CN205520019U - Ultralow pressure argon arc welding machine - Google Patents
Ultralow pressure argon arc welding machine Download PDFInfo
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- CN205520019U CN205520019U CN201620076229.8U CN201620076229U CN205520019U CN 205520019 U CN205520019 U CN 205520019U CN 201620076229 U CN201620076229 U CN 201620076229U CN 205520019 U CN205520019 U CN 205520019U
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Abstract
The utility model relates to a machining makes the field, indicates an ultralow pressure argon arc welding machine very much, including main transformer, silicon controlled rectifier rectifier circuit, control panel, change -over panel, high -voltage switch board, protection circuit, main transformer's primary connect external power source, secondary coil connects silicon controlled rectifier rectifier circuit, the change -over panel on still set up the relay (J3) of control voltage board work, still including resistance (R3), resistance (R4), the stabilivolt (D1) of establishing ties, resistance (R3) both ends through a change over switch (S1) with resistance (R3) access circuit or open circuit to this partial pressure through resistance (R3) reaches the cooperation with other parts of circuit, can realize that the super wide voltage of 140 -240V starts and work, has extremely strong operating mode commonality, for the argon arc welding machine among the prior art, the utility model discloses simple structure, small, light in weight possiblely reduces than ordinary argon arc welding machine volume and weight greatly.
Description
Technical field
The utility model relates to field of machining and machinebuilding technology, refers in particular to a kind of ultralow pressure argon arc welding machine.
Background technology
Argon arc welding i.e. tungsten inert-gas arc welding, refers to make nonconsumable electrode with industry tungsten or Porous Tungsten, and inert gas (argon gas) makees the welding method protected, and is called for short TIG.In prior art, the rated voltage of general argon arc welding machine is that single-phase 220V ± 20%, only voltage could work in this range, it is seen that argon arc welding machine has at a relatively high requirement to the stability of supply voltage.But under general operating mode, voltage floats the biggest.Under some operating mode, voltage is even as low as below 170V, and this results in common argon arc welding machine and cannot start, and impact produces.
Utility model content
The purpose of this utility model is to be improved for shortcoming present in background technology and problem and innovate, it is provided that one can be at the properly functioning argon arc welding machine of Width funtion (particularly 140-170V ultralow pressure) scope.
The technical solution of the utility model is a kind of ultralow pressure argon arc welding machine of structure, including main transformer, SCR rectification circuit, control panel, change-over panel, hardboard, protection circuit, the primary coil of described main transformer connects external power source, SCR rectification circuit described in secondary coil connection, secondary coil also includes three auxiliary power supplys of low pressure and an auxiliary power supply of high pressure, two connection control panels in three described auxiliary power supplys of low pressure, one connects change-over panel by hand switch W2, the auxiliary power supply of described high pressure is connected to described hardboard by the controllable silicon D3 being arranged in change-over panel, also include connecting control panel and the current divider of change-over panel, lead to overcoupled circuits from the control power supply signal of current divider output with the output of SCR rectification circuit to be connected, as output of the present utility model；
Described SCR rectification circuit includes the IGCT of three Y-connections and corresponding current-limiting resistance and filter capacitor, drive circuit is set on described control panel and drives SCR rectification circuit, described change-over panel includes rectifier bridge U1, connect the relay J 4 of rectifier bridge U1, the voltage-stabiliser tube D2 controlled by relay J 4, connect the voltage stabilizing IC U2 of voltage-stabiliser tube D2, connect the controllable silicon D3 of voltage stabilizing IC U2, after described hand switch W2 connects, the auxiliary power supply of low pressure makes relay J 4 work by rectifier bridge U1 output, through voltage-stabiliser tube D2 voltage stabilizing to voltage stabilizing IC U2, controllable silicon D3 is made to turn on, auxiliary for high pressure power supply is introduced the work of hardboard circuit；
The relay J 3 controlling the work of voltage plate is also set up on described change-over panel, also include the resistance R3 of series connection, resistance R4, voltage-stabiliser tube D1, resistance R3 is accessed circuit or open circuit by a change-over switch by described resistance R3 two ends, and described voltage-stabiliser tube D1 connects relay J 3.
Wherein in an embodiment, described voltage-stabiliser tube D1 is 4149A, described voltage-stabiliser tube D2 is 4142A, described voltage stabilizing IC is HA17324, when external power source is 220V, the auxiliary power supply of described low pressure and the auxiliary power supply of high pressure are respectively 15V and 150V, and the floating voltage connecting SCR rectification circuit is 50V；
When external power source is 170-240V, resistance R3 being accessed circuit, the voltage at voltage-stabiliser tube D1 two ends can reach the voltage making relay J 3 work；When external power source is 140-170V, by resistance R3 open circuit, the voltage at voltage-stabiliser tube D1 two ends can also reach the voltage making relay J 3 work.
Wherein in an embodiment; described protection circuit includes the electrothermal relay J10 being arranged in main transformer, control to connect the auxiliary power supply of low pressure of control panel; when load continuous is more than 60%, when main transformer is warmed up to uniform temperature, electrothermal relay J10 will connect the auxiliary dump of low pressure of control panel.
Advantage of the present utility model:
The utility model is provided with change-over switch S1, when external power source is 170-240V, resistance R3 is accessed circuit, and the voltage at voltage-stabiliser tube D1 two ends can reach the voltage making relay J 3 work；When external power source is 140-170V, by resistance R3 open circuit, the voltage at voltage-stabiliser tube D1 two ends can also reach the voltage making relay J 3 work, and can realize 140-240V super wide voltage and start and work, have extremely strong operating mode versatility；
Relative to argon arc welding machine of the prior art, the utility model simple in construction, volume is little, lightweight.According to measuring and calculating, the utility model can be accomplished to reduce 40% than common argon arc welding machine volume, weight reduction 35%.
Accompanying drawing explanation
Fig. 1 is the utility model circuit connection diagram.
Fig. 2 is that the utility model runs block diagram.
Fig. 3 is the utility model change-over panel circuit diagram.
Fig. 4 is the utility model control panel circuit diagram.
Fig. 5 is the utility model hardboard circuit diagram.
Detailed description of the invention
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Accompanying drawing gives first-selected embodiment of the present utility model.But, the utility model can realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing the purpose of these embodiments is to make to disclosure of the present utility model more thoroughly comprehensively.
It should be noted that when element be considered as " setting " on another element, it can be directly to arrange or be connected on another element or may be simultaneously present centering elements.
Unless otherwise defined, all of technology used herein is identical with the implication that those skilled in the art of the present utility model are generally understood that with scientific terminology.Term used in the description is intended merely to describe concrete enforcement purpose, it is not intended that limit the utility model.
As shown in Figure 1, a kind of ultralow pressure argon arc welding machine, including main transformer, SCR rectification circuit, control panel (Fig. 4), change-over panel (Fig. 3), hardboard (Fig. 5), protection circuit, the primary coil of described main transformer connects external power source, SCR rectification circuit described in secondary coil connection, secondary coil also includes three auxiliary power supplys of low pressure and an auxiliary power supply of high pressure, two connection control panels in three described auxiliary power supplys of low pressure, one connects change-over panel by hand switch W2, the auxiliary power supply of described high pressure is connected to described hardboard by the controllable silicon D3 being arranged in change-over panel, lead to overcoupled circuits from the control power supply signal of current divider output with the output of SCR rectification circuit to be connected, as output of the present utility model, coupling circuit is as shown in fig. 1；
As it is shown in figure 1, described SCR rectification circuit includes the IGCT of three Y-connections and corresponding current-limiting resistance and filter capacitor, described control panel arranges drive circuit and drives SCR rectification circuit；
As shown in Figure 3, described change-over panel includes rectifier bridge U1, connects the relay J 4 of rectifier bridge U1, relay J 4 the voltage-stabiliser tube D2 controlled, the voltage stabilizing IC U2 of connection voltage-stabiliser tube D2, the controllable silicon D3 of connection voltage stabilizing IC U2, after described hand switch is connected, the auxiliary power supply of low pressure makes relay J 4 work by rectifier bridge U1 output, through voltage-stabiliser tube D2 voltage stabilizing to voltage stabilizing IC U2, controllable silicon D3 is made to turn on, auxiliary for high pressure power supply is introduced the work of hardboard circuit, in the present embodiment, described rectifier bridge is D3SB80；
The relay J 3 controlling hardboard work is also set up on described change-over panel, also include the resistance R3 of series connection, resistance R4, voltage-stabiliser tube D1, resistance R3 is accessed circuit or open circuit by a change-over switch S1 by described resistance R3 two ends, and described voltage-stabiliser tube D1 connects relay J 3.
In the present embodiment, described voltage-stabiliser tube D1 is 4149A, described voltage-stabiliser tube D2 is 4142A, described voltage stabilizing IC is HA17324, when external power source (input) is 220V, the auxiliary power supply of described low pressure and the auxiliary power supply of high pressure are respectively 15V and 150V, and the floating voltage connecting SCR rectification circuit is 50V；
When external power source is 170-240V, change-over switch S1 being transferred to " high " shelves, resistance R3 accesses circuit, and the voltage at voltage-stabiliser tube D1 two ends can reach the voltage making relay J 3 work, about 25V；When external power source is 140-170V, change-over switch S1 being transferred to " low " shelves, resistance R3 open circuit, the voltage at voltage-stabiliser tube D1 two ends can also reach the voltage making relay J 3 work, about 23V.
More preferably; as shown in Figure 1; protection circuit in the aforementioned embodiment is arranged between the auxiliary power supply of low pressure and control panel; including electrothermal relay J10, when load continuous is more than 60%, when main transformer is warmed up to uniform temperature; electrothermal relay will connect the auxiliary dump of low pressure of control panel; welding machine quits work, and after waiting main transformer temperature to decline, welding machine just can work on.
Operation principle of the present utility model is:
As in figure 2 it is shown, the drive circuit on control panel controls the work of SCR rectification circuit, the current signal of current divider output, after SCR rectification circuit output leads to overcoupled circuits coupling, exports load through reactance；Segment signal output at drive circuit arranges protection circuit, shields the overload of circuit, particularly as follows:
When external power source is 220V, change-over switch S1 being transferred to " high " shelves, resistance R3 accesses circuit.After welding machine main switch closes, main transformer works, secondary coil has double 50V to export SCR rectification circuit, double low pressure auxiliary power supply 15V exports control panel, single low pressure auxiliary power supply 15V exports change-over panel by hand switch, and also high pressure auxiliary power supply 150V is connected to described hardboard by the controllable silicon D3 being arranged in change-over panel, exports LM124 chip by 7812 voltage stabilizings after double low pressure auxiliary power supply 15V supply control panel is rectified, now LM124 is in the wavy state of envelope, and circuit is without output.After hand switch closes, J1 works, and opens air valve, starts supply.The J1 J2 after certain time that starts working starts working, and circuit begins with power output, and output size of current is by potentiometer W1(as shown in fig. 1) control；
High voltage control aspect, double low pressure auxiliary power supply 15V supply change-over panel on through voltage-stabiliser tube D2 voltage stabilizing to voltage stabilizing IC(3020), voltage stabilizing IC(3020) output make bidirectional triode thyristor D3 turn on, high pressure auxiliary power supply 150V pass through D3 input hardboard, hardboard is started working.As it is shown in figure 5, input being continuously replenished of energy so that at regular intervals, C1, R5 just produce frequency modulated oscillations, then making 34,35 ends produce electric arcs, the output (i.e. welding position) at welding machine produces stable electric arc.Meanwhile, big electric current flows through secondary coil, makes the positive electrification pressure of inductance coil drop to be not enough to keep relay J 3 adhesive on change-over panel so that controllable silicon D3 ends, and hardboard quits work.
Time actually used, external power source has fluctuation, and when outer power voltage is 170-240V, the voltage of above-mentioned each element all can reach the minimum requirements that welding machine runs, and welding machine can be with stable operation.But, when outer power voltage drops to below 170V, control the undertension at relay J 3 two ends of hardboard work so that its work, hardboard can not work, now, change-over switch S1 being transferred to " low " shelves, resistance R3 is shorted, the voltage at relay J 3 two ends controlling hardboard work can reach about 23V, and welding machine can run.
More preferably; as shown in Figure 1; also include that protection circuit, described protection circuit include being arranged in main transformer, controlling to connect the electrothermal relay J10 of the auxiliary power supply of low pressure of control panel, when load continuous is more than 60%; when main transformer is warmed up to uniform temperature; electrothermal relay will connect the auxiliary dump of low pressure of control panel, and welding machine quits work, after waiting main transformer temperature to decline; welding machine just can work on, and the safe operation of butt welding machine provides protection.
Embodiment described in the utility model is only the description carrying out preferred embodiment of the present utility model; not the utility model spirit and scope are defined; on the premise of without departing from the utility model design philosophy; various modification that in this area, the technical solution of the utility model is made by engineers and technicians and improvement; protection domain of the present utility model all should be fallen into; the technology contents that the utility model is claimed, all records in detail in the claims.
Claims (3)
1. a ultralow pressure argon arc welding machine, including main transformer, SCR rectification circuit, control panel, change-over panel, hardboard, protection circuit, the primary coil of described main transformer connects external power source, SCR rectification circuit described in secondary coil connection, secondary coil also includes three auxiliary power supplys of low pressure and an auxiliary power supply of high pressure, two connection control panels in three described auxiliary power supplys of low pressure, one connects change-over panel by hand switch (W2), the auxiliary power supply of described high pressure is connected to described hardboard by the controllable silicon (D3) being arranged in change-over panel, also include connecting control panel and the current divider of change-over panel, lead to overcoupled circuits from the control power supply signal of current divider output with the output of SCR rectification circuit to be connected, output as argon arc welding machine, it is characterized in that:
Described SCR rectification circuit includes the IGCT of three Y-connections and corresponding current-limiting resistance and filter capacitor, drive circuit is set on described control panel and drives SCR rectification circuit, described change-over panel includes rectifier bridge (U1), connect first relay (J4) of rectifier bridge (U1), the second voltage-stabiliser tube (D2) controlled by the first relay (J4), connect the voltage stabilizing IC(U2 of the second voltage-stabiliser tube (D2)), connect voltage stabilizing IC(U2) controllable silicon (D3), after described hand switch (W2) is connected, the auxiliary power supply of low pressure makes the first relay (J4) work by rectifier bridge (U1) output, through the second voltage-stabiliser tube (D2) voltage stabilizing to voltage stabilizing IC(U2), controllable silicon (D3) is made to turn on, auxiliary for high pressure power supply is introduced the work of hardboard circuit；
The second relay (J3) controlling the work of voltage plate is also set up on described change-over panel, also include first resistance (R3) of series connection, the second resistance (R4), the first voltage-stabiliser tube (D1), first resistance (R3) is accessed circuit or open circuit by a change-over switch by described the first resistance (R3) two ends, and described the first voltage-stabiliser tube (D1) connects the second relay (J3).
A kind of ultralow pressure argon arc welding machine the most according to claim 1, it is characterized in that: described voltage stabilizing IC is HA17324, when external power source is 220V, the auxiliary power supply of described low pressure and the auxiliary power supply of high pressure are respectively 15V and 150V, and the floating voltage connecting SCR rectification circuit is 50V；
When external power source is 170-240V, the first resistance (R3) being accessed circuit, the voltage at the first voltage-stabiliser tube (D1) two ends can reach the voltage making the second relay (J3) work；When external power source is 140-170V, by the first resistance (R3) open circuit, the voltage at the first voltage-stabiliser tube (D1) two ends can also reach the voltage making the second relay (J3) work.
A kind of ultralow pressure argon arc welding machine the most according to claim 1; it is characterized in that: described protection circuit includes being arranged in main transformer, controlling to connect the electrothermal relay (J10) of the auxiliary power supply of low pressure of control panel; when load continuous is more than 60%; when main transformer is warmed up to uniform temperature, electrothermal relay (J10) will connect the auxiliary dump of low pressure of control panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620076229.8U CN205520019U (en) | 2016-01-27 | 2016-01-27 | Ultralow pressure argon arc welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620076229.8U CN205520019U (en) | 2016-01-27 | 2016-01-27 | Ultralow pressure argon arc welding machine |
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| Publication Number | Publication Date |
|---|---|
| CN205520019U true CN205520019U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620076229.8U Withdrawn - After Issue CN205520019U (en) | 2016-01-27 | 2016-01-27 | Ultralow pressure argon arc welding machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN205520019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414719A (en) * | 2016-01-27 | 2016-03-23 | 刘劲松 | Ultralow voltage argon arc welding machine |
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2016
- 2016-01-27 CN CN201620076229.8U patent/CN205520019U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105414719A (en) * | 2016-01-27 | 2016-03-23 | 刘劲松 | Ultralow voltage argon arc welding machine |
| CN105414719B (en) * | 2016-01-27 | 2017-10-20 | 刘劲松 | A kind of ultralow pressure argon arc welding machine |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160831 Effective date of abandoning: 20171020 |
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| AV01 | Patent right actively abandoned |