described Industrial Frequency Transformer, and is connected in series the formation loop respectively with described second relay contact, current-limiting resistance, D.C. contactor.
According to split-type high frequency controller of the present utility model, described split-type high frequency controller comprises first relay, second relay and is used to control the arc welding gun switch of described first relay and the second relay conducting that described first relay, second relay and arc welding gun switch all are connected in described control panel.
According to split-type high frequency controller of the present utility model, the positive pole of the described dc inversion source of welding current is connected with welding work pieces with described control panel.
According to split-type high frequency controller of the present utility model, described split-type high frequency controller comprises that one is used to realize the change-over switch of long weldering and short weldering conversion, and described change-over switch is connected in described control panel.
According to split-type high frequency controller of the present utility model, described split-type high frequency controller comprises a gas testing switch, and described gas testing switch is connected in described control panel.
According to split-type high frequency controller of the present utility model, described Industrial Frequency Transformer is a three-phase 380V/50Hz Industrial Frequency Transformer.
The utility model comprises a control panel and an Industrial Frequency Transformer, by control panel circuit is controlled, the secondary windings of Industrial Frequency Transformer is divided into two groups at least, one group is connected with the D.C. contactor control circuit, another group is connected with control panel, power supply is provided for whereby D.C. contactor control circuit and control panel.Control panel welds gas circuit by control magnetic valve and then control, and controls arc ignition circuit generation high-voltage pulse signal by two relays and realize striking.Whereby, this split-type high frequency controller is rational in infrastructure, reliability is high, multifunction, can directly carry out gas circuit control, need not to add the control cable, can use with the inversion welding source coupling that great majority have a constant-current characteristics.
Description of drawings
Fig. 1 is the circuit connection diagram of the utility model split-type high frequency controller.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 shows the circuit connection diagram of the utility model split-type high frequency controller, and split-type high frequency controller 100 comprises at least and comprising
One Industrial Frequency Transformer T1, the elementary winding of this Industrial Frequency Transformer T1 is connected with the 380V/50Hz power supply by power switch S1, preferably, Industrial Frequency Transformer T1 is a three-phase 380V/50Hz Industrial Frequency Transformer, and this Industrial Frequency Transformer T1 secondary windings is divided into first winding and two windings of second winding at least;
One direct current contactor control circuit, this D.C. contactor control circuit is connected with first winding of the secondary windings of described Industrial Frequency Transformer T1;
One is used for the control panel PCB of function control, and this control panel PCB is connected with second winding of Industrial Frequency Transformer T1 secondary windings, can obtain power supply whereby;
One is used to realize welding the magnetic valve QF of gas circuit control, and this magnetic valve QF is connected in control panel PCB;
One is used to produce the arc ignition circuit of high-voltage pulse signal, and this arc ignition circuit is connected in the 380V/50Hz power supply;
Split-type high frequency controller 100 also comprises first relay J 1, second relay J 2 and is used to control the arc welding gun switch S3 of first relay J 1 and 2 conductings of second relay J that described first relay J 1, second relay J 2 and arc welding gun switch S3 all are connected in control panel PCB.
Preferably, described split-type high frequency controller 100 also comprises a gas testing switch S 5, and this gas testing switch S 5 is connected in control panel PCB.
Preferably, the D.C. contactor control circuit comprises a rectifier bridge Z1, the second relay contact J2-1 and J2-2, current-limiting resistance R2 and R3 and D.C. contactor J3, described rectifier bridge Z1 is connected in first winding of the secondary windings of Industrial Frequency Transformer T1, and is connected in series the formation loop respectively with parallel circuit, the D.C. contactor J3 of the second relay contact J2-1 and J2-2, current-limiting resistance R2 and R3.
Preferably, arc ignition circuit comprises first order step-up transformer T2 and second level step-up transformer T3, the elementary winding of first order step-up transformer T2 is connected to the 380V/50Hz power supply by the first high-voltage capacitance C1 and the first relay contact J1-1, the secondary windings of first order step-up transformer T2 is connected in the elementary winding of second level step-up transformer T3 by a SD M and the second high-voltage capacitance C2, one end of the secondary windings of second level step-up transformer T3 is connected to the negative pole of the dc inversion source of welding current, and the other end is connected to welding gun by the contact J3-1 of D.C. contactor J3.
The utility model is realized the break-make of source of welding current electric current output by the DC relay contact that is installed in arc initiation device inside, do not need the extra control cable that increases to link to each other with the source of welding current, can with the use that matches of the inversion welding source with dropping characteristic, application popularization and compatibility have been improved greatly, simultaneously, control definite functions on the control panel PCB is controlled each stage procedure by simple relay work, and fault rate is low and efficient is high.
Preferably, control panel PCB is connected with the positive pole of the dc inversion source of welding current, the anodal welding work pieces that also is connected to simultaneously of the described dc inversion source of welding current.One end of the secondary windings of second level step-up transformer T3 is connected to the negative pole of the described dc inversion source of welding current, and the other end is connected to welding gun by the contact J3-1 of D.C. contactor J3.
Be more preferably, because the utility model is split type striking device, and can directly control the argon gas gas circuit, changed and original argon bottle has been linked to each other with inversion welding source, by inversion welding source argon gas is delivered to the mode of welding gun again. the utility model at welding post under source of welding current situation far away, only need to prolong welding cable, and do not need to increase argon-arc welding gun length, just can realize operation, reduced equipment cost greatly, improved the utilization rate of argon gas, and made the molten bath obtain better protection; Simultaneously, but because arc initiation device described in the utility model does not need just operate as normal of the control cable that is connected with source of welding current control circuit, so have high compatibility.
The utility model also has long and short weldering handoff functionality, it comprises that one switches switch S 4, this change-over switch S4 is connected in control panel PCB, need not to add in addition the control cable, the welding operator only need adjust the conversion that change-over switch S4 just can realize long and short weld seam on the utility model, for the occasion of long distance welding, the utility model is more suitable.
Below in conjunction with Fig. 1 concrete operation principle is described.
Connect power switch S1, the elementary winding of Industrial Frequency Transformer T1 inserts 3 phase 380V/50Hz electrical networks, T1 the level first winding output AC 20V voltage, deliver to relay contact J2-1, J2-2 one end through output dc voltage after the rectifier bridge Z1 rectification, D.C. contactor J3 coil is connected to relay switch J2-1, the J2-2 other end, when arc welding gun switch S3 access failure, J2-1, J2-2 are off-state.
The arc ignition circuit part is received the elementary winding of first order step-up transformer T2 two ends respectively by the first high-voltage capacitance C1 and relay contact J1-1, and inserts the 380V/50HZ electrical network.The T2 secondary windings second high-voltage capacitance C2 in parallel inserts the elementary winding of second level step-up transformer T3 behind the one termination SD M.Whereby, A, B two ends are inserted and are obtained a desirable high-voltage pulse thread-leading arc energy after 3 phase 380V/50Hz line voltages boost for twice through step-up transformer.When arc welding gun switch S3 access failure, the first relay contact J1-1 is an off-state.
Second level step-up transformer T3 secondary windings one termination inverter type welder output negative terminal, the other end is received welding gun through D.C. contactor contact J3-1, and the inverter type welder output plus terminal connects workpiece, and when the arc welding gun switch access failure, D.C. contactor contact J3-1 is an off-state.
The control panel PCB course of work is as follows: after connecting arc welding gun switch S3, first relay J 1 of joining with control panel PCB and second relay J 2 electric, behind the J1 coil electricity, its contact control makes magnetic valve QF coil electricity, and argon gas is delivered to welding gun, forms the welding gas circuit.Accordingly, above-mentioned relay contact J1-1, J2-1, J2-2 action switch to closure state by off-state.D.C. contactor coil J3 gets electric, D.C. contactor contact J3-1 closure; Arc ignition circuit A, B end is connected with the elementary winding of first order step-up transformer T2, forms striking voltage between welding gun and workpiece, and welding process begins.
Whereby, the utility model is when carrying out high-frequency arc strike, and control section can not be subjected to the interference of high-frequency signal, after the striking success, with the arc ignition portion outage, the work of the dc inversion source of welding current, so, reduced interference effect to the full extent to the dc inversion source of welding current.
In sum, the utility model comprises a control panel and an Industrial Frequency Transformer, by control panel circuit is controlled, the secondary windings of Industrial Frequency Transformer is divided into two groups at least, one group is connected with the D.C. contactor control circuit, another group is connected with control panel, power supply is provided for whereby D.C. contactor control circuit and control panel.Control panel welds gas circuit by control magnetic valve and then control, and controls arc ignition circuit generation high-voltage pulse signal by two relays and realize striking.Whereby, this split-type high frequency controller is rational in infrastructure, reliability is high, multifunction, can directly carry out gas circuit control, need not to add the control cable, can use with the inversion welding source coupling that great majority have a constant-current characteristics.
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the utility model.
Claims (9)
1. a split-type high frequency controller with dc inversion source of welding current adapted, is characterized in that described split-type high frequency controller comprises at least
One Industrial Frequency Transformer, the elementary winding of described Industrial Frequency Transformer is connected with the 380V/50Hz power supply by power switch, and the secondary windings of described Industrial Frequency Transformer is divided into first winding and second winding at least;
One direct current contactor control circuit, described D.C. contactor control circuit is connected with first winding of the secondary windings of described Industrial Frequency Transformer;
One is used for the control panel of function control, and described control panel is connected with second winding of described Industrial Frequency Transformer secondary windings;
One is used to realize welding the magnetic valve of gas circuit control, and described magnetic valve is connected with described control panel;
One is used to produce the arc ignition circuit of high-voltage pulse signal, and described arc ignition circuit is connected with the 380V/50Hz power supply.
2. split-type high frequency controller according to claim 1, it is characterized in that, described arc ignition circuit comprises first order step-up transformer and second level step-up transformer, the elementary winding of described first order step-up transformer is connected to the 380V/50Hz power supply by first high-voltage capacitance and first relay contact, and the secondary windings of described first order step-up transformer is connected in the elementary winding of described second level step-up transformer by a SD and second high-voltage capacitance.
3. split-type high frequency controller according to claim 1 and 2, it is characterized in that, one end of the secondary windings of described second level step-up transformer is connected to the negative pole of the described dc inversion source of welding current, and the other end is connected to welding gun by the contact of described D.C. contactor.
4. split-type high frequency controller according to claim 1, it is characterized in that, described D.C. contactor control circuit comprises a rectifier bridge, second relay contact, current-limiting resistance and D.C. contactor, described rectifier bridge is connected in first winding of the secondary windings of described Industrial Frequency Transformer, and is connected in series the formation loop respectively with described second relay contact, current-limiting resistance, D.C. contactor.
5. split-type high frequency controller according to claim 1, it is characterized in that, described split-type high frequency controller comprises first relay, second relay and is used to control the arc welding gun switch of described first relay and the second relay conducting that described first relay, second relay and arc welding gun switch all are connected in described control panel.
6. split-type high frequency controller according to claim 1 is characterized in that, the positive pole of the described dc inversion source of welding current is connected with welding work pieces with described control panel.
7. split-type high frequency controller according to claim 1 is characterized in that, described split-type high frequency controller comprises that one is used to realize the change-over switch of long weldering and short weldering conversion, and described change-over switch is connected in described control panel.
8. split-type high frequency controller according to claim 1 is characterized in that, described split-type high frequency controller comprises a gas testing switch, and described gas testing switch is connected in described control panel.
9. split-type high frequency controller according to claim 1 is characterized in that, described Industrial Frequency Transformer is a three-phase 380V/50Hz Industrial Frequency Transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200823802U CN201455506U (en) | 2009-07-08 | 2009-07-08 | Split high-frequency controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200823802U CN201455506U (en) | 2009-07-08 | 2009-07-08 | Split high-frequency controller |
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| CN201455506U true CN201455506U (en) | 2010-05-12 |
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| CN2009200823802U Expired - Fee Related CN201455506U (en) | 2009-07-08 | 2009-07-08 | Split high-frequency controller |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917812A (en) * | 2010-08-12 | 2010-12-15 | 兰卫国 | Metal halide lamp power supply and method for lighting metal halide lamp |
| CN102357723A (en) * | 2011-10-17 | 2012-02-22 | 无锡市南方电器制造有限公司 | Non-high-frequency arc ignition circuit of computer numerical control (CNC) plasma cutting machine |
| CN105101600A (en) * | 2014-05-23 | 2015-11-25 | 武汉天和技术股份有限公司 | Plasma operation control system |
| CN107052521A (en) * | 2017-01-09 | 2017-08-18 | 美高焊接设备（深圳）有限公司 | High-voltage dc pulse arc ignition circuit and welding machine |
-
2009
- 2009-07-08 CN CN2009200823802U patent/CN201455506U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917812A (en) * | 2010-08-12 | 2010-12-15 | 兰卫国 | Metal halide lamp power supply and method for lighting metal halide lamp |
| CN102357723A (en) * | 2011-10-17 | 2012-02-22 | 无锡市南方电器制造有限公司 | Non-high-frequency arc ignition circuit of computer numerical control (CNC) plasma cutting machine |
| CN105101600A (en) * | 2014-05-23 | 2015-11-25 | 武汉天和技术股份有限公司 | Plasma operation control system |
| CN107052521A (en) * | 2017-01-09 | 2017-08-18 | 美高焊接设备（深圳）有限公司 | High-voltage dc pulse arc ignition circuit and welding machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110708 |