阅读说明：本技术 一种基于can通信的焊接系统及焊接方法 (Welding system and welding method based on CAN communication ) 是由 温宇锋 刘欣 范运洲 罗长跃 于 2021-09-01 设计创作，主要内容包括：本发明公开了一种基于CAN通信的焊接系统及焊接方法。其中焊接系统包括焊接电源、送丝机、焊枪以及遥控盒；焊接电源内设置主控制板、焊接输出控制电路、一号CAN收发器以及送丝机电源；其中焊接输出控制电路以及一号CAN收发器分别与主控制板相连；遥控盒包括MCU以及与MCU连接的人机交互界面、二号CAN收发器、送丝控制电路、焊枪控制电路和控制电源；焊枪配置有焊枪开关,焊枪开关与MCU相连；在焊接电源侧与送丝机侧之间设置一条包括多根芯线的一线式电缆,用于实现焊接输出控制电路与焊枪之间、一号CAN收发器与二号CAN收发器之间以及送丝机电源与控制电源之间的连接。本发明利于扩大作业半径,降低作业负荷,同时有效地保证了送丝控制精度,提高了焊接质量。(The invention discloses a welding system and a welding method based on CAN communication. The welding system comprises a welding power supply, a wire feeder, a welding gun and a remote control box; the welding power supply is internally provided with a main control board, a welding output control circuit, a first CAN transceiver and a wire feeder power supply; the welding output control circuit and the first CAN transceiver are respectively connected with the main control board; the remote control box comprises an MCU, a human-computer interaction interface, a second CAN transceiver, a wire feeding control circuit, a welding gun control circuit and a control power supply, wherein the human-computer interaction interface, the second CAN transceiver, the wire feeding control circuit, the welding gun control circuit and the control power supply are connected with the MCU; the welding gun is provided with a welding gun switch, and the welding gun switch is connected with the MCU; a one-line cable comprising a plurality of core wires is arranged between the welding power supply side and the wire feeder side and is used for realizing the connection between the welding output control circuit and the welding gun, between the first CAN transceiver and the second CAN transceiver and between the wire feeder power supply and the control power supply. The invention is beneficial to enlarging the working radius, reducing the working load, effectively ensuring the wire feeding control precision and improving the welding quality.)

1. A welding system based on CAN communication comprises a welding power supply, a wire feeder, a welding gun and a remote control box; wherein, the remote control box and the welding gun are arranged at the side of the wire feeder; it is characterized in that the preparation method is characterized in that,

the welding power supply is internally provided with a main control panel, a welding output control circuit, a first CAN transceiver and a wire feeder power supply; the welding output control circuit and the first CAN transceiver are respectively connected with the main control board;

the remote control box comprises an MCU (microprogrammed control unit), a human-computer interaction interface, a second CAN (controller area network) transceiver, a wire feeding control circuit, a welding gun control circuit and a control power supply, wherein the human-computer interaction interface, the second CAN transceiver, the wire feeding control circuit, the welding gun control circuit and the control power supply are connected with the MCU; the welding gun is provided with a welding gun switch, and the welding gun switch is connected with the MCU;

a one-line cable comprising a plurality of core wires is arranged between the welding power supply side and the wire feeder side;

the welding output control circuit is connected with the welding gun through a core wire, the first CAN transceiver is connected with the second CAN transceiver through two core wires, and the wire feeder power supply is connected with the control power supply through two core wires.

2. The CAN communication-based welding system of claim 1,

the welding system based on CAN communication also comprises an air supply device; the gas supply device comprises a protective gas cylinder, a gas supply pipeline, a gas supply electromagnetic control valve and a gas flow sensor;

the gas supply electromagnetic control valve and the gas flow sensor are arranged at the outlet of the protective gas cylinder;

the remote control box also comprises an air supply electromagnetic valve control circuit and an air flow sensor which are connected with the MCU;

wherein, send the solenoid valve control circuit of gas and link to each other with sending the solenoid valve of silk.

3. The CAN communication-based welding system of claim 1,

the remote control box also comprises an IC card read-write unit, wherein the IC card read-write unit is connected with the MCU.

4. The CAN communication-based welding system of claim 1,

and the wire feeder is provided with a mounting groove matched with the structure of the remote control box, and the remote control box is positioned in the mounting groove.

5. A welding system based on CAN communication comprises a welding power supply, a wire feeder, a welding gun and a remote control box; wherein, the remote control box and the welding gun are both arranged at the side of the wire feeder; it is characterized in that the preparation method is characterized in that,

the welding power supply is internally provided with a main control panel, a welding output control circuit, a first CAN transceiver and a wire feeder power supply, wherein the welding output control circuit and the first CAN transceiver are respectively connected with the main control panel;

the remote control box comprises an MCU (microprogrammed control unit), a human-computer interaction interface, a second CAN (controller area network) transceiver, a wire feeding control circuit, a welding gun control circuit and a control power supply, wherein the human-computer interaction interface, the second CAN transceiver, the wire feeding control circuit, the welding gun control circuit and the control power supply are connected with the MCU; the welding gun is provided with a welding gun switch, and the welding gun switch is connected with the MCU;

a one-line cable comprising a plurality of core wires is arranged between the welding power supply side and the wire feeder side; the welding output control circuit is connected with the welding gun through a core wire, and the wire feeder power supply is connected with the control power supply through two core wires;

the first CAN transceiver and the second CAN transceiver are both provided with wireless transmission modules and communicate through a wireless network.

6. The CAN communication-based welding system of claim 5,

the wireless transmission module comprises a WIFI module or a 5G module.

7. The CAN communication-based welding system of claim 5,

the welding system based on CAN communication also comprises an air supply device; the gas supply device comprises a protective gas cylinder, a gas supply pipeline, a gas supply electromagnetic control valve and a gas flow sensor;

the gas supply electromagnetic control valve and the gas flow sensor are arranged at the outlet of the protective gas cylinder;

the remote control box also comprises an air supply electromagnetic valve control circuit and an air flow sensor which are connected with the MCU;

wherein, send the solenoid valve control circuit of gas and link to each other with sending the solenoid valve of silk.

8. The CAN communication-based welding system of claim 5,

the remote control box also comprises an IC card read-write unit, wherein the IC card read-write unit is connected with the MCU.

9. The CAN communication-based welding system of claim 5,

and the wire feeder is provided with a mounting groove matched with the structure of the remote control box, and the remote control box is positioned in the mounting groove.

10. A CAN communication-based welding method based on the CAN communication-based welding system according to any one of claims 1 to 9, characterized by comprising the following welding steps:

s1, firstly, setting all welding parameters through a human-computer interaction interface of a remote control box, and sending the welding parameters to a main control board through CAN communication between a first CAN transceiver and a second CAN transceiver, wherein the main control board matches the welding parameters according to received information;

s2, when welding starts, a welding gun switch is turned on, the MCU receives a signal that the welding gun switch is turned on, and then sends an instruction to the main control panel to start welding through CAN communication between the first CAN transceiver and the second CAN transceiver;

the main control board sends an instruction to the welding output control circuit, and the welding output control circuit controls the welding current of the welding gun;

meanwhile, the main control board sends an instruction to the MCU through CAN communication between the first CAN transceiver and the second CAN transceiver, the MCU receives the instruction and controls the wire feeding control circuit to start simultaneously, and the wire feeder starts synchronous wire feeding;

s3, after welding is finished, closing a welding gun switch, receiving a signal of closing the welding gun switch by the MCU, and then sending an instruction to the main control panel to finish welding through CAN communication between the first CAN transceiver and the second CAN transceiver;

the main control board sends an instruction to the welding output control circuit, and the welding output control circuit stops acting;

meanwhile, the main control board sends an instruction to the MCU through CAN communication between the first CAN transceiver and the second CAN transceiver, the MCU receives the instruction and then controls the wire feeding control circuit to stop acting, and the wire feeder stops feeding wires.

Technical Field

The invention belongs to the technical field of welding control, and relates to a welding system and a welding method based on CAN communication.

Background

A welding system in the prior art includes a welding power source, a welding torch, a wire feeder, an air feeder, and the like. Wherein, an operation panel is arranged on the welding power supply to realize the control of the welding system.

In addition, the welding system in the prior art further comprises a remote control box, wherein the remote control box is installed on the side of the wire feeder, and a welder can conveniently adjust the parameters of the welding current and the welding voltage through the remote control box.

Because a plurality of cables such as the welding cable, the wire feeder control cable and the remote control box control cable are arranged between the welding power supply side and the wire feeder side, the number of cables is large, the cables are inconvenient to move when used in an environment of prolonging the cables, and the operation radius is not favorably enlarged.

In addition, in the welding system in the prior art, the wire feeding control circuit is arranged on the welding power supply side, when the welding system is used in an environment of prolonging the cable, the wire feeding control is unstable, the wire feeding control precision is reduced, and further the welding quality is influenced.

Disclosure of Invention

The invention aims to provide a welding system based on CAN communication, which is beneficial to enlarging the working radius, reducing the working load, effectively ensuring the wire feeding control precision and further improving the welding quality.

A welding system based on CAN communication comprises a welding power supply, a wire feeder, a welding gun and a remote control box;

wherein, the remote control box and the welding gun are both arranged at the side of the wire feeder;

the welding power supply is internally provided with a main control board, a welding output control circuit, a first CAN transceiver and a wire feeder power supply; the welding output control circuit and the first CAN transceiver are respectively connected with the main control board;

the remote control box comprises an MCU, a human-computer interaction interface, a second CAN transceiver, a wire feeding control circuit, a welding gun control circuit and a control power supply, wherein the human-computer interaction interface, the second CAN transceiver, the wire feeding control circuit, the welding gun control circuit and the control power supply are connected with the MCU; the welding gun is provided with a welding gun switch, and the welding gun switch is connected with the MCU;

a one-line cable comprising a plurality of core wires is arranged between the welding power supply side and the wire feeder side;

the welding output control circuit is connected with the welding gun through a core wire, the first CAN transceiver is connected with the second CAN transceiver through two core wires, and the wire feeder power supply is connected with the control power supply through two core wires.

In addition, the invention also provides another welding system based on CAN communication, which comprises a welding power supply, a wire feeder, a welding gun and a remote control box; wherein, the remote control box and the welding gun are both arranged at the side of the wire feeder;

the welding power supply is internally provided with a main control board, a welding output control circuit, a first CAN transceiver and a wire feeder power supply, wherein the welding output control circuit and the first CAN transceiver are respectively connected with the main control board;

the remote control box comprises an MCU, a human-computer interaction interface, a second CAN transceiver, a wire feeding control circuit, a welding gun control circuit and a control power supply, wherein the human-computer interaction interface, the second CAN transceiver, the wire feeding control circuit, the welding gun control circuit and the control power supply are connected with the MCU; the welding gun is provided with a welding gun switch, and the welding gun switch is connected with the MCU;

a one-line cable comprising a plurality of core wires is arranged between the welding power supply side and the wire feeder side; the welding output control circuit is connected with the welding gun through a core wire, and the wire feeder power supply is connected with the control power supply through two core wires;

the first CAN transceiver and the second CAN transceiver are both provided with wireless transmission modules and communicate through a wireless network.

In addition, the invention also provides a welding method based on CAN communication, which adopts the above mentioned welding system based on CAN communication, and the specific technical proposal is as follows:

a welding method based on CAN communication comprises the following welding steps:

s1, firstly, setting all welding parameters through a human-computer interaction interface of a remote control box, and sending the welding parameters to a main control board through CAN communication between a first CAN transceiver and a second CAN transceiver, wherein the main control board matches the welding parameters according to received information;

s2, when welding starts, a welding gun switch is turned on, the MCU receives a signal that the welding gun switch is turned on, and then sends an instruction to the main control panel to start welding through CAN communication between the first CAN transceiver and the second CAN transceiver;

the main control board sends an instruction to the welding output control circuit, and the welding output control circuit controls the welding current of the welding gun;

meanwhile, the main control board sends an instruction to the MCU through CAN communication between the first CAN transceiver and the second CAN transceiver, the MCU receives the instruction and controls the wire feeding control circuit to start simultaneously, and the wire feeder starts synchronous wire feeding;

s3, after welding is finished, closing a welding gun switch, receiving a signal of closing the welding gun switch by the MCU, and then sending an instruction to the main control panel to finish welding through CAN communication between the first CAN transceiver and the second CAN transceiver;

the main control board sends an instruction to the welding output control circuit, and the welding output control circuit stops acting;

meanwhile, the main control board sends an instruction to the MCU through CAN communication between the first CAN transceiver and the second CAN transceiver, the MCU receives the instruction and then controls the wire feeding control circuit to stop acting, and the wire feeder stops feeding wires.

The invention has the following advantages:

1. only one line type cable is needed to be arranged between the welding power supply side and the wire feeder side, so that the welding control and communication functions between the welding power supply side and the wire feeder side can be realized, the number of the cables is obviously reduced, the reduction of the operation load is facilitated, and the operation radius is enlarged.

2. CAN communication is adopted between the welding power supply side and the wire feeder side, so that the anti-interference performance is improved, and the expandability is strong.

3. The wire feeding control circuit is arranged in the remote control box at the side of the wire feeder, even if the welding operation is carried out in a larger operation radius, because the control cable between the wire feeding control circuit and the wire feeder is obviously shortened, the wire feeding control precision is high, and the welding quality is high.

4. The remote control box is used for realizing all settings of the welding power supply, so that the improvement of the operability is facilitated, and the operation is convenient and fast.

Drawings

Fig. 1 is a schematic structural diagram of a welding system based on CAN communication in embodiment 1 of the present invention;

fig. 2 is an electrical connection diagram of a welding system based on CAN communication in embodiment 1 of the present invention.

FIG. 3 is an electrical connection diagram of a welding system based on CAN communication in embodiment 2 of the present invention;

FIG. 4 is a schematic structural view of a branch cable retaining clip according to an embodiment of the present invention;

FIG. 5 is a schematic view of another side of the branch cable fixing clip according to the embodiment of the present invention;

fig. 6 is a schematic structural view of a drop cable retention clip assembly in accordance with an embodiment of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Welding power supply	14	Second CAN transceiver
2	Wire feeder	15	Wire feeding control circuit
				3	Welding gun	16	Welding gun control circuit
4	Remote control box	17	Control circuit of air supply electromagnetic valve
				5	Gas cylinder	18	Control power supply
6	Air supply pipeline	19	Welding gun switch
				7	Gas flow sensor	20	One-wire cable
8	Main control panel	21	First branch cable fixing clamp
				9	Welding output control circuit	22	No. two branch cable fixation clamp
10	First CAN transceiver	23	IC card read/write unit
				11	Wire feeder power supply	24	Mounting groove
12	MCU	25	Branch cable fixing clamp assembly
				13	Human-computer interaction interface	26	Arc-shaped depression bar

Detailed Description

The invention is described in further detail below with reference to the following figures and detailed description:

example 1

This embodiment 1 describes a welding system based on CAN communication.

As shown in fig. 1, the welding system based on CAN communication includes a welding power supply 1, a wire feeder 2, a welding torch 3, a remote control box 4, and a gas supply device. Wherein, the remote control box 4 and the welding gun 3 are both arranged at the side of the wire feeder.

The gas supply device comprises a protective gas cylinder 5, a gas supply pipeline 6, a gas supply electromagnetic control valve and a gas flow sensor 7. Wherein, the air supply electromagnetic control valve and the gas flow sensor 7 are arranged at the outlet of the protective gas cylinder 5.

The air-feeding solenoid-operated valve is used for opening and closing the gas cylinder 5 and is controlled by the air-feeding solenoid-operated valve control circuit described below.

The gas flow sensor 7 is used for realizing real-time detection of gas flow.

As shown in fig. 2, a main control board 8, a welding output control circuit 9, a CAN transceiver 1, and a wire feeder power supply 11 are provided in the welding power supply 1, wherein the wire feeder power supply 11 is configured to supply power to a wire feeder side.

The welding output control circuit 9 and the first CAN transceiver 10 are respectively connected to the main control board 8, the welding output control circuit 9 is used for controlling the magnitude of the welding current output to the welding gun, and the circuit is a known circuit structure and is not described herein again.

As shown in fig. 2, the remote control box 4 includes an MCU12, a human-computer interface 13, a CAN transceiver No. two 14, a wire feed control circuit 15, a welding gun control circuit 16, a gas feed solenoid valve control circuit 17, and a control power supply 18.

The air feeding electromagnetic valve control circuit 17 is connected with the wire feeding electromagnetic control valve and is used for realizing the on-off control of the wire feeding electromagnetic control valve.

The human-computer interaction interface 13, the second CAN transceiver 14, the wire feeding control circuit 15, the welding gun control circuit 16, the gas feeding electromagnetic valve control circuit 17 and the gas flow sensor 7 are respectively connected with the MCU12 and controlled by the MCU 12.

The welding gun 3 is provided with a welding gun switch 19, and the welding gun switch 19 is connected with the MCU12 and used for sending a switch signal to the MCU.

Further, a one-wire cable 20 including a plurality of core wires is provided between the welding power source side and the wire feeder side. Here, the welding power source side refers to the side where the welding power source 1 is located, and the wire feeder side refers to the side where the wire feeder 2 is located.

When the radius of the welding operation is large, the distance between the welding power source side and the wire feeder side tends to be long.

The present invention can realize the welding and communication functions between the welding power source side and the wire feeder side by the one-wire cable 20.

As shown in fig. 2, the number of core wires used in the one-wire cable 20 is five.

One core wire is used to connect the welding output control circuit 9 and the welding gun 3, and the welding output control circuit 9 can control the magnitude of the welding current of the welding gun 3 through the core wire, thereby realizing welding control.

Two core wires are arranged between the first CAN transceiver 10 and the second CAN transceiver 14, and the instruction communication between the main control board 8 and the MCU12 is completed through the CAN communication between the first CAN transceiver 10 and the second CAN transceiver 14.

Information is transmitted between the welding power supply side and the wire feeder side through CAN communication, and the anti-interference performance is obviously improved.

In addition, two cords are used to connect the wire feeder power supply 11 to the control power supply 18, wherein the wire feeder power supply 11 is used to provide power to the wire feeder side and to supply power to various components in the remote control box via the control power supply 18.

Since the wire feeding control circuit 15 is disposed on the wire feeder side in this embodiment, even when the radius of the welding operation is increased, the stability of the wire feeding can be ensured, thereby improving the wire feeding control accuracy and ensuring the welding quality.

As shown in fig. 1, on the welding power supply side, one short cable L1 is led from the welding output control circuit 9, and two short cores are led from the first CAN transceiver 10 and the wire feeder power supply 11, respectively, and these four cores are located on one short cable L2.

The present embodiment realizes the fixing of the cables L1 and L2 to the in-line cable 20 by means of the first branch cable fixing clip 21.

As shown in fig. 4 and 5, the first branch cable fixing clip 21 has two fixing holes a1, a2 at one end and one fixing hole A3 at the other opposite end. Wherein, the effect of each fixed orifices respectively is as follows:

one end of the cable L1 extends into the first branch cable fixing clamp 21 from the fixing hole A1, one end of the cable L2 extends into the first branch cable fixing clamp 21 from the fixing hole A2, and one end of the one-line cable 20 extends into the first branch cable fixing clamp 21 from the fixing hole A3.

In the first branch cable fixing clip 21, the cable L1 is connected to one core wire of the one-wire cable 20, and four core wires in the cable L2 are connected to four core wires in the one-wire cable 20 in a one-to-one correspondence.

As shown in fig. 1, on the wire feeder side, a short cable L3 is led out from the welding gun 3, and two short wires are led out from the CAN transceiver No. two 14 and the control power supply 18, respectively, and these four wires are located on a short cable L4.

The present embodiment realizes the fixing of the cables L3 and L4 to the in-line cable 20 by means of the second branch cable fixing clip 22. It should be noted that the second branch cable fixing clip 22 and the first branch cable fixing clip 21 have the same structure.

One end of the cable L3 extends into the second branch cable fixing clamp 22 from the fixing hole A1, one end of the cable L4 extends into the second branch cable fixing clamp from the fixing hole A2, and the other end of the one-line cable 20 extends into the second branch cable fixing clamp from the fixing hole A3.

In the second branch cable holder 22, the cable L3 is connected to one core wire (connected to the cable L1) of the one-wire cable 20, and four core wires in the cable L4 are connected to four core wires in the one-wire cable 20 in a one-to-one correspondence.

The connection and fixation of the one-line cable 20 to each short cable is well achieved by two branch cable fixing clips. Because this embodiment has adopted a line cable 20 to replace many cables, greatly reduced the operating load, do benefit to and enlarge the operation radius.

As shown in fig. 6, the first branch cable fixing clip 21 is composed of two symmetrical branch cable fixing clip assemblies 25. Wherein, two semicircular grooves B1, B2 are arranged at one end of the branch cable fixing clamp component 25.

In addition, a semicircular groove B3 is provided at the other opposite end of the drop cable fixing clip assembly 25.

Wherein, an arc-shaped pressing strip, such as an arc-shaped pressing strip 26, arranged along the radial direction of the groove is arranged in each semicircular groove.

When the two branch cable fixing clamp assemblies 25 are spliced, the semicircular grooves B1 of the two branch cable fixing clamp assemblies 25 are spliced to form a fixing hole A1, and the semicircular grooves B2 of the two branch cable fixing clamp assemblies 25 are spliced to form a fixing hole A2.

Similarly, the semicircular grooves B3 of the two drop cable fixing clip assemblies 25 are spliced to form the fixing holes A3.

In addition, due to the presence of the arc-shaped bead 26 in each semicircular groove, the fixation of the corresponding cable is achieved.

In addition, the remote control box 4 in this embodiment 1 further includes an IC card reading and writing unit 23, wherein the IC card reading and writing unit 23 is connected to the MCU 12. The IC card read-write unit 23 can identify welders, and functions of card punching, attendance checking and the like are achieved.

An installation groove 24 which is matched with the structure of the remote control box is arranged on the wire feeder 2, and the remote control box 4 is positioned in the installation groove 24.

Since the one-line cable 20 is arranged on the welding power supply side and the wire feeder side in the embodiment, compared with the existing multi-cable situation, the carrying load of a welder is greatly reduced; in addition, CAN communication has good anti-interference performance, and is beneficial to enlarging the operation radius.

Example 2

This embodiment 2 also describes a welding system based on CAN communication. In the welding system of the present embodiment 2, the above embodiment 1 can be referred to for the remaining features, except that the following features are different from those of the above embodiment 1.

As shown in fig. 3, in the embodiment 2, a wireless communication mode is adopted between the first CAN transceiver 10 and the second CAN transceiver 14, that is: the first CAN transceiver 10 and the second CAN transceiver 14 are both configured with wireless transmission modules.

The wireless transmission module comprises a WiFi module, a 4G or 5G module and the like, and wireless communication is realized through the wireless transmission module.

Since no core wire is used for connection between the first CAN transceiver 10 and the second CAN transceiver 14, there are three effective (actually usable) core wires in the one-wire cable 20, and the structure is simplified.

The welding system based on CAN communication in embodiment 2 CAN achieve the same technical effects as those in embodiment 1.

Example 3

This embodiment 3 describes a welding method based on CAN communication, which is performed based on the welding system based on CAN communication described in the above embodiment 1 or 2, and the welding method includes the following welding steps:

s1, all welding parameters (including parameters such as welding current and welding voltage) CAN be set through a human-computer interaction interface 13 of the remote control box 4 and are sent to a main control board 8 through CAN communication, and the main control board 8 is matched with the welding parameters according to received information.

S2, when welding starts, the welding gun switch 19 is turned on, the welding gun switch 19 sends a signal that the welding gun switch is turned on to the MCU, and the MCU12 sends an instruction to the main control board 8 to start welding through CAN communication after receiving the signal.

The main control board 8 sends a command to the welding output control circuit 9, and the welding output control circuit controls the output welding current.

Meanwhile, the main control board 8 sends an instruction to the MCU12 through CAN communication, and the MCU receives the instruction and then controls the wire feeding control circuit 15 to start up at the same time, so that the wire feeder starts to feed wires synchronously.

Wherein the welding current output of the welding output control circuit 9 needs to be synchronized with the wire feed speed.

During the welding process, the remote control box 4 is constantly in contact with the welding power supply 1 through CAN communication, exchanging information such as changes in welding timing, changes in parameters, real-time current, voltage, abnormal data, etc.

In addition, the MCU12 controls the opening of the air supply solenoid valve through the air supply solenoid valve control circuit 17 to supply air.

And S3, after welding is finished, closing the welding gun switch 19, receiving a welding gun switch closing signal by the MCU12, and then sending an instruction to the main control panel 8 to finish welding through CAN communication between the second CAN transceiver and the first CAN transceiver.

Main control board 8 sends a command to welding output control circuit 9, and welding output control circuit 9 stops operating.

Meanwhile, the main control board 8 sends an instruction to the MCU through the CAN communication between the first CAN transceiver and the second CAN transceiver, and the MCU receives the instruction and then controls the wire feeding control circuit 15 to stop, and the wire feeder stops feeding wires.

According to the welding method, all the settings of the welding power supply can be realized through the remote control box 4 on the side of the wire feeder in the embodiment, so that the improvement of the operability is facilitated, the operation is convenient and fast, and the working efficiency of the welding operation is further improved.

It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.