JP3094171U - Adjustment structure of stator assembly for spindle motor of disk drive - Google Patents

Abstract

(57) Abstract: A plurality of adjusting members are used to align with a plurality of positioning holes, adjust a distance between a stator set and a fixed board, and correct an inclined state between the stator set and the fixed board. Accordingly, it is an object of the present invention to provide a stator assembly adjustment structure of a spindle motor of a disk drive, which can make balance adjustment of a stator assembly quicker and easier. A plurality of adjusting members and a plurality of positioning holes are included. The positioning holes are installed on a stator set or a fixed substrate so as to be equiangular and symmetrical, and the adjusting member is formed to be screwed into the positioning holes and abutted between the stator set and the fixed substrate, By changing the degree of contact of the adjusting member, the distance between the stator set and the fixed board can be adjusted, so that the relative horizontal positioning between the stator set and the fixed board is completed. It is configured.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a stator assembly adjusting structure for a spindle motor of a disk device. , Especially the main shaft motor of the disk device uses a plurality of adjusting members, Adjust the distance between the rear and the rotor hub to balance the disk carrier. The disk carrier of the spindle motor of the disk device that can adjust the state quickly. A. It relates to the adjustment structure.

[0002]

[Prior art]

  Conventionally, this kind of thing is as follows.

[0003]   As shown in Figs. Disk carrier 10, shaft 20, rotor hub 30, and stator assembly 40. Get caught A holding seat 11 for locking and mounting the disc on the disc carrier 10. Is provided, and the shaft 20 is connected to the disc carrier 10 and the rotor hub 30. And a shaft tube 41 is fixedly installed in the stator set 40, and is used for controlling the circuit board 42. As a result, an alternating magnetic field is formed, and the rotor hub 30 further has an alternating magnetic field of the stator assembly 40. Since the annular magnet 31 that can induce the magnetic field is provided in a ring, the disk carrier 10 And that the discs can be interlocked to rotate at the same time There is.

[0004]

[Problems to be solved by the device]

  Regarding the main shaft motor of the conventional disk device described above, the disk carrier 10 When the disk carrier 10 was initially assembled on the shaft 20, the disk carrier 10 was attached to the rotor hub 30. Tend to be slightly tilted, so keep it parallel to the rotor hub 30 Becomes difficult. In addition, the inclination of the disc carrier 10 is applied to the disc device. Use lathes in the industry to avoid the effects of rotational equilibrium and yield of finished products It is usual to process and polish the upper inclined side of the disk carrier 10. As described above, the thickness of the disk carrier 10 on the inclined side is polished from a to b. Due to, the whole surface of the disk carrier 10 is parallel to the rotor hub 30. Can be kept in equilibrium and rotated. However, those who use the lathe mentioned above In the formula, the tilted state of the disk carrier 10 can be corrected and adjusted, but At the same time correcting the tilted state in which the data set 40 or the shaft tube 41 is generated with respect to the fixed substrate 42. Therefore, due to the distortion of the shaft tube 41, the shaft 20, the disk carrier 1 0, there is a problem that the rotor hub 30 is inclined. further , The equilibrium state of the disk carrier 10 during the polishing process by the lathe processing method described above. Since it is necessary to repeatedly measure the state, not only the manufacturing process becomes long, but Excessive destructive polishing will improve the strength and rotation of the structure of the disk carrier 10. There was a problem that it affects stability.

[0005]   The present invention has been made in view of these problems, and has its object. However, by installing a plurality of adjusting members, the stator of the spindle motor of the disk device Abutting between the set and the fixed substrate, just by changing the degree of contact of the adjusting member, it is destroyed. Adjust the gap between the stator assembly and the fixed board without using the By correcting the inclination state of the stator set with respect to the fixed substrate, the stay The rotor assembly and the fixed substrate can be kept horizontal, and the rotor rotation is balanced. As a result, the horizontal positioning of the stator assembly can be adjusted reliably and easily. To provide a stator set adjusting structure for a spindle motor of a disk device capable of performing It is a thing.

[0006]   A first object of the present invention is to use a plurality of adjusting members to form a stator set and a fixed substrate. By adjusting the gap between the stator and the tilted state between the stator set and the fixed substrate. Spindle spindle of disk drive that can make balance adjustment of data set faster and easier It is intended to provide a stator set adjusting structure for a motor.

[0007]   A second object of the present invention is to use a plurality of adjusting members to combine a plurality of positioning holes. Adjust the gap between the stator set and the fixed substrate, and tilt the stator set and the fixed substrate. Correcting the condition makes balancing the stator assembly quicker and easier. An attempt is made to provide a stator assembly adjusting structure for a spindle motor of a disk device capable of achieving It is something.

[0008]   A third object of the present invention is to use a plurality of adjusting members to separate the gap between the shaft tube and the fixed substrate. The shaft tube and the stator assembly to correct the tilted state with respect to the fixed substrate. , Of the disk device that can make the balance adjustment of the stator set faster and easier It is intended to provide a stator set adjusting structure for a spindle motor.

[0009]

[Means for Solving the Problems]

  In order to achieve the above-mentioned object, the spindle motor of the disk device according to the present invention is operated in a stationary manner. The data set adjusting structure is as follows. That is,   Spindle motor stator of a disk drive including at least one adjusting member It is a group adjustment structure. The adjusting member should be abutted between the stator assembly and the fixed substrate. Therefore, by changing the degree of contact of the adjusting member, By adjusting and adjusting the gap with the fixed board and the tilted state, Complete the relative horizontal positioning between the and the fixed substrate.

[0010]   Further, the stator assembly adjusting structure of the spindle motor of the disk device of the present invention is as follows. It can also be configured as follows. 1. The adjusting member is a screw. 2. The adjusting member includes a plurality of pillars having different lengths. 3. The adjusting member includes a plurality of elastic members having different elastic coefficients. 4. The adjusting member is made of metal, alloy or plastic. 5. The adjusting member is fixed by a method such as welding, heat welding, or adhesive attachment. 6. The stator assembly has a plurality of positioning holes for screwing an adjusting member. The stator assembly by changing the degree to which the adjustment member is screwed into the positioning hole. Adjust the space between the fixed board and the fixed board. 7. The positioning holes are installed in the stator set so as to be equiangular and symmetrical. 8. The positioning hole is installed at the center of the stator assembly. 9. The positioning holes are installed in a plurality of pole columns of the stator set. 10. In addition, a plurality of positioning holes for screwing an adjusting member are formed on the fixed substrate. The stator assembly by changing the degree to which the adjustment member is screwed into the positioning hole. Adjust the space between the fixed board and the fixed board. 11. The positioning holes are installed on the fixed substrate so as to be equiangular and symmetrical. 12. Other flanges are provided on the upper and lower peripheral edges of the positioning hole. 13. The adjusting member is formed so as to contact the central portion of the stator assembly. 14. The adjusting member is formed so as to abut on the plurality of pole columns of the stator set. 15. The stator assembly is fitted to the shaft tube, and the shaft tube is additionally provided with an annular plate. A positioning hole for screwing the adjusting member is formed in the plate, and the adjusting member is provided with the positioning hole. By changing the degree of screwing on the shaft Adjust the distance from the fixed substrate. 16. The positioning holes are installed on the annular plate of the shaft tube so as to be equiangular and symmetrical. . 17. Other flanges are provided on the upper and lower peripheral edges of the positioning hole. 18. In the stator set corresponding to the positioning hole of the shaft tube, a plurality of A hole is provided, and the through hole is used to adjust the degree of screwing of the adjusting member. 19. The stator assembly is fitted to the shaft tube, and the shaft tube is additionally provided with an annular plate. The fixed substrate located below the plate has a plurality of positioning holes for screwing the adjusting member. By changing the degree to which the adjustment member is drilled and screwed into the positioning hole, The distortion state is corrected to adjust the gap between the stator set and the fixed substrate. 20. The positioning holes are fixed below the annular plate so that they are equiangular and symmetrical. It is installed on a fixed board. 21. Other flanges are provided on the upper and lower peripheral edges of the positioning hole.

[0011]

[Embodiment of device]

  Embodiments of the present invention will be described below with reference to the drawings.

[0012]   FIG. 3 is a stator assembly adjusting mechanism of a spindle motor of a disk device according to a first embodiment of the present invention. FIG. 4 is an exploded perspective view of the structure, and FIG. 4 is a spindle motor of the disk device according to the first embodiment of the present invention. Sectional view of the assembled stator assembly adjustment structure before performing balance adjustment FIG. 5 shows the adjustment of the stator assembly of the spindle motor of the disk device according to the first embodiment of the present invention. FIG. 6 is a cross-sectional view of the assembled structure after the structure has been balanced. Of the spindle motor of the disk device according to the second embodiment by the stator set adjusting structure FIG. 7 is a sectional view of the state of the disk drive, and FIG. FIG. 8 is an exploded perspective view of the stator assembly adjusting structure of FIG. Sectional view of assembled state by stator assembly adjustment structure of spindle motor of disk device FIG. 9 is a stator set adjustment of the spindle motor of the disk device according to the fourth embodiment of the present invention. It is sectional drawing of the state assembled by the structure.

[0013]   The partial member of the stator assembly adjusting structure of the spindle motor of the disk device of the present invention is Since the structure of the spindle motor of the conventional disk drive in the conventional technology is the same, The parts of the same part of the person are marked here with the same reference numerals, so that I will not explain.

[0014]

First Embodiment   Referring to FIG. 3, the main shaft motor of the disk device according to the first embodiment of the present invention is installed. The data set adjusting structure mainly includes a plurality of adjusting members 43 and a plurality of positioning holes 401. included. Positioning holes 401 in stator assembly 40 should be equiangular and symmetrical. The adjustment member 43 is installed in the central portion 402 and is screwed into the positioning hole 401. Therefore, the stator set 40 and the fixed substrate 42 are formed so as to come into contact with each other. like this In addition, in the present invention, the stator assembly 4 can be adjusted by simply adjusting the degree of contact of the adjusting member 43. 0 and the fixed substrate 42 can be quickly adjusted, so that the stator assembly It is possible to complete the relative horizontal positioning between 40 and the fixed substrate 42. Wear.

[0015]   Referring to FIGS. 3, 4 and 5, the stator set adjusting structure according to the first embodiment of the present invention is as follows. A plurality of adjusting members 43 and a plurality of positionings in a spindle motor of a disk device The hole 401 is installed. The main shaft motor of the above-mentioned disk device has a disk The carrier 10, the shaft 20, the rotor hub 30, and the stator set 40 are included. De The disk carrier 10 is integrally coupled with the shaft 20 and the rotor hub 30. And the stator set 40 can be driven by the alternating magnetic field generated. You can The adjusting member 43 is preferably made of a screw, and is made of metal, alloy, or plastic. The stator set 40 and the fixed base plate 42 can be manufactured by a tick. Can be assembled in the gap 44 formed between the two. Positioning holes 401 etc. It is installed in the central portion 402 of the stator set 40 so as to be angular and symmetrical (for example, In the case of the three positioning holes 401, the center part should be symmetrical so that the angle is 120 °. Installed at 402. ), The positioning hole 401 is used for screwing the adjusting member 43. To be In this way, the stator set 40 is mounted on the disk carrier 10, the shaft 20, and the rotor. The adjustment member 43 before the integral connection with the rotor hub 30. Since it is screwed so as to pass through the positioning hole 401 downward via the front surface of 2, It is formed so as to contact the upper surface of the fixed substrate 42. Therefore, in the present invention, , The degree to which the adjusting member 43 is screwed into the positioning hole 401 (the degree of contact) can be changed. Therefore, it is possible to quickly adjust the distance between the stator set 40 and the fixed substrate 42. Together, the relative horizontal positioning between the stator set 40 and the fixed substrate 42 is performed. Can be surely completed.

[0016]   Referring to FIGS. 4 and 5, the adjustment structure of the stator assembly according to the first embodiment of the present invention is tilted. When used in the oblique stator set 40, the user may install the stator set 40 in the disk carrier. Before connecting them integrally with the shaft 10, the shaft 20 and the rotor hub 30, Position the appropriate number of adjusting members 43 on one side with the central portion of the stator assembly 40 inclined downward. The adjusting member 43 is screwed into the female hole 401, and the adjusting member 43 is positioned from the upper part of the central portion 402. By screwing downward so as to pass through 401, the front surface of the fixed substrate 42 is abutted. Contact. Then, simply by changing the degree of screwing (abutting degree) of each adjusting member 43, The size and inclination of the gap 44 between the stator set 40 and the fixed substrate 42 can be adjusted quickly. Since the stator set 40 and the fixed substrate 42 can be aligned, the relative The horizontal positioning can be completed. Further, the present invention is based on the above-mentioned balance adjustment method. After completing the sequence, melt the adjusting member 43 depending on the material (metal, alloy, plastic). By fixing the adjusting member 43 by selecting a method such as contacting, heat welding, or attaching an adhesive, It is possible to prevent the adjusting member 43 from loosening and falling off, and It is possible to avoid the set 40 from tilting again.

[0017]   Further, the positioning hole 401 of the present invention may be installed in the stator assembly 40 according to the demand of use. Can be installed in opposite radial positions of, for example, inside the stator set 40. Can be installed on the central portion 402 of the magnetic pole or on the pole 403 outside the central portion. Other In addition, since the anti-slip pad 12 is installed on the upper surface of the disk carrier 10, Avoid slipping of the disc against the disc carrier 10 during rotation it can.

[0018]

Embodiment 2   Referring to FIG. 6, the main shaft motor of the disk device according to the second embodiment of the present invention will be described. The stator set adjusting structure includes a plurality of adjusting units between the stator set 40 and the fixed substrate 42. The material 43 'and a plurality of positioning holes 421 are installed to adjust the tilted stator set 40. It is something that is adjusted. In comparison with the first embodiment, the positioning is performed in the second embodiment of the present invention. The hole 421 is formed in the fixed substrate 42, and the adjusting member 43 ′ is the bottom of the fixed substrate 42. Since it is screwed so as to pass through the positioning hole 421 from the side upward, the stator assembly 4 It is formed so as to be in contact with the back surface of 0. Therefore, in the second embodiment of the present invention, Also, similarly to the first embodiment, the degree of screwing (abutting degree) of each adjusting member 43 'is changed. The size and inclination of the gap 44 between the stator assembly 40 and the fixed substrate 42 Since it can be adjusted quickly, it can be placed between the stator assembly 40 and the fixed substrate 42 only. The relative horizontal positioning can be completed.

[0019]   Further, the positioning hole 421 is provided inside the fixed substrate 42 or according to the demand of use. Can be installed outside freely, so that the central portion 402 of the stator assembly 40 Alternatively, it can be brought into contact with the pole post 403. And the upper circumference of the positioning hole 421 A flange 422 is selectively provided on the edge or the lower peripheral edge so that the position can be determined. The structure of the hole 421 can be strengthened.

[0020]

Third Embodiment   Referring to FIGS. 7 and 8, a spindle motor of a disk device according to a third embodiment of the present invention. A plurality of stator assembly adjusting structures are provided between the stator assembly 40 and the fixed substrate 42. Adjustment member 43 ″ and a plurality of positioning holes 411 are installed to adjust the distorted shaft tube 41. To do. Compared with the first and second embodiments, the third embodiment of the present invention In addition, the positioning hole 411 is formed in the annular plate 412 annularly installed in the shaft tube 41. Further, the adjusting member 43 ″ is positioned downward from the positioning hole 411 of the annular plate 412. Since it is screwed so as to pass through 12, it is formed so as to abut the surface of the fixing plate 42. To be done. Therefore, also in the third embodiment of the present invention, the screwing of each adjustment member 43 ″ is performed. By simply changing the degree (abutting degree), the distortion state of the shaft tube 41 can be quickly adjusted and further Then, the inclination state of the stator set 40 and the fixed substrate 42 can be corrected. Therefore, the relative horizontal positioning between the stator set 40 and the fixed substrate 42 is completed. Can be made.

[0021]   Further, in the stator assembly 40 according to the third embodiment of the present invention, the annular plate 412 is drilled. A plurality of through holes 404 should be formed corresponding to the positioning holes 411 formed. According to, the user attaches the stator assembly 40 to the shaft tube 41 and then uses the tool. It is possible to adjust the degree of screwing of the adjusting member 43 ″ via the through hole 404. Wear. Then, a flange ( It is possible to strengthen the structure of the positioning hole 411 by providing (not shown). it can. Further, the annular plate 412 is preferably formed integrally with the shaft tube 41.

[0022]

Fourth Embodiment   Referring to FIG. 9, a spindle motor of a disk device according to a fourth embodiment of the present invention will be described. The stator set adjusting structure includes a plurality of adjusting units between the stator set 40 and the fixed substrate 42. Material 43 "and a plurality of positioning holes 423 are installed to adjust the distorted shaft tube 41. Is. In the fourth embodiment of the present invention, the positioning is performed as compared with the first, second and third embodiments. The female hole 423 is formed in the annular plate 412 that is annularly provided on the shaft tube 41 so as to be equiangular and symmetrical. The adjustment member 43 ″ is provided on the fixed substrate 42 located below, and the adjustment member 43 ″ is provided on the fixed substrate 42. Was screwed upward from the positioning hole 423 to pass through the positioning hole 423. Therefore, the shaft tube 41 is formed so as to contact the back surface of the annular plate 412. Therefore, the book Also in the fourth embodiment of the invention, the degree of screwing (abutting degree) of each adjusting member 43 ″ is determined. By simply changing it, the distortion state of the shaft tube 41 can be quickly adjusted, and the stator set 4 can be further advanced. Since the tilted state between 0 and the fixed substrate 42 can be corrected, The relative horizontal positioning with the fixed substrate 42 can be completed.

[0023]   Furthermore, the upper or lower peripheral edge of the positioning hole 423 according to the fourth embodiment of the present invention can be selected. The structure of the positioning hole 423 is strengthened by the flange 424 protruding selectively. Can be converted. Furthermore, the annular plate 412 is preferably formed integrally with the shaft tube 41. It is suitable.

[0024]   In addition, the adjusting members 43, 43 ′, 43 ″ and the positioning members according to the embodiments of the present invention may be used. The holes 401, 411, 421, and 423 are formed in the gap between the stator set 40 and the fixed substrate 42. The gap 44 can be replaced by other structures that can be adjusted, for example with different lengths. Placed with a plurality of pillars or a plurality of elastic members having different elastic coefficients. Can be exchanged.

[0025]   Referring again to FIGS. 1 and 3, the spindle motor of the disk device of the present invention is of the same type. The rotor assembly adjusting structure includes an adjusting member 43 and a position adjusting member between the stator assembly 40 and the fixed substrate 42. With the provision of the fixing hole 401, it is only necessary to change the degree of contact of the adjusting member 43. The gap between the theta set 40 and the fixed substrate 42 is adjusted, and the stator set 40 is fixed to the fixed base. The tilted state relative to the plate 42 can be corrected. Conventional disk drive spindle In the case of the motor, the disc that is ground by the lathe processing method that has The carrier 10 cannot only correct the inclination of the stator assembly and the shaft tube. In addition, the manufacturing process cannot be shortened, which further affects the strength of the structure. Since it has problems such as damage, the spindle motor of the disk device of the present invention has a The rotor assembly adjusting structure uses a non-destructive method to connect between the stator assembly 40 and the fixed substrate 42. The relative horizontal positioning in the Balancing can be made faster and easier

[0026]

[Effect of device]

  According to the stator assembly adjusting structure of the spindle motor of the disk device of the present invention, a plurality of Adjust the gap between the stator set and the fixed board using By correcting the tilt condition with the constant substrate, the balance adjustment of the stator set can be performed more quickly. It has the advantage of being simple.

[0027]   According to the stator assembly adjusting structure of the spindle motor of the disk device of the present invention, a plurality of Use the adjustment member of to align with the multiple positioning holes, and By adjusting the gap and correcting the inclination state between the stator set and the fixed substrate, The advantage is that balancing of the data sets can be made faster and easier.

[0028]   According to the stator assembly adjusting structure of the spindle motor of the disk device of the present invention, a plurality of Adjust the gap between the shaft tube and the fixed substrate using the adjustment member of to secure the shaft tube and stator assembly. By correcting the tilted state with respect to the constant board, the balance adjustment of the stator set can be performed more quickly. It has the advantage of being fast and easy.

[0029]   The present invention may be embodied in other ways without departing from its spirit and essential characteristics. Can be given. Accordingly, the preferred embodiments described herein are exemplary only. Thus, it is not limiting.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a disk carrier of a spindle motor of a conventional disk device in an assembled state before performing balance adjustment.

FIG. 2 is a cross-sectional view of a state in which a disk carrier of a spindle motor of a conventional disk device is assembled after performing balance adjustment.

FIG. 3 is an exploded perspective view of a spindle motor stator assembly adjusting structure of the disk device according to the first embodiment of the present invention.

FIG. 4 is a cross-sectional view of an assembled state before the balance adjustment of the stator set adjustment structure of the spindle motor of the disk device according to the first embodiment of the present invention.

FIG. 5 is a cross-sectional view of the assembled state after the stator assembly adjusting structure of the spindle motor of the disk device according to the first embodiment of the present invention has been balanced.

FIG. 6 is a cross-sectional view showing a state in which the main body motor of the disk device according to the second embodiment of the present invention is assembled by the stator set adjusting structure.

FIG. 7 is an exploded perspective view of a spindle assembly of a disk device according to a third embodiment of the present invention, the structure being adjusted by a stator assembly.

FIG. 8 is a cross-sectional view of a spindle motor of a disk device according to a third embodiment of the present invention, which is assembled by a stator assembly adjusting structure.

FIG. 9 is a cross-sectional view of a disk drive according to a fourth embodiment of the present invention in an assembled state by a stator assembly adjusting structure of a spindle motor.

[Explanation of symbols]

10 Disk Carrier 11 Clamping Seat 12 Anti-Slip Pad 20 Shaft 30 Rotor Hub 31 Annular Magnet 40 Stator Set 401 Positioning Hole 402 Central Part 403 Magnetic Pole 404 Through Hole 41 Shaft Tube 411 Positioning Hole 412 Annular Plate 42 Fixed Substrate 421 Positioning Hole 422 Flange 43, 43 ', 43 "adjustment member 44 gap

Claims (22)

[Scope of utility model registration request] 1. A stator assembly adjusting structure for a spindle motor of a disk device, comprising at least one adjusting member (43), said adjusting member (43) being a stator assembly (4).
0) and the fixed base plate (42), the degree of contact of the adjusting member (43) is changed so that the stator set (40) and the fixed base plate (42) are contacted with each other. A stator for a spindle motor of a disk drive, characterized in that the relative horizontal positioning between the stator set (40) and the fixed substrate (42) is completed by adjusting and adjusting the spacing and inclination state. Pair adjustment structure. 2. The stator set adjusting structure for a spindle motor of a disk drive according to claim 1, wherein the adjusting member (43) is a screw. 3. The stator set adjusting structure for a spindle motor of a disk device according to claim 1, wherein the adjusting member (43) is composed of a plurality of pillars having different lengths. 4. The stator set adjusting structure for a spindle motor of a disk device according to claim 1, wherein the adjusting member (43) is composed of a plurality of elastic members having different elastic coefficients. 5. The stator set adjusting structure for a spindle motor of a disk device according to claim 1, 2, 3 or 4, wherein the adjusting member (43) is made of metal, alloy or plastic. 6. The adjusting member (43) is welded, heat welded,
The stator set adjusting structure for a spindle motor of a disk device according to claim 1, wherein the structure is fixed by an adhesive attachment method. 7. A positioning hole (401) for screwing the adjusting member (43) to the stator assembly (40).
A plurality of holes are formed, and the distance between the stator assembly (40) and the fixed substrate (42) is adjusted by changing the degree to which the adjusting member (43) is screwed into the positioning hole (401). A stator set adjusting structure for a spindle motor of a disk device according to claim 1 or 2. 8. The stator set adjustment of a spindle motor of a disk drive according to claim 7, wherein the positioning holes (401) are installed in the stator set (40) so as to be equiangular and symmetrical. Construction. 9. The stator set adjusting structure for a spindle motor of a disk drive according to claim 7, wherein the positioning hole (401) is installed at a central portion (402) of the stator set (40). 10. The stator assembly of a spindle motor of a disk drive as claimed in claim 7, wherein the positioning holes (401) are installed in a plurality of pole posts (403) of the stator assembly (40). Adjustment structure. 11. A positioning hole (421) for screwing the adjusting member (43) to the fixed substrate (42).
By adjusting the degree to which the adjusting member (43) is screwed into the positioning hole (421), a distance between the stator set (40) and the fixed substrate (42) can be adjusted. A stator set adjusting structure for a spindle motor of a disk device according to claim 1 or 2. 12. The stator assembly adjustment of a spindle motor of a disk device according to claim 11, wherein the positioning holes (421) are installed on the fixed substrate (42) so as to be equiangular and symmetrical. Construction. 13. The upper peripheral edge of the positioning hole (421),
The stator assembly adjusting structure for the spindle motor of the disk device according to claim 11, wherein a flange (422) is additionally provided on the lower peripheral edge. 14. The stator of a spindle motor of a disk drive according to claim 11, wherein the adjusting member (43) is formed so as to abut a central portion (402) of the stator set (40). Pair adjustment structure. 15. The spindle according to claim 11, wherein the adjusting member (43 ′) is formed so as to abut against a plurality of magnetic pole posts (403) of the stator set (40). Motor stator assembly adjustment structure. 16. The stator set (40) comprises a shaft tube (4).
1), and the shaft tube (41) has an annular plate (4).
12) is annularly provided, and the annular plate (412) is provided with a positioning hole (411) for screwing the adjusting member (43 ″).
And the adjusting member (43 ″) is provided with a positioning hole (4 ″).
11) by changing the degree of screwing the shaft tube (41) to correct the distortion state of the stator assembly (40).
The stator set adjusting structure for a spindle motor of a disk device according to claim 1 or 2, wherein a gap between the fixed substrate (42) and the fixed substrate (42) is adjusted. 17. The annular plate (41) of the shaft tube (41) so that the positioning holes (411) are equiangular and symmetrical.
The stator set adjustment structure for a spindle motor of a disk device according to claim 16, wherein the stator set adjustment structure is installed in 2). 18. An upper peripheral edge of the positioning hole (411),
The stator assembly adjusting structure for a spindle motor of a disk drive according to claim 16, wherein a flange (422) is additionally provided on the lower peripheral edge. 19. A positioning hole (41) for the shaft tube (41).
In the stator assembly (40) corresponding to 1), a plurality of through holes (404) are additionally provided, and the through holes (404) adjust the screwing degree of the adjusting member (43 ″). The stator set adjusting structure for a spindle motor of a disk device according to claim 16, wherein. 20. The stator set (40) comprises a shaft tube (4
1), and the shaft tube (41) has an annular plate (4).
12) is annularly provided, and a plurality of positioning holes (423) for screwing the adjusting member (43 ″) are drilled in the fixed substrate (42) located below the annular plate (412).
By changing the degree to which the adjusting member (43 ″) is screwed into the positioning hole (423), the distortion state of the shaft tube (41) is corrected and the stator assembly (40) and the fixed substrate (42) are corrected. The interval between the two is adjusted.
Alternatively, the stator set adjusting structure of the spindle motor of the disk device described in 2. 21. The positioning hole (423) is installed in a fixed substrate (42) located below the annular plate (412) so as to be equiangular and symmetrical. Structure for adjusting the stator assembly of the main shaft motor of the disk drive. 22. The upper peripheral edge of the positioning hole (423),
21. The stator set adjusting structure for a spindle motor of a disk device according to claim 20, wherein a flange (424) is additionally provided on the lower peripheral edge.