CN110170737A - A kind of vibration friction welding method, system and relevant apparatus - Google Patents
A kind of vibration friction welding method, system and relevant apparatus Download PDFInfo
- Publication number
- CN110170737A CN110170737A CN201910463608.0A CN201910463608A CN110170737A CN 110170737 A CN110170737 A CN 110170737A CN 201910463608 A CN201910463608 A CN 201910463608A CN 110170737 A CN110170737 A CN 110170737A
- Authority
- CN
- China
- Prior art keywords
- phase
- duty ratio
- stage
- friction welding
- driving duty
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
- B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
- B23K20/123—Controlling or monitoring the welding process
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Mechanical Engineering (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Inverter Devices (AREA)
Abstract
A kind of vibration friction welding method provided herein is applied to three-phase inverter, comprising: according to the demand of input, determines the Oscillation Amplitude of vibration friction welding apparatus；The vibration frequency of vibration friction welding apparatus is determined according to Oscillation Amplitude, and using vibration frequency as the electric voltage frequency of the second phase of three-phase inverter；Inverter carrier cycle is determined using electric voltage frequency, and is automatically adjusted operation in inverter carrier cycle according to preset driving duty ratio, carries out workpiece welding to realize that left vibrator coil and right vibrator coil have operating current in turn.This method automatically adjusts operation in inverter carrier cycle according to driving duty ratio, workpiece welding is carried out to realize that left vibrator coil and right vibrator coil have operating current in turn, it can be improved current utilization rate, and then avoid needing to amplify type selecting in actual use.The application also provides a kind of vibration friction welding (FW) system, three-phase inverter and computer readable storage medium, all has above-mentioned beneficial effect.
Description
Technical field
This application involves field of power electronics, in particular to a kind of vibration friction welding method, system, three-phase inverter and meter
Calculation machine readable storage medium storing program for executing.
Background technique
Friction welding (FW) is vibrated, is referred to using work piece interface relative motion, is heat source by the heat that friction generates, makes workpiece
The method for generating plastic deformation under pressure and being welded.
Existing conventional method is that three-phase symmetric voltage namely U, V, W three-phase output voltage are exported using three-phase inverter, defeated
The frequency of voltage uses the resonance frequency of equipment out, by adjusting output voltage amplitude, i.e., controllable vibration friction welding apparatus vibration
Dynamic amplitude guarantees the normal weld of workpiece.But the left vibrator coil and right vibrator coil of program vibration friction welding (FW) are deposited simultaneously
There is electric current, generate opposite effect power, wherein lesser active force can balance out a part of biggish active force, electric current is utilized
Rate is low, causes to need to amplify type selecting in actual use, while will increase module heating amount in three-phase inverter.
Therefore, current utilization rate how is improved, and then avoids needing to amplify type selecting in actual use, reduces three-phase
The technical issues of module heating amount is those skilled in the art's urgent need to resolve in inverter.
Summary of the invention
The purpose of the application is to provide a kind of vibration friction welding method, system, three-phase inverter and computer-readable storage
Medium can be improved current utilization rate, and then avoid needing to amplify type selecting in actual use, reduce in three-phase inverter
Module heating amount.
In order to solve the above technical problems, the application provides a kind of vibration friction welding method, it is applied to three-phase inverter, packet
It includes:
According to the demand of input, the Oscillation Amplitude of vibration friction welding apparatus is determined；
According to the Oscillation Amplitude determine it is described vibration friction welding apparatus vibration frequency, and using the vibration frequency as
The electric voltage frequency of second phase of the three-phase inverter；
Inverter carrier cycle is determined using the electric voltage frequency, and according to preset in the inverter carrier cycle
Driving duty ratio automatically adjusts operation, to realize the left vibrator coil and right vibrator coil wheel for vibrating friction welding apparatus
Stream has operating current and carries out workpiece welding.
Preferably, described to determine inverter carrier cycle using the electric voltage frequency, and in the inverter carrier cycle
It is interior to be automatically adjusted operation according to preset driving duty ratio, with realize the vibration friction welding apparatus left vibrator coil and
Right vibrator coil has operating current in turn and carries out workpiece welding, comprising:
The inverter carrier cycle is determined using the electric voltage frequency, and the inverter carrier cycle is divided into
One stage, second stage, phase III and fourth stage；Wherein, the duration of the first stage and the phase III are equal,
The duration of the second stage and the fourth stage is equal；
The respectively described first stage, the second stage, the phase III and fourth stage configuration are corresponding
First driving duty ratio, the second driving duty ratio, third driving duty when the 4th drive duty ratio；
Successively in the first stage, the second stage, the phase III and the fourth stage, according to correspondence
The first driving duty ratio, the second driving duty ratio, when the 4th driving duty ratio carries out the automatic tune to third driving duty
Section operation carries out workpiece welding to realize that the left vibrator coil and the right vibrator coil have the operating current in turn.
Preferably, described successively in the first stage, the second stage, the phase III and the fourth stage
Interior, according to corresponding first driving duty ratio, the second driving duty ratio, third driving duty, when the 4th driving duty ratio is carried out
The automatic adjustment operation is carried out with realizing that the left vibrator coil and the right vibrator coil have the operating current in turn
Workpiece welding, comprising:
Within the first stage, the first phase, second phase and the corresponding first phase driving of third is respectively configured and accounts for
When third phase drives duty ratio for sky ratio, two phase displacement duty, and drives duty ratio, second phase to drive first phase
When the third phase drives duty ratio as the first driving duty ratio to dynamic duty；
The automatic adjustment operation is carried out according to the first driving duty ratio.
It is preferably, described that the automatic adjustment operation is carried out according to the first driving duty ratio, comprising:
Duty ratio is driven according to first phase, automatically adjusts bridge module and first in first corresponding first phase
Bridge module under phase；
According to the two phase displacement duty ratio, bridge module and second in second corresponding second phase is automatically adjusted
Bridge module under phase；
Duty ratio is driven according to the third phase, automatically adjusts bridge module and third on the corresponding third phase of the third
Bridge module under phase.
Preferably, the vibration friction welding method further include:
The Oscillation Amplitude of the vibration friction welding apparatus is adjusted using PID.
The application also provides a kind of vibration friction welding (FW) system, is applied to three-phase inverter, comprising:
Oscillation Amplitude determining module determines the Oscillation Amplitude of vibration friction welding apparatus for the demand according to input；
Electric voltage frequency determining module, for determining the vibration frequency of the vibration friction welding apparatus according to the Oscillation Amplitude
Rate, and using the vibration frequency as the electric voltage frequency of the second phase of the three-phase inverter；
Self-adjustment module for determining inverter carrier cycle using the electric voltage frequency, and is carried in the inverter
It is automatically adjusted operation in wave period according to preset driving duty ratio, to realize the left vibration for vibrating friction welding apparatus
Coil and right vibrator coil have operating current in turn and carry out workpiece welding.
Preferably, the self-adjustment module, comprising:
Divided stages submodule, for determining the inverter carrier cycle using the electric voltage frequency, and will be described inverse
Become device carrier cycle and is divided into first stage, second stage, phase III and fourth stage；Wherein, the first stage and institute
The duration for stating the phase III is equal, and the duration of the second stage and the fourth stage is equal；
It drives duty ratio to configure submodule, is used for the respectively described first stage, the second stage, the phase III
And the fourth stage configuration corresponding first drives duty ratio, the second driving duty ratio, third driving duty when 4 wheel driven
Dynamic duty ratio；
Submodule is automatically adjusted, for successively in the first stage, the second stage, phase III and described
In fourth stage, according to corresponding first driving duty ratio, the second driving duty ratio, third driving duty, when the 4th driving is accounted for
It is empty to be operated than carrying out the automatic adjustment, to realize that the left vibrator coil and the right vibrator coil have the work in turn
Electric current carries out workpiece welding.
Preferably, the automatic adjustment submodule, comprising:
Duty ratio configuration unit is driven, within the first stage, the first phase, second phase and the is respectively configured
When third phase drives duty ratio for three corresponding first phases driving duty ratios, two phase displacement duty, and by first phase
Driving duty ratio, the two phase displacement duty, when the third phase drives duty ratio as the first driving duty ratio；
Automatic adjustment unit is operated for carrying out the automatic adjustment according to the first driving duty ratio.
The application also provides a kind of three-phase inverter, comprising:
Memory and processor；Wherein, the memory is for storing computer program, and the processor is for executing institute
The step of vibration friction welding method described above is realized when stating computer program.
The application also provides a kind of computer readable storage medium, and the computer-readable recording medium storage has computer
The step of program, the computer program realizes vibration friction welding method described above when being executed by processor.
A kind of vibration friction welding method provided herein is applied to three-phase inverter, comprising: according to the need of input
It asks, determines the Oscillation Amplitude of vibration friction welding apparatus；The vibration of the vibration friction welding apparatus is determined according to the Oscillation Amplitude
Frequency, and using the vibration frequency as the electric voltage frequency of the second phase of the three-phase inverter；It is true using the electric voltage frequency
Determine inverter carrier cycle, and is automatically adjusted behaviour in the inverter carrier cycle according to preset driving duty ratio
Make, to realize that left vibrator coil and the right vibrator coil of the vibration friction welding apparatus have operating current in turn and carry out workpiece weldering
It connects.
Three-phase inverter carries out in the inverter carrier cycle according to preset driving duty ratio automatic in this method
Operation is adjusted, carries out workpiece welding to realize that the left vibrator coil and the right vibrator coil have operating current in turn.By
There is operating current in turn in left vibrator coil and right vibrator coil, therefore opposite effect power will not be generated, phase is also just not present
Occurs the case where active force counteracting in the technology of pass, therefore this method can be improved current utilization rate, and then avoid actually using
It needs to amplify type selecting in journey, reduces module heating amount in three-phase inverter.The application also provides a kind of vibration friction welding (FW) system, three
Phase inverter and computer readable storage medium all have above-mentioned beneficial effect, and details are not described herein.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of flow chart for vibrating friction welding method provided by the embodiment of the present application；
Fig. 2 is a kind of structural schematic diagram of three-phase inverter provided by the embodiment of the present application；
Fig. 3 is a kind of structural schematic diagram for vibrating friction welding apparatus provided by the embodiment of the present application；
Fig. 4 is a kind of U, V, W three-phase bridge arm PWM drive signal schematic diagram provided by the embodiment of the present application；
Fig. 5 is a kind of Oscillation Amplitude control schematic diagram provided by the embodiment of the present application；
Fig. 6 is a kind of structural block diagram for vibrating friction welding (FW) system provided by the embodiment of the present application.
Specific embodiment
The core of the application is to provide a kind of vibration friction welding method, can be improved current utilization rate, and then avoid in reality
It needs to amplify type selecting in the use process of border, reduces module heating amount in three-phase inverter.Another core of the application is to provide one
Kind vibration friction welding (FW) system, three-phase inverter and computer readable storage medium.
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
Currently, conventional vibration friction welding method is using three-phase inverter output three-phase symmetric voltage namely U, V, W tri-
Phase output voltage, the frequency of output voltage uses the resonance frequency of equipment, by adjusting output voltage amplitude, i.e., controllable vibration
The amplitude of friction welding apparatus vibration, guarantees the normal weld of workpiece.But left vibrator coil and the right vibration of program vibration friction welding (FW)
Moving winding has electric current simultaneously, opposite effect power is generated, wherein lesser active force can balance out the one of biggish active force
Part, current utilization rate is low, causes to need to amplify type selecting in actual use, while will increase module in three-phase inverter and sending out
Heat.A kind of vibration friction welding method provided by the present application, can be improved current utilization rate, and then avoid in actual use process
In need to amplify type selecting, reduce module heating amount in three-phase inverter.Specifically referring to FIG. 1, Fig. 1 is mentioned by the embodiment of the present application
A kind of flow chart of the vibration friction welding method supplied, the vibration friction welding method specifically include:
S101, the demand according to input determine the Oscillation Amplitude of vibration friction welding apparatus；
S102, the vibration frequency that vibration friction welding apparatus is determined according to Oscillation Amplitude, and using vibration frequency as three contraries
Become the electric voltage frequency of the second phase of device；
The executing subject of the embodiment of the present application is three-phase inverter, is not especially limited at this to three-phase inverter, as long as
Meet demand.The of the left vibrator coil of first phase of three-phase inverter and vibration friction welding apparatus in the embodiment of the present application
One end connection, the third phase of three-phase inverter are connect with the second end of right vibrator coil, and the second of the second phase and left vibrator coil
It holds, the first end of right vibrator coil is all connected with.The structure of three-phase inverter is as shown in Fig. 2, Fig. 2 is provided by the embodiment of the present application
A kind of three-phase inverter structural schematic diagram, U, V, W in Fig. 2 are the first phase of above-mentioned three-phase inverter, the second phase respectively
And third phase, each phase have corresponding upper bridge module and lower bridge module (" upper bridge " and " lower bridge " are briefly referred to as in Fig. 2), often
One corresponding upper bridge module and lower bridge module will not simultaneously turn on, i.e., upper bridge module and lower bridge module are complementary relationships.This Shen
Three-phase inverter please connect with vibration friction welding apparatus in embodiment, for controlling vibration friction welding apparatus, vibrate friction welding (FW) and set
Standby structure as shown in figure 3, Fig. 3 is a kind of structural schematic diagram for vibrating friction welding apparatus provided by the embodiment of the present application, by
Fig. 3 is it is found that U (the first phase) connect with the first end of left vibrator coil of vibration friction welding apparatus, W (third phase) and right vibrational line
The second end of circle connects, and V (the second phase) is all connected with the second end of left vibrator coil, the first end of right vibrator coil, Zuo Zhendong
The left side of coil is equipped with corresponding left iron core, and the right of right vibrator coil is equipped with corresponding right iron core, left vibrator coil and right vibration
Damping spring is equipped between moving winding, damping spring is arranged right below the upper workpiece of friction, is equipped in height and pressure regulator
Workpiece under friction corresponding with the upper workpiece that rubs, the upper workpiece of friction it is positive on the right of equipped with amplitude sensor.
Vibrate friction welding (FW) working principle: vibration friction welding apparatus includes two vibrator coils in left and right, when left vibrator coil has
When electric current (no matter positive and negative) flows through, left vibrator coil generates attraction to the left with left iron core；When right vibrator coil have electric current (no matter
It is positive and negative) when flowing through, right vibrator coil generates attraction to the right with right iron core.The resultant force that side-to-side vibrations coil generates drives " friction
Upper workpiece " side-to-side movement, when " workpiece in friction " and " rub lower workpiece " presses together, mutual frictional heating can will be upper
Lower workpiece welds together.Since the electromagnetic force that vibrator coil generates iron core is positive and negative unrelated with electric current, friction welding (FW) is vibrated
The resultant force of generation be proportional to left and right coil current absolute value and.Vibration friction generate resultant force F ∝ (| iu|-|iw|), as long as therefore
Both sides vibrator coil exists simultaneously electric current, just will appear the electromagnetic force of opposite direction, and technical solution of the present invention seeks to pass through control
Three-phase inverter processed output, guarantees there was only unilateral vibrator coil by synchronization as far as possible that there are electric currents, improves the electromagnetism of unitary current
Power.Unilateral size of current is also controlled simultaneously, so that electromagnetic force size is adjusted, so that friction welding (FW) is moved back and forth by setting amplitude.
Wherein, iuIndicate the left vibrator coil electric current connecting with U, iwIndicate the right vibrator coil electric current connecting with W.
The Oscillation Amplitude of vibration friction welding apparatus is determined in the embodiment of the present application according to the demand of input, namely according to user
Demand determine vibration friction welding apparatus Oscillation Amplitude, Oscillation Amplitude is not especially limited at this, need according to the actual situation and
It is fixed.After the Oscillation Amplitude for determining vibration friction welding apparatus, the vibration frequency of vibration friction welding apparatus is determined according to Oscillation Amplitude,
And using vibration frequency as the frequency of the electric voltage frequency of the second phase of three-phase inverter namely output voltage using vibration friction welding (FW)
The resonance frequency of equipment.
S103, inverter carrier cycle is determined using electric voltage frequency, and according to preset drive in inverter carrier cycle
Dynamic duty ratio automatically adjusts operation, to realize that left vibrator coil and the right vibrator coil of vibration friction welding apparatus have in turn
Operating current carries out workpiece welding.
Further, above-mentioned to determine inverter carrier cycle, and the basis in inverter carrier cycle using electric voltage frequency
Preset driving duty ratio automatically adjusts operation, to realize the left vibrator coil and right vibrator coil of vibration friction welding apparatus
There is operating current in turn and carries out workpiece welding, generally include: determining inverter carrier cycle using electric voltage frequency, and by inversion
Device carrier cycle is divided into first stage, second stage, phase III and fourth stage；Wherein, first stage and phase III
Duration it is equal, the duration of second stage and fourth stage is equal；Respectively first stage, second stage, phase III and
The corresponding first driving duty ratio of four stages configuration, the second driving duty ratio, third driving duty when the 4th drive duty ratio；
Successively in the first stage, second stage, in phase III and fourth stage, driven according to corresponding first driving duty ratio, second
When the 4th driving duty ratio automatically adjusts operation for dynamic duty ratio, third driving duty, to realize left vibrator coil and the right side
Vibrator coil has operating current in turn and carries out workpiece welding.
Further, it is above-mentioned successively in the first stage, second stage, in phase III and fourth stage, according to corresponding
When the 4th driving duty ratio automatically adjusts operation for first driving duty ratio, the second driving duty ratio, third driving duty,
Workpiece welding is carried out to realize that left vibrator coil and right vibrator coil have operating current in turn, is generally included: in the first stage
It is interior, the first phase, the second phase and corresponding first phase of third is respectively configured and drives duty ratio, two phase displacement duty when third
Mutually driving duty ratio, and drive duty ratio, two phase displacement duty when third phase driving duty ratio as first first phase
Drive duty ratio；It is automatically adjusted operation according to the first driving duty ratio.
Further, above-mentioned to be automatically adjusted operation according to the first driving duty ratio, it generally includes: according to the drive of the first phase
Dynamic duty ratio automatically adjusts in the first corresponding first phase bridge module under bridge module and the first phase；It is accounted for according to two phase displacement
Empty ratio automatically adjusts in the second corresponding second phase bridge module under bridge module and the second phase；Duty ratio is driven according to third phase,
Automatically adjust on the corresponding third phase of third bridge module under bridge module and third phase.
The embodiment of the present application drives duty ratio, i.e., controllable vibration friction welding (FW) or so by controlling U, V, W or more bridge module
Coil line voltage, indirectly controls and flows through coil current, to control friction welding (FW) by setting amplitude vibration.As shown in figure 4, Fig. 4 is
A kind of U, V, W three-phase bridge arm PWM drive signal schematic diagram provided by the embodiment of the present application, as shown in Figure 4, each inverter carry
Wave period Ts4 stages are divided into, wherein the T identical as 3 action time of stage of stage 11=T3, stage 2 and 4 action time of stage
Identical T2=T4.The identical guarantee coil voltage-second balance with 3 time of stage of stage 1 so that coil current establish it is same
When, another coil current is reset to 0.Stage 2 is identical with 4 action time of stage, guarantees to generate symmetrical active force, so that coil
Amplitude of reciprocating vibration is identical.In the stage 1, it is upper bridge 7T that U phase, which drives duty ratio,s/ 8, lower bridge is complementary；Wherein, " lower bridge is complementary "
Refer to it is complementary with upper bridge with Xia Qiao because Shang Qiao and lower bridge will not simultaneously turn on；It is upper bridge T that V phase, which drives duty ratio,s/ 2, lower bridge
It is complementary；It is upper bridge 7T that W phase, which drives duty ratio,s/ 8, lower bridge is complementary.In the stage 2, it is upper bridge T that U phase, which drives duty ratio,s/ 2, lower bridge
It is complementary；It is upper bridge T that V phase, which drives duty ratio,s/ 2, lower bridge is complementary；W phase drives duty ratio defeated for upper bridge block output, the block of lower bridge
Out.In the stage 3, it is upper bridge T that U phase, which drives duty ratio,s/ 8, lower bridge is complementary；It is upper bridge T that V phase, which drives duty ratio,s/ 2, lower bridge is mutual
It mends；It is upper bridge T that W phase, which drives duty ratio,s/ 8, lower bridge is complementary.In the stage 4, U phase drive duty ratio be upper bridge block output, under
Bridge block output；It is upper bridge T that V phase, which drives duty ratio,s/ 2, lower bridge is complementary；It is upper bridge T that W phase, which drives duty ratio,s/ 2, lower bridge is complementary.
In Fig. 4, Uuv_avgIndicate the average voltage between U phase and V phase, Uwv_avgIndicate the average electricity between W phase and V phase
Pressure.In the stage 1, Uuv_avgAnd Uwv_avgIt is all larger than 0；In the stage 2, Uuv_avgAnd Uwv_avgIt is equal to 0；In the stage 3,
Uuv_avgAnd Uwv_avgRespectively less than 0；In the stage 4, Uuv_avgAnd Uwv_avgIt is equal to 0.The embodiment of the present application is in each harmonic period
Interior, the meeting lockout module pulse of the part bridge arm of stage 2 and 4 can effectively reduce the switching loss of inverter.
In Fig. 4, I+ ampIndicate positive output electric current, I- ampIndicate that negative sense exports electric current, iv、iu、iwRespectively indicate V, U, W
Export electric current, iv4 stages variation as shown by the bold lines in fig, iu4 stages variation such as in Fig. 4 by a combination
At dotted line shown in, iwShown in the dotted line being combined into as line segment and point changed such as in Fig. 4 in 4 stages.As shown in Figure 4,
There are following calculated relationships:
(1) meets following relationship in harmonic period of reciprocating vibration:
Ts=T1+T2+T3+T4
T1=T3
T2=T4
(2) each stage voltage current relationship of:
Stage 1:
uuv_avg> 0
uwv_avg> 0
uuv_avg=uwv_avg
iu=0+uuv_avg*T1=I+ amp
iw=I- amp+uwv_avg*T1=0
iv=-(iu+iw)
I+ amp=-I- amp
Stage 2:
uuv_avg=0
uwv_avg=0
iu=I+ amp+uuv_avg*T2=I+ amp
iw=0+uwv_avg*T2=0
iv=-(iu+iw)
I+ amp=-I- amp
Stage 3:
uuv_avg< 0
uwv_avg< 0
uuv_avg=uwv_avg
iu=I+ amp+uuv_avg*T3=0
iw=0+uwv_avg*T3=I- amp
iv=-(iu+iw)
I+ amp=-I- amp
Stage 4:
uuv_avg=0
uwv_avg=0
iu=0+uuv_avg*T4=0
iw=I- amp+uwv_avg*T4=I- amp
iv=-(iu+iw)
I+ amp=-I- amp
It by above 4 stages, that is, can guarantee in each harmonic period, left and right each half period of two vibrator coils exists
Electric current, at this time vibrate friction welding (FW) coil generate resultant force F ∝ (| iu|-|iw|)=- iv.For above 4 stages, for for the first time
In first harmonic period of operation, U, V, W phase current are 0, therefore the first stage of first harmonic period is needed
Specially treated, it is T that this season W phase, which drives duty ratio,s/ 2, it is ensured that subsequent current is run as shown in Figure 4.
Further, which usually can also include: the vibration that vibration friction welding apparatus is adjusted using PID
Dynamic amplitude.Specifically, pass through T1/T3Action time in stage, i.e., adjustable T2/T4Stage coil current size, to control electromagnetism
Power size, so that vibration friction welding (FW) peak swing variation.To guarantee that vibration friction welding (FW) is vibrated according to predetermined amplitude, amplitude is set
Value and value of feedback, after being adjusted by PID, output is used as T1/T3Action time gives, to reach control amplitude purpose.Such as figure
Shown in 5, Fig. 5 is a kind of Oscillation Amplitude control schematic diagram provided by the embodiment of the present application, and as shown in Figure 5, friction welding (FW) amplitude is given
Fixed and friction welding (FW) amplitude feedback, namely amplitude setting value and value of feedback are obtained, after adjusting by PID, export T1/T3Action time.
Three-phase inverter carries out certainly in inverter carrier cycle according to preset driving duty ratio in the embodiment of the present application
It is dynamic to adjust operation, workpiece welding, independent control are carried out to realize that left vibrator coil and right vibrator coil have operating current in turn
Friction welding (FW) coil current is vibrated, the electromagnetic force of unitary current is improved.Since left vibrator coil and right vibrator coil have work in turn
Make electric current, therefore opposite effect power will not be generated, is also just not present and occurs the case where active force counteracting in the related technology, therefore the party
Method can be improved current utilization rate, and then avoid needing to amplify type selecting in actual use, reduce mould in three-phase inverter
Block calorific value.Vibration friction welding method provided by the present application is applicable not only to senior middle school's low pressure inverter control mode, applies also for
Multilevel mode.
Below to a kind of vibration friction welding (FW) system provided by the embodiments of the present application, three-phase inverter and computer-readable storage
Medium is introduced, vibration friction welding (FW) system, three-phase inverter and computer readable storage medium described below with retouch above
The vibration friction welding method stated can correspond to each other reference.
Referring to FIG. 6, Fig. 6 is a kind of structural block diagram for vibrating friction welding (FW) system provided by the embodiment of the present application；The vibration
System is welded in dynamic friction
Oscillation Amplitude determining module 601 determines the Oscillation Amplitude of vibration friction welding apparatus for the demand according to input；
Electric voltage frequency determining module 602, for determining the vibration frequency of vibration friction welding apparatus according to Oscillation Amplitude, and will
Electric voltage frequency of the vibration frequency as the second phase of three-phase inverter；
Self-adjustment module 603, for determining inverter carrier cycle using electric voltage frequency, and in inverter carrier cycle
It is interior to be automatically adjusted operation according to preset driving duty ratio, with realize vibration friction welding apparatus left vibrator coil and right vibration
Moving winding has operating current in turn and carries out workpiece welding.
Based on the above embodiment, self-adjustment module 603 in the present embodiment, generally includes:
Divided stages submodule, for determining inverter carrier cycle using electric voltage frequency, and by inverter carrier cycle
It is divided into first stage, second stage, phase III and fourth stage；Wherein, the duration of first stage and phase III are equal,
The duration of second stage and fourth stage is equal；
It drives duty ratio to configure submodule, matches for respectively first stage, second stage, phase III and fourth stage
Set corresponding first driving duty ratio, the second driving duty ratio, third driving duty when the 4th driving duty ratio；
Automatically adjust submodule, for successively in the first stage, second stage, in phase III and fourth stage, according to
When the 4th driving duty ratio is adjusted automatically for corresponding first driving duty ratio, the second driving duty ratio, third driving duty
Section operation carries out workpiece welding to realize that left vibrator coil and right vibrator coil have operating current in turn.
Based on the above embodiment, submodule is automatically adjusted in the present embodiment, generally included:
Duty ratio configuration unit is driven, in the first stage, it is corresponding that the first phase, the second phase and third is respectively configured
The first phase driving duty ratio, when third phase drives duty ratio to two phase displacement duty, and the first phase is driven into duty ratio, the
When third phase drives duty ratio as the first driving duty ratio to two phase displacement duty；
Automatic adjustment unit, for being automatically adjusted operation according to the first driving duty ratio.
The application also provides a kind of three-phase inverter, comprising: memory and processor；Wherein, memory is based on storing
The step of calculation machine program, processor is for realizing the vibration friction welding method of above-mentioned any embodiment when executing computer program.
The application also provides a kind of computer readable storage medium, and computer-readable recording medium storage has computer journey
Sequence, the step of vibration friction welding method of above-mentioned any embodiment is realized when computer program is executed by processor.
The computer readable storage medium may include: USB flash disk, mobile hard disk, read-only memory (Read-Only
Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For embodiment provide system and
Speech, since it is corresponding with the method that embodiment provides, so being described relatively simple, related place is referring to method part illustration
?.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond the scope of this invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
It to a kind of vibration friction welding method provided herein, system, three-phase inverter and computer-readable deposits above
Storage media is described in detail.Specific examples are used herein to illustrate the principle and implementation manner of the present application,
The description of the example is only used to help understand the method for the present application and its core ideas.It should be pointed out that for this technology
For the those of ordinary skill in field, under the premise of not departing from the application principle, several improvement can also be carried out to the application
And modification, these improvement and modification are also fallen into the protection scope of the claim of this application.
Claims (10)
1. a kind of vibration friction welding method, which is characterized in that be applied to three-phase inverter, comprising:
According to the demand of input, the Oscillation Amplitude of vibration friction welding apparatus is determined；
The vibration frequency of the vibration friction welding apparatus is determined according to the Oscillation Amplitude, and using the vibration frequency as described in
The electric voltage frequency of second phase of three-phase inverter；
Inverter carrier cycle is determined using the electric voltage frequency, and according to preset driving in the inverter carrier cycle
Duty ratio automatically adjusts operation, to realize that left vibrator coil and the right vibrator coil of the vibration friction welding apparatus are deposited in turn
There is operating current to carry out workpiece welding.
2. vibration friction welding method according to claim 1, which is characterized in that the utilization electric voltage frequency determines inverse
Become device carrier cycle, and is automatically adjusted operation in the inverter carrier cycle according to preset driving duty ratio, with
Realize that the left vibrator coil of the vibration friction welding apparatus and right vibrator coil have operating current in turn and carry out workpiece welding, packet
It includes:
The inverter carrier cycle is determined using the electric voltage frequency, and the inverter carrier cycle is divided into the first rank
Section, second stage, phase III and fourth stage；Wherein, the duration of the first stage and the phase III are equal, described
The duration of second stage and the fourth stage is equal；
The respectively described first stage, the second stage, the phase III and fourth stage configuration corresponding first
Drive duty ratio, the second driving duty ratio, third driving duty when the 4th driving duty ratio；
Successively in the first stage, the second stage, the phase III and the fourth stage, according to corresponding
When the 4th driving duty ratio carries out the automatic adjustment behaviour for one driving duty ratio, the second driving duty ratio, third driving duty
Make, carries out workpiece welding to realize that the left vibrator coil and the right vibrator coil have the operating current in turn.
3. vibration friction welding method according to claim 2, which is characterized in that described successively in the first stage, institute
It states in second stage, the phase III and the fourth stage, according to corresponding first driving duty ratio, the second driving duty
When than, third driving duty the 4th driving duty ratio carries out the automatic adjustment operation, with realize the left vibrator coil with
The right vibrator coil has the operating current in turn and carries out workpiece welding, comprising:
Within the first stage, be respectively configured the first phase, second phase and third corresponding first phase driving duty ratio,
When third phase drives duty ratio to two phase displacement duty, and drives duty ratio, the two phase displacement to account for first phase
The empty when described third phase driving duty ratio is as the first driving duty ratio；
The automatic adjustment operation is carried out according to the first driving duty ratio.
4. vibration friction welding method according to claim 3, which is characterized in that described according to the first driving duty ratio
Carry out the automatic adjustment operation, comprising:
Duty ratio is driven according to first phase, is automatically adjusted in first corresponding first phase under bridge module and the first phase
Bridge module；
According to the two phase displacement duty ratio, automatically adjust in second corresponding second phase under bridge module and the second phase
Bridge module；
Duty ratio is driven according to the third phase, is automatically adjusted on the corresponding third phase of the third under bridge module and third phase
Bridge module.
5. vibration friction welding method according to claim 1, which is characterized in that further include:
The Oscillation Amplitude of the vibration friction welding apparatus is adjusted using PID.
6. a kind of vibration friction welding (FW) system, which is characterized in that be applied to three-phase inverter, comprising:
Oscillation Amplitude determining module determines the Oscillation Amplitude of vibration friction welding apparatus for the demand according to input；
Electric voltage frequency determining module, for determining the vibration frequency of the vibration friction welding apparatus according to the Oscillation Amplitude, and
Using the vibration frequency as the electric voltage frequency of the second phase of the three-phase inverter；
Self-adjustment module, for determining inverter carrier cycle using the electric voltage frequency, and in the inverter carrier cycle
It is automatically adjusted operation in phase according to preset driving duty ratio, to realize the left vibrator coil for vibrating friction welding apparatus
There is operating current in turn with right vibrator coil and carries out workpiece welding.
7. vibration friction welding (FW) system according to claim 6, which is characterized in that the self-adjustment module, comprising:
Divided stages submodule, for determining the inverter carrier cycle using the electric voltage frequency, and by the inverter
Carrier cycle is divided into first stage, second stage, phase III and fourth stage；Wherein, the first stage and described
Triphasic duration is equal, and the duration of the second stage and the fourth stage is equal；
It drives duty ratio to configure submodule, is used for the respectively described first stage, the second stage, the phase III and institute
Stating the corresponding first driving duty ratio of fourth stage configuration, the second driving duty ratio, third driving duty, when the 4th driving accounts for
Empty ratio；
Submodule is automatically adjusted, for successively in the first stage, the second stage, the phase III and the described 4th
In stage, duty ratio when the 4th is driven according to corresponding first driving duty ratio, the second driving duty ratio, third driving duty
The automatic adjustment operation is carried out, to realize that the left vibrator coil and the right vibrator coil have the operating current in turn
Carry out workpiece welding.
8. vibration friction welding (FW) system according to claim 7, which is characterized in that the automatic adjustment submodule, comprising:
Duty ratio configuration unit is driven, for the first phase, second phase and third phase to be respectively configured within the first stage
When third phase drives duty ratio for corresponding first phase driving duty ratio, two phase displacement duty, and first phase is driven
When the third phase drives duty ratio as the first driving duty ratio for duty ratio, the two phase displacement duty；
Automatic adjustment unit is operated for carrying out the automatic adjustment according to the first driving duty ratio.
9. a kind of three-phase inverter characterized by comprising
Memory and processor；Wherein, the memory is for storing computer program, the processor by execute it is described based on
It realizes when calculation machine program such as the step of vibration friction welding method described in any one of claim 1 to 5.
10. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has computer journey
Sequence is realized when the computer program is executed by processor such as vibration friction welding method described in any one of claim 1 to 5
Step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910463608.0A CN110170737A (en) | 2019-05-30 | 2019-05-30 | A kind of vibration friction welding method, system and relevant apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910463608.0A CN110170737A (en) | 2019-05-30 | 2019-05-30 | A kind of vibration friction welding method, system and relevant apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110170737A true CN110170737A (en) | 2019-08-27 |
Family
ID=67696678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910463608.0A Pending CN110170737A (en) | 2019-05-30 | 2019-05-30 | A kind of vibration friction welding method, system and relevant apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110170737A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113478065A (en) * | 2021-06-30 | 2021-10-08 | 苏州英威腾电力电子有限公司 | Control method and control circuit of multiplexing H-bridge circuit and friction welding device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6364977B1 (en) * | 2000-06-05 | 2002-04-02 | Sonics & Materials Inc. | Tuning mechanism and method for vibration welding |
| US20060220599A1 (en) * | 2005-04-04 | 2006-10-05 | Siegler David W | Drive unit for controlling reciprocating electromagnets |
| CN1867445A (en) * | 2003-10-11 | 2006-11-22 | Kln超声有限公司 | Method and arrangement for friction welding |
| CN201304718Y (en) * | 2008-12-05 | 2009-09-09 | 东莞市长江超声波机有限公司 | Novel vibration friction welding machine |
| CN102336020A (en) * | 2010-07-14 | 2012-02-01 | 杜凯恩公司 | Vibration welding system |
| CN102649313A (en) * | 2012-03-30 | 2012-08-29 | 苏州凯尔博精密机械有限公司 | Vibration head used for vibration friction welding machine |
| US9688017B2 (en) * | 2013-05-14 | 2017-06-27 | Dukan IAS, LLC | Vibration welders with high frequency vibration, position motion control, and delayed weld motion |
| CN109652927A (en) * | 2018-12-29 | 2019-04-19 | 杰克缝纫机股份有限公司 | Presser feet control method, device, computer equipment and storage medium |
| CN109742998A (en) * | 2018-12-24 | 2019-05-10 | 维沃移动通信有限公司 | Vibration component, motor control method and terminal |
| CN109739225A (en) * | 2018-12-18 | 2019-05-10 | 北京百度网讯科技有限公司 | Location data processing method, device, equipment, storage medium and vehicle |
-
2019
- 2019-05-30 CN CN201910463608.0A patent/CN110170737A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6364977B1 (en) * | 2000-06-05 | 2002-04-02 | Sonics & Materials Inc. | Tuning mechanism and method for vibration welding |
| CN1867445A (en) * | 2003-10-11 | 2006-11-22 | Kln超声有限公司 | Method and arrangement for friction welding |
| US20060220599A1 (en) * | 2005-04-04 | 2006-10-05 | Siegler David W | Drive unit for controlling reciprocating electromagnets |
| CN201304718Y (en) * | 2008-12-05 | 2009-09-09 | 东莞市长江超声波机有限公司 | Novel vibration friction welding machine |
| CN102336020A (en) * | 2010-07-14 | 2012-02-01 | 杜凯恩公司 | Vibration welding system |
| CN102649313A (en) * | 2012-03-30 | 2012-08-29 | 苏州凯尔博精密机械有限公司 | Vibration head used for vibration friction welding machine |
| US9688017B2 (en) * | 2013-05-14 | 2017-06-27 | Dukan IAS, LLC | Vibration welders with high frequency vibration, position motion control, and delayed weld motion |
| CN109739225A (en) * | 2018-12-18 | 2019-05-10 | 北京百度网讯科技有限公司 | Location data processing method, device, equipment, storage medium and vehicle |
| CN109742998A (en) * | 2018-12-24 | 2019-05-10 | 维沃移动通信有限公司 | Vibration component, motor control method and terminal |
| CN109652927A (en) * | 2018-12-29 | 2019-04-19 | 杰克缝纫机股份有限公司 | Presser feet control method, device, computer equipment and storage medium |
Non-Patent Citations (1)
| Title |
|---|
| 黄宋魏等: "《矿物加工自动化》", 30 November 2017, 贵州大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113478065A (en) * | 2021-06-30 | 2021-10-08 | 苏州英威腾电力电子有限公司 | Control method and control circuit of multiplexing H-bridge circuit and friction welding device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Sepe et al. | Inverter nonlinearities and discrete-time vector current control | |
| JP5889632B2 (en) | UPS, frequency converter and line conditioner | |
| JP6047287B2 (en) | Modulated power supply stage and method for generating power supply voltage | |
| Xiao et al. | A novel power factor control scheme for high-power GTO current-source converter | |
| Mohapatra et al. | Model predictive control for flexible reduction of active power oscillation in grid-tied multilevel inverters under unbalanced and distorted microgrid conditions | |
| CN105209206A (en) | Electric arc welder using high frequency pulses and negative polarity | |
| CN104124883A (en) | Power conversion system and method of controlling power conversion system | |
| JP2010263702A (en) | Three-phase/single-phase direct power converter circuit | |
| CN101141068A (en) | Control methods for pulse width modulation (PWM) | |
| CN107408880A (en) | The model prediction damping of vibration in electropneumatic transducer system | |
| CN101467344B (en) | Inverter device and air conditioner | |
| CN110170737A (en) | A kind of vibration friction welding method, system and relevant apparatus | |
| Wang et al. | Analysis of voltage modulation based active damping techniques for small DC-link drive system | |
| JP2015056939A (en) | Motor controller | |
| JP5042512B2 (en) | Power control device | |
| CN208508827U (en) | Reduce the device and EC motor of the torque ripple of EC motor | |
| CN107994825A (en) | A kind of oscillation suppression method, system, device and readable storage medium storing program for executing | |
| JP2017017799A (en) | Conversion device and control method | |
| JP2007508158A (en) | Friction welding method and apparatus | |
| JP2001128462A (en) | Inverter device control method | |
| Shinagawa et al. | Source-side state feedback-based electrolytic capacitor-less inverter drive system using one sample predictive state observer | |
| RU2697505C1 (en) | Automatic device and method for compensation of losses for reactive component in alternating current networks | |
| Murai et al. | New series resonant DC link inverter for electric vehicle drives | |
| Ferreira et al. | An active inline notch filter for reducing acoustic noise in drives | |
| Kazemlou et al. | Direct torque control of four-switch three phase inverter fed induction motor using a modified SVM to compensate dc-link voltage imbalance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190827 |