CN201841345U - Output circuit of argon arc welding machine - Google Patents
Output circuit of argon arc welding machine Download PDFInfo
- Publication number
- CN201841345U CN201841345U CN2010205181871U CN201020518187U CN201841345U CN 201841345 U CN201841345 U CN 201841345U CN 2010205181871 U CN2010205181871 U CN 2010205181871U CN 201020518187 U CN201020518187 U CN 201020518187U CN 201841345 U CN201841345 U CN 201841345U
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- arc welding
- argon arc
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Abstract
An output circuit of an argon arc welding machine comprises a rectifying filter circuit, a power conversion circuit, a secondary rectifying circuit, a welding output circuit, a PWM (pulse width modulation) control circuit, a CPU (central processing unit) circuit and a welding gun switching circuit. An external alternating-current power source outputs power to a welding gun sequentially via the rectifying filter circuit, the power conversion circuit, the secondary rectifying circuit and the welding output circuit, and the welding gun switching circuit is connected with the power conversion circuit sequentially by the CPU circuit and the PWM control circuit. The output circuit is characterized in that the CPU circuit comprises a manual welding control circuit, an argon arc welding control circuit and a display driving circuit, and the display driving circuit is connected with a digital display circuit. When performing argon arc welding, a technician can manually change welding processes at any time according to different conditions. The output circuit of an argon arc welding machine is simple in structure and convenient in operation.
Description
Technical field
The utility model relates to argon arc welding machine, especially the current output circuit of argon arc welding machine.
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 to the metal wlding; make wlding on by the weldering base material, be melted into the liquid bath that forms by high electric current; make a kind of solder technology that is reached metallurgical binding by weldering metal and 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.
Manual welding mainly comprises two kinds of common solder technology, and the first Contact welding welding system, Contact welding welding system can be categorized as from the low price to the high price, usually restriction or control temperature.Application is depended in selection.For example, surface mount is used usually and is required less heat than via-hole applications; Second heated air (hot blast) welding, hot gas welding were connected and are used nozzle the air or the inert gas of heating, as nitrogen, pointed to pad and pin and finished.The blast heater option comprises from simple handheld unit and heats single position, heats a plurality of positions to complicated automatic unit design.Rectangle, cylindrical and other compact package are taken off and changed to hand held system.Automatic system is taken off and is closed the replacing complex assemblies, arranges assembly such as close pin and area.
Though argon arc welding is similar on the circuit of welding with manual welding, its welding procedure difference respectively has pluses and minuses, and in the welding procedure of reality, the operator selects different solder technology as required.In the prior art, argon arc welding machine and manual welding machine are independently to separate, and the operator needs to open different welding machines and welds when implementing different solder technology, so, operate more loaded down with trivial details, and cost height.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of argon arc welding machine output circuit, can change solder technology at any time by manual type according to different situations, and this circuit structure is simple, and is easy to operate.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of argon arc welding machine output circuit, comprise current rectifying and wave filtering circuit, power conversion circuit, secondary rectification circuit, welding output circuit, pwm control circuit, cpu circuit, arc welding gun switch circuit, external ac power source outputs to welding gun by described current rectifying and wave filtering circuit, power conversion circuit, secondary rectification circuit, welding output circuit successively, and described arc welding gun switch circuit is connected with power conversion circuit by cpu circuit, pwm control circuit successively; Described cpu circuit comprises manual welding control circuit, argon arc welding control circuit, display driver circuit, and described display driver circuit is connected with digital display circuit.The welding machine original state is a manual welding, when triggering the arc welding gun switch circuit, the arc welding gun switch circuit is given input signal of cpu circuit, cpu circuit is according to the program of inside, enable the argon arc welding control circuit, welding machine forwards in the technology of argon arc welding, carry out in the program of argon arc welding at welding machine, the arc welding gun switch circuit whether have signal to be input to cpu circuit just to be related to argon-arc welding gun be that action is opened or turn-offed.When giving low level signal of cpu circuit by the arc welding gun switch circuit, the welding gun of argon arc welding is in opening state; When giving high level signal of cpu circuit by the arc welding gun switch circuit, the welding gun of argon arc welding is in off state.
As improvement, be provided with fault secure circuit, described current rectifying and wave filtering circuit, power conversion circuit, secondary rectification circuit, be connected with described cpu circuit by described fault secure circuit respectively.When the power device circuit in the circuit: current rectifying and wave filtering circuit, power conversion circuit, when secondary rectification circuit breaks down; fault secure circuit can detect fault automatically; send failure warning to cpu circuit then; cpu circuit sends pwm control circuit according to failure condition and turn-offs instruction; pwm control circuit is carried out the cpu circuit instruction power conversion circuit is ended shutoff; cut-off current output fully escapes injury with protection entire circuit and operating personnel.
As improvement, be provided with current sampling circuit, described current sample electric current is connected with cpu circuit with welding output circuit respectively.Current sampling circuit can feed back to cpu circuit with the size of output current, and cpu circuit can be controlled power conversion circuit automatically according to the conversion of output current.
The beneficial effect that the utility model is compared with prior art brought is:
The adding of arc welding gun switch circuit and cpu control circuit, the workman can change solder technology at any time by manual type according to different situations, and this circuit structure is simple when carrying out argon arc welding, easy to operate;
The adding of fault secure circuit can be at current rectifying and wave filtering circuit, power conversion circuit, when secondary rectification circuit breaks down, and detects fault automatically and protects.
Description of drawings
Fig. 1 is the utility model circuit module connection layout.
The specific embodiment
Below in conjunction with Figure of description the utility model is further specified.
As shown in Figure 1; a kind of argon arc welding machine output circuit comprises current rectifying and wave filtering circuit 1, power conversion circuit 2, secondary rectification circuit 3, welding output circuit 4, pwm control circuit 6, current sampling circuit 5, fault secure circuit 9, cpu circuit 7, arc welding gun switch circuit 8.Outside 220V AC power outputs to welding gun by described current rectifying and wave filtering circuit 1, power conversion circuit 2, secondary rectification circuit 3, welding output circuit 4 successively.Described welding gun circuit is connected to power conversion circuit 2 by cpu circuit 7, pwm control circuit 6 successively.Described arc welding gun switch circuit 8 is located in the welding gun.Described current sampling circuit 5 is connected with cpu circuit 7 with welding output circuit 4 respectively, and current sampling circuit 5 can feed back to the size of output current cpu circuit 7, and cpu circuit 7 can be controlled power conversion circuit 2 automatically according to the conversion of output current.Described cpu circuit 7 comprises manual welding control circuit 10, argon arc welding control circuit 11, display driver circuit 12, and described display driver circuit 12 is connected with digital display circuit 13.The welding machine original state is a manual welding, what welding machine was carried out is manual welding control circuit 10, when triggering the arc welding gun switch circuit, arc welding gun switch circuit 8 is given 7 one input signals of cpu circuit, cpu circuit 7 is enabled argon arc welding control circuit 11 according to the program of inside, and welding machine forwards in the technology of argon arc welding, carry out in the program of argon arc welding at welding machine, the arc welding gun switch circuit whether have signal to be input to cpu circuit 7 just to be related to argon-arc welding gun be that action is opened or turn-offed.When giving 7 one low level signals of cpu circuit by arc welding gun switch circuit 8, the welding gun of argon arc welding is in opening state; When giving 7 one high level signals of cpu circuit by arc welding gun switch circuit 8, the welding gun of argon arc welding is in off state.The technical staff can change solder technology by manual type at any time according to different situations, and this circuit structure is simple, and is easy to operate.
When the power device circuit in the circuit: current rectifying and wave filtering circuit 1, power conversion circuit 2, when secondary rectification circuit 3 breaks down; fault secure circuit 9 can detect fault automatically; send failure warning to cpu circuit 7 then; cpu circuit 7 sends pwm control circuit 6 according to failure condition and turn-offs instruction; pwm control circuit 6 is carried out cpu circuit 7 instructions power conversion circuit 2 is ended shutoff; cut-off current output fully escapes injury with protection entire circuit and operating personnel.
Claims (3)
1. argon arc welding machine output circuit, comprise current rectifying and wave filtering circuit, power conversion circuit, secondary rectification circuit, welding output circuit, pwm control circuit, cpu circuit, arc welding gun switch circuit, external ac power source outputs to welding gun by described current rectifying and wave filtering circuit, power conversion circuit, secondary rectification circuit, welding output circuit successively, and described arc welding gun switch circuit is connected with power conversion circuit by cpu circuit, pwm control circuit successively; It is characterized in that: described cpu circuit comprises manual welding control circuit, argon arc welding control circuit, display driver circuit, and described display driver circuit is connected with digital display circuit.
2. a kind of argon arc welding machine output circuit according to claim 1 is characterized in that: be provided with fault secure circuit, described current rectifying and wave filtering circuit, power conversion circuit, secondary rectification circuit are connected with described cpu circuit by described fault secure circuit respectively.
3. a kind of argon arc welding machine output circuit according to claim 2 is characterized in that: be provided with current sampling circuit, described current sample electric current is connected with cpu circuit with welding output circuit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205181871U CN201841345U (en) | 2010-09-06 | 2010-09-06 | Output circuit of argon arc welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205181871U CN201841345U (en) | 2010-09-06 | 2010-09-06 | Output circuit of argon arc welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201841345U true CN201841345U (en) | 2011-05-25 |
Family
ID=44036249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205181871U Expired - Fee Related CN201841345U (en) | 2010-09-06 | 2010-09-06 | Output circuit of argon arc welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201841345U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218584A (en) * | 2011-06-10 | 2011-10-19 | 李峰华 | Portable central processing unit (CPU) controlled high-power electric welding machine |
| CN106077894A (en) * | 2016-06-30 | 2016-11-09 | 山东奥太电气有限公司 | A kind of carrier wave without control line plasma cutting inverter control system of band trap |
-
2010
- 2010-09-06 CN CN2010205181871U patent/CN201841345U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102218584A (en) * | 2011-06-10 | 2011-10-19 | 李峰华 | Portable central processing unit (CPU) controlled high-power electric welding machine |
| CN106077894A (en) * | 2016-06-30 | 2016-11-09 | 山东奥太电气有限公司 | A kind of carrier wave without control line plasma cutting inverter control system of band trap |
| CN106077894B (en) * | 2016-06-30 | 2017-09-15 | 山东奥太电气有限公司 | It is a kind of with trap without control line carrier wave plasma cutting inverter control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20110906 |