CN112719523A - Complete machine circuit principle of three-phase 380V power supply manual arc inverter welding machine - Google Patents

Complete machine circuit principle of three-phase 380V power supply manual arc inverter welding machine Download PDF

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CN112719523A
CN112719523A CN202010955636.7A CN202010955636A CN112719523A CN 112719523 A CN112719523 A CN 112719523A CN 202010955636 A CN202010955636 A CN 202010955636A CN 112719523 A CN112719523 A CN 112719523A
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pin
resistor
capacitor
chip
diode
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CN112719523B (en
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王南超
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Shanghai Zongrong Electric Appliance Co ltd
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Shanghai Zongrong Electric Appliance Co ltd
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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
    • B23K9/095—Monitoring or automatic control of welding parameters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Rectifiers (AREA)
  • Inverter Devices (AREA)

Abstract

The invention relates to the technical field of welding machine equipment, and discloses a whole machine circuit principle of a three-phase 380V power supply manual arc inversion welding machine, which solves the technical problem that the welding parameters are difficult to select at present; the interaction end of the control panel is electrically connected with a front panel circuit board, and the front panel circuit board is electrically connected with an LCD screen; the driving end of the control board is electrically connected with a power supply driving board, the power supply driving board is electrically connected with a filter capacitor board, and the filter capacitor board is electrically connected with an EMC board and an output rectifying board; the protection end of the control panel is electrically connected with an absorption plate. According to the technical scheme, the invention provides the circuit principle design of the whole machine, the inverter welding machine can adopt three-phase 380V power supply, the current regulation range of the welding machine is improved, and meanwhile, the man-machine interaction is realized by utilizing an LCD screen and a control panel, so that the aim is fulfilled.

Description

Complete machine circuit principle of three-phase 380V power supply manual arc inverter welding machine
Technical Field
The invention relates to the technical field of welding machine equipment, in particular to a whole circuit principle of a three-phase 380V power supply manual arc inverter welding machine.
Background
The inverter welder is an arc welding power source which adopts the technology of changing direct current into alternating current.
The control circuit of the inverter welding and cutting equipment comprises a given circuit, a driving circuit and the like, the feedback of voltage and current signals is processed, the circulation control of the whole machine is realized, and the control technology taking Pulse Width Modulation (PWM) as a core is adopted, so that the constant current characteristic of rapid pulse width modulation and the excellent welding and cutting process effect are obtained.
The manual arc welding machine on the current market has the following technical problems:
firstly, parameter setting is set depending on the experience of welders, the experience degree of each welder is different, the welded products have inconsistent effects, and the welding quality is not high due to the parameters set according to the experience;
secondly, because the traditional inverter welding machine adopts a direct-current storage battery for power supply, the current regulation range of the welding machine is small, and the application range of the welding machine is limited.
Disclosure of Invention
Aiming at the technical problem that welding parameters are difficult to select in the background technology, the invention provides a circuit principle design of a whole machine, which enables an inverter welding machine to adopt a three-phase 380V power supply, improves the current regulation range of the welding machine, and simultaneously realizes man-machine interaction by utilizing an LCD screen and a control panel so as to achieve the aim.
In order to achieve the purpose, the invention provides the following technical scheme:
the whole circuit principle of the three-phase 380V power supply manual arc inverter welding machine comprises a control panel, wherein the control panel plays a role in core control; the interaction end of the control panel is electrically connected with a front panel circuit board which is electrically connected with an LCD screen; the driving end of the control board is electrically connected with a power supply driving board, the power supply driving board is electrically connected with a filter capacitor board, and the filter capacitor board is electrically connected with an EMC board and an output rectifying board; the protection end of the control board is electrically connected with an absorption board.
Through above-mentioned technical scheme, through entering expert's parameter at the inside procedure of machine in advance, the user can be through according to present welding needs input welding material thickness, welding rod diameter, these three parameters of welding rod material, welding machine automatically regulated goes out the welding parameter that accords with the current situation, and the realization of this function relies on good user interaction simultaneously, consequently adopts the LCD screen to show. Simultaneously, the structure is optimized, the miniaturization of the machine is realized on the premise of meeting safety standards, the heat dissipation efficiency is optimized by improving the air duct structure, and the side plates are completely sealed to enhance the integral waterproof capability of the machine.
The welding machine adopts the full-bridge contravariant structure, and the electric current control range can be from 10A to 400A, and user interaction interface adopts serial ports LCD screen to show, and the parameter setting of unified expert makes the parameter control of machine more intelligent.
The invention has the following beneficial effects:
(1) the user inputs three basic parameters of the thickness of the welding material, the diameter of the welding rod and the material of the welding rod, the welding machine can obtain an internal program of the machine and input expert parameters, and automatically adjust the welding parameters according with the current condition, so that the intelligent welding machine is more intelligent;
(2) the welding machine adopts a full-bridge inversion structure, the current regulation range can be from 10A to 400A, and the user interaction interface is displayed by a serial port LCD screen.
Drawings
FIG. 1 is a first electrical connection diagram of the whole machine;
FIG. 2 is a second electrical connection diagram of the whole device;
FIG. 3 is a third electrical connection diagram of the whole machine;
FIG. 4 is a fourth electrical connection diagram of the whole machine;
FIG. 5 is a first schematic diagram of a control board circuit;
FIG. 6 is a second schematic diagram of the control board circuit;
FIG. 7 is a third schematic diagram of a control board circuit;
FIG. 8 is a fourth schematic diagram of the control board circuit;
FIG. 9 is a circuit schematic of a front panel circuit board;
FIG. 10 is a first schematic circuit diagram of the power driver board;
FIG. 11 is a second schematic diagram of the power driver board circuit;
FIG. 12 is a third schematic diagram of the power driver board circuit;
FIG. 13 is a schematic circuit diagram of a capacitive filter plate;
FIG. 14 is a schematic diagram of an EMC board circuit;
FIG. 15 is a schematic diagram of an output droop panel circuit;
FIG. 16 is a schematic diagram of an absorber plate circuit.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited to these examples.
The whole circuit principle of a three-phase 380V power supply manual arc inverter welding machine is shown in figures 1-4 and comprises a control board which plays a role in core control; the interaction end of the control panel is electrically connected with a front panel circuit board which is electrically connected with an LCD screen; the driving end of the control board is electrically connected with a power supply driving board, the power supply driving board is electrically connected with a filter capacitor board, and the filter capacitor board is electrically connected with an EMC board and an output rectifying board; the protection end of the control board is electrically connected with an absorption board.
As shown in fig. 5-8, the circuit of the control board includes a single chip U1, U1 has 32 pins, pin 1 is connected to a 3V3 power supply network, pin 2 of chip U2 is connected to one end of a capacitor C1 and one end of a resistor R1 is connected to the 3V3 power supply network, the other end of the resistor R1 is connected to the anode of a light emitting diode LED1, the cathode of the light emitting diode LED1 is connected to pin 1 of chip U2 and one end of a capacitor C2 are connected to the other end of the capacitor C1 and signal GND is connected, pin 3 of chip U2 is connected to the other end of the capacitor C2 and VCC power supply network, pin 2 of chip U1 is connected to pin 6 of a six-core pin base J1, pin 3 of chip U1 is connected to the anode of a diode D1, the cathode of a diode D1 is connected to one end of a resistor R2, the other end of resistor R2 is connected to one end of R3, one end of a resistor R3687458 and one end of a capacitor C, One end of the resistor R5 is connected with a No. 16 pin of the chip U3 and is connected with a signal SHDN, the other end of the resistor R4 is connected with the other end of the capacitor C3 and is connected with a signal GND, and the other end of the resistor R3 is connected with one end of the resistor R6, one end of the resistor R7 and one end of the resistor R8. One end of a resistor R9, one end of a capacitor C4, a cathode of a diode D2 and a cathode of a diode D3 are connected, an anode of a diode D2 is connected with a pin No. 1 of a two-core pin seat J2 and a cathode of a diode D4, an anode of a diode D3 is connected with a pin No. 2 of a two-core pin seat J2 and a cathode of a diode D5, an anode of a diode D4 is connected with an anode of a diode D5, the other end of a resistor R7, the other end of a resistor R8 and the other end of a resistor R9 and connected with a GND signal, the other end of a capacitor C4 is connected with one end of a resistor R10 and one end of a resistor R11, the other end of a resistor R10 is connected with a signal GND, the other end of a resistor R10 is connected with one end of a signal GND, the other end of a resistor R10 is connected with an S pole of a FET T10, and the G pole of an FET T10 is connected with a GND pole GN, One end of a capacitor C6 is connected, the other end of a resistor R12 is connected with a signal GND, the other end of the capacitor C6 is connected with a cathode of a diode D6, a cathode of a diode D7 and one end of a resistor R13, the other end of the resistor R13 is connected with a GND signal, a diode D6 is connected with a pin No. 4 of a six-core pin base J1 and a pin No. 11 of a chip U3, a diode D7 is connected with a pin No. 5 of the six-core pin base J1 and a pin No. 14 of the chip U3, a pin No. 8 of the chip U4 is connected with one end of a capacitor C8 and is connected with a power supply network VCC, a pin No. 4 of the chip U4 is connected with the other end of a capacitor C8 and is connected with the signal GND, a pin No. 2 of the chip U4 is connected with one end of the resistor R14, one end of a capacitor C7, one end of the resistor R15 and a pin No. 6 of the chip U4, the other end of the resistor R4 is, pin 7 of a chip U4 is suspended, pin 1 of the chip U4 is connected with one end of a resistor R16 and one end of a resistor R17, the other end of the resistor R16 is connected with a power supply network VCC, the other end of the resistor R17 is connected with an SHDN signal, the other end of the resistor R5 is connected with pin 8 of the chip U5, pin 4 of the chip U5 is connected with one end of a capacitor C9 and is connected with the power supply network VCC, pin 11 of the chip U5 is connected with the other end of a capacitor C9, one end of a resistor R19 and one end of a capacitor C10 are connected and are connected with a signal GND, pin 9 of the chip U5 is connected with the other end of a capacitor C10, the other end of a resistor R19 and one end of a resistor R18, the other end of the resistor R18 is connected with the power supply network VCC, pin 10 of the chip U5 is connected with a VREF signal, pin 4 of the chip U1 is connected with one end of a capacitor C11 and one end of a resistor R11 and one end of the other, pin No. 5 of chip U1 is connected with power supply network 3V3, pin No. six of chip U1 is connected with one end of resistor R22, one end of resistor R21, one end of capacitor C12 and the cathode of voltage regulator tube Z1, the other end of resistor R21 is connected with the anode of capacitor C12 and connected with GND SIGNAL, the other end of resistor R22 is connected with pin No. 14 and pin No. 13 of chip U5, pin No. 12 of chip U5 and one end of capacitor C13 are connected with one end of resistor R23 and pin No. 5 of chip U6, pin No. 6 of chip U6 is connected with power supply network VCC, pin No. 7 and pin No. 8 of chip U6 are suspended, pin No. 1 of chip U6 is connected with GND _ SIGNAL, pin No. 3 of chip U6 is connected with power supply network 24V, pin No. 2 of chip U6 is connected with one end of resistor R24, the other end of resistor R7 is connected with pin No. 3 and pin No. 368747 of capacitor R24 is connected with one end of capacitor C7 and chip C7, pin No. 2 of the chip U7 is connected to one end of the resistor R25, pin No. 4 of the chip U6, and the other end of the capacitor C14, and pin No. 8 of the chip U7 is connected to one end of the capacitor C18. Pin No. 1 of two-core pin base J4 is connected and connected with power supply network 24V, pin No. 4 of chip U7 is connected and connected with the other end of capacitor C18, pin No. 2 of two-core pin base J4 is connected and connected with GND _ SIGNAL, pin No. 3 of chip U7 is connected and connected with one end of capacitor C15, the anode of diode D8, the cathode of diode D9, one end of resistor R27 and one end of resistor R26, the other end of capacitor C15 is connected and connected with the anode of diode D9 and the other end of resistor R27 and connected with GND _ SIGNAL, the other end of diode D8 is connected with power supply network 24V, the other end of resistor R26 is connected and one end of resistor R28, one end of resistor R29 and one end of resistor R30, pin No. 1 of two-core pin base J3, the other end of resistor R28 is connected and connected with the cathode of diode D10, the anode of diode D10 is connected and connected with power supply network 24V, the other end of resistor R53 is connected and connected with GND SIGNAL pin No. 2 of two-, the other end of the resistor R30 is connected with one end of a resistor R31, one end of a capacitor C16 and the cathode of a voltage regulator tube Z2, the other end of the resistor R31 is connected with the other end of a capacitor C16 and is connected with a GND _ SIGNAL SIGNAL, the anode of the voltage regulator tube Z2 is connected with the cathode of the voltage regulator tube Z3, the anode of the voltage regulator tube Z3 is connected with one end of a resistor R32 and the pin No. 1 of a chip U8, the pin No. 2 of the chip U8 is connected with the other end of a resistor R32 and is connected with a GND _ SIGNAL SIGNAL, the pin No. 3 of the chip U8 is connected with one end of a capacitor C17 and one end of a resistor R33 and is connected with a GND SIGNAL, the pin No. 4 of the chip U33 is connected with the other end of a capacitor C33, the other end of the resistor R33, one end of the resistor R33 and the pin No. 1 of the chip U33, the other end of the resistor R33 is connected with a VREF SIGNAL, the other end of the pin No. 7 of the chip U33 is connected with the cathode of the, The anode of a voltage regulator tube Z4 is connected with a GND signal, a pin No. 3 of a potentiometer VR1 is connected with one end of a resistor R35, the other end of the resistor R35 is connected with one end of a resistor R36, one end of a resistor R37, one end of a resistor R38 and one end of a capacitor C20, the other end of the resistor R37 is connected with the other end of a capacitor C20 and is connected with the GND signal, the other end of the resistor R36 is connected with the cathode of a diode D12, the anode of a diode D11 and a pin No. 3 of a four-core needle seat J5, the cathode of a diode D11 is connected with a pin No. 1 of a four-core needle seat J5 and is connected with a power supply network VCC, the anode of a diode D12 is connected with a pin No. 2 of a four-core needle seat J5 and is connected with a power supply network VCC, a pin No. 4 of a four-core needle seat J5 is connected with the GND signal, a pin No. 8 of a chip U1 is connected with one end of a capacitor C21, a pin 1 of a two-, the other end of the resistor R39 is connected with a power supply network 3V3, a pin No. 9 of a chip U1 is connected with one end of a capacitor C22, a pin No. 1 of a two-core needle seat J7 and one end of a resistor R40, a pin No. 2 of the two-core needle seat J7 is connected with the other end of the capacitor C22 and is connected with a GND signal, the other end of the resistor R40 is connected with the power supply network 3V3, one end of a capacitor C23 is connected with one end of a capacitor C24 and is connected with the power supply network 3V3, the other end of a capacitor C23 is connected with the other end of a capacitor C24 and is connected with the GND signal, a pin No. 10 of a chip U1 is connected with one end of a resistor R41, one end of a capacitor C25 is connected with a pin No. 2 of a four-core needle seat J8, the other end of the capacitor C8 is connected with a pin No. 4 of a four-core needle seat J8 and is connected with the GND signal, a pin No. 1 of a four-core needle seat J8 and is connected, the other end of the resistor R42 is connected with one end of a capacitor C26 and a pin 3 of a potentiometer VR2, the other end of the capacitor C26 is connected with a pin 1 of a potentiometer VR2 and is connected with a GND signal, a pin 2 of the potentiometer VR2 is connected with one end of a resistor R43, the other end of the resistor R43 is connected with one end of a resistor R44 and a pin 3 of a chip U5, the other end of the resistor R44 is connected with a pin 2 of a potentiometer VR3, a pin 3 of the potentiometer VR3 is connected with a power supply network VCC, a pin 1 of the potentiometer VR3 is connected with a power supply network VCC, a pin 2 of the chip U5 is connected with the other end of a resistor R38 and one end of a resistor R45, the other end of the resistor R45 is connected with one end of a capacitor C27, the other end of the capacitor C7 is connected with a pin 1 of a chip U5 and one end of a resistor R46, the other end of the resistor R46 is connected with one end of the resistor R46, one end of the capacitor C, the other end of the resistor R47 is connected with the other end of the capacitor C28 and is connected with a GND signal, a pin 12 of the chip U1 is connected with the anode of the diode D13, the cathode of the diode D13 is connected with one end of the resistor R48 and the G pole of the field effect transistor T2, the other end of the resistor R48 is connected with the S pole of the field effect transistor T2 and is connected with the GND signal, the D pole of the field effect transistor T2 is connected with one end of the resistor R49, the other end of the resistor R49 is connected with one end of the resistor R50 and the pin 9 of the chip U3, the other end of the resistor R50 is connected with the GND signal, the pin 13, the pin 14 and the pin 15 of the chip U1 are suspended, the pin 16 of the chip U9 is connected with the GND signal, the pin 17 of the chip U1 is connected with the power supply network 3V3, the pin 18 of the chip U1 is connected with one end of the resistor R52 and one end of the resistor R53, and one end of the resistor, the other end of the resistor R53 is connected with the other end of the resistor R54 and is connected with a power supply network 3V3, the other end of the resistor R51 is connected with the other end of the resistor R52 and is connected with a GND signal, a pin No. 20, a pin No. 21 and a pin No. 22 of the chip U1 are suspended, a pin No. 23 of the chip U1 is connected with a pin No. 2 of a four-core pin bank J9, a pin No. 24 of the chip U1 is connected with a pin No. 3 of a four-core pin bank J9, a pin No. 1 of the four-core pin bank J9 is connected with the power supply network 3V3, a pin No. 4 of the four-core pin bank J9 is connected with the GND signal, a pin No. 25, a pin No. 26, a pin No. 27 and a pin No. 28 of the chip U1 are suspended, a pin No. 29 of the chip U1 is connected with one end of the resistor R56, the other end of the resistor 573R 5 is connected with a pin No. 3 of the four-core pin bank J10, a pin bank, the other end of the capacitor C29 is connected with a pin No. 4 of a four-core needle seat J10 and is connected with a GND signal, a pin No. 1 of the four-core needle seat J10 is connected with a power supply network 3V3, a pin No. 31 and a pin No. 32 of a chip U1 are connected with a signal GND, a pin No. 1 of a six-core needle seat J1 is connected with one end of a capacitor C30 and a pin No. 1 of a chip U9 and is connected with a power supply network VCC, a pin No. 2 of a chip U9 and a pin No. 2 of a six-core needle seat J1, the other end of a capacitor C30, one end of a capacitor C31, a cathode of a light-emitting diode LED2 and a pin No. 2 of a two-core needle seat J11 are connected with a GND signal, a pin No. 3 of the chip U9 is connected with the other end of the capacitor C31, one end of a resistor R57 and a pin No. 1 of the two-core needle seat 46J 45 are connected with the other end of the anode of the light-emitting, the pin No. 3 of the chip U3 is connected with a GND signal, the pin No. 4 of the chip U3 is connected with one end of a resistor R58, one end of a resistor R59 and one end of a resistor R60, the other end of a resistor R58 is connected with the GND signal, the other end of a resistor R60 is connected with one end of a capacitor C33, one end of a resistor R61 is connected, the other end of a capacitor C33 is connected with a GND signal, the other end of a resistor R61 is connected with a CT signal, the other end of a resistor R59 is connected with an E pole of a triode Q1, a C pole of a triode Q1 is connected with a VREF signal, a B pole of a triode Q1 is connected with one end of a capacitor C32 and a No. 8 pin of a chip U3, the other end of a capacitor C32 is connected with the GND signal, a No. 6 pin and a No. 7 pin of a chip U3 are connected, a No. 10 pin of a chip U3 is suspended, a No. 13 pin of the chip U3 is connected with a power supply network VCC, a No. 15 pin of a chip U3 is connected with one end of a capacitor C33 and is connected.
As shown in fig. 9, the front panel circuit board includes a single chip U16, the chip U16 has 32 pins, pin 1, pin 5, and pin 17 of the chip U16 are connected to the power network 3.3V, pin 2, pin 3, pin 6, pin 10, pin 12, pin 13, pin 17, pin 18, pin 19, pin 20, pin 21, pin 22, pin 25, pin 26, pin 27, and pin 28 of the chip U16 are floating, pin 4 of the chip U16 is connected to one end of a resistor R115 and one end of a capacitor C101, the other end of the resistor R115 is connected to the power network 3.3V, the other end of the capacitor C101 is connected to a GND signal, pin 7 of the chip U16 is connected to one end of a resistor R116, one end of a switch SW1, one end of a capacitor C102 is connected to the other end of the power network 3.3V, the other end of the capacitor C102 is connected to the SW1 and is connected to GND, pin 8 of chip 16 is connected with one end of resistor R117, the other end of resistor R117 is connected with pin 2 of four-core needle seat J29, pin 9 of chip U16 is connected with one end of resistor R118, the other end of resistor R118 is connected with pin 3 of four-core needle seat J29, pin 1 of four-core needle seat J29 is connected with 3.3V of power supply network, pin 4 of four-core needle seat J29 is connected with GND signal, pin 11 of chip U16 is connected with one end of capacitor C103, pin 1 of encoder U17 and one end of resistor R119, the other end of capacitor R103 is connected with pin 5 and pin 3 of encoder U17 and connected with GND signal, the other end of resistor R119 is connected with one end of resistor R120 and one end of resistor R121, the other end of resistor R120 is connected with pin 4 of encoder U17, pin 15 of chip U16 is connected with one end of capacitor C105, the other end of resistor R121 is connected with pin 82 of encoder U17 and pin 14 of chip U16, One end of a capacitor C104 is connected, a pin No. 6 and a pin No. 7 of an encoder U17 are suspended, the other end of the capacitor C104 is connected with the other end of a capacitor C105 and is connected with a GND signal, a pin No. 16 and a pin No. 31 of a chip U16 and a pin No. 32 of the chip U16 are connected with the GND signal, a pin No. 23 of a chip U16 is connected with a pin No. 2 of a four-core pin bank J30, a pin No. 24 of a chip U16 is connected with a pin No. 3 of a four-core pin bank J30, a pin No. 1 of the four-core pin bank J30 is connected with one end of a capacitor C106, one end of a capacitor C107 and one end of a capacitor C108 are connected with one end of a power supply network 3.3V, a pin No. 4 of the four-core pin bank J30 is connected with the other end of the capacitor C106, the other end of the capacitor C107 and the other end of the capacitor C108 are connected with the signal GND, a pin No. 29 of a chip U2 is connected with one end of a, the other end of the resistor R122 is connected with a No. 6 pin of the ten-core flat socket J32, a No. 1 pin, a No. 2 pin and a No. 3 pin of the ten-core flat socket J32 and a No. 1 pin of the two-core pin seat J31 are connected and connected with a power supply network 5V, and a No. 8 pin, a No. 9 pin and a No. 10 pin of the ten-core flat socket J32 and a No. 2 pin of the two-core pin seat J31 are connected and connected with a GND signal.
Chip U1 is STM32F042K6T6 singlechip, chip U2 is LD1117-33 steady voltage chip, chip U3 is UC3846 drive chip, U4 is LM393 comparator, chip U5 is LM324 operational amplifier, chip U6 is HCNR200 linear opto-coupler, chip U7 is LM358 operational amplifier, chip U8 is opto-coupler, chip U9 steady voltage chip 7805, chip U10 is opto-coupler, chip U11 is UC3842 drive chip, chip U12 is opto-coupler, chip U13 is opto-coupler, chip U14 is power supply chip 7915, chip U15 is opto-coupler, chip U16 is STM32F042K6T 6.
As shown in fig. 10, 11 and 12, the power supply driving board includes a two-core pin holder J13, pin No. 1 of the two-core pin holder J13 is connected to the positive output end of the three-phase rectifier bridge 7 through an external harness, pin No. 2 of the two-core pin holder J13 is connected to the negative output end of the three-phase rectifier bridge 7 through an external harness, pin No. 1 of the two-core pin holder J13 is connected to the anode of a diode D14, the cathode of the diode D14 is connected to one end of a capacitor C45, one end of a resistor R62, one end of a resistor R63, one end of a resistor R66, one end of a capacitor C48, one end of a capacitor C47, pin No. 12 of a transformer TR1, the other end of a capacitor C47 is connected to a GND signal, the other end of the resistor R63 is connected to one end of a resistor R64 and the cathode of a regulator Z5, the anode of the regulator Z5 is connected to one end of a capacitor C46, one end of a triode R65, the pole B of a triode Q2, The other end of the resistor R64, the other end of the capacitor C46, the other end of the resistor R65 and the E pole of the triode Q2 are connected, the other end of the resistor R62 is connected with one end of the resistor R67, the pin No. 4 of the chip U10, one end of the resistor R70, one end of the capacitor C54 and the A pole of the thyristor T5, the other end of the resistor R5 is connected with one end of the capacitor C5 and the cathode of the diode D5, the anode of the diode D5 is connected with the pin No. 7 of the transformer TR 5, the pin No. 8 of the transformer TR 5 is connected with the other end of the capacitor C5 and connected with a signal GND _ 5, the pin No. 3 of the chip U5 is connected with one end of the capacitor C5, one end of the resistor R5, one end of the capacitor C5 and the pin No. 2 of the chip U5, the other end of the resistor R5 is connected with the other end of the signal GND _ 5 and the pin No. 1 of the capacitor U36, The C pole of a triode Q2 and the D pole of a field effect transistor T3 are connected, the G pole of the field effect transistor T3 is connected with the other end of a resistor R70, the pin No. 4 of a chip U12 and one end of a capacitor C52, the other end of the capacitor C52 is connected with the pin No. 3 of a chip U12, the pin No. 4 of a chip U13 and one end of a capacitor C53, the other end of the capacitor C53 is connected with the pin No. 3 of the chip U53 and the S pole of the field effect transistor T53 and is connected with a signal GND _ 53, the pin No. 1 of the chip U53 is connected with one end of a resistor R53 and one end of a resistor R53, the other end of the resistor R53 is connected with the cathode of the diode D53, the anode of the diode D53 is connected with the pin No. 1 of a three-core pin J53, one end of the pin No. 1 of the resistor R53 of the chip U53 and one end of the resistor R53 are connected with the other end of the diode D53, the anode of the three-pin J53 and the three-core, Pin No. 2 of chip U13, the other end of resistor R72, and one end of varistor R75 are connected, the other end of varistor R75 is connected to pin No. 3 of three-pin header J14, pin No. 3 of chip U11 is connected to one end of capacitor C55 and one end of resistor R76, the other end of capacitor C54 is connected to the other end of capacitor C55 and to signal GND _ FIELD SIGNAL, the other end of resistor R76 is connected to one end of resistor R77, and the S-pole of fet T77, the G-pole of fet T77 is connected to resistor R77, the other end of resistor R77 is connected to pin No. 6 of chip U77, the D-pole of fet T77 is connected to the anode of diode D77, pin No. 10 of transformer TR 77, the cathode of diode D77 is connected to the anode of diode D77, the other end of diode D77 is connected to the cathode of resistor R77, the other end of resistor R77, and the other end of resistor R36108 are connected to one end of resistor R77, One end of a capacitor C56 is connected with a G pole of a thyristor T5, the other end of a resistor R77 is connected with the other end of a resistor R78, the other end of a resistor R108, the other end of a capacitor C56 and a K pole of a thyristor T5 and is connected with a signal GND _ FIELD SIGNAL, a pin 4 of a chip U11 is connected with one end of a resistor R109 and one end of a capacitor C76, the other end of the resistor R109 is connected with a pin 8 of the chip U11 and one end of a capacitor C75, the other end of the capacitor C75 is connected with the other end of a capacitor C76 and a pin 5 of a chip U11 and is connected with a signal GND _ FIELD SIGNAL, a pin 6 of a transformer TR1 is connected with an anode of a diode D20, a cathode of the diode D20 is connected with one end of a capacitor C57, one end of a capacitor C58, one end of a resistor R81, a pin 1 of a two-core J15, a pin 1 of the two-core J15, a pin base 15 and a cathode of the resistor R3624, pin No. 5 of transformer TR1 is connected with the other end of capacitor C57, the other end of capacitor C58, the other end of resistor R81, pin No. 2 of two-core needle seat J15 and pin No. 2 of two-core needle seat J16 and is connected with GND _0 signal, pin No. 2 of two-core needle seat J17 is connected with the anode of diode D23 and the C pole of triode Q3, the B pole of triode Q3 is connected with the other end of resistor R84 and pin No. 4 of chip U15, the E pole of triode Q3 is connected with pin No. 3 of chip U15 and is connected with signal GND _0, pin No. 1 of chip U15 is connected with one end of resistor R85, the other end of resistor R85 is connected with pin No. 6 of six-core needle seat J18, pin No. 2 of chip U15 is connected with pin No. 2 of six-core J18 and is connected with signal GND 60, pin No. 2 of transformer TR1 is connected with the cathode of diode D21, one end of diode D21 is connected with the anode of capacitor C60 and one, Pin No. 2 of chip U14 is connected, pin No. 3 of chip U14 is connected with one end of capacitor C64, one end of resistor R83, pin No. 3 of six-core pin base J18 and is connected with power supply network-VCC, pin No. 3 of transformer TR1 and the other end of capacitor C59, the other end of capacitor C60, pin No. 2 of chip U14, the other end of capacitor C64, the other end of resistor R83, one end of capacitor C61, one end of capacitor C62, one end of capacitor C63, one end of resistor R82 are connected and is connected with GND signal, pin No. 1 of transformer TR1 and the anode of diode D22 are connected, the cathode of diode D22 and the other end of capacitor C61, the other end of capacitor C62, the other end of capacitor C63, the other end of resistor R82 and is connected with GND signal VCC, one end of capacitor C82 is connected with GND signal, the other end of capacitor C360 signal, pin No. 1 of six-core pin base, One end of a resistor R88 is connected with a power supply network VCC, the other end of the resistor R88 is connected with one end of a resistor R89, one end of a capacitor C66 and the R pole of a voltage-stabilizing triode T6, the A pole of the voltage-stabilizing triode T6 is connected with the other end of a resistor R89 and is connected with a signal GND, the K pole of the voltage-stabilizing triode T6 is connected with the other end of a capacitor C66, the pin No. 2 of a chip U10 and one end of a resistor R87, the other end of the resistor R87 is connected with the other end of the resistor R86 and the pin No. 1 of a chip U10, the pin No. 4 of a six-core pin base J18 is connected with one end of the resistor R90, one end of the capacitor C90 and one end of the capacitor C90, the other end of the capacitor C90 is connected with the other end of the resistor R90 and the anode of a voltage-stabilizing tube Z90, the cathode of the voltage-stabilizing tube Z90 is connected with the B pole of the triode Q90, the E pole of the power supply, The cathode of a voltage regulator tube Z7 is connected, the anode of a voltage regulator tube Z7 is connected with the B pole of a triode Q5, the C pole of the triode Q5 is connected with one end of a resistor R94, a pin No. 1 of a transformer TR2 is connected, the other end of a resistor R94 is connected with the C pole of a triode Q4, the E pole of a triode Q5 is connected with the E pole of a triode Q7 and is connected with a GND signal, a pin No. 5 of a six-core pin base J18 is connected with one end of a resistor R92, one end of a resistor R93, one end of a capacitor C69 and one end of a capacitor C70, the other end of the capacitor C69 is connected with the other end of the resistor R69 and the anode of the voltage regulator tube Z69, the cathode of the voltage regulator tube Z69 is connected with the B pole of the triode Q69, the other end of the resistor R69 is connected with the other end of the resistor C69 and the cathode of the voltage regulator tube Z69, the pin TR 69 is connected with the pin TR2 of the resistor R36, the other end of the resistor R95 is connected with the C pole of the triode Q6, the pin 3 of the transformer TR2 is connected with the anode of the diode D24, the anode of the D25 and one end of the resistor R96, the other end of the diode D24 is connected with the E pole of the triode Q8, the cathode of the voltage stabilizing tube Z10 and one end of the capacitor C71, the cathode of the diode D71 is connected with the other end of the resistor R71 and the B pole of the triode Q71, the other end of the capacitor C71 is connected with the anode of the voltage stabilizing tube Z71 and one end of the resistor R71, the other end of the resistor R71 is connected with the anode of the voltage stabilizing tube Z71 and the pin 1 of the two-core pin J71, the cathode of the voltage stabilizing tube Z71 is connected with one end of the resistor R71 and the cathode of the voltage stabilizing tube Z71, the pin 4 of the transformer TR 71 is connected with the C pole of the transistor Q71, the anode of the voltage stabilizing tube Z71 and the anode of the diode D71 and the anode of the resistor D71 and, the other end of the diode D26 is connected with the E pole of the triode Q9, the cathode of the voltage regulator tube Z13 and one end of the capacitor C72, the cathode of the diode D27 is connected with the other end of the resistor R99 and the B pole of the triode Q9, the other end of the capacitor C72 is connected with the anode of the voltage regulator tube Z13 and one end of the resistor R100, the other end of the resistor R100 is connected with the anode of the voltage regulator tube Z14 and the pin No. 1 of the two-core pin base J20, the cathode of the voltage regulator tube Z14 is connected with one end of the resistor R101 and the cathode of the voltage regulator tube Z15, the pin No. 8 of the transformer TR2 is connected with the C pole of the triode Q9, the anode of the voltage regulator tube Z15 and the pin No. 2 of the two-core pin base J5739, the pin No. 5 of the transformer TR2 is connected with the anode of the diode D28, the anode of the D29 and one end of the resistor R102, the other end of the diode D28 is connected with the E pole of the triode Q, The B pole of a triode Q10 is connected, the other end of a capacitor C73 is connected with the anode of a voltage regulator tube Z16 and one end of a resistor R103, the other end of the resistor R103 is connected with the anode of the voltage regulator tube Z17 and the pin No. 1 of a two-core needle base J21, the cathode of the voltage regulator tube Z17 is connected with one end of a resistor R104 and the cathode of a voltage regulator tube Z18, the pin No. 6 of a transformer TR2 is connected with the C pole of a triode Q10, the anode of the voltage regulator tube Z18 and the pin No. 2 of a two-core needle base J21, the pin No. 9 of the transformer TR2 is connected with the anode of a diode D30, the anode of a D31 and one end of a resistor R105, the other end of a diode D31 is connected with the E pole of a triode Q11, the cathode of the voltage regulator tube Z19 and one end of a capacitor C74, the cathode of a diode D31 is connected with the other end of a resistor R105 and the B pole of a triode Q11, the other end of a capacitor C74 is connected with the, Pin No. 1 of the two-core pin seat J22 is connected, the cathode of the voltage regulator tube Z20 is connected with one end of the resistor R107 and the cathode of the voltage regulator tube Z21, and pin No. 10 of the transformer TR2 is connected with the C pole of the triode Q11, the anode of the voltage regulator tube Z21 and pin No. 2 of the two-core pin seat J22.
As shown in fig. 13, the circuit structure of the capacitive filter plate is one end of a capacitor C93 and one end of a capacitor C94, one end of a capacitor C77, one end of a capacitor C78, the other end of a capacitor C78, the other end of, The other end of the capacitor C86, the other end of the capacitor C85, the other end of the capacitor C88 and the other end of the capacitor C84 are connected.
As shown IN fig. 14, the EMC board includes a common mode inductor L1, the common mode inductor L1 has 6 ports, the port No. 1 of the common mode inductor L1 is connected to one end of a capacitor C34, one end of a capacitor C37, one end of a capacitor C39, and an input pad a _ IN, the port No. 2 of the common mode inductor L1 is connected to one end of a capacitor C35, the other end of a capacitor C37, one end of a capacitor C38, and an input pad B _ IN, the port No. 3 of the common mode inductor L1 is connected to one end of a capacitor C36, the other end of a capacitor C38, the other end of a capacitor C39, and an input pad C _ IN, the other end of a capacitor C34 and the other end of a capacitor C36, the port No. 4 of the common mode inductor L1 is connected to one end of a capacitor C40, an output pad a _ OUT, the port No. 5 of the common mode inductor L1 is connected to one end of a capacitor C41, an output pad B _ OUT, and the port No. 6, The output pad C _ OUT is connected, the other end of the capacitor C40 is connected to the other end of the capacitor C41, the other end of the capacitor C42, one end of the capacitor C43, and one end of the capacitor C44, and the other end of the capacitor C43 and the other end of the capacitor C44 are connected to the ground pad J12.
As shown in fig. 15, the output rectifying board has a circuit structure in which an output pad J24 is connected to two anode ports of a diode D32, two anode ports of D33, two anode ports of D34, two anode ports of D35, an output pad J23, one end of a resistor R110, and one end of a resistor R111, the other end of the resistor R110 is connected to one end of a capacitor C95, the other end of the resistor R111 is connected to one end of a capacitor C96, the other end of the capacitor C95 is connected to the other end of a capacitor C96, a cathode of a diode D32, a cathode of a diode D33, a cathode of a diode D34, and a cathode of a diode D35.
As shown in fig. 16, the circuit structure of the absorber plate is that an input pad J26 is connected to a voltage dependent resistor R114, a cathode of a diode D37, an anode of a diode D36, and one end of a capacitor C97, an anode of a diode D37 is connected to one end of a resistor R113 and one end of a capacitor C100, a cathode of a diode D36 is connected to one end of a resistor R112 and one end of a capacitor C99, the other end of the voltage dependent resistor R114 is connected to the other end of the capacitor C100, the other end of the resistor R113, the other end of the capacitor C99, the other end of the resistor R112, and one end of a capacitor C98, and the other end of the capacitor C98 is connected to the other end of a capacitor C97.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (9)

1. The whole circuit principle of the three-phase 380V power supply manual arc inverter welding machine is characterized by comprising a control board, wherein the control board plays a role in core control;
the interaction end of the control panel is electrically connected with a front panel circuit board, and the front panel circuit board is electrically connected with an LCD screen;
the driving end of the control board is electrically connected with a power supply driving board, the power supply driving board is electrically connected with a filter capacitor board, and the filter capacitor board is electrically connected with an EMC board and an output rectifying board;
the protection end of the control panel is electrically connected with an absorption plate.
2. The whole circuit principle of the three-phase 380V power supply manual-arc inverter welding machine according to claim 1 is characterized in that: the circuit of the control board comprises a singlechip chip U1, a U1 is provided with 32 pins, a pin No. 1 is connected with a 3V3 power supply network, a pin No. 2 of the chip U2 is connected with one end of a capacitor C1 and one end of a resistor R1 and is connected with a 3V3 power supply network, the other end of the resistor R1 is connected with the anode of a light emitting diode LED1, the cathode of the light emitting diode LED1 is connected with a pin No. 1 of a chip U2 at the other end of the capacitor C1 and one end of a capacitor C2 and is connected with a signal GND, a pin No. 3 of a chip U2 is connected with the other end of a capacitor C2 and is connected with a VCC power supply network, a pin No. 2 of the chip U1 is connected with a pin No. 6 of a six-core pin base J1, a pin No. 3 of the chip U1 is connected with the anode of a diode D1, the cathode of the diode D1 is connected with one end of a resistor R1 and a signal pin SHU 3616 and is connected with a signal pin SHU 3616, the other end of the resistor R4 is connected with the other end of the capacitor C3 and is connected with a signal GND, the other end of the resistor R3 is connected with one end of a resistor R6, one end of a resistor R7, one end of a resistor R8, one end of a resistor R9, one end of a capacitor C4, the cathode of a diode D2 and the cathode of a diode D3, the anode of a diode D2 is connected with the pin No. 1 of the two-core needle seat J2 and the cathode of the diode D4, the anode of the diode D4 is connected with the pin No. 2 of the two-core needle seat J4 and the cathode of the diode D4, the anode of the diode D4 is connected with the anode of the diode D4, the other end of the resistor R4 and is connected with the signal, the other end of the capacitor C4, the other end of the GND and the pin T4 of the chip U4 are connected with a field effect transistor field effect tube of the chip D4, the other end of the capacitor C5 is connected with a signal GND, the S pole of the field effect tube T1 is connected with the signal GND, the G pole of the field effect tube T1 is connected with one end of a resistor R12 and one end of a capacitor C6, the other end of the resistor R12 is connected with the signal GND, the other end of the capacitor C6 is connected with the cathode of a diode D6, the cathode of a diode D7 and one end of a resistor R13, the other end of the resistor R13 is connected with the GND signal, a diode D6 is connected with a No. 4 pin of a six-core pin base J1 and a No. 11 pin of a chip U3, a diode D7 is connected with a No. 5 pin of a six-core pin base J1 and a No. 14 pin of a chip U3, a No. 8 pin of the chip U4 is connected with one end of a capacitor C8 and is connected with a power supply network VCC, a No. 4 pin of a chip U4 is connected with the other end of a capacitor C8 and connected with the signal GND, a No. 2 pin of, the other end of the resistor R14 is connected with the other end of the capacitor C7, the pin No. 5 of the chip U4 and connected with a signal GND, the other end of the resistor R15 is connected with a power supply network VCC, the pin No. 7 of the chip U4 is suspended, the pin No. 1 of the chip U4 is connected with one end of the resistor R16 and one end of the resistor R17, the other end of the resistor R16 is connected with the power supply network VCC, the other end of the resistor R17 is connected with an SHDN signal, the other end of the resistor R5 is connected with the pin No. 8 of the chip U5, the pin No. 4 of the chip U5 is connected with one end of the capacitor C9 and connected with the power supply network VCC, the pin No. 11 of the chip U5 is connected with the other end of the capacitor C9, one end of the resistor R19 and one end of the capacitor C10 and connected with the signal, the pin No. 9 of the chip U5 is connected with the other end of the capacitor C9, the other end of the resistor 686R 695, no. 4 of a chip U1 is connected with one end of a capacitor C11 and one end of a resistor R20, the other end of a capacitor C11 is connected with a GND SIGNAL, the other end of a resistor R20 is connected with a power supply network 3V3, a No. 5 pin of a chip U1 is connected with a power supply network 3V3, a No. six pin of a chip U1 is connected with one end of a resistor R22, one end of a resistor R21, one end of a capacitor C12 and a cathode of a stabilivolt Z1, the other end of a resistor R21 is connected with the other end of a capacitor C12 and an anode of a stabilivolt Z1 and is connected with the GND SIGNAL, the other end of a resistor R22 is connected with a No. 14 pin and a No. 13 pin of a chip U5, a No. 12 pin of a chip U5 and one end of a capacitor C13 are connected with one end of a resistor R23 and a No. 5 pin of a chip U6, a No. 6 pin of a chip U6 is connected with a power supply network VCC, a No. 7 pin and a pin of a No. 368 of a, enuresis 2 of a chip U6 is connected with one end of a resistor R24, the other end of the resistor R24 is connected with one end of a capacitor C14, pin 1 of a chip U7, pin 2 of a chip U7 is connected with one end of a resistor R25, pin 4 of a chip U6 and the other end of a capacitor C14, pin 8 of a chip U7 is connected with one end of a capacitor C18, pin 1 of a two-core pin base J4 is connected with a power supply network 24V, pin 4 of a chip U7 is connected with the other end of a capacitor C18 and pin 2 of a two-core pin base J4 and is connected with GND _ SIGNAL SIGNALs, pin 3 of the chip U7 is connected with one end of a capacitor C15, the anode of a diode D8, the cathode of a diode D9, one end of a resistor R9 is connected with the other end of a diode D9, the other end of a resistor R9 is connected with the anode of a diode D9, the other end of the resistor R9 is connected with the GND _ SIGNAL network 72, and one end of the resistor GND _ SIGNAL 24, One end of a resistor R29 and one end of a resistor R8 are connected with a pin No. 1 of a two-core needle seat J3, the other end of a resistor R28 is connected with a cathode of a diode D10, an anode of a diode D10 is connected with a power supply network 24V, the other end of a resistor R29 is connected with a pin No. 2 of a two-core needle seat J3 and connected with a GND _ SIGNAL SIGNAL, the other end of a resistor R30 is connected with one end of a resistor R31, one end of a capacitor C16 and a cathode of a voltage regulator Z2, the other end of a resistor R31 is connected with the other end of a capacitor C16 and connected with a GND _ SIGNAL SIGNAL, an anode of a voltage regulator Z2 is connected with a cathode of a voltage regulator Z3, an anode of a voltage regulator Z3 is connected with one end of the resistor R32 and a pin No. 1 of a chip U8, a pin No. 2 of a chip U8 is connected with the other end of a resistor R32 and connected with a GND _ SIGNAL SIGNAL, a pin No. 3 of the chip U8 is connected with one end of the capacitor C36, The other end of the resistor R33, one end of the resistor R34 and the pin No. 1 of the chip U3 are connected, the other end of the resistor R34 is connected with a VREF signal, the pin No. 7 of the chip U1 is connected with the pin No. 2 of the potentiometer VR1, one end of the capacitor C19 and the cathode of the voltage regulator Z4, the pin No. 1 of the potentiometer VR1 is connected with the other end of the capacitor C19 and the anode of the voltage regulator Z4 and is connected with a GND signal, the pin No. 3 of the potentiometer VR1 is connected with one end of the resistor R35, the other end of the resistor R35 is connected with one end of the resistor R36, one end of the resistor R37 and one end of the capacitor C37 and is connected with a GND signal, the other end of the resistor R37 is connected with the cathode of the diode D37, the anode of the diode D37 and the pin No. 3 of the four core pin VCC network pin 37, the anode pin of the diode D37 and the anode of the diode D37 are connected with a network VCC network pin, a pin No. 4 of a four-core needle seat J5 is connected with a GND signal, a pin No. 8 of a chip U1 is connected with one end of a capacitor C21, a pin No. 1 of a two-core needle seat J6, one end of a resistor R39 is connected with the other end of a capacitor C21 and is connected with a pin No. 2 of a two-core needle seat J6 and is connected with the GND signal, the other end of a resistor R39 is connected with a power supply network 3V3, a pin No. 9 of a chip U1 is connected with one end of a capacitor C22, a pin No. 1 of a two-core needle seat J7 and one end of a resistor R40 are connected, a pin No. 2 of a two-core needle seat J7 is connected with the other end of a capacitor C22 and is connected with the GND signal, the other end of a resistor R40 is connected with the power supply network 3V3, one end of a capacitor C23 is connected with one end of a capacitor C24 and is connected with a power supply network 3V3, the other end of a capacitor C23 is connected with the other, the other end of a capacitor C25 is connected with a pin No. 4 of a four-core pin seat J8 and is connected with a GND signal, a pin No. 1 of the four-core pin seat J8 is connected with the other end of a resistor R41 and is connected with a power supply network 3V3, a pin No. 3 of the four-core pin seat J8 is suspended, a pin No. 11 of a chip U1 is connected with one end of a resistor R42, the other end of the resistor R42 is connected with one end of a capacitor C26 and a pin No. 3 of a potentiometer VR2, the other end of a capacitor C26 is connected with a pin No. 1 of a potentiometer VR2 and is connected with a GND signal, a pin No. 2 of the potentiometer VR2 is connected with one end of a resistor R43, the other end of the resistor R43 is connected with one end of a resistor R44 and a pin No. 3 of the chip U5, the other end of a resistor R44 is connected with a pin No. 2 of the potentiometer VR3, a pin No. 3 of the potentiometer VR3 is connected with the power supply network, a, One end of a resistor R45 is connected, the other end of the resistor R45 is connected with one end of a capacitor C27, the other end of a capacitor C27 is connected with a pin No. 1 of a chip U5 and one end of a resistor R46, the other end of the resistor R46 is connected with one end of a resistor R47, one end of a capacitor C28 and a pin No. 5 of a chip U3, the other end of a resistor R47 is connected with the other end of a capacitor C28 and connected with a GND signal, a pin No. 12 of a chip U1 is connected with an anode of a diode D13, a cathode of a diode D13 is connected with one end of a resistor R48 and a G pole of a field effect transistor T2, the other end of a resistor R48 is connected with an S pole of a field effect transistor T2 and connected with a GND signal, a D pole of a field effect transistor T2 is connected with one end of a resistor R49, the other end of a resistor R49 is connected with one end of a pin No. 9 of a chip U49 and a pin No. 13, a pin GN, a No. 16 pin of a chip U1 is connected with a GND signal, a No. 17 pin of the chip U1 is connected with a power supply network 3V3, a No. 18 pin of the chip U1 is connected with one end of a resistor R52 and one end of a resistor R53, a No. 19 pin of the chip U1 is connected with one end of a resistor R51 and one end of a resistor R54, the other end of the resistor R53 is connected with the other end of the resistor R54 and connected with the power supply network 3V3, the other end of the resistor R51 is connected with the other end of the resistor R52 and connected with the GND signal, a No. 20 pin, a No. 21 pin and a No. 22 pin of a chip U1 are suspended, a No. 23 pin of the chip U1 is connected with a No. 2 pin of a four-core pin bank J9, a No. 24 pin of the chip U1 is connected with a No. 3 pin of a four-core pin bank J9, a No. 1 pin of the four-core pin bank J9 is connected with the power supply network 3V3, a No. 4 pin J, Pin 29 of chip U1 is connected with one end of resistor R56, the other end of resistor R56 is connected with pin 3 of four-core pin seat J10, pin 30 of chip U1 is connected with one end of capacitor C29, one end of resistor R55 is connected, the other end of resistor R55 is connected with pin 2 of four-core pin seat J10, the other end of capacitor C29 is connected with pin 4 of four-core pin seat J10 and is connected with GND signal, pin 1 of four-core pin seat J10 is connected with power supply network 3V3, pin 31 and pin 32 of chip U1 are connected and are connected with signal GND, pin 1 of six-core pin seat J1 is connected with one end of capacitor C30 and pin 1 of chip U9 and is connected with power supply network VCC, pin 2 of chip U9 is connected with pin 2 of six-core J1, the other end of capacitor C30, one end of capacitor C31, cathode of LED2 and pin two-core pin seats J11, and the other end of two-core pin seat J8743 is connected with signal pin 3 of capacitor C31 and the other end of capacitor C9, One end of a resistor R57 is connected with a pin No. 1 of a two-core needle seat J11, the other end of the resistor R57 is connected with an anode of a light emitting diode, a pin No. 2 of a chip U3 is connected with one end of a capacitor C29 and is connected with a VREF signal, the other end of a capacitor C29 is connected with a GND signal, a pin No. 3 of a chip U3 is connected with a GND signal, a pin No. 4 of a chip U3 is connected with one end of a resistor R58, one end of a resistor R59 and one end of a resistor R60, the other end of a resistor R58 is connected with a GND signal, the other end of a resistor R60 is connected with one end of a capacitor C33 and one end of a resistor R61, the other end of a capacitor C33 is connected with a GND signal, the other end of a resistor 686R 9 is connected with a CT signal, the other end of a resistor R59 is connected with an E pole of a triode Q1, a C pole of a triode Q1 is connected with a VREF signal, a B pole B of a triode Q1 is connected with, no. 10 pin of the chip U3 is suspended, No. 13 pin of the chip U3 is connected with a power supply network VCC, No. 15 pin of the chip U3 is connected with one end of the capacitor C33 and is connected with the power supply network VCC, and the other end of the capacitor C33 is connected with a GND signal.
3. The whole circuit principle of the three-phase 380V power supply manual-arc inverter welding machine according to claim 2 is characterized in that: the front panel circuit board comprises a single chip U16, a chip U16 is provided with 32 pins, a pin No. 1, a pin No. 5 and a pin No. 17 of a chip U16 are connected with a power supply network by 3.3V, a pin No. 2, a pin No. 3, a pin No. 6, a pin No. 10, a pin No. 12, a pin No. 13, a pin No. 17, a pin No. 18, a pin No. 19, a pin No. 20, a pin No. 21, a pin No. 22, a pin No. 25, a pin No. 26, a pin No. 27 and a pin No. 28 of a chip U599, a pin No. 4 of a chip U16 is connected with one end of a resistor R115 and one end of a capacitor C101, the other end of the resistor R115 is connected with 3.3V of the power supply network, the other end of the capacitor C101 is connected with a GND signal, a pin No. 7 of a chip U16 is connected with one end of a resistor R116, one end of a switch SW1 and one end of a capacitor C102, the other end of, pin 8 of chip 16 is connected with one end of resistor R117, the other end of resistor R117 is connected with pin 2 of four-core needle seat J29, pin 9 of chip U16 is connected with one end of resistor R118, the other end of resistor R118 is connected with pin 3 of four-core needle seat J29, pin 1 of four-core needle seat J29 is connected with 3.3V of power supply network, pin 4 of four-core needle seat J29 is connected with GND signal, pin 11 of chip U16 is connected with one end of capacitor C103, pin 1 of encoder U17 and one end of resistor R119, the other end of capacitor R103 is connected with pin 5 and pin 3 of encoder U17 and connected with GND signal, the other end of resistor R119 is connected with one end of resistor R120 and one end of resistor R121, the other end of resistor R120 is connected with pin 4 of encoder U17, pin 15 of chip U16 is connected with one end of capacitor C105, the other end of resistor R121 is connected with pin 82 of encoder U17 and pin 14 of chip U16, One end of a capacitor C104 is connected, a pin No. 6 and a pin No. 7 of an encoder U17 are suspended, the other end of the capacitor C104 is connected with the other end of a capacitor C105 and is connected with a GND signal, a pin No. 16 and a pin No. 31 of a chip U16 and a pin No. 32 of the chip U16 are connected with the GND signal, a pin No. 23 of a chip U16 is connected with a pin No. 2 of a four-core pin bank J30, a pin No. 24 of a chip U16 is connected with a pin No. 3 of a four-core pin bank J30, a pin No. 1 of the four-core pin bank J30 is connected with one end of a capacitor C106, one end of a capacitor C107 and one end of a capacitor C108 are connected with one end of a power supply network 3.3V, a pin No. 4 of the four-core pin bank J30 is connected with the other end of the capacitor C106, the other end of the capacitor C107 and the other end of the capacitor C108 are connected with the signal GND, a pin No. 29 of a chip U2 is connected with one end of a, the other end of the resistor R122 is connected with a No. 6 pin of the ten-core flat socket J32, a No. 1 pin, a No. 2 pin and a No. 3 pin of the ten-core flat socket J32 and a No. 1 pin of the two-core pin seat J31 are connected and connected with a power supply network 5V, and a No. 8 pin, a No. 9 pin and a No. 10 pin of the ten-core flat socket J32 and a No. 2 pin of the two-core pin seat J31 are connected and connected with a GND signal.
4. The whole circuit principle of the three-phase 380V power supply manual-arc inverter welding machine according to claim 3 is characterized in that: chip U1 is STM32F042K6T6 singlechip, chip U2 is LD1117-33 steady voltage chip, chip U3 is UC3846 drive chip, U4 is LM393 comparator, chip U5 is LM324 operational amplifier, chip U6 is HCNR200 linear opto-coupler, chip U7 is LM358 operational amplifier, chip U8 is optoelectronic coupler, chip U9 is steady voltage chip 7805, chip U15 is optoelectronic coupler, chip U16 is STM32F042K6T6 singlechip.
5. The whole circuit principle of the three-phase 380V power supply manual-arc inverter welding machine according to claim 4 is characterized in that: the power supply driving board comprises a two-core needle seat J13, a pin No. 1 of the two-core needle seat J13 is connected with an anode output end of a three-phase rectifier bridge 7 through an external wire harness, a pin No. 2 of the two-core needle seat J13 is connected with a cathode output end of the three-phase rectifier bridge 7 through the external wire harness, a pin No. 1 of the two-core needle seat J13 is connected with an anode of a diode D14, a cathode of a diode D14 is connected with one end of a capacitor C45, one end of a resistor R62, one end of a resistor R63, one end of a resistor R66, one end of a capacitor C48, a pin No. 12 of a transformer TR1, the other end of a capacitor C47 is connected with a GND signal, the other end of the resistor R63 is connected with one end of a resistor R64 and a cathode of a voltage stabilizing tube Z5, an anode of the voltage stabilizing tube Z5 is connected with one end of a capacitor C46, one end of a resistor R65 and a pole B of a triode Q2 are connected, and a pin No, The other end of the capacitor C46, the other end of the resistor R65, the E pole of the triode Q2, the other end of the resistor R62, one end of the resistor R67, the pin 4 of the chip U10, one end of the resistor R70, one end of the capacitor C54, and the A pole of the thyristor T5 are connected, the other end of the resistor R67 is connected with one end of the capacitor C67 and the cathode of the diode D67, the anode of the diode D67 is connected with the pin 7 of the transformer TR 67, the pin 8 of the transformer TR 67 is connected with the other end of the capacitor C67 and is connected with the signal GND _ 67, the pin 3 of the chip U67 is connected with one end of the capacitor C67, one end of the resistor R67, one end of the capacitor C67, the pin 2 of the chip U67, the other end of the resistor R67 is connected with the other end of the capacitor C67 and is connected with the GND _ 67, and the triode Q pole of the chip Q67, The D pole of a field effect transistor T3 is connected, the G pole of the field effect transistor T3 is connected with the other end of a resistor R70, a pin No. 4 of a chip U12 and one end of a capacitor C52, the other end of a capacitor C52 is connected with a pin No. 3 of a chip U12, a pin No. 4 of a chip U13 and one end of a capacitor C53, the other end of the capacitor C53 is connected with a pin No. 3 of a chip U13 and the S pole of a field effect transistor T3 and is connected with a signal GND _ FIELD SIGNAL, the pin No. 1 of the chip U FIELD SIGNAL is connected with one end of a resistor R FIELD SIGNAL and one end of a resistor R FIELD SIGNAL, the other end of the resistor R FIELD SIGNAL is connected with the cathode of a diode D FIELD SIGNAL, the anode of the diode D FIELD SIGNAL is connected with the pin No. 1 of a three-core pin base J FIELD SIGNAL, the one end of the pin No. 1 of the resistor R FIELD SIGNAL of the chip U FIELD SIGNAL and one end of the resistor R FIELD SIGNAL, the other end of the resistor R FIELD SIGNAL is connected with the cathode of the diode D FIELD SIGNAL, the anode of the three-core pin base J, Pin No. 2 of chip U13, the other end of resistor R72, and one end of varistor R75 are connected, the other end of varistor R75 is connected to pin No. 3 of three-pin header J14, pin No. 3 of chip U11 is connected to one end of capacitor C55 and one end of resistor R76, the other end of capacitor C54 is connected to the other end of capacitor C55 and to signal GND _ FIELD SIGNAL, the other end of resistor R76 is connected to one end of resistor R77, and the S-pole of fet T77, the G-pole of fet T77 is connected to resistor R77, the other end of resistor R77 is connected to pin No. 6 of chip U77, the D-pole of fet T77 is connected to the anode of diode D77, pin No. 10 of transformer TR 77, the cathode of diode D77 is connected to the anode of diode D77, the other end of diode D77 is connected to the cathode of resistor R77, the other end of resistor R77, and the other end of resistor R36108 are connected to one end of resistor R77, One end of a capacitor C56 is connected with a G pole of a thyristor T5, the other end of a resistor R77 is connected with the other end of a resistor R78, the other end of a resistor R108, the other end of a capacitor C56 and a K pole of a thyristor T5 and is connected with a signal GND _ FIELD SIGNAL, a pin 4 of a chip U11 is connected with one end of a resistor R109 and one end of a capacitor C76, the other end of the resistor R109 is connected with a pin 8 of the chip U11 and one end of a capacitor C75, the other end of the capacitor C75 is connected with the other end of a capacitor C76 and a pin 5 of a chip U11 and is connected with a signal GND _ FIELD SIGNAL, a pin 6 of a transformer TR1 is connected with an anode of a diode D20, a cathode of the diode D20 is connected with one end of a capacitor C57, one end of a capacitor C58, one end of a resistor R81, a pin 1 of a two-core J15, a pin 1 of the two-core J15, a pin base 15 and a cathode of the resistor R3624, pin No. 5 of transformer TR1 is connected with the other end of capacitor C57, the other end of capacitor C58, the other end of resistor R81, pin No. 2 of two-core needle seat J15 and pin No. 2 of two-core needle seat J16 and is connected with GND _0 signal, pin No. 2 of two-core needle seat J17 is connected with the anode of diode D23 and the C pole of triode Q3, the B pole of triode Q3 is connected with the other end of resistor R84 and pin No. 4 of chip U15, the E pole of triode Q3 is connected with pin No. 3 of chip U15 and is connected with signal GND _0, pin No. 1 of chip U15 is connected with one end of resistor R85, the other end of resistor R85 is connected with pin No. 6 of six-core needle seat J18, pin No. 2 of chip U15 is connected with pin No. 2 of six-core J18 and is connected with signal GND 60, pin No. 2 of transformer TR1 is connected with the cathode of diode D21, one end of diode D21 is connected with the anode of capacitor C60 and one, Pin No. 2 of chip U14 is connected, pin No. 3 of chip U14 is connected with one end of capacitor C64, one end of resistor R83, pin No. 3 of six-core pin base J18 and is connected with power supply network-VCC, pin No. 3 of transformer TR1 and the other end of capacitor C59, the other end of capacitor C60, pin No. 2 of chip U14, the other end of capacitor C64, the other end of resistor R83, one end of capacitor C61, one end of capacitor C62, one end of capacitor C63, one end of resistor R82 are connected and is connected with GND signal, pin No. 1 of transformer TR1 and the anode of diode D22 are connected, the cathode of diode D22 and the other end of capacitor C61, the other end of capacitor C62, the other end of capacitor C63, the other end of resistor R82 and is connected with GND signal VCC, one end of capacitor C82 is connected with GND signal, the other end of capacitor C360 signal, pin No. 1 of six-core pin base, One end of a resistor R88 is connected with a power supply network VCC, the other end of the resistor R88 is connected with one end of a resistor R89, one end of a capacitor C66 and the R pole of a voltage-stabilizing triode T6, the A pole of the voltage-stabilizing triode T6 is connected with the other end of a resistor R89 and is connected with a signal GND, the K pole of the voltage-stabilizing triode T6 is connected with the other end of a capacitor C66, the pin No. 2 of a chip U10 and one end of a resistor R87, the other end of the resistor R87 is connected with the other end of the resistor R86 and the pin No. 1 of a chip U10, the pin No. 4 of a six-core pin base J18 is connected with one end of the resistor R90, one end of the capacitor C90 and one end of the capacitor C90, the other end of the capacitor C90 is connected with the other end of the resistor R90 and the anode of a voltage-stabilizing tube Z90, the cathode of the voltage-stabilizing tube Z90 is connected with the B pole of the triode Q90, the E pole of the power supply, The cathode of a voltage regulator tube Z7 is connected, the anode of a voltage regulator tube Z7 is connected with the B pole of a triode Q5, the C pole of a triode Q5 is connected with one end of a resistor R94, a pin No. 1 of a transformer TR2, the other end of a resistor R94 is connected with the C pole of a triode Q4, the E pole of a triode Q5 is connected with the E pole of a triode Q7 and is connected with a GND signal, a pin No. 5 of a six-core pin base J7 is connected with one end of the resistor R7, one end of a capacitor C7 and one end of a capacitor C7, the other end of the capacitor C7 is connected with the other end of the resistor R7 and the anode of the voltage regulator tube Z7, the cathode of the voltage regulator tube Z7 is connected with the B pole of the triode Q7, the other end of the resistor R7 is connected with the other end of the resistor R7 and the other end of the resistor TR 7, the other end of the resistor TR 7 and the other end of the transistor TR 7, the resistor R7 and the other end of the transistor TR 7 are connected with the B pole, pin 3 of transformer TR2 is connected to the anode of diode D24, the anode of D25 and one end of resistor R96, the other end of diode D24 is connected to the E pole of transistor Q8, the cathode of regulator tube Z10 and one end of capacitor C71, the cathode of diode D25 is connected to the other end of resistor R96 and the B pole of transistor Q96, the other end of capacitor C96 is connected to the anode of regulator tube Z96 and one end of resistor R96, the other end of resistor R96 is connected to the anode of regulator tube Z96 and pin 1 of two-core pin base J96, the cathode of regulator tube Z96 is connected to one end of resistor R96 and the cathode of regulator tube Z96, pin 4 of transformer TR 96 is connected to the C pole of transistor Q96, the anode of diode Z96 and pin 2 of two-core J96, the pin 7 of transformer TR 96 is connected to the anode of diode D96, the anode of D96 and one end of resistor R96 and the other end of resistor R96 are connected to the anode of regulator tube E96 and the diode D96, The cathode of a voltage regulator tube Z13 and one end of a capacitor C72 are connected, the cathode of a diode D27 is connected with the other end of a resistor R99 and the B pole of a triode Q9, the other end of the capacitor C72 is connected with the anode of the voltage regulator tube Z13 and one end of a resistor R100, the other end of the resistor R100 is connected with the anode of a voltage regulator tube Z14 and the pin No. 1 of a two-core pin base J20, the cathode of the voltage regulator tube Z14 is connected with one end of a resistor R101 and the cathode of a voltage regulator tube Z15, the pin No. 8 of a transformer TR2 is connected with the C pole of a triode Q9, the anode of a voltage regulator tube Z15 and the pin No. 2 of a two-core pin base J20, the pin No. 5 of the transformer TR 56 is connected with the anode of a diode D28 and the anode of a D29 and one end of a resistor R102, the other end of a diode D28 is connected with the E pole of a triode Q10, the cathode of a voltage regulator tube Z16 and one end of a capacitor C73, the cathode of a resistor R102 and the other end of, One end of a resistor R103 is connected, the other end of the resistor R103 is connected with the anode of a voltage regulator tube Z17 and the pin No. 1 of a two-core needle seat J21, the cathode of the voltage regulator tube Z17 is connected with one end of a resistor R104 and the cathode of the voltage regulator tube Z18, the pin No. 6 of a transformer TR2 is connected with the C pole of a triode Q10, the anode of the voltage regulator tube Z18 and the pin No. 2 of the two-core needle seat J21, the pin No. 9 of the transformer TR2 is connected with the anode of a diode D30, the anode of a diode D31 and one end of a resistor R105, the other end of a diode D31 is connected with the E pole of a triode Q11, the cathode of the voltage regulator tube Z19 and one end of a capacitor C74, the cathode of the diode D31 is connected with the other end of a resistor R105 and the B pole of a triode Q11, the other end of a capacitor C74 is connected with the anode of a voltage regulator tube Z19 and one end of a resistor R106, the other end of a voltage regulator tube Z365, the anode of, The cathode of a voltage regulator tube Z21 is connected, and a pin No. 10 of a transformer TR2 is connected with the C pole of a triode Q11, the anode of a voltage regulator tube Z21 and a pin No. 2 of a two-core needle seat J22.
6. The whole circuit principle of the three-phase 380V power supply manual-arc inverter welding machine according to claim 5 is characterized in that: the circuit structure of the capacitive filter plate is one end of a capacitor C93 and one end of a capacitor C93, one end of the capacitor C93, the other end of the capacitor C93, the, The other end of the capacitor C85, the other end of the capacitor C88, and the other end of the capacitor C84 are connected.
7. The whole circuit principle of the three-phase 380V power supply manual-arc inverter welding machine according to claim 6 is characterized in that: the EMC board (6) comprises a common mode inductor L1, the common mode inductor L1 has 6 ports, a port No. 1 of a common mode inductor L1 is connected with one end of a capacitor C34, one end of a capacitor C37, one end of a capacitor C39 and an input pad A _ IN, a port No. 2 of the common mode inductor L1 is connected with one end of a capacitor C35, the other end of a capacitor C37, one end of a capacitor C38 and an input pad B _ IN, a port No. 3 of the common mode inductor L1 is connected with one end of a capacitor C36 and the other end of a capacitor C38, the other end of a capacitor C39 and an input pad C _ IN, the other end of a capacitor C34 is connected with the other end of a capacitor C35 and the other end of a capacitor C36, a port No. 4 of the common mode inductor L1 is connected with one end of a capacitor C40 and an output pad A _ OUT, a port No. 5 of a port of a common mode inductor L1 is connected with one end of a capacitor C41 and an output pad B _ OUT, a port of, the other end of the capacitor C40 is connected to the other end of the capacitor C41, the other end of the capacitor C42, one end of the capacitor C43, and one end of the capacitor C44, and the other end of the capacitor C43 and the other end of the capacitor C44 are connected to the ground pad J12.
8. The whole circuit principle of the three-phase 380V power supply manual-arc inverter welding machine according to claim 7 is characterized in that: the circuit structure of the output rectifying plate is that an output bonding pad J24 is connected with two anode ports of a diode D32, two anode ports of D33, two anode ports of D34, two anode ports of D35, an output bonding pad J23, one end of a resistor R110 and one end of a resistor R111 are connected, the other end of the resistor R110 is connected with one end of a capacitor C95, the other end of the resistor R111 is connected with one end of a capacitor C96, the other end of the capacitor C95 is connected with the other end of a capacitor C96, the cathode of the diode D32, the cathode of a diode D33, the cathode of the diode D34 and the cathode of the diode D35.
9. The whole circuit principle of the three-phase 380V power supply manual-arc inverter welding machine according to claim 8 is characterized in that: the circuit structure of the absorbing plate is that an input pad J26 is connected with a voltage dependent resistor R114, a cathode of a diode D37, an anode of a diode D36 and one end of a capacitor C97, an anode of a diode D37 is connected with one end of a resistor R113 and one end of a capacitor C100, a cathode of a diode D36 is connected with one end of a resistor R112 and one end of a capacitor C99, the other end of the voltage dependent resistor R114 is connected with the other end of the capacitor C100, the other end of the resistor R113, the other end of a capacitor C99, the other end of the resistor R112 and one end of a capacitor C98, and the other end of a capacitor C98 is connected with the other end of a capacitor C97 and a support column J.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103929102A (en) * 2013-04-17 2014-07-16 济南田中工贸有限公司 Variable-frequency input inversion type direct-current motor driving controller
CN104682691A (en) * 2015-02-11 2015-06-03 上海广为焊接设备有限公司 EMC solution for inverter welding machine
CN106735742A (en) * 2016-12-22 2017-05-31 浙江肯得机电股份有限公司 It is a kind of that there are six anti-and good striking performance inverter argon arc welding machines
JP2018125800A (en) * 2017-02-03 2018-08-09 株式会社ダイヘン Communication system, and welding system
CN109352136A (en) * 2018-12-05 2019-02-19 浙江肯得机电股份有限公司 A kind of IGBT contravariant argon arc welding machine of more welding methods

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103929102A (en) * 2013-04-17 2014-07-16 济南田中工贸有限公司 Variable-frequency input inversion type direct-current motor driving controller
CN104682691A (en) * 2015-02-11 2015-06-03 上海广为焊接设备有限公司 EMC solution for inverter welding machine
CN106735742A (en) * 2016-12-22 2017-05-31 浙江肯得机电股份有限公司 It is a kind of that there are six anti-and good striking performance inverter argon arc welding machines
JP2018125800A (en) * 2017-02-03 2018-08-09 株式会社ダイヘン Communication system, and welding system
CN109352136A (en) * 2018-12-05 2019-02-19 浙江肯得机电股份有限公司 A kind of IGBT contravariant argon arc welding machine of more welding methods

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