阅读说明：本技术 一种脉冲焊接的控制方法及装置 (control method and device for pulse welding ) 是由 韩晓辉 李帅贞 叶结和 刘勇 于 2019-09-04 设计创作，主要内容包括：本发明实施例提供一种脉冲焊接的控制方法及装置,包括：在脉冲焊接过程中,对短路计数周期内的短路次数进行计数,对焊接周期内的短路时间进行计时；以所述短路次数或短路时间为决策依据,在下一脉冲周期对焊机的焊接参数进行调整。本发明的脉冲焊接的控制方法及装置以检测到的短路发生的次数和短路发生的时间为依据,短路次数越多,短路发生的时间越长,则认为电弧长度越短,通过自动调整焊接电压来增加电弧长度,减少短路的发生概率,进而达到减少飞溅的目的。(The embodiment of the invention provides a control method and a device for pulse welding, which comprises the following steps: in the pulse welding process, counting the short circuit times in a short circuit counting period, and timing the short circuit time in the welding period; and adjusting the welding parameters of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis. The control method and the device for pulse welding are based on the detected times of short circuit occurrence and the time of short circuit occurrence, the more the times of short circuit are, the longer the time of short circuit occurrence is, the shorter the arc length is considered, the welding voltage is automatically adjusted to increase the arc length, reduce the occurrence probability of short circuit, and further achieve the purpose of reducing splashing.)

1. A method of controlling pulse welding, comprising:

In the pulse welding process, counting the short circuit times in a short circuit counting period, and timing the short circuit time in the welding period;

Adjusting the welding parameters of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis; wherein the content of the first and second substances,

The short circuit counting period is a statistical time period for counting the short circuit times, and the short circuit times are continuously counted in the statistical time period; the welding period is the minimum unit of welding time.

2. A control method of pulse welding according to claim 1, characterized in that said welding parameter is a welding voltage; taking the short-circuit times or the short-circuit time as a decision basis, adjusting the welding voltage of the welding machine in the next pulse period comprises the following steps:

When a short circuit counting period is finished, adjusting the welding voltage of the welding machine when the continuous short circuit frequency in the short circuit counting period reaches a first threshold value; or

And when the short-circuit time in the welding cycle reaches a second threshold value at the end of the primary welding cycle, adjusting the welding voltage of the welding machine.

3. The control method of pulse welding according to claim 2, wherein the adjustment variation amount at the time of adjusting the welding voltage of the butt welder is related to the number of short circuits and the short circuit time:

U₁＝U+a*t+b*K；

Wherein, U₁For the welding voltage after adjustment, U is the welding voltage before adjustment, t is the short circuit time, K is the number of short circuits, and a, b are parameters relating to the welding conditions including the wire diameter, the wire type, and the shielding gas type.

4. a control method of pulse welding according to claim 1, characterized in that said welding parameter is a pulse peak current; and taking the short-circuit times or the short-circuit time as a decision basis, and adjusting the pulse peak current of the welding machine in the next pulse period comprises the following steps:

When a short circuit counting period is finished, adjusting the pulse peak current of the welding machine when the continuous short circuit frequency in the short circuit counting period reaches a first threshold value; or

And when the short circuit time in the welding period reaches a second threshold value at the end of one welding period, adjusting the pulse peak current of the welding machine.

5. A control method of pulse welding according to claim 4, wherein the adjustment variation amount at the time of adjustment of the pulse peak current of the butt welder is related to the number of short circuits and the short circuit time:

I_P1＝I_P+c*t+d*K；

Wherein, I_P1For adjusting the pulse peak current after, I_Pfor adjusting the pulse peak current, t is the short-circuit time, K is the number of short-circuits, and c and d are parameters related to the welding conditions including the diameter of the welding wire, the type of the welding wire and the type of the shielding gas.

6. A control method of pulse welding according to claim 1, characterized in that said welding parameters are welding voltage and pulse peak current; taking the short-circuit times or the short-circuit time as a decision basis, adjusting the welding voltage and the pulse peak current of the butt welding machine in the next pulse period comprises the following steps:

when a short circuit counting period is finished, adjusting the welding voltage and the pulse peak current of the welding machine when the continuous short circuit frequency in the short circuit counting period reaches a first threshold value; or

And at the end of one welding period, when the short-circuit time in the welding period reaches a second threshold value, adjusting the welding voltage and the pulse peak current of the welding machine.

7. The control method of pulse welding according to claim 6, wherein the adjustment change amounts of the welding voltage and the pulse peak current of the butt welder when adjusting are related to the number of short circuits and the short circuit time:

U₁＝U+a*t+b*K；

I_P1＝I_P+c*t+d*K；

Wherein, U₁For welding voltage after adjustment, U is welding voltage before adjustment, t is short-circuit time, I_P1for adjusting the pulse peak current after, I_PIn order to adjust the pulse peak current before adjustment, K is the number of short circuits, and a, b, c, d are parameters related to welding conditions including the diameter of the welding wire, the type of welding wire, and the type of shielding gas.

8. A control method of pulse welding as set forth in claim 1, characterized in that the pulse welding is continued with the original welding parameters in the next pulse period based on the number of short circuits or the short circuit time.

9. The control method of pulse welding according to claim 1, wherein said counting the number of short circuits within a short circuit count period comprises:

The number of times of occurrence of short circuits is detected by short circuit judgment.

10. A method of controlling pulse welding as set forth in claim 1, wherein said timing a short circuit time within a welding cycle comprises:

and calculating the short-circuit time according to the time difference between the short-circuit judgment and the arcing judgment.

11. a control device for pulse welding, comprising:

the short-circuit times and time calculating unit is used for counting the short-circuit times in a short-circuit counting period and timing the short-circuit time in the welding period in the pulse welding process;

The welding parameter adjusting unit is used for adjusting the welding parameters of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis; wherein the content of the first and second substances,

The short circuit counting period is a statistical time period for counting the short circuit times, and the short circuit times are continuously counted in the statistical time period; the welding period is the minimum unit of welding time.

12. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of controlling pulse welding according to any one of claims 1 to 10 are implemented by the processor when executing the program.

13. a non-transitory computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of a method of controlling pulse welding according to any one of claims 1 to 10.

14. a welding machine comprising an electronic device as claimed in claim 12.

Technical Field

The invention relates to the technical field of welding, in particular to a control method and device for pulse welding.

Background

generally, the pulse welding process adopts a dripping transition or a jet transition mode for welding, but in actual production and application, in order to reduce welding defects such as undercut tendency, the welding is carried out by adopting a low short arc length, so that the problem of welding spatter is caused. The welding spatter is the phenomenon that part of liquefied metal is splashed to the periphery of a molten pool due to the action of an electric arc force in the process of fusing a welding rod or a welding wire and a workpiece to be welded together during welding. Weld spatter can significantly affect the surface quality of the weldment, can affect the surface treatment of the weldment and subsequent attachment, and can also have an impact on the surrounding environment and the health of the welders. It is therefore desirable to reduce the spatter phenomenon as much as possible during the welding process.

Disclosure of Invention

the embodiment of the invention provides a control method and a control device for pulse welding, which are used for solving the defect that the pulse welding is easy to generate the splashing phenomenon in the prior art and realizing effective control on welding splashing.

In a first aspect, an embodiment of the present invention provides a control method for pulse welding, including:

in the pulse welding process, counting the short circuit times in a short circuit counting period, and timing the short circuit time in the welding period;

Adjusting the welding parameters of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis; wherein the content of the first and second substances,

The short circuit counting period is a statistical time period for counting the short circuit times, and the short circuit times are continuously counted in the statistical time period; the welding period is the minimum of the welding time

In a second aspect, an embodiment of the present invention provides a control apparatus for pulse welding, including:

The short-circuit times and time calculating unit is used for counting the short-circuit times in a short-circuit counting period and timing the short-circuit time in the welding period in the pulse welding process;

The welding parameter adjusting unit is used for adjusting the welding parameters of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis; wherein the content of the first and second substances,

The short circuit counting period is a statistical time period for counting the short circuit times, and the short circuit times are continuously counted in the statistical time period; the welding period is the minimum unit of welding time.

In a third aspect, an embodiment of the present invention provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of the control method according to the pulse welding when executing the program.

In a fourth aspect, embodiments of the present invention provide a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a control method of pulse welding as described.

In a fifth aspect, embodiments of the present invention provide a welding machine including the electronic device.

according to the control method and the control device for pulse welding, provided by the embodiment of the invention, the detected times of short circuit occurrence and the time of short circuit occurrence are taken as the basis, the more the times of short circuit are, the longer the time of short circuit occurrence is, the shorter the arc length is, the longer the arc length is, the arc length is increased by increasing the welding voltage and the pulse peak current, the occurrence probability of short circuit is reduced, and the purpose of reducing splashing is further achieved.

drawings

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

FIG. 1 is a flow chart of a control method for pulse welding according to an embodiment of the present invention;

FIG. 2 is a flow chart of a control method for pulse welding according to another embodiment of the present invention;

FIG. 3 is a flow chart of a control method for pulse welding according to yet another embodiment of the present invention;

FIG. 4 is a waveform of welder current and voltage when a short circuit occurs;

FIG. 5 is a comparison graph of waveforms before and after adjusting the peak current and welding voltage of the welder pulse simultaneously;

FIG. 6 is a flowchart of a control method for pulse welding according to yet another embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a control apparatus for pulse welding according to an embodiment of the present invention;

Fig. 8 is a schematic physical structure diagram of an electronic device according to an embodiment of the present invention.

Detailed Description

in order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

the main reason for the generation of welding spatter is that the arc length is short, so that the molten drop contacts the molten pool without coming off the welding wire after being formed, and a short circuit is caused, the arc explosion force of the arc process generated after the short circuit is large, and the molten drop splashes around under the action of force, so that the welding spatter is formed. By analyzing the cause of the generation of the weld spatter, the applicant considered: if the arc length can be extended, providing sufficient space for droplet shedding can reduce or even avoid short circuiting, which can help reduce spatter generation.

In parameters related to welding, increasing voltage can obviously increase arc length, is beneficial to the transition of molten drops and reduces the occurrence probability of short circuit; meanwhile, the experiment finds that: the increase of the pulse peak current can increase the energy of the pulse peak stage, further increase the arc length of the peak stage, facilitate the smooth transition of molten drops after the peak stage, and further achieve the purpose of reducing splashing. Based on the above findings, the present application achieves the purpose of reducing spatter by adjusting the voltage and the pulse peak current.

It should be noted that the spatter reduction involved in the embodiments of the present invention includes two aspects, namely, reducing the number of spatters generated during welding, and reducing the size of droplet particles when spatters occur. Unless otherwise specifically stated, the reduction of spatter in the embodiments of the present invention includes both aspects.

Fig. 1 is a flowchart of a control method for pulse welding according to an embodiment of the present invention, and to solve the above technical problem, as shown in fig. 1, the control method for pulse welding according to the embodiment of the present invention includes:

Step 101, in the pulse welding process, counting the short circuit times in a short circuit counting period, and timing the short circuit time in the welding period;

when counting the short-circuit times, the counting cannot be continuously carried out indefinitely, otherwise, the subsequent judgment on whether the short-circuit times reach the threshold value is meaningless. Therefore, a short circuit counting period is set in this step, the short circuit counting period is a statistical time period for counting the number of short circuits, the number of short circuits is continuously counted in this time period, and once one short circuit counting period is finished, the number of short circuits needs to be counted again from zero after the next short circuit counting period is started. The length of the short circuit counting period is related to the external conditions of welding, and if a welding seam to be welded is longer, the short circuit counting period can be set to be relatively longer, and conversely, if the welding seam to be welded is shorter, the short circuit counting period can be set to be relatively shorter. In an embodiment of the present invention, the short circuit count period may be set to 1 second.

The welding period is a minimum unit of welding time, the length of the welding period is related to the period of the pulse current, and generally one welding period corresponds to one period of the pulse current. For example, if the frequency of the pulse current is 50Hz, one welding cycle is 20ms or 0.02 s; if the frequency of the pulse current is 1000Hz, one welding cycle is 1ms or 0.001 s.

In this step, the number of times of short circuit occurrence can be detected by short circuit judgment, and the time of short circuit occurrence (i.e., short circuit time) can be calculated by the time difference between short circuit judgment and arc judgment. Specifically, the voltage at the time of short circuit in the welding process is a short-circuit voltage, and the voltage at the time of arc ignition is an arc ignition voltage; fig. 4 is a waveform diagram of current and voltage of the welding machine when a short circuit occurs, and as shown in fig. 4, because the voltage drops sharply during the short circuit and rises sharply during the arc burning, the voltage values of two adjacent inversion periods are collected through the inside of the welding machine, and then the change slope of the voltage is calculated, and whether the short circuit or the arc burning occurs can be judged by matching the change slope of the voltage with the voltage value at the moment. If the voltage slope is lower than the short determination slope. When the voltage value is lower than the short-circuit voltage, judging that the short circuit occurs; if the voltage slope is higher than the arcing determination slope and the voltage value is higher than the arcing voltage at this time, it is considered that arcing has occurred. When short circuit occurs, the timer starts to time until the arc is generated, so as to calculate the time of short circuit; when short circuit occurs, the short circuit counter starts to count the short circuit times.

the short circuit judgment slope involved in the short circuit judgment is related to welding conditions, such as the diameter of a welding wire, the type of the welding wire, the welding position, the type of shielding gas and other factors, and specific values under certain welding conditions can be obtained through experiments. The arc judgment slope involved in the arc judgment is related to welding conditions, such as the diameter of a welding wire, the type of the welding wire, the welding position, the type of shielding gas and other factors, and specific values under certain welding conditions can be obtained through experiments.

And step 102, adjusting the welding voltage of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis.

In this step, there are two decision bases for adjusting the welding voltage of the welder, one is the short-circuit frequency, and the other is the short-circuit time. The two decision bases are independent from each other, and the welding voltage of the welding machine can be adjusted as long as one of the two decision bases is met.

And the decision operation taking the short circuit times as a decision basis is carried out at the end of a short circuit counting period, and if the continuous short circuit times in the short circuit counting period reach a first threshold value, the welding voltage of the welding machine can be adjusted. The size of the first threshold is set to be related to welding conditions, such as the diameter of a welding wire, the type of the welding wire, the welding position, the type of shielding gas and other factors, and specific values under certain welding conditions can be obtained through experiments. In the embodiment of the present invention, the size of the first threshold is 3 times.

And the decision operation taking the short-circuit time as a decision basis is carried out at the end of one welding period, and if the short-circuit time in the welding period reaches a second threshold value, the welding voltage of the welding machine can be adjusted. The setting of the second threshold value is related to welding conditions, such as the diameter of a welding wire, the type of the welding wire, the welding position, the type of shielding gas and other factors, and specific values under certain welding conditions can be obtained through experiments. In the embodiment of the present invention, the size of the second threshold is 0.3 milliseconds.

the quantity relation exists between the variable quantity of welding voltage adjustment of the welding machine and the short-circuit times and the short-circuit time, and taking a stainless steel welding wire with the diameter of 1.2mm as an example, when the short-circuit time is 0.5ms, 1ms and 1.5ms, or when the continuous short-circuit times is 5 times, 10 times and 15 times, the welding voltage adjustment values are respectively 0.2V, 0.4V and 0.6V, namely:

U₁＝U+0.4t+0.04K；

Wherein, U₁For the welding voltage after adjustment, U is the welding voltage before adjustment, t is the short circuit time, and K is the number of short circuits.

the correspondence between the short-circuit time and the number of short-circuits and the welding voltage is not limited to the relationship given by the above data, and if the welding conditions, such as the diameter of the welding wire, the type of the shielding gas, etc., change, the correspondence also changes, but the trend of the change is the same as or similar to the above relationship.

The control method of the pulse welding takes the detected times of the occurrence of the short circuit and the time of the occurrence of the short circuit as the basis, the more the times of the short circuit are, the longer the time of the occurrence of the short circuit is, the shorter the arc length is considered, the welding voltage is automatically adjusted to increase the arc length, the occurrence probability of the short circuit is reduced, and the purpose of reducing the splashing is further achieved.

Based on any one of the above embodiments, fig. 2 is a flowchart of a control method for pulse welding according to another embodiment of the present invention, as shown in fig. 2, the method includes:

step 201, in the pulse welding process, counting the short circuit times in a short circuit counting period, and timing the short circuit time in the welding period;

In this step, how to count the number of short circuits in the short circuit count period and how to time the short circuit time in the welding period is not different from the description of step 101, and therefore, the description is not repeated in this step.

And step 202, adjusting the pulse peak current of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis.

In this step, the specific process of how to make the decision based on the number of short circuits or the short circuit time is not different from the related description of step 102, and therefore, the description is not repeated in this step.

When the pulse peak current of the butt welding machine needs to be adjusted, the adjustment variation of the pulse peak current has a quantitative relation with the short-circuit times and the short-circuit time, and taking a stainless steel welding wire with the diameter of 1.2mm as an example, when the short-circuit time is 0.5ms, 1ms and 1.5ms, or when the continuous short-circuit times are 5 times, 10 times and 15 times, the adjustment variation of the pulse peak current is 15A, 30A and 45A respectively. Namely:

I_P1＝I_P+30t+3K；

Wherein, I_P1For adjusting the pulse peak current after, I_PTo adjust the pulse peak current before, t is the short circuit time, and K is the number of short circuits.

The correspondence between the short-circuiting time and the number of short-circuiting times and the pulse peak current is not limited to the relationship given by the above data, and if the welding conditions, such as the wire diameter, the wire type, the shielding gas type, etc., change, the correspondence also changes, but the trend of the change is the same as or similar to the above relationship.

The control method of the pulse welding takes the detected times of the occurrence of the short circuit and the time of the occurrence of the short circuit as the basis, the more the times of the short circuit are, the longer the time of the occurrence of the short circuit is, the shorter the arc length is considered, the arc length is increased by automatically adjusting the pulse peak current, the occurrence probability of the short circuit is reduced, and the purpose of reducing the splashing is further achieved.

based on any one of the above embodiments, fig. 3 is a flowchart of a control method for pulse welding according to another embodiment of the present invention, as shown in fig. 3, the method includes:

step 301, in the pulse welding process, counting the short circuit times in a short circuit counting period, and timing the short circuit time in the welding period;

In this step, how to count the number of short circuits in the short circuit count period and how to time the short circuit time in the welding period is not different from the description of step 101, and therefore, the description is not repeated in this step.

And step 302, adjusting the pulse peak current and the welding voltage of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis.

In this step, the specific process of how to make the decision based on the number of short circuits or the short circuit time is not different from the related description of step 102, and therefore, the description is not repeated in this step.

when the pulse peak current and the welding voltage of the welding machine need to be adjusted, the adjustment variation of the pulse peak current and the welding voltage has a quantitative relation with the short-circuit times and the short-circuit time, taking 1.2mm diameter stainless steel welding wires as an example, when the short-circuit time is 0.5ms, 1ms and 1.5ms, or when the continuous short-circuit times is 5 times, 10 times and 15 times, the adjustment of the pulse peak current is respectively 15A, 30A and 45A, and the adjustment value of the welding voltage is respectively 0.2V, 0.4V and 0.6V. Namely:

I_P1＝I_P+30t+3K；U₁＝U+0.4t+0.04K；

wherein, I_P1for adjusting the pulse peak current after, I_PTo adjust the peak current of the previous pulse, U₁for the welding voltage after adjustment, U is the welding voltage before adjustment, t is the short circuit time, and K is the number of short circuits.

the correspondence between the short-circuiting time and the number of short-circuiting times and the pulse peak current and the welding voltage is not limited to the one given by the above data, and if the welding conditions, such as the wire diameter, the wire type, the shielding gas type, etc., change, the correspondence also changes, but the trend of the change is the same as or similar to the above-mentioned one.

FIG. 5 is a comparison of waveforms before and after simultaneous adjustment of the welder pulse peak current and welding voltage, where U₁For welding voltage after regulation, U is welding voltage before regulation, I_P1For adjusting the pulse peak current after, I_PTo adjust the peak current of the previous pulse.

The control method of the pulse welding takes the detected times of the occurrence of the short circuit and the time of the occurrence of the short circuit as the basis, the more the times of the short circuit are, the longer the time of the occurrence of the short circuit is, the shorter the arc length is considered, the arc length is increased by automatically adjusting the welding voltage and the pulse peak current, the occurrence probability of the short circuit is reduced, and the purpose of reducing the splashing is further achieved.

Based on any of the above embodiments, fig. 6 is a flowchart of a control method for pulse welding according to another embodiment of the present invention, and as shown in fig. 6, a control method for pulse welding according to an embodiment of the present invention includes:

Step 601, in the pulse welding process, counting the short circuit times in a short circuit counting period, and timing the short circuit time in the welding period;

Step 602, pulse welding is continuously performed with the original welding parameters in the next pulse period based on the number of short circuits or the short circuit time.

the process of making a decision based on the number of short circuits or the short circuit time is described in any of the above embodiments, and when the number of consecutive short circuits in the short circuit counting period does not reach the first threshold and the short circuit time in the welding period does not reach the second threshold, the welder keeps the original welding parameters, such as the welding voltage and the pulse peak current, and continues to perform pulse welding.

Based on any of the above embodiments, fig. 7 is a schematic structural diagram of a control device for pulse welding according to an embodiment of the present invention, and as shown in fig. 7, the control device includes:

a short-circuit frequency and time calculating unit 701, configured to count the short-circuit frequency in a short-circuit counting period and time the short-circuit time in the welding period in the pulse welding process;

A welding parameter adjusting unit 702, configured to adjust a welding parameter of the welding machine in a next pulse period according to the number of short circuits or the short circuit time.

Based on any of the above embodiments, fig. 8 is a schematic physical structure diagram of an electronic device, and as shown in fig. 8, the electronic device may include: a processor (processor)810, a communication Interface 820, a memory 830 and a communication bus 840, wherein the processor 810, the communication Interface 820 and the memory 830 communicate with each other via the communication bus 840. The processor 810 may call logic instructions in the memory 830 to perform the following method: in the pulse welding process, counting the short circuit times in a short circuit counting period, and timing the short circuit time in the welding period; and adjusting the welding parameters of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis.

in addition, the logic instructions in the memory 830 may be implemented in software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Based on any one of the above embodiments, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, the computer program being implemented by a processor to execute the control method for pulse welding provided by the above embodiments, for example, the method includes: in the pulse welding process, counting the short circuit times in a short circuit counting period, and timing the short circuit time in the welding period; and adjusting the welding parameters of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis.

Based on any one of the above embodiments, an embodiment of the present invention further provides a welding machine, which includes the electronic device, and under the control of the electronic device, the welding machine counts the number of short circuits in a short circuit counting period and times the short circuit time in the welding period in the pulse welding process; and adjusting the welding parameters of the welding machine in the next pulse period by taking the short-circuit times or the short-circuit time as a decision basis.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.