CN207787932U - The high stability argon arc welding machine of New Anti-interference - Google Patents
The high stability argon arc welding machine of New Anti-interference Download PDFInfo
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- CN207787932U CN207787932U CN201820100940.1U CN201820100940U CN207787932U CN 207787932 U CN207787932 U CN 207787932U CN 201820100940 U CN201820100940 U CN 201820100940U CN 207787932 U CN207787932 U CN 207787932U
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- welding machine
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- argon arc
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Abstract
The utility model discloses a kind of high stability argon arc welding machines of New Anti-interference, its key points of the technical solution are that：Including power module, control unit, delay unit and the welding machine mainboard being linked in sequence, the power module output voltage signal, described control unit receiving voltage signal, time delayed signal is exported after conversion process, the delay unit reception delay signal, enabling signal is exported after delay process, the welding machine mainboard receives control welding machine work after enabling signal；When this argon arc welding machine is powered on, the time of delay unit meeting butt welding mainboard control argon arc welding machine work plays delayed-action, to reduce the damage of the high voltage butt welding mainboard of moment, is conducive to the service life for improving argon arc welding machine.
Description
Technical field
The utility model is related to a kind of argon arc welding machine, more particularly to the high stability argon arc welding machine of a kind of New Anti-interference.
Background technology
Argon arc welding machine is the machine using argon arc welding, using the starting the arc mode of high-voltage breakdown.Argon arc welding, that is, Tungsten Inert gas
Body protects arc-welding, refers to and makees nonconsumable electrode with industrial tungsten or Porous Tungsten, and inert gas makees the welding method protected.
Existing argon arc welding machine such as notification number is a kind of Chinese utility model patent of CN201201107Y, and it discloses one
Kind of MOSFET contravariant argon arc welding machines, including be linked in sequence EMC circuits, input rectifying filter circuit, inverter circuit, isolation drop
Volt circuit, secondary current rectifying and wave filtering circuit, control circuit, isolated drive circuit, and isolated drive circuit is connected with inverter circuit,
It is connected with high-frequency high-voltage circuit between secondary current rectifying and wave filtering circuit and control circuit.
Above-mentioned circuit structure can be summarized as welding machine mainboard and power module is connected with each other, and power module connects external electrical
It is powered to welding machine mainboard after source, but above-mentioned argon arc welding machine, in rigid start, power module is just switched on external power supply
When, work is also unstable, and just directly to welding machine main board power supply, power module can increase moment to the voltage of welding machine mainboard,
During this, the high voltage for being equivalent to moment directly initiates welding machine, easily leads to the damage inside welding machine mainboard, the use of welding machine
Service life reduction.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of high stables of New Anti-interference
Property argon arc welding machine, with advantage with long service life.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of New Anti-interference
High stability argon arc welding machine mainboard, including the power module, control unit, delay unit and the welding machine mainboard that are linked in sequence, institute
Power module output voltage signal is stated, described control unit receiving voltage signal exports time delayed signal, institute after conversion process
Delay unit reception delay signal is stated, enabling signal is exported after delay process, after the welding machine mainboard receives enabling signal
Control welding machine work.
Through the above technical solutions, when argon arc welding machine needs work, power module is connected to output voltage after external power supply
Signal, control unit is started to work and receiving voltage signal, and delay is transferred to after voltage signal is converted to time delayed signal
Voltage signal is converted to enabling signal after delay unit reception delay signal by unit after switching delay after a period of time
It is transferred to welding machine mainboard, welding machine mainboard receives enabling signal control welding machine work, advantageously reduces transient voltage butt welding mainboard
Damage, and then the service life of argon arc welding machine can be improved.
Preferably, the delay unit includes delay circuit and switching circuit, the delay circuit connecting valve circuit
And export enabling signal to switching circuit, the switching circuit connects welding machine mainboard, and according to enabling signal butt welding mainboard into
The break-make of row line switches.
Through the above technical solutions, after delay unit reception delay signal, time delayed signal is introduced into delay circuit, is prolonged
When circuit turn-on and slow down time of time delayed signal output, and time delayed signal is converted into enabling signal, enabling signal is transferred to
After switching circuit, to control the open and close of welding machine mainboard.
Preferably, the delay circuit includes NPN triode Q1 and timer, the base stage electricity of the NPN triode Q1
It is connected to control unit and reception delay signal, collector is electrically connected to Vcc voltage, and emitter is electrically connected to the timer,
The timer response carries out timing in time delayed signal, and exports an enabling signal after the full scheduled duration of meter.
Through the above technical solutions, when time delayed signal enters delay circuit, time delayed signal reaches after NPN triode
At timer, timer operation, and according to the extended time value of the needs set in advance, when adjusting the specific output of time delayed signal
Between.
Preferably, the timer includes 555 chips, capacitance C1, capacitance C2 and resistance R1,4 feet of 555 chip
And 8 foot be electrically connected to the emitter of NPN triode Q1,3 feet are electrically connected to switching circuit, 1 foot ground connection, and 5 feet pass through capacitance C2
Ground connection, 2 feet and 6 feet are electrically connected to the emitter of NPN triode Q1 by capacitance C1, and are grounded by resistance R1.
Through the above technical solutions, when timer initiation, each pin on 555 chips is started to work, and and pin
Capacitance, resistance and the NPN triode of upper connection cooperate, to slow down the output of time delayed signal.
Preferably, the switching circuit includes tri- pole NPN triode Q2 and open type voltage relay K1, the NPN
The base stage of pipe Q2 is electrically connected to timer, and collector is electrically connected to wherein one end of voltage relay K1 coils, emitter ground connection；
The other end of the voltage relay K1 coils connects Vcc voltage, wherein one end electrical connection of the voltage relay K1 switches
In welding machine mainboard, the other end is electrically connected to external power supply.
Through the above technical solutions, the enabling signal exported in the timer by NPN triode Q2 be transferred to voltage after
When electric appliance K1, the switch of voltage relay K1 is closed, and welding machine mainboard starts and control welding machine start-up operation, passes through voltage relay
K1 realizes that the control of butt welding mainboard can play the protective effect of butt welding mainboard.
Preferably, further include voltage comparator circuit, the voltage comparator circuit be connected to delay circuit and switching circuit it
Between, the voltage comparator circuit receives the enabling signal exported by delay circuit, and according to enabling signal and startup upper limit signal
Judged, and exports comparison signal.
Through the above technical solutions, during the enabling signal of timer output is transferred to voltage comparator circuit, by
In the effect of capacitance in timer so that enabling signal is gradually transferred to switching circuit, and welding machine mainboard needs to reach certain
Numerical value could start, and by the way that voltage comparator circuit is arranged, and sets and start upper limit signal so that the startup letter that timer passes out
After number accumulating and reach the startup upper limit in voltage comparator circuit, it can disposably export and relay K1 is made to be closed, in turn
Welding machine mainboard can be started.
Preferably, the voltage comparator circuit includes comparator and reference circuit, and the backward end of the comparator is used for
Enabling signal is received, end connection reference circuit, the reference circuit start upper limit signal for providing in the same direction.
Through the above technical solutions, setting starts upper limit signal on reference circuit, can more accurately judge to start
Signal value and timely input switching circuit work in order to quickly start welding machine mainboard.
In conclusion the utility model having the beneficial effect that in contrast to the prior art：
Pass through and delay unit be set so that by control unit converted voltage signal the process of transmission can be via prolonging
After Shi Danyuan carries out the switching delay of a period of time, then welding machine mainboard is transferred to control the startup of welding machine, advantageously reduce wink
Between voltage butt welding mainboard damage, and then the service life of argon arc welding machine can be improved.
Description of the drawings
Fig. 1 is the functional block diagram of embodiment, the principle for emphasis displaying embodiment；
Fig. 2 is the physical circuit figure of embodiment, the circuit for emphasis displaying embodiment.
Reference numeral：1, power module；2, control unit；3, delay unit；31, delay circuit；311, timer；32、
Switching circuit；4, welding machine；5, voltage comparator circuit；51, comparator；52, reference circuit.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Referring to Fig. 1, Fig. 2, a kind of high stability argon arc welding machine of New Anti-interference, including be linked in sequence power module 1,
Control unit 2, delay unit 3 and welding machine mainboard 4, control unit 2 are microcontroller；1 output voltage signal of power module, control
2 receiving voltage signal of unit exports time delayed signal, 3 reception delay signal of delay unit, at delay after conversion process
Enabling signal is exported after reason, welding machine mainboard 4 receives control welding machine work after enabling signal.
Delay unit 3 includes delay circuit 31, voltage comparator circuit 5 and switching circuit 32, the connection delay of control unit 2
Circuit 31 simultaneously exports time delayed signal to delay circuit 31；After delay circuit 31 connects voltage comparator circuit 5 and exports delay process
Enabling signal to voltage comparator circuit 5；5 connecting valve circuit 32 of voltage comparator circuit according to enabling signal and starts the upper limit
Signal is judged, and exports comparison signal to switching circuit 32, and the numerical value for starting upper limit signal is that can make switching circuit 32
The numerical value of closure, switching circuit 32 connect welding machine mainboard 4, are switched according to the break-make of comparison signal butt welding mainboard 4 into row line.
Delay circuit 31 includes NPN triode Q1 and timer 311, and timer 311 is by 555 chips, capacitance C1, capacitance
C2 and resistance R1 compositions；The base stage of NPN triode Q1 is electrically connected to control unit 2 and reception delay signal, NPN triode Q1
Collector be electrically connected to Vcc voltage, 4 feet and 8 feet of 555 chips are electrically connected to the emitter of NPN triode Q1,3 feet electricity
It is connected to 32,1 foot of switching circuit ground connection, 5 feet are grounded by capacitance C2, and 2 feet and 6 feet are electrically connected to NPN tri- by capacitance C1
The emitter of pole pipe Q1, and be grounded by resistance R1.
The operation principle of timer 311 is：When NPN triode Q1 is connected, 555 chips are powered, and Vcc voltage is to capacitance C1
Charging, forms charging current, which forms higher pressure drop in the upper end of resistance R1 so that 2 feet of 555 chips will not
Triggering；When capacitance C1 is fully charged, charging current disappears, and then 2 foot current potential moments of 555 chips drag down and are triggered, 555 chips
3 feet export the timing signal of high level immediately.
Voltage comparator circuit 5 includes resistance R2, comparator 51 and reference circuit 52, and the backward end of comparator 51 passes through electricity
3 feet of 555 chip of resistance R2 connections connect reference circuit 52, reference circuit for receiving enabling signal, the end in the same direction of comparator 51
52 start upper limit signal for providing；Reference circuit 52 includes that resistance R3 and potentiometer Rp1, voltage vcc are sequentially connected to electricity
R3 and potentiometer Rp1 is hindered, and potentiometer Rp1 ground connection, the tie point between resistance R3 and locator Rp1 provide upper limit signal
Vref1 can adjust the size of upper limit signal Vref1 by adjusting potentiometer Rp1.
Switching circuit 32 includes resistance R4, NPN triode Q2 and voltage relay K1, and voltage relay K1 is open type
The base stage of relay, NPN triode Q2 is electrically connected to comparator 51, and collector is electrically connected to voltage relay K1 coils wherein
One end, emitter ground connection；The other end connection Vcc voltage of voltage relay K1 coils, wherein the one of voltage relay K1 switches
End is electrically connected to welding machine mainboard 4, and the other end is electrically connected to external power supply.
The operation principle of the present embodiment is：
When needing to start 4 work of welding machine mainboard, control unit 2 receives the voltage signal in power module 1, and is transferred to
Delay circuit 31,31 reception delay signal of delay circuit are simultaneously transferred to timer 311, and timer 311 starts timing, in the timing phase
Between, so that time delayed signal is stayed in always in delay circuit 31, and be gradually converted to enabling signal, makes a reservation for until timer 311 reaches
Time value when, enabling signal is transferred to via 3 feet in voltage comparator circuit 5, voltage comparator circuit 5 is judged, when opening
When dynamic signal reaches startup upper limit signal, it is input in switching circuit 32, voltage relay K1 is closed, and welding machine mainboard 4 starts, and
Control welding machine work.
The above is only the exemplary embodiment of the utility model, the protection model rather than limited the present invention
It encloses, the scope of protection of the utility model is determined by the attached claims.
Claims (7)
1. a kind of high stability argon arc welding machine of New Anti-interference, it is characterized in that：Including be linked in sequence power module (1), control
Unit (2), delay unit (3) and welding machine mainboard (4) processed, power module (1) output voltage signal, described control unit
(2) receiving voltage signal exports time delayed signal, delay unit (3) the reception delay signal, by prolonging after conversion process
When processing after export enabling signal, the welding machine mainboard (4) receives control welding machine work after enabling signal.
2. the high stability argon arc welding machine of New Anti-interference according to claim 1, it is characterized in that：The delay unit
(3) include delay circuit (31) and switching circuit (32), delay circuit (31) the connecting valve circuit (32) and exporting is opened
Dynamic signal gives switching circuit (32), the switching circuit (32) to connect welding machine mainboard (4), and according to enabling signal butt welding mainboard
(4) switch into the break-make of row line.
3. the high stability argon arc welding machine of New Anti-interference according to claim 2, it is characterized in that：The delay circuit
(31) include NPN triode Q1 and timer (311), the base stage of the NPN triode Q1 is electrically connected to control unit (2) simultaneously
Reception delay signal, collector are electrically connected to Vcc voltage, and emitter is electrically connected to the timer (311), the timer
(311) timing is carried out in response to time delayed signal, and an enabling signal is exported after the full scheduled duration of meter.
4. the high stability argon arc welding machine of New Anti-interference according to claim 3, it is characterized in that：The timer
(311) include 555 chips, capacitance C1, capacitance C2 and resistance R1,4 feet and 8 feet of 555 chip are electrically connected to NPN tri-
The emitter of pole pipe Q1,3 feet are electrically connected to switching circuit (32), 1 foot ground connection, and 5 feet are grounded by capacitance C2, and 2 feet and 6 feet are logical
The emitter that capacitance C1 is electrically connected to NPN triode Q1 is crossed, and is grounded by resistance R1.
5. the high stability argon arc welding machine of New Anti-interference according to claim 2, it is characterized in that：The switching circuit
(32) include that NPN triode Q2 and open type voltage relay K1, the base stage of the NPN triode Q2 are electrically connected to timer
(311), collector is electrically connected to wherein one end of voltage relay K1 coils, emitter ground connection；The voltage relay K1 lines
The other end of circle connects Vcc voltage, and wherein one end of the voltage relay K1 switches is electrically connected to welding machine mainboard (4), another
End is electrically connected to external power supply.
6. the high stability argon arc welding machine of New Anti-interference according to claim 1, it is characterized in that：Further include that voltage compares
Circuit (5), the voltage comparator circuit (5) are connected between delay circuit (31) and switching circuit (32), and the voltage compares
Circuit (5) receives the enabling signal exported by delay circuit (31), and is judged with upper limit signal is started according to enabling signal,
And export comparison signal.
7. the high stability argon arc welding machine of New Anti-interference according to claim 6, it is characterized in that：The voltage is more electric
Road (5) includes comparator (51) and reference circuit (52), and the backward end of the comparator (51) is for receiving enabling signal, together
To end connection reference circuit (52), the reference circuit (52) starts upper limit signal for providing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820100940.1U CN207787932U (en) | 2018-01-20 | 2018-01-20 | The high stability argon arc welding machine of New Anti-interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820100940.1U CN207787932U (en) | 2018-01-20 | 2018-01-20 | The high stability argon arc welding machine of New Anti-interference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207787932U true CN207787932U (en) | 2018-08-31 |
Family
ID=63268999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820100940.1U Expired - Fee Related CN207787932U (en) | 2018-01-20 | 2018-01-20 | The high stability argon arc welding machine of New Anti-interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207787932U (en) |
-
2018
- 2018-01-20 CN CN201820100940.1U patent/CN207787932U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180831 Termination date: 20210120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |