CN107031056A - Welding source control method and device for welding welding machine - Google Patents
Welding source control method and device for welding welding machine Download PDFInfo
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- CN107031056A CN107031056A CN201710304437.8A CN201710304437A CN107031056A CN 107031056 A CN107031056 A CN 107031056A CN 201710304437 A CN201710304437 A CN 201710304437A CN 107031056 A CN107031056 A CN 107031056A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The present invention discloses a kind of welding source control method and device for welding welding machine, and wherein methods described includes：The design temperature determined according to tubing to be processed is obtained in advance；The welding source for connecting welding welding machine is welded with starting welding welding machine to the tubing to be processed；The real-time detection practical welding temperature in welding process is carried out to tubing to be processed；It is used to adjust welding source with so that the actual welding temperature detected is close to design temperature with actual welding temperature generation pulse width modulating signal according to design temperature.The embodiment of the present invention by obtaining a reference settings temperature value in advance, and the actual welding temperature in welding process is gathered in real time, the welding source powered to welding welding machine is adjusted so as to the difference according to the two values in real time, ensure that welding job can realize the accurate adjustment to welding temperature and weld interval and control near reference settings temperature with predetermined weld interval completion.
Description
Technical field
The present invention relates to material welding technology field, more particularly to a kind of welding source control method for welding welding machine
And device.
Background technology
With urban water supply, heating, fuel gas transmission, the development in terms of agricultural drainage and irrigation pipeline network construction, vinyl chloride material
Pipeline is by its lightweight, corrosion-resistant, good insulating, the ability of Resisting fractre is strong, is easy to produce and installs and low cost and other advantages,
Increasingly it is widely applied in fluid media (medium).The quality of quality of connection will directly affect the lasting strong of pipeline between tubing
The integrality of degree and structure.
Conventional welding technique has socket weld, butt welding, electric fusion welding at present.Because electric fusion welding is simple to operate,
Easy to carry, welding speed ratio is very fast, and development quickly has been obtained at present.
Electro-fusion welding welding process is made up of 4 root phases：1. the preparation of preparatory stage, mainly face of weld, especially
It is to dispose the fouls such as oxide skin, greasy dirt and the soil of frosting；2. positioning stage, the two of people's welding are filled by electric-smelting pipe joint
On individual pipeline；3. the stage is welded, pipeline and electric-smelting pipe joint are heated with welding equipment, when controlling to heat according to different materials
Between and heated current or heating voltage, it is ensured that welding quality；4. keep the stage, keep the relative position of electric-smelting pipe joint and pipeline
Put, until they are cooled down completely.
During electro-fusion welding welding job, by the shadow of the disturbing factors such as tube material properties, environment temperature, pressure
Ring, the output voltage of welding and heat time can all change.Site operation personnel is different, and experience is different, and join by fusion
The difference of the regulation sensitivity of machine, it is difficult accurate adjustment welding input voltage and control heat time to cause operating personnel.
The content of the invention
The embodiment of the present invention provides a kind of welding source control method and device for welding welding machine, at least solving
The welding temperature of welding welding machine and the technical problem of weld interval can not be accurately adjusted in the prior art.
In a first aspect, the embodiment of the present invention provides a kind of welding source control method for welding welding machine, including：In advance
Obtain the design temperature determined according to tubing to be processed；The welding source of the welding welding machine is connected to start the welding
Welding machine is welded to the tubing to be processed；Real-time detection practical is welded in welding process is carried out to the tubing to be processed
Temperature；It is used to adjust the welding electricity according to the design temperature and actual welding temperature generation pulse width modulating signal
Source is to cause the actual welding temperature detected close to the design temperature.
Second aspect, the embodiment of the present invention also provides a kind of welding source control device for welding welding machine, including：If
Constant temperature degree determines program module, for obtaining the design temperature determined according to tubing to be processed in advance；
Power on program module, for connecting the welding source of the welding welding machine to start the welding welding machine
The tubing to be processed is welded；
Temperature detection program module, for the real-time detection practical welding in welding process is carried out to the tubing to be processed
Temperature；
Modulated signal generates program module, wide for generating pulse according to the design temperature and the actual welding temperature
Degree modulated signal is used to adjust the welding source with so that the actual welding temperature detected is leaned on to the design temperature
Closely.
The third aspect, the embodiment of the present invention provides a kind of non-volatile computer readable storage medium storing program for executing, the storage medium
In be stored with one or more programs including execute instruction, the execute instruction (can be included but is not limited to by electronic equipment
Computer, server, or network equipment etc.) read and perform, it is used for join by fusion for performing any of the above-described of the present invention
The welding source control method of machine.
Fourth aspect is there is provided a kind of electronic equipment, and it includes：At least one processor, and with described at least one
The memory of device communication connection is managed, wherein, the memory storage has can be by the instruction of at least one computing device, institute
Instruction is stated by least one described computing device, so that at least one described processor is able to carry out any of the above-described of the present invention
Welding source control method for welding welding machine.
5th aspect, the embodiment of the present invention also provides a kind of computer program product, and the computer program product includes
The computer program on non-volatile computer readable storage medium storing program for executing is stored in, the computer program includes programmed instruction, when
When described program instruction is computer-executed, the computer is performed any of the above-described is used for the welding source control of welding welding machine
Method processed.
The beneficial effect of the embodiment of the present invention is：By obtaining a reference settings temperature value in advance, and gather in real time
Actual welding temperature in welding process, adjusts what is powered to welding welding machine in real time so as to the difference according to the two values
Welding source, to cause the actual welding temperature detected close to reference settings temperature, it is ensured that welding job can be in reference
Design temperature is nearby completed with predetermined weld interval, realizes the accurate adjustment to welding temperature and weld interval and control
System.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, being used required in being described below to embodiment
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Flow charts of the Fig. 1 for the present invention for the embodiment of welding source control method one of welding welding machine；
Fig. 2 is a kind of circuit catenation principle figure of embodiment of temperature sensing circuit；
Flow charts of the Fig. 3 for the present invention for another embodiment of the welding source control method of welding welding machine；
Fig. 4 is an embodiment of the PID regulator in the welding source control method for welding welding machine of the present invention
Theory diagram；
Fig. 5 for the present invention the welding source control method for welding welding machine in HPWM power circuits an embodiment
Schematic diagram；
Fig. 6 is real for the drive circuit one of the IGBT switches in the welding source control method for welding welding machine of the present invention
Apply the schematic diagram of example；
Fig. 7 is the structural representation of an embodiment of the welding source control device for welding welding machine of the present invention；
Fig. 8 is the modulated signal generation program module one in the welding source control device for welding welding machine of the present invention
The structural representation of 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 the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
The present invention can be described in the general context of computer executable instructions, such as program
Module.Usually, program module includes performing particular task or realizes routine, program, object, the member of particular abstract data type
Part, data structure etc..The present invention can also be put into practice in a distributed computing environment, in these DCEs, by
Remote processing devices connected by communication network perform task.In a distributed computing environment, program module can be with
Positioned at including in the local and remote computer-readable storage medium including storage device.
In the present invention, " module ", " device ", " system " etc. refer to the related entities applied to computer, such as hardware, hard
Combination, software or executory software of part and software etc..In detail, for example, element can with but be not limited to run on place
The process of reason device, processor, object, executable element, execution thread, program and/or computer.Further, server is run on
On application program or shell script, server can be element.One or more elements can execution process and/or line
Cheng Zhong, and element can be localized and/or be distributed between two or multiple stage computers on one computer, it is possible to by
Various computer-readable medium operations.Element can also be according to the signal with one or more packets, for example, from one
Interacted with another element in local system, distributed system, and/or the network in internet is handed over by signal and other systems
The signal of mutual data is communicated by locally and/or remotely process.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising", not only including those key elements, and
And also including other key elements being not expressly set out, or also include for this process, method, article or equipment institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence " including ... ", it is not excluded that including it is described will
Also there is other identical element in process, method, article or the equipment of element.
As shown in figure 1, the welding source control method for welding welding machine of one embodiment of the invention, including：
S10, the design temperature that acquisition is determined according to tubing to be processed in advance；
S20, connect the welding source of the welding welding machine to start the welding welding machine to the tubing to be processed
Welded；
S30, the real-time detection practical welding temperature in welding process is carried out to the tubing to be processed；
S40, according to the design temperature and the actual welding temperature generation pulse width modulating signal be used for adjust institute
Welding source is stated with so that the actual welding temperature detected is close to the design temperature.
The beneficial effect of the present embodiment is：By obtaining a reference settings temperature value, and collection welding in real time in advance
During actual welding temperature, adjust the welding powered to welding welding machine in real time so as to the difference according to the two values
Power supply, to cause the actual welding temperature detected close to reference settings temperature, it is ensured that welding job can be in reference settings
Temperature is nearby completed with predetermined weld interval, realizes the accurate adjustment to welding temperature and weld interval and control.
The method of above-described embodiment can be performed by one or more processor (for example, 51 single-chip microcomputers).Wherein walk
Rapid S10, can be that staff writes design temperature into processor beforehand through keyboard circuit, design temperature here is work
Make personnel according to the characteristic of tubing to be processed and to determine；Or can be staff beforehand through keyboard circuit to place
The name information or characteristic information of tubing to be processed are inputted in reason device, then by processor automatically according to the correspondence prestored
Corresponding design temperature is determined in the design temperature list of a variety of different tubing.
Step S20 is performed when receiving the startup welding job sent to processor the instruction of staff.Work people
Member can be by the start button that is connected with processor or by the sound identification module being connected with processor or by distant
Device is controlled to realize the transmission of instruction.Afterwards by processor controls the welding source being attached thereto to weld pipe fitting to be processed
Connect.
Processor passes through the actual weldering of the current welding gathered with examinations external temperature detection circuit in step S30
Jointing temp value, and store to buffer area for the comparison in step S40 with design temperature.
As shown in Fig. 2 a kind of circuit catenation principle figure of embodiment for temperature sensing circuit, employs thermocouple conversion
Device MAX6675 chips, show the annexation of thermocouple, thermocouple converter part and 51 single-chip microcomputers.Welding welding machine
Temperature controlling range is 130-220 DEG C, and sensor selects K-type thermocouple, and the measurement of thermocouple is converted using special thermocouple
Device MAX6675 chips, 12 bit binary number amounts are converted to by measured temperature.
According to the difference between the design temperature and the actual welding temperature in step S40, to adjust welding source.
Specifically, when actual welding temperature is less than design temperature, can be improved by the magnitude of voltage for being exported welding source or
The mode for the dutycycle for exporting DC voltage is improved to lift welding temperature；, can when actual welding temperature is more than design temperature
To reduce welding temperature by way of the magnitude of voltage for exporting welding source reduces or reduces the dutycycle of DC voltage.
As shown in figure 3, in certain embodiments, it is described that institute is adjusted according to the design temperature and the actual welding temperature
State welding source with so that the actual welding temperature detected to the design temperature it is close including：
S41, according to the design temperature with the actual welding temperature determine that welding temperature deviation e and welding temperature are inclined
Rate ec；
S42, the ratio for determining according at least to the welding temperature deviation and the welding temperature deviation ratio PID regulator
Coefficient, integral coefficient and differential coefficient；
S43, according to the proportionality coefficient, integral coefficient and differential coefficient generate pulse width modulating signal be used for described
Welding source is adjusted with so that the actual welding temperature detected is close to the design temperature.
Welding temperature deviation e is determined by design temperature and actual welding temperature in step S41 in the present embodiment, led to
The multiple welding temperature deviation e for crossing the actual welding temperature determination of multiple moment collections determine welding temperature deviation ratio ec.
Wherein, represented by welding temperature deviation e it is actual welding temperature and the magnitude relationship of design temperature, welding temperature deviation ratio
What is represented is the variation tendency of difference between actual welding temperature and design temperature.
Determined in step S42 by the welding temperature deviation and welding temperature deviation ratio of determination for PID regulator
Proportionality coefficient kp, integral coefficient kt and the differential coefficient kd of program.Wherein, proportionality coefficient kp effect is to speed up the corresponding of system
Speed, improves the degree of regulation of system, kp values are bigger, and system response time is faster, and the degree of regulation of system is higher, but is also easy to produce
Overshoot, results even in system unstable；Kp is smaller, then can reduce the degree of regulation of system, makes response speed slow, so as to prolong
Long regulating time, makes static system, dynamic characteristic degenerate.Integral coefficient kt effect is the steady-state error of elimination system, value
Bigger, the static error of system eliminates faster, but value can produce integration saturated phenomenon the excessive initial stage in response process, so that
Cause the larger overshoot of response process, if too small will make systematic static error be difficult to eliminate, so as to influence the degree of regulation of system.
Differential coefficient kd effect is the dynamic property of improvement system, mainly suppresses change of the deviation to powder box direction in response process
Change, change of error is forecast in advance, but value is excessive response process is braked in advance, so that extend regulating time,
And the antijamming capability of system can be reduced.
PID regulator program is called to be given birth to according to the proportionality coefficient kp, integral coefficient kt and differential coefficient kd in step S43
Into pulse width modulating signal.
As shown in figure 4, the PID regulator in the present embodiment uses parameter self-tuning fuzzy PID controller (Proportion
Integration Differentiation, proportional-integral derivative controller), it includes：PID regulator unit 1, with institute
State the fuzzy reasoning unit 2 of the control end connection of PID regulator unit 1, fuzzy reasoning unit export ratio coefficient k p, integration system
Number ki and differential coefficient kd is to PID regulator unit, the differentiator 3 being connected with the first input end of the PID regulator unit 1
(de/dt) adder 4, being connected with the second input of the PID regulator unit 1, the positive input of the adder 4
Set temperature value is inputted, the reverse input end of adder 4 inputs the real-time temperature values gathered by temperature sensor 5, and the PID is adjusted
The output end of section device unit 1 is connected with the control end of HPWM power circuits 6, and the output end of the HPWM power circuits 6 is used to connect
Connect welding welding machine 7.
H bridge PWM DC-DC powers, PWM (pulse-width modulation, pulse width are used in the present embodiment
Modulation) an advantage be from processor to controlled system signal be all digital form, without carrying out digital-to-analogue conversion.Allow signal
Influence of noise can be minimized by remaining digital form.Noise is only strong to being enough logic 1 changing into logical zero or will patrol
Volume 0 when changing into logic 1, also could produce influence to data signal.It is PWM relative to simulation to the enhancing of noise resistivity
Another advantage of control, and this is also in the main cause for being sometimes used to PWM communicate.Turned to from analog signal
PWM can greatly extend communication distance.In receiving terminal, modulation high frequency square wave can be filtered out simultaneously by appropriate RC or LC networks
It is analog form by signals revivification, in a word, both economy, saving space, noiseproof feature are strong by PWM.
In certain embodiments, it is described to be determined according at least to the welding temperature deviation and the welding temperature deviation ratio
Proportionality coefficient kp, integral coefficient kt and the differential coefficient kd of PID regulator be：According to the welding temperature deviation and the weldering
Jointing temp deviation ratio and fuzzy reasoning table determine the proportionality coefficient kp, integral coefficient kt and differential coefficient kd of PID regulator.
Fuzzy reasoning table in the present embodiment is pre-established, and specific method for building up is as follows：
First, the word set of selection description input/output variable.
Fuzzy control rule table is now one group of fuzzy condition statement.The one of input/output variable state is described in conditional statement
The set of a little vocabulary (such as " honest " " negative small "), is referred to as the word set of these variables.It is general to select " large, medium and small " three vocabulary
Input, the state of output variable of fuzzy controller are described.Because the behavior of people in the judgement of positive and negative both direction is substantially
Symmetrically.Along with positive and negative both direction and consider the state that variable is zero by large, medium and small.Seven vocabulary are had, i.e.,：
In negative big, negative, it is negative it is small, zero, it is just small, center, honest
Receiving a letter abbreviations with English alphabet is
{NB、NM、NS、O、PS、PM、PB}
Wherein, N-Negative, P-Positive, B-Big, M-Medium, S-Small, O-Zero.
Secondly, the control rule table of fuzzy controller is set up.
According to pid parameter proportionality coefficient kp, the influence of integral coefficient kt and differential coefficient kd to system output characteristics, it can obtain
Go out in different welding temperature deviation e and welding temperature deviation ratio ec, parameter self-tuning principle：
1) when e is very big, no matter error change trend, the output for being all considered as controller should be by maximum (or minimum)
Output, to reach rapid alignment error so that Error Absolute Value is reduced with maximal rate, while in order to prevent from integrating saturation, this
When, larger kp, less kd, kt should be taken to take zero.
2) as e*ec ＞ 0, specification error now, if error is larger, can be examined towards the change of Error Absolute Value augment direction
Consider and implement stronger control action by controller, missed with reaching torsional error absolute value towards reduction direction change, and reducing rapidly
Poor absolute value；Larger kp is now taken, kd can not be too big, takes less kt values, if Error Absolute Value is smaller, controller implements one
As control action, as long as the variation tendency of torsional error, make its towards Error Absolute Value reduce direction change.
3) as e*ec ＜ 0, or during e=0, the absolute value of specification error or has reached towards the direction change of reduction
Poised state, now, can take holding controller output constant.
4) work as e*ec=0, when e is not equal to zero, show that the curve of system is parallel or consistent with theoretical curve, to have system
There is good steady-state behaviour, larger kp and kt values should be taken, while avoiding setting value from oscillating around, and consider the anti-interference of system
Performance, it is appropriate to choose kd values, if：
Kp ', kt ', kd ' are the classical PID parameter of system in formula (1), are typically determined with Z-N rules.
According to the setting principle and expertise of pid parameter, using if-then forms, Δ kp, Δ kt, Δ kd can be obtained
Tuning rule is as shown in table 1 below：
Table 1-1, Δ kp fuzzy control table
Table 1-2, Δ ki fuzzy control table
Table 1-2, Δ kd fuzzy control table
In certain embodiments, the welding source uses the H bridge PWM direct currents that are made up of multiple IGBT switching devices-straight
Flow power supply；The IGBT switching devices are configured to, when the IGBT switching devices are turned off, the grid of the IGBT switching devices
It is negative voltage between emitter stage.
As shown in figure 5, H bridge PWM power circuits include：First switch IGBT1, second switch IGBT2, the 3rd switch
IGBT3, the 4th switch IGBT4, wherein, the switches of the first switch IGBT1 and the 3rd IGBT3 grid g connections first drive
Signal PWM1, the second switch IGBT2 and the 4th switch IGBT4 grid g the second drive signals of connection PWM2, described second
Switch the switches of IGBT2 and the 4th IGBT4 emitter e connection power cathode, the colelctor electrode c connections of the first switch IGBT1
Positive source, the emitter e of the first switch IGBT1 is connected with the colelctor electrode c of the second switch IGBT2, and the described 3rd
The emitter e for switching IGBT3 is connected with the described 4th switch IGBT4 colelctor electrode c.
H bridge PWM DC-DC powers are used in the present embodiment, are modulated using bipolar system, using IGBT as main switching device.
The devices such as inverter circuit, intermediate conversion transformer can be reduced using double DC voltage controls first, so that simplify circuit design,
Reduce cost；In addition, using IGBT as core switching device, there is the device high switching frequency, high defeated people's impedance, voltage to drive
It is dynamic, without second breakdown and the advantages of wider safety operation area, improve safety and unfailing performance.
In certain embodiments, the switches of the first switch IGBT1 and the 3rd IGBT3 grid connects the first drive signal
For：The switches of the first switch IGBT1 and the 3rd IGBT3 grid is connected to the first drive signal by the first drive circuit；
And/or the switches of the second switch IGBT2 and the 4th IGBT4 grid the second drive signal of connection is：The second switch
The switches of IGBT2 and the 4th IGBT4 grid is connected to the second drive signal by the second drive circuit.
In the present embodiment, the conducting for the pwm signal control IGBT switches that controller (for example, 51 single-chip microcomputers) is produced and pass
It is disconnected, but the voltage and current of controller output is smaller, is unsatisfactory for driving IGBT minimum requirement, therefore devise IGBT switches
Drive circuit.
In certain embodiments, first drive circuit uses photo-coupler, the input of the photo-coupler and
One drive signal is connected, and the output end of the photo-coupler is connected to the switches of the first switch IGBT1 and the 4th IGBT4 grid
Pole.
Accordingly, in certain embodiments, second drive circuit also use photo-coupler, the photo-coupler it is defeated
Enter end to be connected with the second drive signal, the output end of the photo-coupler is connected to the second switch IGBT2 and the 3rd switch
IGBT3 grid.
In the above-described embodiments, the model TLP250 of the photo-coupler.
In certain embodiments, the earth terminal of the photo-coupler passes through voltage-stabiliser tube and the first switch IGBT1 and the
Four switch IGBT4 emitter stage connection.Accordingly, in certain embodiments, the earth terminal of the photo-coupler passes through voltage-stabiliser tube
It is connected with the switches of the second switch IGBT2 and the 3rd IGBT3 emitter stage.In the above-described embodiments, the type of the voltage-stabiliser tube
Number be 2CW7C.
As shown in fig. 6, the drive circuit of IGBT switches includes model TLP250 photo-coupler in certain embodiments,
Resistance R1-R2, electric capacity C1-C2, model 2CW7C voltage-stabiliser tube.Single-chip microcomputer sends pwm signal, input to light from PWM1 pins
Coupler.Then, photo-coupler TLP250 exports IGBT drive signal from G1 and E1, and G1 and E1 are coupled with IGBT grid
And emitter stage.
In order that IGBT switches can accelerate turn-off speed, make system operation relatively reliable, when IGBT is turned off, make grid
It is negative voltage between emitter stage.In circuit, using 6V voltage-stabiliser tube 2CW7C, supply voltage is 15V.When front end, input is led
When logical, 9V voltages, driving IGBT conductings are produced between grid and emitter stage；When front end, which is inputted, to be turned off, grid and emitter stage it
Between produce negative 6V voltage, accelerate IGBT shut-off, it is ensured that the reliability service of system.
It should be noted that for foregoing each method embodiment, in order to be briefly described, therefore it is all expressed as a series of
Action merge, but those skilled in the art should know, the present invention is not limited by described sequence of movement because
According to the present invention, some steps can be carried out sequentially or simultaneously using other.Secondly, those skilled in the art should also know
Know, embodiment described in this description belongs to preferred embodiment, involved action and module is not necessarily of the invention
It is necessary.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and does not have the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
As shown in fig. 7, the embodiment of the present invention provides a kind of welding source control device 700 for welding welding machine, including：
Design temperature determines program module 710, for obtaining the design temperature determined according to tubing to be processed in advance；
Power on program module 720, for connecting the welding source of the welding welding machine to start the welding
Welding machine is welded to the tubing to be processed；
Temperature detection program module 730, for the real-time detection practical in welding process is carried out to the tubing to be processed
Welding temperature；
Modulated signal generates program module 740, for generating arteries and veins according to the design temperature and the actual welding temperature
Rushing bandwidth modulation signals is used to adjust the welding source with so that the actual welding temperature detected is warm to the setting
Degree is close.
As shown in figure 8, in some embodiments of the present invention, the modulated signal generation program module 740 includes：
Deviation calculates program unit 741, for determining welding temperature according to the design temperature and the actual welding temperature
Spend deviation and welding temperature deviation ratio；
Fuzzy reasoning program unit 742, for according at least to the welding temperature deviation and the welding temperature deviation
Rate determines the proportionality coefficient, integral coefficient and differential coefficient of PID regulator；
PID regulator program unit 743, for generating pulse according to the proportionality coefficient, integral coefficient and differential coefficient
Bandwidth modulation signals are used to be adjusted the welding source with so that the actual welding temperature detected is set to described
Constant temperature degree is close.
In certain embodiments, the fuzzy reasoning program unit 742 is used for according to the welding temperature deviation and institute
State welding temperature deviation ratio and fuzzy reasoning table determines the proportionality coefficient, integral coefficient and differential coefficient of PID regulator.
In certain embodiments, the welding source uses the H bridge PWM direct currents that are made up of multiple IGBT switching devices-straight
Flow power supply；The IGBT switching devices are configured to, when the IGBT switching devices are turned off, the grid of the IGBT switching devices
It is negative voltage between emitter stage.
The welding source control device for welding welding machine of the embodiments of the present invention can be used for performing present invention implementation
The welding source control method for welding welding machine of example, and reach accordingly the embodiments of the present invention for welding welding machine
The technique effect that is reached of welding source control method, repeat no more here.
Correlation function mould can be realized by hardware processor (hardware processor) in the embodiment of the present invention
Block.
The present invention also provide be stored with a kind of computer-readable recording medium, the storage medium it is one or more including
The program of execute instruction, the execute instruction can be read and be performed by electronic equipment, for performing any of the above of the present invention
The welding source control method for welding welding machine described in embodiment.
In addition, the embodiment of the present invention also provides a kind of electronic equipment, it includes：At least one processor, and with it is described
The memory of at least one processor communication connection, wherein, the memory storage, which has, to be held by least one described processor
Capable instruction, the instruction is by least one described computing device, so that at least one described processor is able to carry out this hair
The welding source control method for welding welding machine described in bright any of the above embodiment.
Device embodiment described above is only schematical, wherein the unit illustrated as separating component can
To be or may not be physically separate, the part shown as unit can be or may not be physics list
Member, you can with positioned at a place, or can also be distributed on multiple NEs.It can be selected according to the actual needs
In some or all of module realize the purpose of this embodiment scheme.
Through the above description of the embodiments, those skilled in the art can be understood that each embodiment can
Realized by the mode of software plus general hardware platform, naturally it is also possible to pass through hardware.Understood based on such, above-mentioned technology
The part that scheme substantially contributes to correlation technique in other words can be embodied in the form of software product, the computer
Software product can be stored in a computer-readable storage medium, and such as ROM/RAM, magnetic disc, CD, including some instructions are used to
So that a computer equipment (can be personal computer, server, or network equipment etc.) perform each embodiment or
Method described in some parts of embodiment.
Finally it should be noted that：Above example is only to the technical scheme for illustrating the application, rather than its limitations；Although
The application is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from each embodiment technical scheme of the application spirit and
Scope.
Claims (10)
1. a kind of welding source control method for welding welding machine, including：
The design temperature determined according to tubing to be processed is obtained in advance；
Connect the welding source of the welding welding machine and the tubing to be processed is welded with starting the welding welding machine；
The real-time detection practical welding temperature in welding process is carried out to the tubing to be processed；
It is used to adjust the welding electricity according to the design temperature and actual welding temperature generation pulse width modulating signal
Source is to cause the actual welding temperature detected close to the design temperature.
2. according to the method described in claim 1, wherein, it is described to be adjusted according to the design temperature and the actual welding temperature
The welding source with cause the actual welding temperature that detects to the design temperature it is close including：
Welding temperature deviation and welding temperature deviation ratio are determined according to the design temperature and the actual welding temperature；
The proportionality coefficient of PID regulator, product are determined according at least to the welding temperature deviation and the welding temperature deviation ratio
Divide coefficient and differential coefficient；
Generating pulse width modulating signal according to the proportionality coefficient, integral coefficient and differential coefficient is used for the welding source
It is adjusted with so that the actual welding temperature detected is close to the design temperature.
3. method according to claim 2, wherein, it is described according at least to the welding temperature deviation and the welding temperature
Degree deviation ratio determines that the proportionality coefficient, integral coefficient and differential coefficient of PID regulator are：According to the welding temperature deviation and
The welding temperature deviation ratio and fuzzy reasoning table determine the proportionality coefficient, integral coefficient and differential coefficient of PID regulator.
4. according to the method described in claim 1, wherein, the welding source uses the H that is made up of multiple IGBT switching devices
Bridge PWM DC-DC powers；The IGBT switching devices are configured to, and when the IGBT switching devices are turned off, the IGBT is opened
It is negative voltage between the grid and emitter stage that close device.
5. a kind of welding source control device for welding welding machine, including：
Design temperature determines program module, for obtaining the design temperature determined according to tubing to be processed in advance；
Power on program module, for connecting the welding source of the welding welding machine to start the welding welding machine to institute
Tubing to be processed is stated to be welded；
Temperature detection program module, for the real-time detection practical welding temperature in welding process is carried out to the tubing to be processed
Degree；
Modulated signal generates program module, for being adjusted according to the design temperature and actual welding temperature generation pulse width
Signal processed is used to adjust the welding source with so that the actual welding temperature detected is close to the design temperature.
6. device according to claim 5, wherein, the power supply adjustment programme module includes：
Deviation calculates program unit, for determining welding temperature deviation according to the design temperature and the actual welding temperature
With welding temperature deviation ratio；
Fuzzy reasoning program unit, for according at least to the welding temperature deviation and welding temperature deviation ratio determination
Proportionality coefficient, integral coefficient and the differential coefficient of PID regulator；
PID regulator program unit, for generating pulse width modulation according to the proportionality coefficient, integral coefficient and differential coefficient
Signal is used to be adjusted the welding source with so that the actual welding temperature detected is leaned on to the design temperature
Closely.
7. device according to claim 6, wherein, the fuzzy reasoning program unit is used for inclined according to the welding temperature
Difference and the welding temperature deviation ratio and fuzzy reasoning table determine the proportionality coefficient, integral coefficient and differential of PID regulator
Coefficient.
8. device according to claim 5, wherein, the welding source uses the H being made up of multiple IGBT switching devices
Bridge PWM DC-DC powers；The IGBT switching devices are configured to, and when the IGBT switching devices are turned off, the IGBT is opened
It is negative voltage between the grid and emitter stage that close device.
9. be stored with one or more journeys including execute instruction in a kind of computer-readable recording medium, the storage medium
Sequence, the execute instruction can be read and be performed by electronic equipment, and the use any one of 1-4 is required for perform claim
In the welding source control method of welding welding machine.
10. a kind of electronic equipment, it includes：
At least one processor, and
The memory being connected with least one described processor communication, wherein, the memory storage has can be by described at least one
The instruction of individual computing device, the instruction is by least one described computing device, so that at least one described processor energy
Enough perform claims require the welding source control method for welding welding machine any one of 1-4.
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Application publication date: 20170811 |