CN109317785A - Welding control method - Google Patents
Welding control method Download PDFInfo
- Publication number
- CN109317785A CN109317785A CN201811511697.3A CN201811511697A CN109317785A CN 109317785 A CN109317785 A CN 109317785A CN 201811511697 A CN201811511697 A CN 201811511697A CN 109317785 A CN109317785 A CN 109317785A
- Authority
- CN
- China
- Prior art keywords
- current
- feedback
- voltage
- instruction
- electric current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B23K9/093—Arrangements or circuits for arc welding with pulsed current or voltage characterised by the circuits the frequency of the pulses produced being modulatable
Abstract
The disclosure provides a kind of welding control method, device and electronic equipment and computer-readable medium, this method comprises: the instruction current of acquisition welding machine, feedback current, fitting voltage, feedback voltage；Judge whether described instruction electric current and the feedback current and the fitting voltage and the feedback voltage are synchronous, if asynchronous, executes electric current adjustment operation so that described instruction electric current is synchronous with the feedback current；Judge whether described instruction electric current is synchronous with the feedback current, if synchronous, judges whether molten drop opportunity that falls off meets the first preset condition；If it is determined that the molten drop opportunity of falling off is unsatisfactory for the first preset condition, the length of adjustment instruction Peak of current pulse time makes molten drop opportunity that falls off meet the first preset condition.Welding defect caused by not being inconsistent by feedback current and instruction current can be reduced using the welding control method that the disclosure provides, so that welding can stablize welding.
Description
Technical field
This disclosure relates to welding machine electric welding field more particularly to a kind of welding control method and device, electronic equipment and calculating
Machine readable medium.
Background technique
With the continuous improvement of welding technique, pulse welding is high with welding efficiency, spatter is low, weld seam is beautiful, hot
Input it is low, can be controlled in wider range heat input, by multiple pulse parameters convert with optimize can match it is best
Arc welding effect the advantages that.In modernization welding production, pulse welding mode is mostly used to be welded greatly.Although welding
Power supply production technology constantly improves, but the source of welding current still can be led to the problem of in user production scene it is many.For example,
Cause to generate excessive inductance inside the source of welding current due to the cable length of welding scene or the variation of placement position, so that welding
The feedback current of power supply can not change according to the slope of instruction current, certainly will will lead to the arteries and veins of the electric current of reality output in this way
Rushing waveform can not export according to instruction current, to influence the stability of welding arc.For example, excessive when being generated in welder circuit
Inductance make feedback current be unable to reach the peak point current of instruction current, the energy of such source of welding current output can be lower, lead
Cause the source of welding current occur short circuit erroneous judgement or arcing judge by accident so that electric arc can not re-ignition and jackscrew occurs, and then influence welding one
Cause property and stability.
It should be noted that information is only used for reinforcing the reason to background of the invention disclosed in above-mentioned background technology part
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
In view of this, the disclosure provides a kind of welding control method and device, electronic equipment and computer-readable medium, energy
Welding defect caused by enough reductions are not inconsistent by feedback current and instruction current, so that welding can stablize welding.
Other characteristics and advantages of the disclosure will be apparent from by the following detailed description, or partially by the disclosure
Practice and acquistion.
On one side according to the embodiment of the present disclosure, a kind of welding control method is proposed, this method comprises: the finger of acquisition welding machine
Enable electric current, feedback current, fitting voltage, feedback voltage；Judge described instruction electric current and the feedback current and the fitting
Whether voltage synchronous with the feedback voltage, if asynchronous, execute electric current adjustment operate so that described instruction electric current with it is described
Feedback current is synchronous；Judge whether described instruction electric current is synchronous with the feedback current, if synchronous, when judging that molten drop falls off
Whether machine meets the first preset condition；If it is determined that the molten drop opportunity of falling off is unsatisfactory for the first preset condition, adjustment instruction electric current arteries and veins
Rush time to peak length make the molten drop fall off opportunity meet the first preset condition.
In a kind of exemplary embodiment of the disclosure, the execution electric current adjustment operation includes: on adjustment welding circuit
The coefficient of proportional-plus-integral controller.
In a kind of exemplary embodiment of the disclosure, the execution electric current adjustment operation includes: adjustment described instruction electricity
Stream.
In a kind of exemplary embodiment of the disclosure, the execution electric current adjustment operation includes: on adjustment welding circuit
The coefficient of proportional-plus-integral controller；If it is determined that the coefficient of proportional-plus-integral controller can not make on the adjustment welding circuit
The feedback current and described instruction current synchronization then restore initial proportion-integral controller coefficient, and adjust described instruction
Electric current.
It is described to obtain described instruction electric current and the feedback current difference in a kind of exemplary embodiment of the disclosure
Absolute value and the fitting voltage and the absolute value of the feedback voltage difference include:
It is obtained in described instruction electric current, the rising edge of the waveform of the fitting voltage and failing edge according to certain time interval
The absolute value of the absolute difference and the fitting voltage and feedback voltage difference of instruction current and feedback current.
In a kind of exemplary embodiment of the disclosure, the judgement described instruction electric current and the feedback current and institute
State fitting voltage and the feedback voltage whether synchronize include: instruction current, feedback current according to the welding machine of the acquisition, it is quasi-
Close voltage, feedback voltage obtain described instruction electric current and the feedback current difference absolute value and the fitting voltage with it is described
The absolute value of feedback voltage difference；And judge the absolute value and fitting electricity of described instruction electric current and the feedback current difference
Whether the absolute value of pressure and the feedback voltage difference meets the second preset condition.
It is described to obtain described instruction electric current and the feedback current difference in a kind of exemplary embodiment of the disclosure
Absolute value and the fitting voltage and the absolute value of the feedback voltage difference include: in described instruction electric current, fitting electricity
The rising edge and failing edge of the waveform of pressure obtain described instruction electric current and the feedback current difference according to certain time interval
The absolute value of absolute value and the fitting voltage and the feedback voltage difference.
In a kind of exemplary embodiment of the disclosure, instruction current, feedback current, the fitting electricity of the acquisition welding machine
Pressure, feedback voltage include acquisition described instruction electric current, the feedback current, the fitting voltage, the feedback voltage waveform
Rising edge slope and failing edge slope, duration of peak value
According to the second aspect of an embodiment of the present disclosure, a kind of electric arc controller is proposed, which includes:
Welding machine parameter collection module is configured to the instruction current, feedback current, fitting voltage, feedback voltage of acquisition welding machine；
Current adjusting module is configured to judge described instruction electric current and the feedback current and the fitting voltage and institute
It states whether feedback voltage synchronizes, if asynchronous, execute electric current adjustment and operate so that described instruction electric current and the feedback current
It is synchronous；
The molten drop opportunity judgment module that falls off is configured to judge whether described instruction electric current is synchronous with the feedback current, if
It is synchronous, then judge whether molten drop opportunity that falls off meets the first preset condition；
Peak of current pulse time regulating module is configured to if it is determined that the molten drop opportunity of falling off is unsatisfactory for the first default item
Part, the length of adjustment instruction Peak of current pulse time make the molten drop fall off opportunity meet the first preset condition.
According to the third aspect of an embodiment of the present disclosure, a kind of electronic equipment is proposed, which is characterized in that the electronic equipment packet
It includes: one or more processors；Storage device, for storing one or more programs, when one or more of programs are by institute
One or more processors execution is stated, so that one or more of processors realize welding controlling party described in any of the above embodiments
Method.
According to a fourth aspect of embodiments of the present disclosure, it proposes a kind of computer-readable medium, is stored thereon with computer journey
Sequence, which is characterized in that welding control method as described in any one of the above embodiments is realized when described program is executed by processor.
The welding control method, device and the electronic equipment that are there is provided according to disclosure some embodiments and computer-readable Jie
Matter, by welding current and welding machine molten drop fall off opportunity etc. adjustment to improve the stability of welding machine pulse welding, improve
Working efficiency.
It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited
It is open.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.Drawings discussed below is only some embodiments of the present disclosure,
For those of ordinary skill in the art, without creative efforts, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is shown can be using the welding control method of the embodiment of the present invention or the exemplary system of welding controller
The schematic diagram of framework.
Fig. 2 is a kind of flow chart of welding control method shown according to an exemplary embodiment.
Fig. 3 is a kind of flow chart of the welding control method shown according to another exemplary embodiment.
Fig. 4 is a kind of flow chart of the welding control method shown according to another exemplary embodiment.
Fig. 5 is a kind of flow chart of the welding control method shown according to another exemplary embodiment.
Fig. 6 is a kind of instruction current of welding machine shown according to an exemplary embodiment, feedback current, is fitted voltage, is anti-
Feedthrough voltage contrast schematic diagram.
Fig. 7 be the instruction current of the welding machine shown according to another exemplary embodiment a kind of, feedback current, fitting voltage,
Feedback voltage contrast schematic diagram.
Fig. 8 be a kind of acquisition instruction electric current shown according to an exemplary embodiment and feedback current and fitting voltage with
The schematic diagram of the absolute value of feedback voltage difference.
Fig. 9 is a kind of adjustment instruction electric current shown according to an exemplary embodiment schematic diagram close to feedback current.
Figure 10 is a kind of adjustment instruction electric current shown according to an exemplary embodiment to adjust molten drop and fall off the showing of position
It is intended to.
Figure 11 is a kind of block diagram of welding controller shown according to an exemplary embodiment.
Figure 12 is a kind of block diagram of the welding controller shown according to another exemplary embodiment.
Figure 13 is a kind of block diagram of the welding controller shown according to another exemplary embodiment.
Figure 14 is a kind of knot of computer system applied to welding controller shown according to an exemplary embodiment
Structure schematic diagram.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be real in a variety of forms
It applies, and is not understood as limited to embodiment set forth herein；On the contrary, thesing embodiments are provided so that the present invention will be comprehensively and complete
It is whole, and the design of example embodiment is comprehensively communicated to those skilled in the art.Identical appended drawing reference indicates in figure
Same or similar part, thus repetition thereof will be omitted.
Described feature, structure or characteristic can be incorporated in one or more embodiments in any suitable manner
In.In the following description, many details are provided to provide and fully understand to embodiments of the present invention.However,
It will be appreciated by persons skilled in the art that technical solution of the present invention can be practiced and omit it is one or more in specific detail,
Or it can be using other methods, constituent element, device, step etc..In other cases, it is not shown in detail or describes known side
Method, device, realization or operation are to avoid fuzzy each aspect of the present invention.
Attached drawing is only schematic illustrations of the invention, and identical appended drawing reference indicates same or similar part in figure, because
And repetition thereof will be omitted.Some block diagrams shown in the drawings not necessarily must with it is physically or logically independent
Entity is corresponding.These functional entitys can be realized using software form, or in one or more hardware modules or integrated electricity
These functional entitys are realized in road, or these function are realized in heterogeneous networks and/or processor device and/or microcontroller device
It can entity.
Flow chart shown in the drawings is merely illustrative, it is not necessary to including all content and step, nor
It must be executed by described sequence.For example, the step of having can also decompose, and the step of having can merge or part merges,
Therefore the sequence actually executed is possible to change according to the actual situation.
In this specification, term "one", " one ", "the", " described " and "at least one" indicating there are one or
Multiple element/component parts/etc.；Term "comprising", " comprising " and " having " are to indicate the open meaning being included
And refer to the element in addition to listing/component part/also may be present other than waiting other element/component part/etc.；Term " the
One ", " second " and " third " etc. only use as label, are not the quantity limitations to its object.
Example embodiment of the present invention is described in detail with reference to the accompanying drawing.
Fig. 1 is shown can be using the welding control method of the embodiment of the present invention or the exemplary system of welding controller
The schematic diagram of framework.
As shown in Figure 1, system architecture 100 may include terminal device 101,102,103, network 104 and server 105.
Network 104 between terminal device 101,102,103 and server 105 to provide the medium of communication link.Network 104 can be with
Including various connection types, such as wired, wireless communication link or fiber optic cables etc..
User can be used terminal device 101,102,103 and be interacted by network 104 with server 105, to receive or send out
Send message etc..Wherein, terminal device 101,102,103 can be the various electronics with display screen and supported web page browsing and set
It is standby, including but not limited to smart phone, tablet computer, pocket computer on knee and desktop computer etc..
Server 105 can be to provide the server of various services, such as utilize terminal device 101,102,103 to user
The device operated provides the back-stage management server supported.Back-stage management server can be to the number such as request received
According to carrying out the processing such as analyzing, and processing result is fed back into terminal device.
Server 105 can be such as: acquiring the instruction current, feedback current, fitting voltage, feedback voltage of welding machine；Server
105 can be such as: judging whether described instruction electric current and the feedback current and the fitting voltage and the feedback voltage are same
Step executes electric current adjustment operation so that described instruction electric current is synchronous with the feedback current if asynchronous；Server 105 can
Such as: judge whether described instruction electric current is synchronous with the feedback current, if synchronous, judges whether completely molten drop falls off opportunity
The first preset condition of foot；Server 105 can be such as: if it is determined that the molten drop opportunity of falling off is unsatisfactory for the first preset condition, adjustment refers to
Enable the length of Peak of current pulse time make the molten drop fall off opportunity meet the first preset condition.
It should be understood that the number of terminal device, network and server in Fig. 1 is only schematical, server 105 can
It to be the server of an entity, can also be formed for multiple servers, according to needs are realized, can have any number of end
End equipment, network and server.It should be noted that welding control method provided by the embodiment of the present application is generally by server
105 execute, and correspondingly, welding controller is generally positioned in server 105.
In order to make welding that can stablize welding, welding defect caused by inductance is crossed in reduction welding circuit can be used
Following scheme adjusts electric current in circuit.
Fig. 2 is a kind of flow chart of welding control method shown according to an exemplary embodiment.
Referring to Fig. 2, welding control method be may comprise steps of.
Step S201 acquires the instruction current, feedback current, fitting voltage, feedback voltage of welding machine.
In some embodiments, welding machine is that the high-temperature electric arc generated using positive and negative polarities in instantaneous short circuit is welded to melt
Solder and materials to be welded on item, make to be combined by contactant, and the welding machine in the present embodiment, which can be for example, can carry out pulse welding
Digitalized electric welder.
In some embodiments, instruction current refers to the specified current flow being set in advance in welding machine, including setting electric current
Waveform, rising edge slope, failing edge slope etc..If welding machine real work electric current is consistent with the variation of instruction current, the welding machine
It can be carried out stable welding, if the variation of welding machine real work electric current and instruction current is inconsistent, the welding of the welding machine
Electric arc is likely to occur jackscrew etc. and causes welding that can not be normally carried out.
In the present embodiment, instruction current can be set to a kind of waveform similar to square wave, which is pulsation
The electric current of variation, the lowest point of electric current are background current, and highest point is peak point current, the rising edge of the waveform and failing edge it is oblique
Rate is adjustable.
Feedback current refers to, the operating current of actual measurement in the welding machine course of work.
Fitting voltage refers to that in actual operation system is fitted according to instruction current and the average voltage level being set in advance
The voltage of a suitable welding out, the fitting voltage waveform are roughly the same with instruction current waveform, it may have a kind of
Similar to the waveform of square wave.
Feedback voltage refers to, during the work time the operating voltage of the welding machine of actual measurement.
Step S202 judges described instruction electric current and the feedback current and the fitting voltage and the feedback voltage
Whether synchronize, if asynchronous, it is synchronous with the feedback current that execution electric current adjustment is operable so that described instruction electric current.
Whether decision instruction electric current and feedback current and fitting voltage and feedback voltage are synchronous, it is necessary first to according to acquisition
Welding machine instruction current, feedback current, fitting voltage, feedback voltage acquisition instruction electric current and feedback current difference absolute value
And the absolute value of fitting voltage and feedback voltage difference, the then absolute value of decision instruction electric current and feedback current difference and fitting
Whether voltage and the absolute value of feedback voltage difference meet the second preset condition.When decision instruction electric current and feedback current difference
When absolute value and fitting voltage and the absolute value of feedback voltage difference are unsatisfactory for the second preset condition, then decision instruction electric current and anti-
Supply current and fitting voltage are synchronous with feedback voltage.
Wherein, the second preset condition refers to the absolute value and fitting voltage and anti-of instruction current and feedback current difference
The absolute value of feed pressure difference is both greater than respective threshold value.
If it is determined that feedback current and instruction current and feedback voltage are asynchronous with fitting voltage, then electric current adjustment is executed
Operation is so that instruction current is synchronous with feedback current.
Step S203 judges whether described instruction electric current is synchronous with the feedback current, if synchronous, judges that molten drop is de-
Fall whether opportunity meets the first preset condition.
Wherein molten drop refers in welder, in the liquid metal to molten bath transition that welding wire end is formed.
When being exactly that molten drop falls off when molten drop falls off at the specified region of electric current (instruction current is synchronous with feedback current)
Machine meets the first preset condition.The position in the specified region determines that the disclosure does not limit this by the long-term work experience of worker
System.
When if it is determined that molten drop falls off, opportunity meets the first preset condition, then control directly exports.
Step S204, if it is determined that the molten drop opportunity of falling off is unsatisfactory for the first preset condition, adjustment instruction Peak of current pulse
The length of time make the molten drop fall off opportunity meet the first preset condition, then control directly output.
It can be reduced according to the welding control method that the disclosure provides caused by not being inconsistent by feedback current and instruction current
Welding defect, so that welding can stablize progress.Fig. 3 is a kind of welding control method shown according to another exemplary embodiment
Flow chart.
Referring to Fig. 3, welding control method be may comprise steps of.
Step S301 acquires the instruction current, feedback current, fitting voltage, feedback voltage of welding machine.
Instruction current, feedback current, fitting voltage, the feedback voltage for acquiring welding machine include acquisition instructions electric current, feedback electricity
Stream, the rising edge slope and failing edge slope and duration of peak value etc. for being fitted voltage, feedback voltage waveform.
Whether step S302, decision instruction electric current and feedback current and fitting voltage and feedback voltage are synchronous.
Whether decision instruction electric current and feedback current and fitting voltage and feedback voltage are synchronous, it is necessary first to according to acquisition
Welding machine instruction current, feedback current, fitting voltage, feedback voltage obtain described instruction electric current and the feedback current difference
Absolute value and it is described fitting voltage and the feedback voltage difference absolute value；Then judge described instruction electric current and described anti-
Whether the absolute value of supply current difference and the fitting voltage and the absolute value of the feedback voltage difference meet the second default item
Part.
Wherein, the second preset condition refers to the absolute value and fitting voltage and anti-of instruction current and feedback current difference
The absolute value of feed pressure difference is both greater than specific threshold value.
When the absolute value of the absolute value and fitting voltage and feedback voltage difference of decision instruction electric current and feedback current difference
When meeting the second preset condition, then decision instruction electric current and feedback current and fitting voltage are asynchronous with feedback voltage.
In some exemplary embodiments, in order to more accurately judge feedback current and instruction current and feedback voltage with
Fitting voltage whether synchronize, usually instruction current and be fitted voltage waveform rising edge and failing edge according between the regular hour
Every the absolute value for take the current differential and voltage difference that a little calculate the point.When decision instruction electric current and feedback current difference
Absolute value and fitting voltage and the absolute value of feedback voltage difference when meeting the second preset condition, then decision instruction electric current and anti-
Supply current and fitting voltage are asynchronous with feedback voltage.
If feedback current and instruction current and feedback voltage and fitting voltage synchronous, do not need to carry out any behaviour
Make, directly execution step S309, normal control output.
If feedback current and instruction current and feedback voltage are asynchronous with fitting voltage, S303 can be entered step.
S303 adjusts the coefficient of proportional-plus-integral controller on welding circuit.
In some embodiments, the source of welding current carries proportional-plus-integral controller, can be by adjusting pi controller
Coefficient adjustment source of welding current circuit feedback current so that feedback current is synchronous with instruction current.
Step S304, judges whether the coefficient of proportional-plus-integral controller meets third preset condition.
If the proportionality coefficient and integral coefficient of the pi controller after adjusting float up and down and are all respectively less than one
Fixed preset range, then it is assumed that current proportional, integral control coefrficient meets third preset condition.For example, if adjust after ratio
The proportionality coefficient of example integral controller floats up and down without departing from 20 the percent of initial proportion coefficient, and above and below integral coefficient
It floats without departing from 20 the percent of initial integration coefficient, then it is assumed that the coefficient of proportional-plus-integral controller meets third and presets item
Part.
When the coefficient that judgement adjusts proportional-plus-integral controller exceeds certain preset range, step S305 is executed, is terminated
Control.
Feedback current and instruction electricity cannot still be made after the coefficient for adjusting pi controller exceeds preset range
Stream synchronizes, then determines instruction current can not be made synchronous with feedback current by adjusting ratio-integral control coefficient, can recognize
For the stability for adjusting the welding that the coefficient of proportional, integral device cannot improve.
When judgement adjusts the coefficient of proportional-plus-integral controller without departing from certain preset range, enforcement division step is needed
S306.
Step S306 judges whether the feedback current is synchronous with described instruction electric current.
Not yet make feedback current and instruction electricity on welding circuit after the coefficient of proportional-plus-integral controller if it is determined that adjusting
Stream synchronizes, and thens follow the steps S303, circuits sequentially, until jumping out circulation.
If adjust makes feedback current synchronous with instruction current on welding circuit after the coefficient of proportional-plus-integral controller,
Then enter step S307.
Step S307, judges whether molten drop opportunity that falls off meets the first preset condition.
When being exactly that molten drop falls off when molten drop falls off at the specified region of electric current (instruction current is synchronous with feedback current)
Machine meets the first preset condition.For example, the specified region also refers at electric current failing edge 60% at electric current base value 30%
Range.For example, as shown in Figure 10, it is believed that when molten drop meets the first default item when the 1. region of instruction current falls off
Part, when molten drop instruction current 2., 3. region falls off when be unsatisfactory for the first preset condition.
When if it is determined that molten drop falls off, opportunity meets the first preset condition, i.e., molten drop falls off in the 1. region of instruction current,
Step S309 is directly executed, it is normal to export.
If it is determined that then needing to execute step S308 when the molten drop opportunity of falling off is unsatisfactory for the first preset condition.
Step S308, the length of adjustment instruction Peak of current pulse time.
When judging that molten drop does not fall off in specified region, need to adjust current peak time span, so that molten drop is de-
Falling the time is in specified region.
At this point, feedback current is synchronous with instruction current, adjustment instruction Peak of current pulse time span will not influence finger
Enable the synchronism of electric current and feedback current.As shown in Figure 10, T-IP represents the length of the time to peak of electric current, when judging molten drop
When 2. region falls off, need to shorten instruction current peak value of pulse time span so that molten drop falls off the time from instruction current 2.
Shift to the 1. region of instruction current in region；When judging molten drop when 3. region falls off, when needing to lengthen instruction current peak value of pulse
Between length so that molten drop falls off, the time shifts to the 1. region of instruction current from the 3. region of instruction current；When judging that molten drop instructing
When the 1. region of electric current falls off, then can determine that molten drop fall off opportunity meet the first preset condition, directly execute step S309, normally
Output.
Proportional integration-controller coefficient is adjusted, step is simple, and effect is obvious, can fast and easily improve feedback electricity
Flow the stability that welder is improved with the synchronism of instruction current.
Fig. 4 is a kind of flow chart of the welding control method shown according to another exemplary embodiment.
Referring to Fig. 4, welding control method be may comprise steps of.
Step S401 acquires the instruction current, feedback current, fitting voltage, feedback voltage of welding machine.
Instruction current, feedback current, fitting voltage, the feedback voltage for acquiring welding machine include acquisition instructions electric current, feedback electricity
Stream, the rising edge slope and failing edge slope and duration of peak value etc. for being fitted voltage, feedback voltage waveform.
Whether step S402, decision instruction electric current and feedback current and fitting voltage and feedback voltage are synchronous.
Whether decision instruction electric current and feedback current and fitting voltage and feedback voltage are synchronous, it is necessary first to according to described
Instruction current, the feedback current of the welding machine of acquisition, fitting voltage, feedback voltage obtain described instruction electric current and the feedback current
The absolute value of the absolute value of difference and the fitting voltage and the feedback voltage difference；Then judge described instruction electric current and institute
It is pre- whether the absolute value and the fitting voltage and the absolute value of the feedback voltage difference for stating feedback current difference meet second
If condition.
Wherein, the second preset condition refers to the absolute value and fitting voltage of instruction current and the feedback current difference
Specific threshold value is both greater than with the absolute value of feedback voltage difference.
When the absolute value of the absolute value and fitting voltage and feedback voltage difference of decision instruction electric current and feedback current difference
When meeting the second preset condition, then decision instruction electric current and feedback current and fitting voltage are asynchronous with feedback voltage.
If feedback current and instruction current and feedback voltage and fitting voltage synchronous, do not need to carry out any behaviour
Make, directly execution step S407, normal control output.
If feedback current and instruction current and feedback voltage are asynchronous with fitting voltage, S403 can be entered step.
Step S403 adjusts described instruction electric current.
The adjustment of instruction current can adjust the slope of rising edge and failing edge according to certain changing rule.For example, can
With with the rising edge slope and failing edge slope of the changing rule adjustment instruction electric current of 20 amperes/millisecond every time, so that feedback electricity
It flows synchronous with instruction current.
The adjustment of instruction current is also possible to the direct adjustment instruction electricity of slope according to feedback current rising edge and failing edge
The rising edge and failing edge of stream.For example, after the rising edge change rate and failing edge change rate of acquisition instruction electric current and feedback current
It was found that there are biggish differences for the slope of two kinds of electric currents, can directly be adjusted using the slope of feedback current rising edge and failing edge
The rising edge slope and failing edge slope of instruction current are so that instruction current is synchronous with feedback current.
Step S404 judges whether described instruction electric current is synchronous with the feedback current.
After instruction current adjusts, also to judge whether feedback current is synchronous with instruction current, when decision instruction electric current
Make feedback current synchronous with instruction current after adjustment, then enters step S405.
Step S405, judges whether molten drop opportunity that falls off meets the first preset condition.
When being exactly that molten drop falls off when molten drop falls off at the specified region of electric current (instruction current is synchronous with feedback current)
Machine meets the first preset condition.For example, the specified region also refers at electric current failing edge 60% at electric current base value 30%
Range.
When opportunity meets the first preset condition if it is determined that molten drop falls off, then step S407 is directly executed, it is normal to export.
If it is determined that then needing to execute step S406 when the molten drop opportunity of falling off is unsatisfactory for the first preset condition.
Step S406, the length of adjustment instruction Peak of current pulse time.
When judging that molten drop does not fall off in specified region, need to adjust current peak time span, so that molten drop is de-
Falling the time is in specified region.
At this point, feedback current is synchronous with instruction current, adjustment instruction Peak of current pulse time span will not influence finger
Enable the synchronism of electric current and feedback current.As shown in Figure 10, T-IP represents the length of the time to peak of electric current, when judging molten drop
When 2. region falls off, need to shorten instruction current peak value of pulse time span so that molten drop falls off the time from instruction current 2.
Shift to the 1. region of instruction current in region；When judging molten drop when 3. region falls off, when needing to lengthen instruction current peak value of pulse
Between length so that molten drop falls off, the time shifts to the 1. region of instruction current from the 3. region of instruction current；Sentence when by step S405
Disconnected molten drop then can determine that molten drop opportunity that falls off meets the first preset condition, directly execution when the 1. region of instruction current falls off
Step S407 is normal to export.
Regulating command electric current can pass through regulating command rise-time of current so that instruction current is synchronous with feedback current
With the slope of failing edge so that instruction current is synchronous with feedback current, after judging that feedback current is synchronous with instruction current, also
Need to adjust falling off opportunity for molten drop, it is ensured that the welding of welding machine is stablized.
Fig. 5 is a kind of flow chart of the welding control method shown according to another exemplary embodiment.
Referring to Fig. 5, welding control method be may comprise steps of.
Step S501 acquires the instruction current, feedback current, fitting voltage, feedback voltage of welding machine.
In actual operation, variation feelings of the feedback current relative to instruction current and feedback voltage relative to fitting voltage
Condition includes at least following two situation.
The first situation is as shown in fig. 6, Fig. 6 is a kind of instruction current shown according to an exemplary embodiment, feedback electricity
The contrast schematic diagram of stream, fitting voltage, feedback voltage.Fitting voltage 601 and feedback voltage 602 are illustrated in Fig. 6 top half
Variation tendency, lower half portion illustrates the variation tendency of instruction current 603 and feedback current 604.In Fig. 6, feedback current
When greater than instruction current, feedback voltage is less than fitting voltage.In actual operation, when cable and the placement of control line coil, make
When obtaining feedback current greater than instruction current, feedback voltage is less than fitting voltage.
Second situation is as shown in fig. 7, Fig. 7 is a kind of instruction current shown according to another exemplary embodiment, feedback
Electric current, fitting voltage, feedback voltage contrast schematic diagram.Fig. 7 top half illustrates fitting voltage 603 and feedback voltage 602
Variation tendency, lower half portion illustrate the variation tendency of instruction current 601 and feedback current 604.In Fig. 7, work as feedback current
When greater than instruction current, feedback voltage is also greater than fitting voltage.In actual operation, when cable and control line do not have coil to put
It sets, when so that feedback current being greater than instruction current, feedback voltage is also greater than fitting voltage.
Instruction current, feedback current, fitting voltage, the feedback voltage for acquiring welding machine include acquisition instructions electric current, feedback electricity
Stream, the rising edge slope and failing edge slope and duration of peak value etc. for being fitted voltage, feedback voltage waveform.
Whether step S502, decision instruction electric current and feedback current and fitting voltage and feedback voltage are synchronous.
Whether decision instruction electric current and feedback current and fitting voltage and feedback voltage are synchronous, it is necessary first to according to described
Instruction current, the feedback current of the welding machine of acquisition, fitting voltage, feedback voltage obtain described instruction electric current and the feedback current
The absolute value of the absolute value of difference and the fitting voltage and the feedback voltage difference；Then judge described instruction electric current and institute
It is pre- whether the absolute value and the fitting voltage and the absolute value of the feedback voltage difference for stating feedback current difference meet second
If condition.
Wherein, the second preset condition refers to the absolute value and fitting voltage of instruction current and the feedback current difference
Specific threshold value is both greater than with the absolute value of feedback voltage difference.
When the absolute value of the absolute value and fitting voltage and feedback voltage difference of decision instruction electric current and feedback current difference
When meeting the second preset condition, then decision instruction electric current and feedback current and fitting voltage are asynchronous with feedback voltage.For example,
When the absolute value of instruction current and the difference of each point of the feedback current is both greater than 5A and is fitted voltage and feedback voltage is each
The absolute value of the difference of a point then assert instruction current and feedback current and fitting voltage and feedback voltage not when being both greater than 15V
It is synchronous, when instruction current and the absolute value of the feedback current difference are not both greater than 5A or fitting voltage and feedback voltage difference
Absolute value instruction current and feedback current are then assert when not being both greater than 15V and to be fitted voltage synchronous with feedback voltage.
In some exemplary embodiments, in order to more accurately judge feedback current and instruction current and feedback voltage with
Fitting voltage whether synchronize, usually instruction current and be fitted voltage waveform rising edge and failing edge according between the regular hour
Every the absolute value for take the current differential and voltage difference that a little calculate the point.As shown in figure 8, in instruction current and fitting electricity
The rising edge and failing edge of pressure determine some points, such as point 1,2,3 every 20 microseconds respectively, in every bit all detection instruction electric currents
With the longitudinal bias of feedback current, and the absolute value of longitudinal bias is calculated separately.For example, the instruction in Fig. 8 current curve diagram
At 2 points of rise-time of current, the available 2 electric current longitudinal bias Y2 pointed out.Fitting voltage and feedback voltage can similarly be obtained
Voltage difference absolute value, details are not described herein again.
When the absolute value of the absolute value and fitting voltage and feedback voltage difference of decision instruction electric current and feedback current difference
When meeting the second preset condition, then decision instruction electric current and feedback current and fitting voltage are asynchronous with feedback voltage.
For example, when the absolute value of the current differential of judgement acquisition is both greater than the absolute of each voltage difference of 5A and acquisition
Value can be determined that when being both greater than 15V refers to that feedback current and instruction current and feedback voltage are asynchronous with fitting voltage.
For another example when the absolute value of each current differential of judgement acquisition is not both greater than each voltage difference of 5A and acquisition
The absolute value of value can be determined that when not being both greater than 15V refers to that feedback current and instruction shop electric current and feedback voltage and fitting voltage are same
Step.
If feedback current and instruction current and feedback voltage and fitting voltage synchronous, do not need to carry out any behaviour
Make, directly execution step S509, normal control output.
If feedback current and instruction current and feedback voltage are asynchronous with fitting voltage, S503 can be entered step,
Adjust the coefficient of proportional-plus-integral controller on welding circuit.
In some embodiments, the source of welding current carries proportional-plus-integral controller, can be by adjusting pi controller
Coefficient adjustment source of welding current circuit feedback current, make feedback current synchronous with instruction current with this.
Step S504, judges whether the coefficient of proportional-plus-integral controller meets third preset condition.
If the proportionality coefficient and integral coefficient of the pi controller after adjusting float up and down, adjusting does not all surpass respectively
Cross certain preset range, then it is assumed that current proportional, integral control coefrficient meets third preset condition.For example, if after adjusting
The proportionality coefficient of pi controller float up and down without departing from 20 the percent of initial proportion coefficient, and integral coefficient
Floating up and down, it is default to meet third without departing from 20 percent coefficient for thinking proportional-plus-integral controller of initial integration coefficient
Condition.
When judgement adjusts the coefficient of proportional-plus-integral controller without departing from certain preset range, step S505 need to be executed.
Step S505 judges whether the feedback current is synchronous with described instruction electric current.
Not yet make feedback current and instruction electricity on welding circuit after the coefficient of proportional-plus-integral controller if it is determined that adjusting
Stream synchronizes, and thens follow the steps S503, circuits sequentially, until jumping out circulation.
If adjust makes feedback current synchronous with instruction current on welding circuit after the coefficient of proportional-plus-integral controller,
Then enter step S508.
When the coefficient that judgement adjusts proportional-plus-integral controller exceeds certain preset range, step 506 is executed, is terminated
Control.
Feedback current and instruction electricity cannot still be made after the coefficient for adjusting pi controller exceeds preset range
Stream synchronizes, then determines instruction current and feedback current can not be made same by adjusting ratio-integration control controller coefficient
Step, i.e., executable step S506.
Step S506 restores initial proportion-integral controller coefficient and adjusts described instruction electric current.
If it is determined that instruction current and feedback cannot be made by the coefficient for adjusting proportional-plus-integral controller on welding circuit
Current synchronization, then restore initial proportion-integral controller coefficient and adjustment instruction electric current makes feedback current and instruction current
It is synchronous.
Wherein, initial proportion-integral controller coefficient refers to that the coefficient of adjustment proportional-plus-integral controller is set before
Proportional-plus-integral controller coefficient.
The adjustment of instruction current can adjust the slope of rising edge and failing edge according to certain variation coefficient.For example, can
With with the rising edge slope and failing edge slope of the changing rule adjustment instruction electric current of 20 amperes/millisecond every time, so that feedback electricity
Stream and instruction current.
The adjustment of instruction current is also possible to the direct adjustment instruction electricity of slope according to feedback current rising edge and failing edge
The rising edge and failing edge of stream.For example, after the rising edge change rate and failing edge change rate of acquisition instruction electric current and feedback current
It was found that there are biggish differences for the slope of two kinds of electric currents, can directly be adjusted using the slope of feedback current rising edge and failing edge
The rising edge slope and failing edge slope of instruction current are so that instruction current is synchronous with feedback current.
As shown in figure 9, the rising edge coefficient and failing edge coefficient of regulating command electric current can make instruction current 603 along void
604 variation track of line current is close to feedback current.Since instruction current changes, fitting voltage can also be changed correspondingly, but quasi-
Closing voltage may not necessarily be close to feedback voltage.
Step S507 judges whether described instruction electric current is synchronous with the feedback current.
After instruction current adjusts, also to judge whether feedback current is synchronous with instruction current, when decision instruction electric current
Make feedback current synchronous with instruction current after adjustment, then enters step S508.
Step S508, judges whether molten drop opportunity that falls off meets the first preset condition.
When being exactly that molten drop falls off when molten drop falls off at the specified region of electric current (instruction current is synchronous with feedback current)
Machine meets the first preset condition.For example, the specified region also refers at electric current failing edge 60% at electric current base value 30%
Range.Wherein, the electric current for the variation pulsed when pulse current, the lowest point of electric current are background current, and highest point is peak value electricity
Stream.For example, as shown in Figure 10, it is believed that when molten drop meets the first preset condition when the 1. region of instruction current falls off, when
Molten drop instruction current 2., 3. region falls off when be unsatisfactory for the first preset condition.
When if it is determined that molten drop falls off, opportunity meets the first preset condition, i.e., molten drop falls off in the 1. region of instruction current,
Step S510 is directly executed, it is normal to export.
If it is determined that then needing to execute step S509 when the molten drop opportunity of falling off is unsatisfactory for the first preset condition.
Step S509, the length of adjustment instruction Peak of current pulse time.
When judging that molten drop does not fall off in specified region, need to adjust current peak time span, so that molten drop is de-
Falling the time is in specified region.
At this point, feedback current is synchronous with instruction current, adjustment instruction Peak of current pulse time span will not influence finger
Enable the synchronism of electric current and feedback current.As shown in fig. 7, T-IP represents the length of the time to peak of electric current, when judging molten drop
When 2. region falls off, need to shorten the length of instruction current peak value of pulse time so that molten drop falls off the time from instruction current
2. the 1. region of instruction current is shifted in region；When judging molten drop when 3. region falls off, need to lengthen instruction current peak value of pulse
So that molten drop falls off, the time shifts to the 1. region of instruction current from the 3. region of instruction current to the length of time；When judging that molten drop exists
When the 1. region of instruction current falls off, then can determine that molten drop fall off opportunity meet the first preset condition, directly execute step S510,
Normal output.
By step S501~step S510, feedback current can be made synchronous with instruction current, and then improve welding machine
Consistency and stability when welding.
The present embodiment adjusts feedback electricity by the operation of adjusting proportional integration-controller coefficient simple to operation first
The synchronism of stream and instruction current, when the coefficient that judgement adjusts proportional-plus-integral controller cannot achieve feedback current always and refer to
The synchronization of electric current is enabled, then the waveform of further regulating command electric current is to ensure that instruction current is synchronous with feedback current.By above
Step can make feedback current synchronous with instruction current, on this basis, adjust molten drop and fall off opportunity to ensure welder
Stability.
Figure 11 is a kind of block diagram of welding current control device shown according to an exemplary embodiment.Referring to Fig.1 1, it should
Device 110 includes welding machine parameter collection module 111, current adjusting module 112, fall off opportunity judgment module 113 and current impulse
Time to peak adjusts module 114.
Wherein, welding machine parameter collection module 111 is configurable to the instruction current, feedback current, fitting electricity of acquisition welding machine
Pressure, feedback voltage.
Current adjusting module 112 is configurable to judge described instruction electric current and the feedback current and fitting electricity
Press it is whether synchronous with the feedback voltage, if asynchronous, execute electric current adjustment operate so that described instruction electric current and it is described instead
Supply current is synchronous.
The opportunity judgment module 113 that falls off is configurable to judge whether described instruction electric current is synchronous with the feedback current,
If synchronous, judge whether molten drop opportunity that falls off meets the first preset condition.
Peak of current pulse time regulating module 114 is configurable to if it is determined that the molten drop opportunity of falling off is unsatisfactory for first in advance
If condition, the length of adjustment instruction Peak of current pulse time make the molten drop fall off opportunity meet the first preset condition.
In the exemplary embodiment, as shown in figure 12, current adjusting module 112 can also include: synchronous judging submodule
1121, it is configurable to instruction current, the feedback current of the welding machine according to the acquisition, fitting voltage, feedback voltage obtain institute
State the absolute value of instruction current and the feedback current difference and the absolute value of the fitting voltage and the feedback voltage difference；
And judge the absolute value and the fitting voltage and the feedback voltage difference of described instruction electric current and the feedback current difference
Absolute value whether meet the second preset condition；Proportional-plus-integral controller coefficient submodule 1122 is adjusted, is configurable to adjust
The coefficient of proportional-plus-integral controller on welding circuit；Instruction current adjusting submodule 1123 is configurable to adjustment described instruction
Electric current；Joint regulation submodule 1124 is configurable to the coefficient of proportional-plus-integral controller on adjustment welding circuit, if sentenced
The coefficient for adjusting proportional-plus-integral controller on welding circuit that breaks can not make the feedback current and described instruction electric current same
Step, then restore initial proportion-integral controller coefficient, and adjust described instruction electric current.
In the exemplary embodiment, as shown in figure 13, the synchronization judging unit 1121 in Figure 12 can also include electric current, electricity
Pressure difference acquiring unit 11211 is configurable to rising edge and the decline of the waveform in described instruction electric current, the fitting voltage
Along the absolute value and the fitting voltage and feedback electricity according to certain time interval acquisition instruction electric current and feedback current difference
The absolute value of pressure difference；Synchronous judging unit 11212, is configurable to judge described instruction electric current and the feedback current difference
Absolute value and the fitting voltage and the absolute value of the feedback voltage difference whether meet the second preset condition.
In some embodiments, the instruction current of the acquisition welding machine, feedback current, fitting voltage, feedback voltage include
Acquire described instruction electric current, the feedback current, the fitting voltage, the rising edge slope of the feedback voltage waveform and decline
Along slope, duration of peak value.
Due to each functional module and above-mentioned welding controlling party of the welding controller 110 of example embodiments of the present invention
The step of example embodiment of method, is corresponding, therefore details are not described herein.
Below with reference to Figure 14, it illustrates the computer systems for the terminal device for being suitable for being used to realize the embodiment of the present application
000 structural schematic diagram.Terminal device shown in Figure 14 is only an example, function to the embodiment of the present application and should not be made
With range band come any restrictions.
As shown in figure 14, computer system 000 includes central processing unit (CPU) 001, can be read-only according to being stored in
Program in memory (ROM) 002 or be loaded into the program in random access storage device (RAM) 003 from storage section 008 and
Execute various movements appropriate and processing.In RAM 003, also it is stored with system 000 and operates required various programs and data.
CPU 001, ROM 002 and RAM 003 are connected with each other by bus 004.Input/output (I/O) interface 005 is also connected to always
Line 004.
I/O interface 005 is connected to lower component: the importation 006 including keyboard, mouse etc.；It is penetrated including such as cathode
The output par, c 007 of spool (CRT), liquid crystal display (LCD) etc. and loudspeaker etc.；Storage section 008 including hard disk etc.；
And the communications portion 009 of the network interface card including LAN card, modem etc..Communications portion 009 via such as because
The network of spy's net executes communication process.Driver 010 is also connected to I/O interface 005 as needed.Detachable media 011, such as
Disk, CD, magneto-optic disk, semiconductor memory etc. are mounted on as needed on driver 010, in order to read from thereon
Computer program be mounted into storage section 008 as needed.
Particularly, in accordance with an embodiment of the present disclosure, it may be implemented as computer above with reference to the process of flow chart description
Software program.For example, embodiment of the disclosure includes a kind of computer program product comprising be carried on computer-readable medium
On computer program, which includes the program code for method shown in execution flow chart.In such reality
It applies in example, which can be downloaded and installed from network by communications portion 009, and/or from detachable media
011 is mounted.When the computer program is executed by central processing unit (CPU) 001, executes and limited in the system of the application
Above-mentioned function.
It should be noted that computer-readable medium shown in the application can be computer-readable signal media or meter
Calculation machine readable storage medium storing program for executing either the two any combination.Computer readable storage medium for example can be --- but not
Be limited to --- electricity, magnetic, optical, electromagnetic, infrared ray or semiconductor system, device or device, or any above combination.Meter
The more specific example of calculation machine readable storage medium storing program for executing can include but is not limited to: have the electrical connection, just of one or more conducting wires
Taking formula computer disk, hard disk, random access storage device (RAM), read-only memory (ROM), erasable type may be programmed read-only storage
Device (EPROM or flash memory), optical fiber, portable compact disc read-only memory (CD-ROM), light storage device, magnetic memory device,
Or above-mentioned any appropriate combination.In this application, computer readable storage medium can be it is any include or storage journey
The tangible medium of sequence, the program can be commanded execution system, device or device use or in connection.And at this
In application, computer-readable signal media may include in a base band or as carrier wave a part propagate data-signal,
Wherein carry computer-readable program code.The data-signal of this propagation can take various forms, including but unlimited
In electromagnetic signal, optical signal or above-mentioned any appropriate combination.Computer-readable signal media can also be that computer can
Any computer-readable medium other than storage medium is read, which can send, propagates or transmit and be used for
By the use of instruction execution system, device or device or program in connection.Include on computer-readable medium
Program code can transmit with any suitable medium, including but not limited to: wireless, electric wire, optical cable, RF etc. are above-mentioned
Any appropriate combination.
Flow chart and block diagram in attached drawing are illustrated according to the system of the various embodiments of the application, method and computer journey
The architecture, function and operation in the cards of sequence product.In this regard, each box in flowchart or block diagram can generation
A part of one module, program segment or code of table, a part of above-mentioned module, program segment or code include one or more
Executable instruction for implementing the specified logical function.It should also be noted that in some implementations as replacements, institute in box
The function of mark can also occur in a different order than that indicated in the drawings.For example, two boxes succeedingly indicated are practical
On can be basically executed in parallel, they can also be executed in the opposite order sometimes, and this depends on the function involved.Also it wants
It is noted that the combination of each box in block diagram or flow chart and the box in block diagram or flow chart, can use and execute rule
The dedicated hardware based systems of fixed functions or operations is realized, or can use the group of specialized hardware and computer instruction
It closes to realize.
Being described in unit involved in the embodiment of the present application can be realized by way of software, can also be by hard
The mode of part is realized.Described unit also can be set in the processor, for example, can be described as: a kind of processor packet
Include transmission unit, acquiring unit, determination unit and first processing units.Wherein, the title of these units is under certain conditions simultaneously
The restriction to the unit itself is not constituted.
As on the other hand, present invention also provides a kind of computer-readable medium, which be can be
Included in equipment described in above-described embodiment；It is also possible to individualism, and without in the supplying equipment.Above-mentioned calculating
Machine readable medium carries one or more program, when said one or multiple programs are executed by the equipment, makes
Obtaining the equipment can realize that function includes: the instruction current for acquiring welding machine, feedback current, fitting voltage, feedback voltage；Described in judgement
Whether instruction current and the feedback current and the fitting voltage and the feedback voltage are synchronous, if asynchronous, restore
Initial proportion-integral controller coefficient simultaneously adjusts described instruction electric current and makes described instruction electric current and the feedback current same
Step；If it is determined that described instruction electric current is synchronous with the feedback current, judge whether molten drop opportunity that falls off meets the first default item
Part；If it is determined that the molten drop opportunity of falling off is unsatisfactory for the first preset condition, the length of adjustment instruction Peak of current pulse time makes
The molten drop fall off opportunity meet the first preset condition.It can be reduced using the welding current control method that the disclosure provides by anti-
Welding defect caused by supply current and instruction current are not inconsistent enables welding current to stablize welding.
Through the above description of the embodiments, those skilled in the art is it can be readily appreciated that example described herein is implemented
Mode can also be realized by software realization in such a way that software is in conjunction with necessary hardware.Therefore, the present invention is implemented
The technical solution of example can be embodied in the form of software products, which can store in a non-volatile memories
In medium (can be CD-ROM, USB flash disk, mobile hard disk etc.), including some instructions are used so that a calculating equipment (can be a
People's computer, server, mobile terminal or smart machine etc.) it executes according to the method for the embodiment of the present invention, such as Fig. 2
Step shown in one or more.
In addition, above-mentioned attached drawing is only the schematic theory of processing included by method according to an exemplary embodiment of the present invention
It is bright, rather than limit purpose.It can be readily appreciated that the time that above-mentioned processing shown in the drawings did not indicated or limited these processing is suitable
Sequence.In addition, be also easy to understand, these processing, which can be, for example either synchronously or asynchronously to be executed in multiple modules.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
His embodiment.The disclosure is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Adaptive change follow general principle of the invention and the common knowledge in the art do not applied including the present invention or
Conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by claim
It points out.
It should be understood that the present invention is not limited to the detailed construction that there have shown, attached drawing mode or implementation method,
On the contrary, it is intended to cover comprising various modifications and equivalence setting in the spirit and scope of the appended claims.
Claims (10)
1. a kind of welding control method characterized by comprising
Acquire the instruction current, feedback current, fitting voltage, feedback voltage of welding machine；
Judge whether described instruction electric current and the feedback current and the fitting voltage and the feedback voltage are synchronous, if
It is asynchronous, electric current adjustment operation is executed so that described instruction electric current is synchronous with the feedback current；
Judge whether described instruction electric current is synchronous with the feedback current, if synchronous, judges whether completely molten drop falls off opportunity
The first preset condition of foot；
If it is determined that the molten drop opportunity of falling off is unsatisfactory for the first preset condition, the length of adjustment instruction Peak of current pulse time makes
The molten drop fall off opportunity meet the first preset condition.
2. the method according to claim 1, wherein execution electric current adjustment operation includes: adjustment welding electricity
The coefficient of road proportional-plus-integral controller.
3. the method according to claim 1, wherein execution electric current adjustment operation includes: the adjustment finger
Enable electric current.
4. the method according to claim 1, wherein execution electric current adjustment operation includes: adjustment welding electricity
The coefficient of road proportional-plus-integral controller；
If it is determined that the coefficient of proportional-plus-integral controller can not make the feedback current and described on the adjustment welding circuit
Instruction current is synchronous, then restores initial proportion-integral controller coefficient, and adjust described instruction electric current.
5. according to claim 1,2,3 or 4 the method, which is characterized in that the judgement described instruction electric current and the feedback
Electric current and the fitting voltage and the feedback voltage whether synchronize include:
According to the instruction current of the welding machine of the acquisition, feedback current, be fitted voltage, feedback voltage obtain described instruction electric current with
The absolute value of the absolute value of the feedback current difference and the fitting voltage and the feedback voltage difference；And
Judge described instruction electric current and the feedback current difference absolute value and the fitting voltage and the feedback voltage it is poor
Whether the absolute value of value meets the second preset condition.
6. method according to claim 5, which is characterized in that the acquisition described instruction electric current and the feedback current difference
Absolute value and the fitting voltage and the absolute value of the feedback voltage difference include:
Described in obtaining in described instruction electric current, the rising edge of the waveform of the fitting voltage and failing edge according to certain time interval
The absolute value of the absolute value and the fitting voltage and the feedback voltage difference of instruction current and the feedback current difference.
7. the method according to claim 1, wherein
Instruction current, feedback current, fitting voltage, the feedback voltage of the acquisition welding machine include acquisition described instruction electric current, institute
When stating the rising edge slope and failing edge slope, peak follow of feedback current, the fitting voltage, the feedback voltage waveform
Between.
8. a kind of electric arc controller characterized by comprising
Welding machine parameter collection module is configured to the instruction current, feedback current, fitting voltage, feedback voltage of acquisition welding machine；
Current adjusting module, be configured to judge described instruction electric current and the feedback current and the fitting voltage and it is described instead
Whether feedthrough voltage synchronizes, if asynchronous, executes electric current adjustment operation so that described instruction electric current is synchronous with the feedback current；
Fall off opportunity judgment module, is configured to judge whether described instruction electric current is synchronous with the feedback current, if synchronous,
Judge whether molten drop opportunity that falls off meets the first preset condition；
Peak of current pulse time regulating module is configured to adjust if it is determined that the molten drop opportunity of falling off is unsatisfactory for the first preset condition
The length of whole instruction current peak value of pulse time make the molten drop fall off opportunity meet the first preset condition.
9. a kind of electronic equipment characterized by comprising
One or more processors；
Storage device, for storing one or more programs,
When one or more of programs are executed by one or more of processors, so that one or more of processors are real
Now such as method of any of claims 1-7.
10. a kind of computer-readable medium, is stored thereon with computer program, which is characterized in that described program is held by processor
Such as method of any of claims 1-7 is realized when row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511697.3A CN109317785B (en) | 2018-12-11 | 2018-12-11 | Welding control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811511697.3A CN109317785B (en) | 2018-12-11 | 2018-12-11 | Welding control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109317785A true CN109317785A (en) | 2019-02-12 |
| CN109317785B CN109317785B (en) | 2020-12-15 |
Family
ID=65256126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811511697.3A Active CN109317785B (en) | 2018-12-11 | 2018-12-11 | Welding control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109317785B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021023955A (en) * | 2019-08-02 | 2021-02-22 | 株式会社ダイヘン | Pulse arc welding control method |
| CN114309888A (en) * | 2022-01-17 | 2022-04-12 | 唐山松下产业机器有限公司 | Welding control method and device, electronic equipment and computer readable medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769721A (en) * | 2014-01-27 | 2014-05-07 | 深圳市佳士科技股份有限公司 | Electric arc welding actuate molten dropping short-circuit transitioning control circuit based on AVR (automatic voltage regulation) singlechip |
| CN105598558A (en) * | 2016-03-10 | 2016-05-25 | 大连理工大学 | Arc welding power source current double-closed-loop control method |
| CN105710504A (en) * | 2016-03-14 | 2016-06-29 | 唐山松下产业机器有限公司 | Pulse welding device and main welding process control method thereof |
| CN107398660A (en) * | 2017-07-26 | 2017-11-28 | 唐山松下产业机器有限公司 | For controlling the method, apparatus and system of welding machine |
| CN107414251A (en) * | 2017-09-15 | 2017-12-01 | 唐山松下产业机器有限公司 | Welding equipment, arcing determination processing method and device |
| CN108031952A (en) * | 2017-12-21 | 2018-05-15 | 唐山松下产业机器有限公司 | Control method, device, medium and the electronic equipment of gas metal-arc welding |
| CN108213671A (en) * | 2018-01-12 | 2018-06-29 | 唐山松下产业机器有限公司 | Control method, apparatus, electronic equipment and the computer-readable medium of electric welding machine |
| CN108290240A (en) * | 2016-01-21 | 2018-07-17 | 松下知识产权经营株式会社 | Pulse arc welding control method and pulse arc welding device |
| CN108712131A (en) * | 2018-06-25 | 2018-10-26 | 哈尔滨理工大学 | A kind of current feed-forward method and device adjusted based on proportion integral modulus |
-
2018
- 2018-12-11 CN CN201811511697.3A patent/CN109317785B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103769721A (en) * | 2014-01-27 | 2014-05-07 | 深圳市佳士科技股份有限公司 | Electric arc welding actuate molten dropping short-circuit transitioning control circuit based on AVR (automatic voltage regulation) singlechip |
| CN108290240A (en) * | 2016-01-21 | 2018-07-17 | 松下知识产权经营株式会社 | Pulse arc welding control method and pulse arc welding device |
| CN105598558A (en) * | 2016-03-10 | 2016-05-25 | 大连理工大学 | Arc welding power source current double-closed-loop control method |
| CN105710504A (en) * | 2016-03-14 | 2016-06-29 | 唐山松下产业机器有限公司 | Pulse welding device and main welding process control method thereof |
| CN107398660A (en) * | 2017-07-26 | 2017-11-28 | 唐山松下产业机器有限公司 | For controlling the method, apparatus and system of welding machine |
| CN107414251A (en) * | 2017-09-15 | 2017-12-01 | 唐山松下产业机器有限公司 | Welding equipment, arcing determination processing method and device |
| CN108031952A (en) * | 2017-12-21 | 2018-05-15 | 唐山松下产业机器有限公司 | Control method, device, medium and the electronic equipment of gas metal-arc welding |
| CN108213671A (en) * | 2018-01-12 | 2018-06-29 | 唐山松下产业机器有限公司 | Control method, apparatus, electronic equipment and the computer-readable medium of electric welding machine |
| CN108712131A (en) * | 2018-06-25 | 2018-10-26 | 哈尔滨理工大学 | A kind of current feed-forward method and device adjusted based on proportion integral modulus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021023955A (en) * | 2019-08-02 | 2021-02-22 | 株式会社ダイヘン | Pulse arc welding control method |
| JP7285041B2 (en) | 2019-08-02 | 2023-06-01 | 株式会社ダイヘン | Pulse arc welding control method |
| CN114309888A (en) * | 2022-01-17 | 2022-04-12 | 唐山松下产业机器有限公司 | Welding control method and device, electronic equipment and computer readable medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109317785B (en) | 2020-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109317785A (en) | Welding control method | |
| KR20040022418A (en) | Electric arc welding system | |
| CN108127295B (en) | Wire feed control method and device | |
| CN106211411A (en) | Modulating device and ligthing paraphernalia | |
| CN108031952B (en) | Control method, device, medium and the electronic equipment of gas metal-arc welding | |
| CN108213671B (en) | Method and device for controlling electric welding machine, electronic equipment and computer readable medium | |
| CN100449437C (en) | Group control system for multiple welding power supply | |
| CN107498146B (en) | Welding system, arc welding control device and method | |
| CN204906242U (en) | High redundancy excitation system based on distributed control | |
| CN109951087A (en) | Intelligent rectifier bridge High redundancy synchronous method based on FPGA and communication network | |
| CN110802308B (en) | Control method and device for wire feeding in electric arc welding and electronic equipment | |
| CN105813315A (en) | Series module power supply-based professional lighting power supply monitoring and controlling method and system | |
| CN105813318A (en) | Area power electricity supply-based stage and movie and television lighting power supply management method and system | |
| CN111872514B (en) | Burn-back control method for digital welding machine and related equipment | |
| CN108287887A (en) | A kind of multi-mode matching method and device | |
| JP6056768B2 (en) | Power system tree display system and power system tree display method | |
| CN105813328A (en) | Area power electricity supply-based stage lighting power supply monitoring and detecting method and system | |
| CN105813342A (en) | Series module power supply-based performance lighting power supply monitoring and controlling method and system | |
| CN105813338A (en) | Series module power supply-based stage lighting power supply management method and system | |
| CN105813322A (en) | Professional lighting power supply monitoring and detecting method and system | |
| JP2006340438A (en) | Power unit, information processor, and power control method | |
| CN214670562U (en) | Intelligent networking equipment mainboard and electronic equipment | |
| CN201017206Y (en) | Multiple welding source group control device | |
| JP2017108489A (en) | Preceding control determination device, preceding control device, and preceding control determination program | |
| CN115327262A (en) | Indication method, device, equipment and medium applied to transformer substation security fence |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |