CN205254311U - Manual welding machine energy -saving control device - Google Patents
Manual welding machine energy -saving control device Download PDFInfo
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- CN205254311U CN205254311U CN201520798337.1U CN201520798337U CN205254311U CN 205254311 U CN205254311 U CN 205254311U CN 201520798337 U CN201520798337 U CN 201520798337U CN 205254311 U CN205254311 U CN 205254311U
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Abstract
The utility model discloses a manual welding machine energy -saving control device, it includes current detection circuit, voltage detection circuit, controller, current detection circuit is arranged in detecting welding machine work output circuit's electric current, voltage detection circuit is used for detecting the output voltage of welding machine power, electric current in welding machine work output circuit is greater than the lower limit operating current to the output voltage of welding machine power or arc voltage are greater than and break voltage, and the controller then begins to control welding machine power output 0V and lasts the setting -up time, then control welding machine power output accomplishes standby voltage. The utility model discloses a manual welding machine energy -saving control device can reduce the energy consumption of welding machine in the welding stage of breaking.
Description
Technical field
The utility model relates to welding machine, particularly a kind of manual welding machine energy-saving control device.
Background technology
Manual welding machine work welding circuit forms as shown in Figure 1, comprise welding machine electric power 1, welding cable 2, ground wire cable 3,Electrode holders 4, welding rod 5, workpiece 6.
The external devices of manual welding machine work output loop is by welding cable 2, electrode holders 4, welding rod 5, workpiece 6, ground wireCable 3 forms, and these external devices itself exist resistance, the external devices resistance sum of manual welding machine work output loopFor RH，RH=R2+R4+R5+R6+R3, R2 is welding cable 2 resistance, and R4 is electrode holders 4 resistance, and R5 is welding rod 5Resistance, R6 is workpiece 6 resistance, R3 is ground wire cable 3 resistance. In manual welding machine work, welding machine electric power 1 is to weldingElectric arc 7 provides electric energy, welding current process welding cable 2, electrode holders 4, welding rod 5, workpiece 6, ground wire cable 3,Electric current flows through each device generation voltage and is respectively welding cable voltage U2, electrode holders voltage U4, welding rod voltage U5, workpieceVoltage U6, ground wire voltage cable U3, the voltage sum U of the external devices of welding machine work output loopH＝U2+U4+U5+U6+U3. If voltage is U on welding arc 77, U7With welding machine electric power output voltage U1Between pass be: U1＝UH+U7。
The work of manual welding machine is the electric arc that utilizes the smooth combustion of setting up between welding rod and workpiece, makes welding rod and workpieceFusing, thus firmly welding point obtained, and the welding control procedure of manual welding machine is mainly divided into the following steps: (1) workDo standby; (2) starting the arc; (3) welding; (4) break; (5) complete (standby). The complete welding of existing manual welding machineAs shown in Figure 2, welding machine total energy in the stage is broken in welding damages the waveform that in process, output voltage and output current are correspondingConsumption W equals t3 and t4 period self-energy power consumption sum, and energy consumption is larger. If the energy loss in the t3 period is W3，Energy loss in the t4 period is W4:W＝W3+W4；IFor welding machine work output loop electric current.
Utility model content
The technical problems to be solved in the utility model is to reduce the energy consumption of manual welding machine in the stage is broken in welding.
For solving the problems of the technologies described above, a kind of manual welding machine energy-saving control device that the utility model provides, it comprises electric currentTesting circuit, voltage detecting circuit, controller;
Described current detection circuit, for detection of the electric current in welding machine work output loop and output to described controller;
Described voltage detecting circuit, for detection of the output voltage of welding machine electric power and output to described controller;
Described controller, when the electric current in welding machine work output loop is greater than lower limit operating current Ir, and welding machine electric power is defeatedGoing out voltage is greater than and breaks voltage Um, start to control described welding machine electric power output 0V and continue setting-up time t0, then control instituteState welding machine electric power and exported standby voltage Ub；
Uo＜Um＜Ua，Ub≤Ua，UoOperating voltage while stablizing welding for welding machine, UaFor welding machine work standby voltage,UbFor completing standby voltage.
Preferably, Ua＝Ub。
Preferably, Ub＜Ua。
Preferably, 50V < Ua＜100V，25V＜Um＜45V,10V＜Uo＜44V,1A≤Ir, 0.1 second < t0 < 1Second.
For solving the problems of the technologies described above, the another kind of manual welding machine energy-saving control device that the utility model provides, it comprises electricityCurrent detection circuit, voltage detecting circuit, controller;
Described current detection circuit, for detection of the electric current in welding machine work output loop and output to described controller;
Described voltage detecting circuit, for detection of the output voltage of welding machine electric power and output to described controller;
Described controller, when the electric current in welding machine work output loop is greater than lower limit operating current Ir, and arc voltage is greater thanBreak voltage Um, start to control described welding machine electric power output 0V and continue setting-up time t0, then control described welding machine electric powerExport standby voltage Ub；
Uo＜Ua，Ub≤Ua，UoOperating voltage while stablizing welding for welding machine, UaFor welding machine work standby voltage, UbFor completing standby voltage.
Preferably, described manual welding machine energy-saving control device, also comprises the first register;
Described the first register, for depositing manual welding machine output loop cable resistance;
Described controller, calculates manual welding machine arc voltage;
U7＝U1-RH*I，U7For manual welding machine arc voltage, U1For the output voltage of welding machine electric power, I is welding machine work outputElectric current in loop, RHIt is the manual welding machine output loop cable resistance in the first register.
Preferably, described controller, when the output voltage of welding machine electric power produces transition from high to low, calculates output welding machinePower supply output loop resistance RHTo described the first register; RH＝U1L/IL,U1LThe output of the welding machine electric power while end for transitionVoltage, ILElectric current in welding machine work output loop while end for transition.
Preferably, if the output voltage of welding machine electric power by welding machine work standby voltage UaBecome lower than the first threshold voltage K1,The output voltage of welding machine electric power produces transition from high to low, K1＜Ua*4/5。
Preferably, if the differential value of the output voltage of welding machine electric power is less than-5000 volts/seconds, the output electricity of welding machine electric powerPressure produces transition from high to low.
Manual welding machine energy-saving control device of the present utility model, choose one and reasonably break voltage U m, to breaking the momentWelding machine output voltage detects, when welding machine output voltage exceedes Um value, while initiatively turn-offing one section of setting of welding machine outputBetween t0, after arc extinction, returned to again holding state. Manual welding machine energy-saving control device of the present utility model, reducesThe energy consumption of manual welding machine in the stage is broken in welding.
Brief description of the drawings
In order to be illustrated more clearly in the technical solution of the utility model, below the accompanying drawing of the required use of the utility model is doneSimple introduction, apparently, the accompanying drawing in the following describes is only embodiment more of the present utility model, for thisField those of ordinary skill, is not paying under the prerequisite of creative work, can also obtain other according to these accompanying drawingsAccompanying drawing.
Fig. 1 is manual welding machine work welding circuit composition schematic diagram;
Fig. 2 is output voltage and waveform schematic diagram corresponding to output current in the complete welding process of existing manual welding machine;
Fig. 3 is manual welding machine energy-saving control device one example structure schematic diagram of the present utility model;
Fig. 4 is in the complete welding process of welding machine of manual welding machine energy-saving control device one its control of embodiment of the present utility modelThe waveform schematic diagram that output voltage and output current are corresponding.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical scheme in the utility model is carried out to clear, complete description, obviously, institute retouchesThe embodiment stating is a part of embodiment of the present utility model, instead of whole embodiment. Based in the utility modelEmbodiment, all other enforcements that those of ordinary skill in the art obtain under the prerequisite of not making creative workExample, all belongs to the scope that the utility model is protected.
Embodiment mono-
Manual welding machine energy-saving control device, as shown in Figure 3, comprises current detection circuit, voltage detecting circuit, controller;
Described current detection circuit, for detection of the electric current in welding machine work output loop and output to described controller;
Described voltage detecting circuit, for detection of the output voltage U of welding machine electric power1And output to described controller;
Described controller, when the electric current I in welding machine work output loop is greater than lower limit operating current Ir, and welding machine electric powerOutput voltage U1Be greater than and break voltage Um, start to control described welding machine electric power output 0V and continue setting-up time t0, thenControl described welding machine electric power and exported standby voltage Ub；
Uo＜Um＜Ua，Ub＜Ua，UoOperating voltage while stablizing welding for welding machine, UaFor welding machine work standby voltage,For completing standby voltage Ub。
Complete standby voltage UbConventionally be set to equal work standby voltage UaFor, complete standby voltage UbConventionally also can establishBe set to and be less than work standby voltage Ua, to reduce energy consumption and to improve security.
The manual welding machine energy-saving control device of embodiment mono-, is mainly divided into following by the welding control procedure of the welding machine of its controlSeveral steps: (1) work standby; (2) starting the arc; (3) welding; (4) break; (5) complete standby. By the weldering of its controlThe waveform that in the complete welding process of machine, output voltage and output current are corresponding as shown in Figure 4, is chosen one and is reasonably broken electricityPress Um, manual welding machine energy-saving control device detects the welding machine output voltage of breaking the moment, when welding machine output voltage surpassesCross Um value, initiatively turn-off one section of setting-up time t0 of welding machine output, after arc extinction, returned to again holding state.Because manual welding is in order to stop welding, to there is no other use breaking in the time period. The manual welding machine joint of embodiment mono-Energy control device, has saved the useless power consumption of welding machine within the t4 period, the total energy of welding machine in the stage is broken in weldingLoss W is only the energy power consumption in the t3 period in Fig. 4, and energy consumption is less. If the energy loss in the t3 period is W3，:U1For welding machine electric power output voltage, I is welding machine work output loop electric current.
Embodiment bis-
Manual welding machine energy-saving control device based on embodiment mono-, 50V < Ua＜100V，25V＜Um＜45V,10V＜Uo＜44V,1A≤Ir, 0.1 second < t0 < 1 second.
For example, Ua＝70V，Um＝35V,Ir=10A, t0=0.7 second.
Embodiment tri-
A kind of manual welding machine energy-saving control device, as shown in Figure 3, comprises current detection circuit, voltage detecting circuit, controlDevice processed;
Described current detection circuit, for detection of the electric current I in welding machine work output loop and output to described controller;
Described voltage detecting circuit, for detection of the output voltage U of welding machine electric power1And output to described controller;
Described controller, when the electric current I in welding machine work output loop is greater than lower limit operating current Ir, and arc voltage is largeIn breaking voltage Um, start to control described welding machine electric power output 0V and continue setting-up time t0, then control described welding machine electricityThe output in source completes standby voltage Ub；
Uo＜Ua，Ub≤Ua，UoOperating voltage while stablizing welding for welding machine, UaFor welding machine work standby voltage, UbFor completing standby voltage.
Preferably, 1A≤Ir, 0.1 second < t0 < 1 second.
The manual welding machine energy-saving control device of embodiment tri-, is mainly divided into following by the welding control procedure of the welding machine of its controlSeveral steps: (1) work standby; (2) starting the arc; (3) welding; (4) break; (5) complete standby. Choose one rationallyBreak voltage U m, welding machine energy-saving control device detects the arc voltage of breaking the moment, when arc voltage exceedesUm value, initiatively turn-offs one section of setting-up time t0 of welding machine output, has returned to holding state after arc extinction again. RealExecute the manual welding machine energy-saving control device of example three, saved the useless power consumption of welding machine within the t4 period, welding machine draws in weldingTotal energy loss W in faulted-stage section is only the energy power consumption in the t3 period in Fig. 4, and energy consumption is less. If when t3Energy loss in section is W3:U1For welding machine electric power output voltage, I is welding machine workOutput loop electric current.
Embodiment tetra-
Based on embodiment tri-, described manual welding machine energy-saving control device also comprises the first register;
Described the first register, for depositing manual welding machine output loop cable resistance;
Described controller, calculates welding machine arc voltage;
U7＝U1-RH*I，U7For welding machine arc voltage, U1For the output voltage of welding machine electric power, I is welding machine work output loopIn electric current, RHIt is the manual welding machine output loop cable resistance in the first register.
According to manual welding machine output loop cable resistance RH, and electric current I in welding machine work output loop, pass throughUH＝RH* I, can calculate the voltage sum U of the external devices of welding machine work output loopH. Pass through U7＝U1-UH, canCalculate welding machine arc voltage U7。
The manual welding machine energy-saving control device of embodiment tetra-, can according to the electric current in the welding machine work output loop of Real-time Collection,The output voltage of welding machine electric power, in real time, accurately detect and obtain welding machine arc voltage.
Embodiment five
Manual welding machine energy-saving control device based on embodiment tetra-, described controller, when the output voltage of welding machine electric power producesTransition from high to low, calculates output manual welding machine power supply output loop resistance RHTo described the first register; RH＝U1L/IL,U1LThe output voltage of the welding machine electric power while end for transition, ILElectricity in welding machine work output loop while end for transitionStream.
In machine initial arc process and welding process, all there will be the of short duration output short-circuit phenomenon of welding machine, now arc voltageU7L=0, now the output voltage of welding machine electric power produces meeting transition from high to low, the output electricity of welding machine electric power when transition finishesPress as U1L, the voltage sum of the external devices of welding machine work output loop when transition finishes is UHL, when transition finishesElectric current in welding machine work output loop is IL, due to U1L＝U7L+UHL，U7L=0, so UHL＝U1LSo, RH＝UHL/IL＝U1L/IL。
Preferably, if the output voltage of welding machine electric power by welding machine work standby voltage UaBecome lower than the first threshold voltage K1,The output voltage of welding machine electric power produces transition from high to low, K1＜Ua*4/5。
Preferably, if the differential value of the output voltage of welding machine electric power is less than-5000 volts/seconds, the output electricity of welding machine electric powerPressure produces transition from high to low.
The manual welding machine energy-saving control device of embodiment five, utilizes in machine initial arc process and welding process, and welding machine occursThe welding machine actual output voltage U sampling in of short duration output short-circuit duration1LWith short circuit current IL, calculate manual weldingMachine output loop cable resistance RH, and store in the first register. The manual welding machine energy-saving control device of embodiment five,In machine initial arc process and welding process, can automatically calculate manual welding machine output loop cable resistance RHAnd be updated toIn register, can upgrade automatically, in real time, exactly manual welding machine output loop cable resistance, thus can be real-time, smartReally detect and obtain manual welding machine arc voltage.
The foregoing is only preferred embodiment of the present utility model, in order to limit the utility model, not all in this realityWithin novel spirit and principle, any amendment of making, be equal to replacement, improvement etc., all should be included in this practicality newWithin the scope of type protection.
Claims (9)
1. a manual welding machine energy-saving control device, is characterized in that, comprises current detection circuit, voltage detecting circuit, controller;
The same current detection circuit of described controller, voltage detecting circuit connect respectively;
Described current detection circuit, for detection of the electric current in welding machine work output loop and output to described controller;
Described voltage detecting circuit, for detection of the output voltage of welding machine electric power and output to described controller;
Described controller, when the electric current in welding machine work output loop is greater than lower limit operating current Ir, and the output voltage of welding machine electric power is greater than and breaks voltage Um, start to control described welding machine electric power output 0V and continue setting-up time t0, then control described welding machine electric power and exported standby voltage Ub；
Uo＜Um＜Ua，Ub≤Ua，UoOperating voltage while stablizing welding for welding machine, UaFor welding machine work standby voltage, UbFor completing standby voltage.
2. manual welding machine energy-saving control device according to claim 1, is characterized in that,
Ua＝Ub。
3. manual welding machine energy-saving control device according to claim 1, is characterized in that,
Ub＜Ua。
4. manual welding machine energy-saving control device according to claim 1, is characterized in that,
50V＜Ua＜100V，25V＜Um＜45V,10V＜Uo＜44V,1A≤Ir, 0.1 second < t0 < 1 second.
5. a manual welding machine energy-saving control device, is characterized in that, comprises current detection circuit, voltage detecting circuit, controller;
Described current detection circuit, for detection of the electric current in welding machine work output loop and output to described controller;
Described voltage detecting circuit, for detection of the output voltage of welding machine electric power and output to described controller;
Described controller, when the electric current in welding machine work output loop is greater than lower limit operating current Ir, and arc voltage is greater than and breaks voltage Um, start to control described welding machine electric power output 0V and continue setting-up time t0, then control described welding machine electric power and exported standby voltage Ub；
Uo＜Ua，Ub≤Ua，UoOperating voltage while stablizing welding for welding machine, UaFor welding machine work standby voltage, UbFor completing standby voltage.
6. manual welding machine energy-saving control device according to claim 5, is characterized in that,
Described manual welding machine energy-saving control device, also comprises the first register;
Described the first register, for depositing manual welding machine output loop cable resistance;
Described controller, calculates manual welding machine arc voltage;
U7＝U1-RH*I，U7For manual welding machine arc voltage, U1For the output voltage of welding machine electric power, I is the electric current in welding machine work output loop, RHIt is the manual welding machine output loop cable resistance in the first register.
7. manual welding machine energy-saving control device according to claim 6, is characterized in that,
Described controller, when the output voltage of welding machine electric power produces transition from high to low, calculates output manual welding machine power supply output loop resistance RHTo described the first register; RH＝U1L/IL,U1LThe output voltage of the welding machine electric power while end for transition, ILElectric current in welding machine work output loop while end for transition.
8. manual welding machine energy-saving control device according to claim 6, is characterized in that,
If the output voltage of welding machine electric power is by welding machine work standby voltage UaBecome lower than the first threshold voltage K1, the output voltage of welding machine electric power produces transition from high to low, K1＜Ua*4/5。
9. manual welding machine energy-saving control device according to claim 6, is characterized in that,
If the differential value of the output voltage of welding machine electric power is less than-5000 volts/seconds, the output voltage of welding machine electric power produces transition from high to low.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520798337.1U CN205254311U (en) | 2015-10-15 | 2015-10-15 | Manual welding machine energy -saving control device |
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| CN201520798337.1U CN205254311U (en) | 2015-10-15 | 2015-10-15 | Manual welding machine energy -saving control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171195A (en) * | 2015-10-15 | 2015-12-23 | 上海通用重工集团有限公司 | Energy-saving control device for manual welding machine |
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- 2015-10-15 CN CN201520798337.1U patent/CN205254311U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171195A (en) * | 2015-10-15 | 2015-12-23 | 上海通用重工集团有限公司 | Energy-saving control device for manual welding machine |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160525 Effective date of abandoning: 20170322 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |