CN107520525A - A kind of dynamic correcting method of welding machine output display value - Google Patents
A kind of dynamic correcting method of welding machine output display value Download PDFInfo
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- CN107520525A CN107520525A CN201710407463.3A CN201710407463A CN107520525A CN 107520525 A CN107520525 A CN 107520525A CN 201710407463 A CN201710407463 A CN 201710407463A CN 107520525 A CN107520525 A CN 107520525A
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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
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
Abstract
The invention discloses a kind of welding machine output display value dynamic correcting method.The bearing calibration of the present invention obtains the actual value and measured value of welding machine output parameter, and wherein actual value is the reality output parameter value of welding machine, and show value is the output parameter value shown by welding machine display module；The actual value and show value of at least one set of output parameter obtained according to same time point, obtain the matched curve of actual value and show value and according to matched curve, correct show value and update show value in display module.By the present invention, welding machine output display value interior in a big way can be made more accurate, ensure welding quality, improve the exploitativeness of welding procedure, and welding machine correction time can be reduced, substantially reduce frequency of maintenance, improve production efficiency, save cost.
Description
Technical field
The invention belongs to welding machine output calibration field, specifically, is related to a kind of dynamic calibration of welding machine output display value
Method.
Background technology
For a long time in welding process, there is the output current, defeated of welding machine in the welding machine (source of welding current) that uses to prior art
Go out the problem of voltage show value is not inconsistent with actual value, i.e. the output error problem of welding machine in itself.The main reason for above mentioned problem, has
Two：First, welding machine is during long-term use, because welding machine electric power internal shunt resistance, divider resistance after electric current by producing
Fuel factor, reciprocal use is repeatedly heat-treated equivalent to resistance material, therefore the resistivity of resistance material, physical dimension
(length, cross-sectional area etc.) can change so as to cause resistance variations, make the measured value of welding machine ammeter itself and voltmeter
It is inaccurate；Second, the permeability magnetic material of mutual inductor can also produce fuel factor during magnetic conduction by electric current in welding machine, influence to lead
Magnetic property, and then influence the accuracy of welding machine ammeter itself and voltmeter measured value.Currently used solution method is to weld
Machine returns to genuine, and the electric current and voltage of welding machine are detected using standard amperemeters, voltmeter, then corrects welding current table, voltage
Table shows registration.But this method has the disadvantage that：First, the standard amperemeters and voltmeter that many producers use also are deposited in itself
In certain error, the correction of welding machine is influenceed；Second, depot repair wastes the plenty of time, largely effects on production efficiency and cost；The
Three, the method can only correct certain point and its neighbouring current value, magnitude of voltage of welding machine output, belong to static shift correction, and can not be simultaneously
Correct current value, the magnitude of voltage in the range of whole welding process.
It is not consistent with the actual value that actual welding machine exports to solve the output display value of welding machine, and the weldering of dynamic renewal in real time
Machine output display value.
In view of this it is special to propose the present invention.
The content of the invention
The technical problem to be solved in the present invention is overcome the deficiencies in the prior art, there is provided a kind of welding machine output display value is moved
State bearing calibration.
In order to solve the above technical problems, the present invention is using the basic conception of technical scheme：
A kind of dynamic correcting method of welding machine output display value, including step：
S1, the actual value and measured value for obtaining welding machine output parameter, wherein actual value are the reality output parameter value of welding machine,
Show value is the output parameter value shown by welding machine display module,
S2, according to same time point obtain at least one set of output parameter actual value and show value, obtain actual value and
The matched curve of show value,
S3, according to matched curve, correct show value and update show value in display module.
Further, in addition to step
S4, with a setpoint frequency repeat step S3, constantly update show value and simultaneously shown in display module.
Further, in addition to step
S5, after welding machine uses a period of time, repeat step S1 to S4, update matched curve, and bent according to new fitting
Line corrects the show value of welding machine output parameter.
Further, actual value and the measured value that the output parameter of welding machine is obtained in S1 are the more welding machine output parameters of acquisition
Actual value and measured value.
Further, it is to obtain multigroup weldering in a continuous time section to obtain the actual value of welding machine output parameter and show value
The actual value and show value of machine output parameter.
Further, S2 be specially according to can approximate reverse answer the actual value of multigroup output parameter that welding machine continuously works and aobvious
Indicating value, draw the matched curve of actual value and show value.
Further, it is in a period of time that the actual value of more welding machine output parameters and show value are obtained within a period of time
A series of interior actual value and show value that more welding machine output parameters are continuously acquired with a predeterminated frequency, to establish approximate continuous works
The actual value of welding machine output parameter and the one-to-one relationship of show value of work.
Further, the predeterminated frequency of the actual value and show value that obtain more welding machine output parameters is 50Hz.
Further, in the matched curve of actual value and show value, show value is independent variable, and actual value is dependent variable.
Further, welding machine output parameter is specially welding machine output current and voltage.
A kind of dynamic correction device of welding machine output display value, it is characterised in that the dynamic correction device includes accurate survey
Module, built-in measurement module, computing storage module, display module are measured, wherein：
Accurate measurement module and built-in measurement module obtain the actual value and show value of welding machine output parameter, wherein actual value
For the reality output parameter value of welding machine, show value is the output parameter value shown by welding machine display module,
The actual value and show value at least one set of output parameter that computing storage module obtains according to same time point, obtain
The matched curve of actual value and show value, and be stored therein in,
Computing storage module corrects show value and shown in display module according to matched curve.
Further, computing storage module is constantly updated show value with a setpoint frequency and shown according to matched curve
Module shows,
After welding machine uses a period of time, computing storage module obtains according to accurate measurement module and built-in measurement module
The actual value and show value of welding machine output parameter, matched curve is updated, and welding machine output parameter is corrected according to new matched curve
Show value.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
1st, welding machine output display value can be more accurately corrected, more really and accurately reacts the working condition of welding machine, from
And the quality of welding is farthest ensure that, improve the exploitativeness of welding procedure；
2nd, quickly and easily butt welding machine output display value can be corrected, welding machine is overhauled without returning factory, is greatly reduced
The time of butt welding machine output display correction, improve production efficiency and reduce cost；
3rd, butt welding machine output display can be corrected in real time, the output display of dynamic butt welding machine is corrected,
Butt welding machine output display is corrected in real time in the overall process of welding machine work, so as to ensure that the quality of welding.
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
A part of the accompanying drawing as the present invention, for providing further understanding of the invention, of the invention is schematic
Embodiment and its illustrate to be used to explain the present invention, but do not form inappropriate limitation of the present invention.Obviously, drawings in the following description
Only some embodiments, to those skilled in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.In the accompanying drawings：
Fig. 1 is one embodiment schematic diagram of the bearing calibration of the present invention；
Fig. 2 is another embodiment schematic diagram of the bearing calibration of the present invention；
Fig. 3 is another embodiment schematic diagram of the bearing calibration of the present invention；
Fig. 4 is the structural representation of the dynamic correction device of the present invention.
It should be noted that these accompanying drawings and word description are not intended as the design model limiting the invention in any way
Enclose, but be that those skilled in the art illustrate idea of the invention by reference to specific embodiment.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in embodiment is clearly and completely described, following examples be used for illustrate the present invention, but
It is not limited to the scope of the present invention.
Describe to realize the mobile terminal of each embodiment of the present invention referring now to accompanying drawing.In follow-up description, use
For represent component such as " module ", " part " or " unit " suffix only for be advantageous to the present invention explanation, itself
Not specific meaning.Therefore, " module " can be used mixedly with " part ".
Embodiment one
As shown in figure 1, welding machine output display value dynamic correcting method comprises the following steps in the present embodiment：
S101, the actual value and measured value for obtaining welding machine output current/voltage, wherein actual value are the reality output of welding machine
Current/voltage value, show value are output current/magnitude of voltage shown by welding machine display module；
It is specifically, in current sensor access welding machine output circuit, voltage sensor and the positive and negative company of welding machine output electrode
Connect, the accurate actual value for measuring welding machine output current/voltage.Welding machine output current, the voltage of welding machine itself display are read simultaneously
Show value.
Such as：Utilize output of the current/voltage sensor butt welding machine of external accurate measuring systems in working condition
Current/voltage is accurately measured, and obtains the actual value of the output current/voltage of welding machine at work.While welding machine itself
Output display module can show the show value of output current/voltage when current welding machine works.
S102, at least one set of output current obtained according to same time point, the actual value and show value of voltage, obtain true
The matched curve of real value and show value；
It is specifically the actual value of the welding machine output current obtained by accurate system, and the display that synchronization obtains
Value is used as one group of data, and the show value of actual value and the synchronization acquisition of voltage enters data into calculating as one group of data
Machine, the matched curve of the actual value and show value of welding machine output current and voltage is respectively obtained according to algorithm.
For example, the t1 moment using accurate measuring systems obtain this moment welding machine output current/voltage actual value, together
When according to welding machine display module obtain the t1 moment welding machine output current/voltage show value.So actual value of electric current and aobvious
Indicating value, the actual value and show value of voltage are just corresponding one group of data, respectively by one group of one group of data of electric current and voltage
Data input computer or the chip for having operational capability, the curve for selecting to adapt to according to fitting algorithm, according to least square method
Linear equation is solved, obtains the matched curve of the actual value and show value of electric current and voltage respectively.
S103, according to matched curve, correct show value and update show value in display module.
After the matched curve for completing actual value and show value is established, according to actual value in matched curve and pair of show value
It should be related to, correct show value, and the show value of the current/voltage in display module after renewal correction.
The welding machine output display value correcting method of the present embodiment can be according to the relation between actual value and show value, can be easy
Correction welding machine output display value, save it is a large amount of it is existing need to return the factory-run school accurate times, and can accurately show weldering as far as possible
Machine output current/magnitude of voltage.
Embodiment two
As shown in Fig. 2 the bearing calibration of another welding machine output display value described in the present embodiment, comprises the following steps：
S201, the actual value and measured value for obtaining in continuous time section welding machine output current/voltage, it is a series of to establish
Welding machine output current/the actual value of voltage and the one-to-one relationship of show value of approximate continuous work, wherein actual value are weldering
Actual output current/magnitude of voltage of machine, show value are output current/magnitude of voltage shown by welding machine display module；
Be specifically, when welding machine is in running order, current sensor access welding machine output circuit in, voltage sensor with
The positive and negative connection of welding machine output electrode, it is accurate to measure welding machine output current, the actual value of voltage.Welding machine itself display is read simultaneously
The show value of welding machine output current/voltage.Said process is in a continuous time section with certain frequency continuously to current/voltage
Actual value and show value are obtained, and fixed frequency is that the actual value for the current/voltage that can meet to obtain and show value can be approximate
Reaction welding machine continuously works and establishes the frequency values of one-to-one relationship.
Such as：Utilize the output of the electric current of external accurate measuring systems, voltage sensor butt welding machine in working condition
Electric current, voltage are accurately measured, and obtain welding machine output current at work, the actual value of voltage.While welding machine itself
Output current, the show value of voltage when output display module can show the work of current welding machine.When welding machine is working condition, even
In continuous 10 minutes or 15 minutes, the actual value of the current/voltage of accurate measuring systems measurement is continuously acquired with 50Hz frequency
The show value of the current/voltage shown with display module, the actual value and show value of the current/voltage obtained under this frequency,
And actual value and show value can establish one-to-one relationship, the discrete point energy approximate reverse of acquisition answers welding machine output current/voltage
Continuous current/voltage value in the operating condition.
S202, the energy approximate reverse obtained according to same time point answer multigroup output current/voltage that welding machine continuously works
Actual value and show value, obtain the matched curve of actual value and show value；
It is specifically the actual value of the welding machine output current obtained by accurate system, and the display that synchronization obtains
Value is used as one group of data, and the show value of actual value and the synchronization acquisition of voltage is as one group of data, according to S1
Method obtains the actual value and show value of continuous multigroup current/voltage, enters data into computer, is respectively obtained according to algorithm
The matched curve of the actual value and show value of welding machine output current and voltage.
For example, the t1 moment using accurate measuring systems obtain this moment welding machine output current/voltage actual value, together
When according to welding machine display module obtain the t1 moment welding machine output current/voltage show value.So actual value of electric current and aobvious
Indicating value, the actual value and show value of voltage are just corresponding one group of data, with 50Hz one group of data of frequency acquisition, then 1 second
Clock can obtain the data of 50 groups of actual values and show value, gather 10 minutes, then obtain 30000 groups of data.Respectively by electric current
Data and voltage 30000 groups of data input computers or have the chip of operational capability, select to adapt to according to fitting algorithm
Curve, linear equation is solved according to least square method, the fitting for obtaining the actual value and show value of electric current and voltage respectively is bent
Line.
S203, according to matched curve, using show value as independent variable, actual value is that dependent variable corrects show value and in display mould
Block updates show value；
After the matched curve for completing actual value and show value is established, according to actual value in matched curve and pair of show value
It should be related to, correct show value, and the show value of the current/voltage in display module after renewal correction.
S204, in the welding machine course of work, S203 is constantly repeated with certain frequency and is shown in display module corrected
Show value.
After the matched curve of the actual value and show value of current/voltage determines, display that welding machine display module is shown
It is worth for according to the corrected show value of matched curve, with the work of welding machine, constantly according to the real output current/electricity of welding machine
Pressure value is corrected, and is shown with certain frequency.
Specifically, according to the matched curve of the actual value of the current/voltage of determination and show value, the display module of welding machine with
Such as 20Hz frequency is updated the show value after display correction, shape is dynamically run according to the work of welding machine in real time to reach
The output display value of condition butt welding machine is corrected.
The present embodiment is the further restriction of above-described embodiment one, and described obtains the true of welding machine output current/voltage
Value and show value are in certain continuous time end, and continuously actual value and show value are adopted with the frequency of a setting
Collection.So have the advantage that, enter with the actual value and show value of the continuous butt welding machine output current/voltage of a upper frequency
Go under the method for collection, can accurately obtain current/voltage actual value of the welding machine during continuous work as far as possible and show
The situation of change of indicating value, the discrete point of collection can press close to the full curve of welding machine work output current/voltage as far as possible, after being
Face is established matched curve and offered precise data as far as possible.
Collect it is multigroup can as far as possible after the data of approximate representation welding machine output current/voltage actual value and show value,
Being obtained using multi-group data in computer or in computing chip using fitting algorithm can expression actual value reported as precisely as possible and display
The matched curve of value relation.Finally further according to matched curve, it is corrected with the show value of certain frequency butt welding machine display module
Renewal, so as to the welding machine output display value corrected in real time.
With the welding machine output display value dynamic monitoring method of the present embodiment can accurately correct as far as possible welding machine output current/
The show value of voltage, the current/voltage value for allowing user to see are as close possible to real-time real welding machine output current/electricity
Pressure, so as to improve the quality of welding job, saves weld interval, improves welding machine operating efficiency.
Embodiment three
As shown in figure 3, the present embodiment is another implementation of welding machine output display value dynamic correcting method, including with
Lower step：
S301, welding machine output current, the actual value and measured value of voltage are obtained in continuous time section, it is a series of to establish
Welding machine output current/the actual value of voltage and the one-to-one relationship of show value of approximate continuous work, wherein actual value are weldering
The actual output current of machine, magnitude of voltage, show value be welding machine display module shown by output current, magnitude of voltage；
S302, the energy approximate reverse obtained according to same time point answer the multigroup output current, voltage that welding machine continuously works
Actual value and show value, obtain the matched curve of actual value and show value；
S303, relationship corresponding to matched curve write in computing storage module and according to plan in the form of program
Curve is closed, using show value as independent variable, actual value is that dependent variable corrects show value and updates show value in display module；
On the basis of embodiment two, further define after the matched curve of actual value and show value is obtained, will intend
Close the relationship corresponding to curve to write in computing storage module in the form of program, so as to the control system phase with welding machine
Connection, welding machine can be corrected renewal to show value with the frequency set according to matched curve；
S304, in the welding machine course of work, S303 is constantly repeated with certain frequency and is shown in display module corrected
Show value；
S305, after welding machine uses a period of time, repeat step S301 to S304, matched curve is updated, and according to new
The show value of matched curve correction welding machine output current/voltage.
This embodiment is compared with embodiment two, further defines welding machine after a period of time has been used, and song is fitted to you
Line is updated, so as to can guarantee that in the use of the output display value of welding machine afterwards can butt welding machine output as accurate as possible it is aobvious
Indicating value carries out dynamic calibration and shows corrected show value.
Example IV
As shown in figure 4, be a kind of dynamic correction device 400 of welding machine output display value,
The dynamic correction device 400 include accurate measurement module 401, built-in measurement module 402, computing storage module 403,
Display module 404, wherein：
Accurate measurement module and built-in measurement module obtain welding machine output current, the actual value of voltage in continuous time section
And measured value, to establish one a pair of a series of actual value of welding machine output current/voltage of approximate continuous work and show value
It should be related to, wherein actual value is the actual output current of welding machine, magnitude of voltage, and show value is the output shown by welding machine display module
Electric current, magnitude of voltage；
The energy approximate reverse that computing storage module obtains according to same time point answer multigroup output current that welding machine continuously works,
The actual value and show value of voltage, obtain the matched curve of actual value and show value；
Computing storage module writes relationship corresponding to matched curve in computing storage module in the form of program
And according to matched curve, using show value as independent variable, actual value is that dependent variable corrects show value and updates display in display module
Value.
Computing storage module is constantly updated show value with a setpoint frequency and shown in display module according to matched curve,
After welding machine uses a period of time, computing storage module obtains according to accurate measurement module and built-in measurement module
The actual value and show value of welding machine output parameter, matched curve is updated, and welding machine output parameter is corrected according to new matched curve
Show value.
Described above is only presently preferred embodiments of the present invention, not makees any formal limitation to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompting make it is a little change or be modified to
The equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modification, equivalent change and modification that above example is made, in the range of still falling within the present invention program.
Claims (10)
1. a kind of dynamic correcting method of welding machine output display value, it is characterised in that including step：
S1, the actual value and measured value for obtaining welding machine output parameter, wherein actual value are the reality output parameter value of welding machine, are shown
It is worth for the output parameter value shown by welding machine display module,
S2, at least one set of output parameter obtained according to same time point actual value and show value, obtain actual value and display
The matched curve of value,
S3, according to matched curve, correct show value and update show value in display module.
2. according to the method for claim 1, it is characterised in that also including step
S4, with a setpoint frequency repeat step S3, constantly update show value and simultaneously shown in display module.
3. method according to claim 1 or 2, it is characterised in that also including step
S5, after welding machine uses a period of time, repeat step S1 to S4, matched curve is updated, and according to new matched curve school
The show value of positive welding machine output parameter.
4. according to the method for claim 1, it is characterised in that actual value and the measurement of the output parameter of welding machine are obtained in S1
It is worth to obtain the actual value and measured value of more welding machine output parameters.
5. according to any described method in Claims 1-4, it is characterised in that obtain welding machine output parameter actual value and
Show value is the actual value and show value that more welding machine output parameters are obtained in a continuous time section.
6. according to any described method in claim 1 to 5, it is characterised in that S2 is specially to answer welding machine according to energy approximate reverse
The actual value and show value of the multigroup output parameter continuously to work, draw the matched curve of actual value and show value.
7. according to the method described in claim 5 or 6, it is characterised in that obtain more welding machine output ginsengs within a period of time
Several actual values and show value are the actual value for continuously acquiring more welding machine output parameters with a predeterminated frequency within a period of time
And show value, closed with establishing a series of actual value of welding machine output parameter of approximate continuous work and the one-to-one corresponding of show value
System.
8. according to any described method in claim 1 to 7, it is characterised in that in the matched curve of actual value and show value
In, show value is independent variable, and actual value is dependent variable.
9. a kind of dynamic correction device of welding machine output display value, it is characterised in that the dynamic correction device includes accurate measurement
Module, built-in measurement module, computing storage module, display module, wherein：
Accurate measurement module and built-in measurement module obtain the actual value and show value of welding machine output parameter, and wherein actual value is weldering
The reality output parameter value of machine, show value are the output parameter value shown by welding machine display module,
The actual value and show value at least one set of output parameter that computing storage module obtains according to same time point, obtain true
The matched curve of value and show value, and be stored therein in,
Computing storage module corrects show value and shown in display module according to matched curve.
10. dynamic correction device according to claim 9, it is characterised in that
Computing storage module is constantly updated show value with a setpoint frequency and shown in display module according to matched curve,
After welding machine uses a period of time, computing storage module is according to accurate measurement module and the welding machine of built-in measurement module acquisition
The actual value and show value of output parameter, matched curve is updated, and the aobvious of welding machine output parameter is corrected according to new matched curve
Indicating value.
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| CN112453645A (en) * | 2020-11-13 | 2021-03-09 | 重庆长安工业(集团)有限责任公司 | Electric welding machine calibration system for realizing synchronous data acquisition |
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Application publication date: 20171229 |