A magnetron narrow gap welding system and control method

Abstract

The embodiment of the application provides a magnetic control narrow-gap welding system and a control method, and relates to the technical field of welding control. The magnetic control narrow-gap welding control method comprises the following steps: a plurality of welding process parameters are set before welding starts; after the welding starts, a plurality of process parameter feedback values are obtained, the plurality of feedback values comprising circuit parameters, magnetic field intensity, welding gun distance, welding speed, wire feeding speed and the like; welding control parameters are adjusted according to the plurality of feedback values, the welding control parameters comprising at least one of the following: welding gun distance parameters, magnetic field intensity parameters or wire feeding speed parameters; and the welding system is controlled to perform welding according to the adjusted welding control parameters. The closed-loop control mode is formed by using the plurality of feedback values for control, the welding process is controlled in cooperation with a plurality of parameters, and the problems of side wall incomplete fusion and asymmetric weld are solved. Moreover, historical welding process data can provide sufficient data support for optimizing process parameters, so that the weld quality is optimized.

Description

Technical Field

[0001] This application relates to the field of welding control technology, and in particular to magnetically controlled narrow gap welding systems and control methods. Background Technology

[0002] Titanium metal and titanium alloys possess high specific strength and toughness, excellent corrosion resistance, resistance to microbial adhesion, and creep resistance, making them important structural materials in marine engineering, aerospace, and biomedicine. Magnetically controlled narrow-gap TIG (Tungsten Inert Gas) welding is a highly efficient and high-quality welding method for welding thick (over 20mm) titanium metal and titanium alloys.

[0003] The magnetically controlled narrow-gap TIG welding process of thick plates is simultaneously affected by the gravity of the molten pool, Lorentz force, and droplet tension, which can easily lead to problems such as poor sidewall fusion and weld asymmetry. Moreover, especially when multi-layer and multi-pass welding is used, due to the rapid cooling rate of the liquid molten pool metal and the low thermal conductivity of titanium alloy, there are problems such as large welding stress and deformation, and uneven weld thickness between layers.

[0004] Optimizing the weld quality of magnetically controlled narrow-gap welding is the technical problem this application aims to solve. Summary of the Invention

[0005] The purpose of this application is to provide a magnetically controlled narrow gap welding system, control method, and computer-readable storage medium to optimize the weld quality of magnetically controlled narrow gap welding.

[0006] To achieve the above objectives, the embodiments of this application adopt the following technical solutions.

[0007] In a first aspect, embodiments of this application provide a magnetically controlled narrow gap welding control method, applied to a magnetically controlled narrow gap welding control system, the magnetically controlled narrow gap welding control method comprising:

[0008] Before welding begins, multiple welding process parameters are set. After welding begins, multiple process parameter feedback values ​​are obtained. The multiple process parameter feedback values ​​include circuit parameters and magnetic field strength.

[0009] Based on the feedback values ​​of the multiple process parameters, the welding control parameters are adjusted; the welding control parameters include at least one of the following: welding torch distance parameter, magnetic field strength parameter, or welding wire speed parameter;

[0010] The welding system is controlled to perform welding based on the adjusted welding control parameters.

[0011] Optionally, the circuit parameters include welding voltage and / or welding current;

[0012] The steps for adjusting the welding control parameters based on the feedback values ​​of the multiple process parameters include:

[0013] Adjust the welding torch distance parameters based on the magnetic field strength obtained during the welding process, and based on the welding voltage and / or welding current obtained during the welding process.

[0014] The steps of controlling the welding system to perform welding according to the adjusted welding control parameters include: controlling and adjusting the distance between the tungsten electrode of the welding torch and the weld seam of the workpiece according to the adjusted welding torch distance parameters.

[0015] Optionally, when the circuit parameters include welding voltage, the step of adjusting the welding control parameters based on the feedback values ​​of the plurality of process parameters includes:

[0016] The welding torch distance parameter is determined using the following formula:

[0017] ΔH 焊枪 = a1(U-U0)+b1(T-T0)

[0018] Where, ΔH 焊枪 U is the distance value that needs to be adjusted for the welding torch distance parameter, U is the welding voltage collected during the welding process, U0 is the welding voltage set by the welding power supply, T is the magnetic field strength collected during the welding process, T0 is the magnetic field strength set by the magnetic field generator, a1 is the first voltage influence factor, and b1 is the first magnetic field influence factor.

[0019] Optionally, the circuit parameters include welding voltage and / or welding current;

[0020] The steps for adjusting the welding control parameters based on the feedback values ​​of the multiple process parameters include:

[0021] Based on the magnetic field strength obtained during the welding process, and based on the welding voltage and / or welding current obtained during the welding process, adjust the magnetic field strength parameters, including adjusting the amplitude and frequency of the magnetic field;

[0022] The steps for controlling the welding system to perform welding according to the adjusted welding control parameters include:

[0023] Based on the magnetic field strength parameters, the magnetic field generator is controlled to adjust the magnetic field in real time.

[0024] Optionally, when the circuit parameters include welding voltage and welding current, the step of adjusting the welding control parameters based on the feedback values ​​of the plurality of process parameters includes:

[0025] The magnetic field strength parameters are determined using the following formula:

[0026] ΔT 磁场 = a2(U-U0)+b2H+c2A

[0027] Where, ΔT 磁场 The magnetic field strength parameter is the magnetic field strength value that needs to be adjusted, U is the welding voltage collected during the welding process, U0 is the welding voltage set by the welding power supply, H is the welding torch distance parameter value, A is the welding current collected during the welding process, a2 is the second voltage influence factor, b2 is the welding torch distance influence factor, and c2 is the current influence factor.

[0028] Optionally, the steps of setting multiple welding process parameters before welding begins include:

[0029] Obtain welding parameter settings; the welding parameter settings include welding wire speed settings and the relative speed between the welding torch and the workpiece being welded.

[0030] The wire feeder system is controlled to operate according to the wire speed setting value; the relative speed between the welding torch and the workpiece is controlled according to the relative speed value between the welding torch and the workpiece.

[0031] The circuit parameters include welding voltage and / or welding current; the step of adjusting the welding control parameters based on the feedback values ​​of the multiple process parameters includes:

[0032] Adjust the welding wire speed parameters based on the relative speed between the welding torch and the workpiece being welded, the circuit parameters collected during the welding process, and the magnetic field strength.

[0033] The steps for controlling the welding system to perform welding according to the adjusted welding control parameters include:

[0034] Based on the welding wire speed parameters, the wire feeding speed of the wire feeder system is controlled and adjusted.

[0035] Optionally, when the circuit parameters include welding voltage, the step of adjusting the welding control parameters based on the feedback values ​​of the plurality of process parameters includes:

[0036] The welding wire speed parameters are determined using the following formula:

[0037] V 送丝 =a3V 焊接 +b3(T-T0)+c3(U-U0)

[0038] Among them, V 送丝 V is the welding wire speed parameter. 焊接 Let T be the relative velocity between the welding torch and the workpiece being welded, T be the magnetic field strength collected during the welding process, T0 be the magnetic field strength set by the magnetic field generator, U be the welding voltage collected during the welding process, U0 be the welding voltage set by the welding power source, a3 be the welding speed influence factor, b3 be the second magnetic field influence factor, and c3 be the third voltage influence factor.

[0039] Optionally, the magnetically controlled narrow gap welding control method further includes:

[0040] After welding is completed, the welding conditions, welding quality results, and welding control parameters for that welding session are stored. If the welding quality results are qualified, the welding control parameters for that welding session are used as the welding parameter settings for the next welding session under the same welding conditions.

[0041] Secondly, embodiments of this application provide a computer-readable storage medium storing a computer program or instructions, which, when executed by a computer, implements the magnetically controlled narrow gap welding control method of the first aspect.

[0042] Thirdly, embodiments of this application provide a magnetically controlled narrow gap welding system, including a magnetic field generator, a welding power source, a welding torch system, a wire feeder system, a welding worktable, and a control system; the control system is electrically connected to the magnetic field generator, the welding power source, the welding torch system, and the wire feeder system respectively; the welding power source is used to form a circuit with the welding worktable, the workpiece to be welded, and the welding torch system; the control system is used to execute the magnetically controlled narrow gap welding control method of the first aspect.

[0043] Compared with the prior art, this application has the following advantages:

[0044] The magnetically controlled narrow-gap welding control method provided in this application utilizes multiple feedback values ​​to form a closed-loop control mechanism, resulting in excellent control performance. The process parameter feedback values ​​can include multiple welding process parameters such as welding torch distance, welding speed, and wire feed speed. This enables multi-parameter collaborative control of the welding process, and historical welding process data provides ample support for optimizing process parameters. For example, it can obtain effective parameter data to address issues such as sidewall incomplete fusion and weld asymmetry, thereby achieving better weld quality. Attached Figure Description

[0045] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0046] Figure 1 A schematic diagram of a magnetically controlled narrow-gap welding system provided in this application embodiment;

[0047] Figure 2 A flowchart of a magnetically controlled narrow gap welding control method provided in this application embodiment;

[0048] Figure 3 A flowchart illustrating the startup steps of a magnetically controlled narrow gap welding control method provided in this application embodiment;

[0049] Figure 4 A schematic diagram of a wire feeding speed control method for welding wire provided in an embodiment of this application;

[0050] Figure 5 This is a schematic diagram of a welding power source and magnetic field control method provided in an embodiment of this application. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only some embodiments of this application, not all embodiments. The components of the embodiments of this application described in the accompanying drawings can generally be arranged and designed in various different configurations.

[0052] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0053] In the description of this application, it should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0054] Existing magnetically controlled narrow gap welding systems lack effective control methods, making it difficult to guarantee the weld quality of magnetically controlled narrow gap welding.

[0055] To overcome the above problems, please refer to Figure 1 This application provides a magnetically controlled narrow-gap welding system, including a magnetic field generator, a welding power source (which may be a TIG high-frequency pulse welding power source), a welding torch system (which may integrate a welding current and voltage detection module, a welding distance or height detection module, a servo motor for controlling the welding distance or height, etc.), a wire feeder system, a welding worktable, and a control system (which may be a PLC control system). The straight line below the workpiece being welded represents the welding worktable, and the arc-shaped protrusion on the workpiece being welded represents the weld seam. Figure 1On the right side are the protective gas shield and the servo motors and driver assembly that control its movement. The welding torch system and the protective gas shield can move relatively independently. An encoder can be used to detect the welding speed, i.e., the relative speed between the welding torch and the workpiece being welded.

[0056] The control system is the core component and is electrically connected to the magnetic field generator, the welding power supply, the welding torch system, and the wire feeder system. The control system can also be connected to a touch screen host computer and is electrically connected to a driver assembly, which can also be connected to a servo motor in the welding torch system.

[0057] The welding power source forms a circuit with the welding worktable, the workpiece to be welded, and the welding torch system. The control system can control the frequency, voltage, and current of the TIG high-frequency pulse welding power source; it can control the frequency and amplitude of the magnetic field generator to control the magnetic field strength; and it can control the driver assembly and servo motor to control the height of the welding torch system and the protective gas shield. It can also communicate with a touchscreen host computer to set welding process parameters, monitor process data, save and retrieve data.

[0058] The magnetic field of this application achieves periodic oscillation of the electric arc and agitates the molten pool by periodically changing the magnetic field strength, thereby changing the direction of the molten pool's movement and realizing the weld formation shape. The magnetic field strength can be determined by the area of ​​the sine wave formed by the magnetic field frequency and amplitude; the lower the frequency and the larger the amplitude, the stronger the magnetic field strength.

[0059] The magnetically controlled narrow gap welding control system in this application is used to execute the following magnetically controlled narrow gap welding control method, which includes:

[0060] Step 0. Set multiple welding process parameters before welding begins; the welding process parameters to be set may include: welding voltage of the welding power source, magnetic field strength of the magnetic field generator, welding torch distance parameter setting, welding wire speed parameter setting, etc.

[0061] Step 1. After welding begins, acquire multiple process parameter feedback values; the process parameter feedback values ​​include circuit parameters and magnetic field strength (the magnetic field strength can be a single value, or the frequency and amplitude of the magnetic field as a set of values), and may also include welding torch distance parameter feedback values, welding torch and workpiece relative speed feedback values, and welding wire speed parameter feedback values, etc.

[0062] Step 2. Adjust the welding control parameters according to the feedback values ​​of the process parameters;

[0063] Step 3. Control the welding system to perform welding according to the adjusted welding control parameters.

[0064] refer to Figure 2During the welding process of the welding system, steps 1, 2, and 3 are executed cyclically, meaning that the welding of the welding system is continuously controlled based on the feedback values ​​of the process parameters.

[0065] The magnetically controlled narrow-gap welding control method provided in this application employs multi-parameter adjustment. All parameters involved in the adjustment (i.e., the parameters in step 2) can be fed back with feedback values ​​(in step 1). Some parameters can be both feedback values ​​and controlled welding parameters, such as welding torch distance, magnetic field strength, and welding wire speed. Utilizing multiple feedback values ​​forms a closed-loop control method, resulting in good control performance. Compared to single-variable control, multi-parameter collaborative control is more flexible and precise, and historical welding process data can provide ample data support for optimizing process parameters. For example, it can obtain effective parameter data to address sidewall incomplete fusion and weld asymmetry, thereby achieving better weld quality.

[0066] Before step 1, there is a welding system startup procedure. During startup, the system can start according to a series of set values, see reference. Figure 3 You can start it by following these steps:

[0067] Step 0-1. Obtain welding parameter settings; the welding parameter settings may include: the magnetic field strength set by the magnetic field generator, the welding voltage set by the welding power supply, and the welding torch distance parameter settings;

[0068] Step 0-2. Control the magnetic field generator to generate a magnetic field according to the magnetic field strength set by the magnetic field generator;

[0069] Steps 0-3. Based on the welding voltage set by the welding power source and the welding torch distance parameter setting, control the welding power source and welding system to start welding.

[0070] The settings mentioned above are the parameter values ​​corresponding to the startup. The welding torch distance parameter setting can refer to the initial distance between the welding torch tungsten electrode and the weld seam of the workpiece.

[0071] The circuit parameters in step 1 can be implemented in several ways: the circuit parameters may include welding voltage; the circuit parameters may include welding current; or the circuit parameters may include both welding voltage and welding current. Welding voltage can refer to the voltage of the welding power source.

[0072] For the welding control parameters in step 2, the welding control parameters may include one or more of the following: welding torch distance parameter, magnetic field strength parameter, and welding wire speed parameter. The welding torch distance parameter can refer to the distance between the welding torch and the workpiece being welded; the magnetic field strength parameter can refer to a combination of the frequency and amplitude of the magnetic field generated by the magnetic field generator, or a single value representing the magnetic field strength; and the welding wire speed parameter can refer to the wire feeding speed of the wire feeder system. The following lists three cases of welding control parameters:

[0073] (1) When the welding control parameters include the welding torch distance parameter, the subsequent step 3 may include controlling and adjusting the distance between the welding torch tungsten electrode and the weld seam of the workpiece according to the adjusted welding torch distance parameter.

[0074] (2) When the welding control parameters include the magnetic field strength parameter, the subsequent step 3 may include controlling the magnetic field generator to adjust the magnetic field in real time according to the magnetic field strength parameter.

[0075] (3) When the welding control parameters include the welding wire speed parameter, the subsequent step 3 may include controlling and adjusting the wire feeding speed of the wire feeder system according to the welding wire speed parameter.

[0076] For the first scenario described above, the welding torch distance parameters can be adjusted based on the welding current and magnetic field strength, the welding voltage and magnetic field strength, or both. One implementation method based on the welding voltage and magnetic field strength is to determine the welding torch distance parameters using the following formula:

[0077] ΔH 焊枪 = a1(U-U0)+b1(T-T0)

[0078] Where, ΔH 焊枪 U is the distance value that needs to be adjusted for the welding torch distance parameter, U is the welding voltage collected during the welding process, U0 is the welding voltage set by the welding power supply, T is the magnetic field strength collected during the welding process, T0 is the magnetic field strength set by the magnetic field generator, a1 is the first voltage influence factor, and b1 is the first magnetic field influence factor.

[0079] For example, if the welding torch distance parameter in the previous sampling period is H1, the distance value that needs to be adjusted based on the sampled welding torch distance parameter is ΔH. 焊枪 The adjusted welding torch distance parameter is H1 + ΔH 焊枪 According to the formula, if the distance between the welding torch and the workpiece is adjusted by adjusting the height of the welding torch, then: if U-U0 is positive, the welding torch needs to be raised; if U-U0 is negative, the welding torch needs to be lowered.

[0080] For the second scenario described above, the magnetic field strength parameter can be adjusted based on the welding current and magnetic field strength, or based on the welding voltage and magnetic field strength, or based on the welding current, welding voltage, and magnetic field strength. One implementation method based on the welding current, welding voltage, and magnetic field strength is to determine the magnetic field strength parameter according to the following formula:

[0081] ΔT 磁场 = a2(U-U0)+b2H+c2A

[0082] Where, ΔT 磁场 The magnetic field strength parameter is the magnetic field strength value that needs to be adjusted, U is the welding voltage collected during the welding process, U0 is the welding voltage set by the welding power supply, H is the welding torch distance parameter value, A is the welding current collected during the welding process, a2 is the second voltage influence factor, b2 is the welding torch distance influence factor, and c2 is the current influence factor.

[0083] For example, if the welding torch distance parameter in the previous sampling period is T1, the magnetic field generator can be adjusted based on ΔT. 磁场 The magnitude of the magnetic field can be adjusted by regulating the amplitude, and simultaneously, the amplitude and frequency can be adjusted to ultimately achieve a magnetic field strength of T1 + ΔT. 磁场 .

[0084] For the above-mentioned case (3), the wire speed parameters can be adjusted based on the wire speed parameters, welding current, and magnetic field strength; or based on the wire speed parameters, welding voltage, and magnetic field strength; or based on the wire speed parameters, welding current, welding voltage, and magnetic field strength. One implementation method based on the wire speed parameters, welding voltage, and magnetic field strength is to determine the magnetic field strength parameter according to the following formula:

[0085] V 送丝 =a3V 焊接 +b3(T-T0)+c3(U-U0)

[0086] Among them, V 送丝 V is the welding wire speed parameter. 焊接 Let T be the relative velocity between the welding torch and the workpiece being welded, T be the magnetic field strength collected during the welding process, T0 be the magnetic field strength set by the magnetic field generator, U be the welding voltage collected during the welding process, U0 be the welding voltage set by the welding power source, a3 be the welding speed influence factor, b3 be the second magnetic field influence factor, and c3 be the third voltage influence factor.

[0087] The above three scenarios can be combined into one embodiment, taking any three or any two of them. For example, after adjusting the welding torch distance parameter, the magnetic field strength parameter can be adjusted based on the welding torch distance parameter, and then the welding wire speed parameter can be adjusted based on the magnetic field strength parameter. Such multi-parameter coordinated control can ensure that the welding torch distance, magnetic field strength, and welding wire speed are all at a suitable level, with none of them being too large or too small, thereby obtaining better weld quality. See also... Figure 4 , Figure 5 The control process, Figure 4 This is a schematic diagram of a wire feeding speed control method for welding wire provided in an embodiment of this application. Figure 5 This is a schematic diagram of a welding power supply and magnetic field control method provided in an embodiment of this application, wherein the servo drive is a servo motor that adjusts the height of the welding torch, thereby affecting parameters such as voltage through the height.

[0088] After welding is completed, the welding conditions, welding quality results, and welding control parameters for that session can be stored. Welding conditions can include the material and thickness of the workpiece, the size and shape of the weld, etc.

[0089] If the welding quality result for that particular weld is satisfactory, then the welding control parameters for that weld will be used as the welding parameter settings for the next weld under the same conditions. This allows for continuous optimization of process parameters, laying the foundation for better welding results in the future.

[0090] Based on the above embodiments, this application also provides a computer-readable storage medium storing a computer program or instructions, which, when executed by a computer, implements the above-described magnetically controlled narrow gap welding control method.

[0091] In summary, this application provides a method to improve weld quality by implementing multi-parameter collaborative control to address issues such as incomplete sidewall fusion and weld asymmetry. Through feedback of magnetic field strength and welding voltage, the height of the welding torch is controlled in real-time via a closed loop, achieving adaptive control of the torch height. To address the issues of high welding deformation and stress in multi-layer, multi-pass welds, this application's embodiments achieve thickness control of multi-layer, multi-pass welds through adaptive control of wire speed, welding speed, and arc intensity. After welding begins, the welding wire is stably output at a set speed via a servo drive, and the welding speed and wire feed speed are detected in real-time by an encoder. Due to factors such as welding torch height adjustment, welding voltage instability caused by asymmetry between the tungsten electrode and the sidewalls, and varying magnetic field strengths affecting wire feed speed, the welding wire needs to adjust its feed speed in real-time based on feedback from detected welding speed, welding voltage, and magnetic field strength, comparing it with a welding process database to achieve adaptive control of the welding wire speed.

[0092] The apparatus and system embodiments described above are merely illustrative. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement these embodiments without any creative effort.

[0093] The above are merely preferred embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A magnetically controlled narrow-gap welding control method, characterized in that, A magnetically controlled narrow-gap welding control method is applied to a magnetically controlled narrow-gap welding control system, comprising: Before welding begins, multiple welding process parameters are set. After welding begins, multiple process parameter feedback values ​​are obtained. The multiple process parameter feedback values ​​include circuit parameters and magnetic field strength. The circuit parameters include welding voltage and / or welding current. Based on the feedback values ​​of the multiple process parameters, the welding control parameters are adjusted; the welding control parameters include at least one of the following: welding torch distance parameter, magnetic field strength parameter, or welding wire speed parameter; the welding torch distance parameter is adjusted based on the magnetic field strength obtained during the welding process, and based on the welding voltage and / or welding current obtained during the welding process. The welding system is controlled to perform welding according to the adjusted welding control parameters, including: controlling and adjusting the distance between the tungsten electrode of the welding torch and the weld seam of the workpiece according to the adjusted welding torch distance parameters; When the circuit parameters include welding voltage, the welding torch distance parameter is determined according to the following formula: ΔH 焊枪 =a1(U-U0)+b1(T-T0) Where, ΔH 焊枪 U is the distance value that needs to be adjusted for the welding torch distance parameter, U is the welding voltage collected during the welding process, U0 is the welding voltage set by the welding power supply, T is the magnetic field strength collected during the welding process, T0 is the magnetic field strength set by the magnetic field generator, a1 is the first voltage influence factor, and b1 is the first magnetic field influence factor.

2. A magnetically controlled narrow-gap welding control method, characterized in that, A magnetically controlled narrow-gap welding control method is applied to a magnetically controlled narrow-gap welding control system, comprising: Before welding begins, multiple welding process parameters are set. After welding begins, multiple process parameter feedback values ​​are obtained. The multiple process parameter feedback values ​​include circuit parameters and magnetic field strength. Based on the feedback values ​​of the multiple process parameters, the welding control parameters are adjusted; the welding control parameters include at least one of the following: welding torch distance parameter, magnetic field strength parameter, or welding wire speed parameter; The welding system is controlled to perform welding based on the adjusted welding control parameters. The circuit parameters include welding voltage and / or welding current; The steps for adjusting the welding control parameters based on the feedback values ​​of the multiple process parameters include: The magnetic field strength parameters are adjusted based on the magnetic field strength obtained during the welding process, and based on the welding voltage and / or welding current obtained during the welding process; adjusting the magnetic field strength parameters includes adjusting the amplitude and frequency of the magnetic field; The steps for controlling the welding system to perform welding according to the adjusted welding control parameters include: Based on the magnetic field strength parameters, the magnetic field generator is controlled to adjust the magnetic field in real time; When the circuit parameters include welding voltage and welding current, the magnetic field strength parameter is determined according to the following formula: ΔT 磁场 =a2(U-U0)+b2H+c2A Where, ΔT 磁场 The magnetic field strength parameter is the magnetic field strength value that needs to be adjusted, U is the welding voltage collected during the welding process, U0 is the welding voltage set by the welding power supply, H is the welding torch distance parameter value, A is the welding current collected during the welding process, a2 is the second voltage influence factor, b2 is the welding torch distance influence factor, and c2 is the current influence factor.

3. A magnetically controlled narrow-gap welding control method, characterized in that, A magnetically controlled narrow-gap welding control method is applied to a magnetically controlled narrow-gap welding control system, comprising: Before welding begins, multiple welding process parameters are set. After welding begins, multiple process parameter feedback values ​​are obtained. The multiple process parameter feedback values ​​include circuit parameters and magnetic field strength. Based on the feedback values ​​of the multiple process parameters, the welding control parameters are adjusted; the welding control parameters include at least one of the following: welding torch distance parameter, magnetic field strength parameter, or welding wire speed parameter; The welding system is controlled to perform welding based on the adjusted welding control parameters. The steps for setting multiple welding process parameters before welding begins include: Obtain welding parameter settings; the welding parameter settings include welding wire speed settings and the relative speed between the welding torch and the workpiece being welded. The wire feeder system is controlled to operate according to the wire speed setting value; the relative speed between the welding torch and the workpiece is controlled according to the relative speed value between the welding torch and the workpiece. The circuit parameters include welding voltage and / or welding current; the step of adjusting the welding control parameters based on the feedback values ​​of the multiple process parameters includes: Adjust the welding wire speed parameters based on the relative speed between the welding torch and the workpiece being welded, the circuit parameters collected during the welding process, and the magnetic field strength. The steps for controlling the welding system to perform welding according to the adjusted welding control parameters include: Based on the aforementioned wire speed parameters, the wire feeding speed of the wire feeder system is controlled and adjusted. When the circuit parameters include welding voltage, the welding wire speed parameter is determined according to the following formula: V 送丝 =a3V 焊接 +b3(T-T0)+c3(U-U0) Among them, V 送丝 V is the welding wire speed parameter. 焊接 Let T be the relative velocity between the welding torch and the workpiece being welded, T be the magnetic field strength collected during the welding process, T0 be the magnetic field strength set by the magnetic field generator, U be the welding voltage collected during the welding process, U0 be the welding voltage set by the welding power source, a3 be the welding speed influence factor, b3 be the second magnetic field influence factor, and c3 be the third voltage influence factor.

4. The magnetically controlled narrow gap welding control method as described in claim 3, characterized in that, The magnetically controlled narrow gap welding control method further includes: After welding is completed, the welding conditions, welding quality results, and welding control parameters for that welding session are stored. If the welding quality results are qualified, the welding control parameters for that welding session are used as the welding parameter settings for the next welding session under the same welding conditions.

5. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions, which, when executed by a computer, implement the magnetically controlled narrow gap welding control method as described in any one of claims 1-4.

6. A magnetically controlled narrow-gap welding system, characterized in that, The method includes a magnetic field generator, a welding power source, a welding torch system, a wire feeder system, a welding worktable, and a control system; the control system is electrically connected to the magnetic field generator, the welding power source, the welding torch system, and the wire feeder system respectively; the welding power source is used to form a circuit with the welding worktable, the workpiece to be welded, and the welding torch system; the control system is used to execute the magnetically controlled narrow gap welding control method according to any one of claims 1-4.

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