CN114985871A - Arc striking control method and device for alternating current welding machine, welding machine and medium - Google Patents
Arc striking control method and device for alternating current welding machine, welding machine and medium Download PDFInfo
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- CN114985871A CN114985871A CN202210719898.2A CN202210719898A CN114985871A CN 114985871 A CN114985871 A CN 114985871A CN 202210719898 A CN202210719898 A CN 202210719898A CN 114985871 A CN114985871 A CN 114985871A
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- 238000003466 welding Methods 0.000 title claims abstract description 340
- 238000000034 method Methods 0.000 title claims abstract description 75
- 230000009471 action Effects 0.000 claims abstract description 137
- 230000000977 initiatory effect Effects 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 abstract description 27
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- 238000010586 diagram Methods 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 5
- 239000010937 tungsten Substances 0.000 description 5
- 229910052721 tungsten Inorganic materials 0.000 description 5
- 229910052786 argon Inorganic materials 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000010891 electric arc Methods 0.000 description 2
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- 230000000644 propagated effect Effects 0.000 description 2
- 239000010953 base metal Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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- 239000000835 fiber Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
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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
- B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
- B23K9/067—Starting the arc
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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
- B23K9/32—Accessories
Abstract
The embodiment of the invention discloses a method and a device for controlling arc striking of an alternating current welding machine, the welding machine and a medium, wherein the method for controlling the arc striking of the alternating current welding machine comprises the following steps: outputting a welding machine operation instruction to a welding machine, and acquiring a starting welding current; controlling the welding machine to execute arc striking action according to the starting welding current and arc striking parameters in the preset welding parameter table; and controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished. By adopting the control method provided by the invention, before the action of operating the welding machine is executed, the welding machine is controlled to execute the arc striking action based on the starting welding current and the arc striking parameters in the preset welding parameter table, namely, more appropriate arc striking parameters are determined according to the current working state of the welding machine and the preset welding parameter table, so that the problems of poor arc striking effect and the like in the prior art are solved, the arc striking success rate is improved, and the process is reduced.
Description
Technical Field
The invention relates to the technical field of welding machines, in particular to a method and a device for controlling arc striking of an alternating current welding machine, the welding machine and a medium.
Background
The arc striking technology of the existing argon tungsten-arc welding machine generally adopts a high-frequency or pulse high-voltage arc striking method, during arc striking, an arc space between a tungsten electrode and a workpiece is punctured through high voltage to form spark discharge, under the action of the high voltage, the arc space forms a strong electric field, the ionization action of the arc space is enhanced, the arc space is changed from the spark discharge to the arc discharge, after current is generated, high temperature can be generated during the discharge, and the arc can be maintained at low voltage.
However, in the existing arc striking technology, the tungsten needle workpiece is not heated enough, the electron emission capability is weak, and the electric arc is easy to extinguish when the current is reversed, so that the process needs to be continuously repeated according to the gun; meanwhile, the conditions that the initial position of alternating current is uncertain, the output electrode of the tungsten needle is irregular, the arc striking effect is poor and the tungsten needle is easily burnt are also existed.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for controlling arc striking of an ac welding machine, a welding machine, and a medium, which are used to solve the problems of poor arc striking effect and the like in the prior art, improve the success rate of arc striking, and reduce the process cost.
In a first aspect, an embodiment of the present invention provides a method for controlling arc ignition of an ac welder, including:
outputting a welding machine operation instruction to a welding machine, and acquiring the starting welding current;
controlling the welding machine to execute arc striking action according to the starting welding current and arc striking parameters in a preset welding parameter table;
and controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished.
In a second aspect, an embodiment of the present invention provides a control apparatus for arc striking of an ac welder, including:
the welding machine operation instruction output module is used for outputting a welding machine operation instruction to a welding machine and acquiring the starting welding current;
the arc striking action execution module is used for controlling the welding machine to execute arc striking action according to the starting welding current and arc striking parameters in a preset welding parameter table;
and the normal welding action execution module is used for controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished.
In a third aspect, an embodiment of the present invention provides a welding machine, including:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the method of controlling arc starting in an ac welder as set forth in any one of the first aspects.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the method for controlling arc ignition of an ac welder according to any one of the first aspect.
According to the method for controlling the arc striking of the alternating current welding machine, before the operation of the welding machine is executed, the welding machine is controlled to execute the arc striking action based on the starting welding current and the arc striking parameters in the preset welding parameter table, namely, more appropriate arc striking parameters are determined according to the current working state of the welding machine and the preset welding parameter table, so that the problems of poor arc striking effect and the like in the prior art are solved, the arc striking success rate is improved, and the process is reduced.
Drawings
In order to more clearly illustrate the technical solution of the exemplary embodiment of the present invention, a brief introduction will be made to the drawings required for describing the embodiment. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.
FIG. 1 is a flowchart of a method for controlling arc ignition of an AC welding machine according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an AC welding machine according to an embodiment of the present invention;
FIG. 3 is a flowchart of a method for controlling arc ignition of an AC welding machine according to a second embodiment of the present invention;
FIG. 4 is a flowchart of a method for controlling arc ignition of an AC welding machine according to a third embodiment of the present invention;
FIG. 5 is a logic diagram of arc striking for an AC welding machine according to a third embodiment of the present invention;
FIG. 6 is a schematic logic diagram of another alternate current welder arc striking according to a third embodiment of the present invention;
fig. 7 is a schematic structural diagram of an arc striking control device of an ac welding machine according to a fourth embodiment of the present invention;
fig. 8 is a schematic structural diagram of a welding machine according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be fully described by the detailed description with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts fall within the scope of the present invention.
Example one
Fig. 1 is a flowchart of a method for controlling arc ignition of an ac welder according to a first embodiment of the present invention, and fig. 2 is a schematic structural diagram of an ac welder according to a first embodiment of the present invention, and referring to fig. 1, this embodiment is applicable to an arc ignition situation of a welding machine before welding, and the method may be executed by a control device for arc ignition of an ac welder according to an embodiment of the present invention, where the system may be implemented by software and/or hardware, and the system may be integrated on a welding machine, and the method specifically includes the following steps:
and S110, outputting a welding machine operation instruction to a welding machine, and acquiring a starting welding current.
The alternating current welder is a welder which works in an alternating current welder mode. Specifically, the welding machine is an electrical appliance providing a power source with certain characteristics for welding, and the welding machine is widely applied to various industrial fields such as aerospace, ships, automobiles, containers and the like due to the advantages of flexibility, simplicity, convenience, firmness and reliability and even strength equal to that of a base metal after welding. The welding machine control unit outputs a welding machine operation instruction to the welding machine, namely the welding machine generates a starting welding current for starting the welding machine after receiving the instruction.
Illustratively, referring to fig. 2, the ac welding machine 1 includes a welding gun 11, a switch 12, a power supply 13, an electrode 14, an argon gas pipe 15, etc., and the welding machine 1 performs welding on the workpiece 4 in the molten bath 3 by the welding wire 2 under an argon gas environment, which is not particularly limited in the embodiment of the present invention.
And S120, controlling the welding machine to execute arc striking action according to the starting welding current and arc striking parameters in the preset welding parameter table.
The preset welding parameter table is a data table prestored in the welding machine control unit and comprises starting welding current and arc striking parameters corresponding to the starting welding current, and different arc striking parameters are obtained under different starting welding currents, namely different arc striking actions are realized under different working requirements of the welding machine, so that the problems of poor arc striking effect and the like in the prior art are solved, the arc striking success rate is improved, and the process is reduced. Specifically, arc initiation refers to a process of causing a welding material to ignite an arc during welding, that is, a process of igniting a welding arc is called arc initiation.
For example, the arc striking parameters in the preset welding parameter table may include a dc arc striking current magnitude, a dc arc striking time, an ac arc striking magnitude, an ac arc striking time, a frequency of an ac arc striking current, a cleaning width, and the like, which is not specifically limited in this embodiment of the present invention. Different starting welding currents correspond to different arc striking parameters one to one, namely, arc striking actions of the welding machine under different starting welding currents can be better adjusted by setting a preset welding parameter table, different operation welding actions of the welding machine are realized by corresponding to different operation welding currents under different starting welding currents, the welding machine is guaranteed to carry out the arc striking actions and the operation welding actions efficiently and accurately on the whole, and the process cost is reduced.
Optionally, the welding starting current is obtained, and the range of the welding starting current is determined; and different arc striking parameters are correspondingly obtained based on the range of the starting welding current in the preset parameter table.
Specifically, the starting welding current in the preset parameter table is a range value, and the arc striking parameters are different based on the range of the starting welding current in the preset parameter table. In other words, different starting welding currents of the welding machine can belong to different ranges of the starting welding currents in the preset parameter table, and the different ranges correspond to different arc starting parameters. For example, in the preset parameter table, if the welding start current is less than or equal to 20 amperes, the corresponding arc initiation parameters are: the direct current arc striking current is 30 amperes, the direct current arc striking time is 20 milliseconds, the alternating current arc striking current is 30 amperes, and the alternating current arc striking time is 20 milliseconds; if the starting welding current is less than 50 amperes, equal to or less than 50 amperes, and is greater than 20 amperes, the corresponding arc striking parameters are as follows: the direct current arc striking current is 50 amperes, the direct current arc striking time is 60 milliseconds, the alternating current arc striking current is 50 amperes, the alternating current arc striking time is 20 milliseconds and the like, specific arc striking parameters can be increased along with the increase of the starting welding current, and the specific starting current range and the arc striking parameters are not limited in the embodiment of the invention.
And S130, controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished.
Specifically, the arc striking action of the welding machine needs to be completed before the welding machine executes the operation welding action, namely the smooth operation of the arc striking action is ensured through the method, and further the smooth operation of the operation welding action of the welding machine is ensured. The welding machine executes the operation welding action under the operation welding current, and the requirement that the welding machine finishes the welding process is met.
The method for controlling the arc striking of the alternating current welding machine, provided by the embodiment of the invention, is characterized in that before the operation welding action is executed, the welding machine is controlled to execute the arc striking action based on the starting welding current and the arc striking parameters in the preset welding parameter table, namely, more appropriate arc striking parameters are determined according to the current working state of the welding machine and the preset welding parameter table, so that the problems of poor arc striking effect and the like in the prior art are solved, the arc striking success rate is improved, and the process is reduced.
Example two
Fig. 3 is a flowchart of a method for controlling arc striking of an ac welder according to a second embodiment of the present invention, and referring to fig. 3, the second embodiment of the present invention performs refinement on the basis of the above-mentioned embodiments, specifically refines how to control the welder to perform arc striking according to arc striking parameters in a preset welding parameter table. In this embodiment, the method specifically includes the following steps:
and S210, outputting a welding machine operation instruction to a welding machine, and acquiring a starting welding current.
And S220, acquiring direct current arc striking parameters according to the starting welding current and the arc striking parameters in the preset welding parameter table.
And S230, controlling the welding machine to execute direct current arc striking action.
The preset welding parameter table is a data table prestored in the welding machine control unit and comprises starting welding current and arc striking parameters corresponding to the starting welding current, and different arc striking parameters are obtained under different starting welding currents, namely different arc striking actions are realized under different working requirements of the welding machine, so that the problems of poor arc striking effect and the like in the prior art are solved, the arc striking success rate is improved, and the process is reduced.
Further, the arc striking parameters in the preset welding parameter table include the magnitude of the direct current arc striking current, the direct current arc striking time and the like. Different direct current arc striking parameters can be obtained based on different starting welding currents, and the welding machine is guaranteed to complete direct current arc striking actions. By adding the direct current arc striking action, the instability of the initial position of the alternating current caused by the fact that the welding machine directly enters the alternating current arc striking action can be avoided, namely the accurate initial position when the alternating current arc striking action is switched in cannot be ensured. Therefore, the electrode regularity of welding gun output of the welding machine and the execution effect of arc striking action are ensured to be good, and the damage of the welding machine is avoided.
S240, judging whether the direct current arc striking action is interrupted.
Further, in an actual situation, when the welding machine executes the dc arc striking action, there is an arc breaking situation of the welding machine, that is, the dc arc striking action is interrupted. In consideration of the time condition, the method for controlling arc striking of the alternating-current welding machine provided by the embodiment of the invention additionally judges the arc breaking condition, namely judges whether the direct-current arc striking action is interrupted. And if the direct current arc striking action is determined to be interrupted, re-executing S230 and controlling the welding machine to execute the direct current arc striking action. And if the direct current arc striking action is not interrupted, executing S250 and controlling the welding machine to execute the alternating current arc striking action.
Specifically, the method is combined with the actual process, and the control method for arc striking of the alternating current welding machine is optimized by additionally judging the action condition of direct current arc striking, so that the problems of poor arc striking effect and the like in the prior art are further solved, the arc striking success rate is improved, and the process is reduced in cost.
And S250, controlling the welding machine to execute an alternating current arc striking action.
The welding machine is used for carrying out welding operation on the welding current during the welding operation, the alternating current arc striking currents of the welding machine during the alternating current arc striking operation are all alternating currents, and the frequencies of the currents are the same. After the direct-current arc striking action is executed, the welding machine is controlled to execute the alternating-current arc striking action, the welding machine is enabled to be better transited from the arc striking action to the operation welding action, and the requirement that the welding machine completes a welding process is met.
And S260, controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished.
In summary, the direct current arc striking parameters are obtained according to the starting welding current and the arc striking parameters in the preset welding parameter table, and the direct current arc striking action is executed, so that the instability of the alternating current initial position generated when the welding machine directly enters the alternating current arc striking action can be avoided, the electrode regularity of the welding gun output of the welding machine and the execution effect of the arc striking action are ensured, and the damage of the welding machine and the like are avoided. Meanwhile, the judgment process of the direct current arc striking action is added, and the control method of the alternating current welding machine arc striking is optimized, so that the problems of poor arc striking effect and the like in the prior art are further solved, the arc striking success rate is improved, and the process is reduced.
EXAMPLE III
Fig. 4 is a flowchart of a method for controlling arc ignition of an ac welder according to a third embodiment of the present invention, fig. 5 is a schematic logic diagram of arc ignition of an ac welder according to the third embodiment of the present invention, and fig. 6 is a schematic logic diagram of arc ignition of another ac welder according to the third embodiment of the present invention, which is shown in fig. 4 to 6. In this embodiment, the method specifically includes the following steps:
and S310, outputting a welding machine operation instruction to a welding machine, and acquiring a starting welding current.
And S320, acquiring direct current arc striking parameters according to the starting welding current and the arc striking parameters in the preset welding parameter table.
And S330, controlling the welding machine to execute direct current arc striking action.
And S340, judging whether the direct current arc striking action is interrupted.
And S350, acquiring alternating current arc striking parameters according to the starting welding current and the arc striking parameters in the preset welding parameter table.
The preset welding parameter table is a data table prestored in the welding machine control unit and comprises starting welding current and arc striking parameters corresponding to the starting welding current, and different arc striking parameters are obtained under different starting welding currents, namely different arc striking actions are realized under different working requirements of the welding machine, so that the problems of poor arc striking effect and the like in the prior art are solved, the arc striking success rate is improved, and the process is reduced.
Further, the arc striking parameters in the preset welding parameter table further include the magnitude of alternating current arc striking current, alternating current arc striking time and the like. Different alternating current arc striking parameters can be obtained based on different starting welding currents, and the welding machine is guaranteed to finish alternating current arc striking actions. By adding the alternating current arc striking action, the welding machine is ensured to better transit from the arc striking action to the operation welding action after the direct current arc striking action is executed, and the requirement that the welding machine finishes the welding process is ensured.
In an exemplary AC welding machine, the current waveform developed on an oscilloscope by measuring the current at the ground end of a workpiece, i.e., the output positive pole of the AC welding machine, with a current probe is shown in FIG. 5. Specifically, the alternating current welding machine outputs current before the time T1, and after the tungsten electrode of the alternating current welding machine ignites an arc, the current output starts at the position T1, a current section from T1 to T2 is a direct current arc-striking section, a current section from T2 to T3 is an alternating current arc-striking section, and a welding current section from T3 is set. Whether the arc initiation process is interrupted or not, or during the welding operation of the ac welder, the current output will have a T1-T2-T3 course, wherein the abscissa represents time T and the ordinate represents current a in fig. 5.
And S360, judging whether the AC arc striking current of the operation welding current is greater than or equal to the AC arc striking current.
The welding machine is used for carrying out welding operation on the welding current during the welding operation, the alternating current arc striking currents of the welding machine during the alternating current arc striking operation are all alternating currents, and the frequencies of the currents are the same. And when the current of the alternating current arc striking is larger than or equal to the operation welding current, the welding machine is controlled to directly execute the operation welding action, namely, the time for executing the arc striking action can be reduced under the condition of meeting the welding condition of the welding machine, and the process cost is saved.
For example, if the operation welding current is determined to be greater than or equal to the ac arc striking current, S370 is executed to control the welding machine to perform the operation welding action at the operation welding current. As shown with reference to fig. 6. And if the operation welding current is smaller than the alternating current arc striking current, executing S380 and controlling the welding machine to execute the alternating current arc striking action under the alternating current arc striking parameters. The required operation welding current is ensured to be achieved by carrying out alternating current arc striking under the alternating current arc striking parameters. The control method of the arc striking of the alternating current welding machine is further optimized by combining with actual conditions, the success rate of the arc striking is improved, and the process reduces the cost.
And S370, controlling the welding machine to execute the operation welding action under the operation welding current.
And S380, controlling the welding machine to execute the alternating current arc striking action under the alternating current arc striking parameters.
And S390, judging whether the alternating current arc striking action is interrupted.
Further, in practical situations, when the welding machine executes the ac arc striking action, there is a situation that the welding machine breaks the arc, that is, the ac arc striking action is interrupted. In consideration of the time condition, the method for controlling the arc striking of the alternating current welding machine provided by the embodiment of the invention is additionally provided with the judgment on the arc breaking condition, namely, the judgment on whether the alternating current arc striking action is interrupted or not is carried out. And if the alternating current arc striking action is determined to be interrupted, executing S3100 and obtaining the interruption time of the direct current arc striking action. Namely, the welding machine is controlled again to execute the arc striking action again based on the arc breaking interruption time. And if the alternating current arc striking action is not interrupted, executing S370 and controlling the welding machine to execute the operation welding action under the operation welding current.
Specifically, the control method for the arc striking of the alternating current welding machine is optimized by additionally judging the alternating current arc striking action condition in combination with the actual process, so that the problems of poor arc striking effect and the like in the prior art are further solved, the arc striking success rate is improved, and the process is reduced in cost.
S3100, obtaining the interruption time of the arc striking action.
S3110, resetting the actual time of the direct current arc striking operation based on the interruption time.
Furthermore, if the arc striking operation of the welding machine is interrupted for a large number of times, the welding machine needs to be controlled repeatedly to perform the dc arc striking operation, and the welding gun of the welding machine may be burnt due to overheating. Therefore, when the dc arc striking operation is continuously performed, the actual time of the dc arc striking operation needs to be reset according to the interruption time. And the shorter the interruption time is, the shorter the actual time of the direct current arc striking action is, the welder control unit can control the actual time of the direct current arc striking action according to the ratio of the direct current arc striking execution time to the direct current arc striking time coefficient, so that the actual time of the actual direct current arc striking action is optimized, the burning loss of a welding gun under the condition of continuous arc striking is avoided, and further, the interruption time of the alternating current arc striking action is required to be acquired when the alternating current arc striking stage is interrupted. For example, the welder control unit may also predict a table for resetting the actual time for the dc arc striking based on the interruption time, which is not specifically limited by the embodiment of the present invention.
Specifically, the time interval between arc re-striking, that is, the time interval between the output of the starting current of the ac welding gun, is gradually shortened. Illustratively, in conjunction with fig. 5, the first arc ignition period T1 to T3 is slightly longer than the second arc ignition period T1 to T3, and the time decreases gradually as the number of arc ignitions increases.
In conclusion, the alternating current arc striking parameters are obtained according to the starting welding current and the arc striking parameters in the preset welding parameter table, the alternating current arc striking action is executed, and the welding machine is enabled to better transit from the arc striking action to the operation welding action after the direct current arc striking action is executed. Meanwhile, the judgment process of the sizes of the alternating current arc striking current and the operation welding current and the judgment process of the alternating current arc striking action are increased, and the control method of the alternating current welding machine arc striking is further optimized, so that the problems of poor arc striking effect and the like in the prior art are further solved, the arc striking success rate is improved, and the process is reduced.
Example four
Fig. 7 is a schematic structural diagram of a control device for arc ignition of an ac welder according to a fourth embodiment of the present invention, which may be applied to a product with an arc ignition function, where the device may be implemented by software and/or hardware.
As shown in fig. 7, the control device 10 for arc striking of the ac welder includes: the welding machine operation instruction output module 100, the arc striking action execution module 200 and the normal welding action execution module 300.
The welder operation instruction output module 100 is configured to output a welder operation instruction to a welder, and obtain a welding current for starting the welder.
And an arc striking action execution module 200, configured to control the welding machine to execute an arc striking action according to the start welding current and an arc striking parameter in the preset welding parameter table.
And the normal welding action execution module 300 is used for controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished.
The control device for arc striking of the alternating current welding machine, provided by the embodiment of the invention, is used for outputting a welding machine operation instruction to the welding machine through the welding machine operation instruction output module and acquiring the starting welding current; and then the arc striking action execution module is used for controlling the welding machine to execute arc striking action according to the starting welding current and the arc striking parameters in the preset welding parameter table. And finally, the normal welding action execution module is used for controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished. Therefore, the problems of poor arc striking effect and the like in the prior art are solved, the arc striking success rate is improved, and the process reduces the cost.
EXAMPLE five
Fig. 8 is a schematic structural diagram of a welder provided by the fifth embodiment of the present invention, and as shown in fig. 8, the welder provided by the embodiment of the present invention includes: one or more processors 41 and storage 42; the processor 41 in the device may be one or more, and fig. 8 illustrates one processor 41 as an example; storage 42 is used to store one or more programs; the one or more programs are executable by the one or more processors 41 to cause the one or more processors 41 to implement a method of controlling arc initiation of an ac welder, as in any of the embodiments of the present invention.
The processor 41, the storage means 42, the input means 43 and the output means 44 in the device may be connected by a bus or other means, as exemplified by the bus connection in fig. 8.
The storage device 42 in the apparatus is used as a computer readable storage medium for storing one or more programs, which may be software programs, computer executable programs and modules, such as program instructions/modules corresponding to the method for controlling arc ignition of an ac welder provided by the embodiment of the present invention (for example, the control device 10 for arc ignition of an ac welder shown in fig. 7 includes a welder operation instruction output module 100, an arc ignition action execution module 200 and a normal welding action execution module 300). The processor 41 executes various functional applications and data processing of the terminal device by running software programs, instructions and modules stored in the storage device 42, namely, the method for controlling the arc striking of the ac welder in the above method embodiment is realized.
The storage device 42 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the device, and the like. Further, the storage 42 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, the storage 42 may further include memory located remotely from the processor 41, which may be connected to the device over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input device 43 may be used to receive input numeric or character information and to generate key signal inputs relating to user settings and function controls of the apparatus. The output device 44 may include a display device such as a display screen.
And, when the one or more programs included in the above-described apparatus are executed by the one or more processors 41, the programs perform the following operations: outputting a welding machine operation instruction to a welding machine, and acquiring a starting welding current; controlling the welding machine to execute arc striking action according to the starting welding current and arc striking parameters in the preset welding parameter table; and controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished.
EXAMPLE six
An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, where the computer program is used, when executed by a processor, to execute a method for controlling arc striking of an ac welder, and the method includes: outputting a welding machine operation instruction to a welding machine, and acquiring a starting welding current; controlling the welding machine to execute arc striking action according to the starting welding current and arc striking parameters in the preset welding parameter table; and controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished.
Optionally, the program, when executed by the processor, is further configured to perform a method for controlling arc ignition of an ac welder according to any embodiment of the present invention.
Computer storage media for embodiments of the invention may employ any combination of one or more computer-readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. 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 (a non-exhaustive list) of the computer readable storage medium would include the following: 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 CD-ROM, an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. 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.
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 a variety of forms, including, but not limited to: an electromagnetic signal, an optical signal, or any suitable combination of the foregoing. 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.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, Radio Frequency (RF), etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, Smalltalk, C + +, or the like, as well as conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements, combinations and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for controlling arc striking of an alternating current welding machine is characterized by comprising the following steps:
outputting a welding machine operation instruction to a welding machine, and acquiring the starting welding current;
controlling the welding machine to execute arc striking action according to the starting welding current and arc striking parameters in a preset welding parameter table;
and controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished.
2. The control method of claim 1, wherein controlling the welder to perform arc starting actions according to the start welding current and arc starting parameters in a preset welding parameter table comprises:
acquiring direct current arc striking parameters according to the starting welding current and the arc striking parameters in the preset welding parameter table, wherein the direct current arc striking parameters comprise direct current arc striking current and direct current arc striking time;
and controlling the welding machine to execute direct current arc striking action.
3. The control method of claim 2, wherein after controlling the welder to perform the dc arc striking action, further comprising:
judging whether the direct current arc striking action is interrupted or not;
if yes, controlling the welding machine to execute the direct-current arc striking action again;
if not, controlling the welding machine to execute an alternating current arc striking action.
4. The control method of claim 3, wherein controlling the welder to perform an alternating current arc starting action comprises:
obtaining alternating current arc striking parameters according to the starting welding current and the arc striking parameters in the preset welding parameter table, wherein the alternating current arc striking parameters comprise alternating current arc striking current and alternating current arc striking time;
judging whether the operation welding current is larger than or equal to the alternating current arc striking current;
if so, controlling the welding machine to execute the operation welding action under the operation welding current;
if not, controlling the welding machine to execute the alternating current arc striking action under the alternating current arc striking parameters.
5. The control method of claim 4, wherein after controlling the welder to perform an AC arc starting action under the AC arc starting parameters, further comprising:
judging whether the alternating current arc striking action is interrupted or not;
if yes, controlling the welding machine to execute the direct-current arc striking action again;
and if not, controlling the welding machine to execute the operation welding action under the operation welding current.
6. The control method of claim 5, wherein controlling the welder to re-execute the DC arc initiation further comprises:
obtaining the interruption time of arc striking action;
and resetting the time of the actual direct-current arc striking action based on the interruption time, wherein the time of the actual direct-current arc striking action is equal to the direct-current arc striking time/direct-current arc striking time coefficient.
7. The control method of claim 1 wherein the start-up welding current is obtained and the welder is controlled to perform arc starting actions based on arc starting parameters in a preset parameter table, including;
based on obtaining the start welding current, determining the range of the start welding current;
and correspondingly acquiring different arc striking parameters based on the range of the starting welding current in the preset parameter table.
8. An arc ignition control device for an AC welder, comprising:
the welding machine operation instruction output module is used for outputting a welding machine operation instruction to a welding machine and acquiring the starting welding current;
the arc striking action execution module is used for controlling the welding machine to execute arc striking action according to the starting welding current and arc striking parameters in a preset welding parameter table;
and the normal welding action execution module is used for controlling the welding machine to execute the operation welding action under the operation welding current after the arc striking action is finished.
9. A welding machine, characterized in that it comprises:
one or more processors;
a storage device for storing one or more programs,
when executed by the one or more processors, cause the one or more processors to implement the method of controlling arc initiation by an ac welder as set forth in any of claims 1-7.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method for controlling arc starting of an ac welder as set forth in any one of claims 1-7.
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