CN102773585A - Circuit for reducing high frequency and high pressure of argon arc welding and method thereof - Google Patents
Circuit for reducing high frequency and high pressure of argon arc welding and method thereof Download PDFInfo
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- CN102773585A CN102773585A CN2012102834117A CN201210283411A CN102773585A CN 102773585 A CN102773585 A CN 102773585A CN 2012102834117 A CN2012102834117 A CN 2012102834117A CN 201210283411 A CN201210283411 A CN 201210283411A CN 102773585 A CN102773585 A CN 102773585A
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Abstract
The invention relates to a circuit for reducing the high frequency and the high pressure of the argon arc welding. The circuit comprises a rectification circuit, an inverter circuit, a voltage transformation circuit, a pressurizing circuit, an LC oscillating circuit, a high frequency and high pressure output circuit, a drive circuit, a switching circuit, an auxiliary power supply circuit pressurizing circuit, a relay JD, a main control circuit, a voltage detection module and a control system, wherein the rectification circuit is connected with a power grid electromagnetic compatibility (EMC) circuit, the inverter circuit, the voltage transformation circuit, the pressurizing circuit, the LC oscillating circuit, the high frequency and high pressure output circuit are connected in sequence, the drive circuit is connected with the inverter circuit, the switching circuit is connected with the drive circuit, the auxiliary power supply circuit pressurizing circuit is connected with the switching circuit and the drive circuit, the voltage transformation circuit is a high frequency transformer, a primary side of the high frequency transformer is connected with the inverter circuit, an auxiliary side is connected with the pressurizing circuit, one end of a main contact of the relay JD is connected with the auxiliary side of the high frequency transformer, the other side is connected with the pressurizing circuit, the main control circuit is connected with a main coil of the relay JD, the voltage detection module is connected with the high frequency and high pressure output circuit, and the control system is connected with the switching circuit and the main control circuit. According to the circuit for reducing the high frequency and the high pressure of the argon arc welding, interferences caused by high-frequency currents and damages to welding sources needed by high frequency arcing are prevented, and machine safety is guaranteed.
Description
[technical field]
The present invention relates to a kind of argon arc welding, reduce the circuit and the method thereof of high-frequency and high-voltage in particularly a kind of argon arc welding.
[background technology]
The argon arc welding technology is on the basis of the principle of common electrical arc-welding; Utilize the protection of argon gas, make wlding be melted into the liquid bath that forms on the base material by weldering, make a kind of solder technology that is reached metallurgical binding by weldering metal and wlding through big electric current to the metal wlding; Owing in the high-temperature fusion welding, constantly serve argon gas; Wlding can not be contacted with airborne oxygen, thereby prevented the oxidation of wlding, therefore can soldering copper, non-ferrous metals such as aluminium, steel alloy.
Existing high-frequency high-voltage circuit mainly is divided into and utilizes booster transformer to boost and utilize the voltage-multiplying circuit dual mode that boosts; Below said be to utilize the high-frequency and high-voltage striking technology that booster transformer boosts, it is mainly used in argon arc welding machine and the cutting machine that adopts the high-frequency and high-voltage striking.In the source of welding current that is applied to the high-frequency and high-voltage arc initiation device, including high-voltage power circuit, booster circuit, hand switch circuit, high-frequency and high-voltage opens/breaking circuit and control circuit; This high voltage source mainly is to be produced by the welder high-frequency main transformer; Welding machine is not worked, and high-pressure installation also so not can start; Booster circuit is formed through booster transformer transformation and impulse electricity electric capacity; The hand switch circuit is the basis with specific AC power, after rectification, filtering, isolates through optocoupler and control circuit; High-frequency and high-voltage opens/and breaking circuit mainly forms through the actuating of relay; After the hand switch signal produces; Welding machine is started working; The relay adhesive, high voltage source is that booster transformer provides former limit AC power by main transformer through relay, guarantees machine initial arc for striking device two ends through several kilovolts of high pressure that the booster transformer transformation is produced; Control circuit is for supercharging plays arc circuit, is mainly used in floating voltage machine on the low side, designs in order to increase starting the arc success rate, and the signal that input signal is taken a sample about about 100V in the former volume of main transformer is added to output through full-wave rectification; Under the Light Condition, be equivalent to reach the purpose of supercharging to voltage of output stack; After getting into welded condition, because the output arc voltage is dragged down, the transistor base current potential is dragged down; Relay breaks off, and high frequency and supercharging starting the arc circuitry cuts are inoperative; To sum up, in the prior art, the shortcoming of existence mainly contains: (one), traditional source of welding current do not have good anti-high-voltage earthing device, and the output floating voltage is higher to some extent, and welding machine in use might bring hidden danger to operator's personal safety; (2), in the starting the arc high pressure of argon arc welding with high frequency, it is improper to protect, the rectifying tube of high-frequency high-voltage current in just can the rectification of reverse breakdown secondary, even damage the circuit that the main transformer primary coil is connected; (3), the hand switch circuit is because of linking to each other with output, so hand switch place circuit should be isolated with main circuit, control circuit, auxiliary power circuit, prevents that the output high frequency from sealing in the hand switch circuit and making whole welding machine circuit produce serious disturbance; (4), conventional inversion welding source do not accomplish integratedly in ground connection and anti-High-frequency Interference, make not science of welding machine back panel wiring, influence whole inside and walk Wiring technology.
[summary of the invention]
The security performance that existing argon arc welding exists is low in order to overcome, be prone to produce with high frequency, welding machine circuit in the starting the arc high pressure and disturb and integrated low technical problem, and first purpose of the present invention is providing a kind of circuit that reduces the argon arc welding high-frequency and high-voltage
Second purpose of the present invention is to provide a kind of circuit according to above-mentioned reduction argon arc welding high-frequency and high-voltage to realize reducing the method for argon arc welding high-frequency and high-voltage.
The present invention solves the technical scheme that above-mentioned first technical problem adopted:
A kind of circuit that reduces the argon arc welding high-frequency and high-voltage is provided, comprises:
The rectification circuit that input is connected with electrical network EMC circuit;
The inverter circuit that is connected with said rectification circuit output end;
The transforming circuit and the drive circuit that are connected with said inverter circuit;
The boost pressure circuit that is connected with said transforming circuit;
The LC oscillating circuit that is connected with said boost pressure circuit;
The high-frequency and high-voltage output circuit that is connected with said LC oscillating circuit;
The on-off circuit that is connected with said drive circuit;
And, the auxiliary power circuit that is connected with said on-off circuit and drive circuit respectively;
Said boost pressure circuit is a high frequency transformer, and the former limit of said high frequency transformer is connected with the inverter circuit output, and said high frequency transformer secondary links to each other with boost pressure circuit; And, also comprise:
Main contacts one end is connected with the high frequency transformer secondary, the relay J D that the other end is connected with boost pressure circuit;
The main control circuit that is connected with said relay J D main coil;
The voltage detection module that is connected with said main output circuit;
The control system that is connected with said on-off circuit and main control circuit.
According to a preferred embodiment of the invention: the secondary of said high frequency transformer comprises the first secondary windings N1, second subprime winding N2 and level winding N3 for the third time; The said first secondary windings N1, second subprime winding N2 are connected with the high-frequency and high-voltage output circuit, and the said winding of level for the third time N3 is connected with boost pressure circuit through relay J D.
According to a preferred embodiment of the invention: said high frequency transformer is the ultracrystallite transformer.
According to a preferred embodiment of the invention: said boost pressure circuit comprises absorption resistance R5, capacitor C 2 and booster transformer T; Said absorption resistance R5 one end, capacitor C 2 one ends are connected with the high frequency transformer secondary first secondary windings N1 one end; The absorption resistance R5 other end, capacitor C 2 other ends are connected with the former limit of booster transformer T one end; Said relay J D main contacts one end is connected with the high frequency transformer secondary first secondary windings N1 other end; The main contacts other end is connected with the former limit of the booster transformer T other end, and main coil is connected with main control circuit.
According to a preferred embodiment of the invention: said LC oscillating circuit comprises electric capacity (C3-C5), the first current-limiting resistance R6, discharge mouth FDZ and striking coil; Said electric capacity (C3-C5) end is connected with booster transformer T secondary one end; The other end is connected with discharge mouth FDZ one end; The said first current-limiting resistance R6, one end is connected with the booster transformer T secondary other end, and the first current-limiting resistance R6 other end is connected with the discharge mouth FDZ other end, and said striking coil one side is connected with discharge mouth FDZ.
According to a preferred embodiment of the invention: said high-frequency and high-voltage output circuit comprises argon arc welding output plus terminal, argon arc welding output negative terminal and hand weldering output plus terminal; Said argon arc welding output plus terminal is connected with high frequency transformer secondary second subprime winding N2 one end; Said hand weldering output plus terminal respectively through diode and high frequency transformer secondary for the third time level winding N3 one end, the first secondary windings N1 other end is connected, said argon arc welding is exported negative terminal and is welded output plus terminal through striking coil opposite side and hand and be connected.
According to a preferred embodiment of the invention: said on-off circuit comprises resistance (R4, R65, R66, R67, R68, R99), Zener diode (D5, D7, D8), transformer T1, shunt resistance R2, diode (D1-D4, D6, D33), filter resistance R3, filter capacitor C1, the second current-limiting resistance R1, optocoupler U1, triode (Q1-Q2), electric capacity (C14, C15), inductance (L2, L3); Said resistance R 4 one ends are connected with AC power AC; Resistance R 4 other ends are connected with the former limit of transformer T1 one end, Zener diode D7 anode respectively; Zener diode D7 negative electrode is connected with Zener diode D8 negative electrode; Zener diode D8 anode is connected with shunt resistance R2 one end, AC power AC; The shunt resistance R2 other end is connected with the former limit of the transformer T1 other end; Said transformer T1 secondary is connected with hand switch CON1; Said diode (D1-D4) is parallelly connected with shunt resistance R2, and said filter resistance R3, filter capacitor C1 are parallelly connected with diode (D1-D4) respectively, and said filter resistance R3 one end, filter capacitor C1 positive pole are connected with optocoupler U1 input one side through Zener diode D5, the second current-limiting resistance R1; The said filter resistance R3 other end, filter capacitor C1 negative pole are connected with optocoupler U1 input opposite side; Said optocoupler U1 output one side is connected with diode D6 negative electrode, triode Q1 colelctor electrode, and optocoupler U1 output opposite side is connected with triode Q1 base stage, and said diode D6 anode is connected with inductance L 3 one ends; Triode Q1 emitter stage is connected with inductance L 2 one ends; Inductance L 3 other ends are connected with resistance R 66 1 ends, capacitor C 14 1 ends, and inductance L 2 other ends are connected with capacitor C 14 other ends, resistance (R65, a R99) end, and said resistance R 67 1 ends, diode D33 negative electrode, capacitor C 15 1 ends are connected with resistance R 99 other ends, diode Q2 base stage respectively; Resistance R 67 other ends, diode D33 anode, capacitor C 15 other ends are connected with resistance R 65 other ends, diode Q2 emitter stage respectively, and said diode Q2 colelctor electrode is connected with resistance R 68, control system.
According to a preferred embodiment of the invention: said high-frequency and high-voltage output circuit also is connected with pressure limiting circuit; Said pressure limiting circuit comprises Wiring port (PCON1-PCON4), piezo-resistance (R7-R14), resistance (R15-R17), electric capacity (C6-C11); Said Wiring port PCON1 is connected with Remote; Said Wiring port PCON2 is connected with the argon arc welding output plus terminal; Said Wiring port PCON3 is connected with argon arc welding output negative terminal, and said Wiring port PCON4 is connected with hand weldering output plus terminal, and said piezo-resistance (R7-R14) is connected in series; The one of which end is connected with Wiring port PCON3; The other end is connected with Wiring port PCON3, electric capacity (C9-C11) end, resistance R 17 1 ends, and said resistance (R15-R16) end is connected with electric capacity (C10-C11) other end, and the other end is connected with electric capacity (C6-C8) end; Electric capacity (C7-C8) other end is connected with capacitor C 9 other ends, resistance R 17 other ends and Wiring port PCON2, and capacitor C 6 other ends are connected with Wiring port PCON1.
According to a preferred embodiment of the invention: said control system is that model is the control chip of LPC2134.
According to a preferred embodiment of the invention: the turn ratio of former limit of said transformer T1 and secondary is 1:1.
According to a preferred embodiment of the invention: said main control circuit comprises current-limiting resistance (R207, R73), triode Q13, high frequency relay K1; Said current-limiting resistance R207 one end is connected with control system 12; The other end is connected with triode Q13 base stage through current-limiting resistance R73; Said triode Q13 colelctor electrode is connected with high frequency relay K1 coil, and said high frequency relay K1 main contacts is connected with relay J D main coil.
According to a preferred embodiment of the invention: said voltage detection module comprises inserted sheet CP1 and the inserted sheet CP2 that is connected to striking coil one side two ends.
The present invention solves the technical scheme that above-mentioned second technical problem adopted:
A kind of method that reduces the argon arc welding high-frequency and high-voltage is provided, may further comprise the steps: said on-off circuit cuts out, and circuit is not worked; Said on-off circuit is opened, circuit working;
The concrete steps of said circuit working comprise:
The first step, driving circuit drives inverter circuit are done;
Second step, said on-off circuit output low level signal gives the control system, and said control system output high level signal gives main control circuit, said main control circuit output control relay JD closure signal;
The 3rd step, said high frequency transformer secondary are communicated with boost pressure circuit, and said boost pressure circuit is to the supercharging of said high frequency transformer secondary output voltage;
The 4th step, said boost pressure circuit output high tension voltage, the said LC oscillating circuit of process produces the voltage of said high-frequency and high-voltage, and said high-frequency and high-voltage voltage is through high-frequency and high-voltage output circuit output services;
The 5th step, said voltage detection module detect the voltage of said high-frequency and high-voltage output circuit;
Closure and the disconnection of the Control of Voltage relay J D that the 6th step, said control system are detected according to voltage detection module.
According to a preferred embodiment of the invention: said the 6th step specifically may further comprise the steps:
1), that said voltage detection module detects the output voltage of said high-frequency and high-voltage output circuit is constant, the control system is failure to actuate;
2), the said voltage detection module output voltage that detects said high-frequency and high-voltage output circuit reduces, control system output low level signal gives main control circuit, main control circuit output control relay JD cut-off signal.
With respect to prior art, beneficial effect of the present invention is:
1, the present invention adopts the transforming circuit of high frequency transformer; And be connected with boost pressure circuit through relay; Closure through control system and master control circuit controls relay realizes being communicated with and disconnection of transforming circuit and boost pressure circuit with breaking off; Effectively prevent the interference that high frequency electric brings, and the source of welding current that needs the high frequency starting the arc has been caused damage, guaranteed the safe in utilization of machine;
What 2, the requirement of butt welding machine was strict in the check of national standard safety pattern, machine meets the requirements of the standard through safety test and safety testing, has improved the security performance when product uses;
3, circuit volume of the present invention is little, in light weight, components and parts are simple, integrated level is high, cost is low and easy to connect; Made things convenient for the user to a great extent; Reduced simultaneously output unloaded, stablized weldingvoltage, the stability and the security of the source of welding current also had improvement significantly.
[description of drawings]
Fig. 1. the system framework figure of the circuit of reduction argon arc welding high-frequency and high-voltage of the present invention;
Fig. 2. the present invention reduces the circuit diagram of the circuit of argon arc welding high-frequency and high-voltage;
Fig. 3. the present invention reduces the on-off circuit figure of the circuit of argon arc welding high-frequency and high-voltage;
Fig. 4. the present invention reduces the pressure limiting circuit figure of the circuit of argon arc welding high-frequency and high-voltage;
Fig. 5. the present invention reduces the method flow diagram of argon arc welding high-frequency and high-voltage.
[specific embodiment]
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Consult shown in Figure 1ly, the present invention provides a kind of circuit that reduces the argon arc welding high-frequency and high-voltage, comprising:
The rectification circuit 1 that input is connected with electrical network EMC circuit;
The inverter circuit 2 that is connected with said rectification circuit 1 output;
The transforming circuit 3 and the drive circuit 8 that are connected with said inverter circuit 2;
The boost pressure circuit 4 that is connected with said transforming circuit 3;
The LC oscillating circuit 5 that is connected with said boost pressure circuit 4;
The high-frequency and high-voltage output circuit 6 that is connected with said LC oscillating circuit 5;
The on-off circuit 7 that is connected with said drive circuit 8;
And, the auxiliary power circuit 9 that is connected with said on-off circuit 7 and drive circuit 8 respectively;
Said boost pressure circuit 3 is a high frequency transformer, and the former limit of said high frequency transformer is connected with inverter circuit 2 outputs, and said high frequency transformer secondary links to each other with boost pressure circuit 4; And, also comprise:
Main contacts one end is connected with the high frequency transformer secondary, the relay J D that the other end is connected with boost pressure circuit 4;
The main control circuit 10 that is connected with said relay J D main coil;
Go out the voltage detection module 11 that output circuit is connected with the master;
With the control system 12 that said on-off circuit 7 and main control circuit 10 are connected, wherein controlling system 12 is that model is the control chip of LPC2134.
Consult shown in Figure 2; Wherein, The secondary of said high frequency transformer comprises the first secondary windings N1, second subprime winding N2 and level winding N3 for the third time; The said first secondary windings N1, second subprime winding N2 are connected with high-frequency and high-voltage output circuit 6, and the said winding of level for the third time N3 is connected with boost pressure circuit 4 through relay J D, and wherein said high frequency transformer is the ultracrystallite transformer.
Said main control circuit 10 comprises current-limiting resistance (R207, R73), triode Q13, high frequency relay K1; Said current-limiting resistance R207 one end is connected with control system 12; The other end is connected with triode Q13 base stage through current-limiting resistance R73; Said triode Q13 colelctor electrode is connected with high frequency relay K1 coil, and said high frequency relay K1 main contacts is connected with relay J D main coil.
In addition; Said boost pressure circuit 4 comprises absorption resistance R5, capacitor C 2 and booster transformer T; Said absorption resistance R5 one end, capacitor C 2 one ends are connected with the high frequency transformer secondary first secondary windings N1 one end; The absorption resistance R5 other end, capacitor C 2 other ends are connected with the former limit of booster transformer T one end; Said relay J D main contacts one end is connected with the high frequency transformer secondary first secondary windings N1 other end, and the main contacts other end is connected with the former limit of the booster transformer T other end, and main coil is connected with main control circuit 10; Described LC oscillating circuit 5 comprises electric capacity (C3-C5), the first current-limiting resistance R6, discharge mouth FDZ and striking coil; Said electric capacity (C3-C5) end is connected with booster transformer T secondary one end; The other end is connected with discharge mouth FDZ one end; The said first current-limiting resistance R6, one end is connected with the booster transformer T secondary other end, and the first current-limiting resistance R6 other end is connected with the discharge mouth FDZ other end, and said striking coil one side is connected with discharge mouth FDZ; Described high-frequency and high-voltage output circuit 6 comprises argon arc welding output plus terminal, argon arc welding output negative terminal and hand weldering output plus terminal; Said argon arc welding output plus terminal is connected with high frequency transformer secondary second subprime winding N2 one end; Said hand weldering output plus terminal respectively through diode and high frequency transformer secondary for the third time level winding N3 one end, the first secondary windings N1 other end is connected, said argon arc welding is exported negative terminal and is welded output plus terminal through striking coil opposite side and hand and be connected.
Consult shown in Figure 3; Described on-off circuit 7 comprises resistance (R4, R65, R66, R67, R68, R99), Zener diode (D5, D7, D8), transformer T1, shunt resistance R2, diode (D1-D4, D6, D33), filter resistance R3, filter capacitor C1, the second current-limiting resistance R1, optocoupler U1, triode (Q1-Q2), electric capacity (C14, C15), inductance (L2, L3); Said resistance R 4 one ends are connected with AC power AC; Resistance R 4 other ends are connected with the former limit of transformer T1 one end, Zener diode D7 anode respectively; Zener diode D7 negative electrode is connected with Zener diode D8 negative electrode; Zener diode D8 anode is connected with shunt resistance R2 one end, AC power AC; The shunt resistance R2 other end is connected with the former limit of the transformer T1 other end, and said transformer T1 secondary is connected with hand switch CON1, and said diode (D1-D4) is parallelly connected with shunt resistance R2; Said filter resistance R3, filter capacitor C1 are parallelly connected with diode (D1-D4) respectively; Said filter resistance R3 one end, filter capacitor C1 positive pole are connected with optocoupler U1 input one side through Zener diode D5, the second current-limiting resistance R1, and the said filter resistance R3 other end, filter capacitor C1 negative pole are connected with optocoupler U1 input opposite side, and said optocoupler U1 output one side is connected with diode D6 negative electrode, triode Q1 colelctor electrode; Optocoupler U1 output opposite side is connected with triode Q1 base stage; Said diode D6 anode is connected with inductance L 3 one ends, and triode Q1 emitter stage is connected with inductance L 2 one ends, and inductance L 3 other ends are connected with resistance R 66 1 ends, capacitor C 14 1 ends; Inductance L 2 other ends are connected with capacitor C 14 other ends, resistance (R65, a R99) end; Said resistance R 67 1 ends, diode D33 negative electrode, capacitor C 15 1 ends are connected with resistance R 99 other ends, diode Q2 base stage respectively, and resistance R 67 other ends, diode D33 anode, capacitor C 15 other ends are connected with resistance R 65 other ends, diode Q2 emitter stage respectively, and said diode Q2 colelctor electrode is connected with resistance R 68, control system 12; Wherein, the turn ratio of former limit of transformer T1 and secondary is 1:1;
AC power AC is a 20V voltage, its through Zener diode pipe D7, D8 and transformer T1 through shunt resistance R2 shunting and after by diode D1-D4 rectification, for optocoupler U1 whether provide can conducting magnitude of voltage; Be specially: when hand switch CON1 off-state; The former limit of transformer T1 is equivalent to a bigger resistance; PCON1 is input to the interchange 20V signal of AC power AC through Zener diode D7, D8 pressure limiting, and can't make optocoupler U1 conducting by the voltage after the diode D1-D4 rectification; When hand switch CON1 is closed; The resistance of transformer T1 primary coil reduces; Magnitude of voltage after the diode D1-D4 rectification increases, and have enough voltage this moment makes optocoupler U1 conducting, through be connected with resistance R 66+15V voltage is through resistance R 66, inductance L 3, diode D6, triode Q1, inductance L 2 relief Q2 conductings; The PT_TIG current potential of control chip LPC2134 is dragged down, thereby send the actuating signal that drives main control circuit 10.
Consult shown in Figure 4; Said high-frequency and high-voltage output circuit 6 also is connected with pressure limiting circuit, and said pressure limiting circuit comprises Wiring port (PCON1-PCON4), piezo-resistance (R7-R14), resistance (R15-R17), electric capacity (C6-C11), and said Wiring port PCON1 is connected with Remote; Said Wiring port PCON2 is connected with the argon arc welding output plus terminal; Said Wiring port PCON3 is connected with argon arc welding output negative terminal, and said Wiring port PCON4 is connected with hand weldering output plus terminal, and said piezo-resistance (R7-R14) is connected in series; The one of which end is connected with Wiring port PCON3; The other end is connected with Wiring port PCON3, electric capacity (C9-C11) end, resistance R 17 1 ends, and said resistance (R15-R16) end is connected with electric capacity (C10-C11) other end, and the other end is connected with electric capacity (C6-C8) end; Electric capacity (C7-C8) other end is connected with capacitor C 9 other ends, resistance R 17 other ends and Wiring port PCON2, and capacitor C 6 other ends are connected with Wiring port PCON1; Wherein, The piezo-resistance R7-R14 at two ends with the effective clamper of striking coil voltage at a desired value; Remainder then flows to the earth through capacitor C 10, C11 and resistance R 15, R16; Wiring port PCON2 links to each other with argon welding weldering output plus terminal, and the capacitor C 9 between Wiring port PCON2 and the Wiring port PCON4, the effect of resistance R 14 are to reduce the output floating voltage, makes the welding output voltage steady; And the effect of capacitor C 7, C8 is for preventing output bias design.
Consult shown in Figure 5ly, and through above-mentioned design, the operation principle of system is:
At first, during the start of argon arc welding machine, line voltage gets into rectification circuit 1 through EMC; Rectification circuit 1 be with common rectifier bridge with absorb filter capacitor and form, the DC voltage after rectification then gets into inverter circuit 2, when no hand switch CON1 signal; Inverter circuit 2 is idle; When hand switch CON1 one startup, drive circuit 8 sends 2 work of drive inverter circuit, and inverter circuit gets into transforming circuit 3 after direct current is transformed into high-frequency alternating current; Mainly be made up of a ultracrystallite transformer because of transforming circuit 3, effect is that high voltage direct current is transformed into the needed low pressure of appropriate electrical arc welding here.
Then; After hand switch CON1 starts; Main control circuit 10 produces a high level signal at P end (TO ARM), makes triode Q13 conducting through current-limiting resistance R207 and R73, and then high frequency relay K1 adhesive; And then relay J D is closed and start working, and the low-voltage that the transforming circuit 3 secondary first secondary windings N1 is produced is sent to boost pressure circuit 4.
And after hand switch CON1 started, on-off circuit 7 output high level signals gave control system 12, that is: the control chip of LPC2134; It produces a high level and gives main control circuit 10, and it makes triode Q13 conducting, high frequency relay K1 adhesive in succession by P end (TO ARM) input; Then the closed work of relay J D, the high frequency transformer secondary is communicated with boost pressure circuit 4, and the low-voltage that the transforming circuit 3 secondary first secondary windings N1 is produced is sent to boost pressure circuit 4; The voltage boost of by the booster transformer T in the boost pressure circuit 4 the high frequency transformer secondary first secondary windings N1 being exported then changes the voltage up to 4000V that is fit to striking into, and its booster transformer T C2 of former limit string and absorption resistance R5 are saturated for fear of the magnetic bias of booster transformer T, and discharge mouth FDZ directly is connected on the 4000V high-voltage output end; When not connecing the striking device; Discharge mouth FDZ two ends air is breakdown, forms electric arc, after inserting the striking device; The high-voltage output end of booster transformer T is through charging to capacitor C 3, C4, C5; Distance decision capacitor C 3, C4, C5 two ends charging voltage and the frequency of discharge mouth FDZ, when capacitor C 3, C4, C5 voltage are charged to can disruptive discharge mouth FDZ two ends during air, capacitor C 3, C4, C5 begin discharge; Just can produce high-voltage signal in instantaneous striking coil two ends at the striking device; And will be through the electric current of high-frequency and high-voltage on the striking coil, its technical parameter is strict, and its quality is the deciding factor of starting the arc difficulty or ease, welding effect.
After in the high-frequency and high-voltage output circuit 6 high-frequency high-voltage current being arranged, guaranteed the starting the arc, if can protect improper; The rectifying tube of high-frequency high-voltage current in just can the rectification of reverse breakdown secondary, even damage the circuit that primary coil connected on the former limit of transformer in the transforming circuit 3, and; High-frequency and high-voltage just uses when the starting the arc; Just no longer need after the starting the arc, so need to break off being communicated with of high frequency transformer secondary and boost pressure circuit 4 in good time
After the striking success, control system 12 is according to closure and the disconnection of the Control of Voltage relay J D of voltage detection module 11 detections, if the output voltage of the main output circuit of i.e. voltage detection module 11 detections is constant, control system 12 is failure to actuate; If the output voltage that voltage detection module 11 detects main output circuit reduces; Control system 12 output low level signals give main control circuit 10; Main control circuit 10 output control high frequency relay K1 break off; And then break off relay J D, thus accomplish the quitting work of high-frequency and high-voltage generator, wherein mainly to act on be with effective isolation between transforming circuit 3, boost pressure circuit 4 and the control system 12 for high frequency relay K1 and relay J D.
The present invention through after the above-mentioned circuit design with and reduce the realization flow of argon arc welding high-frequency and high-voltage after, the advantage that has is:
1, circuit structure of the present invention and manufacturing process are very simple, and implementation cost is very low, have not only guaranteed the stable of machine performance, the more important thing is the personal safety that has guaranteed the user, have made things convenient for the user to a great extent;
2, circuit can adopt plug-in type to connect, and only has several simple patch cords just with the high-frequency and high-voltage interference isolation between control circuit and on-off circuit 7, the high-frequency and high-voltage output, has guaranteed the safe in utilization of equipment, has improved the service life of machine;
3, the present invention can be used for inversion direct current argon arc welding machine, inversion alternating current-direct current argon arc welding machine, inversion air plasma cutter and other welding and cutting device.
And the present invention successfully is used for T&R alternating current-direct current numeral argon arc welding MultiwaveACDC series through repeatedly experiment at present, does not have any interference of appearance, stable, the reliable operation of welder performance.
Above-mentioned detailed description only is exemplary description, and those skilled in the art can design various embodiments according to different actual needs under the situation of scope that does not break away from the present invention and protected and spirit.
Claims (10)
1. a circuit that reduces the argon arc welding high-frequency and high-voltage is characterized in that, the circuit of said reduction argon arc welding high-frequency and high-voltage comprises:
The rectification circuit (1) that input is connected with electrical network EMC circuit;
The inverter circuit (2) that is connected with said rectification circuit (1) output;
Transforming circuit (3) that is connected with said inverter circuit (2) and drive circuit (8);
The boost pressure circuit (4) that is connected with said transforming circuit (3);
The LC oscillating circuit (5) that is connected with said boost pressure circuit (4);
The high-frequency and high-voltage output circuit (6) that is connected with said LC oscillating circuit (5);
The on-off circuit (7) that is connected with said drive circuit (8);
And, the auxiliary power circuit (9) that is connected with said on-off circuit (7) and drive circuit (8) respectively;
Said boost pressure circuit (3) is a high frequency transformer, and the former limit of said high frequency transformer is connected with inverter circuit (2) output, and said high frequency transformer secondary links to each other with boost pressure circuit (4); And, also comprise:
Main contacts one end is connected with the high frequency transformer secondary, the relay (JD) that the other end is connected with boost pressure circuit (4);
The main control circuit (10) that is connected with said relay (JD) main coil;
Said voltage detection module (11) is the main circuit voltage input;
The control system (12) that is connected with said on-off circuit (7) and main control circuit (10).
2. the circuit of reduction argon arc welding high-frequency and high-voltage according to claim 1; It is characterized in that: the secondary of said high frequency transformer comprises first secondary windings (N1), second subprime winding (N2) and level winding (N3) for the third time; Said first secondary windings (N1), second subprime winding (N2) are connected with high-frequency and high-voltage output circuit (6), and said level winding (N3) for the third time is connected with boost pressure circuit (4) through relay (JD).
3. the circuit of reduction argon arc welding high-frequency and high-voltage according to claim 1 and 2 is characterized in that: said high frequency transformer is the ultracrystallite transformer.
4. the circuit of reduction argon arc welding high-frequency and high-voltage according to claim 2; It is characterized in that: said boost pressure circuit (4) comprises absorption resistance (R5), electric capacity (C2) and booster transformer (T); Said absorption resistance (R5) end, electric capacity (C2) end are connected with high frequency transformer secondary first secondary windings (N1) end; Absorption resistance (R5) other end, electric capacity (C2) other end are connected with the former limit of booster transformer (T) one end; Said relay (JD) main contacts one end is connected with high frequency transformer secondary first secondary windings (N1) other end; The main contacts other end is connected with the former limit of booster transformer (T) other end, and main coil is connected with main control circuit (10).
5. the circuit of reduction argon arc welding high-frequency and high-voltage according to claim 3; It is characterized in that: said LC oscillating circuit (5) comprises electric capacity (C3-C5), first current-limiting resistance (R6), discharge mouth (FDZ) and striking coil; Said electric capacity (C3-C5) end is connected with booster transformer (T) secondary one end; The other end is connected with discharge mouth (FDZ) end; Said first current-limiting resistance (R6) end is connected with booster transformer (T) the secondary other end, and first current-limiting resistance (R6) other end is connected with discharge mouth (FDZ) other end, and said striking coil one side is connected with discharge mouth (FDZ).
6. the circuit of reduction argon arc welding high-frequency and high-voltage according to claim 2; It is characterized in that: said high-frequency and high-voltage output circuit (6) comprises argon arc welding output plus terminal, argon arc welding output negative terminal and hand weldering output plus terminal; Said argon arc welding output plus terminal is connected with high frequency transformer secondary second subprime winding (N2) end; Said hand weldering output plus terminal respectively through diode and high frequency transformer secondary for the third time level winding (N3) end, first secondary windings (N1) other end is connected, said argon arc welding is exported negative terminal and is welded output plus terminal through striking coil opposite side and hand and be connected.
7. the circuit of reduction argon arc welding high-frequency and high-voltage according to claim 5; It is characterized in that: said on-off circuit (7) comprises resistance (R4, R65, R66, R67, R68, R99), Zener diode (D5, D7, D8), transformer (T1), shunt resistance (R2), diode (D1-D4, D6, D33), filter resistance (R3), filter capacitor (C1), second current-limiting resistance (R1), optocoupler (U1), triode (Q1-Q2), electric capacity (C14, C15), inductance (L2, L3); Said resistance (R4) end is connected with AC power (AC); Resistance (R4) other end is connected with the former limit of transformer (T1) one end, Zener diode (D7) anode respectively; Zener diode (D7) negative electrode is connected with Zener diode (D8) negative electrode; Zener diode (D8) anode is connected with shunt resistance (R2) end, AC power (AC); Shunt resistance (R2) other end is connected with the former limit of transformer (T1) other end; Said transformer (T1) secondary is connected with hand switch (CON1); Said diode (D1-D4) is parallelly connected with shunt resistance (R2); Said filter resistance (R3), filter capacitor (C1) are parallelly connected with diode (D1-D4) respectively; Said filter resistance (R3) end, filter capacitor (C1) positive pole are connected with optocoupler (U1) input one side through Zener diode (D5), second current-limiting resistance (R1); Said filter resistance (R3) other end, filter capacitor (C1) negative pole are connected with optocoupler (U1) input opposite side; Said optocoupler (U1) output one side is connected with diode (D6) negative electrode, triode (Q1) colelctor electrode, and optocoupler (U1) output opposite side is connected with triode (Q1) base stage, and said diode (D6) anode is connected with inductance (L3) end; Triode (Q1) emitter stage is connected with inductance (L2) end; Inductance (L3) other end is connected with resistance (R66) end, electric capacity (C14) end, and inductance (L2) other end is connected with electric capacity (C14) other end, resistance (R65, a R99) end, and said resistance (R67) end, diode (D33) negative electrode, electric capacity (C15) end are connected with resistance (R99) other end, diode (Q2) base stage respectively; Resistance (R67) other end, diode (D33) anode, electric capacity (C15) other end are connected with resistance (R65) other end, diode (Q2) emitter stage respectively, and said diode (Q2) colelctor electrode is connected with resistance (R68), control system (12).
8. the circuit of reduction argon arc welding high-frequency and high-voltage according to claim 6; It is characterized in that: said high-frequency and high-voltage output circuit (6) also is connected with pressure limiting circuit; Said pressure limiting circuit comprises Wiring port (PCON1-PCON4), piezo-resistance (R7-R14), resistance (R15-R17), electric capacity (C6-C11); Said Wiring port (PCON1) is connected with Remote, and said Wiring port (PCON2) is connected with the argon arc welding output plus terminal, and said Wiring port (PCON3) is connected with argon arc welding output negative terminal; Said Wiring port (PCON4) is connected with hand weldering output plus terminal; Said piezo-resistance (R7-R14) is connected in series, and the one of which end is connected with Wiring port (PCON3), and the other end is connected with Wiring port (PCON3), electric capacity (C9-C11) end, resistance (R17) end; Said resistance (R15-R16) end is connected with electric capacity (C10-C11) other end; The other end is connected with electric capacity (C6-C8) end, and electric capacity (C7-C8) other end is connected with electric capacity (C9) other end, resistance (R17) other end and Wiring port (PCON2), and electric capacity (C6) other end is connected with Wiring port (PCON1).
9. method that reduces the argon arc welding high-frequency and high-voltage, may further comprise the steps: said on-off circuit (7) cuts out, and circuit is not worked; Said on-off circuit (7) is opened, circuit working;
It is characterized in that the concrete steps of said circuit working comprise:
S1, drive circuit (8) drive inverse circuit (2) work;
S2, said on-off circuit (7) output low level signal give control system (12), and said control system (12) output high level signal gives main control circuit (10), said main control circuit (10) output control relay (JD) closure signal;
S3, said high frequency transformer secondary are communicated with boost pressure circuit (4), and said boost pressure circuit (4) is to the supercharging of said high frequency transformer secondary output voltage;
S4, said boost pressure circuit (4) output high tension voltage, through the voltage of the said high-frequency and high-voltage of said LC oscillating circuit (5) generation, said high-frequency and high-voltage voltage is through high-frequency and high-voltage output circuit (6) output services;
S5, said voltage detection module (11) detect the voltage of major loop;
The closure and the disconnection of the Control of Voltage relay (JD) that S6, said control system (12) detect according to voltage detection module (11).
10. the method for reduction argon arc welding high-frequency and high-voltage according to claim 13 is characterized in that: said step S6 specifically may further comprise the steps:
The output voltage that S61, said voltage detection module (11) detect major loop is constant, and control system (12) is failure to actuate;
The output voltage that S62, said voltage detection module (11) detect major loop reduces, and control system (12) output low level signal gives main control circuit (10), main control circuit (10) output control relay (JD) cut-off signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210283411.7A CN102773585B (en) | 2012-08-10 | 2012-08-10 | A kind of circuit reducing argon arc welding high-frequency and high-voltage and method thereof |
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| CN201210283411.7A CN102773585B (en) | 2012-08-10 | 2012-08-10 | A kind of circuit reducing argon arc welding high-frequency and high-voltage and method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105965125A (en) * | 2016-04-30 | 2016-09-28 | 苏州亿欧得电子有限公司 | Welding method of reed and connecting rod wire, arc discharge welding equipment and control circuit |
| CN106392387A (en) * | 2016-01-27 | 2017-02-15 | 上海广为焊接设备有限公司 | Multifunctional welding circuit of double-tube single-ended forward inverter welding machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63309373A (en) * | 1987-06-11 | 1988-12-16 | Hitachi Seiko Ltd | Arc welding source |
| CN101462197A (en) * | 2008-10-22 | 2009-06-24 | 深圳市鸿栢科技实业有限公司 | High-frequency inversion stud welding equipment and controlling means thereof |
| CN201572991U (en) * | 2009-12-03 | 2010-09-08 | 深圳市华意隆实业发展有限公司 | Welding gun high-voltage isolating circuit used in argon arc welding |
| CN201913354U (en) * | 2010-12-30 | 2011-08-03 | 浙江劳士顿焊接设备有限公司 | Control system for DC (Direct Current) pulse argon arc welding |
| CN102513652A (en) * | 2011-12-06 | 2012-06-27 | 张家港市紫光电焊机有限公司 | DC welding machine |
| CN202877693U (en) * | 2012-08-10 | 2013-04-17 | 深圳市瑞凌实业股份有限公司 | Circuit capable of lowering argon arc welding high frequency and high voltage |
-
2012
- 2012-08-10 CN CN201210283411.7A patent/CN102773585B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63309373A (en) * | 1987-06-11 | 1988-12-16 | Hitachi Seiko Ltd | Arc welding source |
| CN101462197A (en) * | 2008-10-22 | 2009-06-24 | 深圳市鸿栢科技实业有限公司 | High-frequency inversion stud welding equipment and controlling means thereof |
| CN201572991U (en) * | 2009-12-03 | 2010-09-08 | 深圳市华意隆实业发展有限公司 | Welding gun high-voltage isolating circuit used in argon arc welding |
| CN201913354U (en) * | 2010-12-30 | 2011-08-03 | 浙江劳士顿焊接设备有限公司 | Control system for DC (Direct Current) pulse argon arc welding |
| CN102513652A (en) * | 2011-12-06 | 2012-06-27 | 张家港市紫光电焊机有限公司 | DC welding machine |
| CN202877693U (en) * | 2012-08-10 | 2013-04-17 | 深圳市瑞凌实业股份有限公司 | Circuit capable of lowering argon arc welding high frequency and high voltage |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392387A (en) * | 2016-01-27 | 2017-02-15 | 上海广为焊接设备有限公司 | Multifunctional welding circuit of double-tube single-ended forward inverter welding machine |
| CN106392387B (en) * | 2016-01-27 | 2019-01-18 | 上海广为焊接设备有限公司 | Two-tube single-ended forward type inverter type welder realizes the circuit of multi-functional welding |
| CN105965125A (en) * | 2016-04-30 | 2016-09-28 | 苏州亿欧得电子有限公司 | Welding method of reed and connecting rod wire, arc discharge welding equipment and control circuit |
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| CN102773585B (en) | 2016-08-17 |
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Effective date of registration: 20200326 Address after: Room 207, unit C, building A3, China Merchants science and Technology Park, No. 3009, sightseeing Road, Guangming New District, Shenzhen City, Guangdong Province:2-6 / F, building B, Feiyang industrial technology plant, Liuxian 2nd Road, Xin'an street, Bao'an District, Shenzhen) Room 207, unit C, building A3, China Merchants science and Technology Park, No. 3009, Guangming New District, Shenzhen City, Guangdong Province, 518000 (place of business: floor 2-6, building B, Feiyang Industrial Science and technology plant, Liuxian Second Road, Xin'an street, Bao'an District, Shenzhen) Co-patentee after: KUNSHAN RUILING WELDING TECHNOLOGY Co.,Ltd. Patentee after: SHENZHEN RILAND INDUSTRY Co.,Ltd. Address before: 518000 No. 4 factory building, Fenghuang fourth industrial zone, Fuyong street, Baoan District, Guangdong, Shenzhen Patentee before: SHENZHEN RILAND INDUSTRY Co.,Ltd. |
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Address after: 518133 floor 501 (4-5), building B, Feiyang science and Technology Innovation Park, No.8, Longchang Road, 67 District, Xingdong community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province:No.4 factory building, Fenghuang fourth industrial zone, Fenghuang community, Fuyong street, Bao'an District, Shenzhen City) 518133 Room 501, building B, Feiyang science and Technology Innovation Park, No.8, Longchang Road, 67 District, Xingdong community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Ruiling Industrial Group Co.,Ltd. Patentee after: KUNSHAN RUILING WELDING TECHNOLOGY Co.,Ltd. Address before: Room 207, unit C, building A3, China Merchants Science Park, 3009 sightseeing Road, Guangming New District, Shenzhen, Guangdong 518000:2-6 / F, building B, Feiyang industrial technology plant, Liuxian 2nd Road, Xin'an street, Bao'an District, Shenzhen) Room 207, unit C, building A3, China Merchants Science Park, 3009 sightseeing Road, Guangming New District, Shenzhen, Guangdong 518000 Patentee before: SHENZHEN RILAND INDUSTRY Co.,Ltd. Patentee before: KUNSHAN RUILING WELDING TECHNOLOGY Co.,Ltd. |
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