CN220857861U - Motor rotor press-fitting tool - Google Patents
Motor rotor press-fitting tool Download PDFInfo
- Publication number
- CN220857861U CN220857861U CN202322552801.6U CN202322552801U CN220857861U CN 220857861 U CN220857861 U CN 220857861U CN 202322552801 U CN202322552801 U CN 202322552801U CN 220857861 U CN220857861 U CN 220857861U
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- press
- rotor
- motor shaft
- front baffle
- baffle plate
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 230000006698 induction Effects 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 31
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model relates to the technical field of motor rotors and discloses a motor rotor press-fitting tool which comprises a press-fitting tool main body, wherein the press-fitting tool adopts a structure of an upper die and a lower die, a pressure sensor is fixed in the upper die and is fixed through a fixing screw, a motor shaft is connected to the central induction position of the pressure sensor in a penetrating way, press-fitting force is provided for the motor shaft, the press-fitting state of the motor shaft is monitored, and a front baffle plate and a rear baffle plate are respectively pressed on the upper die and the lower die. According to the utility model, the rear baffle plate is pre-clamped on the rotor core, a magnet is taken and arranged in a corresponding hole site described by the rotor core according to polarity requirements, the front baffle plate is pre-installed above the rotor core, the pre-installed rotor assembly is placed in a lower die, starting equipment is used for press-mounting, after the front baffle plate and the rear baffle plate are press-mounted, a motor shaft is clamped in the rotor assembly, and the starting equipment is used for press-mounting the motor shaft to the corresponding position of the rotor assembly.
Description
Technical Field
The utility model relates to the field of motor rotors, in particular to a motor rotor press-fitting tool.
Background
Current chinese invention patent application, publication No.: CN110768500a discloses a brushless motor assembly for automobile radiator fan, including stator assembly, rotor assembly and heat dissipation lid, the rotor assembly includes rotor core, rotor shaft and magnet steel, rotor core's center is provided with the centre bore, and rotor core's periphery circumference equipartition has the standing groove that is used for placing the magnet steel, rotor assembly still includes front bezel and backplate, the rotor shaft runs through centre bore and backplate and with backplate fixed connection, front bezel is fixed in rotor core's preceding terminal surface, the backplate relies on at rotor core's rear end face, the magnet steel is installed in the standing groove and is retrained between front bezel and backplate at the fore-and-aft direction, all be provided with radial limit structure in every standing groove of rotor core. The axial position and the radial position of the magnetic steel of the rotor assembly of the brushless motor assembly are restrained, so that the movement of the magnetic steel is reduced, and the magnetic field fluctuation is reduced.
The rotor assembly of the cited patent is fixed through the front baffle and the rear baffle, but the front baffle and the rear baffle lack a press-fit fixing mechanism when being pressed and assembled to the rotor assembly, the rotor assembly is fixed only through the front baffle and the rear baffle, and is easy to shake, and the press-fit fixing to the rotor assembly is not realized by a good method, so that the press-fit problem between the baffle and the rotor core is needed to be solved at present.
Disclosure of utility model
The utility model provides a motor rotor press-fitting tool for solving the technical problem of press-fitting between a baffle and a rotor core.
The utility model is realized by adopting the following technical scheme: the motor rotor press-fitting tool comprises a press-fitting tool main body, wherein the press-fitting tool adopts a structure of an upper die and a lower die, a pressure sensor is fixed in the upper die and is fixed through a fixing screw, a motor shaft is connected to the central induction position of the pressure sensor in a penetrating way, press-fitting force is provided for the motor shaft, the press-fitting state of the motor shaft is monitored, and a front baffle plate and a rear baffle plate are respectively pressed on the upper die and the lower die;
The front baffle and the rear baffle adopt clamping structures, the axle center holes of the front baffle and the rear baffle are matched with a motor shaft to realize an internal and external fixation mode, a magnet is fixed in an iron core groove of a rotor iron core, the rotor iron core is composed of superposed silicon steel sheets, the front baffle comprises an annular front baffle body, connecting columns are arranged on the annular front baffle body, connecting holes corresponding to the connecting columns are formed in the corresponding rotor iron core, the front baffle body is fixedly clamped and formed through the connecting columns embedded in the rotor iron core holes and the side walls of the rotor iron core to be connected, the center holes of the front baffle are in interference fit with the motor shaft, the height of the magnet is higher than that of the rotor iron core, the rotor iron core is clamped in through side holes of the rotor iron core, and the rear baffle is installed in the connecting holes of the rotor iron core through the connecting columns.
The method comprises the steps of pre-clamping a rear baffle on a rotor core, taking a magnet to be installed in a corresponding hole site described by the rotor core according to polarity requirements, pre-installing the front baffle above the rotor core, placing a pre-installed rotor assembly in a lower die, pressing by starting equipment, clamping a motor shaft in the rotor assembly after the front baffle and the rear baffle are pressed, and pressing the motor shaft to the corresponding position of the rotor assembly by the starting equipment. The tool facility can use one set of tool to simultaneously finish the press mounting of the front baffle plate, the rear baffle plate and the motor shaft of the rotor core, and the post working time is reduced by-S compared with the press mounting of double equipment and double tools. When the front baffle and the rear baffle are pressed, force is mainly applied to the groove position of the connecting column, and when the motor shaft is pressed, the pressure sensor can monitor the pressing position and the pressure of the motor shaft, so that the guarantee of the pressing consistency of general pressing equipment is met, the fixing strength of the structure of the product is guaranteed through the front baffle and the rear baffle of the product and the control of the pressing point position, and the product is light in weight and has better reliability.
As a further improvement of the above solution, the pressure sensor is of the type RDF-K36,
As a further improvement of the scheme, the connecting columns on the front baffle plate and the rear baffle plate are clamped in the rotor core, and the front baffle plate and the rear baffle plate are attached to the rotor core when the motor shaft is pressed.
As a further improvement of the scheme, the center position of the lower die adopts a through hole design, a motor shaft penetrates through the center through hole of the lower die, and the press fitting depth of the motor shaft is determined by the position of the pressure sensor. The motor shaft, the front baffle, the magnet, the rotor core and the rear baffle form a rotor assembly.
Compared with the prior art, the utility model has the beneficial effects that:
1. According to the utility model, the rear baffle plate is pre-clamped on the rotor core, a magnet is taken and arranged in a corresponding hole site described by the rotor core according to polarity requirements, the front baffle plate is pre-installed above the rotor core, the pre-installed rotor assembly is placed in a lower die, starting equipment is used for press-mounting, after the front baffle plate and the rear baffle plate are press-mounted, a motor shaft is clamped in the rotor assembly, and the starting equipment is used for press-mounting the motor shaft to the corresponding position of the rotor assembly.
2. The tooling facility can use one set of tooling to simultaneously finish the press mounting of the front baffle plate, the rear baffle plate and the motor shaft of the rotor core, and the post working time is reduced by-S compared with the press mounting of double equipment and double tooling. When the front baffle and the rear baffle are pressed, force is mainly applied to the groove position of the connecting column, and when the motor shaft is pressed, the pressure sensor can monitor the pressing position and the pressure of the motor shaft, so that the guarantee of the pressing consistency of general pressing equipment is met, the fixing strength of the structure of the product is guaranteed through the front baffle and the rear baffle of the product and the control of the pressing point position, and the product is light in weight and has better reliability.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic diagram illustrating the split state of the structure of FIG. 1 according to the present utility model;
FIG. 3 is a schematic cross-sectional view of a portion of the structure of FIG. 2 in accordance with the present utility model;
FIG. 4 is a schematic diagram of a pressure sensor connection structure according to the present utility model;
FIG. 5 is a schematic view of the upper mold connecting structure of the present utility model;
FIG. 6 is a schematic view of the connection structure of the lower mold of the present utility model;
FIG. 7 is a schematic view of a rotor assembly connection structure according to the present utility model.
Main symbol description:
1. A pressure sensor; 2. a set screw; 3. an upper die; 4. a motor shaft; 5. a front baffle; 6. a magnet; 7. a rotor core; 8. a rear baffle; 9. a lower die; 10. and a rotor assembly.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
Example 1:
Referring to fig. 1-7, the embodiment provides a motor rotor press-mounting tool, which comprises a press-mounting tool main body, wherein the press-mounting tool adopts a structure of an upper die and a lower die, a pressure sensor 1 is fixed in the upper die 3, the pressure sensor 1 is of an RDF-K36 type, the pressure sensor 1 is fixed through a fixing screw 2, a motor shaft 4 is connected to a central induction position of the pressure sensor 1 in a penetrating way, press-mounting force is provided for the motor shaft 4, a press-mounting state of the motor shaft 4 is monitored, and a front baffle 5 and a rear baffle 8 are respectively pressed by the upper die 3 and the lower die 9;
The front baffle 5 and the rear baffle 8 adopt clamping structures, the axle center holes of the front baffle 5 and the rear baffle 8 are matched with the motor shaft 4 to realize an internal and external fixing mode, the magnet 6 is fixed in an iron core groove of the rotor iron core 7, the rotor iron core 7 is composed of stacked silicon steel sheets, the front baffle 5 comprises an annular front baffle body, connecting columns are arranged on the annular front baffle body, connecting holes corresponding to the connecting columns are formed in the rotor iron core 7, the front baffle body is fixedly clamped with the side wall of the rotor iron core 7 through the connecting columns embedded in the holes of the rotor iron core 7 to form connection, the center holes of the front baffle 5 are in interference fit with the motor shaft 4, the height of the magnet 6 is higher than that of the rotor iron core 7, the rotor iron core 7 is clamped in the rotor iron core 7 through side holes of the rotor iron core 7, and the rear baffle 8 is installed in the connecting holes of the rotor iron core 7 through the connecting columns. The front baffle plate 5 and the connecting columns on the rear baffle plate 8 are clamped in the rotor core 7, and the front baffle plate 5 and the rear baffle plate 8 are attached to the rotor core 7 when the motor shaft 4 is pressed.
The center position of the lower die 9 adopts a through hole design, the motor shaft 4 is connected through the center through hole of the lower die 9 in a penetrating way, and the press fitting depth of the motor shaft 4 is determined by the position of the pressure sensor 1. The motor shaft 4, the front baffle 5, the magnet 6, the rotor core 7 and the rear baffle 8 constitute the rotor assembly 10.
When the motor is used, the rear baffle plate 8 is pre-clamped on the rotor core 7, 10 magnets 6 are taken to be installed in corresponding holes described by the rotor core 7 according to polarity requirements, the front baffle plate 5 is taken to be pre-installed above the rotor core 7, the pre-installed rotor assembly 10 is placed in the lower die 9, starting equipment is used for press-fitting, after the front baffle plate and the rear baffle plate are press-fitted, the motor shaft 4 is clamped in the rotor assembly 10, and the starting equipment is used for press-fitting the motor shaft 4 to the corresponding position of the rotor assembly 10.
The method comprises the following specific implementation steps:
When the motor is used, the rear baffle plate 8 is pre-clamped on the rotor core 7, 10 magnets 6 are taken to be installed in corresponding holes described by the rotor core 7 according to polarity requirements, the front baffle plate 5 is taken to be pre-installed above the rotor core 7, the pre-installed rotor assembly 10 is placed in the lower die 9, starting equipment is used for press-fitting, after the front baffle plate and the rear baffle plate are press-fitted, the motor shaft 4 is clamped in the rotor assembly 10, and the starting equipment is used for press-fitting the motor shaft 4 to the corresponding position of the rotor assembly 10. The tool facility can use one set of tool to simultaneously finish the press mounting of the front baffle and the rear baffle of the rotor core 7 and the motor shaft 4, and the post working time is reduced by 5-10S compared with the press mounting of double equipment and double tools. When the front baffle and the rear baffle are pressed, force is mainly applied to the groove positions of the connecting columns, and when the motor shaft 4 is pressed, the pressure sensor 1 can monitor the pressing position and the pressure of the motor shaft 4, so that the guarantee of the pressing consistency of general pressing equipment is met, the fixing strength of the structure of the product is guaranteed through the front baffle and the rear baffle of the product and the control of the pressing points, and the product is light in weight and has better reliability.
The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.
Claims (5)
1. The motor rotor press-fitting tool is characterized by comprising a press-fitting tool main body, wherein the press-fitting tool adopts a structure of an upper die and a lower die, a pressure sensor is fixed in the upper die and is fixed through a fixing screw, a motor shaft is connected to the central induction position of the pressure sensor in a penetrating way, press-fitting force is provided for the motor shaft, the press-fitting state of the motor shaft is monitored, and a front baffle plate and a rear baffle plate are respectively pressed on the upper die and the lower die;
The front baffle and the rear baffle adopt clamping structures, the axle center holes of the front baffle and the rear baffle are matched with the motor shaft to realize an internal and external fixing mode, a magnet is fixed in an iron core groove of the rotor iron core, the rotor iron core is composed of superposed silicon steel sheets, the front baffle comprises an annular front baffle body, connecting columns are arranged on the annular front baffle body, corresponding connecting holes corresponding to the connecting columns are formed in the rotor iron core, the front baffle body is fixedly clamped with the side wall of the rotor iron core through the connecting columns embedded in the holes of the rotor iron core to form connection, the center holes of the front baffle are in interference fit with the motor shaft, the height of the magnet is higher than that of the rotor iron core, the rotor iron core is clamped in through side holes of the rotor iron core, and the rear baffle is installed in the connecting holes of the rotor iron core through the connecting columns.
2. The motor rotor press-fitting tool according to claim 1, wherein the connecting posts on the front baffle plate and the rear baffle plate are clamped in the rotor core, and the front baffle plate and the rear baffle plate are attached to the rotor core during press-fitting of the motor shaft.
3. The motor rotor press-fitting tool according to claim 1, wherein a through hole is formed in the center of the lower die, the motor shaft is connected to the through hole through the center of the lower die in a penetrating manner, and the press-fitting depth of the motor shaft is determined by the position of the pressure sensor.
4. The tooling of claim 1, wherein the pressure sensor is of the type RDF-K36.
5. The motor rotor press-fit tooling of claim 1, wherein the motor shaft, front baffle, magnet, rotor core and rear baffle form a rotor assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322552801.6U CN220857861U (en) | 2023-09-20 | 2023-09-20 | Motor rotor press-fitting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322552801.6U CN220857861U (en) | 2023-09-20 | 2023-09-20 | Motor rotor press-fitting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220857861U true CN220857861U (en) | 2024-04-26 |
Family
ID=90742190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322552801.6U Active CN220857861U (en) | 2023-09-20 | 2023-09-20 | Motor rotor press-fitting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220857861U (en) |
-
2023
- 2023-09-20 CN CN202322552801.6U patent/CN220857861U/en active Active
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