CN215698027U - Rotor of spindle device - Google Patents
Rotor of spindle device Download PDFInfo
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- CN215698027U CN215698027U CN202122091251.3U CN202122091251U CN215698027U CN 215698027 U CN215698027 U CN 215698027U CN 202122091251 U CN202122091251 U CN 202122091251U CN 215698027 U CN215698027 U CN 215698027U
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- rotating shaft
- permanent magnet
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Abstract
The utility model relates to the technical field of machining, and particularly discloses a rotor of a main shaft device, which comprises a rotor body, wherein a permanent magnet section and a non-permanent magnet section are arranged on the rotor body, a winding is arranged on the permanent magnet section, the non-permanent magnet section is fixedly connected to a rotating shaft through a plurality of pins, the pins are uniformly distributed along the circumferential direction of the rotating shaft, and the rotor body is in clearance fit with the rotating shaft. This scheme sets up non-permanent magnetism section and passes through pin fixed connection with the pivot for the process of installation rotor becomes simple quick, and the installation of a plurality of pins makes rotor and pivot installation more firm, has solved the assembly degree of difficulty that the rotor installation exists among the prior art and has big or the installation has the problem that the pine takes off.
Description
Technical Field
The utility model relates to the technical field of machining, in particular to a rotor of a spindle device.
Background
High-speed precision spindle devices such as electric spindles, which are used as marking functional parts of modern machine tools, are rapidly developed and perfected in several years, are applied to various machine tools such as turning, milling and grinding, the spindle device is a preferred component in a high-grade machining center, and comprises a rotating shaft, a rotor, a stator and the like, wherein the end part of the rotating shaft is used for fixing the knife handle mechanism, the rotor is fixedly connected with the rotating shaft, the fixed connection of the rotor and the rotating shaft needs to ensure the installation stability of the rotor and the rotating shaft without damaging the magnetic field on the rotor, the fixed connection is accomplished by interference fit of the rotor with the rotating shaft, however this interference fit, when the rotor is sleeved, the rotor is required to be heated and extruded into the rotating shaft under the strong knocking, this type of assembly is time consuming and laborious, the assembly effect is difficult to guarantee, and there are also situations where the rotor or the shaft is damaged. In order to reduce the assembly difficulty in the prior art, the rotor is usually bonded on the rotating shaft by adopting a viscose mode, but the viscose mode has the risk of loosening after the rotor rotates for a long time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a rotor of a spindle device, and solves the problems that in the prior art, the rotor is difficult to assemble or loose in installation.
In order to achieve the above object, the basic scheme of the utility model is as follows:
the rotor of the main shaft device comprises a rotor body, wherein a permanent magnet section and a non-permanent magnet section are arranged on the rotor body, a winding is arranged on the permanent magnet section, the non-permanent magnet section is fixedly connected to a rotating shaft through a plurality of pins, the plurality of pins are uniformly distributed along the circumferential direction of the rotating shaft, and the rotor body is in clearance fit with the rotating shaft.
Compare the beneficial effect in prior art:
when this scheme of adoption, the permanent magnetism section of rotor is used for producing magnetic field, utilize non-permanent magnetism section and pivot to pass through pin fixed connection, a plurality of pin is at pivot circumference equipartition, the symmetry of non-permanent magnetism section installation in the pivot has been guaranteed, simultaneously including the clearance fit of rotor body with the pivot, make the process of installation rotor become simple quick, the installation because of a plurality of pins makes the steadiness of rotor and pivot installation improve simultaneously, compare prior art, both taken into account the firm requirement of installation, the requirement of the assembly degree of difficulty has been compromise again, the magnetic field of permanent magnetism section has still been satisfied simultaneously and is not influenced.
Furthermore, can dismantle on the non-permanent magnetism section and be connected with the position sleeve, a plurality of pin is with position sleeve fixed connection in the pivot, and every pin all radially sets up along the pivot.
Has the advantages that: when this scheme of adoption, because of just having the non-permanent magnetism section originally on the rotor that has now, but the length of non-permanent magnetism section is long inadequately, can be under the condition of not changing current rotor after the position sleeve installation, only newly increase a position sleeve just can install original rotor fast and firmly in the pivot, reduce the installation degree of difficulty and reduce improvement cost.
Furthermore, the position sleeve and the non-permanent magnetism section form fixed connection through a plurality of screw, and a plurality of screw is along pivot circumference equipartition, and every screw is equal to the axial setting.
Has the advantages that: the screw connection is simple and convenient, and the connection is more stable; in addition, the screw is axially arranged, so that the influence of the screw on a magnetic field is favorably reduced.
Further, the length of the screw extending into the non-permanent magnetic section is less than or equal to half of the length of the non-permanent magnetic section; this scheme is favorable to reducing the influence of screw to magnetic field.
Further, the outer diameter of the non-permanent magnetic section is smaller than that of the permanent magnetic section. This scheme is favorable to reducing the surface machining degree of difficulty of rotor.
Furthermore, one end of the rotating shaft, which is used for installing the cutter handle mechanism, is provided with an inner hole conical surface, an annular groove is arranged on the inner hole conical surface, and the annular groove is positioned in the middle of the inner hole conical surface.
Has the advantages that: in the prior art, a tool holder conical surface matched with the inner hole conical surface is arranged on the tool holder mechanism, however, the tool holder mechanism needs to be loosened from the rotating shaft every time the tool is changed, the tool changing times are more, namely the inner hole conical surface and the tool holder conical surface are frequently attached and separated from each other, so that the inner hole conical surface is easy to wear, and the positioning precision of the rotating shaft is influenced; according to the scheme, the annular groove is formed in the inner hole conical surface of the rotating shaft, so that the contact area between the inner hole conical surface and the cutter handle conical surface is reduced, and the abrasion of the inner hole conical surface is further reduced; in addition, the annular groove is located in the middle, so that the front part and the rear part of the conical surface of the cutter handle are in contact with the conical surface of the inner hole for a long time, and the positioning requirement of the cutter handle mechanism is met.
Further, the taper of the inner hole conical surface is 7: 24.
Has the advantages that: the precision of the machining process can be guaranteed under the taper, the cutting force borne by the machining process of the cutter handle mechanism can be overcome by the tension and pressure friction force exerted on the cutter handle mechanism by the main shaft device under the taper, the vibration of the rotating shaft caused by the cutting force is reduced, and the service life of the rotating shaft is prolonged.
Drawings
FIG. 1 is a front cross-sectional view of an embodiment of the present invention after use on a spindle assembly;
FIG. 2 is an isometric view of an embodiment of the utility model;
FIG. 3 is a three-dimensional view of another perspective of an embodiment of the present invention
Fig. 4 is a front sectional view of the present embodiment.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the rotor comprises a rotating shaft 1, an inner hole conical surface 11, an annular groove 12, a positioning sleeve 2, a rotor body 3, a permanent magnet section 31, a non-permanent magnet section 32, a pin 4, a screw 5 and a cutter handle mechanism 6.
Examples
The embodiment is basically as shown in fig. 1 to 4, a rotor of a spindle device includes a rotor body 3, a permanent magnet section 31 and a non-permanent magnet section 32 are integrally formed on the rotor body 3, the two ends of the permanent magnet section 31 are the non-permanent magnet sections 32, the outer diameter of the non-permanent magnet section 32 is smaller than that of the permanent magnet section 31, the permanent magnet section 31 is provided with a winding (not shown in the figure), the end of one of the non-permanent magnet sections 32 is fixedly connected with a positioning sleeve 2, the positioning sleeve 2 is fixedly connected with the non-permanent magnet section 32 through a plurality of screws 5, each screw 5 is axially arranged, the plurality of screws 5 are circumferentially and uniformly distributed along a rotating shaft 1, and the length of the screw 5 extending into the non-permanent magnet section 32 is smaller than or equal to half of the length of the non-permanent magnet section 32; the locating sleeve 2 is fixedly connected with the rotating shaft 1 through a plurality of pins 4, each pin 4 is radially distributed in the rotating shaft 1, the plurality of pins 4 are uniformly distributed along the circumferential direction of the rotating shaft 1, and the rotor body 3 is in clearance fit with the rotating shaft 1.
An inner hole conical surface 11 is integrally formed at one end of the rotating shaft 1, which is used for installing the cutter handle mechanism 6, an annular groove 12 is formed in the inner hole conical surface 11, the annular groove 12 is located in the middle of the inner hole conical surface 11, the taper of the inner hole conical surface 11 is 7:24, and the precision grade of the taper is less than or equal to 8 grade.
The specific implementation process is as follows:
when the embodiment is adopted, when the rotor is installed on the rotating shaft 1, the non-permanent magnet section 32 of the rotor and the positioning sleeve 2 are fixedly connected through the screw 5, then the whole formed by the positioning sleeve 2 and the rotor is installed on the rotating shaft 1, and finally the positioning sleeve 2 and the rotating shaft 1 are fixedly connected through the pin 4, so that the fixed connection of the rotor on the rotating shaft 1 is completed.
The permanent magnet section 31 of the rotor is used for generating a magnetic field, the non-permanent magnet section 32 is fixedly connected with the rotating shaft 1 through the pins 4, and the pins 4 are uniformly distributed on the circumference of the rotating shaft 1, so that the symmetry of the rotor on the rotating shaft 1 is ensured, and the rotor body 3 is in clearance fit with the rotating shaft 1, so that the process of mounting the rotor is simple and quick; in addition, the installation of the pin 4 improves the installation stability of the rotor and the rotating shaft 1, compared with the prior art, the installation stability requirement is considered, the assembly difficulty requirement is also considered, and meanwhile, the requirement that the magnetic field of the permanent magnet section 31 is not influenced is also met.
In addition, in the embodiment, the annular groove 12 is formed in the inner hole conical surface 11 of the rotating shaft 1, so that the contact area between the inner hole conical surface 11 and the cutter handle conical surface is reduced, and further, the abrasion of the inner hole conical surface 11 is reduced; in addition, the annular groove 12 is located in the middle, so that the front part and the rear part of the conical surface of the cutter handle are in contact with the conical surface 11 of the inner hole for a long time, and the positioning requirement of the cutter handle mechanism 6 is met.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. The rotor of the spindle unit includes a rotor body, characterized in that: the permanent magnet section and the non-permanent magnet section are arranged on the rotor body, the permanent magnet section is provided with a winding, the non-permanent magnet section is fixedly connected to the rotating shaft through a plurality of pins, the plurality of pins are uniformly distributed along the circumferential direction of the rotating shaft, and the rotor body is in clearance fit with the rotating shaft.
2. The rotor of a spindle device according to claim 1, characterized in that: the non-permanent-magnet section is detachably connected with a locating sleeve, the locating sleeve is fixedly connected to the rotating shaft through a plurality of pins, and each pin is radially arranged along the rotating shaft.
3. The rotor of the spindle device according to claim 2, wherein: the locating sleeve and the non-permanent magnet section form fixed connection through a plurality of screws, the plurality of screws are uniformly distributed along the circumferential direction of the rotating shaft, and each screw is axially arranged.
4. The rotor of the spindle device according to claim 3, wherein: the length of the screw extending into the non-permanent magnetic section is less than or equal to half of the length of the non-permanent magnetic section.
5. The rotor of a spindle device according to claim 1, characterized in that: the outer diameter of the non-permanent magnetic section is smaller than that of the permanent magnetic section.
6. The rotor of a spindle device according to claim 1, characterized in that: one end of the rotating shaft, which is used for installing the cutter handle mechanism, is provided with an inner hole conical surface, the inner hole conical surface is provided with an annular groove, and the annular groove is positioned in the middle of the inner hole conical surface.
7. The rotor of the spindle device according to claim 6, wherein: the taper of the inner hole conical surface is 7:24, and the precision grade of the taper is less than or equal to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122091251.3U CN215698027U (en) | 2021-08-31 | 2021-08-31 | Rotor of spindle device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122091251.3U CN215698027U (en) | 2021-08-31 | 2021-08-31 | Rotor of spindle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215698027U true CN215698027U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122091251.3U Active CN215698027U (en) | 2021-08-31 | 2021-08-31 | Rotor of spindle device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215698027U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115224868A (en) * | 2022-08-24 | 2022-10-21 | 扬州市华胜机电制造有限公司 | High-efficiency permanent magnet motor spindle and manufacturing process thereof |
-
2021
- 2021-08-31 CN CN202122091251.3U patent/CN215698027U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115224868A (en) * | 2022-08-24 | 2022-10-21 | 扬州市华胜机电制造有限公司 | High-efficiency permanent magnet motor spindle and manufacturing process thereof |
| CN115224868B (en) * | 2022-08-24 | 2023-11-07 | 江苏华胜电机(集团)有限公司 | Permanent magnet motor spindle and manufacturing process thereof |
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