CN110216355A - A kind of the multifunctional welding machine control circuit and method of automatic anti-high-frequency and high-voltage breakdown - Google Patents
A kind of the multifunctional welding machine control circuit and method of automatic anti-high-frequency and high-voltage breakdown Download PDFInfo
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- CN110216355A CN110216355A CN201910638918.1A CN201910638918A CN110216355A CN 110216355 A CN110216355 A CN 110216355A CN 201910638918 A CN201910638918 A CN 201910638918A CN 110216355 A CN110216355 A CN 110216355A
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- 238000003466 welding Methods 0.000 title claims abstract description 92
- 230000015556 catabolic process Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 16
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 55
- 238000002955 isolation Methods 0.000 claims abstract description 50
- 229910052786 argon Inorganic materials 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 27
- 238000009413 insulation Methods 0.000 claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 230000000903 blocking effect Effects 0.000 claims abstract description 10
- 238000010521 absorption reaction Methods 0.000 claims description 13
- 230000002265 prevention Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 12
- 238000010168 coupling process Methods 0.000 description 12
- 238000005859 coupling reaction Methods 0.000 description 12
- 238000005070 sampling Methods 0.000 description 11
- 239000003990 capacitor Substances 0.000 description 10
- 230000005611 electricity Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007493 shaping process 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
Abstract
The invention discloses the multifunctional welding machine control circuits and method of a kind of automatic anti-high-frequency and high-voltage breakdown, it includes rectification module that the circuit, which removes, protective module, inverter module, power circuit, control plate module, wire feeding circuit, wire feeding motor module and striking high-pressure modular, it further include anti-interference isolation module, connect the control plate module, wire feeding circuit, wire feeding motor module, for under control plate module control, the wire feeding motor module and the wire feeding circuit are subjected to insulation blocking, or the wire feeding circuit and the wire feeding motor module are connected to carry out nominal gas protection welding, the control plate module welds the switching of mode by the control realization welding machine of confrontation interference and insulation module and striking high-pressure modular in gas shielded arc welding mode and plasma argon arc, the present invention can eliminate high frequency when plasma argon arc is welded on high-frequency arc strike Harmonic wave, effectively prevention wire feeding motor drive part is breakdown or damages phenomenon.
Description
Technical field
The present invention relates to bonding machine technical fields, more particularly to a kind of multifunctional welding machine of automatic anti-high-frequency and high-voltage breakdown
Control circuit and method.
Background technique
Currently, the multifunctional welding machine (traditional multifunctional welding machine) of nothing in the prior art anti-High-frequency Interference automatically generally comprises
Plasma argon arc weldering and two functions of gas shielded arc welding.As shown in Figure 1, from circuit composition it is upper for, a kind of nothing anti-high frequency automatically
The multifunctional welding machine of interference includes rectification module 10, protective module 20, inverter module 30, striking high-pressure modular 40, power circuit
50, plate module 60, wire feeding circuit 70, wire feeding motor module 80 and welding gun and workpiece composition are controlled.Wherein, rectification module 10 by
Main switch K1, rectistack UR1, de-noising resistance R7 and filter capacitor C10-C13 composition are used for three-phase in main switch closure
Alternating current is converted to DC voltage；Protective module 20 is made of sampling transformer T3 and protection circuit, for flowing through inversion mould
The electric current of block 30 carries out sampling and is alarmed and protected when being more than given threshold；Inverter module 30 is by switching tube Q1-Q4, coupling
Close transformer T4, rectifying tube D1-D2 and de-noising resistance-capacitance network R1/C4, R2/C5, R3/C6, R4/C7, R5/C8, R6/C9 group
At being transmitted to welding gun after coupled and rectification for generating ac high-voltage under the control of the switching signal of control plate module 60
And welding is formed under the action of workpiece；Striking high-pressure modular 40 by high-frequency coupling transformer T1, striking high pressure generator HF, draw
Arc capacitor C3 and H.V. step up transformer T2 composition, for generating striking high pressure under the control of control plate module 60；Power supply electricity
Road 50, the DC voltage for exporting rectification module 10 are converted to the DC low-voltage (not shown) of system needs, protective module
20 carry out supply voltage needed for sampling required voltage and control plate module 60；Plate module 60 is controlled, for generating inverter module 30
Control voltage needed for required switching signal and striking high-pressure modular 40 (the striking signal of plasma argon arc weldering mode)；Wire feed electricity
Road 70, for providing driving voltage to wire feed motor module 80；Wire feeding motor module 80, for the driving in wire feed driving voltage
Lower completion wire feed；Welding is completed in welding gun and workpiece combination.
Traditional multifunctional welding machine is when plasma argon arc welds high-frequency arc strike, since welding machine is conspicuous up to hundreds of thousands using frequency
Hereby, voltage is up to the high-frequency and high-voltage of thousands of volts (such as 2500V), and breakdown the air gap forms electric arc, therefore high-frequency arc strike is one
A very strong harmonic wave interference source, there is a strong possibility causes to puncture or damage for this low-voltage direct-current 24V wire feeding circuit to same system
It is bad.
Summary of the invention
In order to overcome the deficiencies of the above existing technologies, purpose of the present invention is to provide a kind of automatic anti-high-frequency and high-voltages to hit
The multifunctional welding machine control circuit and method worn, to realize welding machine in gas shielded arc welding function and plasma argon arc by control panel
The work switching for welding function passes through anti-interference isolation module pair when electric welding machine switches in plasma argon arc welding high-frequency arc strike
Low-voltage wire feeding motor drive part and high-frequency arc ignition circuit part carry out electrical isolation, can effectively eliminate plasma argon arc weldering
The high-frequency harmonic in high-frequency arc strike is connect, effectively prevention wire feeding motor drive part is breakdown or damages phenomenon.
In order to achieve the above object, the present invention proposes a kind of multifunctional welding machine control circuit of automatic anti-high-frequency and high-voltage breakdown, packet
Rectification module, protective module, inverter module, power circuit, control plate module, wire feeding circuit are included, wire feeding motor module and is drawn
Camber die block, the control circuit further include:
Anti-interference isolation module connects the control plate module, wire feeding circuit, wire feeding motor module, in the control
Under the control of making sheet module, the wire feeding motor module and the wire feeding circuit are subjected to insulation blocking, or connect the wire feed electricity
Road and the wire feeding motor module are to carry out nominal gas protection welding；
The control plate module is for switching signal and the striking high-pressure modular institute needed for generating the inverter module
Voltage need to be controlled, and driving signal needed for generating the anti-interference isolation module, control the wire feeding circuit to the wire feed
Motor module provides driving voltage, and the control plate module passes through the control to the anti-interference isolation module and striking high-pressure modular
System realizes the welding machine in the switching of gas shielded arc welding mode and plasma argon arc weldering mode.
Preferably, when the welding machine works in plasma argon arc weldering mode, the control plate module controls the striking
High-pressure modular work, the anti-interference isolation module the control plate module control under by the wire feeding motor module with it is described
Wire feeding circuit carries out insulation blocking.
Preferably, when the welding machine works in gas shielded arc welding mode, it is high that the control plate module controls the striking
Die block does not work, and the anti-interference isolation module is connected the wire feeding circuit under control plate module control and described sent
Silk motor module is to carry out nominal gas protection welding.
Preferably, the input terminal of the anti-interference isolation module connects the output end of the wire feeding circuit, described anti-interference
The output end of isolation module connects the input terminal of the wire feeding motor module, and driving signal source interface connects the control template die
Block.
Preferably, the anti-interference isolation module includes at least two switching relays, the first Absorption Capacitance, the second absorption
Capacitor and driving signal source interface, one end of described two switching relays connects the output end of the wire feeding circuit, another
Output two-way output in end is connected to the input terminal of the wire feeding motor module, first Absorption Capacitance, the second Absorption Capacitance string
The two-way outlet chamber of the anti-interference isolation module, common end grounding are connected across after connection.
Preferably, the first output end of the control plate module connects the inverter module, and second output terminal is connected to institute
The input terminal of wire feeding circuit is stated, third output end is connected to the driving signal source interface of the anti-interference isolation module；4th is defeated
Outlet is connected to the primary of the H.V. step up transformer T2 of the striking high-pressure modular.
In order to achieve the above objectives, the present invention also provides a kind of multifunctional welding machine controlling parties of automatic anti-high-frequency and high-voltage breakdown
Method includes the following steps:
Step S1 detects the operating mode of welding machine；
Step S2 generates corresponding signal to inverter module, striking high-pressure modular, anti-according to the operating mode detected
Interference and insulation module and wire feeding circuit, to control the work of striking high-pressure modular, pass through the anti-interference isolation module for wire feed
Motor module and the wire feeding circuit carry out insulation blocking, or connect the wire feeding circuit and wire feeding motor module to carry out normally
Gas shielded welding.
Preferably, in step S2, if the operating mode detected is that plasma argon arc welds mode, the striking is controlled
High-pressure modular work controls the anti-interference isolation module and carries out the wire feeding motor module that guarantor is isolated with the wire feeding circuit
Shield.
Preferably, in step S2, if the operating mode detected is gas shielded arc welding mode, it is high to control the striking
Die block does not work, and controls the anti-interference isolation module and connects the wire feeding circuit and the wire feeding motor module to carry out just
Normal gas shielded welding.
Compared with prior art, the present invention a kind of the multifunctional welding machine control circuit and method of automatic anti-high-frequency and high-voltage breakdown
By realizing that welding machine switches between gas shielded arc welding mode and plasma argon arc weldering mode using control plate module, work as electric welding machine
When switching in plasma argon arc welding high-frequency arc strike, by anti-interference isolation module to low-voltage wire feeding motor drive part and height
Frequency striking arc circuit part carries out electrical isolation；High-frequency harmonic when plasma argon arc is welded on high-frequency arc strike can be effectively eliminated, is had
Prevention wire feeding motor drive part in effect ground is breakdown or damages phenomenon, improves the reliability of product.
Detailed description of the invention
Fig. 1 is the circuit structure diagram of multifunctional welding machine control circuit of the tradition without automatic anti-High-frequency Interference；
Fig. 2 is a kind of circuit structure diagram of the multifunctional welding machine control circuit of automatic anti-high-frequency and high-voltage breakdown of the present invention；
Fig. 3 is a kind of step flow chart of the multifunctional welding machine control method of automatic anti-high-frequency and high-voltage breakdown of the present invention.
Specific embodiment
Below by way of specific specific example and embodiments of the present invention are described with reference to the drawings, those skilled in the art can
Understand further advantage and effect of the invention easily by content disclosed in the present specification.The present invention can also pass through other differences
Specific example implemented or applied, details in this specification can also be based on different perspectives and applications, without departing substantially from
Various modifications and change are carried out under spirit of the invention.
Fig. 2 is a kind of circuit structure diagram of the multifunctional welding machine control circuit of automatic anti-high-frequency and high-voltage breakdown of the present invention.Such as
Shown in Fig. 2, a kind of multifunctional welding machine control circuit of automatic anti-high-frequency and high-voltage breakdown of the present invention, comprising: rectification module 10, protection
Module 20, inverter module 30, power circuit 40, control plate module 50, wire feeding circuit 60, anti-interference isolation module 70, wire feed electricity
Machine module 80 and striking high-pressure modular 90.
Wherein, rectification module 10 is by main switch K1, rectistack UR1, de-noising resistance R7 and filter capacitor C10-C13 group
At for three-phase alternating current to be converted to DC voltage when main switch is closed；Protective module 20 is by sampling transformer T3 and guarantor
Protection circuit composition, for carrying out sampling to the electric current for flowing through inverter module 30 and being alarmed and protected when being more than given threshold
Shield；Inverter module 30 is by switching tube Q1-Q4, coupling transformer T4, rectifying tube D1-D2 and de-noising resistance-capacitance network R1/C4, R2/
C5, R3/C6, R4/C7, R5/C8, R6/C9 composition are high for generating exchange under the control of the switching signal of control plate module 50
Pressure is transmitted to welding gun after coupled and shaping and forms welding torch under the action of workpiece, completes welding；Power circuit 40,
DC voltage for exporting rectification module 10 is converted to the DC low-voltage (not shown) of system needs, protective module 20 samples
Supply voltage needed for required voltage and control plate module 50；Plate module 50 is controlled, for switch needed for generating inverter module 30
Voltage is controlled needed for signal and striking high-pressure modular 90, and driving signal needed for generating anti-interference isolation module 70, control are sent
Silk circuit 60 provides driving voltage to wire feeding motor module 80 through anti-interference isolation module 70；Wire feeding circuit 60, for through anti-dry
The wire feeding motor that isolation module 70 is disturbed to wire feed motor module 80 provides driving voltage；Anti-interference isolation module 70 is by relay
KA1, Absorption Capacitance C1-C2 and driving signal source interface 1-2 composition, for that will draw when working in plasma argon arc weldering mode
The high-frequency and high-voltage and wire feeding circuit 60 of camber die block 90 carry out insulation blocking, and when working in gas shielded arc welding mode,
It selects to connect wire feeding circuit 60 and wire feeding motor module 80 under the triggering of switch to carry out nominal gas protection welding；Wire feeding motor
Module 80 is made of the wire feeding motor and output cord of direct current 24V, for completing wire feed under the driving of wire feed driving voltage；
Striking high-pressure modular 90 is by high-frequency coupling transformer T1, striking high pressure generator HF, striking capacitor C3 and H.V. step up transformer
T2 composition, for generating striking high pressure under the control of control plate module 50.
Three-phase alternating current is connected to the ac input end of rectistack UR1, the output plus terminal of rectistack UR1 after main switch K1
It is connected to the input terminal of power circuit 40 and one end of filter capacitor C10, C11, C13, one end of de-noising resistance R7 and sampling
Primary one end of transformer T3, the output negative terminal of rectistack UR1 be connected to filter capacitor C10, C13, de-noising resistance R7 it is another
Primary one end of one end, one end of filter capacitor C12 and sampling transformer T3, another termination of filter capacitor C11-C12
Ground；
The primary other end of sampling transformer T3 is connected to the collector of switching tube Q1, Q3, the transmitting of switching tube Q1, Q3
Pole is respectively connected to the collector of switching tube Q2, Q4, and the emitter of switching tube Q2, Q4 are connected to the output negative terminal of rectistack UR1,
It is connected across between the collector and emitter of switching tube Q1 after de-noising resistance-capacitance network R1/C4 series connection, de-noising resistance-capacitance network R2/C5 string
It is connected across after connection between the collector and emitter of switching tube Q2, is connected across switching tube Q3 after de-noising resistance-capacitance network R3/C6 series connection
Collector and emitter between, de-noising resistance-capacitance network R4/C7 series connection after be connected across switching tube Q4 collector and emitter it
Between, the base stage of switching tube Q1-Q4 is connected to the switching signal output end of control plate module 50, and (control first group of plate module 50 is defeated
Out), the collector of the emitter of switching tube Q1 and switching tube Q2 are connected to primary one end of coupling transformer T4, switching tube Q2
Emitter and the collector of switching tube Q4 be connected to the primary other end of coupling transformer T4, the secondary of coupling transformer T4
The rectified pipe D1 in one end be connected to welding gun, the secondary rectified pipe D2 of the other end of coupling transformer T4 is also connected to welding gun,
The secondary centre tap of coupling transformer T4 is connected to workpiece, de-noising resistance-capacitance network through the secondary of high-frequency coupling transformer T1
It is connected across between the anode and cathode of rectifying tube D1 after R5/C8 series connection, is connected across rectifying tube D2 after de-noising resistance-capacitance network R6/C9 series connection
Anode and cathode between；
The output of power circuit 40 is connected to the power input, sampling input terminal and control plate module 50 of protective module 20
Power input, secondary one end of sampling transformer T3 is connected to the input terminal of protective module 20, sampling transformer T3's
Secondary another termination simulates ground, and the output of protective module 20 is connected to an input terminal of control plate module 50；Control plate module
50 second output terminal is connected to the input terminal of wire feeding circuit 60, and the output end of wire feeding circuit 60 is connected to anti-interference isolation module
The third group output end of 70 input terminal, control plate module 50 is connected to the driving signal source interface of anti-interference isolation module 70；
The 4th group of output (the striking signal under plasma argon arc weldering mode) of control plate module 50 is connected to striking high-pressure modular 90
H.V. step up transformer T2 primary；
Primary one end of high-frequency coupling transformer T1 is connected and connect with secondary one end of H.V. step up transformer T2
To one end of striking high pressure generator HF, the primary other end of high-frequency coupling transformer T1 is by striking capacitor C3 and high pressure liter
The secondary other end of pressure transformer T2 is connected and is connected to the other end of striking high pressure generator HF；Anti-interference isolation module 70
Two-way output be connected to wire feeding motor module 80 wire feeding motor input terminal, Absorption Capacitance C1-C2 series connection after be connected across it is anti-
The two-way outlet chamber of interference and insulation module 70, the common end grounding of Absorption Capacitance C1-C2.
As it can be seen that the present invention realizes that gas shielded arc welding mode and plasma argon arc weld the switching of mode by control plate module,
When controlling plate module and switching in gas-shielded welding process, high-frequency arc ignition circuit part (striking high-pressure modular 90) not work
Make, anti-interference isolation module 70, wire feeding motor module 80 are working properly, and performance is stablized；And when control plate module switch in etc. from
When during sub- argon arc welding, control high-frequency arc ignition circuit part (striking high-pressure modular 90) work passes through anti-interference isolation mode
Switching relay KA1, Absorption Capacitance C1, C2 on block 70, driving signal source interface 1,2, to wire feeding motor module 80 and wire feed
Circuit 60 carries out electrical isolation, to avoid introducing high-frequency arc ignition circuit part (striking high-pressure modular by wire feeding motor module 80
90) it causes interference with and damages low-voltage circuit, can effectively eliminate high-frequency harmonic of the plasma argon arc welding machine in high-frequency arc strike, have
It prevents wire feeding motor drive part breakdown to effect or damage phenomenon, improves the reliability of product conscientiously.
Fig. 3 is a kind of step flow chart of the multifunctional welding machine control method of automatic anti-high-frequency and high-voltage breakdown of the present invention.Such as
Shown in Fig. 3, a kind of multifunctional welding machine control method of automatic anti-high-frequency and high-voltage breakdown of the present invention includes the following steps:
Step S1 detects the operating mode of welding machine.In the specific embodiment of the invention, the operating mode of welding machine includes but not
It is limited to gas shielded arc welding mode and plasma argon arc welds two kinds of mode.It specifically, can be in being provided with corresponding Working mould on welding machine
Formula switch, when pressing corresponding operating switch, control plate module detects corresponding operating mode.
Step S2 generates corresponding signal to inverter module, striking high-pressure modular, anti-according to the operating mode detected
Interference and insulation module and wire feeding circuit, control striking high-pressure modular work, by anti-interference isolation module by wire feeding motor mould
Block and the wire feeding circuit carry out insulation blocking, or connect the wire feeding circuit and wire feeding motor module to carry out nominal gas guarantor
Shield welding.Specifically, when detecting gas shielded arc welding mode, control striking high-pressure modular does not work, anti-interference isolation module,
Wire feeding motor module is working properly, carries out nominal gas protection welding；When detecting plasma argon arc weldering mode, striking is controlled
Wire feeding motor module and wire feeding circuit are carried out insulation blocking using anti-interference isolation module by high-pressure modular work, control, thus
It avoids introducing high-frequency arc ignition circuit part by wire feeding motor module and causes interference with and damage low-voltage circuit, that is, pass through anti-interference isolation
Switching relay KA1, Absorption Capacitance C1, C2 in module, driving signal source interface 1,2, to wire feeding motor module and wire feed electricity
Road carries out electrical isolation, can effectively eliminate high-frequency harmonic of the plasma argon arc welding machine in high-frequency arc strike, effectively prevents
Wire feeding motor drive part is breakdown or damages phenomenon, improves the reliability of product.
In conclusion the multifunctional welding machine control circuit and method of a kind of automatic anti-high-frequency and high-voltage breakdown of the present invention pass through benefit
Realize that welding machine switches between gas shielded arc welding mode and plasma argon arc weldering mode with control plate module, when electric welding machine switches in
When plasma argon arc welds high-frequency arc strike, by anti-interference isolation module to low-voltage wire feeding motor drive part and high-frequency arc strike
Circuit part carries out electrical isolation；High-frequency harmonic when plasma argon arc is welded on high-frequency arc strike can be effectively eliminated, effectively in advance
Anti- wire feeding motor drive part is breakdown or damages phenomenon, improves the reliability of product.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.Any
Without departing from the spirit and scope of the present invention, modifications and changes are made to the above embodiments by field technical staff.Therefore,
The scope of the present invention, should be as listed in the claims.
Claims (9)
1. a kind of multifunctional welding machine control circuit of automatic anti-high-frequency and high-voltage breakdown, including rectification module, protective module, inversion mould
Block, power circuit, control plate module, wire feeding circuit, wire feeding motor module and striking high-pressure modular, which is characterized in that described
Control circuit further include:
Anti-interference isolation module connects the control plate module, wire feeding circuit, wire feeding motor module, in the control panel
Under module control, the wire feeding motor module and the wire feeding circuit are subjected to insulation blocking, or connect the wire feeding circuit and
The wire feeding motor module is to carry out nominal gas protection welding；
The control plate module is for control needed for switching signal and the striking high-pressure modular needed for generating the inverter module
Voltage processed, and driving signal needed for generating the anti-interference isolation module, control the wire feeding circuit to the wire feeding motor
Module provides driving voltage, and the control plate module is real by the control to the anti-interference isolation module and striking high-pressure modular
Switching of the existing welding machine in gas shielded arc welding mode and plasma argon arc weldering mode.
2. a kind of multifunctional welding machine control circuit of automatic anti-high-frequency and high-voltage breakdown as described in claim 1, it is characterised in that:
When the welding machine works in plasma argon arc weldering mode, the control plate module controls the striking high-pressure modular work, institute
State anti-interference isolation module under control plate module control by the wire feeding motor module and the wire feeding circuit carry out every
From protection.
3. a kind of multifunctional welding machine control circuit of automatic anti-high-frequency and high-voltage breakdown as claimed in claim 2, it is characterised in that:
When the welding machine works in gas shielded arc welding mode, the control plate module controls the striking high-pressure modular and does not work, institute
State anti-interference isolation module the control plate module control under connect the wire feeding circuit and the wire feeding motor module with into
The protection welding of row nominal gas.
4. a kind of multifunctional welding machine control circuit of automatic anti-high-frequency and high-voltage breakdown as claimed in claim 3, it is characterised in that:
The input terminal of the anti-interference isolation module connects the output end of the wire feeding circuit, the output end of the anti-interference isolation module
The input terminal of the wire feeding motor module is connected, driving signal source interface connects the control plate module.
5. a kind of multifunctional welding machine control circuit of automatic anti-high-frequency and high-voltage breakdown as claimed in claim 4, it is characterised in that:
The anti-interference isolation module includes at least two switching relays, the first Absorption Capacitance, the second Absorption Capacitance and driving letter
Number source interface, one end of described two switching relays connect the output end of the wire feeding circuit, and the other end exports two-way output
It is connected to the input terminal of the wire feeding motor module, is connected across after first Absorption Capacitance, the series connection of the second Absorption Capacitance described
The two-way outlet chamber of anti-interference isolation module, common end grounding.
6. a kind of multifunctional welding machine control circuit of automatic anti-high-frequency and high-voltage breakdown as claimed in claim 5, it is characterised in that:
First output end of the control plate module connects the inverter module, and second output terminal is connected to the input of the wire feeding circuit
End, third output end are connected to the driving signal source interface of the anti-interference isolation module；4th output end is connected to described draw
The primary of the H.V. step up transformer T2 of camber die block.
7. a kind of multifunctional welding machine control method of automatic anti-high-frequency and high-voltage breakdown, includes the following steps:
Step S1 detects the operating mode of welding machine；
Step S2 generates corresponding signal to inverter module, striking high-pressure modular, anti-interference according to the operating mode detected
Isolation module and wire feeding circuit, to control the work of striking high-pressure modular, by the anti-interference isolation module by wire feeding motor
Module and the wire feeding circuit carry out insulation blocking, or connect the wire feeding circuit and wire feeding motor module to carry out nominal gas
Protection welding.
8. a kind of multifunctional welding machine control method of automatic anti-high-frequency and high-voltage breakdown as claimed in claim 7, it is characterised in that:
In step S2, if the operating mode detected is that plasma argon arc welds mode, the striking high-pressure modular work, control are controlled
It makes the anti-interference isolation module and the wire feeding motor module and the wire feeding circuit is subjected to insulation blocking.
9. a kind of multifunctional welding machine control method of automatic anti-high-frequency and high-voltage breakdown as claimed in claim 8, it is characterised in that:
It in step S2, if the operating mode detected is gas shielded arc welding mode, controls the striking high-pressure modular and does not work, control
It makes the anti-interference isolation module and connects the wire feeding circuit and the wire feeding motor module to carry out nominal gas protection welding.
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| CN201910638918.1A CN110216355A (en) | 2019-07-16 | 2019-07-16 | A kind of the multifunctional welding machine control circuit and method of automatic anti-high-frequency and high-voltage breakdown |
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| CN201910638918.1A CN110216355A (en) | 2019-07-16 | 2019-07-16 | A kind of the multifunctional welding machine control circuit and method of automatic anti-high-frequency and high-voltage breakdown |
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