CN206253790U - The communication control system of welding equipment of the compatibility based on analog interface - Google Patents
The communication control system of welding equipment of the compatibility based on analog interface Download PDFInfo
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- CN206253790U CN206253790U CN201621263572.XU CN201621263572U CN206253790U CN 206253790 U CN206253790 U CN 206253790U CN 201621263572 U CN201621263572 U CN 201621263572U CN 206253790 U CN206253790 U CN 206253790U
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Abstract
The utility model discloses a kind of communication control system of the compatible welding equipment based on analog interface.The communication control system includes：Power-supply system for providing power supply, control signal receiving circuit for receiving the simultaneously control signal that switch machine arm/automatic jig sends to welding equipment, for match welding equipment and control welding equipment work working control circuit, for gathering welding equipment output current, voltage and being fed directly to the signal acquisition circuit of mechanical arm/automatic jig, and for the welding equipment output current to collecting, voltage feed back to after abnormal judgement the signal feedback circuit of mechanical arm/automatic jig.The utility model matches welding equipment by working control circuit, and control welding equipment output current, the size of voltage realize the communication of mechanical arm/automatic jig and welding equipment on the basis of original welding equipment control circuit is not changed.
Description
Technical field
The utility model is related to the communication of simulation, Digitalized welding apparatus and mechanical automation equipment, more particularly to can be simultaneous
Hold the communication control system of different simulation welding equipments and mechanical arm/automatic jig communication.
Background technology
With various intelligent, automation man-machine device emergences, in the industrial production, people pass through mechanics of communication, net
Network and entity are combined, and realize the intelligent transformation of manufacture；The welding robot that in the market is commonly present uses CAN, RS-
485th, the communication modes such as analog interface (double 10V control electric currents, voltage give) are realized cooperating with welding equipment, correspondingly,
It is required that welding equipment has corresponding digital communication agreement or corresponding analog interface.
At present, the control signal of the mechanical arm/automatic jig of in the market is generally data signal, only high and low electricity
Flat divides, therefore, an analog communication plate is set to mechanical arm/automatic jig in the prior art, make 2 road 0V of its output extremely
The analog voltage signal of 10V, and the output control signal of traditional welding current, magnitude of voltage for 0V to 5V, 0V to 12V and 0V extremely
15V, it is impossible to matched with the analog voltage signal of mechanical arm/automatic jig, it is impossible to realize Communication Control.Meanwhile, in the market
It is simulation welding equipment that welding equipment is most, without communication and feedback function, it is impossible to realize digitized communication control, and
The control interface and connected mode for simulating welding equipment are various, and each manufacturer's standard does not have uniformity, and a part uses single line
Welding output current, voltage are controlled to adjust, another part adjusts welding output current, voltage using bilinear con- trol, it is impossible to realize
Standard interface, causes manufacturing enterprise to automate transition and is more expensive to manufacture, and is unfavorable for the automation of enterprise's production.
In consideration of it, being necessary that providing a kind of compatible different welding based on analog interface for solving drawbacks described above sets
Standby communication control system realizes the comprehensive communication of welding equipment and mechanical arm/automatic jig.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of compatible different welding based on analog interface
The communication control system of equipment realizes the comprehensive communication of welding equipment and mechanical arm/automatic jig.
In order to solve the above-mentioned technical problem, the compatibility that the utility model is provided is based on the communication of the welding equipment of analog interface
Control system includes：Control signal receiving circuit, for receiving the numeral that mechanical arm/automatic jig sends to welding equipment
Control signal, and the digital controlled signal is converted into corresponding analog signal；Working control circuit, for that will believe from control
The analog signal of number receiving circuit matches into signal that welding equipment can recognize to control welding equipment to realize corresponding operating；Letter
Number Acquisition Circuit, for gather welding equipment output current and output voltage signal and be fed directly to the mechanical arm/
Automatic jig；Signal feedback circuit, for being carried out feeding back after abnormal judgement according to the output current and output voltage signal
To the mechanical arm/automatic jig；Power-supply system, power supply is provided for each circuit module for communication control system.
Its further technical scheme is：The working control circuit includes：Current/voltage given circuit, for according to next
From the signal of control signal receiving circuit and given reference voltage level to welding equipment, with ensure welding equipment output voltage with to
Determine voltage consistent.
Wherein, current/voltage given circuit gives a reference voltage level to welding equipment, by the reality with welding equipment
Border output voltage is made comparisons, then ensures welding equipment output voltage and current/voltage by the PID arithmetic circuit in welding equipment
The setting value of given circuit is consistent so that can be compatible different maximum on the basis of original welding equipment control circuit is not changed
Voltage reference value it is given, realize without again using new welding equipment or individually designed one piece for different welding equipments
Communication Control plate can match different welding equipments and be simulated communication with mechanical arm/automatic jig, realize to exporting
The regulation of electric current, voltage swing.Meanwhile, the working control circuit also includes the control according to mechanical arm/automatic jig
The movable contact closure of signal control relay controls welding equipment to carry out to start to weld, open the work of the work such as air valve, wire feed
Make boot-strap circuit, gas inspection circuit and silk inspection circuit.
Its further technical scheme is：The current/voltage given circuit includes anti-phase scaling circuit, first voltage
Circuit, second voltage is followed to follow circuit, tertiary voltage to follow circuit, the first diode and the second diode.
Wherein, the first voltage follows the input of circuit to give input as voltage, and its output end is connected to institute
State the input of anti-phase scaling circuit and simultaneously as voltage to set output terminal；The second voltage follows the input of circuit
End is connected with the output end of the anti-phase scaling circuit, and its output end is connected with the positive pole of second diode, described
The negative pole output of the second diode is used as the given output of current/voltage；The tertiary voltage follows the input of circuit as electricity
The given input of stream, its output end follows electricity as given value of current output end, negative pole and the tertiary voltage of first diode
The output end on road is connected, and its positive pole is connected with the negative pole of second diode.
Wherein, the given value of current input and the given input of voltage are connected to the defeated of the control signal receiving circuit
Go out end, the anti-phase scaling circuit is used for anti-phase amplification voltage, and the first voltage follows circuit, second voltage to follow electricity
Road and tertiary voltage follow circuit to be used to realize that output voltage follows the input voltage, the first diode and the second diode to be used for
Limitation output voltage size.
Wherein, first voltage follows circuit, second voltage to follow circuit and tertiary voltage to follow the setting of circuit to improve
Input impedance, reduces influence of the input nonlinearities signal to exporting, meanwhile, tertiary voltage is following circuit and the first diode composition just
To clamp supply, voltage is adjustable from 0V to+V, when the tertiary voltage follows the output end of the four-operational amplifier of circuit defeated
It is due to the effect of diode forward conducting, the positive axis of voltage signal square wave is spacing defeated at this when going out voltage between 0V to+V
Go out the setting voltage at end, and do not influence the size of the negative semiaxis peak value of square wave, so as to adjust the size of square wave positive axis peak value；It is described
Second voltage follows circuit and the second diode composition back clamping power supply, and voltage is adjustable from-V to 0V, when the second voltage
Follow circuit the 3rd operational amplifier output end output voltage between-V to 0V when, due to diode forward conduction make
With, positive axis peak value size is not influenceed the spacing setting voltage in the output end of the negative semiaxis of voltage signal square wave and, so that
The size of the negative semiaxis peak value of regulation square wave, so as to realize that communication control system directly provides variable voltage source control given output electricity
Stream, magnitude of voltage.
With reference to the anti-phase amplification voltage that the anti-phase scaling circuit is realized, the whole current/voltage given circuit
The limitation with potentiometer control input voltage in original welding equipment is effectively overcome, by mechanical arm/automatic jig control letter
Number 2 road 0V to 10V analog voltage signal match into the welding equipment of different manufacturers needed for output control electric current, voltage
Value, while controlling welding machine output current, magnitude of voltage, realizes the comprehensive communication of welding equipment and mechanical arm/automatic jig.
Wherein, for single wire control electric current, voltage give, the given output of current/voltage of the communication control system
The given control line of connecting welding equipment is held, the electric current, voltage for bilinear con- trol give, then the electricity of the communication control system
Flow and give the set output terminal given input of given value of current input corresponding with welding equipment, voltage respectively to set output terminal, voltage
Connection.Wherein, for single wire control electric current, voltage give, the side's of being provided with wave generation circuit inside welding equipment, and just the half of square wave
The electric current regulation of axle amplitude control welding equipment, the voltage of the voltage swing control welding equipment of the negative semiaxis amplitude of square wave is adjusted
Section, and the variable clamper source of positive and negative semiaxis amplitude voltage is formed in current/voltage given circuit in the working control circuit,
Regulation output current, the function of voltage swing can be played by the limitation to the positive and negative semiaxis amplitude of square wave, so as to adjust welding set
Standby output current and output voltage.
Its further technical scheme is：The current/voltage given circuit also includes bi-directional voltage stabilizing clamp circuit, described double
It is used for protection circuit to voltage stabilizing clamp circuit, it includes the first voltage-stabiliser tube and the second voltage-stabiliser tube, the positive pole of first voltage-stabiliser tube
Negative pole with the second diode is connected, and its negative pole is connected with the negative pole of the second voltage-stabiliser tube, the plus earth of second voltage-stabiliser tube.
Its further technical scheme is：The anti-phase scaling circuit includes the first operational amplifier, the 4th resistance, the
Six resistance, the 8th resistance, the 5th electric capacity, the 7th electric capacity, the 8th electric capacity and the 9th electric capacity, one end of the 4th resistance are connected to
First voltage follows the output end of circuit, and its other end is connected with one end of the 8th resistance, the other end of the 8th resistance
Output end with the first operational amplifier is connected, the 9th electric capacity and the 8th resistor coupled in parallel, a termination of the 7th electric capacity
Ground, its other end is connected to the 4th resistance and first voltage is followed between the output end of circuit, a termination of the 6th resistance
Ground, the other end is connected with the in-phase input end of operational amplifier, and the inverting input of first operational amplifier is connected to the
Between four resistance and the 8th resistance, its output end is connected to the input that second voltage follows circuit, first operational amplifier
Negative power end be connected with negative supply, its positive power source terminal is connected with positive supply, and one end of the 5th electric capacity is connected to negative supply
And first operational amplifier negative power end between, its other end ground connection, the 8th electric capacity one end ground connection, the 8th electric capacity
The other end be connected between the positive power source terminal of positive supply and the first operational amplifier.
Wherein, the 5th electric capacity, the 7th electric capacity, the 8th electric capacity and the 9th capacitance on circuit strobe, and reduce interference letter
Influence number to circuit, the 6th resistance is balance resistance, and the 4th resistance is input resistance, and the 8th resistance is feedback resistance.
Its further technical scheme is：The first voltage follow circuit include the 7th resistance and the second operational amplifier,
The in-phase input end of second operational amplifier is connected with one end of the 7th resistance, the anti-phase input of second operational amplifier
End is connected with its output end, and the output end is connected to the input of the anti-phase scaling circuit, the other end of the 7th resistance
It is connected with the given input of voltage.
Its further technical scheme is：The second voltage follow circuit include the 5th resistance, the 3rd diode and the 3rd
Operational amplifier, one end of the 5th resistance is connected with the output end of the anti-phase scaling circuit, its other end and
The in-phase input end of three operational amplifiers is connected, and the inverting input of the 3rd operational amplifier is connected with its output end, and this is defeated
Go out end to be connected with the positive pole of the second diode, the negative pole of the 3rd diode is grounded, its positive pole is connected to the 5th resistance and the
Between the in-phase input end of three operational amplifiers.Wherein, the 3rd diode is used to protect second voltage to follow circuit interference-free,
The input signal for ensuring the in-phase input end of the 3rd operational amplifier is reverse voltage signal.
Its further technical scheme is：The tertiary voltage follow circuit include second resistance and four-operational amplifier,
One end of the second resistance is connected with given value of current input, the in-phase input end phase of its other end and four-operational amplifier
Even, the inverting input of the four-operational amplifier is connected with its output end, and the output end is connected with the negative pole of the first diode.
Its further technical scheme is：The tertiary voltage follows the output of the four-operational amplifier of circuit to be terminated with one
The 4th electric capacity of ground connection, the tertiary voltage is held to follow and be connected with one end between the second resistance in circuit and given value of current input
3rd electric capacity of ground connection, second voltage follows the output of the 3rd operational amplifier of circuit to be terminated with the 6th electricity of one end ground connection
Hold.Wherein, the 4th electric capacity and the 6th electric capacity play filtering and energy storage, and the 3rd electric capacity strobes, to reduce input nonlinearities
Influence of the signal to exporting.
Its further technical scheme is：The signal acquisition circuit includes current sensor and voltage sensor, wherein, institute
State current sensor is used to gather the defeated of welding equipment for gathering the output current signal of welding equipment, the voltage sensor
Go out voltage signal.
Its further technical scheme is：The signal feedback circuit includes starting the arc decision circuitry and floating voltage auxiliary electricity
Road, wherein, the starting the arc decision circuitry is electrically connected with the current sensor, defeated for what is collected according to current sensor
Go out current signal judge welding equipment whether the starting the arc, the floating voltage auxiliary circuit electrically connects with the voltage sensor, uses
In the output voltage signal collected according to voltage sensor judge welding equipment whether short circuit or haircuts, the result after judgement
Feed back to mechanical arm/automatic jig.Wherein, the setting of floating voltage auxiliary circuit causes welding equipment in welding machine zero load shape
Under state, a fixed DC voltage, system circulation detection output voltage, when the voltage that signal acquisition circuit is collected is low are exported
In short circuit, the typical set value of haircuts voltage, then it is judged as welding equipment output short-circuit or haircuts and feeds back coherent signal to machine
Tool arm/automatic jig.
Its further technical scheme is：The power-supply system is included for being adopted to the working control circuit and the signal
AC-DC power circuits that collector is powered and for being powered to the control signal receiving circuit and the signal feedback circuit
DC-DC power source circuit, wherein, AC-DC circuits are responsible for being provided with welding equipment connecting portion sub-control circuit to communication control system
Power supply, DC-DC circuit is responsible for communication control system with mechanical arm/automatic chemical industry using 6kV Magnetic isolations (high frequency transformer)
Dress control circuit provides power supply.
Wherein, welding equipment part continues to use original interface, only by the HF switch of welding equipment/power frequency accessory power supply
Drawn with wire, be powered to the communication control system, it is ensured that the control loop of welding equipment is with communication control system common-battery source
Ground, with it is cost-effective and reduce communication control system complexity, while reduce interference, be effectively ensured system stability,
Reliability.Meanwhile, communication control system is connected with welding equipment and mechanical arm/automatic jig respectively, communication control system
In individually designed DC-DC power source circuit, realize isolating for welding equipment and mechanical arm/automatic jig control signal, prevent
Mechanical arm is interfered with each other with the source of welding current.
The utility model beneficial effect compared with prior art is：Compatibility of the present utility model is based on analog interface
The communication control system of welding equipment, realizes matching the control signal of mechanical arm/automatic jig the welding of different manufacturers
Equipment simultaneously controls welding machine output current, the size of magnitude of voltage, realizes the mechanical arm/automatic jig without common control signal
It is compatible between welding equipment, can realize that analog communication can realize digitized communication again, while by welding current, magnitude of voltage
Feed back to mechanical arm/automatic jig so that on the basis of without changing original welding equipment control circuit and communication interface,
The comprehensive communication of welding equipment and mechanical arm/automatic jig is realized, without additional designs communication interface, low cost, profit
Made the transition in enterprise automation and manufactured, it is wide using scope.
By following description and with reference to accompanying drawing, the utility model will become more fully apparent, and these accompanying drawings are used to explain this
The embodiment of utility model.
Brief description of the drawings
Fig. 1 is the system block diagram of the communication control system of the compatible welding equipment based on analog interface of the utility model.
Fig. 2 is compatible shown in Fig. 1 being based in the working control circuit of the communication control system of the welding equipment of analog interface
Current/voltage given circuit circuit theory diagrams.
Fig. 3 be the signal acquisition circuit of the communication control system of the compatible welding equipment based on analog interface shown in Fig. 1 and
The frame principle figure of one specific embodiment of signal feedback circuit.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in embodiment is carried out clear, complete
Ground description, the reference numerals being similar in accompanying drawing represent similar component.Obviously, embodiment explained below is only this practicality
New a part of embodiment, rather than whole embodiments.Based on the embodiment in the utility model, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the model of the utility model protection
Enclose.
First, reference picture 1, the compatibility that the utility model is provided is based on the communication control system of the welding equipment of analog interface
100 include that power-supply system 10, control signal receiving circuit 20, working control circuit 30, signal acquisition circuit 40 and signal are anti-
Current feed circuit 50.
Wherein, power-supply system 10 is used to provide power supply for each circuit module in communication control system 100；Control signal
Receiving circuit 20 is used to receive the digital controlled signal that mechanical arm/automatic jig sends welding equipment, and by the numeral
Control signal is converted into corresponding analog signal；Working control circuit 30 is used for the simulation letter from control signal receiving circuit
Signal that welding equipment can recognize number is matched into control welding equipment to realize corresponding operating, realizes that the different welding of matching set
The standby analog communication with mechanical arm；Signal acquisition circuit 40 is used to gather the output current and output voltage signal of welding equipment
And it is fed directly to the mechanical arm/automatic jig；Signal feedback circuit 50 is used for according to the signal acquisition circuit 40
The output current and output voltage signal of collection feed back to the mechanical arm/automatic jig after carrying out abnormal judgement.
In some embodiments, such as the present embodiment, the working control circuit 30 includes current/voltage given circuit,
The current/voltage given circuit is used for the given reference voltage level according to the signal from control signal receiving circuit 20 and extremely welds
Equipment is connect, to ensure that welding equipment output voltage is consistent with given voltage.
Wherein, current/voltage given circuit gives a reference voltage to welding equipment, by the reality with welding equipment
Voltage output value is made comparisons, and ensures that welding equipment output voltage is given with current/voltage by the PID arithmetic circuit in welding equipment
The setting value for determining circuit is consistent, realizes without again using new welding equipment or for different welding equipment individually designed
Match different welding equipments by planting Communication Control plate to be communicated with plant equipment simulation, realization is to output current, voltage
The regulation of size.Meanwhile, the working control circuit 30 also includes being controlled according to the control signal of mechanical arm/automatic jig
Work start of the movable contact closure of relay to control welding equipment to carry out to start to weld, open the work such as air valve, wire feed is electric
Road, gas inspection circuit and silk inspection circuit.
With reference to Fig. 2, in some embodiments, such as the present embodiment, the current/voltage given circuit includes anti-phase ratio
Amplifying circuit 311, first voltage follows circuit 312, second voltage to follow circuit 313, tertiary voltage to follow circuit 314, first
Diode V1 and the second diode V2.
Wherein, the first voltage follows the input of circuit 312 as the given input D of voltage, the connection of its output end
To the anti-phase scaling circuit 311 input and as voltage give set output terminal C simultaneously；The second voltage follows electricity
The input on road 313 is connected with the output end of the anti-phase scaling circuit 311, its output end and the second diode V2
Positive pole be connected, the negative pole of the second diode V2 is exported gives set output terminal B as current/voltage；The tertiary voltage with
With the input of circuit 314 as given value of current input E, its output end is used as given value of current output terminals A, the one or two pole
The negative pole of pipe V1 follows the output end of circuit 314 to be connected with tertiary voltage, the negative pole phase of its positive pole and the second diode V2
Even.
Wherein, the given value of current input E and the given input D of voltage are connected to the defeated of the control signal circuit 20
Go out end, the anti-phase scaling circuit 311 is used for anti-phase amplification voltage, and the first voltage follows circuit 312, second voltage
Follow circuit 313 and tertiary voltage to follow circuit 314 to be used to realize that output voltage follows input voltage, then output voltage with it is defeated
Enter voltage equal；First diode V1 and the second diode V2 is used to limit output voltage size.
Wherein, first voltage follows circuit 312, second voltage to follow circuit 313 and tertiary voltage to follow setting for circuit 314
It is to improve input impedance to put, and reduce input nonlinearities signal influences on output end, meanwhile, tertiary voltage follows circuit 314 and the
One diode V1 constitutes positive clamping power supply, and voltage is adjustable from 0V to+V, when the tertiary voltage follows the 4th fortune of circuit 314
When calculating the output end output voltage of amplifier U1D between 0V to+V, due to the effect of diode forward conducting, voltage signal side
The spacing setting voltage in the output end of positive axis of ripple, and the size of the negative semiaxis peak value of square wave is not influenceed；The second voltage
The diode V2 of circuit 313 and second is followed to constitute back clamping power supply, voltage is adjustable from-V to 0V, when the second voltage is followed
When the output end output voltage of the 3rd operational amplifier U1C of circuit 313 is between-V to 0V, because the forward conduction of diode is made
With, positive axis peak value size is not influenceed the spacing setting voltage in the output end of the negative semiaxis of voltage signal square wave and, so that
The size of the negative semiaxis peak value of regulation square wave, so as to realize that communication control system directly provides variable voltage source control given output electricity
Stream, magnitude of voltage, so as to adjust welding equipment output current, the size of voltage, realize the welding equipment and machine of matching different manufacturers
Tool arm is communicated.
With reference to the anti-phase amplification voltage that the anti-phase scaling circuit 311 is realized, the whole given electricity of the current/voltage
Road effectively overcomes the limitation with potentiometer control input voltage in original welding equipment, by mechanical arm/automatic jig control
The analog voltage signal of 2 road 0V to 10V of signal match into the welding equipment of different manufacturers needed for control electric current, magnitude of voltage,
Welding machine output current, magnitude of voltage are controlled simultaneously, realize the comprehensive communication of welding equipment and mechanical arm/automatic jig.
Wherein, for single wire control electric current, voltage give, the given output of current/voltage of the communication control system
The given control line of B connecting welding equipment, electric current, voltage for bilinear con- trol is held to give, then the communication control system
Given value of current output terminals A, voltage to set output terminal C respectively given value of current input corresponding with welding equipment, voltage give it is defeated
Enter end connection.Wherein, for single wire control electric current, voltage give, the side's of being provided with wave generation circuit inside welding equipment, square wave
Positive axis replicates the electric current regulation of control welding equipment, and the voltage swing of the negative semiaxis amplitude of square wave controls the voltage of welding equipment
Regulation, and form the variable clamper of positive and negative semiaxis amplitude voltage in current/voltage given circuit in the working control circuit
Power supply, can play regulation output current, the function of voltage swing, so as to adjust weldering by the limitation to the positive and negative semiaxis amplitude of square wave
Connect the output current and output voltage of equipment.
With continued reference to Fig. 2, in some embodiments, such as the present embodiment, the current/voltage given circuit also includes double
To voltage stabilizing clamp circuit 315, the bi-directional voltage stabilizing clamp circuit 315 is used for protection circuit, and it includes the first voltage-stabiliser tube Z1 and the
Two voltage-stabiliser tube Z2, the positive pole of the first voltage-stabiliser tube Z1 is connected with the negative pole of the second diode V2, its negative pole and the second voltage-stabiliser tube
The negative pole of Z2 is connected, the plus earth of the second voltage-stabiliser tube Z2.
In some embodiments, such as the present embodiment, the anti-phase scaling circuit 311 includes the first operational amplifier
U1A, the 4th resistance R4, the 6th resistance R6, the 8th resistance R8, the 5th electric capacity C5, the 7th electric capacity C7, the electricity of the 8th electric capacity C8 and the 9th
Hold C9, one end of the 4th resistance R4 is connected to the output end that first voltage follows circuit 312, its other end and the described 8th
One end of resistance R8 is connected, and the other end of the 8th resistance R8 is connected with the output end of the first operational amplifier U1A, and the described 9th
Electric capacity C9 is in parallel with the 8th resistance R8, one end of the 7th electric capacity C7 ground connection, and its other end is connected to the 4th resistance R4 and the
Between the output end of one voltage follower circuit 312, one end of the 6th resistance R6 ground connection, the other end and the first operational amplifier
The in-phase input end of U1A is connected, and the inverting input of the first operational amplifier U1A is connected to the electricity of the 4th resistance R4 and the 8th
Between resistance R8, its output end is connected to second voltage and follows the output end of circuit 313, the negative supply of first operational amplifier U1A
End is connected with negative supply, and its positive power source terminal is connected with positive supply, and one end of the 5th electric capacity C5 is connected to negative supply and first
Between the negative power end of operational amplifier U1A, its other end ground connection, one end ground connection of the 8th electric capacity C8, the 8th electric capacity
The other end of C8 is connected between the positive power source terminal of positive supply and the first operational amplifier U1A.
Wherein, the 5th electric capacity C5, the 7th electric capacity C7, the 8th electric capacity C8 and the 9th electric capacity C9 strobe to circuit, subtract
Influence of the small interference signal to circuit, the 6th resistance R6 is balance resistance, and the 4th resistance R4 is input resistance, and the 8th resistance R8 is
Feedback resistance.
In some embodiments, such as the present embodiment, the first voltage follows the circuit 312 to include the 7th resistance R7 grades the
Two operational amplifier U1B, the in-phase input end of the second operational amplifier U1B is connected with one end of the 7th resistance R7, and this
The inverting input of two operational amplifier U1B is connected with its output end, and the output end is connected to the anti-phase scaling circuit
311 input, the other end input D given with voltage of the 7th resistance R7 is connected.
The second voltage follow circuit 313 include the 5th resistance R5, the 3rd diode V3 and the 3rd operational amplifier
U1C, one end of the 5th resistance R5 is connected with the output end of the anti-phase scaling circuit 311, its other end and the 3rd
The in-phase input end of operational amplifier U1C is connected, and the inverting input of the 3rd operational amplifier U1C is connected with its output end,
The output end is connected with the positive pole of the second diode V2, and the negative pole ground connection of the 3rd diode V3, its positive pole is connected to the 5th
Between the in-phase input end of resistance R5 and the 3rd operational amplifier U1C.Wherein, the 3rd diode V3 be used for protect second voltage with
It is interference-free with circuit 313, it is ensured that the input signal of the in-phase input end of the 3rd operational amplifier U1C is reverse voltage signal.
The tertiary voltage follow circuit 314 include second resistance R2 and four-operational amplifier U1D, the second resistance
One end of R2 is connected with given value of current input E, and its other end is connected with the in-phase input end of four-operational amplifier U1D, should
The inverting input of four-operational amplifier U1D is connected with its output end, and the output end is connected with the negative pole of the first diode V1.
In some embodiments, such as the present embodiment, the tertiary voltage follows the four-operational amplifier of circuit 314
The output of U1D is terminated with the 4th electric capacity C4 of one end ground connection, the tertiary voltage follow in circuit 314 second resistance R2 and electric current to
Determine to be connected with the 3rd electric capacity C3 that one end is grounded between input, second voltage follows the 3rd operational amplifier U1C of circuit 313
Output be terminated with one end ground connection the 6th electric capacity C6.Wherein, the 4th electric capacity C4 and the 6th electric capacity C6 play filtering and energy storage,
3rd electric capacity C3 strobes, to reduce influence of the input nonlinearities signal to exporting.
Reference picture 3, the signal acquisition circuit 40 includes that the electric current of the output current signal for gathering welding equipment is passed
Sensor 401 and the voltage sensor 402 for gathering the output voltage signal of welding equipment.
The signal feedback circuit 50 includes starting the arc decision circuitry 501 and floating voltage auxiliary circuit 502, wherein, it is described
Starting the arc decision circuitry 501 is electrically connected with the current sensor 401, for the output current collected according to current sensor
Signal judge welding equipment whether the starting the arc, the floating voltage auxiliary circuit 502 electrically connects with the voltage sensor 402, uses
In the output voltage signal collected according to voltage sensor 402 judge welding equipment whether short circuit or haircuts, after judgement
Result feeds back to mechanical arm/automatic jig.
Wherein, the setting of floating voltage auxiliary circuit 502 causes welding equipment under welding machine Light Condition, exports one admittedly
Fixed DC voltage, system circulation detection output voltage, when the voltage that signal acquisition circuit 40 is collected is electric less than short circuit, haircuts
The typical set value of pressure, then be judged as welding equipment output short-circuit or haircuts, and feed back coherent signal to mechanical arm/automation
Frock.
Fig. 1 is referred again to, the power-supply system includes being used for supplying the working control circuit and the signal acquisition circuit
The AC-DC power circuits of electricity and the DC-DC electricity for being powered to the control signal receiving circuit and the signal feedback circuit
Source circuit, wherein, AC-DC circuits are responsible for providing power supply, DC- with welding equipment connecting portion sub-control circuit to communication control system
DC circuits are responsible for communication control system with mechanical arm/automatic jig control electricity using 6kV Magnetic isolations (high frequency transformer)
Road provides power supply.
Wherein, welding equipment part continues to use original interface, only by the HF switch of welding equipment/power frequency accessory power supply
Drawn with wire, be powered to the communication control system, it is ensured that the control loop of welding equipment is with communication control system common-battery source
Ground, with it is cost-effective and reduce communication control system complexity, while reduce interference, be effectively ensured system stability,
Reliability.Meanwhile, communication control system is connected with welding equipment and mechanical arm respectively, individually designed in communication control system
DC-DC power source circuit, realizes isolating for welding equipment and mechanical arm/automatic jig control signal, prevent mechanical arm with
The source of welding current is interfered with each other.
In sum, the communication control system of the compatible welding equipment based on analog interface provided by the utility model,
The variable clamp supply of positive and negative semiaxis amplitude voltage is formed by the current/voltage given circuit in working control circuit, is passed through
To the limitation of the positive and negative semiaxis amplitude of square wave so as to adjust given output current, the size of voltage so that given output current, voltage
Value is matched with the electric current needed for welding equipment output control, magnitude of voltage, while welding machine output current, the size of magnitude of voltage are controlled,
The mechanical arm without common control signal/compatible between automatic jig and welding equipment is realized, can realize that simulation is logical
News can realize digitized communication again, while welding current, magnitude of voltage are returned into mechanical arm/automatic jig in proportion, lead to
Cross signal feedback circuit and receive the job information for judging welding equipment so that without changing original welding equipment control circuit and leading to
On the basis of communication interface, directly output current, the voltage of welding equipment are adjusted using the working control circuit of communication control system
Value, realizes the comprehensive communication of welding equipment and mechanical arm/automatic jig, without additional designs communication interface, low cost,
Made the transition beneficial to enterprise automation and manufactured, it is wide using scope.
The utility model is described above in association with most preferred embodiment, but the utility model is not limited to the above and takes off
The embodiment shown, and various modification, the equivalent combinations carried out according to essence of the present utility model should be covered.
Claims (10)
1. compatibility is based on the communication control system of the welding equipment of analog interface, and the communication control system is used to realize manipulator
The communication of arm/between automatic jig and welding equipment, it is characterised in that including：
Control signal receiving circuit, for receiving the digital controlled signal that mechanical arm/automatic jig sends to welding equipment,
And the digital controlled signal is converted into corresponding analog signal；
Working control circuit, for the analog signal from control signal receiving circuit to be matched into what welding equipment can be recognized
Signal realizes corresponding operating to control welding equipment；
Signal acquisition circuit, for gathering the output current and output voltage signal of welding equipment and being fed directly to the machinery
Arm/automatic jig；
Signal feedback circuit, for carrying out abnormal judgement according to the output current and output voltage signal after feed back to the machine
Tool arm/automatic jig；
Power-supply system, power supply is provided for each circuit module for communication control system.
2. compatibility as claimed in claim 1 is based on the communication control system of the welding equipment of analog interface, it is characterised in that institute
Stating working control circuit includes current/voltage given circuit, is given for signal of the basis from control signal receiving circuit
Reference voltage level to welding equipment, to ensure that welding equipment output voltage is consistent with given voltage.
3. compatibility as claimed in claim 2 is based on the communication control system of the welding equipment of analog interface, it is characterised in that institute
State current/voltage given circuit follows circuit, second voltage to follow circuit, the including anti-phase scaling circuit, first voltage
Three voltage follower circuits, the first diode and the second diode, wherein,
The first voltage follows the input of circuit to give input as voltage, and its output end is connected to the anti-phase ratio
The input of amplifying circuit and simultaneously as voltage to set output terminal；
The second voltage follows the input of circuit to be connected with the output end of the anti-phase scaling circuit, its output end with
The positive pole of second diode is connected, and the negative pole of second diode is exported as current/voltage to set output terminal；
The tertiary voltage follows the input of circuit as given value of current input, and its output end is exported as given value of current
End, negative pole and the tertiary voltage of first diode follow the output end of circuit to be connected, its positive pole and second diode
Negative pole be connected.
4. compatibility as claimed in claim 3 is based on the communication control system of the welding equipment of analog interface, it is characterised in that institute
State current/voltage given circuit also include bi-directional voltage stabilizing clamp circuit, the bi-directional voltage stabilizing clamp circuit include the first voltage-stabiliser tube and
Second voltage-stabiliser tube, the positive pole of first voltage-stabiliser tube is connected with the negative pole of the second diode, its negative pole and the second voltage-stabiliser tube it is negative
Extremely it is connected, the plus earth of second voltage-stabiliser tube.
5. compatibility as claimed in claim 3 is based on the communication control system of the welding equipment of analog interface, it is characterised in that institute
Stating anti-phase scaling circuit includes the first operational amplifier, the 4th resistance, the 6th resistance, the 8th resistance, the 5th electric capacity, the 7th
Electric capacity, the 8th electric capacity and the 9th electric capacity, one end of the 4th resistance are connected to the output end that first voltage follows circuit, and its is another
One end is connected with one end of the 8th resistance, and the other end of the 8th resistance is connected with the output end of the first operational amplifier,
9th electric capacity and the 8th resistor coupled in parallel, one end ground connection of the 7th electric capacity, its other end are connected to the 4th resistance and the
Between the output end of one voltage follower circuit, one end of the 6th resistance ground connection, its other end and the first operational amplifier
In-phase input end is connected, and the inverting input of first operational amplifier is connected between the 4th resistance and the 8th resistance, its
Output end is connected to the input that second voltage follows circuit, and the negative power end of first operational amplifier is connected with negative supply,
Its positive power source terminal is connected with positive supply, and one end of the 5th electric capacity is connected to the negative supply of negative supply and the first operational amplifier
Between end, its other end ground connection, one end ground connection of the 8th electric capacity, the other end of the 8th electric capacity is connected to positive supply and the
Between the positive power source terminal of one operational amplifier.
6. compatibility as claimed in claim 3 is based on the communication control system of the welding equipment of analog interface, it is characterised in that institute
State first voltage follow circuit include the 7th resistance and the second operational amplifier, the in-phase input end of second operational amplifier
One end with the 7th resistance is connected, and the inverting input of second operational amplifier is connected with its output end, output end connection
To the input of the anti-phase scaling circuit, the other end of the 7th resistance is connected with the given input of voltage；
The second voltage follow circuit include the 5th resistance, the 3rd diode and the 3rd operational amplifier, the 5th resistance
One end be connected with the output end of the anti-phase scaling circuit, the in-phase input end of its other end and the 3rd operational amplifier
It is connected, the inverting input of the 3rd operational amplifier is connected with its output end, the positive pole phase of the output end and the second diode
Even, the negative pole ground connection of the 3rd diode, its positive pole is connected to the in-phase input end of the 5th resistance and the 3rd operational amplifier
Between；
The tertiary voltage follows the circuit to include second resistance and four-operational amplifier, one end of the second resistance and electric current
Given input is connected, and its other end is connected with the in-phase input end of four-operational amplifier, the four-operational amplifier it is anti-
Phase input is connected with its output end, and the output end is connected with the negative pole of the first diode.
7. compatibility as claimed in claim 6 is based on the communication control system of the welding equipment of analog interface, it is characterised in that institute
State tertiary voltage follow the output of the four-operational amplifier of circuit be terminated with one end ground connection the 4th electric capacity, the tertiary voltage with
With the 3rd electric capacity that one end ground connection is connected between second resistance in circuit and given value of current input, second voltage follows circuit
The 3rd operational amplifier output be terminated with one end ground connection the 6th electric capacity.
8. compatibility as claimed in claim 1 is based on the communication control system of the welding equipment of analog interface, it is characterised in that institute
Stating signal acquisition circuit includes：
Current sensor, the output current signal for gathering welding equipment；And
Voltage sensor, the output voltage signal for gathering welding equipment.
9. compatibility as claimed in claim 8 is based on the communication control system of the welding equipment of analog interface, it is characterised in that institute
Stating signal feedback circuit includes：
Starting the arc decision circuitry, the output current signal for being collected according to current sensor judges whether the starting the arc；And
Whether floating voltage auxiliary circuit, the output voltage signal for being collected according to voltage sensor judges welding equipment
Short circuit or haircuts.
10. the compatibility as described in claim any one of 1-9 is based on the communication control system of the welding equipment of analog interface, and it is special
Levy and be, the power-supply system includes：
AC-DC power circuits, for being powered to the working control circuit and the signal acquisition circuit；And
DC-DC power source circuit, for being powered to the control signal receiving circuit and the signal feedback circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621263572.XU CN206253790U (en) | 2016-11-22 | 2016-11-22 | The communication control system of welding equipment of the compatibility based on analog interface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621263572.XU CN206253790U (en) | 2016-11-22 | 2016-11-22 | The communication control system of welding equipment of the compatibility based on analog interface |
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| Publication Number | Publication Date |
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| CN206253790U true CN206253790U (en) | 2017-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621263572.XU Expired - Fee Related CN206253790U (en) | 2016-11-22 | 2016-11-22 | The communication control system of welding equipment of the compatibility based on analog interface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378513A (en) * | 2016-11-22 | 2017-02-08 | 深圳华意隆电气股份有限公司 | Communication control system compatible with welding device based on analog interface |
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2016
- 2016-11-22 CN CN201621263572.XU patent/CN206253790U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378513A (en) * | 2016-11-22 | 2017-02-08 | 深圳华意隆电气股份有限公司 | Communication control system compatible with welding device based on analog interface |
| CN106378513B (en) * | 2016-11-22 | 2018-07-17 | 深圳华意隆电气股份有限公司 | The communication control system of the compatible welding equipment based on analog interface |
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