CN114102100A - Brushless DC motor hall seat pressure equipment guiding device - Google Patents
Brushless DC motor hall seat pressure equipment guiding device Download PDFInfo
- Publication number
- CN114102100A CN114102100A CN202111518426.2A CN202111518426A CN114102100A CN 114102100 A CN114102100 A CN 114102100A CN 202111518426 A CN202111518426 A CN 202111518426A CN 114102100 A CN114102100 A CN 114102100A
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- end cover
- bottom plate
- spring
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- 238000013461 design Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Brushless Motors (AREA)
Abstract
The invention provides a brushless direct current motor Hall seat press-fitting guiding device, which comprises a positioning bottom plate, a positioning pin, a spring guiding column and a pressing plate, wherein the spring guiding column is arranged on the positioning bottom plate; the positioning bottom plate is provided with 3 positioning holes which are matched with the positioning pins and the spring guide columns, so that the rear end cover of the brushless direct current motor and the Hall seat are positioned, and the circle center of the long positioning hole of the rear end cover and the center of the Hall seat mounting groove are ensured to be on the same straight line. After the invention is adopted, the precision of the press-mounting position of the Hall seat of the brushless direct current motor can be ensured, the problem of product quality caused by human factors is avoided, the product percent of pass is improved, the efficiency is improved, and various performances of the motor are ensured.
Description
Technical Field
The invention relates to the technical field of brushless direct current motor installation, in particular to a Hall seat press-fitting guiding device for a brushless direct current motor.
Background
With the continuous development of the motor market, brushless dc motors have been widely used in various fields. The press mounting of the Hall seat of the existing brushless direct current motor is carried out according to the following procedures:
1. baking: and baking the rear end cover at a certain temperature, and preserving heat for a certain time to ensure that the end cover is thermally expanded.
2. And (3) liquid nitrogen cooling: and the Hall mounting seat is placed in liquid nitrogen, so that the product is shrunk and is convenient to press fit.
3. Press fitting: and taking the rear end cover out of the oven, quickly taking the Hall mounting seat out of liquid nitrogen, and quickly pressing the Hall seat into the rear end cover by using a common cylindrical pressure head after the center of the positioning hole of the rear end cover is aligned with the center of the groove of the Hall mounting seat visually.
Because the positioning hole of the rear end cover and the Hall mounting groove are not on the same plane in the axial direction, the accuracy of the press mounting position is difficult to ensure by visual alignment of the press mounting holes, the press mounting angle is often deviated (the center of the positioning hole of the rear end cover is not aligned with the center of the Hall mounting seat groove), the mounting seat is detached and scrapped due to a large deviation angle, the product performance is unstable due to slight deviation, and the data dispersion is large.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a brushless direct current motor Hall seat press-fitting guiding device, which solves the problem of Hall seat press-fitting deflection and improves the accuracy of motor processing.
The technical scheme of the invention is as follows:
a brushless direct current motor Hall seat press-fitting guiding device comprises a positioning bottom plate, a positioning pin, a spring guiding column and a pressing plate;
the positioning bottom plate is provided with at least 3 positioning holes, and the aperture of each positioning hole is matched with the edge diameter of a long-strip arc-shaped positioning hole of the rear end cover of the brushless direct current motor; the centers of the two positioning holes are positioned on the same circumference, and the central angle of the centers of the two positioning holes is equal to the angle of the long-strip arc positioning hole of the rear end cover of the brushless direct current motor and is used for positioning the rear end cover;
the center of a third positioning hole in the positioning bottom plate and the center of one of the two positioning holes for positioning the rear end cover are positioned on the same radial line, the two positioning holes positioned on the same radial line are used for positioning the Hall seat, and the circle center of the long positioning hole of the rear end cover and the center of the Hall seat mounting groove are ensured to be on the same straight line by matching with the pressing plate;
the positioning pin can be in clearance fit with the positioning hole of the positioning bottom plate through tolerance; the positioning pin is inserted into a positioning hole on the positioning bottom plate, which is only used for positioning the rear end cover, and can be inserted into a long-strip arc-shaped positioning hole of the rear end cover of the brushless direct current motor;
the spring guide column is axially divided into three sections, namely a positioning part, a spring guide part and a thread section; the diameter of the spring guide part is larger than that of the positioning part; the positioning part can be inserted into two positioning holes which are arranged on the positioning bottom plate and used for positioning the Hall seat, the spring guide part is sleeved with a spring, and a nut is arranged on the thread section and used for being matched with the spring to axially restrain the pressing plate;
the spring is sleeved on the spring guide part of the spring guide column, one end of the spring is restrained by the positioning bottom plate, and the other end of the spring is restrained by the pressure plate and is in a compressed state;
the pressure plate is provided with a long straight hole, the design width of the long straight hole is equal to the design diameter size of the spring guide parts of the spring guide columns, the pressure plate is matched with the spring guide parts of the two spring guide columns through the long straight hole to be restrained at the radial position of the positioning bottom plate, and the pressure plate can freely slide and be positioned on the spring guide columns along the radial direction of the positioning bottom plate through the long straight hole through tolerance matching; and one end of the pressing plate in the length direction of the long straight hole is provided with a positioning key, and the width of the positioning key is equal to the width of a Hall mounting groove of a Hall seat of the brushless direct current motor.
Furthermore, the aperture of the positioning hole in the positioning bottom plate is slightly smaller than the diameter of the long positioning hole of the rear end cover of the brushless direct current motor, and the design difference is 0.1 mm.
Furthermore, the positioning bottom plate is of a fan-shaped structure, the circle centers of the circumferences where the centers of the two positioning holes of the rear end cover are located are coincident with the circle center of the fan-shaped positioning bottom plate, and the radius of the circumference is equal to the radius of the circumference where the long-strip arc-shaped positioning hole of the rear end cover is located.
Furthermore, the positioning device is used for positioning two positioning holes of the rear end cover, wherein the center of one positioning hole is positioned on the radial central line of the fan-shaped positioning bottom plate.
Furthermore, the center of the third positioning hole on the positioning bottom plate and the center of the positioning hole on the radial center line of the fan-shaped positioning bottom plate in the two positioning holes for positioning the rear end cover are positioned on the same radial line.
Furthermore, the length of the positioning part of the spring guide column inserted into the positioning hole which is used for positioning the rear end cover and the Hall seat is longer, the length of the positioning part of the spring guide column inserted into the positioning hole which is only used for positioning the Hall seat is shorter, and the end face is abutted to the rear end cover of the brushless DC motor.
Further, for the spring, when the spring is compressed until the distance between the positioning bottom plate and the pressure plate is equal to the distance between the plane of the rear end cover and the plane of the Hall groove, the elastic force of the spring reaches the size matching pressure of the rear end cover and the Hall seat.
Furthermore, in the pressing plate, the central line of the positioning key is superposed with the central line of the long straight hole.
Advantageous effects
The invention provides a brushless direct current motor spring guiding device pressing Hall seat device, which is used for pressing a brushless direct current motor Hall seat, is accurate in pressing position, avoids product quality problems caused by human factors, improves product qualification rate, improves efficiency and ensures various performances of a motor.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1: positioning a bottom plate structure diagram;
1-rear end cover positioning hole, 2-pressing plate positioning guide hole;
FIG. 2: a positioning pin dimension chart;
FIG. 3: spring guide post structure diagram;
3-positioning part of end cover hole, 4-spring guide post;
FIG. 4: a platen size diagram;
5-Hall groove positioning keys and 4-long holes of the pressing plate;
FIG. 5: the rear end cover and the Hall seat are pressed and mounted schematically;
a: rear end cap and hall seat structure b: rear end cover hole and Hall groove center position schematic diagram
7-Hall seat, 8-rear end cover; 9-the center of a positioning hole of the rear end cover, and 10-the center of the Hall groove;
FIG. 6: general view of spring guide device
c: press-fitting plan view (nut omitted) d: spring-guided press-fitting schematic diagram
Detailed Description
The existing brushless direct current motor Hall seat is pressed by adopting a hot drying end cover, a cold shrinking Hall seat and a visual alignment method by using a common pressure head, the visual pressing precision is low, the position deflection probability is high, the product performance is influenced, the product repair rate is high, and the scrapped quantity is large.
Aiming at the problem, the invention provides a device and a method for press-fitting and guiding a Hall seat of a brushless direct current motor.
As shown in fig. 5, in this embodiment, the BLDCM-10(10W) brushless dc motor hall socket is press-fitted, and 2 positioning holes of the rear end cap have edge diameters
The angle is the rectangular arc locating hole of 20 degrees, and the hall installation groove is 4mm wide groove with the interval angle of 80 degrees, and the requirement is that the back end cover is rectangular
The center is aligned with the center of the Hall mounting groove, and the Hall piece meets the performance requirement of the motor after being assembled.
Fig. 1 is a structural diagram of a positioning bottom plate of the present embodiment, fig. 2 is a dimensional diagram of a positioning pin, fig. 3 is a structural diagram of a spring guide post of the present embodiment, fig. 4 is a dimensional diagram of a pressing plate of the present embodiment, fig. 5 is a schematic diagram of press-fitting of a rear end cover and a hall base, and fig. 6 is a general diagram of a spring guide device.
The concrete description is as follows:
(1) positioning the bottom plate: the positioning bottom plate is of a fan-shaped structure, and the number of the positioning bottom plates is 3
The centers of the two positioning holes are positioned on the same circumference, the circle center of the circumference is superposed with the circle center of the fan-shaped positioning bottom plate, the radius of the circumference is equal to the radius of the circumference where the long-strip arc-shaped positioning hole of the rear end cover is positioned, the central angle of the centers of the two positioning holes on the positioning bottom plate is 20 degrees and is equal to the angle of the long-strip arc-shaped positioning hole of the rear end cover, and the two positioning holes are used for positioning the rear end cover; further, the center of one of the two positioning holes is positioned on the radial center line of the fan-shaped positioning bottom plate.
The center of the third positioning hole on the positioning bottom plate and the center of one of the two positioning holes for positioning the rear end cover are on the same radial line, wherein the center of the third positioning hole on the positioning bottom plate and the center of one of the two positioning holes for positioning the rear end cover are preferably on the same radial line with the positioning hole on the radial center line of the fan-shaped positioning bottom plate. The two positioning holes on the same radial line are used for positioning the Hall seat, and the circle center of the long positioning hole of the rear end cover and the center of the Hall seat mounting groove are ensured to be on the same straight line by matching with the pressing plate.
(2) Positioning pins: the positioning pin has the size of
The positioning base plate can be in clearance fit with the positioning hole of the positioning base plate through tolerance; the positioning pin is inserted into a positioning hole on the positioning bottom plate, specifically a positioning hole which is used for positioning the rear end cover but not used for positioning the Hall seat, and can be inserted into a long-strip arc-shaped positioning hole of the rear end cover of the brushless direct current motor.
(3) A spring guide post: the spring guide column is axially divided into three sections with diameters in sequence
Location of diameter
The spring guide portion and the threaded section. Diameter thereof
Can locate the positionInserted into two positioning holes on the positioning base plate for positioning the Hall seat
The spring guide part is sleeved with a spring, and a nut is arranged on the thread section and is used for being matched with the spring to axially restrain the pressure plate. Wherein insert the spring guide post location position length that both is used for fixing a position the rear end cap and is arranged in the locating hole of location hall seat longer, can also insert the rectangular arc locating hole of brushless DC motor rear end cap in, and insert the spring guide post location position length that only is arranged in the locating hole of location hall seat shorter, the terminal surface supports on brushless DC motor rear end cap.
(4) A spring: the spring is sleeved on the spring guide part of the spring guide column, one end of the spring is restrained by the positioning bottom plate, and the other end of the spring is restrained by the pressure plate and is in a compressed state. The requirement of the spring is that when the spring is compressed until the distance between the positioning bottom plate and the pressure plate is equal to the distance between the plane of the rear end cover and the plane of the Hall groove, the elastic force can reach the matching pressure of the size of the rear end cover and the Hall seat, and particularly when the spring is compressed to 6.5mm, the elastic force reaches 5N.
(5) Pressing a plate: the clamp plate is provided with a long-strip straight hole with the width of 5mm, the clamp plate is matched with the spring guide parts of the two spring guide columns through the long-strip straight hole, the clamp plate is constrained at the radial position of the positioning bottom plate, and the clamp plate can be freely positioned on the spring guide columns along the radial direction of the positioning bottom plate through the long-strip straight hole through tolerance matching. The one end of the rectangular straight hole length direction of clamp plate has the wide navigation key of 4mm, and this width matches with the groove width of hall mounting groove, and the navigation key central line coincides with rectangular straight hole central line moreover.
When the rear end cover and the Hall seat are pressed, the positioning key is placed in the Hall seat groove and pressed down along with the movement of the pressing plate, so that the Hall groove can be accurately and radially positioned, and the center of the positioning hole of the rear end cover is aligned with the center of the Hall groove. The device is used for the pressure equipment of brushless DC motor hall seat, and hall seat pressure equipment angle is accurate, has avoided the human factor to cause the product quality problem, uses the device to promote the product percent of pass, has improved the efficiency, has guaranteed each item performance of motor.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (8)
1. The utility model provides a brushless DC motor hall seat pressure equipment guiding device which characterized in that: the device comprises a positioning bottom plate, a positioning pin, a spring guide column and a pressing plate;
the positioning bottom plate is provided with at least 3 positioning holes, and the aperture of each positioning hole is matched with the edge diameter of a long-strip arc-shaped positioning hole of the rear end cover of the brushless direct current motor; the centers of the two positioning holes are positioned on the same circumference, and the central angle of the centers of the two positioning holes is equal to the angle of the long-strip arc positioning hole of the rear end cover of the brushless direct current motor and is used for positioning the rear end cover;
the center of a third positioning hole in the positioning bottom plate and the center of one of the two positioning holes for positioning the rear end cover are positioned on the same radial line, the two positioning holes positioned on the same radial line are used for positioning the Hall seat, and the circle center of the long positioning hole of the rear end cover and the center of the Hall seat mounting groove are ensured to be on the same straight line by matching with the pressing plate;
the positioning pin can be in clearance fit with the positioning hole of the positioning bottom plate through tolerance; the positioning pin is inserted into a positioning hole on the positioning bottom plate, which is only used for positioning the rear end cover, and can be inserted into a long-strip arc-shaped positioning hole of the rear end cover of the brushless direct current motor;
the spring guide column is axially divided into three sections, namely a positioning part, a spring guide part and a thread section; the diameter of the spring guide part is larger than that of the positioning part; the positioning part can be inserted into two positioning holes which are arranged on the positioning bottom plate and used for positioning the Hall seat, the spring guide part is sleeved with a spring, and a nut is arranged on the thread section and used for being matched with the spring to axially restrain the pressing plate;
the spring is sleeved on the spring guide part of the spring guide column, one end of the spring is restrained by the positioning bottom plate, and the other end of the spring is restrained by the pressure plate and is in a compressed state;
the pressure plate is provided with a long straight hole, the design width of the long straight hole is equal to the design diameter size of the spring guide parts of the spring guide columns, the pressure plate is matched with the spring guide parts of the two spring guide columns through the long straight hole to be restrained at the radial position of the positioning bottom plate, and the pressure plate can freely slide and be positioned on the spring guide columns along the radial direction of the positioning bottom plate through the long straight hole through tolerance matching; and one end of the pressing plate in the length direction of the long straight hole is provided with a positioning key, and the width of the positioning key is equal to the width of a Hall mounting groove of a Hall seat of the brushless direct current motor.
2. The brushless direct current motor hall seat press-fitting guiding device as claimed in claim 1, wherein: the diameter of the positioning hole on the positioning bottom plate is slightly smaller than the diameter of the long positioning hole of the rear end cover of the brushless direct current motor, and the design difference is 0.1 mm.
3. The brushless direct current motor hall seat press-fitting guiding device as claimed in claim 1, wherein: the positioning bottom plate is of a fan-shaped structure, the circle centers of the circumferences where the centers of the two positioning holes of the rear end cover are located coincide with the circle center of the fan-shaped positioning bottom plate, and the radius of the circumference is equal to the radius of the circumference where the long-strip arc-shaped positioning hole of the rear end cover is located.
4. The brushless direct current motor hall seat press-fitting guiding device as claimed in claim 3, wherein: and the center of one of the two positioning holes for positioning the rear end cover is positioned on the radial central line of the fan-shaped positioning bottom plate.
5. The brushless direct current motor hall seat press-fitting guiding device as claimed in claim 4, wherein: the center of the third positioning hole on the positioning bottom plate and the center of one of the two positioning holes for positioning the rear end cover, which is located on the radial center line of the fan-shaped positioning bottom plate, are located on the same radial line.
6. The brushless direct current motor hall seat press-fitting guiding device as claimed in claim 1, wherein: the length of the positioning part of the spring guide column inserted into the positioning hole used for positioning the rear end cover and the Hall seat is longer, the length of the positioning part of the spring guide column inserted into the positioning hole used for positioning the Hall seat is shorter, and the end face of the spring guide column inserted into the positioning hole used for positioning the Hall seat is abutted to the rear end cover of the brushless DC motor.
7. The brushless direct current motor hall seat press-fitting guiding device as claimed in claim 1, wherein: for the spring, when the spring is compressed until the distance between the positioning bottom plate and the pressure plate is equal to the distance between the plane of the rear end cover and the plane of the Hall groove, the elastic force of the spring reaches the size matching pressure of the rear end cover and the Hall seat.
8. The brushless direct current motor hall seat press-fitting guiding device as claimed in claim 1, wherein: in the pressing plate, the central line of the positioning key is superposed with the central line of the long straight hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111518426.2A CN114102100B (en) | 2021-12-12 | 2021-12-12 | Brushless direct current motor hall seat pressure equipment guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111518426.2A CN114102100B (en) | 2021-12-12 | 2021-12-12 | Brushless direct current motor hall seat pressure equipment guiding device |
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| Publication Number | Publication Date |
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| CN114102100A true CN114102100A (en) | 2022-03-01 |
| CN114102100B CN114102100B (en) | 2024-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111518426.2A Active CN114102100B (en) | 2021-12-12 | 2021-12-12 | Brushless direct current motor hall seat pressure equipment guiding device |
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| CN (1) | CN114102100B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4952830A (en) * | 1988-09-22 | 1990-08-28 | Mitsubishi Denki Kabushiki Kaisha | Brushless motor with hall elements |
| JPH0686511A (en) * | 1992-09-03 | 1994-03-25 | Honda Motor Co Ltd | Method of assembling rotating electric machine |
| CN202978621U (en) * | 2012-11-05 | 2013-06-05 | 贵州航天林泉电机有限公司 | Pressing positioning fixture applied to brushless motor chute stator iron core |
| CN106253622A (en) * | 2016-08-31 | 2016-12-21 | 卧龙电气集团股份有限公司 | A kind of Novel direct-current brushless vibrating motor and assembly method thereof |
| CN106984958A (en) * | 2017-04-25 | 2017-07-28 | 上海众源燃油分配器制造有限公司 | A kind of device assembled for pipe joint with flange |
| CN109756086A (en) * | 2017-11-08 | 2019-05-14 | 襄阳中车电机技术有限公司 | A kind of electric motor end cap oil seal pressing positioning device |
| WO2020054095A1 (en) * | 2018-09-14 | 2020-03-19 | 株式会社ミツバ | Electric motor and method for manufacturing electric motor |
| CN112260488A (en) * | 2020-11-13 | 2021-01-22 | 爱克玛电驱动系统(苏州)有限公司 | Installation and location structure of motor hall circuit board |
| CN214868597U (en) * | 2021-05-08 | 2021-11-26 | 黑龙江釜隆瑞鑫精工科技有限公司 | Device for simultaneously press-mounting shaft connecting bearing and dust cap |
| CN113732620A (en) * | 2021-09-24 | 2021-12-03 | 安徽威灵汽车部件有限公司 | Assembly system |
-
2021
- 2021-12-12 CN CN202111518426.2A patent/CN114102100B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4952830A (en) * | 1988-09-22 | 1990-08-28 | Mitsubishi Denki Kabushiki Kaisha | Brushless motor with hall elements |
| JPH0686511A (en) * | 1992-09-03 | 1994-03-25 | Honda Motor Co Ltd | Method of assembling rotating electric machine |
| CN202978621U (en) * | 2012-11-05 | 2013-06-05 | 贵州航天林泉电机有限公司 | Pressing positioning fixture applied to brushless motor chute stator iron core |
| CN106253622A (en) * | 2016-08-31 | 2016-12-21 | 卧龙电气集团股份有限公司 | A kind of Novel direct-current brushless vibrating motor and assembly method thereof |
| CN106984958A (en) * | 2017-04-25 | 2017-07-28 | 上海众源燃油分配器制造有限公司 | A kind of device assembled for pipe joint with flange |
| CN109756086A (en) * | 2017-11-08 | 2019-05-14 | 襄阳中车电机技术有限公司 | A kind of electric motor end cap oil seal pressing positioning device |
| WO2020054095A1 (en) * | 2018-09-14 | 2020-03-19 | 株式会社ミツバ | Electric motor and method for manufacturing electric motor |
| CN112260488A (en) * | 2020-11-13 | 2021-01-22 | 爱克玛电驱动系统(苏州)有限公司 | Installation and location structure of motor hall circuit board |
| CN214868597U (en) * | 2021-05-08 | 2021-11-26 | 黑龙江釜隆瑞鑫精工科技有限公司 | Device for simultaneously press-mounting shaft connecting bearing and dust cap |
| CN113732620A (en) * | 2021-09-24 | 2021-12-03 | 安徽威灵汽车部件有限公司 | Assembly system |
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| Publication number | Publication date |
|---|---|
| CN114102100B (en) | 2024-06-18 |
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