A method, device, computer storage medium and system for controlling a drawn wire welding arc feature

Abstract

This invention discloses a method, device, computer storage medium, and system for controlling the arc characteristics of wire-drawing welding in the field of digital welding machine control technology. It aims to address the limitations of existing wire-drawing welding methods in adapting to different welding materials, welding gas ratios, and welding speeds. The method includes acquiring arc characteristic setpoints, the standard number of wire-drawing cycles, and the number of cycles after adjusting the arc characteristics. Based on the arc characteristic setpoints, it adjusts the peak current during the arc-ignition phase, the duration of the peak current, the base current during the arc-ignition phase, the first output current value during the short-circuit phase, the second output current value during the short-circuit phase, the rate of change of wire feed speed during the transition from negative wire drawing to positive wire feeding, and the rate of change of wire feed speed during the transition from positive wire feeding to negative wire drawing. This invention can more flexibly adapt to different welding materials and welding conditions, improving welding quality and reducing welding defects.

Description

Technical Field

[0001] This invention relates to the field of digital welding machine control technology, and in particular to a method, device, computer storage medium, and system for controlling the arc characteristics of wire drawing welding. Background Technology

[0002] Wire-drawing welding is an advanced arc welding technology that achieves a low-spatter, high-quality welding process by precisely controlling the wire feeding and drawing motions. This technology is widely used in automotive manufacturing, aerospace, and shipbuilding, effectively improving welding efficiency and reducing material waste. However, traditional wire-drawing welding methods still have limitations in adapting to different welding materials, welding gas ratios, and welding speeds. For example, the required arc characteristics may differ slightly when welding materials of different thicknesses, at different welding positions, or at different welding speeds. Therefore, improving the arc adaptability in wire-drawing welding is of great significance for practical production applications. Summary of the Invention

[0003] The purpose of this invention is to provide a method, apparatus, computer storage medium, and system for controlling the arc characteristics of wire drawing welding, so as to improve the arc characteristics of wire drawing welding, ensure that the wire drawing welding process can be more flexibly adapted to different welding materials and welding conditions, improve welding quality, and reduce welding defects.

[0004] To achieve the above objectives, the present invention is implemented using the following technical solution:

[0005] In a first aspect, the present invention provides a method for controlling the arc characteristics of wire drawing welding, comprising:

[0006] During the wire drawing welding process, the arc characteristic setting value P1, the standard number of wire drawing cycles P2, and the number of cycles P3 after adjusting the arc characteristics are obtained.

[0007] Based on the arc characteristic setting value P1, adjust the peak current IP during the arcing stage, the duration T1 of the peak current IP, the base current IB during the arcing stage, the first output current value IA during the short circuit stage, the second output current value IC during the short circuit stage, the rate of change of wire feeding speed ACC1 during the process of switching from negative wire drawing to positive wire feeding, and the rate of change of wire feeding speed ACC2 during the process of switching from positive wire feeding to negative wire drawing.

[0008] Based on the arc characteristic setting value P1, the standard wire drawing cycle number P2, and the adjusted arc characteristic cycle number P3, the welding power source is controlled to periodically and alternately output welding current corresponding to the standard wire drawing parameters and welding current corresponding to the adjusted arc characteristic parameters, and the wire feeding mechanism is controlled to perform wire feeding and wire drawing actions accordingly.

[0009] By setting the arc characteristic settings, the current parameters during welding, such as peak value, base value, short-circuit current, and the action speed of the wire feeding mechanism, such as the switching rate of wire drawing and wire feeding, can be adjusted synchronously and precisely. In conjunction with the standard wire drawing cycle number and the cycle number after adjusting the arc characteristics, the power supply and wire feeding mechanism can be controlled to work alternately, thereby achieving precise control of the welding arc characteristics.

[0010] Furthermore, the rate of change of the wire feeding speed ACC1 during the process of switching from negative wire drawing to positive wire feeding is the acceleration value during the process of the wire feeding speed changing from the negative wire drawing speed value to the positive wire feeding speed value, and the rate of change of the wire feeding speed ACC2 during the process of switching from positive wire feeding to negative wire drawing is the acceleration value during the process of the wire feeding speed changing from the positive wire feeding speed value to the negative wire drawing speed value.

[0011] It was clarified that when the control system controls the wire feeding motor to switch between forward and reverse rotation, it is necessary to set or monitor two different acceleration indicators to ensure the smoothness of the wire feeding process or to meet specific process requirements.

[0012] Furthermore, in response to the positive adjustment of the arc characteristic setting value P1, the rate of change of wire feeding speed ACC1 during the process of switching from negative wire drawing to positive wire feeding, the peak current IP during the arcing stage, the duration T1 of the peak current IP, and the base current IB during the arcing stage are increased, while the rate of change of wire feeding speed ACC2 during the process of switching from positive wire feeding to negative wire drawing, the first output current value IA during the short circuit stage, and the second output current value IC during the short circuit stage are decreased.

[0013] When the system needs to enhance arc energy, i.e., when the arc characteristic setting value P1 is positively adjusted, the operating logic of the wire feeding mechanism is adjusted synchronously: during the wire feeding and arc ignition stage, the acceleration and current are increased to enhance the penetration depth and penetration force; during the wire drawing and short-circuiting stage, the acceleration and current are reduced to soften the transition and prevent spatter. This coordination ensures that the welding process maintains extremely high stability even under high energy input.

[0014] Furthermore, in response to the negative adjustment of the arc characteristic setting value P1, the rate of change of wire feeding speed ACC1 during the switch from negative wire drawing to positive wire feeding, the peak current IP during the arcing stage, the duration T1 of the peak current IP, and the base current IB during the arcing stage are reduced, while the rate of change of wire feeding speed ACC2 during the switch from positive wire feeding to negative wire drawing, the first output current value IA during the short circuit stage, and the second output current value IC during the short circuit stage are increased.

[0015] When the system needs to reduce arc energy, i.e., when the arc characteristic setting P1 is adjusted negatively, the reverse operation is executed simultaneously: during the wire feeding and arc ignition stage, the acceleration is reduced and the current is decreased to achieve a smooth weld; during the wire drawing and short-circuiting stage, the acceleration is increased and the current is increased, using mechanical inertia to assist in arc breaking and maintain the fluidity of the molten pool. This coordination ensures that burn-through is prevented and weld formation is guaranteed when welding thin plates or precision welding.

[0016] Furthermore, in response to the positive adjustment of the arc characteristic setting value P1, the increase in the rate of change of wire feeding speed ACC1 during the switch from negative wire drawing to positive wire feeding... The increase in peak current IP during the arcing stage The increase in the duration T1 of the peak current IP The increase in the base current IB during the arcing phase The decrease in the rate of change of wire feed speed ACC2 during the process of switching from positive to negative wire drawing. The amount of reduction in the first output current value IA during the short-circuit phase Δ, the amount of reduction in the second output current value IC during the short-circuit phase. λ1, λ2, λ3, λ4, λ5, λ6, and λ7 are preset scaling coefficients.

[0017] By using the adjustment of the arc characteristic setpoint P1 as the main control variable, and through seven preset proportional coefficients, the specific adjustment ranges of the wire feeding acceleration ACC1, ACC2, and current parameters at each stage are precisely calculated. This mathematical definition method realizes the transformation of welding process parameters from empirical adjustment to precise numerical calculation, ensuring a high degree of synchronization and precise matching between mechanical motion and electrical output during dynamic adjustment.

[0018] Furthermore, in response to the negative adjustment of the arc characteristic setting value P1, the decrease in the rate of change of wire feed speed ACC1 during the switch from negative wire drawing to positive wire feeding. The reduction in peak current IP during the arcing phase The amount of reduction in the duration T1 of the peak current IP The reduction in the base current IB during the arcing phase The increase in the rate of change of wire feeding speed ACC2 during the process of switching from positive to negative wire drawing. The increase in the first output current value IA during the short-circuit phase The increase in the second output current value IC during the short-circuit phase λ11, λ22, λ33, λ44, λ55, λ66, and λ77 are preset scaling coefficients.

[0019] Through the above technical solutions, the system can more precisely control the current, voltage, and wire feed speed during the arc welding process, thereby improving welding quality and efficiency. In practical applications, these parameters can be fine-tuned according to specific welding materials and process requirements to achieve ideal welding results. Furthermore, the system can dynamically adjust relevant parameters by monitoring the arc characteristics in real time during the welding process to cope with various changes that may occur, ensuring the stability of the welding process.

[0020] Furthermore, the peak current IP, the duration T1 of the peak current IP, the base current IB during the arcing stage, the first output current value IA during the short-circuit stage, the second output current value IC during the short-circuit stage, the rate of change of wire feeding speed ACC1 during the switch from negative wire drawing to positive wire feeding, the rate of change of wire feeding speed ACC2 during the switch from positive wire feeding to negative wire drawing, and each of the preset proportional coefficients are set according to the wire diameter, wire type, shielding gas type, and welding current value.

[0021] By flexibly adjusting these parameters, we can better adapt to the needs of different welding scenarios and improve welding efficiency and weld quality.

[0022] Secondly, the present invention also provides a wire-drawing welding arc feature device, comprising:

[0023] The acquisition module is used to acquire the arc characteristic setting value P1, the standard number of wire drawing cycles P2, and the number of cycles P3 after adjusting the arc characteristics.

[0024] The parameter adjustment module is used to adjust the peak current IP during the arcing stage, the duration T1 of the peak current IP, the base current IB during the arcing stage, the first output current IA during the short circuit stage, the second output current IC during the short circuit stage, the rate of change of wire feeding speed ACC1 during the process of switching from negative wire drawing to positive wire feeding, and the rate of change of wire feeding speed ACC2 during the process of switching from positive wire feeding to negative wire drawing, according to the arc characteristic setting value P1.

[0025] The output control module is used to control the welding power source to periodically and alternately output welding current corresponding to the standard wire drawing parameters and welding current corresponding to the parameters after adjusting the arc characteristics, according to the arc characteristic setting value P1, the standard wire drawing cycle number P2, and the adjusted arc characteristic cycle number P3, and to control the wire feeding mechanism to perform wire feeding and wire drawing actions accordingly.

[0026] Thirdly, the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the wire drawing welding arc characteristic control method described in any of the preceding inventions.

[0027] Fourthly, the present invention also provides a wire-drawing welding system, including a welding power source, a wire feeding mechanism, and a welding torch. The welding power source includes a control module, which is used to execute the arc characteristic control method for wire-drawing welding as described in any of the preceding claims. The wire feeding mechanism is electrically connected to the welding power source and is used to perform wire feeding and drawing actions according to the control of the welding power source. The welding torch is electrically connected to the welding power source and is used to ignite the arc and perform welding.

[0028] By precisely controlling the arc characteristics, high-quality welding can be achieved on a variety of materials and thicknesses. The control module can monitor and adjust the current, voltage, and wire feed speed during the welding process to ensure welding stability and consistency. The wire feeding mechanism adopts an advanced motor drive system to achieve precise control of wire feeding and drawing, thereby meeting the needs of different welding processes. The welding torch is compact in design and flexible in operation, adaptable to various welding angles and positions. In addition, the system has welding parameter storage and recall functions, allowing users to quickly adjust settings according to different welding tasks. During the welding process, the system can detect the arc status in real time and automatically adjust or stop welding in abnormal situations to ensure welding quality and operational safety. Through continuous optimization of control algorithms and mechanical structures, this wire drawing welding system can provide efficient and stable welding performance in various industrial applications.

[0029] Compared with existing technologies, the beneficial effects achieved by the present invention—a method, apparatus, computer storage medium, and system for controlling the arc characteristics of wire-drawing welding—are as follows: The present invention controls the periodic alternating output of the welding power source based on the arc characteristic setpoint P1, the standard wire-drawing cycle number P2, and the adjusted arc characteristic cycle number P3. This output corresponds to the welding current corresponding to the standard wire-drawing parameters and the welding current corresponding to the adjusted arc characteristic parameters. The wire feeding mechanism is then controlled to perform corresponding wire feeding and drawing actions. This periodic alternating output control method allows the welding process to alternate between standard and adjusted parameters. On the one hand, the standard parameters ensure the basic stability of the welding process; on the other hand, the adjusted parameters dynamically compensate and optimize the arc characteristics, avoiding the shortcomings of single-parameter welding which is difficult to adapt to changes in working conditions. Meanwhile, by setting the standard wire drawing cycle number P2 and the adjusted arc characteristic cycle number P3, the output ratio and duration of the standard parameters and the adjusted parameters can be flexibly controlled, realizing flexible adjustment of the arc characteristics during the wire drawing welding process. This allows the system to adapt to the working conditions of different welding materials, thicknesses, positions and speeds, effectively reducing welding spatter, improving weld formation and enhancing welding quality. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a waveform diagram of the positive adjustment cycle of the arc characteristics of a wire drawing welding arc characteristic control method provided in some embodiments of the present invention.

[0032] Figure 2 This is a flowchart of the positive adjustment cycle of the arc characteristics of a wire drawing welding arc characteristic control method provided in some embodiments of the present invention;

[0033] Figure 3 This is a waveform diagram of the negative adjustment cycle of the arc characteristics of a wire drawing welding arc characteristic control method provided in some embodiments of the present invention;

[0034] Figure 4 This is a flowchart of the negative adjustment cycle of the arc characteristics of a wire drawing welding arc characteristic control method in some embodiments provided by the present invention;

[0035] Figure 5 This is a waveform diagram of two standard drawing cycles and two positive adjustment cycles of arc characteristics in a wire drawing welding arc characteristic control method provided in some embodiments of the present invention. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use.

[0037] Example 1:

[0038] like Figure 1-5 As shown, this embodiment provides a method for controlling the arc characteristics of wire drawing welding, including:

[0039] During wire drawing welding, the arc characteristic setting value P1, the standard wire drawing cycle number P2, and the adjusted arc characteristic cycle number P3 are obtained. Before the welding process begins, the operator sets the arc characteristic setting value P1, the standard wire drawing cycle number P2, and the adjusted arc characteristic cycle number P3 according to the welding conditions. Among them, P1 is used to indicate the desired direction and degree of arc characteristic adjustment, and P2 and P3 are used to control the alternating output ratio of the standard wire drawing parameters and the adjusted parameters.

[0040] Based on the arc characteristic setting value P1, the peak current IP, the duration T1 of the peak current IP, the base current IB of the arc stage, the first output current IA of the short-circuit stage, the second output current IC of the short-circuit stage, the rate of change of wire feeding speed ACC1 during the switch from negative wire drawing to positive wire feeding, and the rate of change of wire feeding speed ACC2 during the switch from positive wire feeding to negative wire drawing are adjusted respectively. The peak current IP of the arc stage is used to control the peak energy of the arc, affecting the stiffness and penetration of the arc. The duration T1 of the peak current IP is used to control the maintenance time of the peak current, affecting the total input of arc energy. The base current IB of the arc stage is used to maintain the basic current for arc combustion, affecting the maintenance temperature of the molten pool and the stability of the arc. The first output current IA of the short-circuit stage is used to control the current rise rate and amplitude in the early stage of the short circuit, affecting the contact state between the molten droplet and the molten pool. The second output current IC of the short-circuit stage is used to control the current output in the later stage of the short circuit, affecting the smoothness of the molten droplet transition.

[0041] Based on the arc characteristic setting value P1, the standard wire drawing cycle number P2, and the adjusted arc characteristic cycle number P3, the control module controls the welding power source to periodically and alternately output welding current corresponding to the standard wire drawing parameters and welding current corresponding to the adjusted arc characteristic parameters, and controls the wire feeding mechanism to perform wire feeding and drawing actions accordingly. The control module also controls the welding power source to periodically and alternately output welding current corresponding to the standard wire drawing parameters and welding current corresponding to the adjusted arc characteristic parameters based on the setting values ​​of P1, P2, and P3, and controls the wire feeding mechanism to perform wire feeding and drawing actions accordingly. For example, as... Figure 5 As shown, P2=2 and P3=2 can be set, meaning that after outputting the standard wire drawing parameters for 2 cycles, the adjusted parameters for 2 cycles will be output, and so on. This periodic alternating output method ensures the basic stability of the welding process and achieves dynamic compensation and optimization of the arc characteristics.

[0042] In summary, the arc characteristic control method for wire drawing welding in this embodiment achieves dynamic adjustment of arc characteristics by adjusting the current parameters and duration of the arc-ignition and short-circuit stages during the wire drawing welding process, as well as optimizing the switching slope of the wire drawing and feeding speeds during the wire drawing welding process. At the same time, by periodically alternating the output of standard parameters and adjusted parameters, the welding system can dynamically adjust the welding parameters according to actual welding needs, thereby improving the adaptability and flexibility of the wire drawing welding arc.

[0043] In some embodiments, the wire feed speed change rate ACC1 during the switch from negative wire drawing to positive wire feeding is the acceleration value during the change of wire feed speed from the negative wire drawing speed value to the positive wire feeding speed value, and the wire feed speed change rate ACC2 during the switch from positive wire feeding to negative wire drawing is the acceleration value during the change of wire feed speed from the positive wire feeding speed value to the negative wire drawing speed value. It can be understood that the wire feed speed change rate ACC1 during the switch from negative wire drawing to positive wire feeding, i.e., the acceleration value during the change of wire feed speed from the negative wire drawing speed value to the positive wire feeding speed value, affects the response speed and impact force of the welding wire being re-feeded into the molten pool after being retracted; the wire feed speed change rate ACC2 during the switch from positive wire feeding to negative wire drawing, i.e., the acceleration value during the change of wire feed speed from the positive wire feeding speed value to the negative wire drawing speed value, affects the speed at which the welding wire is retracted from the molten pool and the timing of the molten droplet detachment.

[0044] In some embodiments, in response to a positive adjustment of the arc characteristic setting P1, the rate of change of wire feed speed ACC1 during the switch from negative wire drawing to positive wire feeding, the peak current IP during the arcing phase, the duration T1 of the peak current IP, and the base current IB during the arcing phase are increased, while the rate of change of wire feed speed ACC2 during the switch from positive wire feeding to negative wire drawing, the first output current value IA during the short-circuit phase, and the second output current value IC during the short-circuit phase are decreased. Optionally, in response to a positive adjustment of the arc characteristic setting P1, the increase in the rate of change of wire feed speed ACC1 during the switch from negative wire drawing to positive wire feeding is... The increase in peak current IP during the arcing stage The increase in the duration T1 of the peak current IP The increase in the base current IB during the arcing phase The decrease in the rate of change of wire feed speed ACC2 during the process of switching from positive to negative wire drawing. The amount of reduction in the first output current value IA during the short-circuit phase Δ, the amount of reduction in the second output current value IC during the short-circuit phase. λ1, λ2, λ3, λ4, λ5, λ6, and λ7 are preset scaling coefficients.

[0045] Understandable, such as Figure 1 As shown, during wire drawing welding, when the arc characteristics are adjusted positively (+), it indicates that the arc rigidity needs to be enhanced, which is suitable for thin plate welding, high-speed welding, or vertical welding. At this time, the control module increases the wire feed speed transition slope ACC1 between negative wire drawing and positive wire feeding, the peak current value IP during the arc ignition stage, the peak current duration T1 during the arc ignition stage, and the base current value IB during the arc ignition stage. Simultaneously, it decreases the wire feed speed transition slope ACC2 between positive wire feeding and negative wire drawing, the first output current value IA during the short-circuit stage, and the first output current value IC during the short-circuit stage. Specifically, increasing ACC1 allows the welding wire to be fed into the molten pool faster after retraction, improving the arc rigidity and response speed; increasing the peak current value IP during the arc ignition stage, the peak current duration T1 during the arc ignition stage, and the base current value IB during the arc ignition stage... The peak current value duration T1 can enhance the peak energy of the arc and improve the penetration of the arc; increasing the base current value IB during the arcing stage can maintain a higher arc base current and keep the arc stable; reducing the wire feed speed transition slope ACC2 between positive wire feed and negative wire pull can slow down the speed at which the welding wire is pulled back from the molten pool, avoiding arc elongation and instability caused by excessively fast pullback; reducing the first output current value IA and the first output current value IC during the short circuit stage can reduce the current output during the short circuit stage, avoiding spatter caused by excessive current during the short circuit transition.

[0046] In some embodiments, in response to a negative adjustment of the arc characteristic setting P1, the rate of change of wire feed speed ACC1 during the switch from negative wire drawing to positive wire feeding, the peak current IP during the arcing phase, the duration T1 of the peak current IP, and the base current IB during the arcing phase are reduced, while the rate of change of wire feed speed ACC2 during the switch from positive wire feeding to negative wire drawing, the first output current value IA during the short-circuit phase, and the second output current value IC during the short-circuit phase are increased. Optionally, in response to a negative adjustment of the arc characteristic setting P1, the reduction in the rate of change of wire feed speed ACC1 during the switch from negative wire drawing to positive wire feeding is... The reduction in peak current IP during the arcing phase The amount of reduction in the duration T1 of the peak current IP The reduction in the base current IB during the arcing phase The increase in the rate of change of wire feeding speed ACC2 during the process of switching from positive to negative wire drawing. The increase in the first output current value IA during the short-circuit phase The increase in the second output current value IC during the short-circuit phase λ11, λ22, λ33, λ44, λ55, λ66, and λ77 are preset scaling coefficients.

[0047] Understandable, such as Figure 3 As shown, during wire drawing welding, when the arc characteristic is adjusted negatively (-), it indicates that the arc rigidity needs to be reduced, which is suitable for thick plate welding, slow welding, or vertical downward welding. At this time, the control module reduces the wire feed speed transition slope ACC1 between negative wire drawing and positive wire feeding, the peak current value IP during the arcing stage, the peak current value duration T1 during the arcing stage, and the base current value IB during the arcing stage. Simultaneously, it increases the wire feed speed transition slope ACC2 between positive wire feeding and negative wire drawing, the first output current value IA during the short-circuit stage, and the first output current value IC during the short-circuit stage. Specifically, reducing the wire feed speed transition slope ACC1 between negative wire drawing and positive wire feeding allows the welding wire to be slowly fed into the molten pool after retraction, reducing the impact on the molten pool; reducing the arc... The peak current value IP of the arcing stage and the duration T1 of the peak current value of the arcing stage can weaken the peak energy of the arc and reduce the penetration force of the arc; reducing the base current value IB of the arcing stage can reduce the arc base current and make the arc softer; increasing the wire feeding speed transition slope ACC2 between positive wire feeding and negative wire pulling can make the welding wire retract from the molten pool faster and promote droplet detachment; increasing the first output current value IA and the first output current value IC of the short circuit stage can enhance the electromagnetic contraction force of the short circuit stage, promote the smooth transition of the droplet, and avoid poor droplet transition caused by insufficient arc energy.

[0048] In some embodiments, the peak current IP, the duration T1 of the peak current IP, the base current IB during the arcing phase, the first output current IA during the short-circuit phase, the second output current IC during the short-circuit phase, the rate of change of wire feed speed ACC1 during the switch from negative wire drawing to positive wire feeding, the rate of change of wire feed speed ACC2 during the switch from positive wire feeding to negative wire drawing, and each of the preset proportional coefficients are set according to the wire diameter, wire type, shielding gas type, and welding current value. It can be understood that the base values ​​of the above parameters (i.e., IP, T1, IB, IA, IC, ACC1, ACC2) and each proportional coefficient (λ1 to λ7, λ11 to λ77) can all be preset according to the wire type, wire diameter, shielding gas type, and welding current value. For example, different reference parameters and proportional coefficients can be set for carbon steel welding and aluminum alloy welding due to their differences in thermophysical properties; different reference parameters and proportional coefficients are also required for welding wires of different diameters, such as 1.0 mm and 1.2 mm, which have different inertial masses and droplet transfer characteristics; and different reference parameters and proportional coefficients are also required for shielding gases of different compositions, which have different arc characteristics and droplet transfer morphologies.

[0049] Example 2:

[0050] This embodiment provides a device for identifying the arc characteristics of wire drawing welding, including:

[0051] The acquisition module is used to acquire the arc characteristic setting value P1, the standard wire drawing cycle number P2, and the cycle number P3 after adjusting the arc characteristics. In specific implementation, the acquisition module can receive the setting value input by the operator through the human-machine interface, or read the preset setting value from the host computer or external storage device through the communication interface.

[0052] The parameter adjustment module is used to adjust the peak current IP, the duration T1 of the peak current IP, the base current IB of the arcing stage, the first output current IA of the short-circuit stage, the second output current IC of the short-circuit stage, the rate of change of wire feeding speed ACC1 during the switching from negative wire drawing to positive wire feeding, and the rate of change of wire feeding speed ACC2 during the switching from positive wire feeding to negative wire drawing, according to the arc characteristic setting value P1. The specific adjustment logic of the parameter adjustment module is the same as the method described in Embodiment 1, and will not be repeated here.

[0053] The output control module is used to control the welding power source to periodically and alternately output welding current corresponding to the standard wire drawing parameters and welding current corresponding to the adjusted arc characteristics parameters, based on the arc characteristic setting value P1, the standard wire drawing cycle number P2, and the adjusted arc characteristic cycle number P3. It also controls the wire feeding mechanism to perform corresponding wire feeding and drawing actions. The specific control logic of the output control module is consistent with the method described in Embodiment 1 and will not be repeated here.

[0054] In summary, the wire drawing welding arc characteristic device in this embodiment is based on the same inventive concept as that in Embodiment 1. This device can be integrated into the control module of the welding power source, including an acquisition module, a parameter adjustment module, and an output control module. The collaborative adjustment mechanism in Embodiment 1 enables this device to automatically match appropriate arc characteristics according to the welding conditions.

[0055] Example 3:

[0056] This embodiment provides a computer-readable storage medium storing a computer program thereon. When executed by a processor, the computer program implements the steps of the wire drawing welding arc characteristic control method described in any one of Embodiment 1. It is understood that this embodiment, based on the same inventive concept as other embodiments, introduces a computer-readable storage medium storing a computer program. This storage medium can be any medium capable of storing program code, such as ROM, RAM, magnetic disk, or optical disk, or it can be a medium that provides program code via a network, such as a server or cloud storage.

[0057] Example 4:

[0058] This embodiment provides a wire-drawing welding system, including a welding power source, a wire feeding mechanism, and a welding torch. The welding power source includes a control module for executing the wire-drawing welding arc characteristic control method as described in any one of Embodiments 1. The wire feeding mechanism is electrically connected to the welding power source and is used to perform wire feeding and drawing actions according to the control of the welding power source. The welding torch is electrically connected to the welding power source and is used to ignite the arc and perform welding. It is understood that this embodiment introduces a wire-drawing welding system based on the same inventive concept as other embodiments. In specific applications, the system can be configured as an integrated structure or a split structure. The welding power source, wire feeding mechanism, and welding torch can be connected via cables and signal lines.

[0059] Compared with existing technologies, this invention can adapt to different welding materials, thicknesses, positions, and speeds, effectively reducing welding spatter, improving weld formation, and enhancing welding quality. Simultaneously, by introducing quantitative adjustment formulas and preset proportional coefficients, the complexity of parameter adjustment for operators is simplified, improving the convenience and consistency of control. The technical solution of this invention can be widely applied to automated welding equipment in fields such as automotive manufacturing, aerospace, and shipbuilding.

[0060] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0061] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0062] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A method for controlling the arc characteristics of wire drawing welding, characterized in that, include: During the wire drawing welding process, the arc characteristic setting value P1, the standard number of wire drawing cycles P2, and the number of cycles P3 after adjusting the arc characteristics are obtained. Based on the arc characteristic setting value P1, adjust the peak current IP, the duration T1 of the peak current IP, the base current IB of the arc stage, the first output current value IA of the short circuit stage, the second output current value IC of the short circuit stage, the rate of change of wire feeding speed ACC1 during the process of switching from negative wire drawing to positive wire feeding, and the rate of change of wire feeding speed ACC2 during the process of switching from positive wire feeding to negative wire drawing. Based on the arc characteristic setting value P1, the standard wire drawing cycle number P2, and the adjusted arc characteristic cycle number P3, the welding power source is controlled to periodically and alternately output welding current corresponding to the standard wire drawing parameters and welding current corresponding to the adjusted arc characteristic parameters, and the wire feeding mechanism is controlled to perform wire feeding and wire drawing actions accordingly.

2. The method for controlling the arc characteristics of wire drawing welding according to claim 1, characterized in that, The rate of change of the wire feeding speed ACC1 during the process of switching from negative wire drawing to positive wire feeding is the acceleration value during the process of the wire feeding speed changing from the negative wire drawing speed value to the positive wire feeding speed value, and the rate of change of the wire feeding speed ACC2 during the process of switching from positive wire feeding to negative wire drawing is the acceleration value during the process of the wire feeding speed changing from the positive wire feeding speed value to the negative wire drawing speed value.

3. The method for controlling the arc characteristics of wire drawing welding according to claim 1, characterized in that, In response to the positive adjustment of the arc characteristic setting value P1, the rate of change of wire feed speed ACC1 during the switching from negative wire drawing to positive wire feeding, the peak current IP during the arcing stage, the duration T1 of the peak current IP, and the base current IB during the arcing stage are increased, while the rate of change of wire feed speed ACC2 during the switching from positive wire feeding to negative wire drawing, the first output current value IA during the short circuit stage, and the second output current value IC during the short circuit stage are decreased.

4. The method for controlling the arc characteristics of wire drawing welding according to claim 1, characterized in that, In response to the negative adjustment of the arc characteristic setting value P1, the rate of change of wire feed speed ACC1 during the switch from negative wire drawing to positive wire feeding, the peak current IP during the arcing stage, the duration T1 of the peak current IP, and the base current IB during the arcing stage are reduced, while the rate of change of wire feed speed ACC2 during the switch from positive wire feeding to negative wire drawing, the first output current value IA during the short circuit stage, and the second output current value IC during the short circuit stage are increased.

5. The method for controlling the arc characteristics of wire drawing welding according to claim 3, characterized in that, In response to the positive adjustment of the arc characteristic setting value P1, the increase in the rate of change of wire feed speed ACC1 during the switch from negative wire drawing to positive wire feeding. The increase in peak current IP during the arcing stage The increase in the duration T1 of the peak current IP The increase in the base current IB during the arcing phase The decrease in the rate of change of wire feed speed ACC2 during the process of switching from positive to negative wire drawing. The amount of reduction in the first output current value IA during the short-circuit phase Δ, the amount of reduction in the second output current value IC during the short-circuit phase. λ1, λ2, λ3, λ4, λ5, λ6, and λ7 are preset scaling coefficients.

6. The method for controlling the arc characteristics of wire drawing welding according to claim 4, characterized in that, In response to the negative adjustment of the arc characteristic setting value P1, the decrease in the rate of change of wire feed speed ACC1 during the switch from negative wire drawing to positive wire feeding. The reduction in peak current IP during the arcing phase The amount of reduction in the duration T1 of the peak current IP The reduction in the base current IB during the arcing phase The increase in the rate of change of wire feeding speed ACC2 during the process of switching from positive to negative wire drawing. The increase in the first output current value IA during the short-circuit phase The increase in the second output current value IC during the short-circuit phase λ11, λ22, λ33, λ44, λ55, λ66, and λ77 are preset scaling coefficients.

7. The method for controlling the arc characteristics of wire drawing welding according to claim 5 or 6, characterized in that, The peak current IP, the duration T1 of the peak current IP, the base current IB during the arcing stage, the first output current value IA during the short circuit stage, the second output current value IC during the short circuit stage, the wire feeding speed change rate ACC1 during the switch from negative wire drawing to positive wire feeding, and the wire feeding speed change rate ACC2 during the switch from positive wire feeding to negative wire drawing, as well as each of the preset proportional coefficients, are set according to the welding wire diameter, welding wire type, shielding gas type, and welding current value.

8. A device for identifying the arc characteristics of wire drawing welding, characterized in that, include: The acquisition module is used to acquire the arc characteristic setting value P1, the standard number of wire drawing cycles P2, and the number of cycles P3 after adjusting the arc characteristics. The parameter adjustment module is used to adjust the peak current IP during the arcing stage, the duration T1 of the peak current IP, the base current IB during the arcing stage, the first output current IA during the short circuit stage, the second output current IC during the short circuit stage, the rate of change of wire feeding speed ACC1 during the process of switching from negative wire drawing to positive wire feeding, and the rate of change of wire feeding speed ACC2 during the process of switching from positive wire feeding to negative wire drawing, according to the arc characteristic setting value P1. The output control module is used to control the welding power source to periodically and alternately output welding current corresponding to the standard wire drawing parameters and welding current corresponding to the parameters after adjusting the arc characteristics, according to the arc characteristic setting value P1, the standard wire drawing cycle number P2, and the adjusted arc characteristic cycle number P3, and to control the wire feeding mechanism to perform wire feeding and wire drawing actions accordingly.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method for controlling the arc characteristics of wire drawing welding as described in any one of claims 1 to 7.

10. A wire drawing welding system, characterized in that, The welding power source includes a welding power source, a wire feeding mechanism, and a welding torch. The welding power source includes a control module, which is used to execute the wire drawing and pulling welding arc characteristic control method as described in any one of claims 1 to 7. The wire feeding mechanism is electrically connected to the welding power source and is used to perform wire feeding and wire drawing actions according to the control of the welding power source. The welding torch is electrically connected to the welding power source and is used to ignite the arc and perform welding.

Images