CN112828419A

CN112828419A - Welding control method, device, medium and electronic equipment for forming fish scale pattern welding seam

Info

Publication number: CN112828419A
Application number: CN202011626853.8A
Authority: CN
Inventors: 王新; 何双旺; 安小东; 张琦; 吕品
Original assignee: Panasonic Welding Systems Tangshan Co Ltd
Current assignee: Panasonic Welding Systems Tangshan Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-25

Abstract

The disclosure relates to the technical field of welding, and provides a welding control method, a device, a medium and electronic equipment for forming a fish scale pattern welding seam, wherein the welding control method comprises the following steps: the output waveform comprises a plurality of pulses of a first welding control current, wherein the total output time of the first welding control current is a first set value or the number of pulses of the plurality of pulses is a second set value; outputting a second welding control current of a constant current period, wherein the second welding control current only has an arc maintaining function and cannot cause molten drops to fall off; the step of outputting the first welding control current and the second welding control current is executed in a circulating way; and the welding wire feeding speed when the welding current is the second welding control current is lower than the welding wire feeding speed when the welding current is the first welding control current. The technical scheme of the embodiment of the disclosure can improve the forming of the fish scale pattern welding seam.

Description

Welding control method, device, medium and electronic equipment for forming fish scale pattern welding seam

Technical Field

The present disclosure relates to the field of welding technologies, and in particular, to a welding control method and apparatus for forming a fish scale pattern weld, a computer-readable storage medium, and an electronic device.

Background

In the welding process, if a fish scale pattern welding seam needs to be formed, the welding can be realized by changing the walking track and the walking speed of the welding gun. Under the welding condition of the constant-speed gun, the fish scale pattern welding can be realized by perfecting the function of the digital welding machine. For example, a fish-scale weld is formed by adjusting the wire feed speed and energy output to periodically output high and low energies.

Specifically, the high and low pulses can be periodically switched, that is, a double-pulse or low-pulse welding mode is adopted, the high and low short circuits can be periodically switched, the higher pulse and the lower short circuit can be periodically switched, the higher pulse, the lower short circuit and the time for stopping welding can be periodically switched, and the short circuit duration can be increased and the short circuit can occur periodically by adjusting the wire feeding speed and the current waveform of the welding wire in the pulse welding process, that is, the welding wire is fed quickly first to cause the short circuit to occur and then the wire feeding and the current output are stopped.

In the first four welding modes, the molten drops are uniformly transited in a pulse stage or a short-circuit stage. In the last welding mode, there is a uniform droplet transfer during the pulse phase, but only one droplet detachment phenomenon at a lower energy state, i.e. during the longer short-circuit phase. This will all affect the formation of the fish-scale weld.

Therefore, a new welding control method applied to a digital welding gun is needed to control the formation of the fish-scale weld.

It is noted that the information disclosed in the background section above is only for enhancement of understanding of the background of the present disclosure, and therefore, may include information that does not constitute prior art that is known to those of ordinary skill in the art.

Disclosure of Invention

In view of the above, the present disclosure provides a welding control method, apparatus, computer-readable storage medium, and electronic device for forming a fish-scale weld to improve the formation of the fish-scale weld.

One aspect of the present disclosure provides a welding control method of forming a fish-scale mark weld, the welding control method including: the output waveform comprises a plurality of pulses of a first welding control current, wherein the total output time of the first welding control current is a first set value or the number of pulses of the plurality of pulses is a second set value; outputting a second welding control current of a constant current period, wherein the second welding control current only has an arc maintaining function and cannot cause molten drops to fall off; the step of outputting the first welding control current and the second welding control current is executed in a circulating way; and the welding wire feeding speed when the welding current is the second welding control current is lower than the welding wire feeding speed when the welding current is the first welding control current.

In some embodiments, the first weld control current includes a pulse peak current portion and a pulse background current portion, and the outputting a second weld control current for one constant current cycle includes: and outputting the second welding control current by taking a first time point at which the output of the last pulse peak current part of the first welding control current is ended as a starting time point.

In some embodiments, the first weld control current includes a pulse peak current portion and a pulse background current portion, and the outputting a second weld control current for one constant current cycle includes: outputting the second welding control current by taking a second time point at which the output of the pulse basic value current part of the last pulse period of the first welding control current is finished as a starting time point; wherein a duration of the last pulse base current portion is equal to a set duration of the last pulse base current portion.

In some embodiments, the first weld control current includes a pulse peak current portion and a pulse background current portion, and the outputting a second weld control current for one constant current cycle includes: outputting the second welding control current by taking a second time point of the output end of the last pulse basic value current part of the first welding control current as a starting time point; wherein a duration of the last pulse base current portion is less than a set duration of the last pulse base current portion.

In some embodiments, the wire feed speed is constant while outputting the first welding control current, or the wire feed speed is variable while outputting the first welding control current.

In some embodiments, the welding control method further comprises: stopping feeding the wire or feeding the wire at a set first speed after the output of the first welding control current is finished; or after the output of the first welding control current is finished, the welding wire is firstly drawn back and then the wire feeding is stopped or the wire feeding is carried out at a set first speed; or after the first welding control current is output, the welding wire is fed quickly and then is stopped or is fed at a set first speed.

In some embodiments, the second welding control current has a current value of 5A to 100A.

Another aspect of the present disclosure provides a welding control device for forming a fish-scale weld, the welding control device comprising: the device comprises a first output unit, a second output unit and a control unit, wherein the first output unit is used for outputting a first welding control current with a waveform comprising a plurality of pulses, the total output time of the first welding control current is a first set value or the number of the pulses of the plurality of pulses is a second set value; the second output unit is used for outputting a second welding control current in a constant current period, and the second welding control current only has an arc maintaining function and cannot cause molten drops to fall off; a cycle control unit for cyclically executing the step of outputting the first welding control current to the second welding control current; and the welding wire feeding speed when the welding current is the second welding control current is lower than the welding wire feeding speed when the welding current is the first welding control current.

Another aspect of the present disclosure provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the method of forming weld control of a fish-scale weld as in the above-described aspects.

Another aspect of the present disclosure provides an electronic device, comprising: one or several processors; a storage device for storing one or several programs, which when executed by the one or several processors, cause the one or several processors to implement the welding control method for forming a fish-scale weld as described in the above technical solution.

Compared with the prior art, the beneficial effects of this disclosure include at least:

according to the technical scheme of the embodiment of the disclosure, the welding control current of the melting welding wire is adjusted to be converted between the periodic output of the pulse current and the output of the smaller constant current, so that the droplet transition can be realized in the pulse output stage, only a pilot arc is used for the droplet transition in the constant current stage, and the formation of the fish scale pattern welding seam can be well controlled.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is apparent that the drawings described below are only some embodiments of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without inventive effort.

FIG. 1 illustrates a flow chart of a weld control method of forming a fish-scale weld in one embodiment of the present disclosure;

FIG. 2A illustrates a schematic of weld control parameters for forming a fish scale weld in one embodiment of the present disclosure;

FIG. 2B illustrates a schematic of weld control parameters for forming a fish-scale weld in another embodiment of the present disclosure;

FIG. 2C illustrates a schematic view of weld control parameters for forming a fish-scale weld in yet another embodiment of the present disclosure;

FIG. 3 illustrates a flow chart of a weld control method of forming a fish-scale weld in another embodiment of the present disclosure;

FIG. 4 illustrates a block diagram of a weld control device that forms a fish-scale weld in an embodiment of the present disclosure;

FIG. 5 illustrates a block diagram of a computer system suitable for use with the electronic device used to implement embodiments of the present disclosure.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities. These functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor devices and/or microcontroller devices.

The use of "first," "second," and similar terms in the detailed description is not intended to imply any order, quantity, or importance, but rather is used to distinguish one element from another. It should be noted that features of the embodiments of the disclosure and of the different embodiments may be combined with each other without conflict.

The welding control method is applied to consumable electrode arc welding equipment. During welding, the electrode melts and the molten liquid metal enters the weld pool. By making the wire feed speed equal to the melting speed, the arc length between the wire end and the puddle can be kept constant.

The consumable electrode arc is a section of high-temperature conductive gas between a welding wire and a molten pool, also called plasma, and consists of gas atoms subjected to double excitation of electricity and heat and ionized atoms. It conducts a current between a few amperes and a few hundred amperes, which may be either direct or alternating. The voltage drop is usually in the range of 10-50V. The temperature will be about 6000 ℃. The consumable electrode arc is generally conical.

Since the specific principle of consumable electrode arc welding is known, the present disclosure will not be explained below, but will be described mainly about the welding control for forming a fish-scale-like weld.

Fig. 1 shows a flowchart of a welding control method for forming a fish-scale weld according to an embodiment of the present disclosure. The methods provided by the embodiments of the present disclosure may be performed by any electronic device having computer processing capabilities, such as a micro-control unit. As shown in fig. 1, the welding control method for forming a fish-scale weld includes:

step S102, outputting a first welding control current with a waveform comprising a plurality of pulses, wherein the total output time of the first welding control current is a first set value or the pulse number of the plurality of pulses is a second set value.

And step S104, outputting a second welding control current in a constant current period, wherein the second welding control current only has an arc maintaining function and cannot cause molten drops to fall off.

And step S106, circularly executing the step of outputting the first welding control current and the second welding control current. And the welding wire feeding speed when the welding current is the second welding control current is lower than the welding wire feeding speed when the welding current is the first welding control current.

Here, the number of pulses in the plurality of pulses may be two, three, and three or more. The pulse peak current and the pulse base current of the pulses may be the same or different in magnitude and duration.

In the technical scheme of the embodiment of the disclosure, the scale pattern forming is realized through the periodic pulse output, the small wire feeding and the constant current output, so that uniform droplet transition is realized in the pulse stage, no droplet transition is realized in the small constant current output stage, only a pilot arc is in an arcing state all the time, and the scale pattern welding seam forming can be realized well.

The technical scheme of the embodiment of the disclosure mainly utilizes smaller constant current output to replace the traditional pulse or short circuit output, the method can further reduce the welding heat input, avoid the molten drop transition, and simultaneously the existence of the pilot arc can further improve the forming of the fish scale marks, so that the fish scale marks are fuller and smoother, the fish scale marks are clearer, and further the forming of the fish scale marks of the welding seam is improved. And with the further reduction of heat input, thinner test panels can be welded by the scheme, and the application range of the fish scale pattern welding seam function is expanded.

In the disclosed embodiment, after a certain time of output pulse, the welding output current is rapidly reduced to a very small value, which is typically 5A-100A, by switching to the constant current output stage, and the specific value can be adjusted according to the composition of the welding wire, for example, 30A or 60A. Specifically, the magnitude of the current should be determined according to the specific material and wire diameter of the welding wire, and the reference is as follows: the current only has an arc maintaining function, and the melting amount of the welding wire is small, so that the molten drop transition cannot be formed; and after the output of the constant current stage is finished, switching to the pulse stage again.

Meanwhile, after the wire feeding is stopped or the wire feeding speed of the welding wire is reduced to a very small value, the current is small, so that the melting amount of the welding wire is small, molten drop transition cannot be formed, namely, falling molten drops do not exist, and after the welding wire is output for a certain time at the constant current stage, a scale of the fish scale welding seam can be formed. After that, the pulse phase is switched again to start welding of the next scale.

Specifically, in step S102, the duration of the first welding control current may be set to a first set value within a duration range of the first set value, and the pulse may be output. It is also possible to set the number of pulses output in total to the second set value during the output of the first welding current.

In the embodiment of the present disclosure, the first set value and the second set value may be determined according to the specific material and wire diameter of the welding wire and the required size of the fish-scale-pattern welding seam.

As shown in fig. 2A, the time period of outputting the first welding control current and the second welding control current immediately after outputting the first welding control current in the embodiment of the disclosure may be collectively referred to as a scale period, which means that the welding gun will form a scale of the fish-scale welding seam during the process of outputting the first welding control current and the second welding control current.

In fig. 2A, the voltage waveform and the current waveform of the digital arc welding power output of the welding gun are shown in detail, and the wire feeding condition of the welding wire is shown. As shown in fig. 2A, the first weld control current includes a pulse peak current portion and a pulse background current portion.

As shown in fig. 2A, after one scale cycle is completed, the control current output for the next scale cycle will be performed. Here, the number of pulses output in the output process of the first welding control current is set to a second set value. Wherein, the second set value is N, and N is a natural number and is greater than 2.

The magnitude and duration of the peak pulse current and the base pulse current in the first weld control current may be the same or different. For example, the N pulse peak currents may be equal in magnitude and duration, may be equal in one parameter and equal in another parameter, and may be unequal in magnitude and duration.

The N pulse base value currents can be equal in size and duration, one parameter of the size and the duration is equal, the other parameter of the size and the duration is equal, and the size and the duration are different.

For example, if the duration of the last pulse of the first welding control current is set to the set duration Q. The set duration may be the same as or different from the duration of the other pulsed background currents of the first weld control current.

In one embodiment, the magnitude and duration of the nth pulse base current of the first welding control current, which is the set duration Q, can be calculated by a set algorithm according to the magnitude and duration of the first N-1 pulse base currents of the first welding control current, in combination with the forming requirement of the fish-scale weld and the composition of the welding wire.

There may be various cases at the point of time when the second welding control current is output after outputting N pulses. Here, the nth pulse is the last pulse of the first welding control current.

Specifically, in step S104, as shown in fig. 2B, one constant current period may be output with a first time point at which the nth pulse peak current portion output ends as a start time point. The nth pulse peak current portion is also the last pulse peak current portion of the first weld control current.

As shown in fig. 2A, one constant current period may be output with a second time point at which the pulse base current section following the nth pulse peak current section ends as a start time point. The nth pulse base current portion is also the last pulse base current portion of the first weld control current.

Here, it is considered that the lengths of the pulse base current portions of the different pulses of the first welding control current may be the same or different. For example, the duration of the last pulse-base current portion may be equal to the set duration Q of the last pulse-base current portion.

The duration of the last pulse-base current portion may also be less than the set duration Q of the last pulse-base current portion. In this case, the pulse base current section after the nth pulse peak current section can be considered to be incomplete.

In the case shown in fig. 2B, the pulse base current portion following the pulse peak current portion of the nth pulse is missing.

The wire feeding speed of the welding wire in the stage of outputting the first welding control current can be constant speed or variable speed. The digital arc welding power supply in the embodiment of the disclosure can adopt constant-speed wire feeding control and variable-speed wire feeding control, such as a constant penetration function, that is, when the dry extension of the welding wire changes, the penetration of the welding wire is kept unchanged, that is, the actual output current is unchanged. The wire feeding speed of the welding wire is usually adjusted to ensure that the actual output current is unchanged, so that the consistency of weld penetration is ensured; and no matter the constant-speed and constant-speed wire feeding or the variable-speed wire feeding, the fishscale pattern forming can be realized through periodic pulse output, smaller wire feeding and smaller constant-current output.

In the disclosed embodiment, the switching to the constant current cycle phase may be made quickly after the end of the multiple pulse outputs while the first welding control current is being output. Meanwhile, when the phase of outputting a plurality of pulses is switched to the phase of outputting a constant current, the wire feeding control of the welding wire can also have a plurality of different forms.

Specifically, after the output of the first welding control current is finished, the wire feeding may be stopped or the wire feeding at the set first speed, the wire feeding may also be stopped or the wire feeding may be reduced to the set first speed after the wire is drawn back, or the wire feeding may be stopped or the wire feeding may be reduced to the set first speed after the wire is fed quickly.

Therefore, the wire feeding is directly stopped or reduced to a very slow wire feeding speed after the first welding control current is output, or the wire feeding is stopped or reduced to a very slow wire feeding speed after the first welding control current is output.

As shown in fig. 2C, in one embodiment of the present disclosure, the total output duration of the first welding control current may be the first set value T.

Specifically, when the total output period of the first welding control current is the first set value T, the number of pulses included in the T period may be calculated. The pulse peak current and the pulse base current of the pulses can be determined according to the specific material and wire diameter of the welding wire and the required size of the fish scale welding seam.

In one embodiment, if the number of pulses included in the T duration is an integer, the integer M1 is used as the number of pulses included in the first weld control current. If the number of pulses included in the period of time T is a non-integer, the integer M2 is divided by the non-integer as the number of pulses included in the first weld control current. Here, the rounding may be rounding or fractional rounding, and is not limited thereto. Here, there may be various cases at the time point when the second welding control current is output after the M1 or M2 pulses are output, which are the same as the above-mentioned embodiments and are not described herein again.

In another embodiment, the first set point T may also be strictly defined as the duration of the first welding control current. For example, if the first set time T includes 20.15 pulses, 20.15 pulses are output as the first welding control current.

As shown in fig. 3, in a welding control method of forming a fish-scale weld according to an embodiment of the present disclosure, the following steps may be included:

in step S301, N pulses of welding control current are continuously output.

Step S302, a deceleration wire feeding control signal is generated to change the normal wire feeding of the welding wire.

Step S303, a welding control current for one constant current period is output.

And step S304, generating an accelerated wire feeding control signal to recover the normal wire feeding of the welding wire.

Here, the normal wire feeding of the welding wire means a constant speed or a constant speed wire feeding during the first N-1 pulses of the output. When the Nth pulse is output, the wire feeding speed of the welding wire needs to be reduced. In step S302, the normal feeding of the welding wire is changed, and the welding wire is fed in a speed-reducing manner to match the welding control stage of the constant current period in which the current is reduced, so as to form the fish scale pattern. The proposal can further reduce welding heat input, avoid molten drop transition and further improve the forming of the fish scale pattern due to the existence of the pilot arc.

After performing step S302 and step S303, one scale in the fish-scale weld is formed. Step S301 is executed again, and outputting of N consecutive pulses is started to form a new scale of the fish-scale weld.

Here, before the step S301 is repeated, step S304 is further executed to adjust the wire feeding speed of the welding wire to a normal wire feeding state, that is, to perform accelerated wire feeding so as to match the welding control phase of the pulse cycle with a large current, thereby realizing the forming of the fish scale pattern.

Thus, the steps S301 to S304 are performed in a loop, and the fish-scale weld can be formed continuously.

The execution order of step S302 and step S303 may be interchanged, and the execution order of step S304 and step S301 may be interchanged.

According to the welding control method for forming the fish scale pattern welding seam, the welding control current of the melting welding wire is adjusted to be converted between the pulse current output periodically and the constant current output in a smaller mode, so that the droplet transition can be achieved in the pulse output stage, only a pilot arc is needed for the droplet transition in the constant current stage, and the formation of the fish scale pattern welding seam can be well controlled.

Embodiments of the apparatus of the present disclosure are described below that may be used to perform the welding control method of the present disclosure for forming a fish-scale weld as described above. The welding control device for forming the fish scale pattern welding seam provided by the embodiment of the disclosure is applied to a double-wire welding device with a front wire and a rear wire, and referring to fig. 4, the welding control device for forming the fish scale pattern welding seam provided by the embodiment of the disclosure comprises:

a first output unit 402, configured to output a first welding control current with a waveform including a plurality of pulses, where a total output duration of the first welding control current is a first set value or a number of pulses of the plurality of pulses is a second set value.

And a second output unit 404, configured to output a second welding control current in a constant current period, where the second welding control current only has an arc maintenance function and does not cause a droplet to drop.

A cycle control unit 406 for cyclically executing the steps of outputting the first welding control current to the second welding control current.

And the welding wire feeding speed when the welding current is the second welding control current is lower than the welding wire feeding speed when the welding current is the first welding control current.

In the disclosed embodiment, after a certain time of the output pulse, the welding output current is rapidly reduced to a very small value, specifically, the constant current value is usually 5A-100A, and the specific value can be adjusted according to the composition of the welding wire. Specifically, the magnitude of the current should be determined according to the specific material and wire diameter of the welding wire, and the setting reference of the magnitude of the current is as follows: the current only has an arc maintaining function, and the melting amount of the welding wire is small, so that the molten drop transition cannot be formed; and after the output of the constant current stage is finished, switching to the pulse stage again.

Meanwhile, after the wire feeding is stopped or the wire feeding speed of the welding wire is reduced to a very small value, the current is small, so that the melting amount of the welding wire is small, molten drop transition cannot be formed, namely, falling molten drops do not exist, and after the welding wire is output for a certain time at a constant current stage, a scale of the fish scale welding line can be formed. After that, the pulse phase is switched again to start welding of the next scale.

In the embodiment of the present disclosure, the number of the second set values N may be determined according to the specific material and the wire diameter of the welding wire and the required size of the fish-scale-pattern welding seam.

Each pulse cycle includes a pulse peak current portion. The second output unit 404 may further be configured to: and outputting the second welding control current by taking a first time point at which the output of the last pulse peak current part of the first welding control current is ended as a starting time point.

In the disclosed embodiment, each pulse period may include one pulse peak current portion and one pulse base current portion, based on which the second output unit 404 may be configured to: and outputting a second welding control current by taking a second time point of the end of the pulse base value current part in the Nth pulse period as a starting time point.

The second output unit 404 may be configured to: outputting a second welding control current by taking a second time point of the output end of the last pulse basic value current part of the first welding control current as an initial time point; wherein the duration of the last pulse-base current portion is equal to or less than the set duration of the last pulse-base current portion.

In the embodiment of the disclosure, the wire feeding speed of the welding wire in the stage of outputting the first welding control current may be constant or variable.

In the disclosed embodiment, each pulse cycle comprises a pulse peak current part, and in the wire feeding process of the control welding wire, the wire feeding can be stopped or stopped at a set first speed after the first welding control current output stage is finished; or after the stage of outputting the first welding control current is finished, stopping feeding the welding wire after the welding wire is drawn back or reducing the welding wire to the set first speed; or after the phase of outputting the first welding control current is finished, the wire feeding is stopped after the welding wire is fed quickly or the wire feeding is reduced to the set first speed.

Since each functional module of the welding control device based on forming the fish-scale-shaped weld seam of the exemplary embodiment of the present disclosure corresponds to the steps of the exemplary embodiment of the welding control method for forming the fish-scale-shaped weld seam described above, for details that are not disclosed in the embodiment of the device of the present disclosure, please refer to the embodiment of the welding control method for forming the fish-scale-shaped weld seam described above of the present disclosure.

In the welding control device for forming the fish scale pattern welding seam in the embodiment of the disclosure, the welding control current of the melting welding wire is adjusted to be switched between the periodic output of the pulse current and the output of the smaller constant current, so that the droplet transition can be realized in the pulse output stage, the droplet transition is not generated in the constant current stage, only the pilot arc is generated, and the formation of the fish scale pattern welding seam can be well controlled.

Referring now to FIG. 5, shown is a block diagram of a computer system 500 suitable for use in implementing the electronic devices of embodiments of the present disclosure. The computer system 500 of the electronic device shown in fig. 5 is only an example, and should not bring any limitations to the function and scope of use of the embodiments of the present disclosure.

As shown in fig. 5, the computer system 500 includes a Central Processing Unit (CPU)501 that can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM)502 or a program loaded from a storage section 508 into a Random Access Memory (RAM) 503. In the RAM 503, various programs and data necessary for system operation are also stored. The CPU 501, ROM 502, and RAM 503 are connected to each other via a bus 504. An input/output (I/O) interface 505 is also connected to bus 504.

The following components are connected to the I/O interface 505: an input portion 506 including a keyboard, a mouse, and the like; an output portion 507 including a display such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage portion 508 including a hard disk and the like; and a communication section 509 including a network interface card such as a LAN card, a modem, or the like. The communication section 509 performs communication processing via a network such as the internet. The driver 510 is also connected to the I/O interface 505 as necessary. A removable medium 511 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 510 as necessary, so that a computer program read out therefrom is mounted into the storage section 508 as necessary.

In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program embodied on a computer readable storage medium, the computer program containing program code for performing the method illustrated by the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 509, and/or installed from the removable medium 511. The above-described functions defined in the system of the present application are executed when the computer program is executed by the Central Processing Unit (CPU) 501.

It should be noted that the computer readable storage medium shown in the present disclosure may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, 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 foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer-readable signal medium may include a propagated data signal with computer-readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable storage medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable storage medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described in the embodiments of the present disclosure may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.

As another aspect, the present application also provides a computer-readable storage medium, which may be included in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer-readable storage medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the welding control method for forming a fish-scale weld as described in the above embodiments.

For example, the electronic device may implement the steps shown in fig. 1 and 3.

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

Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

The foregoing is a more detailed description of the present disclosure in connection with specific preferred embodiments, and it is not intended that the specific embodiments of the present disclosure be limited to these descriptions. For those skilled in the art to which the disclosure pertains, several simple deductions or substitutions may be made without departing from the concept of the disclosure, which should be considered as falling within the protection scope of the disclosure.

Claims

1. A weld control method of forming a fish-scale weld, the weld control method comprising:

the output waveform comprises a plurality of pulses of a first welding control current, wherein the total output time of the first welding control current is a first set value or the number of pulses of the plurality of pulses is a second set value;

outputting a second welding control current of a constant current period, wherein the second welding control current only has an arc maintaining function and cannot cause molten drops to fall off;

the step of outputting the first welding control current and the second welding control current is executed in a circulating way;

2. The weld control method according to claim 1, wherein the first weld control current includes a pulse peak current portion and a pulse background current portion, and the outputting of the second weld control current for one constant current period includes:

and outputting the second welding control current by taking a first time point at which the output of the last pulse peak current part of the first welding control current is ended as a starting time point.

3. The weld control method according to claim 1, wherein the first weld control current includes a pulse peak current portion and a pulse background current portion, and the outputting of the second weld control current for one constant current period includes:

outputting the second welding control current by taking a second time point of the output end of the last pulse basic value current part of the first welding control current as a starting time point;

wherein a duration of the last pulse base current portion is equal to a set duration of the last pulse base current portion.

4. The weld control method according to claim 1, wherein the first weld control current includes a pulse peak current portion and a pulse background current portion, and the outputting of the second weld control current for one constant current period includes:

wherein a duration of the last pulse base current portion is less than a set duration of the last pulse base current portion.

5. The welding control method according to claim 1, wherein the wire feed speed is constant at the time of outputting the first welding control current, or is variable at the time of outputting the first welding control current.

6. The welding control method of claim 1, further comprising:

stopping feeding the wire or feeding the wire at a set first speed after the output of the first welding control current is finished; or,

after the output of the first welding control current is finished, the welding wire is firstly drawn back and then the wire feeding is stopped or the wire feeding is carried out at a set first speed; or,

and after the output of the first welding control current is finished, the welding wire is fed quickly and then is stopped or is fed at a set first speed.

7. The welding control method according to claim 1, wherein a current value of the second welding control current is 5A to 100A.

8. A weld control device for forming a fish-scale weld, the weld control device comprising:

the device comprises a first output unit, a second output unit and a control unit, wherein the first output unit is used for outputting a first welding control current with a waveform comprising a plurality of pulses, the total output time of the first welding control current is a first set value or the number of the pulses of the plurality of pulses is a second set value;

the second output unit is used for outputting a second welding control current in a constant current period, and the second welding control current only has an arc maintaining function and cannot cause molten drops to fall off;

a cycle control unit for cyclically executing the step of outputting the first welding control current to the second welding control current;

9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the welding control method of forming a fish-scale weld according to any one of claims 1 to 7.

10. An electronic device, comprising:

one or more processors;

a storage device to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement the weld control method of forming a fish-scale weld of any one of claims 1 to 7.