CN206216090U - Electric welding machine welding current remote control interface circuit - Google Patents
Electric welding machine welding current remote control interface circuit Download PDFInfo
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- CN206216090U CN206216090U CN201620783938.XU CN201620783938U CN206216090U CN 206216090 U CN206216090 U CN 206216090U CN 201620783938 U CN201620783938 U CN 201620783938U CN 206216090 U CN206216090 U CN 206216090U
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Abstract
The utility model discloses a kind of electric welding machine welding current remote control interface circuit, including remote control plug J7, the pin of outputs level signals end 4 of the remote control current level device of the remote control plug J7 is connected with inductance, inductance output is connected to lift face filter circuit, separating ratio amplifier circuit, final photoelectrical coupler HCNR200 output voltages is collectively formed by amplifier N1QA and photoelectrical coupler HCNR200 by amplifier N2A with the welding current given circuit being subsequently passed in PC plate, and welding current is realized to control.The utility model amplifies the signal from remote control potentiometer using linear optical coupling isolation, both improve reliability, the level of remote signal is set to meet the requirement of PC plate preset level again, and it is adapted to the requirement of the different machines such as digital control and simulation control simultaneously, and can realize that welding current is local and Remote Control Automatic selection, when remote control connector is plugged, enable optocoupler will automatically send out high level and control circuit to PC plate.
Description
Technical field
The utility model is related to a kind of automation control circuit, and in particular to a kind of electric welding machine welding current Remote Control Interface electricity
Road.
Background technology
For electric welding machine, particularly argon arc welding machine welding current except adjusted by panel control in addition to, it is more and more
The rifle that is adjusted by remote-control box, belt current of user and the mode such as foot control device controlled at one's side in welder, by adjusting remote device
On " welding current " potentiometer, in welding process, realize the regulation of welding current, more effectively control welding process and
Welding quality.As a kind of wired analog control, particularly control cable it is more long when, by produced by remote line as high frequency,
The electromagnetic interference of high pressure etc., can pass to PC plate, influence the functional reliability of PC plate and the safety of device.
Utility model content
Utility model purpose：The purpose of this utility model is to solve deficiency of the prior art, there is provided one kind passes through
Signal from remote control potentiometer is amplified using linear optical coupling isolation, reliability is both improve, again accords with the level of remote signal
The requirement of PC plate preset level is closed, and is adapted to the requirement of the different machines such as digital control and simulation control simultaneously, and weldering can be realized
Connect that electric current is local and Remote Control Automatic selection, when remote control connector is plugged, enable optocoupler and will automatically send out high level and give PC plate control
The electric welding machine welding current remote control interface circuit of circuit.
Technical scheme：A kind of electric welding machine welding current remote control interface circuit described in the utility model, including remote control is inserted
Head J7, the pin of outputs level signals end 4 of the remote control current level device of the remote control plug J7 is connected with one end of inductance L5, institute
The other end for stating inductance L5 is connected in parallel to one end of electric capacity C5Y, resistance R4Y and resistance R3Y, and the resistance R3Y's is another
End is also connected in parallel to 3 pin of diode D3Y, electric capacity C40, diode D2Y and amplifier N1QA, the amplifier N1QA's
2 pin are connected in series with resistance R5Y and variable resistor W1Y, and 1 pin of the amplifier N1QA is connected in parallel to resistance R6Y and electricity
Hold one end of C6Y, the other end of the resistance R6Y is connected with 2 pin of photoelectrical coupler HCNR200, and the electric capacity C6Y's is another
End is connected with 4 pin of photoelectrical coupler HCNR200,2 pin of amplifier N1QA, the 5 pin difference of the photoelectrical coupler HCNR200
3 pin of electric capacity C3, resistance R4 and amplifier N2A are connected with, 1 pin of the amplifier N2A is connected to resistance R64, electricity
Resistance R5, the resistance R5 are also associated with electric capacity C2；1 pin of the remote control plug J7 is connected with one end of inductance L6, the electricity
The other end for feeling L6 is connected in parallel to electric capacity C12, diode V35, diode V30, resistance R1Y and resistance R41, the resistance
R41 is connected to the input of isolation light idol N2Y simultaneously, and the output end of the isolation light idol N2Y is connected to electric capacity C34 and electricity
Resistance R48.
Further, the amplifier N1QA and photoelectrical coupler HCNR200 collectively form separating ratio amplifier circuit.
Further, the other end of the resistance R3Y is connected with the negative electrode of diode D3Y and the anode of diode D2Y,
And the anode and cathode of diode D3Y is grounded, the negative electrode of diode D2Y connects power supply.
Further, the other end of the inductance L6 is connected with the negative electrode of diode V35 and the anode of diode V30,
And the plus earth of diode V35, the negative electrode of diode V30 connects power supply.
Further, the amplifier N1QA and amplifier N2A use LM358 dual operational amplifiers.
Further, the node of the electric capacity C2 and resistance R5 is connected to the welding current given circuit in PC plate.
Further, the scope of remote control electric current is calibrated by variable resistor W1Y.
Beneficial effect：The utility model amplifies the signal from remote control potentiometer by using linear optical coupling isolation, both carries
Reliability high, makes the level of remote signal meet the requirement of PC plate preset level, and be adapted to digital control and simulation simultaneously again
The requirement of the different machines such as control, and can realize that welding current is local and Remote Control Automatic selection, when remote control connector is plugged, enable
Optocoupler will automatically send out high level and control circuit to PC plate.
Brief description of the drawings
Fig. 1 is schematic block circuit diagram of the present utility model.
Specific embodiment
A kind of electric welding machine welding current remote control interface circuit as shown in Figure 1, including remote control plug J7, the remote control
The pin of outputs level signals end 4 of the remote control current level device of plug J7 is connected with one end of inductance L5, and the inductance L5's is another
End is connected in parallel to one end of electric capacity C5Y, resistance R4Y and resistance R3Y, and the other end of the resistance R3Y is also connected in parallel to
3 pin of diode D3Y, electric capacity C40, diode D2Y and amplifier N1QA, 2 pin of the amplifier N1QA are connected in series with
1 pin of resistance R5Y and variable resistor W1Y, the amplifier N1QA is connected in parallel to one end of resistance R6Y and electric capacity C6Y, institute
State the other end of resistance R6Y to be connected with 2 pin of photoelectrical coupler HCNR200, the other end and photoelectrical coupler of the electric capacity C6Y
The 2 pin connection of 4 pin of HCNR200, amplifier N1QA, 5 pin of the photoelectrical coupler HCNR200 be connected to electric capacity C3,
3 pin of resistance R4 and amplifier N2A, 1 pin of the amplifier N2A is connected to resistance R64, resistance R5, the resistance
R5 is also associated with electric capacity C2；1 pin of the remote control plug J7 is connected with one end of inductance L6, and the other end of the inductance L6 is simultaneously
Connection is connected with electric capacity C12, diode V35, diode V30, resistance R1Y and resistance R41, and the resistance R41 is connected to simultaneously
The input of isolation light idol N2Y, the output end of the isolation light idol N2Y is connected to electric capacity C34 and resistance R48.
The other end of the resistance R3Y is connected with the negative electrode of diode D3Y and the anode of diode D2Y, and diode
The anode and cathode ground connection of D3Y, the negative electrode of diode D2Y connects power supply.
The other end of the inductance L6 is connected with the negative electrode of diode V35 and the anode of diode V30, and diode
The plus earth of V35, the negative electrode of diode V30 connects power supply.
The amplifier N1QA and amplifier N2A use LM358 dual operational amplifiers.
The operation principle of this circuit is as follows：
" 4 " pin from remote control plug J7 be remote control current level device outputs level signals, by inductance L5, with
And the filtering interfering such as electric capacity C5Y, resistance R4Y, resistance R3Y, electric capacity C40, diode D2Y, diode D3Y, by amplifier
N1QA amplifiers and linear optical coupling N1Y（HCNR200）The separating ratio amplifier circuit of composition, N1Y（HCNR200）Output voltage is passed through
Amplifier N2A is crossed with the welding current given circuit being subsequently passed in PC plate, welding current is realized to control.By W1Y come school
The scope of quasi- remote control electric current；Isolation optocoupler N2Y realizes that the local control of welding current and remote control enable are automatically selected, and works as remote control
" 1 " pin ground connection of J7 when plug is plugged, N2Y is closed, and secondary exports high level to relevant control circuit, and welding current is given next
Source is by being locally changed to far.
The utility model circuit, the signal from remote control potentiometer is amplified using linear optical coupling isolation, both improves reliability
Property, the level of remote signal is met the requirement of PC plate preset level again, and be adapted to digital control and simulation control etc. simultaneously no
With the requirement of machine, and can realize that welding current is local and Remote Control Automatic selection, when remote control connector is plugged, enabling optocoupler will be from
Dynamic high level of sending out controls circuit to PC plate.
The above, is only preferred embodiment of the present utility model, not makees any formal to the utility model
Limitation, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any ripe
Professional and technical personnel is known, is not being departed from the range of technical solutions of the utility model, when in the technology using the disclosure above
Appearance is made a little change or is modified to the Equivalent embodiments of equivalent variations, as long as without departing from technical solutions of the utility model
Hold, any simple modification, equivalent variations and the modification made to above example according to technical spirit of the present utility model, still
Belong in the range of technical solutions of the utility model.
Claims (7)
1. a kind of electric welding machine welding current remote control interface circuit, it is characterised in that：Including remote control plug J7, the remote control is inserted
The pin of outputs level signals end 4 of the remote control current level device of head J7 is connected with one end of inductance L5, the other end of the inductance L5
One end of electric capacity C5Y, resistance R4Y and resistance R3Y are connected in parallel to, the other end of the resistance R3Y is also connected in parallel to two
3 pin of pole pipe D3Y, electric capacity C40, diode D2Y and amplifier N1QA, 2 pin of the amplifier N1QA are connected in series with electricity
1 pin of resistance R5Y and variable resistor W1Y, the amplifier N1QA is connected in parallel to one end of resistance R6Y and electric capacity C6Y, described
The other end of resistance R6Y is connected with 2 pin of photoelectrical coupler HCNR200, the other end and photoelectrical coupler of the electric capacity C6Y
The 2 pin connection of 4 pin of HCNR200, amplifier N1QA, 5 pin of the photoelectrical coupler HCNR200 be connected to electric capacity C3,
3 pin of resistance R4 and amplifier N2A, 1 pin of the amplifier N2A is connected to resistance R64, resistance R5, the resistance
R5 is also associated with electric capacity C2；1 pin of the remote control plug J7 is connected with one end of inductance L6, and the other end of the inductance L6 is simultaneously
Connection is connected with electric capacity C12, diode V35, diode V30, resistance R1Y and resistance R41, and the resistance R41 is connected to simultaneously
The input of isolation light idol N2Y, the output end of the isolation light idol N2Y is connected to electric capacity C34 and resistance R48.
2. a kind of electric welding machine welding current remote control interface circuit according to claim 1, it is characterised in that：The amplifier
N1QA and photoelectrical coupler HCNR200 collectively form separating ratio amplifier circuit.
3. a kind of electric welding machine welding current remote control interface circuit according to claim 1, it is characterised in that：The resistance
The other end of R3Y is connected with the negative electrode of diode D3Y and the anode of diode D2Y, and the anode and cathode of diode D3Y is grounded,
The negative electrode of diode D2Y connects power supply.
4. a kind of electric welding machine welding current remote control interface circuit according to claim 1, it is characterised in that：The inductance L6
The other end be connected with the negative electrode of diode V35 and the anode of diode V30, and diode V35 plus earth, diode
The negative electrode of V30 connects power supply.
5. a kind of electric welding machine welding current remote control interface circuit according to claim 1, it is characterised in that：The amplifier
N1QA and amplifier N2A use LM358 dual operational amplifiers.
6. a kind of electric welding machine welding current remote control interface circuit according to claim 1, it is characterised in that：The electric capacity C2
And the node of resistance R5 is connected to the welding current given circuit in PC plate.
7. a kind of electric welding machine welding current remote control interface circuit according to claim 1, it is characterised in that：By can power transformation
W1Y is hindered to calibrate the scope of remote control electric current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620783938.XU CN206216090U (en) | 2016-07-25 | 2016-07-25 | Electric welding machine welding current remote control interface circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620783938.XU CN206216090U (en) | 2016-07-25 | 2016-07-25 | Electric welding machine welding current remote control interface circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206216090U true CN206216090U (en) | 2017-06-06 |
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ID=58780069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620783938.XU Active CN206216090U (en) | 2016-07-25 | 2016-07-25 | Electric welding machine welding current remote control interface circuit |
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| CN (1) | CN206216090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524090A (en) * | 2019-09-03 | 2019-12-03 | 上海沪工焊接集团股份有限公司 | A kind of current regulating circuit |
-
2016
- 2016-07-25 CN CN201620783938.XU patent/CN206216090U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110524090A (en) * | 2019-09-03 | 2019-12-03 | 上海沪工焊接集团股份有限公司 | A kind of current regulating circuit |
| CN110524090B (en) * | 2019-09-03 | 2021-08-20 | 上海沪工焊接集团股份有限公司 | Current regulating circuit |
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