Pulse welding arc starting control method and device

Abstract

The application provides a pulse welding arc striking control method and device, the method comprising: from wire feeding to a first time, adjusting the base value, peak value and peak time of the pulse current based on a preset first adjustment parameter group; at the first time, obtaining a feedback voltage value and judging whether the feedback voltage value is greater than a set voltage value; if it is judged that the feedback voltage value is greater than the set voltage value, adjusting the base value, peak value and peak time of the pulse current based on a preset second adjustment parameter group from the first time to the end of the arc striking stage. By adjusting based on the first adjustment parameter group in the arc striking slow wire feeding stage and the wire feeding ramping stage, and judging whether the feedback voltage exceeds the set voltage when the real-time wire feeding speed reaches a preset value, and adjusting based on the second adjustment parameter group if it exceeds, the parameters of the pulse arc striking current are smoothly transitioned to the welding process set value, welding defects are reduced, and welding quality is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding, in particular to a pulse welding arc striking control method and device. BACKGROUND

[0002] When performing a gas metal arc welding operation, after opening the welding gun switch, the welding machine system automatically calls the arc striking welding parameters and the wire feeding parameters, and starts wire feeding, at this time the welding machine program is in a slow wire feeding state. When the welding wire contacts the base material, the arc striking process is entered, and an arc is generated. After the arc is generated, the welding wire continues to feed in, at this time the welding current gradually increases until it increases to the set welding current, and then normal welding is started. During the arc striking process, due to factors such as the base material, welding wire surface dirt, uneven airflow, external magnetic field, etc., arc striking wire breakage, large spatter, magnetic blowout, etc. are easily caused, thereby producing welding defects. SUMMARY

[0003] The purpose of the present application is to provide a pulse welding arc striking control method and device which reduces welding defects.

[0004] To achieve the above purpose, the present application provides a pulse welding arc striking control method, which comprises:

[0005] From the start of wire feeding to the first time, the base value, peak value and peak time of the pulse current are adjusted based on a preset first adjustment parameter group; the wire feeding speed at the first time is equal to the preset wire feeding speed;

[0006] At the first time, a feedback voltage value is obtained, and it is judged whether the feedback voltage value is greater than a set voltage value;

[0007] If it is judged that the feedback voltage value is greater than the set voltage value, from the first time to the end of the arc striking stage, the base value, peak value and peak time of the pulse current are adjusted based on a preset second adjustment parameter group.

[0008] The present application also provides a pulse welding arc striking control device, which comprises:

[0009] A first adjustment module is configured to, from the start of wire feeding to the first time, adjust the base value, peak value and peak time of the pulse current based on a preset first adjustment parameter group; the wire feeding speed at the first time is equal to the preset wire feeding speed;

[0010] A feedback voltage judgment module is configured to, at the first time, obtain a feedback voltage value, and judge whether the feedback voltage value is greater than a set voltage value;

[0011] The second adjusting module is configured to, if the feedback voltage value is greater than the set voltage value, adjust the base value, the peak value and the peak time of the pulse current based on a preset second adjusting parameter group from the first time until the end of the arc striking stage.

[0012] The embodiment of the present application also provides a computer device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, and the processor implements the pulse welding arc striking control method as described above when executing the computer program.

[0013] The embodiment of the present application adjusts the base value, the peak value and the peak time of the pulse current based on a preset first adjusting parameter group from the start of wire feeding until the first time, wherein the wire feeding speed at the first time is equal to the preset wire feeding speed; at the first time, a feedback voltage value is obtained, and it is judged whether the feedback voltage value is greater than a set voltage value; if the feedback voltage value is greater than the set voltage value, the base value, the peak value and the peak time of the pulse current are adjusted based on a preset second adjusting parameter group from the first time until the end of the arc striking stage. By adjusting the pulse current based on the first adjusting parameter group in the arc striking slow wire feeding stage and the wire feeding ramping stage, and judging whether the feedback voltage exceeds the set voltage when the real-time wire feeding speed reaches the preset value, if the feedback voltage exceeds the set voltage, the pulse current is adjusted based on the second adjusting parameter group, so that the parameters of the pulse arc striking current smoothly transit to the set values of the welding process, the arc striking is smooth, the welding spatter is reduced, the welding defects are reduced, and the welding quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The following drawings are merely intended to schematically illustrate and explain the present application, and do not limit the scope of the present application. Among them:

[0015] Figure 1 is an implementation process schematic diagram of the pulse welding arc striking control method of the embodiment of the present application;

[0016] Figure 2 is a wire feeding speed and pulse current parameter waveform change diagram (one) in the specific example of the present application;

[0017] Figure 3 is a wire feeding speed and pulse current parameter waveform change diagram (two) in the specific example of the present application

[0018] Figure 4 is a structure schematic diagram of the pulse welding arc striking control device of the embodiment of the present application;

[0019] Figure 5 is a structure schematic diagram of a computer device in the embodiment of the present application. DETAILED DESCRIPTION

[0020] The application will be further described below in detail with the aid of the accompanying drawings and examples. The features and advantages of the present application will become more apparent from these descriptions.

[0021] The term "exemplary" is used herein to mean "serving as an example, instance, or illustration." Any implementation described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other implementations. Unless specifically indicated otherwise, the description herein is not intended to be drawn to scale.

[0022] In addition, the technical features involved in the different embodiments of the application described below can be combined with each other as long as there is no conflict.

[0023] The embodiment of the application provides a pulse welding arc striking control method, which is used for reducing welding defects and improving welding quality. Figure 1 As shown in the figure, the method comprises the following steps:

[0024] Step 101: from the start of wire feeding to the first moment, adjusting the base value, peak value and peak time of the pulse current based on a preset first adjustment parameter group; wherein the wire feeding speed at the first moment is equal to the preset wire feeding speed.

[0025] Step 102: at the first moment, acquiring a feedback voltage value, and judging whether the feedback voltage value is greater than a set voltage value.

[0026] Step 103: if it is judged that the feedback voltage value is greater than the set voltage value, adjusting the base value, peak value and peak time of the pulse current based on a preset second adjustment parameter group from the first moment to the end of the arc striking stage.

[0027] In the specific embodiment, the base value, peak value and peak time of the pulse current are adjusted based on the preset first adjustment parameter group from the start of wire feeding to the first moment; wherein the wire feeding speed at the first moment is equal to the preset wire feeding speed; at the first moment, a feedback voltage value is acquired, and it is judged whether the feedback voltage value is greater than a set voltage value; if it is judged that the feedback voltage value is greater than the set voltage value, the base value, peak value and peak time of the pulse current are adjusted based on the preset second adjustment parameter group from the first moment to the end of the arc striking stage. In the arc striking slow wire feeding stage and the wire feeding ramping stage, the pulse current is adjusted based on the first adjustment parameter group, and when the real-time wire feeding speed reaches the preset value, it is judged whether the feedback voltage exceeds the set voltage; if it exceeds, the pulse current is adjusted based on the second adjustment parameter group, so that the parameters of the pulse arc striking current are smoothly transitioned to the set value of the welding process, the arc striking is smooth, the welding spatter is reduced, the welding defects are reduced, and the welding quality is improved.

[0028] In specific implementation, from the start of wire feeding to the first time, the base value, peak value and peak time of the pulse current are adjusted based on the preset first adjustment parameter group, wherein the wire feeding speed at the first time is equal to the preset wire feeding speed. That is, in the slow wire feeding stage and the wire feeding ramp-up stage, the base value, peak value and peak time of the pulse current are adjusted based on the preset first adjustment parameter group. The first adjustment parameter group at least includes a base value first adjustment parameter, a peak value first adjustment parameter and a peak time first adjustment parameter. Correspondingly, adjusting the base value, peak value and peak time of the pulse current based on the preset first adjustment parameter group includes:

[0029] obtaining a set base value, a set peak value and a set peak time of the pulse current of the welding machine;

[0030] superimposing the base value first adjustment parameter on the set base value of the pulse current to obtain a base value first adjustment value of the pulse current;

[0031] superimposing the peak value first adjustment parameter on the set peak value of the pulse current to obtain a peak value first adjustment value of the pulse current;

[0032] superimposing the peak time first adjustment parameter on the set peak time of the pulse current to obtain a peak time first adjustment value of the pulse current.

[0033] The base value first adjustment parameter, the peak value first adjustment parameter and the peak time first adjustment parameter are determined by a plurality of manual welding tests in advance. The welding voltage used in each manual welding test is consistent with the set voltage of the welding machine, and the welding current is consistent with the set current of the welding machine except for the parameter value to be determined. That is, when determining the base value first adjustment parameter, a plurality of control tests are set, the welding voltage, the peak value of the welding current and the peak time of the welding current of the plurality of control tests are consistent, and the base value of the welding current of each group is different. The best welding effect is obtained by manual welding, and the base value of the welding current of the group is the base value first adjustment parameter under the welding voltage.

[0034] In the slow wire feeding stage, the pulse current is always adjusted based on the above-mentioned first adjustment parameter group until the first time. At the first time, a feedback voltage value is obtained, and it is determined whether the feedback voltage value is greater than a set voltage value. The feedback voltage refers to the voltage between the two ends of the welding arc, and the set voltage value is the numerical value of the output voltage set by the welding machine.

[0035] If it is judged that the feedback voltage value is greater than the set voltage value, from the first time point until the end of the arc striking stage, the base value, the peak value and the peak value time of the pulse current are adjusted based on the preset second adjustment parameter group. Specifically, there are two adjustment methods. In a specific embodiment, the second adjustment parameter group at least includes: a base value second adjustment parameter, a peak value second adjustment parameter and a peak value time second adjustment parameter. Accordingly, from the first time point until the end of the arc striking stage, the base value, the peak value and the peak value time of the pulse current are adjusted based on the preset second adjustment parameter group, including:

[0036] The set base value, the set peak value and the set peak value time of the pulse current of the welding machine are obtained.

[0037] From the first time point, the base value second adjustment value of each pulse period is obtained based on the base value second adjustment value of the last pulse period and the base value second adjustment parameter, until the base value second adjustment value of the current pulse period is equal to the set base value.

[0038] From the first time point, the peak value second adjustment value of each pulse period is obtained based on the peak value second adjustment value of the last pulse period and the peak value second adjustment parameter, until the peak value second adjustment value of the current pulse period is equal to the set peak value.

[0039] From the first time point, the peak value time second adjustment value of each pulse period is obtained based on the peak value time second adjustment value of the last pulse period and the peak value time second adjustment parameter, until the peak value time second adjustment value of the current pulse period is equal to the set peak value time.

[0040] Among them, the pulse current base value corresponding to the first time point is taken as the base value second adjustment value of the last pulse period of the first pulse period, the pulse current peak value corresponding to the first time point is taken as the peak value second adjustment value of the last pulse period of the first pulse period, and the pulse current peak value time corresponding to the first time point is taken as the peak value time second adjustment value of the last pulse period of the first pulse period. That is, the actual values of the pulse current at the first time point are taken as the adjustment reference, that is, the actual base value, the actual peak value and the actual peak value time are taken as the adjustment reference, and through the adjustment of several pulse periods, the pulse current is consistent with the setting, the arc striking stage ends, and enters the normal welding stage.

[0041] That is, from the first moment, taking the pulse current base value, peak value and peak time corresponding to the first moment as the reference, the base value, peak value and peak time of the pulse current are increased by the values corresponding to the second adjustment parameters of the base value, peak value and peak time respectively in each pulse period, until the base value second adjustment value, peak value second adjustment value and peak time second adjustment value of the current period reach the set values. In this process, in the last pulse period, if the parameter values (base value second adjustment value, peak value second adjustment value and peak time second adjustment value) of the last pulse period are increased by the values corresponding to the second adjustment parameter group, and are greater than the set values, the values are adjusted to the set values. For example, in the last adjusted pulse period of the peak value, if the peak value second adjustment value of the last pulse period is 495A, and the peak value second adjustment parameter is 3A, the peak value of the pulse current should be adjusted to 498A after the end of the pulse period, but the set peak value of the pulse current is 497A, so the peak value of the pulse current only needs to be adjusted to 497A after the end of the pulse period.

[0042] In another specific embodiment, by setting the number of adjusted pulse periods, the pulse current is uniformly and stably adjusted to the set value. Specifically, the second adjustment parameter group includes at least: base value second adjustment period, peak value second adjustment period and peak time second adjustment period. Correspondingly, from the first moment to the end of the arc striking stage, the base value, peak value and peak time of the pulse current are adjusted based on the preset second adjustment parameter group, including:

[0043] obtaining the set base value, set peak value and set peak time of the pulse current of the welding machine;

[0044] adjusting the base value of the pulse current according to the base value second adjustment period, so that the adjusted base value of the pulse current is equal to the set base value;

[0045] adjusting the peak value of the pulse current according to the peak value second adjustment period, so that the adjusted peak value of the pulse current is equal to the set peak value;

[0046] adjusting the peak time of the pulse current according to the peak time second adjustment period, so that the adjusted peak time of the pulse current is equal to the set peak time.

[0047] Similarly, the pulse current base value, peak value and peak time corresponding to the first time are taken as the reference, and the same value is added to one parameter (any one of the base value, peak value or peak time) in each pulse period according to the set adjustment period, so that it is consistent with the set value after the set number of pulse periods. In particular, the values of the base value second adjustment period, the peak value second adjustment period and the peak time second adjustment period can be inconsistent, but the difference between any two values cannot be greater than 2, so as to avoid the problem of inappropriate droplet detachment caused by too large adjustment period difference, thereby causing the problem of increased spatter.

[0048] In addition, in the first time, if it is judged that the feedback voltage value is less than or equal to the set voltage value, the base value, peak value and peak time of the pulse current are also adjusted according to the first adjustment parameter group until the end of the thermovoltage application. After the end of the thermovoltage application until the end of the arc striking stage, the base value, peak value and peak time of the pulse current are adjusted based on the preset second adjustment parameter group. Among them, the thermovoltage application refers to the voltage superimposed on the set voltage in the arc striking stage.

[0049] After the end of the thermovoltage application until the end of the arc striking stage, the base value, peak value and peak time of the pulse current are adjusted based on the preset second adjustment parameter group. The adjustment mode is consistent with the mode adopted in the above-mentioned specific embodiment.

[0050] In order to better illustrate how the pulse welding arc striking control is performed in the embodiment of the present application, a specific example is provided to further explain and illustrate.

[0051] In this specific example, after the welding gun switch is turned on, the welding machine system automatically reads the pulse parameters in the pulse welding process, such as the real-time pulse current base value, peak value and peak time, as well as the set current and set voltage and other parameters. In the slow wire feeding stage and the ramp-up stage, the peak value, base value and peak time of the pulse current are superimposed, and the superimposition rule is:

[0052] IP 调整1 = IP 设定 + ΔI0, IB 调整1 = IB 设定 + ΔI1, T 调整1 = T 设定 + ΔT0.

[0053] Among them, IP 调整1 , IB 调整1 , T 调整1 are the peak value first adjustment value of the pulse current, the base value first adjustment value of the pulse current and the peak time first adjustment value of the pulse current, respectively;

[0054] IP 设定 , IB 设定 , T 设定The peak value of the pulse current, the base value of the pulse current and the peak time of the pulse current are respectively set;

[0055] ΔI0, ΔI1, ΔT0 are respectively a peak first adjustment parameter, a base first adjustment parameter and a peak time first adjustment parameter.

[0056] Three parameters ΔI0, ΔI1, ΔT0 are added to the set value until the actual wire feeding speed is equal to the preset wire feeding speed, the relationship between the set voltage and the feedback voltage is judged, if the feedback voltage FBV is greater than the set voltage SetV, ΔI0, ΔI1, ΔT0 are no longer superimposed, the pulse current is adjusted again, and the adjustment rule is: IP 调整2 , IB 调整2 , T 调整2 values need to be transitioned to IP 设定 , IB 设定 , T 设定 in the main welding process, transition once in each pulse period, transition for multiple pulse periods until IP 调整2 = IP 设定 , IB 调整2 = IB 设定 , T 调整2 = T 设定 , and the transition rule is:

[0057] IP 设定 -IP 调整2(0) = N0*ΔI2, IB 设定 -IB 调整2(0) = N1*ΔI3, T 设定 -T 调整2(0) = N2*ΔT1.

[0058] Wherein, IP 调整2(0) , IB 调整2(0) , T 调整2(0) are respectively the peak value, the base value and the peak time of the pulse current at the first moment;

[0059] N0, N1, N2 are respectively a peak second adjustment period of the pulse current, a base second adjustment period of the pulse current and a peak time second adjustment period of the pulse current;

[0060] ΔI2, ΔI3, ΔT1 are respectively a peak second adjustment parameter, a base second adjustment parameter and a peak time second adjustment parameter, and the values of ΔI2, ΔI3, ΔT1 are generally related to the welding base material, the welding material and the protective gas, and need to be determined by multiple tests.

[0061] During the specific transition, you can set N0, N1, and N2, and then determine the values ​​of ΔI2, ΔI3, and ΔT1. Alternatively, you can set the values ​​of ΔI2, ΔI3, and ΔT1, and then calculate N0, N1, and N2. When calculating, use the rounding method where there is a remainder and carry over one bit.

[0062] If the feedback voltage FBV is less than or equal to the set voltage SetV, the adjustment method of superimposing ΔI0, ΔI1, and ΔT0 is maintained until the hot-time ends. Then, the adjustment is performed according to the adjustment rules described above, that is, based on the preset values ​​of ΔI2, ΔI3, and ΔT1 or the preset values ​​of N0, N1, and N2.

[0063] like Figure 2 The diagram shows a comparison of the wire feed speed and pulse current waveforms when using the pulse welding arc initiation control method provided in this embodiment of the invention, and when the feedback voltage is higher than the set voltage at the first moment (t1 in the figure). Figure 3 The diagram shows a comparison of the parameter waveforms of wire feed speed and pulse current when the feedback voltage is less than or equal to the set voltage at the first moment (t1 in the figure) using the pulse welding arc initiation control method provided in this embodiment of the invention. In the figure, the dashed line in the upper part represents the feedback voltage, and the solid line represents the wire feed speed (the overlapping part of the dashed line is not shown).

[0064] According to the adjustment method provided in this specific example, the results of the comparative experiment are as follows: the arc ignition success rate without using this method is 82%, while the arc ignition success rate with the adjustment method provided in this specific example is 95%. It can be seen that the pulse welding arc ignition control method provided by this invention can ensure smooth arc ignition, appropriate droplet shedding, low spatter, rapid and stable arc, and improve the arc ignition success rate.

[0065] Based on the same inventive concept, this invention also provides a pulse welding arc initiation control device. The principle of solving the problem is similar to the above-described pulse welding arc initiation control method, and the repeated parts will not be described again. The specific structure is as follows: Figure 4 As shown, it includes:

[0066] The first adjustment module 401 is used to adjust the base value, peak value, and peak time of the pulse current based on a preset first adjustment parameter group from the start of wire feeding until the first moment; wherein, the wire feeding speed at the first moment is equal to the preset wire feeding speed.

[0067] The feedback voltage judgment module 402 is used to obtain the feedback voltage value at the first moment and determine whether the feedback voltage value is greater than the set voltage value.

[0068] The second adjustment module 403 is configured to, if it is judged that the feedback voltage value is greater than the set voltage value, adjust the base value, the peak value and the peak value time of the pulse current based on a preset second adjustment parameter group from the first time until the end of the arc striking stage.

[0069] In a specific implementation, the first adjustment parameter group at least includes a base value first adjustment parameter, a peak value first adjustment parameter and a peak value time first adjustment parameter. Correspondingly, the first adjustment module 401 is specifically configured to:

[0070] obtain a set base value, a set peak value and a set peak value time of the pulse current of the welding machine;

[0071] superimpose the base value first adjustment parameter on the set base value of the pulse current to obtain a base value first adjustment value of the pulse current;

[0072] superimpose the peak value first adjustment parameter on the set peak value of the pulse current to obtain a peak value first adjustment value of the pulse current;

[0073] superimpose the peak value time first adjustment parameter on the set peak value time of the pulse current to obtain a peak value time first adjustment value of the pulse current.

[0074] In a specific implementation, the second adjustment parameter group at least includes a base value second adjustment parameter, a peak value second adjustment parameter and a peak value time second adjustment parameter. Correspondingly, the second adjustment module is specifically configured to:

[0075] obtain a set base value, a set peak value and a set peak value time of the pulse current of the welding machine;

[0076] from the first time, based on the base value second adjustment value of the last pulse cycle and the base value second adjustment parameter, obtain the base value second adjustment value of each pulse cycle until the base value second adjustment value of the current pulse cycle is equal to the set base value;

[0077] from the first time, based on the peak value second adjustment value of the last pulse cycle and the peak value second adjustment parameter, obtain the peak value second adjustment value of each pulse cycle until the peak value second adjustment value of the current pulse cycle is equal to the set peak value;

[0078] from the first time, based on the peak value time second adjustment value of the last pulse cycle and the peak value time second adjustment parameter, obtain the peak value time second adjustment value of each pulse cycle until the peak value time second adjustment value of the current pulse cycle is equal to the set peak value time;

[0079] The pulse current base value corresponding to the first moment is taken as the base value second adjustment value of the last pulse period of the first pulse period, the pulse current peak value corresponding to the first moment is taken as the peak value second adjustment value of the last pulse period of the first pulse period, and the pulse current peak time corresponding to the first moment is taken as the peak time second adjustment value of the last pulse period of the first pulse period.

[0080] In another specific embodiment, the second adjustment parameter group at least includes: a base value second adjustment period, a peak value second adjustment period and a peak time second adjustment period. Correspondingly, the second adjustment module 403 is specifically used for:

[0081] obtaining a set base value, a set peak value and a set peak time of the pulse current of the welding machine;

[0082] adjusting the base value of the pulse current according to the base value second adjustment period, so that the adjusted base value of the pulse current is equal to the set base value;

[0083] adjusting the peak value of the pulse current according to the peak value second adjustment period, so that the adjusted peak value of the pulse current is equal to the set peak value;

[0084] adjusting the peak time of the pulse current according to the peak time second adjustment period, so that the adjusted peak time of the pulse current is equal to the set peak time.

[0085] Specifically, the pulse welding arc striking control device, on the basis of Figure 4 further comprises:

[0086] The third adjustment module is used for:

[0087] If it is judged that the feedback voltage value is less than or equal to the set voltage value, the base value, the peak value and the peak time of the pulse current are adjusted based on the preset second adjustment parameter group after the thermovoltage application ends until the arc striking stage ends.

[0088] The embodiment of the present application further provides a computer device, Figure 5 is a schematic diagram of the computer device in the embodiment of the present application, and the computer device can realize all steps in the pulse welding arc striking control method in the above-mentioned embodiment. The computer device specifically includes the following contents:

[0089] a processor 501, a memory 502, a communications interface 503 and a communications bus 504;

[0090] The processor 501, the memory 502 and the communications interface 503 complete mutual communication through the communications bus 504; the communications interface 503 is used for realizing information transmission between related devices;

[0091] The processor 501 is configured to invoke a computer program in the memory 502, and the processor implements the pulse welding arc striking control method in the above embodiments when executing the computer program.

[0092] In summary, the pulse welding arc striking control method and device provided by the embodiments have the following advantages:

[0093] From the start of wire feeding to the first time, the base value, the peak value and the peak time of the pulse current are adjusted based on the preset first adjustment parameter group; the wire feeding speed at the first time is equal to the preset wire feeding speed; at the first time, the feedback voltage value is obtained, and it is determined whether the feedback voltage value is greater than the set voltage value; if it is determined that the feedback voltage value is greater than the set voltage value, from the first time to the end of the arc striking stage, the base value, the peak value and the peak time of the pulse current are adjusted based on the preset second adjustment parameter group. By adjusting the pulse current based on the first adjustment parameter group in the arc striking slow wire feeding stage and the wire feeding ramping stage, and determining whether the feedback voltage exceeds the set voltage when the real-time wire feeding speed reaches the preset value, if it exceeds, the pulse current is adjusted based on the second adjustment parameter group, so that the parameters of the pulse arc striking current smoothly transition to the welding process set value, the arc striking is smooth, the welding spatter is reduced, the welding defects are reduced, and the welding quality is improved.

[0094] Although the present application provides the method operation steps as described in the embodiments or flowcharts, more or less operation steps can be included based on conventional or non-creative labor. The order of steps listed in the embodiments is only one of the many execution orders, and does not represent the only execution order. When the device or client product is executed in practice, the method order shown in the embodiments or the drawings can be executed in sequence or in parallel (for example, in a parallel processor or multi-thread processing environment).

[0095] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, device (system) or computer program product. Therefore, the embodiments of the present application can be in the form of a complete hardware embodiment, a complete software embodiment or an embodiment combining software and hardware aspects. Moreover, the present application can be in the form of a computer program product implemented on one or more computer usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

[0096] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart or flows and / or block diagram block or blocks. Figure 1 one or more flow or flows and / or block diagram block or blocks. Figure 1 one or more flow or flows and / or block diagram block or blocks.

[0097] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart or flows and / or block diagram block or blocks. Figure 1 one or more flow or flows and / or block diagram block or blocks. Figure 1 one or more flow or flows and / or block diagram block or blocks.

[0098] The computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart or flows and / or block diagram block or blocks. Figure 1 one or more flow or flows and / or block diagram block or blocks. Figure 1 one or more flow or flows and / or block diagram block or blocks.

[0099] Each of the embodiments in the present specification is described in a progressive manner, and the same or similar parts between each embodiment can be understood by referring to each other, and each embodiment mainly explains the difference from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant part can be understood by referring to the part of the method embodiment. In this document, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations.

[0100] It should be noted that the embodiments and features of the present application can be combined with each other, if there is no conflict. The present application is not limited to any single aspect or embodiment, nor to any single combination and / or permutation of aspects / embodiments. Rather, the present application is directed to each individual aspect or embodiment and every combination and / or permutation of aspects / embodiments, even if that combination and / or permutation is not explicitly disclosed herein. While examples are described in this application, the subject matter of this application includes any implementation of the teachings of this application. Moreover, while examples are described in this application, the subject matter of this application includes any implementation of the teachings of this application. Furthermore, while one or more examples are disclosed herein, still other examples will become apparent to those skilled in the art upon reading the foregoing description and appended claims. Accordingly, the examples disclosed herein and the appended claims should not be construed as limiting, but rather, the proper scope of the application is to be determined according to the appended claims.

[0101] Finally, it should be noted that the above-described embodiments are merely intended to illustrate the technical solutions of the present application, but not to limit the present application; even though the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some or all of the technical features can be replaced by equivalent replacements; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application, and should be covered in the scope of the claims and the specification of the present application.

Claims

1. A pulse welding arc initiation control method, characterized in that, include: From the start of wire feeding until the first moment, the base value, peak value, and peak time of the pulse current are adjusted based on the preset first adjustment parameter group; The wire feeding speed at the first moment is equal to the preset wire feeding speed; At the first moment, a feedback voltage value is acquired, and it is determined whether the feedback voltage value is greater than a set voltage value. If the feedback voltage value is determined to be greater than the set voltage value, from the first moment until the end of the arc ignition stage, the base value, peak value and peak time of the pulse current are adjusted based on the preset second adjustment parameter group. The first set of adjustment parameters includes at least: Base value first adjustment parameter, peak value first adjustment parameter, and peak time first adjustment parameter; Based on a preset first set of adjustment parameters, the base value, peak value, and peak time of the pulse current are adjusted, including: Obtain the set base value, set peak value, and set peak time of the pulse current of the welding machine; The first adjustment parameter of the base value is superimposed on the set base value of the pulse current to obtain the first adjustment value of the base value of the pulse current; The first peak value adjustment parameter is superimposed on the set peak value of the pulse current to obtain the first peak value adjustment value of the pulse current; The first adjustment parameter of the peak time is superimposed on the set peak time of the pulse current to obtain the first adjustment value of the peak time of the pulse current.

2. The pulse welding arc initiation control method according to claim 1, characterized in that, The second set of adjustment parameters includes at least: Base value second adjustment parameter, peak value second adjustment parameter, and peak time second adjustment parameter; From the first moment until the end of the arc ignition phase, based on the preset second adjustment parameter group, the base value, peak value, and peak time of the pulse current are adjusted, including: Obtain the set base value, set peak value, and set peak time of the pulse current of the welding machine; Starting from the first moment, based on the base value second adjustment value of the previous pulse cycle and the base value second adjustment parameter, the base value second adjustment value of each pulse cycle is obtained until the base value second adjustment value of the current pulse cycle is equal to the set base value; Starting from the first moment, based on the peak value of the previous pulse cycle and the peak value of the second adjustment parameter, the peak value of the second adjustment parameter is obtained for each pulse cycle until the peak value of the second adjustment parameter of the current pulse cycle is equal to the set peak value. Starting from the first moment, based on the second adjustment value of the peak time of the previous pulse cycle and the second adjustment parameter of the peak time, the second adjustment value of the peak time of each pulse cycle is obtained until the second adjustment value of the peak time of the current pulse cycle is equal to the set peak time. Specifically, the base value of the pulse current corresponding to the first moment is used as the base value of the previous pulse period of the first pulse period as the second adjustment value, the peak value of the pulse current corresponding to the first moment is used as the peak value of the previous pulse period as the second adjustment value, and the peak time of the pulse current corresponding to the first moment is used as the peak time of the previous pulse period as the second adjustment value.

3. The pulse welding arc initiation control method according to claim 1, characterized in that, The second set of adjustment parameters includes at least: Second adjustment period for base value, second adjustment period for peak value, and second adjustment period for peak time; From the first moment until the end of the arc ignition phase, based on the preset second adjustment parameter group, the base value, peak value, and peak time of the pulse current are adjusted, including: Obtain the set base value, set peak value, and set peak time of the pulse current of the welding machine; According to the second adjustment cycle of the base value, the base value of the pulse current is adjusted so that the base value of the adjusted pulse current is equal to the set base value; According to the second adjustment cycle of the peak value, the peak value of the pulse current is adjusted so that the peak value of the adjusted pulse current is equal to the set peak value; According to the second adjustment cycle of the peak time, the peak time of the pulse current is adjusted so that the peak time of the adjusted pulse current is equal to the set peak time.

4. The pulse welding arc initiation control method according to claim 1, characterized in that, Also includes: If the feedback voltage value is determined to be less than or equal to the set voltage value, after the thermal voltage application ends and until the arc ignition stage ends, the base value, peak value and peak time of the pulse current are adjusted based on the preset second adjustment parameter group. The thermal voltage application refers to the voltage superimposed on the set voltage during the arc ignition stage.

5. A pulse welding arc ignition control device, characterized in that, include: The first adjustment module is used to adjust the base value, peak value and peak time of the pulse current based on a preset first adjustment parameter group from the start of wire feeding until the first moment. The wire feeding speed at the first moment is equal to the preset wire feeding speed; The feedback voltage judgment module is used to acquire the feedback voltage value at the first moment and determine whether the feedback voltage value is greater than a set voltage value. The second adjustment module is used to adjust the base value, peak value and peak time of the pulse current based on a preset second adjustment parameter group if it is determined that the feedback voltage value is greater than the set voltage value, starting from the first moment until the end of the arc ignition stage. The first set of adjustment parameters includes at least: Base value first adjustment parameter, peak value first adjustment parameter, and peak time first adjustment parameter; The first adjustment module is specifically used for: Obtain the set base value, set peak value, and set peak time of the pulse current of the welding machine; The first adjustment parameter of the base value is superimposed on the set base value of the pulse current to obtain the first adjustment value of the base value of the pulse current; The first peak value adjustment parameter is superimposed on the set peak value of the pulse current to obtain the first peak value adjustment value of the pulse current; The first adjustment parameter of the peak time is superimposed on the set peak time of the pulse current to obtain the first adjustment value of the peak time of the pulse current.

6. The pulse welding arc ignition control device according to claim 5, characterized in that, The second set of adjustment parameters includes at least: Base value second adjustment parameter, peak value second adjustment parameter, and peak time second adjustment parameter; The second adjustment module is specifically used for: Obtain the set base value, set peak value, and set peak time of the pulse current of the welding machine; Starting from the first moment, based on the base value second adjustment value of the previous pulse cycle and the base value second adjustment parameter, the base value second adjustment value of each pulse cycle is obtained until the base value second adjustment value of the current pulse cycle is equal to the set base value; Starting from the first moment, based on the peak value of the previous pulse cycle and the peak value of the second adjustment parameter, the peak value of the second adjustment parameter is obtained for each pulse cycle until the peak value of the second adjustment parameter of the current pulse cycle is equal to the set peak value. Starting from the first moment, based on the second adjustment value of the peak time of the previous pulse cycle and the second adjustment parameter of the peak time, the second adjustment value of the peak time of each pulse cycle is obtained until the second adjustment value of the peak time of the current pulse cycle is equal to the set peak time. Specifically, the base value of the pulse current corresponding to the first moment is used as the base value of the previous pulse period of the first pulse period as the second adjustment value, the peak value of the pulse current corresponding to the first moment is used as the peak value of the previous pulse period as the second adjustment value, and the peak time of the pulse current corresponding to the first moment is used as the peak time of the previous pulse period as the second adjustment value.

7. The pulse welding arc ignition control device according to claim 5, characterized in that, The second set of adjustment parameters includes at least: Second adjustment period for base value, second adjustment period for peak value, and second adjustment period for peak time; The second adjustment module is specifically used for: Obtain the set base value, set peak value, and set peak time of the pulse current of the welding machine; According to the second adjustment cycle of the base value, the base value of the pulse current is adjusted so that the base value of the adjusted pulse current is equal to the set base value; According to the second adjustment cycle of the peak value, the peak value of the pulse current is adjusted so that the peak value of the adjusted pulse current is equal to the set peak value; According to the second adjustment cycle of the peak time, the peak time of the pulse current is adjusted so that the peak time of the adjusted pulse current is equal to the set peak time.

8. The pulse welding arc ignition control device according to claim 5, characterized in that, Also includes: The third adjustment module is used for: If the feedback voltage value is determined to be less than or equal to the set voltage value, after the thermal voltage application ends and until the arc ignition stage ends, the base value, peak value and peak time of the pulse current are adjusted based on the preset second adjustment parameter group. The thermal voltage application refers to the voltage superimposed on the set voltage during the arc ignition stage.

9. A computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the pulse welding arc initiation control method according to any one of claims 1 to 4.

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