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CN109365937A - A kind of engine commutator and varistor laser soldering device and method - Google Patents

A kind of engine commutator and varistor laser soldering device and method Download PDF

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Publication number
CN109365937A
CN109365937A CN201811504879.8A CN201811504879A CN109365937A CN 109365937 A CN109365937 A CN 109365937A CN 201811504879 A CN201811504879 A CN 201811504879A CN 109365937 A CN109365937 A CN 109365937A
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CN
China
Prior art keywords
laser
commutator
varistor
welding
engine
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.)
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CN201811504879.8A
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Chinese (zh)
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CN109365937B (en
Inventor
檀正东
周旋
王海英
唐峻汐
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SHENZHEN ANEWBEST ELECTRONIC TECHNOLOGY Co Ltd
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SHENZHEN ANEWBEST ELECTRONIC TECHNOLOGY Co Ltd
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Publication of CN109365937A publication Critical patent/CN109365937A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K1/00Soldering, e.g. brazing, or unsoldering
    • B23K1/005Soldering by means of radiant energy
    • B23K1/0056Soldering by means of radiant energy soldering by means of beams, e.g. lasers, E.B.
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K3/00Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
    • B23K3/08Auxiliary devices therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

The present invention is suitable for technical field of laser welding.The present invention discloses a kind of engine commutator and varistor laser soldering device and method, wherein engine commutator and varistor laser soldering device include the laser preheating mechanism heated to commutator terminal and the laser spray welding mechanism to preheating commutator terminal injection soldered ball, and coordinate the controller of laser preheating mechanism and the work of laser spray welding mechanism.The terminal on thermally conductive faster commutator is heated by laser preheating mechanism when use, again to the soldered ball of terminal and the injection fusing of varistor pad, since commutator terminal is by preheating, the temperature of soldered ball can be reduced, it can be infiltrated with terminal, varistor pad cannot be made to separate with ceramic base again, reduce welding procedure difficulty.Simultaneously because the quality error of each ball is small, and solder joint is uniformly distributed, and can be prevented each quality of welding spot unevenness from rotor being caused to rotate force unbalance using laser spray welding, be prolonged the service life.

Description

A kind of engine commutator and varistor laser soldering device and method
Technical field
The present invention relates to a kind of welding technology field, in particular to a kind of engine commutator and varistor and varistor Laser soldering device and method.
Background technique
In process of production, commutator needs are welded existing motor with the coil on rotor, are changed under normal conditions To device setting on rotor shaft, on having commutator one end be equipped with varistor, the varistor be equipped with for connect changes To the silver pad of device and coil.
Two kinds of welding manners are generallyd use at present, the first uses artificial soldering iron mode, and when welding needs using scaling powder, It is stained with solder with soldering iron to be welded, since silver pad and commutator terminal are different materials, heating conduction is different, silver Pad heating conduction is poor, and commutator is thermally conductive very fast, when being welded using same higher temperature (welding energy), be easy to cause silver Pad is separated with ceramic base, and insufficient using commutator welding temperature when lower temperature welding, is easy to appear not prison welding.Simultaneously Each solder joint is different with tin amount when human weld, so that being distributed in armature spindle ambient quality difference, gravity occurs and is located at axle center In addition, noise is generated when use, and influences service life.When welding using scaling powder, also need to carry out after the completion of welding clear It washes, causes environmental pollution, increase process, influence production efficiency.
Second of use laser tin silk welding manner carries out laser photograph to the tin silk by rotating tin silk in bond pad locations It penetrates, is welded, also due to varistor and commutator are different materials, heating conduction is different, silver on varistor Matter pad heating conduction is poor, and commutator is thermally conductive very fast, when welding using same higher temperature (welding energy), be easy to cause pressure The quick silver pad of resistance is separated with plate, and insufficient using commutator welding temperature when lower temperature welding, is easy to appear welding not Firm phenomenon.When laser solder weldering simultaneously, it is also easy the coil being reflected on rotor in laser irradiation process, burns out coil insulation Layer, causes coil short.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of engine commutator and varistor laser soldering device and Method, wherein engine commutator and varistor laser soldering device, which can prevent each quality of welding spot to be unevenly distributed, leads to rotor Force unbalance improves product quality and service life.
To solve the above-mentioned problems, the present invention provides a kind of engine commutator and varistor laser soldering device.The electricity Machine commutator and varistor laser soldering device include the laser preheating mechanism heated to commutator terminal and to pre-add The laser spray welding mechanism of hot commutator terminal injection soldered ball, and coordinate the control of laser preheating mechanism and the work of laser spray welding mechanism Device processed.
It further says, the engine commutator and varistor laser soldering device further include carrying out to commutator face The removing surface mechanism of cleaning.
It further says, the removing surface mechanism includes the drive of cleaning brush and driving cleaning brush and commutator rotation connection Dynamic component.
It further says, the removing surface mechanism further includes the blowing to the commutator removal clast after cleaning brush cleaning Mechanism, the blower which is equipped with tuyere and connect with tuyere.
It further says, the engine commutator and the receipts that varistor laser soldering device further includes that clast is collected Collecting mechanism, which includes the collector equipped with collecting chamber and the negative pressure collection port set on collector, and is received with negative pressure The negative pressure packaging member of Ji Kou connection.
The present invention also provides a kind of engine commutators and varistor laser soldering device.The engine commutator and pressure-sensitive electricity Resistance laser soldering device includes the laser of laser spray welding mechanism and variable power, and control laser spray welding mechanism and variable function The controller of the laser co-ordination of rate.
It further says, the engine commutator and varistor laser soldering device further include carrying out to commutator face The removing surface mechanism of cleaning.
It further says, the removing surface mechanism includes the drive of cleaning brush and driving cleaning brush and commutator rotation connection Dynamic component.
It further says, the removing surface mechanism further includes the blowing to the commutator removal clast after cleaning brush cleaning Mechanism, the blower which is equipped with tuyere and connect with tuyere.
It further says, the engine commutator and the receipts that varistor laser soldering device further includes that clast is collected Collecting mechanism, which includes the collector equipped with collecting chamber and the negative pressure collection port set on collector, and is received with negative pressure The negative pressure packaging member of Ji Kou connection.
The present invention also provides a kind of engine commutators and varistor method for laser welding, including,
First time surfacing step, first irradiating the first soldered ball with the first energy laser makes to be irradiated the first weldering by the first energy laser Ball fusing, and spray the first soldered ball of the fusing to pad solder joint, it is connect with pad;
Second of surfacing step, irradiating the second soldered ball to the second energy laser of first time surfacing position makes by the second energy The second melt solder balls of laser irradiation, and make the second soldered ball of the fusing to commutator terminal solder joint spray, make commutator terminal with Solder joint or the pad connection that first soldered ball is formed, wherein energy of the energy of first energy laser less than the second energy laser Amount.
It further says, the temperature of first melt solder balls is higher than the fusion temperature of the second soldered ball temperature.
It further says, the engine commutator and varistor method for laser welding further include before welding to commutator The removing surface step that surface is cleared up.
It further says, the removing surface step includes that will connect in cleaning brush and engine commutator and varistor surface Touching, rotary electric machine commutator and varistor or cleaning brush form cleaning brush with varistor surface with engine commutator and rub Contact is wiped, until engine commutator is separated with varistor surface oxide layer.
It further says, the removing surface step further includes being blown with gas engine commutator and varistor surface Gas cleans out oxide layer clast, completes removing surface.
The present invention also provides a kind of engine commutators and varistor method for laser welding, including,
First it is preheated with first laser irradiation commutator solder terminal, makes the commutator terminal temperature irradiated by first laser Degree increases;
Soldered ball with the irradiation of the second energy laser for welding again makes the melt solder balls irradiated by the second energy laser, and It sprays the soldered ball of the fusing to commutator terminal, connect terminal with pad.
The engine commutator and varistor method for laser welding further include carrying out clearly to commutator face before welding The cleanup step of reason.
It further says, the energy of the energy of first energy laser less than the second energy laser.
It further says, the temperature of the first melt solder balls of the fusing is higher than the fusion temperature of the second soldered ball temperature.
It further says, the removing surface step includes that will connect in cleaning brush and engine commutator and varistor surface Touching, rotary electric machine commutator and varistor or cleaning brush form cleaning brush with varistor surface with engine commutator and rub Contact is wiped, until engine commutator is separated with varistor surface oxide layer.
It further says, the removing surface step further includes being blown with gas engine commutator and varistor surface Gas cleans out oxide layer clast, completes removing surface.
Engine commutator of the present invention and varistor laser soldering device and method, wherein engine commutator and varistor Laser soldering device includes the laser preheating mechanism heated to commutator terminal and welds to preheating commutator terminal injection The laser spray welding mechanism of ball, and coordinate the controller of laser preheating mechanism and the work of laser spray welding mechanism, or spray including laser The laser of welding mechanism and variable power, and control the control of the laser co-ordination of laser spray welding mechanism and variable power Device.The terminal on thermally conductive faster commutator is heated by laser preheating mechanism when use, then to terminal and pressure-sensitive electricity The soldered ball for hindering silver pad injection fusing, since commutator terminal is by preheating, energy dissipation is slower when welding, and can reduce The temperature of soldered ball, to can not infiltrate with terminal when avoiding temperature lower, pad is separated with ceramic base when temperature is higher, reduces weldering Technology difficulty is connect, welding effect is improved.Simultaneously because the quality error of each ball is small, and solder joint is uniformly distributed in rotor shaft week It encloses, when using laser spray welding, each quality of welding spot can be prevented, which to be unevenly distributed, leads to rotor force unbalance, extends and uses the longevity Life.Laser tin ball bonding flux-free is used simultaneously, is cleaned, is improved efficiency, while also can be reduced ring after not needing welding Border pollution.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the attached drawing in description illustrates only the present invention Some embodiments, therefore be not construed as the restriction to range, for those of ordinary skill in the art, do not paying Under the premise of creative work, it can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is engine commutator and varistor laser soldering device first embodiment schematic illustration.
Fig. 2 is engine commutator and varistor laser soldering device first embodiment schematic illustration.
Fig. 3 is engine commutator and varistor method for laser welding first embodiment flow diagram.
Fig. 4 is engine commutator and varistor method for laser welding second embodiment flow diagram.
Below with reference to embodiment, and referring to attached drawing, the realization, the function and the advantages of the object of the present invention are made furtherly It is bright.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
In order to illustrate more clearly of technical solution of the present invention, combined with specific embodiments below and figure is to right of the invention It is required that being described in further detail, it is to be understood that the following drawings illustrates only certain embodiments of the present invention, therefore not It should be considered as the restriction to range, the modification of anyone limited times made within the scope of the invention as claimed, still at this Within the scope of the claims of invention.
It is to be appreciated that in the description of the present invention, it should be noted that the orientation of the instructions such as term " on ", "lower" Or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation usually put Or positional relationship, it is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning It must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.In addition, Term " first ", " second " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
As shown in Figure 1, the present invention provides a kind of engine commutator and varistor laser soldering device embodiment.
The engine commutator and varistor laser soldering device include: that the laser heated to commutator terminal preheats Mechanism 1 and the laser spray welding mechanism 2 that soldered ball is sprayed to preheating commutator terminal, and coordinate laser preheating mechanism 1 and laser The controller 3 that surfacing mechanism 2 works.
Specifically, the laser preheating mechanism heats object using laser mode, it is such as existing using the prior art Some lasers are heated.The laser spray welding mechanism is not that this programme improves main points, can be using the prior art come real It is existing, details are not described herein its principles and structure.The controller can be using Programmable logical controllers such as single-chip microcontroller or MCU The control process of device, the controller can control purpose by the control software realization of write-in according to function accordingly, control Process or software be not this programme improve main points, realized using the prior art, no longer specifically repeat herein its working principle and Structure.
When work, under the control of controller 3, first heated by 1 commutator terminal of laser preheating mechanism, the temperature of heating Degree is determined according to the data of material property and test acquisition, then the weldering that will be melted by laser heating by laser spray welding mechanism 2 Ball is ejected on the commutator terminal of heating, and the soldered ball of the heating can form infiltration with commutator terminal and be combined, the soldered ball of heating In flow-like, in the appropriate situation of soldered ball, also infiltration can be formed with the pad being located at below commutator terminal and be combined, so that Pad is electrically connected with the formation of commutator terminal.
Since commutator terminal is by preheating, energy dissipation is slower when welding, and the temperature of soldered ball can be reduced, to keep away Exempt from not infiltrating with terminal when temperature is lower, pad is separated with ceramic base when temperature is higher, i.e., can with terminal infiltrate and It separates pad with ceramic base, reduces welding procedure difficulty.Simultaneously because the quality error of each soldered ball is small, and solder joint uniformly divides It is distributed in around rotor shaft, when using laser spray welding, each quality of welding spot can be prevented, which to be unevenly distributed, causes rotor stress uneven Weighing apparatus, prolongs the service life.
Simultaneously because soldered ball does not need scaling powder, do not need to clear up scaling powder after the completion of welding yet, improves and produce Product production efficiency, it is more environmentally-friendly.
In the present embodiment, it can be equipped with the removing surface mechanism (attached drawing cleared up commutator face as needed Do not indicate), since there may be oxide layer or dusts before welding for commutator face, can will be commutated by removing surface mechanism Device terminal surfaces oxide layer or dust removal, it is more stable and reliable after welding in this way.The removing surface mechanism includes that cleaning brush is (attached Figure do not indicate) and driving cleaning brush and commutator be rotatablely connected driving part (attached drawing does not indicate), the driving part To be that motor is also possible to other component, driving cleaning brush is rotated around commutator, can also be fixed with cleaning brush, driving commutation Device rotation, is specifically implemented using which kind of mode as needed.
The removing surface mechanism can also include the blower mechanism to the commutator removal clast after cleaning brush cleaning, should The blower that blower mechanism is equipped with tuyere and connect with tuyere, the clast cleared up by the blower mechanism from commutator face are clear Reason is clean.The blower can be realized using the prior art, be repeated no more.
The engine commutator and varistor laser soldering device can also include the collecting mechanism that clast is collected, Clast is avoided to pollute environment.The collecting mechanism includes being equipped with the collector of collecting chamber and being set to collector to collect equipped with negative pressure Mouthful, and the negative pressure packaging member being connect with negative pressure collection port.The negative pressure packaging member can be with vacuum pump or fan etc..Work When, the clast of commutator face is blown afloat by the blower mechanism, the clast that negative pressure will be blown afloat is generated under collecting mechanism effect It is drawn into collecting chamber, can be dispelled to avoid cleared of debris, pollute environment.
The present invention also provides a kind of engine commutators and varistor laser soldering device as shown in Figure 2.The motor commutation Device and varistor laser soldering device include the laser 4 of laser spray welding mechanism 2 and variable power, and control laser spray welding The controller 3 of 4 co-ordination of laser of mechanism 2 and variable power, other structures apply a structure using above-mentioned, specifically no longer superfluous It states.
The laser 4 of the variable power refers to can export different laser function respectively according to welding material characteristic difference The soldered ball temperature that rate, i.e. surfacing spray twice is different, wherein the soldered ball temperature sprayed each time is higher, when unit irradiation time When, the first time power of soldered ball laser irradiation is larger, and the temperature of second of soldered ball laser irradiation is lower than for the first time, because for the first time Higher to soldered ball temperature requirement when soldered ball is ejected on pad, second of soldered ball sprays on parallel operation end, thermally conductive fast, Ke Yiti High soldered ball temperature, this can make the electrical connection of soldered ball formation twice, realize welding.When due to requiring low pad to welding temperature Using lower laser output power, the temperature of soldered ball is reduced, to connection can be infiltrated with pad and make the weldering of silvery Disk is separated with ceramic base;Output power higher laser is used at second, is infiltrated second of soldered ball and commutator terminal and is connected It connects while the solder joint formed with first time soldered ball is connect, i.e., can be infiltrated with terminal and separate pad with ceramic base, dropped Low welding procedure difficulty.Simultaneously because the quality error of each soldered ball is small, and solder joint is uniformly distributed in around rotor shaft, is used When laser spray welding, each quality of welding spot can be prevented, which to be unevenly distributed, leads to rotor force unbalance, prolongs the service life.
In the present embodiment, it can be equipped with the removing surface mechanism (attached drawing cleared up commutator face as needed Do not indicate), since there may be oxide layer or dusts before welding for commutator face, can will be commutated by removing surface mechanism Device terminal surfaces oxide layer or dust removal, it is more stable and reliable after welding in this way.The removing surface mechanism includes that cleaning brush is (attached Figure do not indicate) and driving cleaning brush and commutator be rotatablely connected driving part (attached drawing does not indicate), the driving part To be that motor is also possible to other component, driving cleaning brush is rotated around commutator, can also be fixed with cleaning brush, driving commutation Device rotation, is specifically implemented using which kind of mode as needed.
The removing surface mechanism can also include the blower mechanism to the commutator removal clast after cleaning brush cleaning, should The blower that blower mechanism is equipped with tuyere and connect with tuyere, the clast cleared up by the blower mechanism from commutator face are clear Reason is clean.The blower can be realized using the prior art, be repeated no more.
The engine commutator and varistor laser soldering device can also include the collecting mechanism that clast is collected, Clast is avoided to pollute environment.The collecting mechanism includes being equipped with the collector of collecting chamber and being set to collector to collect equipped with negative pressure Mouthful, and the negative pressure packaging member being connect with negative pressure collection port.The negative pressure packaging member can be with vacuum pump or fan etc..Work When, the clast of commutator face is blown afloat by the blower mechanism, the clast that negative pressure will be blown afloat is generated under collecting mechanism effect It is drawn into collecting chamber, can be dispelled to avoid cleared of debris, pollute environment.
As shown in figure 3, the present invention also provides a kind of engine commutators and varistor method for laser welding embodiment process Schematic diagram, including,
Step S10, first time surfacing step, first irradiating the first soldered ball with the first energy laser makes to be shone by the first energy laser The first melt solder balls are penetrated, and spray the first soldered ball of the fusing to pad solder joint, are connect with pad;
Step S11, second of surfacing step are welded in first time surfacing step, then with the second energy laser irradiation second Ball makes to irradiate the second melt solder balls by the second energy laser, and sprays the second soldered ball of the fusing to commutator terminal solder joint, It connect solder joint that commutator terminal and the first soldered ball are formed or pad, wherein the energy of first energy laser is less than The energy of two energy lasers.
Specifically, the temperature of first melt solder balls is higher than the fusion temperature of the second melt solder balls.Due to surfacing two The soldered ball temperature of secondary ejection is different, wherein the soldered ball temperature sprayed each time is higher, when unit irradiation time, first time soldered ball The power of laser irradiation is larger, and the temperature of second of soldered ball laser irradiation is lower than for the first time, because first time soldered ball is ejected into weldering When on disk, to soldered ball temperature requirement compared with cannot be excessively high;Second of soldered ball sprays on parallel operation end, thermally conductive fast, and soldered ball can be improved Temperature, this can make the electrical connection of soldered ball formation twice, realize welding.
The temperature of first time soldered ball is low when due to requiring low pad to welding temperature, can be infiltrated with pad connection and The pad of silvery will not be made to separate with ceramic base;Second of soldered ball temperature is high, and pad and pottery can be infiltrated and made with terminal The separation of porcelain base, reduces welding procedure difficulty.Simultaneously because the quality error of each soldered ball is small, and solder joint is uniformly distributed in rotor and turns Around axis, when using laser spray welding, each quality of welding spot can be prevented, which to be unevenly distributed, leads to rotor force unbalance, extends and uses Service life.
As needed, the removing surface step includes that will connect in cleaning brush and engine commutator and varistor surface Touching, rotary electric machine commutator and varistor or cleaning brush form cleaning brush with varistor surface with engine commutator and rub Contact is wiped, until engine commutator is separated with varistor surface oxide layer.
When due to only clearing up by cleaning brush, it is only capable of removing the oxide layer on its surface, what is generated in removal process is broken Bits can not be cleared up, and be liable to stick to commutator, especially in commutator terminal surfaces, influence welding stability.The surface Cleanup step further includes being blown with gas to engine commutator and varistor surface, and oxide layer clast is cleaned out, is completed Removing surface.
As shown in figure 4, the present invention also provides a kind of engine commutators and varistor method for laser welding, including,
Step S21 first preheats it with the first energy laser irradiation commutator solder terminal, makes by first laser irradiation Commutator terminal temperature increases;
Step S22, then the soldered ball with the irradiation of the second energy laser for welding, make the soldered ball irradiated by the second energy laser Fusing, and spray the soldered ball of the fusing to commutator terminal, it connect terminal with pad.
Specifically, the energy of first energy laser is less than the energy of the second energy laser, i.e., under unit power, One energy laser power is less than the second energy laser power.The temperature of first melt solder balls of the fusing is higher than the second soldered ball temperature The fusion temperature of degree.
Weldering is sprayed due to first using the first energy laser to preheat thermally conductive faster commutator terminal, then to terminal Ball, soldered ball temperature at this time can be adapted to pad, and when so both can be lower because of temperature, welding leaching can not be formed with terminal Profit, and can be infiltrated with pad solder, while silver pad will not be caused to separate with ceramic base.Can with terminal infiltrate and Pad can be made to separate with ceramic base, reduce welding procedure difficulty.Simultaneously because the quality error of each soldered ball is small, and solder joint is uniform It is distributed in around rotor shaft, when using laser spray welding, each quality of welding spot can be prevented, which to be unevenly distributed, leads to rotor stress not Balance, prolongs the service life.
As needed, the removing surface step includes that will connect in cleaning brush and engine commutator and varistor surface Touching, rotary electric machine commutator and varistor or cleaning brush form cleaning brush with varistor surface with engine commutator and rub Contact is wiped, until engine commutator is separated with varistor surface oxide layer.
The engine commutator and varistor method for laser welding further include carrying out clearly to commutator face before welding The cleanup step of reason.The removing surface step includes that will contact in cleaning brush with engine commutator with varistor surface, is rotated Engine commutator and varistor or cleaning brush make cleaning brush and engine commutator and varistor surface form CONTACT WITH FRICTION, Until engine commutator is separated with varistor surface oxide layer.
When due to only clearing up by cleaning brush, it is only capable of removing the oxide layer on its surface, what is generated in removal process is broken Bits can not be cleared up, and be liable to stick to commutator, especially in commutator terminal surfaces, influence welding stability.The surface Cleanup step further includes being blown with gas to engine commutator and varistor surface, and oxide layer clast is cleaned out, is completed Removing surface.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations;Although with reference to the foregoing embodiments Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation Technical solution documented by example is modified or equivalent replacement of some of the technical features, and these are modified or replace It changes, and also departs from the spirit and scope of the technical scheme of various embodiments of the present invention the essence of corresponding technical solution.

Claims (10)

1. engine commutator and varistor laser soldering device, which is characterized in that including laser spray welding mechanism and variable power Laser, and control laser spray welding mechanism and variable power laser co-ordination controller.
2. engine commutator and varistor laser soldering device according to claim 1, which is characterized in that the motor changes It further include the removing surface mechanism cleared up commutator face to device and varistor laser soldering device.
3. engine commutator and varistor laser soldering device according to claim 1, which is characterized in that the surface is clear Reason mechanism includes the driving part of cleaning brush and driving cleaning brush and commutator rotation connection.
4. engine commutator and varistor laser soldering device according to claim 3, which is characterized in that the surface is clear Reason mechanism further includes the blower mechanism to the commutator removal clast after cleaning brush cleaning, which is equipped with tuyere and and wind The blower of mouth connection.
5. engine commutator and varistor laser soldering device according to claim 2, which is characterized in that the motor changes To device and the also described engine commutator of varistor laser soldering device and varistor laser soldering device further include clast into The collecting mechanism that row is collected, the collecting mechanism include the collector equipped with collecting chamber and negative pressure collection port set on collector, with And the negative pressure packaging member being connect with negative pressure collection port.
6. a kind of engine commutator and varistor method for laser welding, including,
First it is preheated with first laser irradiation commutator solder terminal, makes the commutator terminal temperature liter irradiated by first laser It is high;
Soldered ball with the irradiation of the second energy laser for welding again, makes the melt solder balls irradiated by the second energy laser, and make this The soldered ball of fusing is sprayed to commutator terminal, connect terminal with pad.
7. engine commutator and varistor method for laser welding according to claim 6, which is characterized in that first weldering The temperature of ball fusing is higher than the fusion temperature of the second soldered ball.
8. engine commutator and varistor method for laser welding according to claim 7, which is characterized in that the motor changes It further include the removing surface step cleared up before welding commutator face to device and varistor method for laser welding.
9. engine commutator and varistor method for laser welding according to claim 8, which is characterized in that the surface is clear Reason step includes that will contact in cleaning brush with engine commutator surface, and rotary electric machine commutator or cleaning brush make cleaning brush and electricity Machine commutator face forms CONTACT WITH FRICTION, until engine commutator surface oxide layer separates.
10. engine commutator and varistor method for laser welding according to claim 9, which is characterized in that the surface Cleanup step further includes being blown with gas to engine commutator surface, and oxide layer clast is cleaned out, removing surface is completed.
CN201811504879.8A 2018-12-10 2018-12-10 Laser welding device and method for motor commutator and piezoresistor Active CN109365937B (en)

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CN201811504879.8A CN109365937B (en) 2018-12-10 2018-12-10 Laser welding device and method for motor commutator and piezoresistor

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CN201811504879.8A CN109365937B (en) 2018-12-10 2018-12-10 Laser welding device and method for motor commutator and piezoresistor

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CN109365937A true CN109365937A (en) 2019-02-22
CN109365937B CN109365937B (en) 2023-01-20

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