Fish scale pattern welding control method and device and storage medium

Abstract

The invention discloses a fish scale pattern welding control method and device and a storage medium in the technical field of gas metal arc welding, and the method comprises the steps that when the actual pulse welding voltage is larger than the preset pulse welding uniformization voltage, the switching wire feeding speed is delayed, the switching slope is reduced, and the pulse welding uniformization voltage is obtained; when the actual pulse welding voltage is smaller than or equal to the preset pulse welding uniformization voltage, the wire feeding speed is switched in advance, and the switching slope is increased; and when the difference value between the pulse welding wire feeding speed and the direct-current short-circuit wire feeding speed is larger than a preset difference value threshold value, the wire feeding speed is delayed to be switched, and the switching slope is reduced, and when the difference value between the pulse welding wire feeding speed and the direct-current short-circuit wire feeding speed is smaller than the preset difference value threshold value, the wire feeding speed is switched in advance, and the switching slope is reduced. The technical problems that during direct-current short-circuit switching, the welding wire does not reach the arc length of short-circuit welding and is far away from base metal, so that the interruption phenomenon occurs, and even welding arc breaking and welding interruption are caused can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas shielded arc welding with consumable electrode, and particularly to a method and device for controlling fish-scale pattern welding and a storage medium. Background Art

[0002] In the field of welding, in order to pursue the fish-scale pattern effect and lower welding heat input, the MIX welding process is currently commonly used. It adopts a welding method in which pulse and DC short circuit are switched with each other according to preset time T1 and T2, forming a high-low energy match. The implementation method is as shown in the appendix Figure 2 as follows.

[0003] In addition to the mutual switching of high and low energy (current and voltage), the corresponding wire feeding speed also switches with the switching of energy. The common switching methods are as shown in the appendix Figure 3 as follows. When switching from high energy (current and voltage) to low energy, the wire feeding speed synchronously switches, or in order to achieve an ideal forming effect, the wire feeding speed is not synchronized with the switching of energy, as shown in the appendix Figure 4 as follows. However, both of the above two switching methods have certain limitations: Since the arc length is long during pulse welding and the distance between the welding wire and the base material is far, while the arcing time is short during DC short circuit welding and the distance between the welding wire and the base material is close. When switching from pulse to DC short circuit, after the pulse ends, short circuit welding is directly output. However, at this time, the welding wire has not reached the arc length of short circuit welding and is far from the base material, so there will be an obvious intermittent phenomenon, and even the welding arc may be interrupted, causing the welding to stop. This situation is more obvious when the difference between the current (or wire feeding speed) of pulse welding and the current (or wire feeding speed) of short circuit welding is larger, and when the pulse welding voltage is higher and the arc length is longer.

[0004] Therefore, there is an urgent need for a method and device for controlling fish-scale pattern welding and a storage medium to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a method and device for controlling fish-scale pattern welding and a storage medium, which can solve the technical problem that when switching from pulse to DC short circuit, the welding wire has not reached the arc length of short circuit welding and is far from the base material, resulting in an intermittent phenomenon, and even causing the welding arc to be interrupted and the welding to stop.

[0006] To achieve the above purpose, the present invention is implemented by the following technical solutions:

[0007] In the first aspect, the present invention provides a method for controlling fish-scale pattern welding, including:

[0008] Obtaining the actual pulse welding wire feeding speed, pulse welding voltage, DC short circuit wire feeding speed of the welding machine, and a preset switching slope k;

[0009] When the actual pulse welding voltage is greater than the preset unified pulse welding voltage, delay the switching of the wire feeding speed and reduce the switching slope. When the actual pulse welding voltage is less than or equal to the preset unified pulse welding voltage, advance the switching of the wire feeding speed and increase the switching slope;

[0010] When the difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed is greater than the preset difference threshold, delay the switching of the wire feeding speed and reduce the switching slope. When the difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed is less than the preset difference threshold, advance the switching of the wire feeding speed and reduce the switching slope. When the difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed is equal to the preset difference threshold, both the switching time and the switching efficiency remain unchanged.

[0011] Further, when the actual pulse welding voltage is less than or equal to the preset unified pulse welding voltage, advancing the switching of the wire feeding speed and increasing the switching slope includes:

[0012] Calculate the voltage difference between the actual pulse welding voltage and the preset unified pulse welding voltage;

[0013] Based on the voltage difference, calculate the first advance time of the wire feeding speed. The calculation formula includes:

[0014] ,

[0015] Based on the voltage difference, calculate the first increase value of the slope. The calculation formula includes:

[0016] ,

[0017] Advance the switching of the wire feeding speed according to the first advance time, and increase the switching slope according to the first increase value;

[0018] Wherein, t1 is the first advance time, k1 is the first increase value, U2 is the preset unified pulse welding voltage, U1 is the actual pulse welding voltage, a is the preset first time coefficient, b is the preset first slope coefficient, and U is the unit voltage.

[0019] Further, when the actual pulse welding voltage is greater than the preset unified pulse welding voltage, delaying the switching of the wire feeding speed and reducing the switching slope includes:

[0020] Calculate the voltage difference between the actual pulse welding voltage and the preset unified pulse welding voltage;

[0021] Based on the voltage difference, calculate the second delay time of the wire feeding speed. The calculation formula includes:

[0022] ,

[0023] Calculate a second reduction value of the slope based on the voltage difference, and the calculation formula includes:

[0024] ,

[0025] Delay the switching of the wire feeding speed according to the second delay time, and reduce the switching slope according to the second reduction value;

[0026] Wherein, t2 is the second delay time, k2 is the second increase value, U2 is the preset pulse welding unified voltage, U1 is the actual pulse welding voltage, a is the preset first time coefficient, b is the preset first slope coefficient, and U is the unit voltage.

[0027] Further, when the difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed is less than a preset difference threshold, switch the wire feeding speed in advance, and reducing the switching slope includes:

[0028] Calculate the speed difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed;

[0029] Calculate a third advance time of the wire feeding speed based on the speed difference, and the calculation formula includes:

[0030] ,

[0031] Calculate a third reduction value of the slope based on the speed difference, and the calculation formula includes:

[0032] k3 = ,

[0033] Switch the wire feeding speed in advance according to the third advance time, and reduce the switching slope according to the third reduction value;

[0034] Wherein, t3 is the third advance time, k3 is the third reduction value, v1 is the pulse wire feeding speed, v2 is the DC short - circuit wire feeding speed, c is the preset second time coefficient, d is the preset second slope coefficient, and V is the unit speed.

[0035] Further, when the difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed is greater than a preset difference threshold, delay the switching of the wire feeding speed, and reducing the switching slope includes:

[0036] Calculate the speed difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed;

[0037] Calculate a fourth delay time of the wire feeding speed based on the speed difference, and the calculation formula includes:

[0038] ,

[0039] Calculate the fourth slope reduction value based on the speed difference, and the calculation formula includes:

[0040] ,

[0041] Delay the wire feeding speed switching according to the fourth delay time, and reduce the switching slope according to the fourth reduction value;

[0042] Wherein, t4 is the fourth delay time, k4 is the fourth reduction value, v1 is the wire feeding speed for pulsed welding, v2 is the wire feeding speed for DC short circuit, c is a preset second time coefficient, d is a preset second slope coefficient, and V is the unit wire feeding speed.

[0043] In a second aspect, the present invention provides a fish scale pattern welding control device, including:

[0044] An acquisition module for obtaining the actual wire feeding speed for pulsed welding, pulsed welding voltage, wire feeding speed for DC short circuit, and a preset switching slope k of the welding machine;

[0045] A voltage switching module for delaying the wire feeding speed switching and reducing the switching slope when the actual pulsed welding voltage is greater than the preset pulsed welding unitary voltage, and advancing the wire feeding speed switching and increasing the switching slope when the actual pulsed welding voltage is less than or equal to the preset pulsed welding unitary voltage;

[0046] A current switching module for delaying the wire feeding speed switching and reducing the switching slope when the difference between the wire feeding speed for pulsed welding and the wire feeding speed for DC short circuit is greater than a preset difference threshold, advancing the wire feeding speed switching and reducing the switching slope when the difference between the wire feeding speed for pulsed welding and the wire feeding speed for DC short circuit is less than the preset difference threshold, and maintaining the switching time and switching efficiency unchanged when the difference between the wire feeding speed for pulsed welding and the wire feeding speed for DC short circuit is equal to the preset difference threshold.

[0047] In a third aspect, the present invention provides an electronic terminal, including a processor and a memory connected to the processor. A computer program is stored in the memory, and when the computer program is executed by the processor, the steps of the method described in any one of the above are executed.

[0048] In a fourth aspect, the present invention provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the method described in any one of the above are implemented.

[0049] Compared with the prior art, the beneficial effects achieved by the present invention:

[0050] The present invention calculates by obtaining the actual pulse welding wire feeding speed, pulse welding unitary voltage, DC short-circuit wire feeding speed, and DC short-circuit welding unitary voltage of the welding machine, so as to control the switching slope and switching time, and can solve the technical problem that when switching from pulse to DC short circuit, the welding wire has not reached the arc length of short-circuit welding and is far from the base material, resulting in intermittent phenomena, and even causing welding arc interruption and welding interruption. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 is a flowchart of a fish-scale pattern welding control method provided by an embodiment of the present invention;

[0052] Figure 2 is a waveform schematic diagram of the fish-scale pattern welding method mentioned in the background art of the present invention;

[0053] Figure 3 is the conventional fish-scale pattern method waveform 1 mentioned in the background art of the present invention;

[0054] Figure 4 is the conventional fish-scale pattern method waveform 2 mentioned in the background art of the present invention;

[0055] Figure 5 is a schematic diagram of voltage adjustment of the fish-scale pattern method in a fish-scale pattern welding control method provided by an embodiment of the present invention.

[0056] Figure 6 is a schematic diagram of current adjustment of the fish-scale pattern method in a fish-scale pattern welding control method provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0057] The technical solution of the present invention will be described in detail below with reference to the drawings and specific embodiments. It should be understood that the specific features in the embodiments of the present application and the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. Without conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0058] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0059] It should be noted that the wire feeding speed switching mentioned in the present application is software-controlled, which controls the rotation speed of the wire feeding motor. This belongs to the prior art and will not be elaborated hereinafter;

[0060] The coefficients mentioned in this application are obtained based on actual experimental experience. To obtain this value on the premise of ensuring continuous arc during welding switching, its value range varies according to different wire diameters and different wire materials.

[0061] Embodiment 1:

[0062] Figure 1 It is a flowchart of the fish-scale pattern welding control method in Embodiment 1 of the present invention. This flowchart only shows the logical sequence of the method described in this embodiment. On the premise of non-conflict, in other possible embodiments of the present invention, the steps shown or described can be completed in a different order Figure 1 from that shown.

[0063] The fish-scale pattern welding control method provided in this embodiment can be applied to a terminal and can be executed by a mechanical equipment fault identification device. This device can be implemented in a software and / or hardware manner and can be integrated in the terminal. For example: any smart phone, tablet computer or computer device with a communication function. Refer to Figures 1 to 6 shown, the method of this embodiment specifically includes the following steps:

[0064] Step 1: Obtain the actual pulse welding wire feeding speed, pulse welding voltage, DC short-circuit wire feeding speed of the welding machine, and a preset switching slope k.

[0065] Step 2: When the actual pulse welding voltage is greater than the preset pulse welding unitary voltage, delay the switching of the wire feeding speed and reduce the switching slope, including:

[0066] Calculate the voltage difference between the actual pulse welding voltage and the preset pulse welding unitary voltage;

[0067] Based on the voltage difference, calculate the second delay time of the wire feeding speed. The calculation formula includes:

[0068] ,

[0069] Based on the voltage difference, calculate the second reduction value of the slope. The calculation formula includes:

[0070] ,

[0071] Delay the switching of the wire feeding speed according to the second delay time, and reduce the switching slope according to the second reduction value;

[0072] Among them, t2 is the second delay time, with the unit of ms, k2 is the second increase value, U2 is the preset pulse welding unified voltage, U1 is the actual pulse welding voltage, a is the preset first time coefficient, with the unit of ms, b is the preset first slope coefficient, and the unit is the same as the unit of the slope k. U is the unit voltage, and in this embodiment, it can be 1V.

[0073] When the actual pulse welding voltage is less than or equal to the preset pulse welding unified voltage, the wire feeding speed is switched in advance, and increasing the switching slope includes:

[0074] Calculate the voltage difference between the actual pulse welding voltage and the preset pulse welding unified voltage;

[0075] Based on the voltage difference, calculate the first advance time of the wire feeding speed, and the calculation formula includes:

[0076] ,

[0077] Based on the voltage difference, calculate the first increase value of the slope, and the calculation formula includes:

[0078] ,

[0079] According to the first advance time, switch the wire feeding speed in advance, and according to the first increase value, increase the switching slope;

[0080] Among them, t1 is the first advance time, with the unit of ms, k1 is the first increase value, U2 is the preset pulse welding unified voltage, U1 is the actual pulse welding voltage, a is the preset first time coefficient, with the unit of ms, b is the preset first slope coefficient, and the unit is the same as the unit of the slope k. U is the unit voltage, and in this embodiment, it can be 1V.

[0081] Step 3: When the difference between the pulse welding wire feeding speed and the DC short-circuit wire feeding speed is less than the preset difference threshold, switch the wire feeding speed in advance, and reducing the switching slope includes:

[0082] Calculate the speed difference between the pulse welding wire feeding speed and the DC short-circuit wire feeding speed;

[0083] Based on the speed difference, calculate the third advance time of the wire feeding speed, and the calculation formula includes:

[0084] ,

[0085] Based on the speed difference, calculate the third reduction value of the slope, and the calculation formula includes:

[0086] k3= ,

[0087] Advance the wire feeding speed according to the third advance time, and reduce the switching slope according to the third reduction value;

[0088] Wherein, t3 is the third advance time, with the unit of ms, k3 is the third reduction value, v1 is the pulsed wire feeding speed, v2 is the DC short-circuit wire feeding speed, c is a preset second time coefficient, with the unit of ms, d is a preset second slope coefficient, and the unit is the same as that of k, V is the unit speed, and in this embodiment, it can be 1 m / min.

[0089] When the difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed is greater than the preset difference threshold, delay the switching of the wire feeding speed. Reducing the switching slope includes:

[0090] Calculate the speed difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed;

[0091] Based on the speed difference, calculate the fourth delay time of the wire feeding speed. The calculation formula includes:

[0092] ,

[0093] Based on the speed difference, calculate the fourth reduction value of the slope. The calculation formula includes:

[0094] ,

[0095] Delay the switching of the wire feeding speed according to the fourth delay time, and reduce the switching slope according to the fourth reduction value;

[0096] Wherein, t4 is the fourth delay time, with the unit of ms, k4 is the fourth reduction value, v1 is the pulsed welding wire feeding speed, v2 is the DC short-circuit wire feeding speed, c is a preset second time coefficient, with the unit of ms, d is a preset second slope coefficient, and the unit is the same as that of the slope, V is the unit wire feeding speed, and in this embodiment, it can be 1 m / min.

[0097] When the difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed is equal to the preset difference threshold, both the switching time and the switching efficiency remain unchanged.

[0098] Special note: Under standard conditions, when the actual voltage is the preset pulsed welding unitary voltage, the time taken for the standard pulsed arc to switch to DC short circuit (that is, after the pulse ends, the welding wire is fed until it contacts the base material and a short circuit occurs) is T 总 , and then when the actual voltage is higher than the preset pulsed welding unitary voltage, the arc length of the pulsed arc becomes longer, that is, at the original wire feeding speed, the time taken for the welding wire to be fed until it contacts the base material becomes longer. To ensure the consistency of the switching process, the time taken is still T总 At this time, the effective wire feeding speed must be increased. In the above control, after the switching, the pulsed wire feeding speed (higher speed) is still maintained for a period of time, that is, the delay time, and at the same time, the switching slope decreases gradually to ensure a larger wire feeding amount. Finally, it is ensured that within time T 总 , the welding wire can contact the base material and start DC short-circuit welding. Similarly, when the actual voltage is less than the preset pulsed welding unified voltage, if the parameters remain unchanged, the welding wire may contact the base material within a shorter time (less than T 总 ), so the opposite adjustment method is adopted, that is, the wire feeding speed is switched in advance, and the switching slope becomes steeper, so that the time for the welding wire to contact the base material is still T 总 .

[0099] Embodiment 2:

[0100] Embodiment 2 of the present invention provides a fish-scale pattern welding control device, including:

[0101] An acquisition module, configured to obtain the actual pulsed welding wire feeding speed, pulsed welding voltage, DC short-circuit wire feeding speed of the welding machine, and a preset switching slope k;

[0102] A voltage switching module, configured to delay the switching of the wire feeding speed and reduce the switching slope when the actual pulsed welding voltage is greater than the preset pulsed welding unified voltage, and switch the wire feeding speed in advance and increase the switching slope when the actual pulsed welding voltage is less than or equal to the preset pulsed welding unified voltage;

[0103] A current switching module, configured to delay the switching of the wire feeding speed and reduce the switching slope when the difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed is greater than a preset difference threshold, switch the wire feeding speed in advance and reduce the switching slope when the difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed is less than the preset difference threshold, and maintain the switching time and switching efficiency unchanged when the difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed is equal to the preset difference threshold.

[0104] The fish-scale pattern welding control provided in Embodiment 2 of the present invention can execute the fish-scale pattern welding control method provided in Embodiment 1 of the present invention, and has the corresponding functional modules and beneficial effects of the execution method.

[0105] Embodiment 3:

[0106] Embodiment 3 of the present invention further provides an electronic terminal, including a processor and a memory connected to the processor. A computer program is stored in the memory, and the processor is configured to operate according to the instructions to execute the steps of the method described in Embodiment 1.

[0107] The electronic terminal provided in the third embodiment of the present invention can execute the fish-scale pattern welding control method provided in the first embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the method.

[0108] Embodiment 4:

[0109] The fourth embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the steps of the method described in Embodiment 1 are implemented, and the corresponding functional modules and beneficial effects for executing the method are provided.

[0110] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, devices, or computer program products. Therefore, the present application can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented 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.

[0111] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (apparatus), and computer program products according to the embodiments of the present application. It should be understood that each flow and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the flows and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the specified functions in one Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0112] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured product including an instruction device, and the instruction device implements the specified functions in one Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0113] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide for implementing the specified functions in one Figure 1 one flow or multiple flows and / or blocks Figure 1Steps of the functions specified in one or more boxes.

[0114] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principles of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A method for controlling fish-scale pattern welding, characterized in that, Including: Obtain the actual pulse welding wire feeding speed, pulse welding voltage, DC short - circuit wire feeding speed of the welding machine, and the pre - set switching slope k; When the actual pulse welding voltage is greater than the pre - set pulse welding unitary voltage, delay the switching of the wire feeding speed and reduce the switching slope. When the actual pulse welding voltage is less than or equal to the pre - set pulse welding unitary voltage, advance the switching of the wire feeding speed and increase the switching slope; When the difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed is greater than the pre - set difference threshold, delay the switching of the wire feeding speed and reduce the switching slope. When the difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed is less than the pre - set difference threshold, advance the switching of the wire feeding speed and reduce the switching slope. When the difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed is equal to the pre - set difference threshold, both the switching time and switching efficiency remain unchanged.

2. The fish-scale pattern welding control method according to claim 1, characterized in that, When the actual pulse welding voltage is less than or equal to the pre - set pulse welding unitary voltage, advancing the switching of the wire feeding speed and increasing the switching slope includes: Calculate the voltage difference between the actual pulse welding voltage and the pre - set pulse welding unitary voltage; Calculate the first advance time of the wire feeding speed based on the voltage difference, and the calculation formula includes: ， Calculate the first increase value of the slope based on the voltage difference, and the calculation formula includes: ， Advance the switching of the wire feeding speed according to the first advance time, and increase the switching slope according to the first increase value; Wherein, t1 is the first advance time, k1 is the first increase value, U2 is the pre - set pulse welding unitary voltage, U1 is the actual pulse welding voltage, a is the pre - set first time coefficient, b is the pre - set first slope coefficient, and U is the unit voltage.

3. The fish-scale pattern welding control method according to claim 1, wherein, When the actual pulse welding voltage is greater than the pre - set pulse welding unitary voltage, delaying the switching of the wire feeding speed and reducing the switching slope includes: Calculate the voltage difference between the actual pulse welding voltage and the pre - set pulse welding unitary voltage; Calculate the second delay time of the wire feeding speed based on the voltage difference, and the calculation formula includes: ， Calculate the second reduction value of the slope based on the voltage difference, and the calculation formula includes: ， Delay the switching of the wire feeding speed according to the second delay time, and reduce the switching slope according to the second reduction value; Wherein, t2 is the second delay time, k2 is the second increase value, U2 is the pre - set pulse welding unitary voltage, U1 is the actual pulse welding voltage, a is the pre - set first time coefficient, b is the pre - set first slope coefficient, and U is the unit voltage.

4. The fish-scale pattern welding control method according to claim 1, characterized in that When the difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed is less than the pre - set difference threshold, advancing the switching of the wire feeding speed and reducing the switching slope includes: Calculate the speed difference between the pulse welding wire feeding speed and the DC short - circuit wire feeding speed; Calculate the third advance time of the wire feeding speed based on the speed difference, and the calculation formula includes: ， Calculate the third reduction value of the slope based on the speed difference, and the calculation formula includes: k3= ， Advance the switching of the wire feeding speed according to the third advance time, and reduce the switching slope according to the third reduction value; Among them, t3 is the third advance time, k3 is the third reduction value, v1 is the pulsed wire feeding speed, v2 is the DC short-circuit wire feeding speed, c is a preset second time coefficient, d is a preset second slope coefficient, and V is the unit speed.

5. The fish-scale pattern welding control method according to claim 1, characterized in that When the difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed is greater than a preset difference threshold, delaying the switching of the wire feeding speed and reducing the switching slope includes: Calculating the speed difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed; Calculating the fourth delay time of the wire feeding speed based on the speed difference, and the calculation formula includes: ， Calculating the fourth reduction value of the slope based on the speed difference, and the calculation formula includes: ， Delaying the switching of the wire feeding speed according to the fourth delay time, and reducing the switching slope according to the fourth reduction value; Among them, t4 is the fourth delay time, k4 is the fourth reduction value, v1 is the pulsed welding wire feeding speed, v2 is the DC short-circuit wire feeding speed, c is a preset second time coefficient, d is a preset second slope coefficient, and V is the unit wire feeding speed.

6. A fish-scale pattern welding control device, characterized in that, Including: An acquisition module, configured to obtain the actual pulsed welding wire feeding speed, pulsed welding voltage, DC short-circuit wire feeding speed of the welding machine, and a preset switching slope k; A voltage switching module, configured to delay the switching of the wire feeding speed and reduce the switching slope when the actual pulsed welding voltage is greater than the preset pulsed welding unitary voltage, and advance the switching of the wire feeding speed and increase the switching slope when the actual pulsed welding voltage is less than or equal to the preset pulsed welding unitary voltage; A current switching module, configured to delay the switching of the wire feeding speed and reduce the switching slope when the difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed is greater than a preset difference threshold, advance the switching of the wire feeding speed and reduce the switching slope when the difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed is less than the preset difference threshold, and keep the switching time and switching efficiency unchanged when the difference between the pulsed welding wire feeding speed and the DC short-circuit wire feeding speed is equal to the preset difference threshold.

7. An electronic terminal, characterized in that, Including a processor and a memory connected to the processor, and a computer program is stored in the memory. When the computer program is executed by the processor, the steps of the method according to any one of claims 1 to 5 are executed.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, the steps of the method according to any one of claims 1 to 5 are implemented.

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