A welding control parameter adjustment method, electronic device, and storage medium

Abstract

The application provides a welding control parameter adjustment method, an electronic device and a storage medium. The method comprises the following steps: determining a target current frequency and a target thrust current value according to the short circuit duration of a direct current welding machine during welding work in a first time period; determining a key current frequency according to the difference between each adjustment current frequency and the target current frequency; determining a key thrust current value according to the difference between each adjustment thrust current value and the target thrust current value; adjusting the output frequency and the thrust current value of the welding current of the direct current welding machine to the key current frequency and the key thrust current value; and fine-tuning the output frequency and the thrust current value of the welding current of the direct current welding machine according to the short circuit duration of the positive and negative electrodes of the direct current welding machine during welding work in a second time period, so that the short circuit duration of the direct current welding machine during welding work is maintained within a preset duration range, manual adjustment by workers is not required, and the data adjustment accuracy is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of welding, in particular to a welding control parameter adjustment method, an electronic device and a storage medium. BACKGROUND

[0002] When the direct current welding machine is working, the worker needs to manually adjust the output frequency of the thrust current and the welding current of the direct current welding machine according to the real-time short circuit condition between the positive and negative poles of the direct current welding machine during the welding work, so that the short circuit duration of the direct current welding machine is within the set duration range (the short circuit duration of the positive and negative poles of the direct current welding machine is the duration of the welding rod connected to the direct current welding machine sticking to the welding workpiece during welding, and the sticking duration is too short, which may cause incomplete fusion of the weld, and the strength does not meet the standard; if the sticking duration is too long, it may cause overheating, burning or deformation of the weld, which will also reduce the welding quality of the welding workpiece, therefore, in the welding work of the direct current welding machine, it is necessary to control the sticking duration of the welding rod within a reasonable duration range), so as to ensure the welding quality of the welding workpiece. This method of manually adjusting the parameters of the direct current welding machine by the worker is too dependent on the professional level of the worker. For workers with strong professional level, they can manually adjust the control parameters of the direct current welding machine according to their work experience, but for workers with average professional level, the welding quality of the welding workpiece will be poor to a large extent due to the failure to adjust the control parameters of the direct current welding machine to the appropriate range. Therefore, this method of manually adjusting the control parameters of the direct current welding machine by the worker has high limitations, and the difference in professional level of each worker will lead to the difference in the adjustment of the control parameters, thereby affecting the welding quality of the welding workpiece. SUMMARY

[0003] To solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0004] According to one aspect of the present application, a welding control parameter adjustment method is provided, which is applied to a direct current welding machine.

[0005] The welding control parameter adjustment method comprises:

[0006] Step S100, determining the target current frequency and the target thrust current value of the direct current welding machine according to the short circuit duration of the positive and negative poles of the direct current welding machine during the welding work in the first period and the corresponding welding rod type of the welding rod connected to the direct current welding machine;

[0007] The starting time of the first period is the starting time of the first welding work of the direct current welding machine after connecting the welding rod; the ending time of the first period is the time when the target current frequency and the target thrust current value of the direct current welding machine are determined; and the duration of the first period is a preset duration.

[0008] Step S200, determining a key current frequency from the several adjustment current frequencies according to the difference between each adjustment current frequency corresponding to the electrode and the target current frequency;

[0009] Step S300, determining a key thrust current value from the several adjustment thrust current values according to the difference between each adjustment thrust current value corresponding to the electrode and the target thrust current value;

[0010] Step S400, adjusting the output frequency of the welding current of the DC welding machine to the key current frequency;

[0011] Step S500, adjusting the thrust current value of the DC welding machine to the key thrust current value;

[0012] Step S600, fine-tuning the output frequency of the welding current and the thrust current value of the DC welding machine according to the positive and negative electrode short-circuit duration of the DC welding machine during the second period, so that the corresponding short-circuit duration of the DC welding machine is within the preset duration range;

[0013] The starting moment of the second period is the moment when the thrust current value of the DC welding machine is adjusted to the key thrust current value; and the ending moment of the second period is the current moment.

[0014] According to another aspect of the present application, a non-transitory computer readable storage medium is provided, wherein the storage medium stores at least one instruction or at least one program, and the at least one instruction or the at least one program is loaded and executed by a processor to implement the welding control parameter adjustment method.

[0015] According to still another aspect of the present application, an electronic device is provided, comprising a processor and the aforementioned non-transitory computer readable storage medium.

[0016] The present application has at least the following beneficial effects:

[0017] The welding control parameter adjustment method of the present application first determines the target current frequency and the target thrust current value of the direct current welding machine according to the short-circuit duration of the positive and negative electrode short-circuit when the direct current welding machine performs welding work in the first time period and the electrode type corresponding to the electrode connected to the direct current welding machine, then determines the key current frequency from the several adjustment current frequencies according to the difference between each adjustment current frequency corresponding to the electrode and the target current frequency, and determines the key thrust current value from the several adjustment thrust current values according to the difference between each adjustment thrust current value corresponding to the electrode and the target thrust current value, and adjusts the output frequency of the welding current of the direct current welding machine to the key current frequency and adjusts the thrust current value of the direct current welding machine to the key thrust current value, so that the output frequency of the welding current and the thrust current value of the direct current welding machine can be quickly adjusted to the vicinity of the target current frequency and the target thrust current value without affecting the welding quality of the welding work, and then fine-tunes the output frequency of the welding current and the thrust current value of the direct current welding machine according to the short-circuit duration of the positive and negative electrode short-circuit when the direct current welding machine performs welding work in the second time period, so that the corresponding short-circuit duration of the direct current welding machine is within the duration range, and through the two-stage automatic adjustment of the output frequency of the welding current and the thrust current value of the direct current welding machine, the short-circuit duration of the direct current welding machine during welding work is maintained within the preset duration range, without the need for manual adjustment by the staff during welding work, improving the data adjustment accuracy while ensuring the welding quality. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 The flow chart of the welding control parameter adjustment method provided by the embodiments of the present application. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0021] The present application proposes a welding control parameter adjustment method applied to a direct current welding machine, as shown in the figure, the welding control parameter adjustment method comprises: Figure 1 As shown in the figure, the welding control parameter adjustment method comprises:

[0022] Step S100, according to the short-circuit duration of the positive and negative poles of the DC welder during the first period of welding work, and the electrode type corresponding to the electrode connected by the DC welder, determine the target current frequency and target thrust current value of the DC welder;

[0023] The starting time of the first period is the starting time of the first welding work of the DC welder after connecting the electrode, the ending time of the first period is the time when the target current frequency and target thrust current value of the DC welder are determined, and the duration of the first period is a preset duration.

[0024] The short-circuit duration of the positive and negative poles is the duration of electrode sticking, and the electrode type corresponding to the electrode is the type of the electrode classified according to the coating type or the welding current type, such as acid electrode, alkaline electrode, cellulose electrode, etc.

[0025] Further, step S100 includes steps S110-S120:

[0026] Step S110, in response to receiving the welding current value input by the user, determine the electrode type corresponding to the electrode according to the electrode end connected by the electrode on the DC welder;

[0027] Wherein, step S110 includes step S111:

[0028] Step S111, if the electrode is connected to the negative pole of the DC welder, determine the electrode type corresponding to the electrode as the first type;

[0029] If the electrode is connected to the positive pole of the DC welder, and there is an intervention of thrust current when the DC welder performs welding work in the first period, determine the electrode type corresponding to the electrode as the second type;

[0030] If the electrode is connected to the positive pole of the DC welder, and there is no intervention of thrust current when the DC welder performs welding work in the first period, determine the electrode type corresponding to the electrode as the third type.

[0031] As a feasible embodiment, the first type can be an acid electrode type, the second type can be an alkaline electrode type, and the third type can be a cellulose electrode type. Different electrode types correspond to different connection modes and intervention modes of the push current, so that the type of the electrode used by the user can be determined by connecting the electrode to the terminals of the DC welding machine by the user. Since there is a linear relationship between the length of the electrode and the welding current value, the shorter the electrode, the smaller the resistance of the electrode, and the larger the corresponding welding current value. Therefore, a mapping table can be set, which stores the mapping relationship between a plurality of electrode lengths and a plurality of welding current values, that is, when the electrode length is a certain value, the corresponding welding current value is a certain value. When the user inputs the welding current value, the corresponding electrode length is found in the mapping table according to the welding current value, so as to know the length of the electrode used by the user, thereby providing help for subsequent adjustment of the control parameters of the DC welding machine.

[0032] In step S120, the target current frequency and the target push current value corresponding to the DC welding machine are determined from the preset adjustment mapping table according to the electrode type corresponding to the electrode and the positive and negative electrode short circuit duration of the DC welding machine during the welding work in the first period.

[0033] The adjustment mapping table stores the mapping relationship between a plurality of short circuit durations, a plurality of electrode types, a plurality of current frequencies, and a plurality of push current values.

[0034] In step S120, the target current frequency and the target push current value corresponding to the DC welding machine are determined from the preset adjustment mapping table according to the electrode type corresponding to the electrode and the positive and negative electrode short circuit duration of the DC welding machine during the welding work in the first period.

[0035] In step S121, a plurality of short circuit durations when the positive and negative electrodes are short-circuited during the welding work of the DC welding machine in the first period are obtained to obtain a short circuit duration list A=(A1, A2,..., Ah). g ,...,A h ); wherein g=1, 2,..., h; h is the number of times of positive and negative electrode short circuit during the welding work of the DC welding machine in the first period; Agis the short circuit duration when the gth positive and negative electrode short circuit occurs during the welding work of the DC welding machine in the first period. g

[0036] In step S122, the target short circuit duration T0=∑Ag / h of the DC welding machine in the first period is determined according to the short circuit duration list A. h g=1 A g / h;

[0037] In step S123, a plurality of mapping lists stored in the adjustment mapping table are obtained to obtain a mapping list set B=(B1, B2,..., Bh). i ,...,B n ​); wherein, i=1, 2, …, n; n is the number of mapping lists stored in the adjustment mapping table; B i is the i-th mapping list stored in the adjustment mapping table;

[0038] B i = (B i1 , B i2 , B i3 , B i4 ); B i1 is the type identifier corresponding to the electrode type in the i-th mapping list; B i2 is the short-circuit duration range in the i-th mapping list; B i2 = (B i21 , B i22 ); B i21 is the minimum short-circuit duration corresponding to B i2 ; B i22 is the maximum short-circuit duration corresponding to B i2 ; B i3 is the current frequency in the i-th mapping list; B i4 is the thrust current value in the i-th mapping list;

[0039] Step S124, traverse the mapping list set B, if B i1 corresponds to the electrode type corresponding to the electrode, and B i21 <T0<T0 i22 , determine B i3 as the target current frequency corresponding to the DC welding machine, and determine B i4 as the target thrust current value corresponding to the DC welding machine.

[0040] The target current frequency and the target thrust current value are the target values that need to be adjusted for the output frequency and the thrust current value of the welding current of the DC welding machine, that is, the target current frequency is the output frequency of the welding current suitable for the welding work of the electrode determined according to the length and type of the electrode, and the target thrust current value is the thrust current value suitable for the welding work of the electrode determined according to the length and type of the electrode, that is, the DC welding machine can control the sticking duration of the connected electrode in the welding work within the preset duration range at the target current frequency and the target thrust current value.

[0041] Step S200, determine the key current frequency from the several adjustment current frequencies according to the difference between each adjustment current frequency corresponding to the electrode and the target current frequency;

[0042] Further, step S200 includes steps S210-S230:

[0043] Step S210, obtaining a plurality of adjustment current frequencies corresponding to the electrode type of the electrode to obtain an adjustment current frequency list C=(C1, C2,..., C j ,...,C k ); wherein, j=1, 2,..., k; k is the number of adjustment current frequencies corresponding to the electrode type of the electrode; C j is the jth adjustment current frequency corresponding to the electrode type of the electrode.

[0044] Step S220, determining the difference between the target current frequency and each adjustment current frequency according to the adjustment current frequency list C to obtain a current frequency difference list D=(D1, D2,..., D j ,...,D k ); wherein, D j is the difference between the target current frequency and the jth adjustment current frequency; D j =|C0-C j |; C0 is the target current frequency.

[0045] Step S230, determining the adjustment current frequency corresponding to MIN(D) as the key current frequency; wherein, MIN() is a preset minimum value determination function.

[0046] Step S300, determining the key thrust current value from a plurality of adjustment thrust current values according to the difference between each adjustment thrust current value and the target thrust current value corresponding to the electrode.

[0047] Further, step S300 includes steps S310-S330:

[0048] Step S310, obtaining a plurality of adjustment thrust current values corresponding to the electrode type of the electrode to obtain an adjustment thrust current value list E=(E1, E2,..., E r ,...,E t ); wherein, r=1, 2,..., t; t is the number of adjustment thrust current values corresponding to the electrode type of the electrode; E r is the rth adjustment thrust current value corresponding to the electrode type of the electrode.

[0049] Step S320, determining the difference between the target thrust current value and each adjustment thrust current value according to the adjustment thrust current value list E to obtain a thrust current difference list F=(F1, F2,..., F r ,...,F t ); wherein, F r is the difference between the target thrust current value and the rth adjustment thrust current value; F r =|E0-E r |; E0 is the target thrust current value.

[0050] Step S330, the MIN(F) corresponding adjustment thrust current value is determined as the key thrust current value.

[0051] The adjustment current frequency and the adjustment thrust current value are the output frequency and the thrust current value of the welding current preset according to the electrode type. The adjustment current frequency and the adjustment thrust current value corresponding to different electrode types are not the same. Since in the welding work of the electrode, when the output frequency and the thrust current value of the welding current of the DC welding machine need to be adjusted in a large range (i.e. when the adjustment range is large), the two control parameters cannot be slowly adjusted (if the control parameters are slowly adjusted, the welding state of the electrode will also be slowly changed, the welding effect will be affected, and the welding quality will be reduced), therefore, multiple adjustment current frequencies and adjustment thrust current values need to be set according to different electrode types, i.e. each adjustment current frequency and adjustment thrust current value can be represented as a gear, when the current frequency and the thrust current need to be adjusted, the corresponding adjustment current frequency and adjustment thrust current value can be adjusted first, so as to realize the instantaneous adjustment of the current frequency and the thrust current, and avoid the situation that the welding quality is reduced due to slow parameter adjustment.

[0052] Step S400, the output frequency of the welding current of the DC welding machine is adjusted to the key current frequency;

[0053] Step S500, the thrust current value of the DC welding machine is adjusted to the key thrust current value;

[0054] In this embodiment, the key current frequency and the key thrust current value are first determined, i.e. the key current frequency is the adjustment current frequency closest to the target current frequency, and the key thrust current value is the adjustment thrust current value closest to the target thrust current value, then the output frequency of the welding current of the DC welding machine is adjusted to the key current frequency, and the thrust current value of the DC welding machine is adjusted to the key thrust current value. This step can be regarded as the coarse adjustment of the control parameters of the DC welding machine. According to the preset mapping table, the key current frequency and the key thrust current value can be determined, and the output frequency and the thrust current value of the welding current of the DC welding machine can be instantaneously adjusted to the key current frequency and the key thrust current value. The user does not need to repeatedly debug the current frequency and the thrust current according to the work experience, which improves the adjustment accuracy of the control parameters and avoids the problem that the welding quality is reduced due to repeated debugging.

[0055] Step S600, according to the positive and negative short circuit time length of the DC welding machine during the welding work in the second period, the output frequency and the thrust current value of the welding current of the DC welding machine are fine adjusted to make the corresponding short circuit time length of the DC welding machine within the preset time length range;

[0056] The starting moment of the second period is the moment when the thrust current value of the DC welding machine is adjusted to the key thrust current value, and the ending moment of the second period is the current moment.

[0057] Further, the step S600 comprises steps S610-S620:

[0058] The step S610 is to acquire the short-circuit duration T1 of the DC welding machine when the positive and negative electrode short circuit occurs while the DC welding machine is welding in the second period.

[0059] The step S620 is to adjust the output frequency of the welding current of the DC welding machine to the target current frequency and adjust the thrust current value of the DC welding machine to the target thrust current value if T1 is within the preset duration range.

[0060] The step S621 is to acquire the standard current frequency and the standard thrust current value corresponding to the electrode type of the electrode if T1 is not within the preset duration range.

[0061] The step S622 is to adjust the output frequency of the welding current of the DC welding machine to the standard current frequency and adjust the thrust current value of the DC welding machine to the standard thrust current value, and in the adjustment process of the output frequency of the welding current and the thrust current value of the DC welding machine, the short-circuit duration of the positive and negative electrode of the DC welding machine when the short circuit occurs is acquired in real time, and the adjustment of the output frequency of the welding current and the thrust current value of the DC welding machine is stopped until the short-circuit duration is within the preset duration range.

[0062] After the output frequency of the welding current and the thrust current value of the DC welding machine are adjusted to the key current frequency and the key thrust current value (i.e. the control parameters of the DC welding machine are coarsely adjusted), in order to make the sticking duration of the electrode within the preset duration range, the control parameters of the DC welding machine need to be finely adjusted (i.e. finely adjusted) in real time according to the acquired short-circuit duration of the DC welding machine. Since the output frequency of the welding current and the thrust current value of the DC welding machine are close to the target current frequency and the target thrust current value after coarse adjustment, and the amplitude of fine adjustment of the control parameters of the DC welding machine is also small, even if the control parameters of the DC welding machine are slowly fine-tuned, the influence on the welding quality is small, and the fine adjustment control of the control parameters of the DC welding machine is also automatically performed without the intervention of the user, thus further improving the adjustment accuracy of the control parameters.

[0063] The welding control parameter adjustment method of the present application first determines the target current frequency and the target thrust current value of the direct current welding machine according to the short circuit duration of the positive and negative electrode short circuit of the direct current welding machine during the first period of welding work and the electrode type corresponding to the electrode connected to the direct current welding machine, then determines the key current frequency from the several adjustment current frequencies according to the difference between each adjustment current frequency corresponding to the electrode and the target current frequency, and determines the key thrust current value from the several adjustment thrust current values according to the difference between each adjustment thrust current value corresponding to the electrode and the target thrust current value, and adjusts the output frequency of the welding current of the direct current welding machine to the key current frequency and adjusts the thrust current value of the direct current welding machine to the key thrust current value, so that the output frequency of the welding current of the direct current welding machine and the thrust current value can be quickly adjusted to the vicinity of the target current frequency and the target thrust current value without affecting the welding quality of the welding work, and then fine-tunes the output frequency of the welding current of the direct current welding machine and the thrust current value according to the short circuit duration of the positive and negative electrode short circuit during the second period of welding work, so that the corresponding short circuit duration of the direct current welding machine is within the duration range, and through the two-stage automatic adjustment of the output frequency of the welding current of the direct current welding machine and the thrust current value, the short circuit duration of the direct current welding machine during the welding work is maintained within the preset duration range, without the need for manual adjustment by the staff during the welding work, improving the data adjustment accuracy while ensuring the welding quality.

[0064] Embodiments of the present application also provide a computer program product comprising program code for causing an electronic device to perform the steps of the methods described above when the program product is run on the electronic device.

[0065] Furthermore, although various steps of the methods of the present disclosure are described in a particular order in the figures, this is not required or implied, nor is it necessary to perform all of the steps shown in order to achieve the desired result. Additionally or alternatively, certain steps can be omitted, combined into a single step, performed in a different order, and / or split into multiple steps, etc.

[0066] Those skilled in the art can clearly understand that the example embodiments described herein can be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solutions according to the embodiments of the present disclosure can be embodied in the form of a software product. The software product can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash disk, a mobile hard disk, or the like) or a network, and includes a number of instructions to enable a computing device (which can be a personal computer, a server, a mobile terminal, or a network device, etc.) to perform the methods according to the embodiments of the present disclosure.

[0067] In the example embodiments of the present disclosure, an electronic device capable of implementing the above method is also provided.

[0068] Those skilled in the art can understand that each aspect of the present disclosure can be implemented as a system, a method or a program product. Therefore, each aspect of the present disclosure can be embodied in the form of an entirely hardware embodiment, an entirely software embodiment (including firmware, microcode, etc.), or an embodiment combining hardware and software aspects, which can be generally referred to as a "circuit", a "module" or a "system".

[0069] The electronic device according to this embodiment of the present disclosure. The electronic device is merely an example, and should not bring any limitation to the functions and use range of the embodiments of the present disclosure.

[0070] The electronic device is in the form of a general computing device. The components of the electronic device can include, but are not limited to, the at least one processor described above, the at least one storage described above, and a bus connecting different system components (including storage and processor).

[0071] The storage stores program codes which can be executed by the processor, so that the processor performs the steps according to various example embodiments of the present disclosure described in the "example method" part of the present specification.

[0072] The storage can include a readable medium in the form of a volatile storage, such as a random access memory (RAM) and / or a cache storage, and can further include a read-only memory (ROM).

[0073] The storage can further include programs / utilities with a set of (at least one) program modules, such as an operating system, one or more application programs, other program modules, and program data, each of which or some combination of which can include the implementation of a network environment.

[0074] The bus can be one or more of several types of bus structures including a memory bus or memory controller, a peripheral bus, a graphics bus, a processor or local bus using any of a variety of bus architectures.

[0075] The electronic device can also communicate with one or more external devices such as a keyboard or a pointing device, through an I / O interface. The I / O interface can also include a communication interface to enable the electronic device to communicate with one or more other electronic devices.

[0076] In the exemplary embodiments of the present disclosure, a computer readable storage medium having stored thereon a program product capable of implementing the above-described method of the specification is also provided. In some possible implementations, various aspects of the present disclosure can also be implemented in the form of a program product including program code for causing an end device to perform the steps described in the above-mentioned "Exemplary Method" section of the specification according to various exemplary embodiments of the present disclosure when the program product is run on the end device.

[0077] The program product can employ any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium, for example, can be, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or apparatus, or any suitable combination of the above. More specific examples (a non-exhaustive list) of the readable storage medium include an electrical connection having one or more wires, a portable disc, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0078] The computer readable signal medium can include a data signal propagated in baseband or propagated as a carrier wave, in which the readable program code is embodied. Such propagated data signal can take through various forms, including but not limited to an electromagnetic signal, an optical signal, or any suitable combination of the above. The readable signal medium can also be any readable medium other than the readable storage medium, which can send, propagate or transmit the program for use by or in connection with an instruction execution system, apparatus or device.

[0079] The program code embodied on the computer readable medium can be transmitted using any appropriate medium, including but not limited to wireless, wired, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0080] The program code, when executed, can perform a method of the present application. The program code can be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C++, or the like, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code can execute entirely on the user's computing device, partly on the user's computing device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device or entirely on the remote computing device or server. In the latter scenario, the remote computing device can be connected to the user's computing device through any type of network, including a local area network (LAN) or a wide area network (WAN), or the connection can be made to an external computing device, such as through the Internet using an Internet Service Provider. The present application can also be implemented as a computer-readable storage medium having stored thereon the program code.

[0081] Furthermore, the above-described diagrams are only schematic and are non-limiting. It is readily understood that the processes depicted in the diagrams are not necessarily performed in the order described. Further, it is readily understood that the processes depicted in the diagrams can be performed synchronously or asynchronously, and that one or more of the processes can be performed in a different order or omitted.

[0082] It should be noted that, although several modules or units of the device for action execution are mentioned in the above detailed description, such a division is not mandatory. Indeed, according to an embodiment of the present disclosure, the features and functionalities of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functionalities of one module or unit described above can be further divided into several modules or units embodied by several modules or units.

[0083] The above description is only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions easily conceived by those skilled in the art within the technical scope disclosed by the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A method of weld control parameter adjustment, characterized by, Be applied to direct current welding machine; The welding control parameter adjustment method comprises: In step S100, the target current frequency and the target thrust current value of the direct current welding machine are determined according to the short-circuit time length of the positive and negative poles of the direct current welding machine during welding work in a first time period and the electrode type corresponding to the electrode connected to the direct current welding machine. The starting time of the first time period is the starting time of the first welding work of the direct current welding machine after the electrode is connected; the ending time of the first time period is the time when the target current frequency and the target thrust current value of the direct current welding machine are determined; and the time length of the first time period is a preset time length. In step S200, the key current frequency is determined from the several adjustment current frequencies according to the difference between each adjustment current frequency corresponding to the electrode and the target current frequency. In step S300, the key thrust current value is determined from the several adjustment thrust current values according to the difference between each adjustment thrust current value corresponding to the electrode and the target thrust current value. In step S400, the output frequency of the welding current of the direct current welding machine is adjusted to the key current frequency. In step S500, the thrust current value of the direct current welding machine is adjusted to the key thrust current value. In step S600, the output frequency and the thrust current value of the welding current of the direct current welding machine are fine-adjusted according to the short-circuit time length of the positive and negative poles of the direct current welding machine during welding work in a second time period, so that the corresponding short-circuit time length of the direct current welding machine is within a preset time length range. The starting time of the second time period is the time when the thrust current value of the direct current welding machine is adjusted to the key thrust current value; and the ending time of the second time period is the current time.

2. The method of claim 1, wherein, The step S100 comprises: In step S110, the electrode type corresponding to the electrode is determined according to the electrode terminal connected to the direct current welding machine in response to the welding current value input by a user. In step S120, the target current frequency and the target thrust current value corresponding to the direct current welding machine are determined from a preset adjustment mapping table according to the electrode type corresponding to the electrode and the short-circuit time length of the positive and negative poles of the direct current welding machine during welding work in a first time period; and the adjustment mapping table stores the mapping relationship between the several short-circuit time lengths, the several electrode types, the several current frequencies and the several thrust current values.

3. The method of claim 2, wherein, The step S110 comprises: In step S111, if the electrode is connected to the negative pole of the direct current welding machine, the electrode type corresponding to the electrode is determined as a first type. If the electrode is connected to the positive pole of the direct current welding machine and the intervention of the thrust current exists during the welding work of the direct current welding machine in the first time period, the electrode type corresponding to the electrode is determined as a second type. If the electrode is connected to the positive pole of the direct current welding machine and the intervention of the thrust current does not exist during the welding work of the direct current welding machine in the first time period, the electrode type corresponding to the electrode is determined as a third type.

4. The method of claim 3, wherein, The step S120 comprises: Step S121, obtaining the short circuit time length of the positive and negative electrode short circuit of the DC welding machine in the first period of welding work to obtain a short circuit time length list A=(A1, A2,..., A g ,...,A h ); wherein g=1, 2,..., h; h is the number of positive and negative electrode short circuit of the DC welding machine in the first period of welding work; A g is the short circuit time length of the gth positive and negative electrode short circuit of the DC welding machine in the first period of welding work. Step S122, according to the short circuit duration list A, determine the corresponding target short circuit duration T0=∑ of the DC welding machine in the first period h g=1 A g / h; Step S123, obtaining a plurality of mapping lists stored in the adjustment mapping table to obtain a mapping list set B=(B1, B2,...,Bn); wherein i=1, 2,...,n; n is the number of mapping lists stored in the adjustment mapping table; B i is the i-th mapping list stored in the adjustment mapping table; n i ​​ B i =(B i1 ,B i2 ,B i3 ,B i4 );B i1 is the type identifier corresponding to the electrode type in the i-th mapping list;B i2 is the short-circuit duration range in the i-th mapping list;B i2 =(B i21 ,B i22 );B i21 is the minimum short-circuit duration corresponding to B i2 ;B i22 is the maximum short-circuit duration corresponding to B i2 ;B i3 is the current frequency in the i-th mapping list;B i4 is the push current value in the i-th mapping list; Step S124, traversing the mapping list set B, if B i1 The corresponding electrode type is the electrode type corresponding to the electrode, and B i21 <T0<B i22 B i3 is determined as the target current frequency corresponding to the direct current welding machine, and B i4 is determined as the target thrust current value corresponding to the direct current welding machine.

5. The method of claim 4, wherein, The step S200 comprises: Step S210, obtaining a plurality of adjustment current frequencies corresponding to the electrode type of the electrode to obtain an adjustment current frequency list C=(C1, C2,..., C j ,...,C k ); wherein j=1, 2,..., k; k is the number of adjustment current frequencies corresponding to the electrode type of the electrode; C j is the jth adjustment current frequency corresponding to the electrode type of the electrode. Step S220, according to the adjustment current frequency list C, determine the difference between the target current frequency and each adjustment current frequency to obtain the current frequency difference list D=(D1, D2,..., D j ,...,D k ); wherein D j is the difference between the target current frequency and the jth adjustment current frequency; D j =|C0-C j |; C0 is the target current frequency; Step S230, determining the adjustment current frequency corresponding to MIN(D) as the key current frequency; wherein MIN() is a preset minimum value determination function.

6. The method of claim 5, wherein, The step S300 includes: Step S310: Obtain several adjustable thrust current values ​​corresponding to the electrode type of the welding electrode, to obtain an adjustable thrust current value list E=(E1,E2,...,E r ,...,E t ); where r = 1, 2, ..., t; t is the number of adjusted thrust current values ​​corresponding to the electrode type; E r The r-th adjustment thrust current value corresponding to the electrode type of the welding electrode; Step S320, according to the adjustment thrust current value list E, determine the difference between the target thrust current value and each adjustment thrust current value to obtain a thrust current difference value list F=(F1, F2,..., F r ,...,F t ); wherein F r is the difference between the target thrust current value and the rth adjustment thrust current value; F r =|E0-E r |; E0 is the target thrust current value; Step S330, determining the adjustment thrust current value corresponding to MIN(F) as the key thrust current value.

7. The method of claim 6, wherein, The step S600 includes: Step S610, in the case that the positive and negative electrode short circuit occurs when the DC welding machine performs welding work in the second time period, obtaining the short circuit duration T1 of the DC welding machine when the positive and negative electrode short circuit occurs this time; Step S620, if T1 is in the preset time range, adjusting the output frequency of the welding current of the DC welding machine to the target current frequency, and adjusting the thrust current value of the DC welding machine to the target thrust current value.

8. The method of claim 7, wherein, The step S620 further includes: Step S621, if T1 is not in the preset time range, obtaining the standard current frequency and the standard thrust current value corresponding to the electrode type of the electrode; Step S622, adjusting the output frequency of the welding current of the DC welding machine to the direction of the standard current frequency, and adjusting the thrust current value of the DC welding machine to the direction of the standard thrust current value, and in the adjustment process of the output frequency of the welding current and the thrust current value of the DC welding machine, the short circuit duration of the positive and negative electrode of the DC welding machine when the short circuit occurs is obtained in real time, and the adjustment of the output frequency of the welding current and the thrust current value of the DC welding machine is stopped until the short circuit duration is in the preset time range.

9. A non-transitory computer-readable storage medium, comprising: The storage medium has at least one instruction or at least one program stored therein, and the at least one instruction or the at least one program is loaded and executed by the processor to implement the method of any one of claims 1-8.

10. An electronic device, comprising: The non-transitory computer readable storage medium includes a processor and the non-transitory computer readable storage medium of claim 9.

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