CN2296795Y - Performance improved electric welder control panel - Google Patents
Performance improved electric welder control panel Download PDFInfo
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- CN2296795Y CN2296795Y CN 97236289 CN97236289U CN2296795Y CN 2296795 Y CN2296795 Y CN 2296795Y CN 97236289 CN97236289 CN 97236289 CN 97236289 U CN97236289 U CN 97236289U CN 2296795 Y CN2296795 Y CN 2296795Y
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- circuit
- electric
- relay
- control circuit
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Abstract
The utility model relates to an electric welder control panel with improved performance. The utility model is provided with an automatic gear shifting circuit and a high frequency interference eliminating circuit. The utility model is composed of a control circuit board, an electric control circuit and an electronic component. The electric control circuit is provided with a welder power supply, a high frequency oscillator, a workpiece, a welding stick, a control power supply, a filtering voltage stabilizing circuit, a high frequency control circuit, a welding current setting circuit, a welding current control circuit and a welding voltage feedback circuit. The utility model is characterized in that the electric control circuit is also provided with a voltage comparing circuit, an executive circuit and an auxiliary rectification circuit; the voltage comparing circuit is composed of an integrated circuit IC 1, and resistors R1, R2 and R3; the executive circuit is composed of a transistor BG 2, a diode BG 1, a relay J3 and a resistor R4.
Description
What the electric welding machine control panel that the utility model performance is improved related to is a kind of electric welding machine control panel that has fluid drive, eliminates high-frequency interferencing circuit.
Present commercially available electric welding machine control circuit generally is made of welder power, high-frequency generator, control panel power supply, filter regulator circuit, high frequency control circuit, welding current given circuit, welding current control circuit, weldingvoltage feedback circuit, size of current retaining change-over switch, constitutes the control circuit electronic devices and components and is installed on the control panel.The electric welding machine control circuit board has the following disadvantages at present: 1, in the time will changing the size retaining of welding current, have into removing to pull change-over switch K
1Can't realize shaking control; 2, the weldingvoltage feedback circuit directly links to each other with welder power output terminals A, 2 of B, when high-frequency generator vibrates, produce high-frequency interferencing signal A, B at 2, these interfering signals can enter into the weldingvoltage feedback circuit, simultaneously also can enter into filter regulator circuit, high frequency control circuit, welding current given circuit, welding current control circuit by control panel, can cause the welding machine misoperation, cause component wear.
The purpose of this utility model is the electric welding machine control panel that provides a kind of performance to be improved at the weak point that present electric welding machine control circuit exists, have voltage comparator circuit, executive circuit, auxiliary rectifier circuit, do not need when being characterized in regulating welding current to go gearshift with manpower, the interfering signal that high-frequency generator produces can not pass in other control circuits goes, and avoids welding machine to produce misoperation.
The electric welding machine control panel that performance is improved takes following scheme to realize: the electric welding machine control panel structure that performance is improved is made of control circuit board, electric control circuit, electronic devices and components.Electric controling line route welder power, high-frequency generator, workpiece, welding rod, control power supply, filter regulator circuit, weldingvoltage feedback circuit, voltage comparator circuit, executive circuit, auxiliary rectifier circuit constitute.Voltage comparator circuit is by IC
1, resistance R
1, R
2, R
3Constitute IC
1Can adopt operational amplifier integrated package or voltage comparator integrated package, IC
12 pin connecting resistance R
1, R
2, R
1The other end and the electric current regulator potentiometer W in the welding current given circuit
1Sliding point link to each other IC
13 pin ground connection, IC
11 pin and 2 pin between be connected with resistance R
3, R
2Another termination E.Executive circuit is by triode BG
2, diode BG
1, analog switch or relay J
3, resistance R
4Constitute resistance R
4An end and IC
11 pin link to each other the other end and triode BG
2Base stage link to each other BG
2Grounded emitter, BG
2Colelctor electrode and relay J
3, diode BG
1Anode links to each other, J
3The other end, BG
1Negative terminal link to each other relay J with E
3Normally-closed contact link to each other with 2 of C, the D of welder power.Two outputs of auxiliary rectifier circuit are respectively with welder power output B and relay J
1-2Normally opened contact F link to each other.One termination welder power output B of weldingvoltage feedback circuit, another termination G and relay J
1-2Common port, J
1-2Normally-closed contact link to each other relay J with the welder power output terminals A
2Normally-closed contact J
2-2, J
2-3Control power supply and filter regulator circuit are coupled together.
The electric welding machine control panel that performance is improved does not need with manually going to pull the change-over switch gear shift, as rotatory current adjusting knob W when regulating welding current
1When regulating welding current, but fluid drive, for condition has been created in the control of shaking of welding current; Work as relay J
1, J
2During adhesive, high-frequency generator work also produces High-frequency Interference, and this moment, the G of weldingvoltage feedback circuit passed through relay J
1-2Contact and normally opened contact F connect, and disconnect with welder power output terminals A point, and the interference at A place can not enter into the weldingvoltage feedback circuit, when relay adhesive high-frequency generator is worked, and relay J
2-2, J
2-3The contact disconnects control power supply and filter regulator circuit, interfering signal can not be passed to by the control power supply go in other control circuits can not cause the welding machine misoperation, and element can not damage.
The utility model is described in further detail below with reference to accompanying drawing.
Fig. 1 is a prior art electric welding machine control panel electric control circuit schematic diagram.
Fig. 2 is the electric welding machine control panel electric control circuit schematic diagram that performance is improved.
Constitute by control circuit board, electric control circuit, electronic devices and components with reference to accompanying drawing 1 prior art electric welding machine control panel.Electric controling line route welder power (1), high-frequency generator (2), workpiece (3), welding rod (4), control panel power supply (5), filter regulator circuit (6), high frequency control circuit (7), welding current given circuit (8), welding current control circuit (9), weldingvoltage feedback circuit (10), size of current shelves change-over switch K
1(11) constitute, the electronic devices and components that constitute electric control circuit comprise that integrated circuit is assemblied on the electric control panel.
The electric welding machine control panel that is improved with reference to accompanying drawing 2 performances is made of control circuit board, electric control circuit, electronic devices and components.Electric controling line route welder power (1), high-frequency generator (2), workpiece (3), welding rod (4), control power supply (5), filter regulator circuit (6), high frequency control circuit (7), welding current given circuit (8), welding current control circuit (9), weldingvoltage feedback circuit (10), voltage comparator circuit (12), executive circuit (13), auxiliary rectifier circuit (14) constitute.The welder power output is A, B.Voltage comparator circuit is by IC
1, resistance R
1, R
2, R
3Constitute IC
1Can adopt operational amplifier integrated package such as μ A741, LM358, LM324, or voltage comparator integrated package such as LM311, LM383, LM319.Accompanying drawing 2 is the annexation when adopting operational amplifier integrated package LM358, wherein resistance R
1An end and the electric current regulator potentiometer W in the welding current given circuit (8)
1Sliding point link to each other R
1The other end and resistance R
2, R
3, IC
12 pin link to each other IC
12 pin and 1 pin between be connected with resistance R
3, R
2Another termination power E.Executive circuit (13) is by triode BG
2, diode BG
1, analog switch or relay J
3, resistance R
4Constitute, wherein resistance R
4An end and IC
11 pin link to each other the other end and BG
2Base stage link to each other BG
2Grounded emitter, BG
2Colelctor electrode and J
3, BG
1Anode link to each other J
3The other end, BG
1Negative terminal link to each other J with power supply E
3Normally-closed contact link to each other with 2 of C, the D of welder power.Two outputs of auxiliary rectifier circuit (14) respectively with welder power output B and relay J
1-2Normally opened contact F link to each other a termination welder power output B of weldingvoltage feedback circuit (10), another termination G and relay J
1-2Common port, J
1-2Normally-closed contact and welder power output terminals A, relay J
2Normally-closed contact J
2-2, J
2-3Connect control power supply and filter regulator circuit, auxiliary rectifier circuit can adopt halfwave rectifier, full-wave rectification, bridge rectifier.
The utility model operation principle is as follows: 1, when welding current hour, electric current regulator potentiometer W
1The low IC of voltage of sliding point
11 pin output high level, relay J
3Adhesive, its normally-closed contact disconnects, and makes 2 disconnections of C, D, makes welding machine be in little current work state; After transferring welding current greatly, W
1The voltage of sliding point raises, IC after being raised to certain numerical value
11 pin output low level, J
3Outage, its normally-closed contact makes 2 connections of C, D of welder power (1), makes welding machine be in big current work state, and contrast accompanying drawing 1 is J as can be seen
3Normally-closed contact played K switch in the accompanying drawing 1
1Effect, when regulating welding current, electric welding machine changes big retaining into by little retaining automatically like this, vice versa, do not need to go gearshift with manpower again, for condition has been created in the remote control of welding current.2, be in zero load (welding) state A, the higher relay J of B two point voltages when welding machine
1Adhesive, the G point of weldingvoltage feedback circuit this moment (10) passes through J
1-2Normally opened contact link to each other with F, the voltage of auxiliary rectifier circuit (14) is delivered to the interfering signal of weldingvoltage feedback circuit (10) such welder power (1) A place generation and can not delivered in the weldingvoltage feedback circuit (10), behind the electric arc that ignites, A, B two point voltages reduce J automatically
1No longer adhesive, J
2The outage high frequency quits work, and the G point of weldingvoltage feedback circuit this moment (10) passes through J
1-2Normally-closed contact and A connect.3, work as relay J
2J when picking High-frequency Interference
2-2, J
2-3To control power supply (5) and disconnect with filter regulator circuit (6), High-frequency Interference can not passed in the filter regulator circuit (6) by control power supply (5) again.
Claims (3)
1, the electric welding machine control panel that is improved of a kind of performance, constitute by control circuit board, electric control circuit, electronic devices and components, electric control circuit has welder power, high-frequency generator, workpiece, welding rod, control power supply, filter regulator circuit, high frequency control circuit, welding current given circuit, welding current control circuit, weldingvoltage feedback circuit, it is characterized in that electric control circuit also has voltage comparator circuit, executive circuit, auxiliary rectifier circuit, voltage comparator circuit is by IC
1, resistance R
1, R
2, R
3Constitute IC
12 pin connecting resistance R
1, R
2, R
1The other end and the electric current regulator potentiometer W in the welding current given circuit
1Sliding point link to each other IC
13 pin ground connection, IC
11 pin and 2 pin between be connected with resistance R
3Executive circuit is by triode BG
2, diode BG
1, analog switch or relay J
3, resistance R
4Constitute resistance R
4An end and IC
11 pin links to each other, the other end and triode BG
2Base stage link to each other BG
2Grounded emitter, BG
2Colelctor electrode and relay J
3, diode BG
1Anode links to each other, J
3The other end, BG
1Negative terminal link to each other relay J with power supply E
3Normally-closed contact link to each other with 2 of C, the D of welder power; Two outputs of auxiliary rectifier circuit respectively with welder power output B and relay J
1-2Normally opened contact F link to each other.
2, the electric welding machine control panel that is improved of performance according to claim 1 is characterized in that a termination welder power output B of weldingvoltage feedback circuit, another termination G and relay J
1-2Common port, J
1-2Normally-closed contact link to each other relay J with the welder power output terminals A
2Normally-closed contact J
2-2, J
2-3Connect control power supply and filter regulator circuit.
3, the electric welding machine control panel that is improved of performance according to claim 1 is characterized in that the IC in the voltage comparator circuit
1Adopt operational amplifier integrated package or voltage comparator integrated package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236289 CN2296795Y (en) | 1997-06-11 | 1997-06-11 | Performance improved electric welder control panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97236289 CN2296795Y (en) | 1997-06-11 | 1997-06-11 | Performance improved electric welder control panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2296795Y true CN2296795Y (en) | 1998-11-11 |
Family
ID=33947189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97236289 Expired - Fee Related CN2296795Y (en) | 1997-06-11 | 1997-06-11 | Performance improved electric welder control panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2296795Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248256A (en) * | 2011-07-19 | 2011-11-23 | 沈阳大学 | Self-adaptation anti-interference control system for electrogas welding automatic welder |
| CN106363273A (en) * | 2016-11-16 | 2017-02-01 | 重庆优盾焊接材料有限公司 | Welding machine based on design of voltage-stabilizing circuit |
-
1997
- 1997-06-11 CN CN 97236289 patent/CN2296795Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102248256A (en) * | 2011-07-19 | 2011-11-23 | 沈阳大学 | Self-adaptation anti-interference control system for electrogas welding automatic welder |
| CN106363273A (en) * | 2016-11-16 | 2017-02-01 | 重庆优盾焊接材料有限公司 | Welding machine based on design of voltage-stabilizing circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |