CN110802308B - Control method and device for wire feeding in electric arc welding and electronic equipment - Google Patents

Control method and device for wire feeding in electric arc welding and electronic equipment Download PDF

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Publication number
CN110802308B
CN110802308B CN201911087974.7A CN201911087974A CN110802308B CN 110802308 B CN110802308 B CN 110802308B CN 201911087974 A CN201911087974 A CN 201911087974A CN 110802308 B CN110802308 B CN 110802308B
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arc welding
welding
wire feeding
arc
detected
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CN110802308A (en
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王新
安小东
孙永涛
谷孝满
张琦
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Panasonic Welding Systems Tangshan Co Ltd
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Panasonic Welding Systems Tangshan Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
    • B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/09—Arrangements or circuits for arc welding with pulsed current or voltage
    • B23K9/091—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/095—Monitoring or automatic control of welding parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/32—Accessories

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)

Abstract

The embodiment of the application provides a wire feeding control method and device for arc welding and electronic equipment. The control method of the wire feeding of the electric arc welding comprises the following steps: detecting a welding state of arc welding during pulse welding of the arc welding; and if the welding state of the arc welding is detected to be abnormal, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding. According to the technical scheme of the embodiment of the application, the wire feeding amount of the arc welding is controlled to be matched with the output energy of the arc welding under the condition that the welding state of the arc welding is detected to be abnormal, so that the phenomena of large short circuit, wire binding and arc breaking caused by insufficient energy are avoided, and the arc stability of the arc welding is improved.

Description

Control method and device for wire feeding in electric arc welding and electronic equipment
Technical Field
The application relates to the technical field of computers and communication, in particular to an electric arc welding wire feeding control method and device and electronic equipment.
Background
Whether the stability of the electric arc is one of important indexes for evaluating welding equipment in the pulse welding process or not is one of important indexes for evaluating the welding equipment, and with the development of welding technology, the requirement of welding process personnel on the quality of a welding joint is higher and higher, so that higher requirements are provided for the welding equipment. When the electric pressing is in time, the arc length is proper, and the electric arc is stable; when the voltage is lower, the welding arc is shorter, more spatters and lower in heat input amount, and at the moment, if the voltage is continuously reduced, the phenomena of larger short circuit, even wire binding and arc breaking can possibly occur, so that the stability of the arc and the formation of a welding seam are influenced.
Disclosure of Invention
The embodiment of the application provides a control method and device for wire feeding of electric arc welding and electronic equipment, so that the phenomena of large short circuit, wire binding and arc breaking caused by insufficient energy can be avoided at least to a certain extent, and the electric arc stability of the electric arc welding is improved.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
According to an aspect of an embodiment of the present application, there is provided a method of controlling an arc welding wire including: detecting a welding state of arc welding during pulse welding of the arc welding; and if the welding state of the arc welding is detected to be abnormal, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding.
In some embodiments of the present application, the anomaly comprises a short circuit of the arc welding during pulse welding; if the abnormal welding state of the arc welding is detected, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding, and the method comprises the following steps:
and if the short circuit of the arc welding in the pulse welding process is detected, reducing the wire feeding amount of the arc welding to enable the wire feeding amount to be matched with the output energy of the arc welding.
In some embodiments of the present application, reducing a wire feed amount of the arc welding if the arc welding is detected to be short-circuited during pulse welding, comprises: and when the short circuit of the arc welding is detected or the first time delay after the short circuit of the arc welding is detected, reducing the wire feeding amount of forward wire feeding of the arc welding.
In some embodiments of the present application, the reducing the wire feed amount for forward wire feed in the arc welding comprises: and withdrawing the wire feeding of the electric arc welding or stopping the forward wire feeding.
In some embodiments of the present application, the anomaly comprises arcing of the arc welding during pulse welding; if the abnormal welding state of the arc welding is detected, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding, and the method comprises the following steps: and if the arc welding is detected to be ignited in the pulse welding process, wire feeding is carried out according to a preset wire feeding amount, and the preset wire feeding amount is matched with the output energy of the arc welding.
In some embodiments of the present application, if it is detected that the arc welding is arcing during the pulse welding, forward wire feeding is performed according to a preset wire feeding amount, including: and when the arc welding is detected to be ignited or the second time delay after the arc welding is ignited, wire feeding is carried out according to the preset wire feeding amount.
In some embodiments of the present application, feeding wire according to a preset amount of wire feeding comprises: and rapidly switching the welding wire from a drawing-back state or a stopping state to a preset speed state of forward wire feeding to enable the energy required by the forward wire feeding to be consistent with the pulse energy generated by the power supply.
In some embodiments of the present application, the anomaly comprises arcing of the arc welding after a short circuit occurs during pulse welding; if the abnormal welding state of the arc welding is detected, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding, and the method comprises the following steps: and carrying out forward wire feeding according to the preset wire feeding amount in a third time delay after the short circuit occurs.
According to an aspect of an embodiment of the present application, there is provided a control apparatus for an arc welding wire including:
a detection unit for detecting a welding state of arc welding in a process of pulse welding of the arc welding;
and the control unit is used for controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding if the welding state of the arc welding is detected to be abnormal.
In some embodiments of the present application, the anomaly comprises a short circuit of the arc welding during pulse welding; the control unit includes:
a first control unit for reducing a wire feeding amount of the arc welding to match the wire feeding amount with an output energy of the arc welding if it is detected that the arc welding is short-circuited during pulse welding.
In some embodiments of the present application, the first control unit comprises:
and the second control unit is used for reducing the wire feeding amount of forward wire feeding of the arc welding when the short circuit of the arc welding is detected or the first time delay after the short circuit of the arc welding occurs.
In some embodiments of the present application, the second control unit comprises:
and withdrawing the wire feeding of the electric arc welding or stopping the forward wire feeding.
In some embodiments of the present application, the anomaly comprises arcing of the arc welding during pulse welding; the control unit includes:
and the third control unit is used for feeding wires according to a preset wire feeding amount if the arc welding is detected to generate arcing in the pulse welding process, wherein the preset wire feeding amount is matched with the output energy of the arc welding.
In some embodiments of the present application, the third control unit comprises:
and the fourth control unit is used for feeding wires according to a preset wire feeding amount when the arc welding is detected to be arcing or the second time delay after the arc welding is detected to be arcing.
In some embodiments of the present application, the fourth control unit comprises:
and rapidly switching the welding wire from a drawing-back state or a stopping state to a preset speed state of forward wire feeding to enable the energy required by the forward wire feeding to be consistent with the pulse energy generated by the power supply.
In some embodiments of the present application, the anomaly comprises arcing of the arc welding after a short circuit occurs during pulse welding; the control unit includes:
and the fifth control unit is used for carrying out forward wire feeding according to the preset wire feeding amount in a third time delay after the short circuit occurs.
According to an aspect of an embodiment of the present application, there is provided a computer readable medium having stored thereon a computer program which, when executed by a processor, implements a method of controlling an arc welding wire as described in the above embodiments.
According to an aspect of an embodiment of the present application, there is provided an electronic device including: one or more processors; a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement a method of controlling an arc welding wire as described in the embodiments above.
In the technical scheme provided by some embodiments of the application, the welding state of the arc welding is detected in the process of pulse welding of the arc welding; and if the welding state of the arc welding is detected to be abnormal, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding. According to the technical scheme of the embodiment of the application, the wire feeding amount of the arc welding is controlled to be matched with the output energy of the arc welding under the condition that the welding state of the arc welding is detected to be abnormal, so that the phenomena of large short circuit, wire binding and arc breaking caused by insufficient energy are avoided, and the arc stability of the arc welding is improved.
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 application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 schematically illustrates a flow chart of a method of controlling an arc welding wire according to an embodiment of the present application.
FIG. 2 schematically shows a schematic diagram of a wire feed control method according to an embodiment of the present application
FIG. 3 schematically shows a schematic diagram of a wire feed control method according to an embodiment of the present application
FIG. 4 schematically illustrates a block diagram of a control arrangement for an arc welding wire according to an embodiment of the present application.
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 examples 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 described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. 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 means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
The implementation details of the technical solution of the embodiment of the present application are set forth in detail below:
FIG. 1 shows a flow chart of a method of controlling an arc welding wire feed according to an embodiment of the present application. Referring to fig. 1, the method for controlling wire feeding in arc welding at least includes steps S110 to S120, which are described in detail as follows:
in step S110, a welding state of arc welding is detected during pulse welding of the arc welding.
The technical development of the electric welding machine is rapid, the electric welding machine has fully entered the digital control era nowadays, and the content taught by the embodiment is one of the digital welding machine pulse welding waveform control, and is mainly applied to the consumable electrode electric welding.
Generally, a complete welding process mainly comprises three parts, namely arc striking, main welding and arc stopping; the wire feeding speed, the welding current and the welding voltage are matched with one another to control any part of the welding wire; when the wire feeding speed, the welding current and the welding voltage are unreasonably matched, the stability of electric arcs can be affected, the welding quality and the welding seam forming can be further affected, and the good electric arc stability performance is a ring which is not necessary to evaluate the overall performance of a digital welding machine, so that the reasonable matching of the wire feeding speed, the welding current and the welding voltage is more and more important.
Whether the stability of the electric arc is one of important indexes for evaluating welding equipment in the pulse welding process or not is one of important indexes for evaluating the welding equipment, and with the development of welding technology, the requirement of welding process personnel on the quality of a welding joint is higher and higher, so that higher requirements are provided for the welding equipment. When the electric pressing is in time, the arc length is proper, and the electric arc is stable; when the voltage is lower, the welding arc is shorter, more spatters and lower in heat input amount, and at the moment, if the voltage is continuously reduced, the phenomena of larger short circuit, even wire binding and arc breaking can possibly occur, so that the stability of the arc and the formation of a welding seam are influenced. On the other hand, in some occasions with strict requirements on deformation and heat input of welding workpieces, welding with large current and small voltage is often needed, at the moment, if the voltage is too low, phenomena of wire binding and arc breaking occur, the existing control has the problem of small voltage reduction threshold, the requirements of customers on the aspect are difficult to meet, and certain limitation exists in the aspect of welding control.
In addition, regarding pulse control, constant-speed wire feeding is generally adopted, and when the short circuit is detected, the welding machine adjusts the pulse parameters of the welding machine when outputting the next pulse so as to increase the arc length as much as possible and reduce the tendency of the short circuit. In some special cases, some welding machines gradually start to adopt variable-speed wire feeding control, such as: when the dry extension of the welding wire changes, in order to keep the weld penetration constant, the wire feeding speed is usually adjusted to ensure that the actual output current is constant, so as to ensure the consistency of the weld penetration. In order to ensure stable welding arc and stable energy output, wire feeding instructions and energy output, such as current or voltage, need to be mutually corresponding no matter the wire is fed at a constant speed or at a variable speed, if the voltage is reduced more, the energy output is lower, and a welding wire cannot be completely melted, so that the phenomena of large short circuit, even wire binding and arc breaking are caused;
therefore, in the present embodiment, the purpose of maintaining the arc stability as much as possible even when the voltage is reduced is achieved, and when a short circuit occurs, the wire feeding amount at the short circuit stage can be reduced by drawing back the wire or stopping the wire feeding, so that the wire feeding and the energy output are matched as much as possible. The method has the advantages that the phenomena of large short circuit, wire binding and arc breakage caused by insufficient energy are reduced, the voltage reduction range is expanded, the problem that the voltage reduction threshold value is small in the pulse welding process is solved, and the application range of the welding machine in certain occasions needing short arc length or low heat input is expanded.
Specifically, in the present embodiment, the welding state of the arc welding is detected during the pulse welding, and may be detected by the voltage or current of the arc welding. For example, when a rapid voltage drop is detected, it is determined that the arc welding is currently in a short-circuit state; in addition, when the voltage speed is reduced and the current tends to increase, the arc welding can be judged to be in the short-circuit state at present. When the voltage is detected to rise rapidly, the arc welding is judged to be in an arc burning state currently.
In step S120, if it is detected that an abnormality occurs in the welding state of the arc welding, the wire feed amount of the arc welding is controlled to match the output energy of the arc welding.
Referring to fig. 2, fig. 2 is a schematic view of the wire feeding control of arc welding provided in the present embodiment. Wherein a welding state of the arc welding is determined by detecting a voltage and a current of the arc welding; 201 indicates that an abnormality in the welding state of arc welding is detected as a short circuit; 202 indicates that the abnormality in the welding state in which arc welding is detected is arcing. The wire feed amount is reduced at the time 201 when the short circuit is detected and for the period of time 203, and the forward wire feed is started at the time 202 when the occurrence of arcing is detected and for the period of time 204, so that the wire feed amount of the arc welding matches the output energy of the arc welding.
Wherein the anomaly comprises a short circuit occurring during pulse welding by the arc welding; in step S120, the method includes the steps of: and if the short circuit of the arc welding in the pulse welding process is detected, reducing the wire feeding amount of the arc welding to enable the wire feeding amount to be matched with the output energy of the arc welding.
The embodiment mainly solves the problem that the voltage reduction threshold is smaller in the pulse welding process in the existing control; along with the gradual reduction of welding voltage, the length of welding arc is compressed, so that a molten drop can be in contact with a molten pool to be short-circuited before the molten drop grows up, the probability of short circuit is increased, and the molten drop cannot be easily necked down, fall off and arc burnt even if short circuit occurs because the molten drop does not grow up to be large enough, so that the time of a short circuit stage is prolonged; the phenomena of wire binding, arc breaking and the like can be caused by continuously reducing the voltage and the arc length. The existing pulse control technology, whether constant-speed wire feeding or variable-speed wire feeding, generally controls the output of short-circuit current after short circuit occurs, and adjusts the output parameters of the next pulse, such as: peak current, base current or pulse period, when the voltage drops a lot, it is difficult to ensure the stability of the current pulse arc only by adjusting the short-circuit current, and the phenomena of wire binding and arc breaking can not be reduced or eliminated. Therefore, the method for drawing back the welding wire or stopping feeding the welding wire when the short circuit occurs reduces the probability of occurrence of phenomena of large short circuit, wire binding and arc breaking, further expands the voltage reduction range, ensures that the pulse welding can be stably carried out on occasions with short arc length or low voltage requirement, ensures the good stability of electric arc, and further ensures the quality of welding seams
Wherein, if the short circuit of the arc welding in the pulse welding process is detected, the process of reducing the wire feeding amount of the arc welding and matching the wire feeding amount with the output energy of the arc welding specifically comprises the following steps: and when the short circuit of the arc welding is detected or the first time delay after the short circuit of the arc welding is detected, reducing the wire feeding amount of forward wire feeding of the arc welding.
Specifically, when the short circuit of the arc welding is detected or the first time delay after the short circuit of the arc welding is detected, the wire feeding amount of forward wire feeding of the arc welding is reduced. Wherein reducing the wire feed amount of the forward wire feed of the arc welding comprises withdrawing the wire feed of the arc welding or stopping the forward wire feed.
By stopping feeding or withdrawing the welding wire when the short circuit occurs, the wire feeding amount in the short circuit stage can be reduced, and the wire feeding speed is matched with the energy output, so that the occurrence of large short circuit or wire binding and arc breakage can be effectively avoided, the voltage reduction range is expanded, and the problem of small voltage reduction threshold value in the pulse welding process is solved.
Wherein the anomaly comprises arcing of the arc weld during a pulse welding process; in step S120, the method includes the steps of: and if the arc welding is detected to be ignited in the pulse welding process, wire feeding is carried out according to a preset wire feeding amount, and the preset wire feeding amount is matched with the output energy of the arc welding.
Specifically, if arc welding is detected to be generated in the pulse welding process of the arc welding, the welding wire is quickly switched from a static state or a drawing-back state to a forward wire feeding state, and wire feeding is carried out according to a preset wire feeding amount.
Wherein, if it is detected that the arc welding is arcing in the pulse welding process, wire feeding is performed according to a preset wire feeding amount, and the step of matching the preset wire feeding amount with the output energy of the arc welding specifically comprises: and when the arc welding is detected to be ignited or the second time delay after the arc welding is ignited, wire feeding is carried out according to the preset wire feeding amount.
Wherein, carry out the process of sending a silk according to the silk volume of sending that predetermineeing, specifically include: and rapidly switching the welding wire from a drawing-back state or a stopping state to a preset speed state of forward wire feeding to enable the energy required by the forward wire feeding to be consistent with the pulse energy generated by the power supply.
Specifically, when it is detected that the arc welding is arcing during the pulse welding process, the present embodiment rapidly increases the forward wire feeding speed. So that the forward wire feeding speed of the arc welding reaches the wire feeding speed of the arc welding in normal work, namely the preset speed state of the forward wire feeding.
Wherein the anomaly comprises arcing of the arc weld after a short circuit occurs during pulse welding; in step S120, the method includes the steps of: and carrying out forward wire feeding according to the preset wire feeding amount in a third time delay after the short circuit occurs.
Specifically, a certain time T3 is delayed after the arcing occurs, and the welding wire is quickly switched from the static state or the withdrawing state to the forward feeding state.
Referring to fig. 3, fig. 3 is a schematic view of a wire feeding control method according to an embodiment of the present disclosure. Wherein a welding state of the arc welding is determined by detecting a voltage and a current of the arc welding; 301 indicates that an abnormality in the welding state in which arc welding is detected is a short circuit; 302 denotes that an abnormality in the occurrence of the welding state of arc welding is detected as arcing. When short circuit occurs in the pulse welding process, delaying for a certain time T1(305) at the moment of short circuit occurrence or after the short circuit occurrence, stopping forward wire feeding or starting to rapidly draw back the welding wire 303; the wire is then quickly transitioned from the quiescent or draw-back state to the forward wire feed state 304 either immediately after arcing or after a delay of time T2(306) after a short circuit occurs or after arcing and a delay of time T3 (307). By stopping feeding or withdrawing the welding wire when the short circuit occurs, the wire feeding amount in the short circuit stage can be reduced, and the wire feeding speed is matched with the energy output, so that the occurrence of large short circuit or wire binding and arc breakage can be effectively avoided, the voltage reduction range is expanded, and the problem of small voltage reduction threshold value in the pulse welding process is solved.
Embodiments of the apparatus of the present application are described below, which may be used to perform the control method for wire feeding for arc welding in the above-described embodiments of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, please refer to the embodiments of the wire-feeding control method for arc welding described above in the present application.
FIG. 4 shows a block diagram of a control arrangement for an arc welding wire according to an embodiment of the present application.
Referring to fig. 4, a control apparatus 400 for wire feeding for arc welding according to an embodiment of the present application includes:
a detection unit 401 for detecting a welding state of arc welding during pulse welding of the arc welding;
a control unit 402 for controlling a wire feeding amount of the arc welding to match an output energy of the arc welding if it is detected that an abnormality occurs in a welding state of the arc welding.
According to one embodiment of the present application, the anomaly comprises a short circuit of the arc welding during pulse welding; the control unit 402 includes:
a first control unit for reducing a wire feeding amount of the arc welding to match the wire feeding amount with an output energy of the arc welding if it is detected that the arc welding is short-circuited during pulse welding.
According to an embodiment of the application, the first control unit comprises:
and the second control unit is used for reducing the wire feeding amount of forward wire feeding of the arc welding when the short circuit of the arc welding is detected or the first time delay after the short circuit of the arc welding occurs.
According to an embodiment of the application, the second control unit comprises:
and withdrawing the wire feeding of the electric arc welding or stopping the forward wire feeding.
According to one embodiment of the present application, the anomaly comprises arcing of the arc welding during pulse welding; the control unit 402 includes:
and the third control unit is used for feeding wires according to a preset wire feeding amount if the arc welding is detected to generate arcing in the pulse welding process, wherein the preset wire feeding amount is matched with the output energy of the arc welding.
According to an embodiment of the present application, the third control unit includes:
and the fourth control unit is used for feeding wires according to a preset wire feeding amount when the arc welding is detected to be arcing or the second time delay after the arc welding is detected to be arcing.
According to an embodiment of the present application, the fourth control unit includes:
and rapidly switching the welding wire from a drawing-back state or a stopping state to a preset speed state of forward wire feeding to enable the energy required by the forward wire feeding to be consistent with the pulse energy generated by the power supply.
According to one embodiment of the present application, the anomaly comprises arcing of the arc welding after a short circuit occurs during pulse welding; the control unit 402 includes:
and the fifth control unit is used for carrying out forward wire feeding according to the preset wire feeding amount in a third time delay after the short circuit occurs.
It should be noted that the computer readable medium shown in the embodiments of the present application 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), a 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 application, 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 this application, however, a computer readable signal medium may include a propagated data signal with a computer program 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 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. The computer program embodied on the computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, 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 application. 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 application 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 medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The computer readable medium carries one or more programs which, when executed by an electronic device, cause the electronic device to implement the method described in the above embodiments.
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 application. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of 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 application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can 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 can 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 application.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application 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 application is limited only by the appended claims.

Claims (9)

1. A method of controlling a wire feed for arc welding, comprising:
detecting a welding state of arc welding during pulse welding of the arc welding;
if the welding state of the arc welding is detected to be abnormal, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding, wherein the abnormality comprises the short circuit of the arc welding in the pulse welding process; if the abnormal welding state of the arc welding is detected, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding, and the method comprises the following steps: if the short circuit of the arc welding in the pulse welding process is detected, reducing the wire feeding amount of the arc welding to enable the wire feeding amount to be matched with the output energy of the arc welding; when the voltage is detected to be reduced and the current has a rising trend, judging that the arc welding is in a short-circuit state at present; continuously reducing the voltage and current of the arc welding before detecting that the arc welding is short-circuited in a pulse welding process; the voltage and current of the arc welding are continuously varied during the reduction of the amount of wire feed of the arc welding.
2. The method of claim 1, wherein reducing a wire feed amount of the arc welding if the arc welding is detected as short circuiting during pulse welding comprises:
and when the short circuit of the arc welding is detected or the first time delay after the short circuit of the arc welding is detected, reducing the wire feeding amount of forward wire feeding of the arc welding.
3. The method of claim 2, wherein reducing the amount of wire feed for forward wire feed for the arc welding comprises:
and withdrawing the wire feeding of the electric arc welding or stopping the forward wire feeding.
4. The method of claim 1, wherein the anomaly comprises arcing of the arc weld during a pulse welding process; if the abnormal welding state of the arc welding is detected, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding, and the method comprises the following steps:
and if the arc welding is detected to be ignited in the pulse welding process, wire feeding is carried out according to a preset wire feeding amount, and the preset wire feeding amount is matched with the output energy of the arc welding.
5. The method of claim 4, wherein if arcing of the arc welding during pulse welding is detected, feeding wire in a forward direction in accordance with a preset wire feed amount comprises:
and when the arc welding is detected to be ignited or the second time delay after the arc welding is ignited, wire feeding is carried out according to the preset wire feeding amount.
6. The method of claim 5, wherein feeding wire at a predetermined feed rate comprises:
and rapidly switching the welding wire from a drawing-back state or a stopping state to a preset speed state of forward wire feeding to enable the energy required by the forward wire feeding to be consistent with the pulse energy generated by the power supply.
7. The method of claim 1, wherein the anomaly comprises arcing of the arc weld after a short circuit occurs during pulse welding; if the abnormal welding state of the arc welding is detected, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding, and the method comprises the following steps:
and carrying out forward wire feeding according to the preset wire feeding amount in a third time delay after the short circuit occurs.
8. A control device for an arc welding wire feed, comprising:
a detection unit for detecting a welding state of arc welding in a process of pulse welding of the arc welding;
a control unit for controlling a wire feeding amount of the arc welding to match an output energy of the arc welding if an abnormality of a welding state of the arc welding is detected, wherein the abnormality includes a short circuit of the arc welding during a pulse welding; if the abnormal welding state of the arc welding is detected, controlling the wire feeding amount of the arc welding to be matched with the output energy of the arc welding, and the method comprises the following steps: if the short circuit of the arc welding in the pulse welding process is detected, reducing the wire feeding amount of the arc welding to enable the wire feeding amount to be matched with the output energy of the arc welding; when the voltage is detected to be reduced and the current has a rising trend, judging that the arc welding is in a short-circuit state at present; continuously reducing the voltage and current of the arc welding before detecting that the arc welding is short-circuited in a pulse welding process; the voltage and current of the arc welding are continuously varied during the reduction of the amount of wire feed of the arc welding.
9. 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 method of controlling an arc welding wire of any of claims 1 to 7.
CN201911087974.7A 2019-11-08 2019-11-08 Control method and device for wire feeding in electric arc welding and electronic equipment Active CN110802308B (en)

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