CN110369831A - Study of digital welding machine control system and method - Google Patents
Study of digital welding machine control system and method Download PDFInfo
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- CN110369831A CN110369831A CN201910670935.3A CN201910670935A CN110369831A CN 110369831 A CN110369831 A CN 110369831A CN 201910670935 A CN201910670935 A CN 201910670935A CN 110369831 A CN110369831 A CN 110369831A
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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
- B23K9/095—Monitoring or automatic control of welding parameters
Abstract
Study of digital welding machine control system provided by the invention, control cabinet provide different input voltages to arc-welding machine, and record the output voltage and output electric current of arc-welding machine respectively;Input voltage and corresponding output voltage to arc-welding machine are associated, and establish voltage control planning;It is also used to be associated the input voltage of arc-welding machine and corresponding output electric current, and establishes current control relationship;Receive the output voltage preset value or output electric current preset value of the arc-welding machine of user's input, and output voltage preset value or the corresponding input voltage of output electric current preset value are read from the voltage control planning or current control relationship, answer electric power to the arc-welding machine according to the input voltage output phase.The Study of digital welding machine control system solves the preset value of the output voltage of arc-welding machine present in existing arc-welding machine control method and the defect that actual value difference is very big.
Description
Technical field
The invention belongs to welding technology fields, and in particular to Study of digital welding machine control system and method.
Background technique
Existing full-bridge type controlled rectification arc-welding machine causes the output of arc-welding machine since its electrical characteristic is using slow drop characteristic
Signal is non-linear.The control method of existing arc-welding machine is to adjust analog voltage by potentiometer, controls the output signal of arc-welding machine,
Output signal in use process due to arc-welding machine is non-linear, so that user can not accurately control the output voltage of arc-welding machine,
Cause preset value and the actual value difference of the output voltage of arc-welding machine very big.
Summary of the invention
For the defects in the prior art, the present invention provides a kind of Study of digital welding machine control system and method, solves existing
The very big defect of the preset value and actual value difference of the output voltage of arc-welding machine present in arc-welding machine control method.
A kind of Study of digital welding machine control system, including control cabinet;
The control cabinet and external arc-welding mechatronics, for providing different input voltages to arc-welding machine, and respectively
Record the output voltage and output electric current of arc-welding machine;
The control cabinet is also used to be associated the input voltage of arc-welding machine and corresponding output voltage, and establishes voltage
Control planning;It is also used to be associated the input voltage of arc-welding machine and corresponding output electric current, and establishes current control relationship;
The control cabinet is also used to receive the output voltage preset value or output electric current preset value of the arc-welding machine of user's input,
And it is corresponding defeated from the voltage control planning or current control relationship reading output voltage preset value or output electric current preset value
Enter voltage, answers electric power to the arc-welding machine according to the input voltage output phase.
Preferably, the voltage control planning includes the list for recording input voltage and corresponding output voltage, either, horizontal
Coordinate is input voltage, and ordinate is the curve graph of output voltage;
The current control relationship includes recording the list of input voltage with corresponding output electric current, and either, abscissa is
Input voltage, ordinate are the curve graph for exporting electric current.
Preferably, the control cabinet be also used to according to the input voltage output phase answer electric power give the arc-welding machine it
Afterwards, it acquires the real-time output voltage of arc-welding machine and exports electric current in real time, when the real-time output voltage or real-time output electricity of arc-welding machine
When the difference of stream and the voltage preset value or output electric current preset value is greater than preset correction difference, control cabinet is to arc-welding machine
Input voltage is corrected.
Preferably, the control cabinet is specifically used for:
It is calculate by the following formula the slope A of input voltage in voltage control planning or current control relationship:
A=input voltage/output voltage, either, A=input voltage/output electric current;
It is calculate by the following formula real-time output voltage or in real time output electric current and the voltage preset value or output electric current is default
The difference B of value:
B=| real-time output voltage-output voltage |, either, B=| electric current-output electric current is exported in real time;|
It is calculate by the following formula the correction voltage C of control cabinet:
If A is positive number, C=input voltage+A × B;
If A is negative, C=input voltage-A × B;
Control cabinet answers electric power to the arc-welding machine according to the correction voltage C output phase.
Preferably, the control cabinet is also used to big greater than the number of the correction difference when being consecutively detected the difference B
When preset number of corrections maximum value, by the real-time output voltage of current arc-welding machine or output electric current and input voltage progress in real time
Association, re-establishes the voltage control planning or current control relationship.
Second aspect, a kind of Study of digital welding machine control method, comprising the following steps:
Different input voltages is provided to arc-welding machine, and records the output voltage and output electric current of arc-welding machine respectively;
Input voltage and corresponding output voltage to arc-welding machine are associated, and establish voltage control planning;
Input voltage and corresponding output electric current to arc-welding machine are associated, and establish current control relationship;
The output voltage preset value or output electric current preset value of the arc-welding machine of user's input are received, and is controlled from the voltage
Relationship or current control relationship read output voltage preset value or the corresponding input voltage of output electric current preset value, according to described defeated
Enter the corresponding electric power of voltage output to the arc-welding machine.
Preferably, the voltage control planning includes the list for recording input voltage and corresponding output voltage, either, horizontal
Coordinate is input voltage, and ordinate is the curve graph of output voltage;
The current control relationship includes recording the list of input voltage with corresponding output electric current, and either, abscissa is
Input voltage, ordinate are the curve graph for exporting electric current.
Preferably, this method it is described answered according to the input voltage output phase electric power to the arc-welding machine after, also wrap
It includes:
It acquires the real-time output voltage of arc-welding machine and exports electric current in real time;
When the real-time output voltage of arc-welding machine or real-time output electric current and the voltage preset value or output electric current preset value
Difference be greater than preset correction difference when, the input voltage of arc-welding machine is corrected.
Preferably, the input voltage to arc-welding machine, which is corrected, specifically includes:
It is calculate by the following formula the slope A of input voltage in voltage control planning or current control relationship:
A=input voltage/output voltage, either, A=input voltage/output electric current;
It is calculate by the following formula real-time output voltage or in real time output electric current and the voltage preset value or output electric current is default
The difference B of value:
B=| real-time output voltage-output voltage |, either, B=| electric current-output electric current is exported in real time;|
It is calculate by the following formula correction voltage C:
If A is positive number, C=input voltage+A × B;
If A is negative, C=input voltage-A × B;
Answer electric power to the arc-welding machine according to the correction voltage C output phase.
Preferably, this method it is described answered according to the input voltage output phase electric power to the arc-welding machine after, also wrap
It includes:
It is greater than the number of the correction difference greater than preset number of corrections maximum value when being consecutively detected the difference B
When, it by the real-time output voltage of current arc-welding machine or exports electric current in real time and is associated with input voltage, re-establish the voltage
Control planning or current control relationship.
As shown from the above technical solution, Study of digital welding machine control system and method provided by the invention, acquisition arc-welding machine exist
Output electric current or output voltage under different voltages, and voltage control planning and current control relationship are established, in this way in welding
When, the input voltage of arc-welding machine is determined according to the output voltage preset value of user setting or output electric current preset value, and supply
To arc-welding machine, the preset value for solving the output voltage of arc-welding machine present in existing arc-welding machine control method and actual value difference are very
Big defect.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the module frame chart for the Study of digital welding machine control system that the embodiment of the present invention one provides.
Fig. 2 is the flow chart of Study of digital welding machine control method provided by Embodiment 2 of the present invention.
Fig. 3 is the flow chart of bearing calibration provided by Embodiment 2 of the present invention.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.It should be noted that unless otherwise indicated, technical term or scientific term used in this application are should be belonging to the present invention
The ordinary meaning that field technical staff is understood.
It should be appreciated that ought use in this specification and in the appended claims, term " includes " and "comprising" instruction
Described feature, entirety, step, operation, the presence of element and/or component, but one or more of the other feature, whole is not precluded
Body, step, operation, the presence or addition of element, component and/or its set.
It is also understood that mesh of the term used in this description of the invention merely for the sake of description specific embodiment
And be not intended to limit the present invention.As description of the invention and it is used in the attached claims, unless on
Other situations are hereafter clearly indicated, otherwise " one " of singular, "one" and "the" are intended to include plural form.
As used in this specification and in the appended claims, term " if " can be according to context quilt
Be construed to " when ... " or " once " or " in response to determination " or " in response to detecting ".Similarly, phrase " if it is determined that " or
" if detecting [described condition or event] " can be interpreted to mean according to context " once it is determined that " or " in response to true
It is fixed " or " once detecting [described condition or event] " or " in response to detecting [described condition or event] ".
Embodiment one:
A kind of Study of digital welding machine control system, referring to Fig. 1, including control cabinet;
The control cabinet and external arc-welding mechatronics, for providing different input voltages to arc-welding machine, and respectively
Record the output voltage and output electric current of arc-welding machine;
The control cabinet is also used to be associated the input voltage of arc-welding machine and corresponding output voltage, and establishes voltage
Control planning;It is also used to be associated the input voltage of arc-welding machine and corresponding output electric current, and establishes current control relationship;
The control cabinet is also used to receive the output voltage preset value or output electric current preset value of the arc-welding machine of user's input,
And it is corresponding defeated from the voltage control planning or current control relationship reading output voltage preset value or output electric current preset value
Enter voltage, answers electric power to the arc-welding machine according to the input voltage output phase.
Specifically, voltage control planning has reflected the relationship of arc-welding machine true input voltage and output voltage, electric current
Control planning has also reflected the true input voltage of arc-welding machine and has exported the relationship of electric current, in this way, when user inputs arc-welding machine
After the output voltage or output electric current that are needed when welding, it can be found out from voltage control planning or current control relationship corresponding
The input voltage is supplied to arc-welding machine by input voltage, and arc-welding machine can export and the output voltage or output electric current phase that need
Same signal.
The Study of digital welding machine control system acquires output electric current or output voltage of the arc-welding machine under different voltages, and builds
Vertical voltage control planning and current control relationship, in this way when welding, according to the output voltage preset value of user setting or
Output electric current preset value determines the input voltage of arc-welding machine, and is supplied to arc-welding machine, solves to deposit in existing arc-welding machine control method
Arc-welding machine output voltage preset value and the very big defect of actual value difference.
Preferably, the voltage control planning includes the list for recording input voltage and corresponding output voltage, either, horizontal
Coordinate is input voltage, and ordinate is the curve graph of output voltage;
The current control relationship includes recording the list of input voltage with corresponding output electric current, and either, abscissa is
Input voltage, ordinate are the curve graph for exporting electric current.
Specifically, voltage control planning and current control relationship can be record arc-welding machine input signal and output signal
List or curve graph.
Preferably, the control cabinet be also used to according to the input voltage output phase answer electric power give the arc-welding machine it
Afterwards, it acquires the real-time output voltage of arc-welding machine and exports electric current in real time, when the real-time output voltage or real-time output electricity of arc-welding machine
When the difference of stream and the voltage preset value or output electric current preset value is greater than preset correction difference, control cabinet is to arc-welding machine
Input voltage is corrected.
Specifically, which in actual use, is also in real time monitored the output signal of arc-welding machine, is welding
In the process, the output voltage or output electric current for constantly acquiring arc-welding machine, to correct its input signal, to realize a closed loop
Control reaches and presets and export automatic corresponding function.When the output signal and voltage preset value or electric current preset value of arc-welding machine
When deviateing too big, in time according to the input voltage of voltage control planning and current control relationship adjustment arc-welding machine, so that arc-welding machine
Output signal be consistent as much as possible with voltage preset value or electric current preset value.
Preferably, the control cabinet is specifically used for:
It is calculate by the following formula the slope A of input voltage in voltage control planning or current control relationship:
A=input voltage/output voltage, either, A=input voltage/output electric current;
It is calculate by the following formula real-time output voltage or in real time output electric current and the voltage preset value or output electric current is default
The difference B of value:
B=| real-time output voltage-output voltage |, either, B=| electric current-output electric current is exported in real time;|
It is calculate by the following formula the correction voltage C of control cabinet:
If A is positive number, C=input voltage+A × B;
If A is negative, C=input voltage-A × B;
Control cabinet answers electric power to the arc-welding machine according to the correction voltage C output phase.
Specifically, which calculates output by the slope of input voltage in voltage control planning or current control relationship
The deviation of signal and voltage preset value or electric current preset value, and according to the input voltage of the deviation adjusting arc-welding machine, method is simple,
And by the way of small successive step, so that deviation is automatically close to 0.
Preferably, the control cabinet is also used to big greater than the number of the correction difference when being consecutively detected the difference B
When preset number of corrections maximum value, by the real-time output voltage of current arc-welding machine or output electric current and input voltage progress in real time
Association, re-establishes the voltage control planning or current control relationship.
Specifically, when arc-welding machine output signal and voltage preset value or electric current preset value read-around ratio devious are excessive
When, the voltage control planning or current control relationship before illustrating are no longer valid, need to update voltage control planning or electricity again
Flow control relationship resurveys arc-welding machine output signal and input signal at this time, according to new output signal and input signal
Corresponding relationship updates voltage control planning or current control relationship, ensure that user can real-time and accurately control the output of arc-welding machine
Signal.
Embodiment two:
A kind of Study of digital welding machine control method, referring to fig. 2, comprising the following steps:
Different input voltages is provided to arc-welding machine, and records the output voltage and output electric current of arc-welding machine respectively;
Input voltage and corresponding output voltage to arc-welding machine are associated, and establish voltage control planning;
Input voltage and corresponding output electric current to arc-welding machine are associated, and establish current control relationship;
The output voltage preset value or output electric current preset value of the arc-welding machine of user's input are received, and is controlled from the voltage
Relationship or current control relationship read output voltage preset value or the corresponding input voltage of output electric current preset value, according to described defeated
Enter the corresponding electric power of voltage output to the arc-welding machine.
Preferably, the voltage control planning includes the list for recording input voltage and corresponding output voltage, either, horizontal
Coordinate is input voltage, and ordinate is the curve graph of output voltage;
The current control relationship includes recording the list of input voltage with corresponding output electric current, and either, abscissa is
Input voltage, ordinate are the curve graph for exporting electric current.
Preferably, this method it is described answered according to the input voltage output phase electric power to the arc-welding machine after, also wrap
It includes:
It acquires the real-time output voltage of arc-welding machine and exports electric current in real time;
When the real-time output voltage of arc-welding machine or real-time output electric current and the voltage preset value or output electric current preset value
Difference be greater than preset correction difference when, the input voltage of arc-welding machine is corrected.
Referring to Fig. 3, the input voltage to arc-welding machine, which is corrected, to be specifically included:
It is calculate by the following formula the slope A of input voltage in voltage control planning or current control relationship:
A=input voltage/output voltage, either, A=input voltage/output electric current;
It is calculate by the following formula real-time output voltage or in real time output electric current and the voltage preset value or output electric current is default
The difference B of value:
B=| real-time output voltage-output voltage |, either, B=| electric current-output electric current is exported in real time;|
It is calculate by the following formula correction voltage C:
If A is positive number, C=input voltage+A × B;
If A is negative, C=input voltage-A × B;
Answer electric power to the arc-welding machine according to the correction voltage C output phase.
Preferably, this method it is described answered according to the input voltage output phase electric power to the arc-welding machine after, also wrap
It includes:
It is greater than the number of the correction difference greater than preset number of corrections maximum value when being consecutively detected the difference B
When, it by the real-time output voltage of current arc-welding machine or exports electric current in real time and is associated with input voltage, re-establish the voltage
Control planning or current control relationship.
This method acquires output electric current or output voltage of the arc-welding machine under different voltages, and establish voltage control planning and
Current control relationship, it is true according to the output voltage preset value of user setting or output electric current preset value in this way when welding
Determine the input voltage of arc-welding machine, and be supplied to arc-welding machine, solves the output of arc-welding machine present in existing arc-welding machine control method
The very big defect of the preset value and actual value difference of voltage.
Method provided by the embodiment of the present invention, to briefly describe, embodiment part does not refer to place, can refer to aforementioned system
Corresponding contents in embodiment of uniting.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover within the scope of the claims and the description of the invention.
Claims (10)
1. a kind of Study of digital welding machine control system, which is characterized in that including control cabinet;
The control cabinet and external arc-welding mechatronics, record for providing different input voltages to arc-welding machine, and respectively
The output voltage and output electric current of arc-welding machine;
The control cabinet is also used to be associated the input voltage of arc-welding machine and corresponding output voltage, and establishes voltage control
Relationship;It is also used to be associated the input voltage of arc-welding machine and corresponding output electric current, and establishes current control relationship;
The control cabinet is also used to receive the output voltage preset value of the arc-welding machine of user's input or exports electric current preset value, and from
The voltage control planning or current control relationship read output voltage preset value or the corresponding input electricity of output electric current preset value
Pressure answers electric power to the arc-welding machine according to the input voltage output phase.
2. Study of digital welding machine control system according to claim 1, which is characterized in that
The voltage control planning includes the list for recording input voltage and corresponding output voltage, and either, abscissa is input
Voltage, ordinate are the curve graph of output voltage;
The current control relationship includes recording the list of input voltage with corresponding output electric current, and either, abscissa is input
Voltage, ordinate are the curve graph for exporting electric current.
3. Study of digital welding machine control system according to claim 1, which is characterized in that
The control cabinet is also used to that electric power is being answered to acquire arc-welding machine to after the arc-welding machine according to the input voltage output phase
Real-time output voltage and in real time output electric current, when arc-welding machine real-time output voltage or in real time output electric current and the voltage it is pre-
If the difference of value or output electric current preset value is greater than preset correction difference, control cabinet carries out school to the input voltage of arc-welding machine
Just.
4. Study of digital welding machine control system according to claim 3, which is characterized in that
The control cabinet is specifically used for:
It is calculate by the following formula the slope A of input voltage in voltage control planning or current control relationship:
A=input voltage/output voltage, either, A=input voltage/output electric current;
It is calculate by the following formula real-time output voltage or in real time output electric current and the voltage preset value or exports electric current preset value
Difference B:
B=| real-time output voltage-output voltage |, either, B=| electric current-output electric current is exported in real time;|
It is calculate by the following formula the correction voltage C of control cabinet:
If A is positive number, C=input voltage+A × B;
If A is negative, C=input voltage-A × B;
Control cabinet answers electric power to the arc-welding machine according to the correction voltage C output phase.
5. Study of digital welding machine control system according to claim 4, which is characterized in that
The control cabinet, which is also used to work as, is consecutively detected number of the difference B greater than the correction difference greater than preset correction
When number maximum value, by the real-time output voltage of current arc-welding machine or exports electric current in real time and be associated with input voltage, built again
Found the voltage control planning or current control relationship.
6. a kind of Study of digital welding machine control method, which comprises the following steps:
Different input voltages is provided to arc-welding machine, and records the output voltage and output electric current of arc-welding machine respectively;
Input voltage and corresponding output voltage to arc-welding machine are associated, and establish voltage control planning;
Input voltage and corresponding output electric current to arc-welding machine are associated, and establish current control relationship;
The output voltage preset value or output electric current preset value of the arc-welding machine of user's input are received, and from the voltage control planning
Or current control relationship reads output voltage preset value or the corresponding input voltage of output electric current preset value, according to the input electricity
Pressure output phase answers electric power to the arc-welding machine.
7. Study of digital welding machine control method according to claim 6, which is characterized in that
The voltage control planning includes the list for recording input voltage and corresponding output voltage, and either, abscissa is input
Voltage, ordinate are the curve graph of output voltage;
The current control relationship includes recording the list of input voltage with corresponding output electric current, and either, abscissa is input
Voltage, ordinate are the curve graph for exporting electric current.
8. Study of digital welding machine control method according to claim 6, which is characterized in that
This method it is described answered according to the input voltage output phase electric power to the arc-welding machine after, further includes:
It acquires the real-time output voltage of arc-welding machine and exports electric current in real time;
When the real-time output voltage of arc-welding machine or real-time output electric current and the voltage preset value or the difference for exporting electric current preset value
When value is greater than preset correction difference, the input voltage of arc-welding machine is corrected.
9. Study of digital welding machine control method according to claim 8, which is characterized in that
The input voltage to arc-welding machine, which is corrected, to be specifically included:
It is calculate by the following formula the slope A of input voltage in voltage control planning or current control relationship:
A=input voltage/output voltage, either, A=input voltage/output electric current;
It is calculate by the following formula real-time output voltage or in real time output electric current and the voltage preset value or exports electric current preset value
Difference B:
B=| real-time output voltage-output voltage |, either, B=| electric current-output electric current is exported in real time;|
It is calculate by the following formula correction voltage C:
If A is positive number, C=input voltage+A × B;
If A is negative, C=input voltage-A × B;
Answer electric power to the arc-welding machine according to the correction voltage C output phase.
10. Study of digital welding machine control method according to claim 9, which is characterized in that
This method it is described answered according to the input voltage output phase electric power to the arc-welding machine after, further includes:
It, will when being consecutively detected number of the difference B greater than the correction difference greater than preset number of corrections maximum value
The current real-time output voltage of arc-welding machine or real-time output electric current are associated with input voltage, are re-established the voltage control and are closed
System or current control relationship.
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