CN210016380U - Assembly equipment for rotor and end cover in brushless motor - Google Patents
Assembly equipment for rotor and end cover in brushless motor Download PDFInfo
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- CN210016380U CN210016380U CN201921147465.4U CN201921147465U CN210016380U CN 210016380 U CN210016380 U CN 210016380U CN 201921147465 U CN201921147465 U CN 201921147465U CN 210016380 U CN210016380 U CN 210016380U
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- brushless motor
- upper die
- end cover
- positioning
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Abstract
The utility model relates to an assembly equipment. The assembling equipment for the rotor and the end cover in the brushless motor comprises a frame, wherein the frame is provided with a lower die and an upper die; the upper die comprises a pressing piece positioned in the center; the upper die is connected with a press-fitting component. The utility model provides an assembly device which can prevent the rotor from moving up and down and precisely control the installation size, thereby effectively ensuring the stability of the brushless motor, having good consistency of motor performance and small variation of the rotor and the end cover in the brushless motor; the technical problems that the rotor of the brushless motor in the prior art moves up and down in the assembling process, and the installation size is uncontrollable, so that the performance of the motor is poor in consistency, poor in stability and large in variation are solved.
Description
Technical Field
The utility model relates to an rigging equipment especially relates to the rigging equipment of rotor and end cover among the brushless motor.
Background
In modern society, brushless motors have been widely used, and basically, brushless motors are composed of a housing, a stator assembly, and a rotor assembly. The stator assembly is installed within the housing and then mated with the stator assembly. During assembly, the installation of the various components can affect the performance of the final brushless motor. But in present installation, the assembly of present industry inner end cover subassembly to rotor subassembly dimensional tolerance is great, and the degree of freedom is great, and the play clearance is big from top to bottom to the rotor, and above problem all can finally lead to brushless motor's performance to go wrong, and poor stability, the variation is big etc..
Disclosure of Invention
The utility model provides an assembly device which can prevent the rotor from moving up and down and precisely control the installation size, thereby effectively ensuring the stability of the brushless motor, having good consistency of motor performance and small variation of the rotor and the end cover in the brushless motor; the technical problems that the rotor of the brushless motor in the prior art moves up and down in the assembling process, and the installation size is uncontrollable, so that the performance of the motor is poor in consistency, poor in stability and large in variation are solved.
The above technical problem of the present invention is solved by the following technical solutions:
the assembling equipment for the rotor and the end cover in the brushless motor comprises a frame, wherein a lower die and an upper die are arranged on the frame, the lower die comprises a positioning seat, and an upright post is arranged outside the positioning seat; the upper die comprises a pressing piece positioned in the center; the upper die is connected with a press-fitting component. And the end cover assembly is supported by the stand column, then the upper die and the lower die move to realize positioning, and after the positioning is finished, the press-fitting component is utilized to carry out press-fitting, so that the end cover assembly and the rotor are installed.
When the equipment is used for assembling the rotor and the end cover in the brushless motor, the assembling steps are as follows:
firstly, a rotor is placed on a lower die, an upright post is installed on the lower die and arranged around the rotor, and an end cover assembly is placed on the upright post;
secondly, the upper die moves downwards until the pressing piece on the end face of the upper die abuts against the upper end face of the end cover assembly;
thirdly, the lower die is lifted until the upper end face of the rotor shaft abuts against the lower inner ring of the bearing in the end cover assembly, so that the rotor shaft and the bearing are pre-installed and positioned;
fourthly, the upper die moves downwards until the central column of the pressing piece on the end surface of the upper die abuts against the upper inner ring of the bearing;
and fifthly, positioning the upper die and the lower die by using the upper end surface and the lower end surface of the bearing as positioning reference surfaces for mounting the end cover assembly and the rotor respectively through the third step and the fourth step, locking the upper die and the lower die after the positioning of the upper die and the lower die is completed, namely determining the relative positions of the end cover assembly and the rotor shaft, starting the press, pressing the end cover assembly downwards, and enabling the rotor shaft to penetrate into the bearing.
Because the upper bearing in the end cover assembly has certain axial float to can influence assembly error, consequently choose for use the upper and lower terminal surface of the inner circle of bearing as the location reference surface, thereby guarantee the assembly effect.
The lower part of the rotor shaft is always supported by a positioning support shaft, so that the centrality and the positioning accuracy of the rotor shaft are ensured.
The pre-pressing installation is firstly carried out between the rotor shaft and the bearing, the relative position of the rotor shaft and the bearing is fixed firstly, then the upper die is positioned, the purpose that when the end cover assembly and the rotor are installed, the upper tool and the lower tool share one reference surface is achieved, the accumulated tolerance during assembly is eliminated, the end cover assembly is pressed downwards by a servo press, the size is controlled to ensure that the size from the upper end surface of the rotor shaft to the upper end surface of the end cover is 2.5mm, the size is precisely controlled, and therefore the play gap of the rotor assembly in the motor is reduced, the motor performance is stable, the uniformity is good, and the service life is stable.
Preferably, the upper die and the lower die are both provided with locking parts, the upper die is provided with an upper pneumatic sliding rail lock, and the lower die is provided with a lower pneumatic sliding rail lock. The locking effect is good, the stability of assembly is guaranteed, and the size is precisely controlled.
Preferably, the upright columns are uniformly distributed on the outer ring of the support column, the centers of the upright columns are provided with bulges, and the bulges are matched with the positioning holes of lugs on the end cover assembly. The end cap assembly is pre-positioned and supported.
Preferably, a through hole is formed in the positioning seat, a positioning support shaft is arranged in the through hole, and the positioning support shaft is connected with the rotor shaft. And the rotor shaft is supported, so that the assembly effect is ensured.
Preferably, the press fitting part is a servo press, and an output shaft of the servo press is connected with the upper die. And driving the upper die to press down to complete assembly.
Preferably, the pressing piece is the same as the end cover assembly in shape, a central column is arranged in the center of the pressing piece, the end face of the central column is connected with the end face of the bearing, positioning columns are arranged around the central column, and the positioning columns are the same as lugs on the end cover in position. The positioning effect is ensured, and stable assembly is completed.
Preferably, an anti-overvoltage module is further arranged on the end face of the upper die and comprises a bottom plate and a cylinder located in the middle of the bottom plate, the diameter of the cylinder is smaller than the width of the bottom plate, and a guide shaft is connected to the anti-overvoltage module. The overpressure prevention module ensures that the upper die and the lower die cannot be damaged when the servo press breaks down, and the guide shaft at the upper end of the overpressure prevention module also realizes the guide effect on the upper die.
Therefore, the utility model discloses an assembly equipment of rotor and end cover among brushless motor possesses following advantage: in the installation process, the play of the rotor shaft is effectively avoided, the accumulated tolerance is reduced, and the installation size is precisely controlled, so that the stable performance of the motor is ensured, the defective rate is low, the service life is stable, and the consistency is good. The assembly equipment has good stability and good assembly effect.
Drawings
Fig. 1 is a perspective view of a rotor assembly assembled by the assembling apparatus of the present invention.
Fig. 2 is a perspective view of the end cover assembly assembled by the assembling device of the present invention.
Fig. 3 is a perspective view of the assembling apparatus of the present invention.
Fig. 4 is an enlarged view at a in fig. 3.
Fig. 5 is a front view of fig. 3.
Fig. 6 is a sectional view B-B of fig. 5.
Fig. 7 is a perspective view of the upper die of fig. 3.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b):
as shown in fig. 1, a rotor assembly in a brushless motor includes a rotor shaft 3, a rotor magnetic ring 4 is sleeved in the middle of the rotor shaft 3, a lower bearing 5 is sleeved below the rotor magnetic ring 4, and an end cover assembly 9 is arranged at the upper end of the rotor shaft 3.
As shown in fig. 2, the end cap assembly in the brushless motor includes an end cap 1, and an upper bearing 2 is installed at the center of the end cap 1. Three lugs 7 are integrally formed on the outer circumferential surface of the end cover 1, and positioning holes 6 are formed in the lugs 7.
As shown in fig. 3, 4, 5, 6 and 7, the assembling device for realizing the assembling process comprises a lower die 12 and an upper die 18 which are arranged on a frame 8, wherein the lower die 12 comprises a positioning seat 11, a through hole is arranged at the center of the positioning seat 11, a positioning support shaft 20 is arranged in the through hole, a pneumatic pressing device is arranged below the positioning support shaft 20, and the positioning support shaft 20 abuts against the lower end of the rotor shaft 3 and supports the rotor shaft 3. Three upright posts 13 are arranged outside the positioning seat 11, bulges 16 are formed on the upper end faces of the upright posts 13, the bulges 16 are matched with the positioning holes 6 on the lugs of the end cover, and the end cover assembly 9 is placed on the upright posts 13 by an external manipulator. And a lower pneumatic sliding rail lock 19 is arranged below the lower die 12, and after the positioning of the end cover assembly 9 and the rotor 10 is completed, the lower pneumatic sliding rail lock 19 is started to lock the position of the lower die 12. And when the end cover assembly and the rotor shaft are finally matched and pressed, the positioning support shaft and the stand column move downwards along with the movement of the press.
The center of the upper die is a pressing piece 24, the shape of the pressing piece 24 is the same as that of the end cover assembly, a center column 21 is arranged in the center of the pressing piece, the end face of the center column 21 is connected with the end face of the upper bearing 2, positioning columns 22 are arranged around the center column 21, and the positions of the positioning columns 22 are the same as those of lugs on the end cover assembly 9. When the positioning post 22 is pressed and positioned under the upper die, the positioning post presses on the upper surface of the end cover. After the upper die moves downwards to the end cover assembly, the pressing piece in the center is contacted with the end cover to ensure that the pressing piece is abutted against the upper inner ring of the bearing, and after positioning is completed, the position of the upper die is locked by the upper pneumatic slide rail lock 14. The servo press 15, located above the upper die, is then activated to apply pressure to the end cap assembly, thereby installing the end cap assembly with the rotor shaft. Still be equipped with on the terminal surface of last mould and prevent excessive pressure module 23, prevent that excessive pressure module 23 includes the bottom plate and is located the cylinder in the middle of the bottom plate, and the cylinder diameter is less than the bottom plate width, prevents to be connected with the guiding axle on the excessive pressure module.
The assembly process for assembling the end cap assembly to the rotor is as follows:
firstly, a rotor 10 is placed on a lower die 12, a rotor shaft 3 is placed in a positioning hole in the lower die, three upright columns 13 around the positioning hole are lifted, an end cover assembly 9 is placed on the upright columns 13, and the positioning hole on a lug on the end cover assembly 9 is matched with a bulge 16 on the upright columns 13;
secondly, the upper die 18 moves downwards until the pressing piece 24 on the end surface of the upper die abuts against the upper end surface of the end cover assembly 9;
thirdly, the lower die 12 moves upwards until the upper end face of the rotor shaft 3 abuts against the lower inner ring of the upper bearing 2 in the end cover assembly, so that the rotor shaft 3 and the upper bearing 2 form pre-installation positioning, and a positioning support shaft 20 in the lower die 12 abuts against a positioning hole at the bottom of the rotor shaft;
fourthly, the upper die 12 moves downwards until the central column of the pressing piece 24 on the end surface of the upper die is abutted against the upper inner ring of the upper bearing 2;
and fifthly, positioning the upper die and the lower die through the third step and the fourth step by respectively using the upper end surface and the lower end surface of the bearing as positioning reference surfaces for mounting the end cover assembly and the rotor, locking the upper die and the lower die by using an upper pneumatic slide rail lock and a lower pneumatic slide rail lock, namely determining the relative positions of the end cover assembly and the rotor shaft, starting a servo press 15 above the upper die for press mounting, pressing the end cover assembly downwards to enable the rotor shaft to penetrate into the bearing, controlling the distance between the upper end surface of the rotor shaft and the upper end surface of the end cover assembly to be 2.5mm, and ensuring that the dimensional tolerance is controlled within +/-0.05 mm.
Claims (7)
1. The utility model provides an rigging equipment of rotor and end cover among brushless motor which characterized in that: the device comprises a frame, wherein a lower die and an upper die are arranged on the frame, the lower die comprises a positioning seat, and an upright post is arranged outside the positioning seat; the upper die comprises a pressing piece positioned in the center; the upper die is connected with a press-fitting component.
2. The assembling apparatus of a rotor and an end cap in a brushless motor according to claim 1, wherein: the pneumatic sliding rail lock is characterized in that the upper die and the lower die are both provided with locking parts, the upper die is provided with an upper pneumatic sliding rail lock, and the lower die is provided with a lower pneumatic sliding rail lock.
3. The assembling apparatus of a rotor and an end cap in a brushless motor according to claim 1 or 2, wherein: the stand equipartition in the support column outer lane, the center of stand is equipped with the arch, protruding and the locating hole cooperation of the lug on the end cover subassembly.
4. The assembling apparatus of a rotor and an end cap in a brushless motor according to claim 1 or 2, wherein: the positioning seat is internally provided with a through hole, a positioning support shaft is arranged in the through hole, and the positioning support shaft is connected with the rotor shaft.
5. The assembling apparatus of a rotor and an end cap in a brushless motor according to claim 1 or 2, wherein: the press fitting part is a servo press, and an output shaft of the servo press is connected with the upper die.
6. The assembling apparatus of a rotor and an end cap in a brushless motor according to claim 1 or 2, wherein: the shape of the pressing piece is the same as that of the end cover assembly, a central column is arranged in the center of the pressing piece, the end face of the central column is connected with the end face of the bearing, positioning columns are arranged around the central column, and the positions of the positioning columns are the same as those of lugs on the end cover.
7. The assembling apparatus of a rotor and an end cap in a brushless motor according to claim 1 or 2, wherein: the anti-overvoltage module is further arranged on the end face of the upper die and comprises a bottom plate and a cylinder located in the middle of the bottom plate, the diameter of the cylinder is smaller than the width of the bottom plate, and a guide shaft is connected to the anti-overvoltage module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921147465.4U CN210016380U (en) | 2019-07-22 | 2019-07-22 | Assembly equipment for rotor and end cover in brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921147465.4U CN210016380U (en) | 2019-07-22 | 2019-07-22 | Assembly equipment for rotor and end cover in brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210016380U true CN210016380U (en) | 2020-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921147465.4U Active CN210016380U (en) | 2019-07-22 | 2019-07-22 | Assembly equipment for rotor and end cover in brushless motor |
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| Country | Link |
|---|---|
| CN (1) | CN210016380U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365175A (en) * | 2019-07-22 | 2019-10-22 | 江西沃得尔科技有限公司 | The assembly technology and its assembly equipment of rotor and end cap in brushless motor |
-
2019
- 2019-07-22 CN CN201921147465.4U patent/CN210016380U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110365175A (en) * | 2019-07-22 | 2019-10-22 | 江西沃得尔科技有限公司 | The assembly technology and its assembly equipment of rotor and end cap in brushless motor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 335200 glasses Industrial Park, Yujiang County, Yingtan City, Jiangxi Province Patentee after: Jiangxi Woder Technology Co.,Ltd. Address before: 335200 glasses Industrial Park, Yujiang County, Yingtan City, Jiangxi Province Patentee before: Jiangxi Warder Technology Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |