CN108115250A - A kind of Multifunctional welding drive circuit - Google Patents

A kind of Multifunctional welding drive circuit Download PDF

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Publication number
CN108115250A
CN108115250A CN201711371760.3A CN201711371760A CN108115250A CN 108115250 A CN108115250 A CN 108115250A CN 201711371760 A CN201711371760 A CN 201711371760A CN 108115250 A CN108115250 A CN 108115250A
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output
full
capacitance
diode
output module
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CN201711371760.3A
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CN108115250B (en
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杨凯
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Zhejiang lawston Technology Co., Ltd
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ZHEJIANG LAOSHIDUN WELDING EQUIPMENT CO Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00Arc welding or cutting
    • B23K9/10Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006Power supply
    • B23K9/1043Power supply characterised by the electric circuit

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)

Abstract

The invention discloses a kind of Multifunctional welding drive circuit, transformer T4, transformer T4 is set to include at least one armature winding and at least two secondary windings in the driving circuit;Armature winding is connected with exchanging input, the output of first secondary windings exports DC voltage through full-bridge rectification output module, the output of second subprime winding exports DC voltage through full-wave rectification output module, wherein, second subprime winding sets center tap terminal, the center tap terminal is connected with the output negative terminal of full-bridge rectification output module and the output negative terminal of full-wave rectification output module, the output plus terminal of full-bridge rectification output module is as the first output plus terminal, and the output plus terminal of full-wave rectification output module is as the second output plus terminal.Compared with prior art, technical solution of the present invention saves material cost, has the characteristics of simple, easily realization, effect is good;The performance of Multi-functional arc welding generator is effectively raised in the case where not increasing cost, while reduces the failure rate of machine.

Description

A kind of Multifunctional welding drive circuit
Technical field
The present invention relates to electric welding machine circuit more particularly to one kind can be applied to welding electrode arc welding, argon tungsten-arc welding, etc. from The Multifunctional welding drive circuit of son cutting.
Background technology
In the prior art, electric welding machine is in the process of the metal materials such as steel, according to material properties and technique not Together, it will usually use the welding machine mode of multiple functions, while be also required to cut metal in some occasions, cut out.Cause This, has the first choice that the electric welding machine of a variety of welding functions and cutting function becomes many users.At present, Multi-functional arc welding generator What is used is mostly the multiplication of voltage and reduction voltage circuit of relay conversion, and it is uneven same to be susceptible to output voltage in actual use When relay contact burnt during frequent transitions the problems such as, so as to cause welding effect difference machine-spoiled rate height etc. simultaneously Bad phenomenon.
Fig. 1 is the driving circuit of traditional multifunctional welding machine, switches various working conditions by relay.In argon arc welding and hand When work welds working condition, relay J1B/J1C/J1D/J2B/J2C/J2D is connected to respective a ends, at this time transformer Grade output carries out full-wave rectification by respective rectifying tube, then in parallel, so as to obtain low output voltage simultaneously while can be defeated Go out big output current, be suitable for the welding function of argon arc welding and manual welding;In cutting machine working condition, relay J1B/ J1C/J1D/J2B/J2C/J2D is connected to respective b ends, and transformer secondary output output at this time is carried out by respective rectifying tube Then full-wave rectification is connected, so as to be done output voltage and to export small output current connection simultaneously, be suitable for plasma and cut Cut function.During three kinds of functions are realized, several windings of transformer output will carry out in parallel or in series, but each The voltage of winding reality output can not possibly be identical, therefore causes the voltage electricity of each winding output in practical work process Stream is uneven and influences the effect of welding and cutting, simultaneously as need to realize by the conversion of relay during function difference, from And the failure rate for adding machine reduces the stability of machine.
Therefore for drawbacks described above present in currently available technology, it is really necessary to be studied, to provide a kind of scheme, Solve defect in the prior art.
The content of the invention
In view of this, it is necessory to provide a kind of Multifunctional welding drive circuit, circuit complexity and cost are not being increased In the case of, the demand of welding or cutting can be reached simultaneously, the performance of Multi-functional arc welding generator is effectively raised, drop simultaneously The low failure rate of machine.
In order to solve technical problem existing in the prior art, technical scheme is as follows:
A kind of Multifunctional welding drive circuit sets in the driving circuit transformer T4, the transformer T4 to include at least One armature winding and at least two secondary windings;The armature winding is connected with exchanging input, and the first secondary windings is defeated Go out and export DC voltage through full-bridge rectification output module, the output of second subprime winding exports direct current through full-wave rectification output module Pressure, wherein, the second subprime winding sets center tap terminal, and the center tap terminal is defeated with the full-bridge rectification output module The output negative terminal for going out negative terminal with the full-wave rectification output module is connected, and the output plus terminal of the full-bridge rectification output module is made For the first output plus terminal, the output plus terminal of the full-wave rectification output module is as the second output plus terminal.
As preferred technical solution, the full-wave rectification output module includes diode D10, diode D19, capacitance C45 and current divider, the anode of the diode D10 are connected with the 6th pin of the second subprime winding, the diode The anode of D19 is connected with the 8th pin of the second subprime winding, negative terminal and the diode of the diode D10 The negative terminal of D19 is connected with one end of the capacitance C45 as the second output plus terminal, the other end of the capacitance C45 and shunting One end of device is connected as the first output negative terminal, the 7th pin of the other end of the current divider and the second subprime winding And the output negative terminal of the full-wave rectification output module is connected, wherein, during the 7th pin of the second subprime winding is Heart tap terminals.
As preferred technical solution, the full-wave rectification output module further includes capacitance C46 and variable resistor VR1.
As preferred technical solution, the full-bridge rectification output module uses bridge rectifier chip.
As preferred technical solution, the full-bridge rectification output module includes diode D11, diode D20, diode D18 and diode D21.
As preferred technical solution, the full-bridge rectification output module further include inductance L1, capacitance C47, capacitance C48, Capacitance C49, capacitance C50 and variable resistor VR2, wherein, one end and diode D20, the negative terminal of diode D21 of the inductance L1 It is connected, the other end and one end of capacitance C47, one end of capacitance C48, one end of capacitance C49, the variable resistor of the inductance L1 One end of VR2 is connected as the first output plus terminal;The other end of the capacitance C47, the other end, the variable resistor of capacitance C48 The other end of VR2 is connected jointly with the first output negative terminal;The other end of the capacitance C49, one end of capacitance C50 jointly with greatly Ground terminal is connected, and the other end of the capacitance C50 is connected with the second output plus terminal.
As preferred technical solution, it is negative as the second output to draw a quick socket in the described first output negative terminal End.
As preferred technical solution, first secondary windings is different with the number of turn of second subprime winding.
As preferred technical solution, the output voltage of first secondary windings is more than the defeated of the second subprime winding Go out voltage.
As preferred technical solution, the number of turn between the armature winding, the first secondary windings and second subprime winding Than for 10:16:4.
Compared with prior art, technical solution of the present invention saves material cost, has simple, easy realization, and effect is good The characteristics of;The performance of Multi-functional arc welding generator is effectively raised in the case where not increasing cost, while reduces the event of machine Barrier rate.
Description of the drawings
Fig. 1 is the circuit diagram of prior art multifunctional welding machine.
Fig. 2 is the circuit diagram of Multifunctional welding drive circuit of the present invention.
Specific examples below will be further illustrated the present invention with reference to above-mentioned attached drawing.
Specific embodiment
Graphene composite powder material provided by the invention and preparation method thereof is made furtherly below with reference to attached drawing It is bright.
Referring to Fig. 2, the circuit diagram of Multifunctional welding drive circuit of the present invention is shown, sets and becomes in the driving circuit Depressor T4, transformer T4 include at least one armature winding and at least two secondary windings;Armature winding is with exchanging the input phase Connection, the output of the first secondary windings export DC voltage through full-bridge rectification output module, and the output of second subprime winding is whole through all-wave Output module output DC voltage is flowed, wherein, second subprime winding sets center tap terminal, the center tap terminal and full-bridge rectification The output negative terminal of output module is connected with the output negative terminal of full-wave rectification output module, and the output of full-bridge rectification output module is just End is as the first output plus terminal, and the output plus terminal of full-wave rectification output module is as the second output plus terminal.Further, all-wave is whole Flowing output module includes diode D10, diode D19, capacitance C45 and current divider, the anode of diode D10 and second subprime around 6th pin of group is connected, and the anode of diode D19 is connected with the 8th pin of second subprime winding, diode D10's Negative terminal is connected with the negative terminal of diode D19 and one end of capacitance C45 as the second output plus terminal, the other end of capacitance C45 with One end of current divider is connected as the first output negative terminal, the other end of current divider and the 7th pin of second subprime winding and The output negative terminal of full-wave rectification output module is connected, wherein, tap terminals centered on the 7th pin of second subprime winding.Full-bridge Rectification output module includes diode D11, diode D20, diode D18 and diode D21.
Further, full-bridge rectification output module further includes inductance L1, capacitance C47, capacitance C48, capacitance C49, capacitance C50 With variable resistor VR2, wherein, one end of inductance L1 is connected with the negative terminal of diode D20, diode D21, and inductance L1's is another End is connected with one end of one end of capacitance C47, one end of capacitance C48, one end of capacitance C49, variable resistor VR2 as first Output plus terminal;The other end of capacitance C47, the other end of capacitance C48, the other end of variable resistor VR2 are jointly negative with the first output End is connected;The other end of capacitance C49, one end of capacitance C50 are connected jointly with big ground terminal, the other end of capacitance C50 and Two output plus terminals are connected.Meanwhile a quick socket is drawn as the second output negative terminal in the first output negative terminal.
In fig. 2, three windings, one of armature winding and two secondary windings are designed on main transformer.Two times Grade winding sets the different numbers of turn, to meet the use demand of different welding procedures.Wherein, 3 feet of transformer and 5 feet export Secondary voltage carries out full-bridge rectification by tetra- diodes of D11/D18/D20/D21, obtains higher DC output voltage, is suitble to In plasma cut function;In addition, by 6 foot of transformer, 7 foot, 8 foot output voltage and by D10/D19 carry out full-wave rectification, obtain To relatively low DC output voltage, it is suitable for argon arc welding and manual welding function;The negative terminal of two direct current outputs is connected simultaneously, shape The common port connected into welding gun, because argon tungsten-arc welding and plasma cut are required for gas and solder cutting gun, so as to entire machine Same gun joint can be only used in welding and cutting, simplifies the operation difficulty of welder.Then rectified current is drawn respectively again Ground wire connecting pin of the anode on road as welding and cutting.Negative terminal is exported simultaneously draws a quick socket as welding electrode arc welding The connecting pin of electrode holders.Full-bridge rectification and full-wave rectification are merged one, shunting by the present invention by a kind of cleverly circuit structure Device meets different application as common current limiting element by the secondary windings and multiple output interfaces that set different turn ratios Demand, therefore, present invention driver circuit can meet three kinds of welding electrode arc welding, argon tungsten-arc welding and plasma cut functions Use.The present invention saves material cost, has simple, easy to realize, the good spy of effect without using extra additional device Point;The performance of Multi-functional arc welding generator is effectively raised in the case where not increasing cost, while reduces the failure rate of machine.
The explanation of above example is only intended to help to understand method and its core concept of the invention.It should be pointed out that pair For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out Several improvement and modification, these improvement and modification are also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention. A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one The most wide scope caused.

Claims (10)

1. a kind of Multifunctional welding drive circuit, which is characterized in that transformer T4, the transformer T4 are set in the driving circuit Including at least one armature winding and at least two secondary windings;The armature winding is connected with exchanging input, for the first time The output of grade winding exports DC voltage through full-bridge rectification output module, and the output of second subprime winding is defeated through full-wave rectification output module Go out DC voltage, wherein, the second subprime winding sets center tap terminal, which exports with the full-bridge rectification The output negative terminal of module is connected with the output negative terminal of the full-wave rectification output module, the full-bridge rectification output module it is defeated Go out anode as the first output plus terminal, the output plus terminal of the full-wave rectification output module is as the second output plus terminal.
2. Multifunctional welding drive circuit according to claim 1, which is characterized in that the full-wave rectification output module bag Include diode D10, diode D19, capacitance C45 and current divider, the anode of the diode D10 and the second subprime winding 6th pin is connected, and the anode of the diode D19 is connected with the 8th pin of the second subprime winding, two pole The negative terminal of pipe D10 is connected with the negative terminal of the diode D19 and one end of the capacitance C45 as the second output plus terminal, institute The other end of capacitance C45 is stated to be connected with one end of current divider as the first output negative terminal, the other end of the current divider and institute The output negative terminal of the 7th pin and the full-wave rectification output module of stating second subprime winding is connected, wherein, described Tap terminals centered on 7th pin of secondary stage winding.
3. Multifunctional welding drive circuit according to claim 2, which is characterized in that the full-wave rectification output module is also Including capacitance C46 and variable resistor VR1.
4. Multifunctional welding drive circuit according to claim 1 or 2, which is characterized in that the full-bridge rectification exports mould Block uses bridge rectifier chip.
5. Multifunctional welding drive circuit according to claim 2, which is characterized in that the full-bridge rectification output module bag Include diode D11, diode D20, diode D18 and diode D21.
6. Multifunctional welding drive circuit according to claim 5, which is characterized in that the full-bridge rectification output module is also Including inductance L1, capacitance C47, capacitance C48, capacitance C49, capacitance C50 and variable resistor VR2, wherein, one end of the inductance L1 It is connected with the negative terminal of diode D20, diode D21, the other end of the inductance L1 and one end of capacitance C47, capacitance C48 One end, one end of capacitance C49, one end of variable resistor VR2 are connected as the first output plus terminal;The capacitance C47's is another End, the other end of the other end of capacitance C48, variable resistor VR2 are connected jointly with the first output negative terminal;The capacitance C49's The other end, one end of capacitance C50 are connected jointly with big ground terminal, and the other end of the capacitance C50 is connected with the second output plus terminal It connects.
7. Multifunctional welding drive circuit according to claim 6, which is characterized in that drawn in the described first output negative terminal One quick socket is as the second output negative terminal.
8. Multifunctional welding drive circuit according to claim 1 or 2, which is characterized in that first secondary windings and The number of turn of second subprime winding is different.
9. Multifunctional welding drive circuit according to claim 8, which is characterized in that the output of first secondary windings Voltage is more than the output voltage of the second subprime winding.
10. Multifunctional welding drive circuit according to claim 8, which is characterized in that the armature winding, first grade Turn ratio between winding and second subprime winding is 10:16:4.
CN201711371760.3A 2017-12-19 2017-12-19 A kind of Multifunctional welding drive circuit Active CN108115250B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111097999A (en) * 2019-12-30 2020-05-05 上海沪工焊接集团股份有限公司 Multifunctional power generation welding machine control system and use method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452994B3 (en) * 1979-04-05 1982-02-26 Messer Griesheim Gmbh
CN1557597A (en) * 2004-01-15 2004-12-29 沈阳工业大学 Multifunctional integrated welding and cutting equipment
US20140209586A1 (en) * 2013-01-29 2014-07-31 Shenzhen Jasic Technology Development Co., Ltd Portable igbt arc welding machine
CN104467513A (en) * 2014-12-05 2015-03-25 江门市保值久机电有限公司 Pulse type welder power circuit
CN204975634U (en) * 2015-09-30 2016-01-20 深圳华意隆电气股份有限公司 Welding set of soft switch of contravariant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2452994B3 (en) * 1979-04-05 1982-02-26 Messer Griesheim Gmbh
CN1557597A (en) * 2004-01-15 2004-12-29 沈阳工业大学 Multifunctional integrated welding and cutting equipment
US20140209586A1 (en) * 2013-01-29 2014-07-31 Shenzhen Jasic Technology Development Co., Ltd Portable igbt arc welding machine
CN104467513A (en) * 2014-12-05 2015-03-25 江门市保值久机电有限公司 Pulse type welder power circuit
CN204975634U (en) * 2015-09-30 2016-01-20 深圳华意隆电气股份有限公司 Welding set of soft switch of contravariant

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111097999A (en) * 2019-12-30 2020-05-05 上海沪工焊接集团股份有限公司 Multifunctional power generation welding machine control system and use method thereof
CN111097999B (en) * 2019-12-30 2022-03-11 上海沪工焊接集团股份有限公司 Multifunctional power generation welding machine control system and use method thereof

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Address after: Wenling city Taizhou town dock root of 317500 cities in Zhejiang province are mechanical industry

Patentee after: Zhejiang lawston Technology Co., Ltd

Address before: Wenling city Taizhou town dock root of 317527 cities in Zhejiang province are mechanical industry

Patentee before: ZHEJIANG LAOSHIDUN WELDING EQUIPMENT Co.,Ltd.

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Denomination of invention: Multifunctional welding machine driving circuit

Effective date of registration: 20200629

Granted publication date: 20191101

Pledgee: Zhejiang Tyrone commercial bank Limited by Share Ltd. Taizhou Wenling branch

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