CN109352111A - The welding method and structure of electric machine end ring and conducting bar - Google Patents
The welding method and structure of electric machine end ring and conducting bar Download PDFInfo
- Publication number
- CN109352111A CN109352111A CN201811204119.5A CN201811204119A CN109352111A CN 109352111 A CN109352111 A CN 109352111A CN 201811204119 A CN201811204119 A CN 201811204119A CN 109352111 A CN109352111 A CN 109352111A
- Authority
- CN
- China
- Prior art keywords
- conducting bar
- end ring
- groove
- welding
- electric machine
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- 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
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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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/002—Soldering by means of induction heating
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The welding method and structure of electric machine end ring and conducting bar, including end ring and conducting bar, it is characterised in that processed on end ring end face according to the size of conducting bar end with the one-to-one groove of conducting bar, then be welded on conducting bar is corresponding with groove on end ring.The area of present invention reduction end ring upper groove, solder is limited in single groove in welding, the fusing and solidification for guaranteeing solder in welding process are limited at always in single groove, the dosage that silver solder and solder flux can be effectively reduced reduces the cost of welding, guarantees that conducting bar is circumferentially evenly spaced on along end ring, the positioning of conducting bar welding position is simple clear, without manually carrying out spacing adjustment, the difficulty of welding operation is effectively reduced, improves the welding efficiency and welding quality of end ring and conducting bar.
Description
Technical field
The present invention relates to the welding methods and structure of a kind of electric machine end ring and conducting bar, the weldering for electric machine end ring and conducting bar
It connects, belongs to technical field of motor manufacture.
Background technique
Rotor is also the rotary part in motor, and motor is made of rotor and stator two parts, it is for realizing
The conversion equipment of electric energy and mechanical energy and mechanical energy and electric energy, rotor are divided into motor rotor and generator amature, motor
Rotor mostly uses cagelike structure, in this way convenient for rotation.
The soldering of end ring and rotor bar is one in motor production procedure in the rotor manufacturing process of cagelike structure
The quality of a important link, brazing quality directly influences the performance parameter of motor.In order to guarantee product quality, pond is generallyd use
Slot type end end ring braze-welded structure, i.e., open annular groove, then motor rotor conducting bar is put into annular groove and is welded on end ring, needs
The silver solder and brazing flux to be filled is relatively more, and solder use cost is high.
The existing patent document welded in the prior art in relation to end ring and conducting bar retrieved is as follows:
1, the enhanced traction electric machine rotor of CN201610162802- conducting bar end ring welding structure；
2, the end ring of CN201410851582- frequency control motor rotor and conducting bar assembling structure；
3, the end ring of CN201310257851- rotor and conducting bar method for welding；
4, the welding structure of CN201220605295- a kind of conductor bars for dynamoelectric machines and end ring；
5, the anticracking welding method and anticracking soldered fitting of CN201510966092- motor rotor end ring and conducting bar；
6, a kind of shaftless rotor of CN201720114898-；
7, a kind of cagelike structure of rotor of CN201721472653-.
End ring and the defect of conducting bar welding technique are in the prior art:
1, the silver solder and brazing flux for needing to fill are relatively more, and solder use cost is high.
2, conducting bar and the vertical precision of end face are difficult to ensure that welding quality need to be improved.
3, conducting bar quantity is more, and the interval in annular groove is difficult to accurately control, and welding operation difficulty is larger.
Summary of the invention
The welding method and structure of electric machine end ring and conducting bar provided by the invention reduce the dosage of silver solder and solder flux, drop
Low welding cost positions the welding position of every conducting bar, reduces welding operation difficulty, guarantees that conducting bar is vertical with end face
Precision improves welding quality.
In order to achieve the above objectives the technical solution adopted by the present invention is that:
The welding method of electric machine end ring and conducting bar, including end ring and conducting bar, it is characterised in that held according to the size of conducting bar end
Processed on ring end face with the one-to-one groove of conducting bar, then be welded on conducting bar is corresponding with groove on end ring.
Preferably, by the Pocket Machining at shape corresponding with the cross section of conducting bar end, and groove and conducting bar
End is clearance fit.
Preferably, the gap between the conducting bar end and groove side is 0.5 ~ 3mm, and the depth of the groove is
3~7mm。
Preferably, by Pocket Machining rectangularity or trapezoidal, slope surface is processed at least one side of groove, it will be with slope
It is processed into vertical plane in the opposite side in face.
Preferably, by the groove design at along end ring radial distribution, by conducting bar be used to weld one end end face and/or
It is processed into rough surface in each face of groove.
Preferably, groove is processed on end ring using mach mode, the both ends of groove along its length have and move back
Knife circular arc manufactures end ring by the way of forging, forms groove on one end end face of end ring.
Preferably, conducting bar is welded on end ring using induction brazing technique.
Preferably, conducting bar " is welded in a groove to " step using induction brazing technique are as follows:
S1: checking and adjusts the levelness of the load coil of induction welding machine, makes the water for incuding the load coil of welding machine
Pingdu is less than 0.1%；
S2: end ring is horizontally placed on the load coil of induction welding machine, detects and adjust the levelness of end ring, makes end ring
Levelness is less than 0.1%；
S3: in a groove by the silver soldering piece of welding and solder flux tiling；
S4: conducting bar and groove are corresponded and cooperated, one end of conducting bar is placed in groove；
S5: it is powered to the load coil of induction welding machine, end ring is heated, silver soldering piece and solder melts are made, until leading
End solid welding is in a groove.
Preferably, the step S is specifically referred to: conducting bar end being placed in groove first, passes through measuring for verticality work
Tool detects the verticality between end ring and conducting bar and adjusts the verticality between end ring and conducting bar, until the verticality between end ring and conducting bar
Conducting bar is pressed on end ring less than 0.1%, then with pressing member.
Using the electric machine end ring of the welding method of above-described electric machine end ring and conducting bar and the welding structure of conducting bar, including
End ring and conducting bar, it is characterised in that processed on end ring end face according to the size of conducting bar end recessed correspondingly with conducting bar
Slot, conducting bar is corresponding with groove to be welded on end ring.
The beneficial effects of the present invention are:
1, the present invention is by the annular groove of end ring end face in the prior art, be changed to the one-to-one groove of conducting bar, in a groove
A conducting bar is welded, the area of end ring upper groove is reduced, solder is limited in single groove in welding, guarantees welding process
The fusing and solidification of middle solder are limited at always in single groove, can be effectively reduced the dosage of silver solder and solder flux, be reduced weldering
The cost connect.
2, conducting bar and groove are corresponded, i.e., the welding position of every conducting bar are positioned, makes conducting bar uniform intervals,
Spacing between adjacent conducting bar is of substantially equal, guarantees that conducting bar is circumferentially evenly spaced on along end ring, and the positioning of conducting bar welding position is simple
It is clear, carry out spacing adjustment without artificial, be effectively reduced the difficulty of welding operation, i.e., the welding efficiency of raising end ring and conducting bar and
Welding quality.
3, the welding of auspicious ring and conducting bar is realized, using induction brazing technique by adjusting the load coil of induction welding machine
Levelness, guarantee end ring welding when be in a horizontal state, by pressing member by conducting bar be pressed on end ring guarantee welding process in
Conducting bar remains vertical with end face, improves the welding precision of end ring and conducting bar, improves welding quality.
4, groove and conducting bar are clearance fit, and slope surface is processed at least one side of groove, will be opposite with slope surface
It is processed into vertical plane in side, it is possible to increase the effective area of slope surface side-walls weld seam reduces the concentration accumulation of Han Seams, to reduce weldering
Shrinkage stress of the connector in process of setting, so that the contraction crack and crackle tendency of welding point are reduced, further through vertical
The design of side prevents the volume of groove excessive, and solder is caused to waste, when conducting bar and groove cooperate by conducting bar to groove mesoslope
Face side is close, can make the even weld distribution of conducting bar surrounding after solder solidification, improve the soldering reliability of conducting bar and end ring.
Detailed description of the invention
Fig. 1 is that reeded end ring structure schematic diagram is opened in upper surface.
Fig. 2 is sectional view along A-A in Fig. 1.
Specific embodiment
1 to 2 pair of the embodiment of the present invention elaborates with reference to the accompanying drawing.
The welding method of electric machine end ring and conducting bar, including end ring 1 and conducting bar, it is characterised in that according to the size of conducting bar end
Processed on 1 end face of end ring with the one-to-one groove 11 of conducting bar, then be welded on conducting bar is corresponding with groove 11 on end ring 1.
As shown in Figure 1, groove on end ring be with conducting bar single slot correspondingly, rather than the annular groove of whole circle,
A conducting bar is welded in one groove, reduces the area of end ring upper groove, and solder is limited to single groove in welding
In, guarantee that the fusing of solder in welding process and solidification are limited at always in single groove, silver solder and weldering can be effectively reduced
The dosage of agent reduces the cost of welding.And correspond conducting bar and groove, i.e., the welding position of every conducting bar is determined
Position, is uniformly distributed conducting bar, and the spacing between adjacent conducting bar is of substantially equal, guarantees that conducting bar is circumferentially evenly spaced on along end ring, leads
The positioning of welding position is simple clear, carries out spacing adjustment without artificial, the difficulty of welding operation is effectively reduced, is i.e. raising end ring
With the welding efficiency and welding quality of conducting bar.
Wherein, the groove 11 is processed into shape corresponding with the cross section of conducting bar end, and groove 11 with lead
End is clearance fit.According to the shape of conducting bar end, the groove 11 of respective shapes is processed, according to the size of conducting bar end
The groove 11 of corresponding size, conducting bar and 11 clearance fit of groove are processed, can be met conducting bar solid welding through solder in groove 11
In, prevented also from because groove 11 it is oversized, waste solder.
Wherein, the gap between 11 side of the conducting bar end and groove is 0.5 ~ 3mm, the depth of the groove 11
For 3 ~ 7mm.Groove 11 is processed into rectangularity or trapezoidal, slope surface is processed at least one side of groove 1, it will be with slope surface phase
Pair side be processed into vertical plane.
Slope surface is oppositely arranged with vertical plane in 11 side of groove, can be increased the effective area of slope surface side-walls weld seam, be subtracted
The concentration of little Han Seams is accumulated, so that shrinkage stress of the welding point in process of setting is reduced, to reduce the receipts of welding point
Draw line and crackle tendency prevent the volume of groove 11 excessive, cause solder to waste, in conducting bar further through the design of vertical side
By conducting bar, into groove, slope surface side is close when cooperating with groove 11, can make the even weld point of conducting bar surrounding after solder solidification
Cloth improves the soldering reliability of conducting bar and end ring.
Wherein, the groove 1 is designed to along 1 radial distribution of end ring, it is equal convenient for the processing of groove 11, and circumferentially
Even distribution；Conducting bar 1 is used to weld the end face of one end and/or rough surface is processed into each face of groove, when welding, passes through capillary effect
On the rough surface that solder sucking conducting bar is connect with end ring, reinforce the firmness of welding, is further able to reduce the dosage of solder, drop
Low cost.
Wherein, groove 11 is processed on end ring 1 using mach mode, the both ends of groove 11 along its length have
Withdrawing circular arc 12 manufactures end ring 1 by the way of forging, and groove 11 is formed on one end end face of end ring 1.Machining mode
Groove 11 can be formed to processing is carried out on molded end ring, forging method can directly produce the new end ring with fluted 11.
Wherein, conducting bar is welded on end ring 1 using induction brazing technique.Induction brazing technology, heating speed is fast, solder
It is heated evenly, the welding efficiency and quality of end ring and conducting bar can be effectively improved.
" conducting bar is welded in groove 11 using induction brazing technique " step are as follows:
S1: checking and adjusts the levelness of the load coil of induction welding machine, makes the water for incuding the load coil of welding machine
Pingdu guarantees that end ring 1 is placed on the levelness on load coil less than 0.1%；
S2: end ring 1 is horizontally placed on the load coil of induction welding machine, detects and adjust the levelness of end ring 11, makes to hold
The levelness of ring 11 is less than 0.1%, by the detection and adjustment to 11 levelness of end ring, guarantees that end ring is in water in the welding process
Flat setting；
S3: the silver soldering piece of welding and solder flux are laid in groove 11, prevent conducting bar from tilting；
S4: conducting bar and groove 11 are corresponded and cooperated, one end of conducting bar is placed in groove 11；
S5: being powered to the load coil of induction welding machine, end ring 1 heated, silver soldering piece and solder melts are made, until
The solid welding of conducting bar end makes silver soldering piece and solder flux thermally equivalent be rapidly heated fusing in groove 11 by way of induction heating,
The used time of welding is short, high-efficient, and reliability is higher.
The step S4 is specifically referred to: conducting bar end being placed in groove 11 first, is examined by verticality detection tool
The verticality surveyed between end ring and conducting bar simultaneously adjusts the verticality between end ring and conducting bar, until the verticality between end ring and conducting bar is less than
0.1%, then conducting bar is pressed on end ring 1 with pressing member, end ring 1 is compressed by pressing member and is guaranteed in silver soldering piece and solder melts
During solid welding, conducting bar is vertical with end ring holding always, prevents conducting bar from inclining because of silver soldering piece and the character of solder flux change due to
Tiltedly, soldering reliability is improved.
The present invention also protects the electric machine end ring and conducting bar using the welding method of above-described electric machine end ring and conducting bar
Welding structure, including end ring 1 and conducting bar, it is characterised in that process and lead on 1 end face of end ring according to the size of conducting bar end
The one-to-one groove 11 of item, conducting bar is corresponding with groove 11 to be welded on end ring 1.
A conducting bar is welded in the welding structure of above-described electric machine end ring and conducting bar in single groove, is reduced on end ring
The area of groove can effectively reduce the dosage of silver solder and solder flux, reduce the cost of welding.And it is conducting bar and groove one is a pair of
It answers, i.e., the welding position of every conducting bar is positioned, make conducting bar uniform intervals, the spacing between adjacent conducting bar is of substantially equal, protects
Card conducting bar is circumferentially evenly spaced on along end ring, and the positioning of conducting bar welding position is simple clear, carries out spacing adjustment without artificial, has
Effect reduces the difficulty of welding operation, that is, improves the welding efficiency and welding quality of end ring and conducting bar, make the welding of end ring and conducting bar
Serviceability of structures is higher, and the service life is longer.
It is completely described in conjunction with technical solution of the attached drawing to the embodiment of the present invention above, it should be noted that described
Embodiment be only a part of the embodiments of the present invention.Based on the embodiments of the present invention, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall within the protection scope of the present invention.
Claims (10)
1. the welding method of electric machine end ring and conducting bar, including end ring (1) and conducting bar, it is characterised in that according to the size of conducting bar end
Processed on end ring (1) end face with the one-to-one groove of conducting bar (11), then be welded on end for conducting bar is corresponding with groove (11)
On ring (1).
2. the welding method of electric machine end ring according to claim 1 and conducting bar, it is characterised in that by the groove (11)
It is processed into shape corresponding with the cross section of conducting bar end, and groove (11) and conducting bar end are clearance fit.
3. the welding method of electric machine end ring according to claim 2 and conducting bar, it is characterised in that the conducting bar end with
Gap between groove (11) side is 0.5 ~ 3mm, and the depth of the groove (11) is 3 ~ 7mm.
4. the welding method of electric machine end ring according to claim 2 and conducting bar, it is characterised in that groove (11) to be processed into
Rectangle is trapezoidal, and slope surface is processed at least one side of groove (1), the side opposite with slope surface is processed into vertical
Face.
5. the welding method of electric machine end ring according to claim 4 and conducting bar, it is characterised in that set the groove (1)
It counts into end face and/or each face of groove along end ring (1) radial distribution, by conducting bar (1) for welding one end and is processed into rough surface.
6. the welding method of electric machine end ring according to claim 4 and conducting bar, it is characterised in that use mach mode
It is processed on end ring (1) groove (11), the both ends of groove (11) along its length are with withdrawing circular arc (12) or using forging
Mode manufacture end ring (1), on one end end face of end ring (1) formed groove (11).
7. the welding method of electric machine end ring according to claim 1 and conducting bar, it is characterised in that use induction brazing technique
Conducting bar is welded on end ring (1).
8. the welding method of electric machine end ring according to claim 7 and conducting bar, it is characterised in that " use induction brazing technique
Conducting bar is welded in groove (11) " step are as follows:
S1: checking and adjusts the levelness of the load coil of induction welding machine, makes the water for incuding the load coil of welding machine
Pingdu is less than 0.1%；
S2: end ring (1) being horizontally placed on the load coil of induction welding machine, detect and adjust the levelness of end ring (11),
Make the levelness of end ring (11) less than 0.1%；
S3: the silver soldering piece of welding and solder flux are laid in groove (11)；
S4: conducting bar and groove (11) are corresponded and cooperated, one end of conducting bar is placed in groove (11)；
S5: it is powered to the load coil of induction welding machine, end ring (1) is heated, makes silver soldering piece and solder melts, directly
To the solid welding of conducting bar end in groove (11).
9. the welding method of electric machine end ring according to claim 8 and conducting bar, it is characterised in that the step S4 is specific
Refer to: conducting bar end being placed in groove (11) first, the verticality between end ring and conducting bar is detected by verticality detection tool
And the verticality between end ring and conducting bar is adjusted, until verticality between end ring and conducting bar is less than 0.1%, then with pressing member by conducting bar
It is pressed on end ring (1).
10. using the electric machine end ring and conducting bar of the welding method of the described in any item electric machine end rings of claim 1 to 9 and conducting bar
Welding structure, including end ring (1) and conducting bar, it is characterised in that processed on end ring (1) end face according to the size of conducting bar end
With the one-to-one groove of conducting bar (11), conducting bar is corresponding with groove (11) to be welded on end ring (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811204119.5A CN109352111A (en) | 2018-10-16 | 2018-10-16 | The welding method and structure of electric machine end ring and conducting bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811204119.5A CN109352111A (en) | 2018-10-16 | 2018-10-16 | The welding method and structure of electric machine end ring and conducting bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109352111A true CN109352111A (en) | 2019-02-19 |
Family
ID=65349242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811204119.5A Pending CN109352111A (en) | 2018-10-16 | 2018-10-16 | The welding method and structure of electric machine end ring and conducting bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN109352111A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109834354A (en) * | 2019-03-28 | 2019-06-04 | 哈尔滨电气动力装备有限公司 | The medicine core method for welding and its tooling bracket of synchronous motor carbon steel solid magnetic pole and red copper damping ring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109834354A (en) * | 2019-03-28 | 2019-06-04 | 哈尔滨电气动力装备有限公司 | The medicine core method for welding and its tooling bracket of synchronous motor carbon steel solid magnetic pole and red copper damping ring |
| CN109834354B (en) * | 2019-03-28 | 2023-12-26 | 哈尔滨电气动力装备有限公司 | Flux-cored brazing method for carbon steel solid magnetic pole and red copper damping ring of synchronous motor and tooling support thereof |
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