CN2351233Y - Electric current far-control device for electric welding machine - Google Patents
Electric current far-control device for electric welding machine Download PDFInfo
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- CN2351233Y CN2351233Y CN 98219728 CN98219728U CN2351233Y CN 2351233 Y CN2351233 Y CN 2351233Y CN 98219728 CN98219728 CN 98219728 CN 98219728 U CN98219728 U CN 98219728U CN 2351233 Y CN2351233 Y CN 2351233Y
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Abstract
The utility model belongs to an electric current remote-control device for an electric welding machine. The utility model comprises a remote-control signal generator and a signal receiver. The remote-control signal generator can transmit the signal to the signal receiver by a welding holder wire and a ground wire; the signal receiver is formed by the connection of a locking circuit, a D/A converting circuit, and an electric current regulating circuit in the functional way. The utility model is characterized in that the remote-control signal generator is composed of a steady-state circuit and a high-voltage pulse signal generating circuit; a remote-control switch can control the high-voltage pulse signal generating circuit so as to produce a remote-control locking/ unlocking signal; the locking circuit and the D/A converting circuit of the signal receiver are respectively provided with a signal sampling converting circuit; the utility model has simple structure and strong anti-interference performance.
Description
The utility model belongs to the electric welding machine technical field, is specifically related to a kind ofly can regulate electric welding machine welding current remote control device by the electric weld handle line at a distance at weld.
The existing electric welding machine that uses is regulated the welding current device and all is located on the electric welding machine, between welding work pieces and the electric welding machine certain distance is arranged, it is very inconvenient to adjust electric current, need during welding repeatedly to come and go between electric welding machine and the welding work pieces, particularly the high-altitude weld job is more outstanding, be implemented in welding work pieces place adjusting welding current in order to address this problem, someone proposes electric welding machine electric current remote control device, what can enter practicability stage formation product is patent No. ZL94248830 " electric welding machine remote control ", the used electronic component of this remote control current device is many, complex structure, the cost height is to having relatively high expectations of electric welding machine.
The purpose of this utility model is the above-mentioned weak point that overcomes existing electric welding machine electric current remote control device, and an electric welding machine electric current remote control device that used electronic component is few, simple in structure is provided.
Electric welding machine electric current remote control device described in the utility model comprises control signal generator far away and signal receiver and assembles their circuit board, electronic devices and components, relay assembly, switch, transistor, integrated circuit block, the feeder ear function assembles and forms, the control signal generator far away that has shell utilizes electrode holder line and ground wire from the welding position high-voltage pulse far to be controlled signal and is transferred to signal receiver, signal receiver is installed on the electric welding machine or in the electric welding machine, signal receiver is by lock-in circuit, the D/A change-over circuit, current regulating circuit and peripheral auxiliary circuits function connect to form, peripheral auxiliary circuits comprises biasing, circuit such as dividing potential drop, its technical characterstic is: far control signal generator and far control signal by control switch control high-voltage pulse generator generation high pressure wide cut pulse far away; After receiving control signal far away from electrode holder line and ground wire, far to control signal receiver and occur two kinds of duties by turns, one is the electric current adjustment state, as long as signal receiver will be regulated welding current from I welding this moment
MinTo I
MaxChange, during to required current value, break electric arc and stop weldering, transmit a control signal far away this moment again, signal receiver is rotated to its electric current lock-out state of two, and signal receiver will make the welding current value be locked in required numerical value and remain unchanged, electric welding machine enters into duty, can weld workpiece.Change electric current again as need, then break electric arc and stop weldering, give a control signal far away again, receiver is got back to the electric current adjustment state again from lock-out state, repeats said process, can realize any adjusting of electric welding machine electric current.
Aforesaid electric welding machine electric current remote control device, its structure is: far control signal generator and be made up of the high-voltage pulse signal generation circuit of steady-state circuit and the control of this circuit, produce control far away with the steady-state circuit control high-voltage pulse signal generation circuit of controlling its place of switch triggering far away and lock/open signal; Signal receiver is the signal receiver that the convert signals that produces of the lock that utilizes electrode holder line and ground wire to receive to be sent by control signal generator far away/open signal and welding gun welding and stopping welds the pick-off signal of generation, lock-in circuit and D/A change-over circuit respectively have a sample of signal change-over circuit, when press control switch far away send lock/open signal after, the sample of signal change-over circuit of lock-in circuit is from the lock of electrode holder line and ground wire sampling control far away/open high-voltage pulse signal, this signal input and control lock-in circuit correspondence are operated in the corresponding simultaneously output locking/unlocking signal of locking/unlocking condition, if when exporting unlocking signal earlier, make D/A change-over circuit and current regulating circuit be in unlocking condition, if the beginning or welding, the sample of signal change-over circuit of D/A change-over circuit is from the switching signal of electrode holder line and ground wire sampling control welding far away, and control D/A change-over circuit and current regulating circuit are regulated electric current from I
MinTo I
MaxChange, when the adjusting electric current rises to required numerical value, stop welding, after the sample of signal change-over circuit stops welding pick-off signal from electrode holder line and ground wire sampling control far away, control D/A change-over circuit and current regulating circuit end in current value when stopping welding with the electric current regulated value, when press once more control switch far away send lock/when opening signal, lock-in circuit is in lock-out state and exports locking signal, make D/A change-over circuit and current regulating circuit be in the locking duty, and the electric welding machine output current value is controlled at the current value of locking when initial, though welding with stop weldering and remain unchanged.Repeat above-mentioned unblanking and the lock-out state operation, can realize electric welding machine electric current the control adjusting far away and operation of size arbitrarily.
Aforesaid electric welding machine electric current remote control device, detailed structure is: the steady-state circuit of far controlling signal generator is a monostable circuit, high-voltage pulse signal generation circuit is the circuit that charges and discharge with the dual-capacitor formation of monostable triggering signal control; The lock-in circuit of signal receiver is connected to form step by step by sample of signal change-over circuit, monostable circuit, JK circuits for triggering, and the output of their primes is connected with the input of back level in turn; The D/A change-over circuit of signal receiver is connected to form step by step by sample of signal change-over circuit, on-off circuit, square-wave oscillator circuit, counting circuit, and the output of their primes is connected with the input of back level in turn; The current regulating circuit of signal receiver is made of jointly clear circuit, the output that overflows drop lock circuit, electric current lock-in circuit, D/A change-over circuit, wherein clear circuit is an on-off circuit, the input of clear circuit is connected with the output of JK circuits for triggering through resistor-capacitor unit, and the output switching terminal of clear circuit is connected with counting circuit the RESET input; Overflow the drop lock circuit and be made of bleeder circuit, on-off circuit, it is the input of on-off circuit that an end and counting circuit overflow the bleeder circuit that end is connected, and the output of on-off circuit is connected with the input of square-wave oscillator circuit; The electric current lock-in circuit is made of an on-off circuit, and the input of this on-off circuit is connected with JK circuits for triggering output through diode series resistor device, and the on-off circuit output is connected with the square-wave oscillator circuit input; The output of D/A change-over circuit and matched resistor R
X, R
YBe connected.
Aforesaid electric welding machine electric current remote control device, more detailed structure is as follows: the monostable circuit of far controlling signal generator is by relay assembly J, capacitor C
7, far control K switch
2Connect to form the loop of an end ground connection, this loop and Zener diode D
10After the parallel connection, anode and resistor R
23, diode D
8Polyphone constitutes after being connected on the feeder ear of control signal generator far away, and the monostable time is by capacitor C
7Resistance value decision with relay assembly J line bag; The high-voltage pulse signal generation circuit of control signal generator far away is by the dual-capacitor C of relay assembly J and serial/parallel conversion
5With C
6Constitute a multiplication of voltage pulse signal generation circuit, this circuit is connected between the feeder ear and ground wire of control signal generator far away; The lock of the lock-in circuit of signal receiver/drive the sample of signal change-over circuit to form by the change-over circuit of sample circuit and coupling, sample circuit constitutes after being serially connected in electrode holder line terminals by the light emitting diode of the optoisolator of an end ground connection and resistor and minimum two Zener diodes, optoisolator is the main change-over circuit that constitutes, and its output is connected with the input of monostable circuit; The welding of D/A change-over circuit/stop the welding signal sampling switching circuit to form by the change-over circuit of sample circuit and coupling, sample circuit constitutes after being serially connected in electrode holder line terminals by the light emitting diode of the optoisolator of an end ground connection and resistor and a minimum Zener diode, optoisolator is the main change-over circuit that constitutes, and its output is connected with the input of on-off circuit; The monostable circuit of lock-in circuit is by integrated circuit block IC
3Be main with bias resistor, discharge and recharge container and constitute; The JK circuits for triggering of lock-in circuit are the JK Master-slave flip-flop circuits, and it is by integrated circuit block IC
2It is main formation; Lock/unblank, overflow, weld/stop the shared on-off circuit of on-off circuit of welding signal control, this on-off circuit promptly is the on-off circuit of D/A change-over circuit, and it is that the master constitutes by switch triode; The on-off circuit of the clear circuit of current regulating circuit is that the master constitutes by switch triode; The square-wave oscillator circuit of D/A change-over circuit is by integrated circuit block IC
4For the bias resistor of advocating peace, discharge and recharge container, the path diode constitutes together; The counting circuit of D/A change-over circuit is by integrated circuit block IC
1It is main formation; The D/A change-over circuit output of current regulating circuit is by integrated circuit block IC
1The digital-to-analogue conversion resistor that is connected with digital output end of digital output end form.
The course of work of this electric welding machine electric current remote control device is described with reference to Fig. 2, Fig. 4, the ground wire of control signal generator far away is connected with welded piece, the A end is connected with the electrode holder line of dc welding machine, the C end is connected with electric torch, can hold A the electric torch end that is connected to the electrode holder line to get final product as not adopting ammeter, for easy to operate, the current divider R of high-voltage pulse generator
fCan be arranged on the welding gun handle, connect with cable; Signal receiver is installed in electric welding machine, and the ground wire of signal receiver is connected with the ground wire of electric welding machine, according to required voltage, with the B end is the feeder ear of each circuit of signal receiver, get 5V to 15V voltage from welder power and use, the D end also can be connected power supply with the B end, and the E end is connected with the electrode holder line.Control signal generator far away has by semiconductor diode D
8, resistor R
23, Zener diode D
10, capacitor C
7, far control K switch
2, the monostable circuit formed of relay assembly J, the monostable time is by the capacitor C of circuit
7Line bag resistance decision with relay assembly J.High-voltage pulse is by capacitor C
5, C
6Produce; D
9Be auxiliary circuit.Resistor R
22And R
24Play current limliting and dividing potential drop effect, so that produce suitable high-voltage pulse signal.When the normally opened contact of K switch 2 disconnections, relay assembly J disconnected, monostable circuit was in the triggering state for the treatment of, capacitor C
5And C
6Through resistor R
24Be connected in parallel on the floating voltage of electric welding machine, each capacitor is filled with the voltage that approximates floating voltage, when pressing control K switch far away
2After, the normally opened contact closure of relay assembly J, normally-closed contact disconnect capacitor C
5And C
6Be transformed into series circuit, these two capacitors are just given signal receiver the high-voltage pulse signal that magnitude of voltage doubles floating voltage approximately by the electrode holder line and the ground wire that connect.Because the voltage of high-voltage pulse signal is higher than four Zener diode D
4, D
5, D
6, D
7Voltage stabilizing value sum, above-mentioned four Zener diodes and two optoisolator G
1, G
2The light emitting diode conducting, the work of the sample of signal change-over circuit of lock-in circuit makes optoisolator G
1Signal is locked/opened in the control of getting between electrode holder line and the ground wire far away, deliver to the integrated circuit block IC of monostable circuit
3, this integrated circuit block is then sent into the voltage signal of a regime width integrated circuit block IC of JK Master-slave flip-flop circuit
2, integrated circuit block IC
2To produce two kinds of output states after receiving signal, if the high-voltage pulse signal of receiving makes the Q pin output high potential of JK master-slave flip-flop, then be the lock-out state of locking signal control, if the high-voltage pulse signal that signal receiver receives makes JK master-slave flip-flop Q pin output electronegative potential, the then unlocking condition of controlling for unlocking signal.Integrated circuit block IC
1With integrated circuit block IC
4And peripheral circuit is formed D/A change-over circuit and current regulating circuit, IC
4Be the main square-wave oscillator circuit that constitutes, counting circuit IC is sent in its output
1Counting.When Q is electronegative potential, promptly during unlocking condition, switch triode BG
2Base potential then by optoisolator G
2Control, when not welding, the floating voltage between electrode holder line and ground wire is applied to four Zener diode D
4-D
7Voltage less than their voltage stabilizing value sum, and greater than two Zener diode D
4, D
5Voltage stabilizing value sum is so have only optoisolator G
2What conducting, the signal sampling circuit of D/A change-over circuit obtained control far away stops welding pick-off signal, switch triode BG
2Conducting, integrated circuit block IC
44 pin be electronegative potential, this not starting of oscillation of integrated circuit block, integrated circuit block IC
1Counter is always 1; When welding, the voltage of electrode holder line reduces, and produces a low-voltage signal that is lower than floating voltage, promptly is the welding switching signal of control far away, and this low-voltage is less than two Zener diode D
4And D
5Voltage stabilizing value sum, optoisolator G
2Do not work switch triode BG
2End integrated circuit block IC
44 pin be high potential, the square-wave oscillator circuit starting of oscillation makes integrated circuit block IC
1Begin counting, its output Q
1To Q
12Then produce one group of binary output signal, numerical value is by little increase, and the corresponding current value is from I
MinTo I
MaxChange, when increasing to the required electric current of welding, break electric arc and stop postwelding, the voltage of electrode holder line is increased to floating voltage, produces a boost signal, promptly be control far away stop welding pick-off signal, be applied among Fig. 2 the voltage between the E end and ground wire greater than Zener diode D
4And D
5Voltage stabilizing value sum and less than Zener diode D
4, D
5, D
6, D
7So voltage stabilizing value sum is optoisolator G
1End optoisolator G
2With switch triode BG
2Conducting again, integrated circuit block IC
44 pin transfer electronegative potential again to, the square-wave oscillator circuit failure of oscillation, this moment counting circuit integrated circuit block IC
1Keep former output state.As press control K switch far away once more after breaking electric arc
2, far to control signal generator and give signal receiver one high-voltage pulse signal again, the voltage that this is higher than four Zener diode voltage stabilizing value sums makes two optoisolator G
1, G
2Work again, Q counter-rotating the becoming high potential of JK master-slave flip-flop, become lock-out state this moment, and this high potential passes through resistor R
13, semiconductor diode D
2Make switch triode BG
2Conducting, integrated circuit block IC
44 pin become electronegative potential again, so once such locking, no matter whether weld, integrated circuit block IC
4All nonoscillatory makes integrated circuit block IC
1The current value of output locking remains unchanged.As also changing welding current, then press control K switch far away once more
2Provide a high-voltage pulse signal again, make Q be inverted to electronegative potential, at this moment arrive unlocking condition, integrated circuit block IC again again
4Regulate current condition when having possessed starting of oscillation and welding again.Simultaneously by switch triode BG
1, resistor R
10, R
11, R
12With capacitor C
3The clear circuit of forming is with integrated circuit block IC
1The counting zero clearing, this moment counting circuit IC
1Return to original state.Welding current can be regulated from minimum state again.After if welding current rises to the maximum current that electric welding machine allows, because diode D
1And resistor R
1The bleeder circuit of forming that overflows the drop lock circuit makes switch triode BG
2Conducting, and then make integrated circuit block IC
4Failure of oscillation, integrated circuit block IC
1Output valve keep maximum, can not surpass.The R of D/A change-over circuit
2To R
9Eight different power of resistance representative, the resistance value that designs them allows their common output end current potential produce variation continuously, and the big I of electric welding machine welding current is by integrated circuit block IC
1Output and the resistor R of connection
2Output numerical value decision to R if electric current need be regulated more carefully, can increase integrated circuit block IC
1The quantity of weighting resistor, resistor R
X, R
YBe the resistor that connects with different electric welding machines coupling, potentiometer W is the potentiometer of nearly control of electric welding machine and manual adjustments electric current.
Because electric welding machine electric current remote control device of the present utility model is simple in structure, used electronic devices and components are than " electric welding machine remote control " much less, realized the electric current regulatory function with a spot of electronic devices and components and fairly simple circuit, easy to operate, cost is low, popularizes easily; Utilize cable that line is transmitted single pulse signal, the pulse width broad, voltage is higher, so very little the decay on the line, control distance far away is identical line with welding, antijamming capability is strong, the reliability height, interchangeability is good.
The detailed structure of electric welding machine electric current remote control device of the present utility model is further specified by embodiment and Figure of description.
Fig. 1 is that the utility model is formed block diagram.1, welding gun 2, far control signal generator 3, electric welding machine 4, lock-in circuit 5, current regulating circuit 6, D/A change-over circuit 7, signal receiver
Fig. 2 is the signal receiver circuit diagram.
Fig. 3 is a signal receiver movement front view.R
1, R
2, R
3, R
4, R
5, R
6, R
7, R
8, R
9, R
10, R
11, R
12, R
13, R
14, R
15, R
16, R
17, R
18, R
19, R
20, R
21Resistor R
x, R
yResistor W potentiometer C
1, C
2, C
3, C
4Capacitor D
1, D
2, D
3Diode D
4, D
5, D
6, D
7Zener diode BG
1, BG
2Triode G
1, G
2Optoisolator IC
1Be 4040 integrated circuit block IC
2Be 4027 integrated circuit block IC
3, IC
4Be NE555 integrated circuit block K
1Change-over switch
Fig. 4 is far controlled signal generator circuit figure.
Fig. 5 is far controlled signal generator movement front view.R
22, R
23, R
24Resistor R
fCurrent divider C
5, C
6, C
7The close device D of electricity
8, D
9Diode D
10Zener diode J, relay assembly K
2Control switch A ammeter far away
Fig. 6 is that high-voltage pulse generator is at the weld cap installation diagram.8, weld cap 9, observation window 10, signal generator shell 11, nut 12, trip bolt 13, sleeve pipe 14, packing ring 15, signal generator line movement 16, nut 17, trip bolt 18, sleeve pipe 19, packing ring 20, electric wire 21, draw electric wire 22, ammeter
Fig. 7 is the installation profile of ammeter at weld cap.23, nut 24, packing ring 25, trip bolt
Be non-limiting examples of the present utility model below.
Example one electric welding machine electric current remote control device
The composition of the electric welding machine electric current remote control device of present embodiment is seen Fig. 1, it comprises the control signal generator 2 far away that is installed in away from electric welding machine 3 welding guns 1 place, the signal receiver 7 that is installed in electric welding machine 3, and signal receiver 7 is made up of lock-in circuit 4, current regulating circuit 5, D/A change-over circuit 6.The feeder ear of control signal generator 2 far away is that the A end is connected with the electrode holder line of electric welding machine 3, and its ground wire is connected with the ground wire of welded piece or electric welding machine 3.The B end and the D end of the feeder ear of signal receiver 7 are obtained positive 5V to 15V power voltage supply from the power supply of electric welding machine 3, and the E end of its feeder ear is connected with electrode holder line link, and its ground wire is connected with the ground wire of electric welding machine.
The signal receiver structure of present embodiment is seen Fig. 2, Fig. 3, and signal receiver 7 is convert signals of producing of the lock that utilizes electrode holder line and ground wire to receive to be sent by control signal generator 2 far away/open signal and welding gun welding and stops welding the pick-off signal of generation.Functions such as signal receiver 7 usefulness electronic devices and components, transistor, switch, integrated circuit block assemble on circuit board, constitute lock-in circuit 4, D/A change-over circuit 6, current regulating circuit 5, peripheral auxiliary circuits, feeder ear B, the D of signal receiver 7 meets positive 5V to 15V and powers, and feeder ear E connects electric welding machine electrode holder line.The lock-in circuit 4 of signal receiver 7 and D/A change-over circuit 6 respectively have a sample of signal change-over circuit, the lock that the sample of signal change-over circuit of lock-in circuit 4 sends from electrode holder line and ground wire sampling control far away signal generator 2/open high-voltage pulse signal, this signal input and control lock-in circuit 4 correspondences are operated in the corresponding simultaneously output locking/unlocking signal of locking/unlocking condition, if during the output unlocking signal, this moment or begin the welding, the sample of signal change-over circuit of D/A change-over circuit 6 is from the switching signal of electrode holder line and ground wire sampling control welding far away, and control D/A change-over circuit 6 and current regulating circuit 5 are regulated electric current from I
MinTo I
MaxChange.When electric current increases to required numerical value, stop welding, the sample of signal change-over circuit stops welding pick-off signal from electrode holder line and ground wire sampling control far away, controls D/A change-over circuit 6 and current regulating circuit 5 the electric current regulated value is ended in current value when stopping welding.Control far away this moment signal generator 2 sends one again and locks/open signal, when this signal controlling lock-in circuit becomes lock-out state and exports locking signal, make D/A change-over circuit 6 and current regulating circuit 5 be in locking duty and lock current regulated value, weld no matter weld this moment or stop, make welding current be locked in required regulated value and remain unchanged.The lock-in circuit 4 of present embodiment is connected to form step by step by sample of signal change-over circuit, monostable circuit, JK circuits for triggering, and the output of their primes is connected with the input of back level in turn; The D/A change-over circuit is connected to form step by step by sample of signal change-over circuit, on-off circuit, square-wave oscillator circuit, counting circuit, and the output of their primes is connected with the input of back level in turn; Current regulating circuit is made of jointly clear circuit, the output that overflows drop lock circuit, electric current lock-in circuit, D/A change-over circuit, and wherein clear circuit is mainly an on-off circuit, by switch triode BG
1, resistor R
10, R
11, R
12With capacitor C
3Form, the input of clear circuit is connected with JK circuits for triggering output through resistor-capacitor unit, and the output switching terminal of clear circuit is connected with counting circuit the RESET input; Overflow the drop lock circuit by diode D
1And resistor R
1Bleeder circuit, the BG2 that forms is that main on-off circuit constitutes, and an end and counting circuit overflow that to hold the bleeder circuit that is connected be the input of on-off circuit, and the output of on-off circuit is connected with the square-wave oscillator circuit input; The electric current lock-in circuit is made of an on-off circuit, and the input of this on-off circuit is through diode D
12Series resistor device R
13Be connected with JK circuits for triggering output, the on-off circuit output is connected with the square-wave oscillator circuit input; The output of D/A change-over circuit and matched resistor R
X, R
YBe connected.
Detailed says, the sample of signal change-over circuit of the lock of the lock-in circuit 4 of present embodiment/open signal is made up of the change-over circuit of sample circuit and coupling, and sample circuit is by the optoisolator G of an end ground connection
1Light emitting diode and resistor R
21, four Zener diode D
4, D
5, D
6, D
7Be connected on feeder ear E end behind the polyphone and constitute optoisolator G
1Triode be main constitute change-over circuit, the input of the monostable circuit of its output and lock-in circuit 4, i.e. integrated circuit block IC
3The 6th pin, the 2nd pin connect, monostable circuit is with integrated circuit block IC
3NE555 is main and bias resistor R in this way
19, discharge and recharge container C
4Constitute; The JK circuits for triggering of lock-in circuit 4 are JK Master-slave flip-flop circuits, and it is by integrated circuit block IC
24027 is main formation in this way; The sampling switching circuit of the welding of D/A change-over circuit 6/stop welding signal is made up of the change-over circuit of sample circuit and coupling, and sample circuit is the optoisolator G of an end ground connection
2Light emitting diode and resistor R
20, two Zener diode D
4, D
5Be connected on feeder ear E end behind the polyphone and constitute optoisolator G
2Triode be the main change-over circuit that constitutes, its emitter stage output is by the commissure resistor R
14With switch triode BG
2Base stage connect optoisolator G
2The colelctor electrode of triode pass through resistor R
15Be connected with power end B end, square-wave oscillator circuit is by integrated circuit block IC
4NE555 is the bias resistor R that advocates peace in this way
17, R
18, discharge and recharge container C
2, path diode D
3Constitute together; Lock/unblank, overflow, weld/stop the shared on-off circuit of on-off circuit of welding signal control, this on-off circuit promptly is the on-off circuit of D/A change-over circuit, and it is by switch triode BG
2Be main formation, output switching terminal and integrated circuit block IC
44 pin connect, also pass through resistor R
16Be connected with feeder ear B end; The on-off circuit of clear circuit is by switch triode BG
1Be main formation, input is through capacitor C
3, resistor R
12With integrated circuit block IC
2Q end connect output switching terminal and integrated circuit block IC
1Reset terminal 11 pin connect; Counting circuit is by integrated circuit block IC
14040 integrated circuit blocks are main formation in this way; The output of D/A change-over circuit 6 is by integrated circuit block IC
1Digital output end and the digital-to-analogue conversion resistor R that connects of digital output end
2, R
3, R
4, R
5, R
6, R
7, R
8, R
9Form.
For easy to use, far control signal receiver 7 and have a change-over switch K of control/closely controlling far away
1, with the conversion of far real/nearly control, resistor R
X, R
YBe the matched resistor of the electric welding machine of different size model, potentiometer W is the potentiometer of control far away and manual adjustments electric current.
The structure of the control signal generator far away of present embodiment is seen Fig. 4, Fig. 5, it utilizes electrode holder line and ground wire transmission signal to give signal receiver 7, and it is by steady-state circuit, high-voltage pulse signal generation circuit and assemble their circuit board, electronic devices and components, relay assembly J, far control K switch
2, ammeter, case function assemble and form, control signal generator movement 15 usefulness trip bolts 12 far away, sleeve pipe 13, packing ring 14, nut 11 that electronic devices and components and circuit board are formed are installed in the casing 10, far control K switch
2Be installed on the casing 10, referring to Fig. 6.
Control K switch far away
2The triggering steady-state circuit produce the lock of control far away/open signal with control high-voltage pulse signal generation circuit; The steady-state circuit of present embodiment adopts monostable circuit, and it is by capacitor C
7, relay assembly J, far control K switch
2Connect to form the loop of an end ground connection, this loop and Zener diode D
10After the parallel connection, anode and resistor R
23, diode D
3Polyphone is connected on signal generator feeder ear A end back and constitutes; What high-voltage pulse signal generation circuit was the monostable triggering signal through relay assembly J is contact triggered with dual-capacitor C
5And C
6The multiplication of voltage of the serial/parallel conversion that constitutes charges and discharge circuit, and this circuit is connected between control signal generator feeder ear A end far away and ground wire, wherein R
22, R
24Be current limliting and divider resistance, R
fThe shunt resistance that is ammeter is a current divider.Present embodiment is installed ammeter 22, and it is between A end and the welding gun that ammeter 22 is connected feeder ear, and ammeter 22 usefulness are installed together with control signal generator movement 15 far away with trip bolt 17, packing ring 19, sleeve pipe 18, nut 16 that ammeter is fixed together.
The control signal generator far away of present embodiment is installed on the weld cap 8, see Fig. 6, Fig. 7, trip bolt 25, nut 23, the packing ring 24 that ammeter 22 usefulness and ammeter are fixed together is installed in the opening part of weld cap 8 bottoms, so just control signal generator far away is installed on the weld cap 8.
Used in the present embodiment:
Integrated circuit block IC
1Be 4040 integrated circuit blocks
Integrated circuit block IC
2Be 4027 integrated circuit blocks
Integrated circuit block IC
3Be the NE555 integrated circuit block
Integrated circuit block IC
4Be the NE555 integrated circuit block.Their each pin in circuit connect all shown in Fig. 2, Fig. 3.The used integrated circuit block of the utility model can select other and the corresponding ic circuit piece of above-mentioned functions to use, and can select the satisfactory integrated circuit block of operation technique parameter to use according to the electric welding machine of different size model.
Claims (3)
1, a kind of electric welding machine electric current remote control device, circuit board, electronic devices and components, relay assembly, switch, transistor, integrated circuit block, feeder ear function that it comprises control signal generator far away and signal receiver and assembles them assemble and form, the control signal generator far away of band shell utilizes electrode holder line and ground wire transmission signal to give signal receiver, signal receiver is connected to form by lock-in circuit, D/A change-over circuit, current regulating circuit and peripheral auxiliary circuits function, it is characterized in that:
A is far controlled signal generator and is made up of the steady-state circuit of control switch control far away and the high-voltage pulse signal generation circuit of this circuit control;
The b signal receiver is the signal receiver that receives the convert signals that the lock that sent by control signal generator far away/open signal and welding gun welding produce and stop welding the pick-off signal of generation, and lock-in circuit has the sample of signal change-over circuit that the electric current adjusting/locking duty of locking/opening alternately appears in a control signal receiver; The A/D change-over circuit has the sample of signal change-over circuit of a control A/D change-over circuit and current regulating circuit adjusting electric welding machine electric current.
2, electric welding machine electric current remote control device according to claim 1 is characterised in that:
The steady-state circuit of the described control signal generator far away of a is a monostable circuit, and high-voltage pulse signal generation circuit is the circuit that charges and discharge with the dual-capacitor formation of monostable triggering signal control;
The lock-in circuit of the described signal receiver of b is connected to form step by step by sample of signal change-over circuit, monostable circuit, JK circuits for triggering, and the output of their primes is connected with the input of back level in turn;
The D/A change-over circuit of the described signal receiver of c is connected to form step by step by sample of signal change-over circuit, on-off circuit, square-wave oscillator circuit, counting circuit, and the output of their primes is connected with the input of back level in turn;
The current regulating circuit of the described signal receiver of d is made of jointly clear circuit, the output that overflows drop lock circuit, electric current lock-in circuit, D/A change-over circuit, wherein clear circuit is an on-off circuit, the input of clear circuit is connected with JK circuits for triggering output through resistor-capacitor unit, and the output switching terminal of clear circuit is connected with counting circuit the RESET input; Overflow the drop lock circuit and be made of bleeder circuit, on-off circuit, it is the input of on-off circuit that an end and counting circuit overflow the bleeder circuit that end is connected, and the output of on-off circuit is connected with the square-wave oscillator circuit input; The electric current lock-in circuit is made of an on-off circuit, and the input of this on-off circuit is connected with JK circuits for triggering output through diode series resistor device, and the on-off circuit output is connected with the square-wave oscillator circuit input; The output of D/A change-over circuit and matched resistor R
X, R
YBe connected.
3, electric welding machine electric current remote control device according to claim 2 is characterised in that:
A is far controlled the monostable circuit of signal generator by relay assembly J, capacitor C
7Through control K switch far away
2Connect to form the loop of an end ground connection, this loop and Zener diode D
10After the parallel connection, anode and resistor R
23, diode D
8Polyphone constitutes after being connected on the feeder ear of control signal generator far away, and monostable time is by capacitor C
7Resistance value decision with relay assembly J line bag;
B is far controlled the dual-capacitor C of the high-voltage pulse signal generation circuit of signal generator by relay assembly J and serial/parallel conversion
5With C
6Constitute a multiplication of voltage pulse signal generation circuit, this circuit is connected between the feeder ear and ground wire of signal generator;
The sampling switching circuit of the lock of the lock-in circuit of the described signal receiver of c/open signal is made up of the change-over circuit of sample circuit and coupling, sample circuit constitutes after being serially connected in electrode holder line terminals by the light emitting diode of the optoisolator of an end ground connection and resistor and minimum two Zener diodes, optoisolator is the main change-over circuit that constitutes, and its output is connected with the input of the monostable circuit of lock-in circuit;
The sampling switching circuit of the welding of described D/A change-over circuit/stop welding signal is made up of the change-over circuit of sample circuit and coupling, sample circuit constitutes after being serially connected in electrode holder line terminals by the light emitting diode of the optoisolator of an end ground connection and resistor and a minimum Zener diode, optoisolator is the main change-over circuit that constitutes, and its output is connected with the input of on-off circuit;
The monostable circuit of the described lock-in circuit of d is by integrated circuit block IC
3Be main with bias resistor, discharge and recharge container and constitute;
The JK circuits for triggering of the described lock-in circuit of e are the JK Master-slave flip-flop circuits, and it is by integrated circuit block IC
2It is main formation;
The described locking of f/unblank, overflow, weld/stop the shared on-off circuit of on-off circuit of welding signal control, this on-off circuit promptly is the on-off circuit of D/A change-over circuit, it is that the master constitutes by switch triode;
The on-off circuit of the described clear circuit of g is that the master constitutes by switch triode;
The described square-wave oscillator circuit of h is by integrated circuit block IC
4For the bias resistor of advocating peace, discharge and recharge container, the path diode constitutes together;
The described counting circuit of i is by integrated circuit block IC
1It is main formation;
The output of the described D/A change-over circuit of j is by integrated circuit block IC
1The digital-to-analogue conversion resistor that is connected with digital output end of digital output end form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98219728 CN2351233Y (en) | 1998-08-25 | 1998-08-25 | Electric current far-control device for electric welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98219728 CN2351233Y (en) | 1998-08-25 | 1998-08-25 | Electric current far-control device for electric welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2351233Y true CN2351233Y (en) | 1999-12-01 |
Family
ID=33971704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98219728 Expired - Fee Related CN2351233Y (en) | 1998-08-25 | 1998-08-25 | Electric current far-control device for electric welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2351233Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104349861A (en) * | 2012-05-31 | 2015-02-11 | 伊利诺斯工具制品有限公司 | System flor and method of pairing welding devices wherein the pairing includes|a change in welding power and/or welding consumables |
| CN105234601A (en) * | 2015-11-03 | 2016-01-13 | 成都埃森普特科技股份有限公司 | Method and circuit for remote control current of output cable of electric welding machine |
| CN105855665A (en) * | 2015-02-05 | 2016-08-17 | 林肯环球股份有限公司 | Circuits for improved welding performance |
| CN107813031A (en) * | 2017-12-08 | 2018-03-20 | 苏州绿恺动力电子科技有限公司 | Portable inverter arc welding system and its power control method |
| CN113538882A (en) * | 2021-07-16 | 2021-10-22 | 上海爻火微电子有限公司 | Signal transmission circuit and electronic equipment |
-
1998
- 1998-08-25 CN CN 98219728 patent/CN2351233Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104349861A (en) * | 2012-05-31 | 2015-02-11 | 伊利诺斯工具制品有限公司 | System flor and method of pairing welding devices wherein the pairing includes|a change in welding power and/or welding consumables |
| US10507542B2 (en) | 2012-05-31 | 2019-12-17 | Illinois Tool Works Inc. | System and method for pairing welding devices |
| CN105855665A (en) * | 2015-02-05 | 2016-08-17 | 林肯环球股份有限公司 | Circuits for improved welding performance |
| CN105855665B (en) * | 2015-02-05 | 2019-06-21 | 林肯环球股份有限公司 | Circuit for improved welding performance |
| CN105234601A (en) * | 2015-11-03 | 2016-01-13 | 成都埃森普特科技股份有限公司 | Method and circuit for remote control current of output cable of electric welding machine |
| CN107813031A (en) * | 2017-12-08 | 2018-03-20 | 苏州绿恺动力电子科技有限公司 | Portable inverter arc welding system and its power control method |
| CN113538882A (en) * | 2021-07-16 | 2021-10-22 | 上海爻火微电子有限公司 | Signal transmission circuit and electronic equipment |
| CN113538882B (en) * | 2021-07-16 | 2022-12-13 | 上海爻火微电子有限公司 | Signal transmission circuit and electronic equipment |
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