CN106077894B - It is a kind of with trap without control line carrier wave plasma cutting inverter control system - Google Patents
It is a kind of with trap without control line carrier wave plasma cutting inverter control system Download PDFInfo
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- CN106077894B CN106077894B CN201610504273.9A CN201610504273A CN106077894B CN 106077894 B CN106077894 B CN 106077894B CN 201610504273 A CN201610504273 A CN 201610504273A CN 106077894 B CN106077894 B CN 106077894B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
- B23K9/1012—Power supply characterised by parts of the process
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
The invention discloses it is a kind of with trap without control line carrier wave plasma cutting inverter control system, including Arc Welding Power, wire-feed motor, welding gun and welding cable, the Arc Welding Power passes through welding cable and wire feed mechatronics, the wire-feed motor is electrically connected by welding cable with welding gun, and welding wire is sent into welding torch position；The Arc Welding Power includes inversion circuit, the first trap and the first control panel, and first trap is electrically connected with inversion circuit, and first trap is electrically connected with the first control panel；The second trap and the second control panel are provided with the wire-feed motor, second trap is electrically connected with the second control panel；Second trap is electrically connected in series with the welding gun, it is ensured that carrier wave welding machine is in standby and working condition, and wire-feed motor can be communicated reliably by both positive and negative polarity welding cable line in real time with welding machine parameter.
Description
Technical field
The invention belongs to the technical field of the welding machine of carrier Control, more particularly to it is a kind of with trap without control line carrier wave
Plasma cutting inverter control system.
Background technology
With China's the constant growth of productivity, it is necessary to a large amount of in modernization industry production, especially heavy industry production
Use welding machine.50 meters of welding occasion, carrier wave weldering are typically greater than in the welding cable length such as extra large work, shipyard, large-scale steel structure
Machine is carrier loop positive pole, welding machine electrode cable due to without seven core control lines, being changed to by a carrier wire in special tracheae
Line is carrier loop negative pole, and carrier wire is both powered as power line to wire-feed motor, and ensures wire-feed motor and welding machine as carrier wire
Communication, this mode is substantially reduced because seven core control lines are pounded the fault rate that disconnected or short circuit band comes, and alleviates control
The weight of line processed, convenient construction；But the failure of carrier wire short circuit or open circuit still can not be avoided in actual applications, made to user
Loss on into efficiency and in benefit.
Wireless carrier welding machine is in welding, and cable transmits signal both as the carrier of welding current as carrier wire
Carrier, the being disturbed property of carrier signal greatly, and welding machine reverse frequency be loaded into again in cable, welding the droplet transfer or
Carrier signal is easier to be interfered when unloaded.Especially in the welding conditions of short circuiting transfer, it is impossible to ensure carrier signal just
Really transmission.
Prior art can be when welding machine be standby, and wire-feed motor parameter can be transferred to welding machine, although can realize wire-feed motor
The function that parameter is communicated with welding machine, but welding machine can not be solved in welding, the nonadjustable problem of wire-feed motor welding parameter can not
Solve the real-time Transmission of the signals such as arc welding gun switch, and complex operation.Ensure carrier wave welding machine in standby and working condition, wire feed
Machine is communicated by both positive and negative polarity welding cable line in real time with the reliable of welding machine parameter, still belongs to blank in current welding machine field.
The content of the invention
The present invention controls system with trap there is provided a kind of in order to solve the above problems without control line carrier wave plasma cutting inverter
System, carrier signal is transmitted by the both positive and negative polarity welding cable line of welding machine, and this system ensure that carrier wave welding machine in standby and work shape
During state, the real-time communication of wire-feed motor and welding machine.
To achieve these goals, the present invention is adopted the following technical scheme that：
It is a kind of with trap without control line carrier wave plasma cutting inverter control system, including Arc Welding Power, wire-feed motor, welding gun
With welding cable, the Arc Welding Power passes through welding cable and weldering by welding cable and wire feed mechatronics, the wire-feed motor
Rifle is electrically connected, and welding wire is sent into welding torch position；The Arc Welding Power includes inversion circuit, the first trap and the first control panel,
First trap is electrically connected with inversion circuit, and first trap is electrically connected with the first control panel；In the wire-feed motor
The second trap and the second control panel are provided with, second trap is electrically connected with the second control panel；Second trap
It is electrically connected in series with the welding gun.
First control panel is electrically connected with first switch power module, and the first switch power module is described first
Control panel provides power supply, and first control panel includes：First MCU micro-control units, carrier wave demodulation module, carrier wave overcurrent protection
Module, communication module, Arc Welding Power display module and PI proportional plus integral control modules.The carrier wave demodulation module and described first
MCU micro-control units are electrically connected, and the first MCU micro-control units are electrically connected with the carrier wave overcurrent protection module, described logical
News module is electrically connected with the first MCU micro-control units, the Arc Welding Power display module and the first MCU microcontroller lists
Member electrical connection, the PI proportional plus integral controls module is electrically connected with the first MCU micro-control units.
Second control panel is electrically connected with second switch power module, and the second switch power module is described second
Control panel provides power supply, and second control panel includes：2nd MCU micro-control units, carrier modulation block, motor, magnetic valve
Control module, switching value sampling module, potentiometer sampling module and wire-feed motor display module, the 2nd MCU micro-control units
Electrically connected with carrier modulation block, the carrier modulation block passes through welding with the carrier wave demodulation module in first control panel
Cable is electrically connected, and the 2nd MCU micro-control units are electrically connected with motor, the 2nd MCU micro-control units and magnetic valve control
Molding block is electrically connected, and the switching value sampling module is electric with the 2nd MCU micro-control units respectively with potentiometer sampling module
Connection, the 2nd MCU micro-control units, the 2nd MCU micro-control units and wire-feed motor display module are transferred to by sampled signal
Electrical connection.
The welding cable is both power line, while being carrier signal line.
The output voltage range of the Arc Welding Power is 12 V -80V.
The Arc Welding Power provides power supply for first control panel.
First control panel is in parallel with the both positive and negative polarity of welding cable, and it is wire feed that first control panel, which provides carrier power source,
Second control panel of machine provides power supply.
First trap is made up of inductance element with capacity cell, is connected on the both positive and negative polarity of inversion circuit output, institute
Inductance element is stated by magnetic material coiling.
Second trap is made up of the inductance element of magnetic material coiling.
Beneficial effects of the present invention：
1st, the welding parameter of the first control panel and the second control panel respectively to wire-feed motor carries out carrier modulation and carrier wave demodulation,
Welding machine is standby and work weld during, can be by the welding parameter of wire-feed motor（Such as weld given voltage value, the given electricity of welding
Flow valuve, arc welding gun switch state and panel parameter etc.）Arc Welding Power is real-time transmitted to, Arc Welding Power is adjusted according to wire-feed motor welding parameter
Whole voltage or electric current output, it is ensured that the stability of welding, while the carrier signal for solving wire-feed motor and Arc Welding Power is led in real time
Query is inscribed.
2nd, the first trap is by the reverse frequency interference filtering of inversion circuit, the droplet transfer pair during the second trap will be welded
The interference filtering of carrier signal, it is ensured that the reliability of the first control panel and the normal carrier communication of the second control panel.
3rd, carrier communication loop is only by the first control panel and the second control panel, and the first control panel provides carrier power source, when
Welding cable is protected when short-circuit by the carrier wave overcurrent protection module in the first control panel, it is ensured that the reliability of system with
Security, it is to avoid the failure of carrier wire short circuit or open circuit, it is to avoid the loss in user efficiency and in benefit.
4th, it is both power line using welding cable, while being carrier signal control line, substantially reduces due to the control of seven cores
Line is pounded the fault rate that disconnected or short circuit band comes, while alleviating the weight of control line, convenient construction.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is the structural representation of the first control panel of the invention and the second control panel；
Fig. 3 is the partial circuit diagram of the first trap of the invention；
Fig. 4 is the carrier modulation block circuit diagram in the second control panel of the invention；
Fig. 5 is the carrier wave demodulation module circuit diagram in the first control panel of the invention；
Wherein, 1- Arc Welding Powers, 2- wire-feed motors, the control panels of 3- first, the traps of 4- first, 5- inversion circuits, 6- second
Control panel, the traps of 7- second, 8- welding cable lines, 9- welding guns, 10- workpiece, 11- first switch power modules, 12- first
MCU micro-control units, 13- carrier wave demodulation modules, 14- carrier wave overcurrent protection modules, 15- communication modules, 16- Arc Welding Powers are shown
Module, 17-PI proportional plus integral control modules, 18- second switch power modules, the MCU micro-control units of 19- the 2nd, 20- carrier waves are adjusted
Molding block, 21- motors, 22- solenoid valve control modules, 23- switching value sampling modules, 24- potentiometer sampling modules, 25- wire feeds
Machine display module.
Embodiment：
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, it is a kind of with trap without control line carrier wave plasma cutting inverter control system, including Arc Welding Power 1,
Wire-feed motor 2, welding gun 9 and welding cable 8, the Arc Welding Power 1 are electrically connected by welding cable 8 with wire-feed motor 2, the wire-feed motor
2 are electrically connected by welding cable 8 with welding gun 9, and welding wire is sent into the position of welding gun 9, workpiece 10 is welded；The welding cable
8 be both power line, while being carrier signal line；The output voltage range of the Arc Welding Power 8 is 12 V -80V.The arc-welding
Power supply 1 includes inversion circuit 5, the first trap 4 and the first control panel 3, and first trap 4 is electrically connected with inversion circuit 5,
First trap 4 is electrically connected with the first control panel 3；The Arc Welding Power 8 is that first control panel 3 provides power supply；Institute
State and the second trap 7 and the second control panel 6 are provided with wire-feed motor 2, second trap 7 is electrically connected with the second control panel 6；
Second trap 7 is electrically connected in series with the welding gun 9.First control panel 3 is in parallel with the both positive and negative polarity of welding cable 8,
First control panel 3 provides carrier power source, is that the second control panel 6 of wire-feed motor 2 provides power supply.
First control panel 3 as shown in Figure 2 and the structural representation of the second control panel 6, first control panel 3 and first
Switch power module 11 is electrically connected, and the first switch power module 11 is that first control panel 3 provides power supply, described first
Control panel 3 includes：First MCU micro-control units 12, carrier wave demodulation module 13, carrier wave overcurrent protection module 14, communication module 15,
Arc Welding Power display module 16 and PI proportional plus integral controls module 17.The carrier wave demodulation module 13 and the first MCU micro-controls
Unit 12 processed is electrically connected, and the carrier signal of reception is demodulated by the carrier wave demodulation module 13 by welding cable 8, will be demodulated
The welding parameter of the wire-feed motor 2 obtained afterwards is transferred to the first MCU micro-control units 12, and the first MCU micro-control units 12 are read
Take the welding parameter of wire-feed motor 2；The first MCU micro-control units 12 are electrically connected with the carrier wave overcurrent protection module 14, institute
The current value in the real-time monitoring welding cable 8 of carrier wave overcurrent protection module 14 is stated, is caused when the failures such as short circuit occurs in welding cable 8
Actual current value exceedes after defined current value, and over-current signal is transferred to the first MCU microcontrollers by carrier wave overcurrent protection module 14
Unit 12, the first MCU micro-control units 12 read over-current signal, and control the chip of excessively stream unit, and it is protected, and cut off
Power supply, until failture evacuation；The communication module 15 is electrically connected with the first MCU micro-control units 12, and communication module 15 makes
First MCU micro-control units 12 are communicated with 422 or the 485 of other peripheral circuits；The Arc Welding Power display module 16 with
The first MCU micro-control units 12 are electrically connected, and show the welding parameter of wire-feed motor 2（Given voltage value, welding is such as welded to give
Current value, arc welding gun switch state and panel parameter etc.）Or welder fault code；The PI proportional plus integral controls module 17 with it is described
First MCU micro-control units 12 are electrically connected, PI proportional plus integral controls module 17 by PI proportional integration computings, by voltage it is given with
Voltage Feedback and given value of current carry out computing with current feedback, and by combining the demodulation that the first MCU micro-control units 12 are sent
The welding parameter of wire-feed motor 2 afterwards, controls voltage or the electric current output of Arc Welding Power 1, it is ensured that the stability of welding.
Second control panel 6 is electrically connected with second switch power module 18, and the second switch power module 18 is institute
State the second control panel 6 and power supply is provided, second control panel 6 includes：2nd MCU micro-control units 19, carrier modulation block 20,
Motor 21, solenoid valve control module 22, switching value sampling module 23, potentiometer sampling module 24 and wire-feed motor display module 25,
The 2nd MCU micro-control units 19 are electrically connected with carrier modulation block 20, the carrier modulation block 20 and the described first control
Carrier wave demodulation module 13 in making sheet 3 is electrically connected by welding cable 8, and carrier modulation block 20 is by the 2nd MCU micro-control units
The welding parameter of wire-feed motor 2 of 19 detections is modulated according to carrier-wave transmission agreement, and high-frequency signal is coupled into the line of welding cable 8,
The welding parameter of wire-feed motor 2 is transferred to the carrier wave demodulation module 13 of the first control panel 3 by the line of welding cable 8；Described second
MCU micro-control units 19 are electrically connected with motor 21, and the 2nd MCU micro-control units 19 are electrically connected with solenoid valve control module 22
Connect, the switching value sampling module 23 is electrically connected with the 2nd MCU micro-control units 19 respectively with potentiometer sampling module 24,
The sampling arc welding gun switch of switching value sampling module 23 state, the state of panel parameter are carried there is provided welding parameter, potentiometer sampling mould 24
For given voltage, given electric current, receive the parameters such as arc voltage, receipts arc current；Switching value sampling module 23 and potentiometer sampling mould 24
Sampled signal is transferred to the 2nd MCU micro-control units 19 respectively, the 2nd MCU micro-control units 19 are believed according to the sampling received
Number controlled motor 21 and solenoid valve control module 22, motor 21 works as driver element drive magnetic valve, with solenoid valve control
The wire feed and function of supplying gas of the control wire-feed motor of module 22；The 2nd MCU micro-control units 19 and the electricity of wire-feed motor display module 25
Connection, wire-feed motor display module 25 shows the welding parameter of wire-feed motor 2（Such as weld given voltage value, the given current value of welding, weldering
Rifle on off state and panel parameter etc.）Or wire-feed motor failure code.
As shown in figure 3, first trap 4 in Arc Welding Power is made up of inductance element with capacity cell, it is connected on
The both positive and negative polarity that inversion circuit 5 is exported, the inductance element is by magnetic material coiling.First trap 4 is act as：One side
Face prevents reverse frequency from causing larger interference to carrier signal, on the other hand prevents the carrier loop and arc-welding electricity of wire-feed motor 2
The UNICOM of inversion circuit 5 in source 1 causes the interference of carrier signal.It is magnetic material to set the second trap 7 in wire-feed motor 2 simultaneously
The inductance element of coiling, second trap 7 is act as：When the closure of welding gun 9 is welded, on the one hand molten drop has been blocked to exist
The arc current of electric arc is interfered to carrier signal during short-circuit arcing transition, on the other hand prevents molten drop carrier wave electricity in short circuit
Stream enters negative pole by molten drop stream, causes carrier signal to disturb.
The carrier wave demodulation module 13 of the control panel 3 of carrier modulation block 20 and first of second control panel 6 constitutes the load of signal
Ripple Transmission system.The carrier modulation circuit of carrier modulation block 20 as shown in Figure 3, the carrier wave demodulation electricity of carrier wave demodulation module 13
Road is as shown in Figure 4.Carrier modulation circuit input end is controlled by the 2nd MCU micro-control units 19, former according to selective frequency amplifier circuit
Reason, the carrier signal that welding parameter is modulated is coupled into welding cable 8.Electric capacity C1, the transformer TB1 of first control panel 3 enter
The coupling sampling of row carrier signal；Carrier signal is passed through into general phase-locked loop circuit tone decoder（Such as LM567）And logic
Circuit is demodulated, the detected carrier signal of the first MCU micro-control units 12, by corresponding agreement, demodulates the weldering of transmission
Connect parameter.Under normal condition, the first MCU micro-control units 12 control IGCT KF1 and IGCT KF2 conducting, IGCT KF1 and
AC power rectification is direct-current power supply wire-feed motor by IGCT KF2, while dc source is used as carrier loop.First MCU
Micro-control unit 12 detects the current value on welding cable 8 by current sensor and peripheral circuit, when welding cable 8 occurred
During stream, the first MCU micro-control units 12 detection over-current signal controls IGCT KF1 and IGCT KF2, kept it turned off, so that
Play a part of overcurrent protection.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deform still within protection scope of the present invention that creative work can make.
Claims (6)
1. it is a kind of with trap without control line carrier wave plasma cutting inverter control system, including Arc Welding Power, wire-feed motor, welding gun with
Welding cable, it is characterized in that：The Arc Welding Power is by welding cable and wire feed mechatronics, and the wire-feed motor is by welding electricity
Cable is electrically connected with welding gun, and welding wire is sent into welding torch position；The Arc Welding Power includes inversion circuit, the first trap and the first control
Making sheet, first trap is electrically connected with inversion circuit, and first trap is electrically connected with the first control panel；The wire feed
The second trap and the second control panel are provided with machine, second trap is electrically connected with the second control panel；Second resistance
Ripple device is electrically connected in series with the welding gun；
First control panel is electrically connected with first switch power module, and the first switch power module is the described first control
Plate provides power supply, and first control panel includes：First MCU micro-control units, carrier wave demodulation module, carrier wave overcurrent protection mould
Block, communication module, Arc Welding Power display module and PI proportional plus integral control modules, the carrier wave demodulation module and described first
MCU micro-control units are electrically connected, and the first MCU micro-control units are electrically connected with the carrier wave overcurrent protection module, described logical
News module is electrically connected with the first MCU micro-control units, the Arc Welding Power display module and the first MCU microcontroller lists
Member electrical connection, the PI proportional plus integral controls module is electrically connected with the first MCU micro-control units；
Second control panel is electrically connected with second switch power module, and the second switch power module is the described second control
Plate provides power supply, and second control panel includes：2nd MCU micro-control units, carrier modulation block, motor, solenoid valve control
Module, switching value sampling module, potentiometer sampling module and wire-feed motor display module, the 2nd MCU micro-control units are with carrying
Ripple modulation module is electrically connected, and the carrier modulation block passes through welding cable with the carrier wave demodulation module in first control panel
Electrical connection, the 2nd MCU micro-control units are electrically connected with motor, the 2nd MCU micro-control units and solenoid valve control mould
Block is electrically connected, and the switching value sampling module is electrically connected with the 2nd MCU micro-control units respectively with potentiometer sampling module,
Sampled signal is transferred to the 2nd MCU micro-control units, the 2nd MCU micro-control units are electrically connected with wire-feed motor display module
Connect.
2. a kind of as described in claim 1 is with trap without control line carrier wave plasma cutting inverter control system, its feature
It is：The welding cable is both power line, while being carrier signal line.
3. a kind of as described in claim 1 is with trap without control line carrier wave plasma cutting inverter control system, its feature
It is：The output voltage range of the Arc Welding Power is 12 V -80V.
4. a kind of as described in claim 1 is with trap without control line carrier wave plasma cutting inverter control system, its feature
It is：First control panel is in parallel with the both positive and negative polarity of welding cable, and it is wire-feed motor that first control panel, which provides carrier power source,
Second control panel provides power supply.
5. a kind of as described in claim 1 is with trap without control line carrier wave plasma cutting inverter control system, its feature
It is：First trap is made up of inductance element with capacity cell, is connected on the both positive and negative polarity of inversion circuit output, the inductance
Element is by magnetic material coiling.
6. a kind of as described in claim 1 is with trap without control line carrier wave plasma cutting inverter control system, its feature
It is：Second trap is made up of the inductance element of magnetic material coiling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610504273.9A CN106077894B (en) | 2016-06-30 | 2016-06-30 | It is a kind of with trap without control line carrier wave plasma cutting inverter control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610504273.9A CN106077894B (en) | 2016-06-30 | 2016-06-30 | It is a kind of with trap without control line carrier wave plasma cutting inverter control system |
Publications (2)
| Publication Number | Publication Date |
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| CN106077894A CN106077894A (en) | 2016-11-09 |
| CN106077894B true CN106077894B (en) | 2017-09-15 |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110560865B (en) * | 2019-09-11 | 2021-09-28 | 上海沪工焊接集团股份有限公司 | Method and system for controlling welding power supply side by wire feeding device side |
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| CN106077894A (en) | 2016-11-09 |
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