CN103887934A - Finishing method of electric spindle squirrel cage rotor - Google Patents

Finishing method of electric spindle squirrel cage rotor Download PDF

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Publication number
CN103887934A
CN103887934A CN201410016350.7A CN201410016350A CN103887934A CN 103887934 A CN103887934 A CN 103887934A CN 201410016350 A CN201410016350 A CN 201410016350A CN 103887934 A CN103887934 A CN 103887934A
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Prior art keywords
rotor
cage
cage bar
previous step
main shaft
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CN201410016350.7A
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CN103887934B (en
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赵松辰
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Luoyang Bearing Research Institute Co Ltd
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Luoyang Bearing Science and Technology Co Ltd
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Abstract

The invention provides a finishing method of an electric spindle squirrel cage rotor, relating to the technical field of an electric spindle. The method comprises a step of punching cage bar through holes (3) and core shaft holes (4) on rotor pieces (2), a step of overlapping the rotor pieces (2) at the back part of a core shaft and then fixing the rotor pieces by using nuts, a step of carrying out deburring, cleaning and shaping to obtain the laminated rotor pieces (2), and a step of processing the cage bars and welding the cage bars and two ends of a rotor to obtain the squirrel cage rotor. According to the method, after the finishing of the squirrel cage rotor and the cage bar through holes of the squirrel cage rotor, vibration is not generated in an ultra-high-speed operation, the normal operation performance is ensured, and favorable technical conditions are provided for the development of an ultra-high-speed electric spindle and the improvement of working efficiency.

Description

A kind of method for fine finishing of electric main shaft cage rotor
[technical field]the invention belongs to electric spindle technology field, especially relate to a kind of method for fine finishing of ultrahigh-speed electricity main shaft cage rotor.
[background technology]
Known, when the linear velocity of the cage rotor cage bar of ultrahigh-speed electricity main shaft exceed cast-aluminum rotor can permissible value time, electricity main shaft just can not run well, open slot cage bar can damage because of friction the endoporus of stator, thereby cause open slot cage bar to be scrapped, and closed slot cage bar is understood the disequilibrium because producing drum bar or raised line, electricity main shaft will produce vibration and cisco unity malfunction, in order to adapt to the running requirements of ultrahigh-speed, must adopt the copper material cage bar that nonflexible line speed is higher to satisfy the demands, if copper bar cage bar is according to the common way manufacture of wearing cage bar, copper bar second-rate, punching meeting is jagged, and easily dislocation when mounted, if adopt the many cage bar less than cage cylindrical void to manufacture, because gap is larger, when running, can produce larger vibration, can not normally use, if adopt casting to manufacture cage rotor, if temperature control is inhomogeneous, be easy to produce the defects such as oxidation and disconnected bar, in the time producing in enormous quantities, the cost of line cutting is higher, and production efficiency is also lower, is not suitable for producing in enormous quantities.
[summary of the invention]
In order to overcome the deficiency in background technology, the invention provides a kind of method for fine finishing of electric main shaft cage rotor.
In order to realize the object of foregoing invention, the present invention adopts following technical scheme:
A method for fine finishing for electric main shaft cage rotor, comprises punching, laminates rotor sheet, deburring, cleaning, shaping, processing cage bar, skew, welds and obtain cage rotor, and its concrete steps operation is as follows:
(1) punching
The centre of a plurality of rotor sheets is stamped out to the core axle hole 4 of assembling mandrel, beyond the middle part of a plurality of rotor sheets and on the face at edge, bore a hole 3 along a plurality of cage bars of stamping out of even circumferential interval;
(2) laminate rotor sheet
Connect previous step, the necking segment B that nut B is screwed in to mandrel bottom is upper, and plural pieces rotor sheet is overlapped together successively, and the cage bar perforation on the rotor sheet after utilizing labeled slots 1 on rotor sheet outer edge surface to make to laminate is upper and lower corresponding, and nut A is locked on necking segment A;
(3) deburring
Connect previous step, the rotor sheet deburring laminating that previous step is obtained;
(4) clean
Connect previous step, previous step is cleaned with gasoline through the rotor sheet of deburring;
(5) shaping
Connect previous step, pole is rapped in the cage bar perforation laminating on rear rotor sheet, make the unimpeded rear taking-up pole of cage bar perforation after laminating, again clean;
(6) processing cage bar
Connect previous step, use centreless grinding obtains the external diameter of cage bar and the fit clearance of cage bar perforation is 0-5 μ, uses aluminium bar to rap cage bar, and cage bar is knocked in epitrochanterian cage bar perforation;
(7) skew
Connect previous step, will penetrate the rotor sheet high-temperature heating of cage bar, the rotor sheet after heating is struck and presses the labeled slots at rotor sheet edge to carry out skew by personality board;
(8) welding
Connect previous step, short-circuited conducting sleeve is put in the two ends of rotor, and by together with the cage bar piercing welding of the two ends of cage bar and the rotor sheet both ends of the surface after laminating;
(9) obtain cage rotor
Connect previous step, turn on nut A and the nut B at mandrel two ends, take out mandrel, obtain cage rotor.
The method for fine finishing of described electric main shaft cage rotor, the axiality of the core axle hole in described step 1 and the perforation of cage bar is in 2.
The method for fine finishing of described electric main shaft cage rotor, laminates direction for laminating in the same way in described step 2.
The method for fine finishing of described electric main shaft cage rotor, the method for the deburring in described step 3 is pickling, shot-peening or sandblast.
The method for fine finishing of described ultrahigh-speed electricity main shaft cage rotor, in described step 7, the distance of skew is the pitch-row along a cage bar perforation of cage bar perforation circumferencial direction.
The method for fine finishing of described ultrahigh-speed electricity main shaft cage rotor, described step 7 high-temperature heating uses high temperature furnace heating or gas welding heating.
The method for fine finishing of described ultrahigh-speed electricity main shaft cage rotor, the temperature of described step 7 high-temperature heating is 400-600 ℃, be 10-30 minute heating time.
The method for fine finishing of described ultrahigh-speed electricity main shaft cage rotor, the welding method of described step 8 is gas welding or argon arc welding.
Owing to adopting technique scheme, the present invention has following beneficial effect:
The method for fine finishing of electric main shaft cage rotor of the present invention, described method is included in and on rotor sheet 2, stamps out the perforation 3 of cage bar and core axle hole 4, after a plurality of rotor sheets 2 being laminated on to the middle part of mandrel, fixed by nut, rotor sheet 2 after deburring, cleaning, shaping are laminated, through processing cage bar and by the two ends welding of cage bar and rotor, obtain cage rotor; The cage bar of cage rotor of the present invention and the perforation of cage bar not only can not produce vibrations after fine finishining in the time that ultrahigh-speed turns round, and have guaranteed normal behavior in service, increase work efficiency favourable technical conditions are provided for exploitation ultrahigh-speed electricity main shaft.
[accompanying drawing explanation]
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of rotor sheet 2 of the present invention;
In the drawings: 1, labeled slots; 2, rotor sheet; 3, cage bar perforation; 4, core axle hole; 5, mandrel; 6, nut A; 7, nut B; 8, necking segment A; 9, necking segment B.
[embodiment]
Can explain in more detail the present invention by the following examples, disclose object of the present invention and be intended to protect all changes and improvements in the scope of the invention, the present invention is not limited to the following examples:
The method for fine finishing of the electric main shaft cage rotor described in 1 by reference to the accompanying drawings, comprises punching, laminates rotor sheet 2, deburring, cleaning, shaping, processing cage bar, skew, welds and obtain cage rotor, and its concrete steps operation is as follows:
(1) punching
The centre of a plurality of rotor sheets 2 is stamped out to the core axle hole 4 of assembling mandrel, beyond the middle part of a plurality of rotor sheets 2 and on the face at edge, bore a hole 3 along a plurality of cage bars of stamping out of even circumferential interval; Described core axle hole 4 is in 2 with the axiality of cage bar perforation 3;
(2) laminate rotor sheet 2
Connect previous step, the necking segment B9 that nut B7 is screwed in to mandrel 5 bottoms is upper, and plural pieces rotor sheet 2 is overlapped together successively, laminates direction for laminating in the same way; Cage bar perforation on rotor sheet 2 after utilizing labeled slots 1 on rotor sheet 2 outer edge surfaces to make to laminate correspondence 3 Shang Xia, is locked at nut A6 on necking segment A8;
(3) deburring
Connect previous step, the rotor sheet laminating 2 deburrings that previous step is obtained; The method of deburring is pickling, shot-peening or sandblast;
(4) clean
Connect previous step, previous step is cleaned through the rotor sheet 2 use gasoline of deburring;
(5) shaping
Connect previous step, pole is rapped into laminating in cage bar on rear rotor sheet 2 perforation 3, make cage bar after the laminating 3 unimpeded rear taking-up poles of boring a hole, again clean;
(6) processing cage bar
Connect previous step, use centreless grinding obtains the external diameter of cage bar and the fit clearance of cage bar perforation is 0-5 μ, uses aluminium bar to rap cage bar, and cage bar is knocked in epitrochanterian cage bar perforation 3;
(7) skew
Connect previous step, will penetrate rotor sheet 2 high-temperature heatings of cage bar, high-temperature heating uses high temperature furnace heating or gas welding heating; The temperature of high-temperature heating is 400-600 ℃, and be 10-30 minute heating time; Rotor sheet 2 use personality board after heating are struck and pressed the labeled slots 1 at rotor sheet 2 edges to carry out skew; The distance of skew is along the bore a hole pitch-row of cage bar perforation 3 of 3 circumferencial directions of cage bar;
(8) welding
Connect previous step, short-circuited conducting sleeve is put in the two ends of rotor, and by together with the cage bar piercing welding of the two ends of cage bar and rotor sheet 2 both ends of the surface after laminating; Welding method is gas welding or argon arc welding;
(9) obtain cage rotor
Connect previous step, turn on nut A6 and the nut B7 at mandrel 5 two ends, take out mandrel 5, obtain cage rotor.
Implement the method for fine finishing of electric main shaft cage rotor of the present invention, on rotor sheet 2, stamp out the perforation 3 of cage bar and core axle hole 4, a plurality of rotor sheets 2 are laminated on to the necking segment A8 and the necking segment B9 that are separately fixed at mandrel 5 behind the middle part of mandrel 5 by nut A6 and nut B7, laminate direction for laminating in the same way, to after 2 deburrings of the rotor sheet after laminating, clean up with gasoline, use pole to rap in the cage bar perforation 3 laminating on rear rotor sheet 2, make cage bar after the laminating 3 unimpeded rear taking-up poles of boring a hole, again clean with gasoline, then the fit clearance that uses centreless grinding to obtain the external diameter of cage bar and the perforation of cage bar is 0-5 μ, use aluminium bar to rap cage bar, cage bar is knocked in epitrochanterian cage bar perforation, rotor sheet 2 high temperature furnace heating or the gas welding heating 10-30 minute of cage bar will be penetrated, the temperature of heating is 400-600 ℃, rotor sheet 2 use personality board after heating are struck and pressed the labeled slots 1 at rotor sheet 2 edges to carry out skew, the distance of skew is along the bore a hole pitch-row of cage bar perforation 3 of 3 circumferencial directions of cage bar, short-circuited conducting sleeve is put in the two ends of the rotor sheet after skew, and the cage bar perforation of the two ends of cage bar and rotor sheet both ends of the surface is welded together by gas welding or argon arc welding, finally remove nut A6, nut B7 and mandrel, obtain cage rotor, in order to satisfy the demand, cage rotor can be carried out coming into operation after machining, because cage bar is tightly being wrapped by cage cylindrical void, produce and wriggle at the Shi Buhui that runs up, with the demand that guarantees to run up, the cage bar of cage rotor of the present invention and the perforation of cage bar not only can not produce vibrations after fine finishining in the time that ultrahigh-speed turns round, and have guaranteed normal behavior in service, increase work efficiency favourable technical conditions are provided for exploitation ultrahigh-speed electricity main shaft.
The embodiment selecting in this article for open object of the present invention, current think suitable, but will be appreciated that, the present invention is intended to comprise that all belong to all changes and the improvement of the embodiment in this design and the scope of the invention.

Claims (8)

1. a method for fine finishing for electric main shaft cage rotor, comprises punching, laminate rotor sheet (2), deburring, cleaning, shaping, processing cage bar, skew, welds and obtain cage rotor, it is characterized in that: its concrete steps operation is as follows:
(1) punching
The centre of a plurality of rotor sheets 2 is stamped out to the core axle hole (4) of assembling mandrel, beyond the middle part of a plurality of rotor sheets (2) and on the face at edge along a plurality of cage bars perforation of stamping out of even circumferential interval (3);
(2) laminate rotor sheet 2
Connect previous step, by nut B(7) be screwed in the necking segment B(9 of mandrel (5) bottom) on, plural pieces rotor sheet (2) is overlapped together successively, cage bar perforation (3) on rotor sheet (2) after utilizing labeled slots (1) on rotor sheet (2) outer edge surface to make to laminate is corresponding up and down, by nut A(6) be locked at necking segment A(8) on;
(3) deburring
Connect previous step, the rotor sheet laminating (2) deburring that previous step is obtained;
(4) clean
Connect previous step, previous step is cleaned with gasoline through the rotor sheet (2) of deburring;
(5) shaping
Connect previous step, pole is rapped in the cage bar perforation (3) laminating on rear rotor sheet (2), make cage bar perforation (3) the unimpeded rear taking-up pole after laminating, again clean;
(6) processing cage bar
Connect previous step, use centreless grinding obtains the external diameter of cage bar and the fit clearance of cage bar perforation is 0-5 μ, uses aluminium bar to rap cage bar, and cage bar is knocked in epitrochanterian cage bar perforation (3);
(7) skew
Connect previous step, will penetrate rotor sheet (2) high-temperature heating of cage bar, the rotor sheet (2) after heating is struck and presses the labeled slots (1) at rotor sheet (2) edge to carry out skew by personality board;
(8) welding
Connect previous step, short-circuited conducting sleeve is put in the two ends of rotor, and by together with the cage bar piercing welding of the two ends of cage bar and rotor sheet (2) both ends of the surface after laminating;
(9) obtain cage rotor
Connect previous step, turn on the nut A(6 at mandrel (5) two ends) and nut B(7), take out mandrel (5), obtain cage rotor.
2. the method for fine finishing of electric main shaft cage rotor according to claim 1, is characterized in that: the core axle hole (4) in described step 1 is in (2) silk with the axiality of cage bar perforation (3).
3. the method for fine finishing of electric main shaft cage rotor according to claim 1, is characterized in that: in described step (2), laminate direction for laminating in the same way.
4. the method for fine finishing of electric main shaft cage rotor according to claim 1, is characterized in that: the method for the deburring in described step 3 is pickling, shot-peening or sandblast.
5. the method for fine finishing of ultrahigh-speed electricity main shaft cage rotor according to claim 1, is characterized in that: in described step 7, the distance of skew is the pitch-row of the cage bar perforation (3) along cage bar perforation (3) circumferencial direction.
6. the method for fine finishing of ultrahigh-speed electricity main shaft cage rotor according to claim 1, is characterized in that: described step 7 high-temperature heating uses high temperature furnace heating or gas welding heating.
7. the method for fine finishing of ultrahigh-speed electricity main shaft cage rotor according to claim 1, is characterized in that: the temperature of described step 7 high-temperature heating is 400-600 ℃, and be 10-30 minute heating time.
8. the method for fine finishing of ultrahigh-speed electricity main shaft cage rotor according to claim 1, is characterized in that: the welding method of described step 8 is gas welding or argon arc welding.
CN201410016350.7A 2014-04-24 2014-04-24 A kind of method for fine finishing of electro spindle cage rotor Active CN103887934B (en)

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CN201410016350.7A CN103887934B (en) 2014-04-24 2014-04-24 A kind of method for fine finishing of electro spindle cage rotor

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Application Number Priority Date Filing Date Title
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CN103887934A true CN103887934A (en) 2014-06-25
CN103887934B CN103887934B (en) 2016-08-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105305741A (en) * 2015-12-01 2016-02-03 江苏大中电机股份有限公司 Processing method for reducing cutting stress of motor rotor
CN113691085A (en) * 2021-07-06 2021-11-23 中车永济电机有限公司 Method for manufacturing squirrel cage assembly and squirrel cage assembly

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1452293A (en) * 2002-04-15 2003-10-29 乐金电子(天津)电器有限公司 Rotor of squirrel-cage induction motor and making method threrof
CN1627610A (en) * 2003-12-12 2005-06-15 乐金电子(天津)电器有限公司 Cage shaped rotor in motor, and manufacturing method
CN1630169A (en) * 2003-12-18 2005-06-22 荣成市荣佳电机有限公司 Method for making motor rotor
CN101626179A (en) * 2008-07-09 2010-01-13 通用汽车环球科技运作公司 Squirrel-cage rotors and methods of manufacturing same
CN101847913A (en) * 2009-03-24 2010-09-29 通用汽车环球科技运作公司 The die casting of electric rotors
CN102510180A (en) * 2011-11-03 2012-06-20 无锡三鑫压铸有限公司 Method for manufacturing squirrel cage induction motor rotor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1452293A (en) * 2002-04-15 2003-10-29 乐金电子(天津)电器有限公司 Rotor of squirrel-cage induction motor and making method threrof
CN1627610A (en) * 2003-12-12 2005-06-15 乐金电子(天津)电器有限公司 Cage shaped rotor in motor, and manufacturing method
CN1630169A (en) * 2003-12-18 2005-06-22 荣成市荣佳电机有限公司 Method for making motor rotor
CN101626179A (en) * 2008-07-09 2010-01-13 通用汽车环球科技运作公司 Squirrel-cage rotors and methods of manufacturing same
CN101847913A (en) * 2009-03-24 2010-09-29 通用汽车环球科技运作公司 The die casting of electric rotors
CN102510180A (en) * 2011-11-03 2012-06-20 无锡三鑫压铸有限公司 Method for manufacturing squirrel cage induction motor rotor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105305741A (en) * 2015-12-01 2016-02-03 江苏大中电机股份有限公司 Processing method for reducing cutting stress of motor rotor
CN113691085A (en) * 2021-07-06 2021-11-23 中车永济电机有限公司 Method for manufacturing squirrel cage assembly and squirrel cage assembly
CN113691085B (en) * 2021-07-06 2023-07-28 中车永济电机有限公司 Manufacturing method of squirrel cage assembly and squirrel cage assembly

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Effective date of registration: 20180514

Address after: 471000 No. 1 axis research road, Jianxi science and Technology Industrial Park, Luoyang, Henan

Patentee after: Luoyang Bearing Research Institute

Address before: 471039 Fenghua Road 6, hi tech Development Zone, Luoyang, Henan.

Patentee before: Zhouyan Science and Technology Co., Ltd., Luoyang

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