WO2006090765A1 - ハード・ディスク・ドライブ用のベース及び製造方法 - Google Patents
ハード・ディスク・ドライブ用のベース及び製造方法 Download PDFInfo
- Publication number
- WO2006090765A1 WO2006090765A1 PCT/JP2006/303239 JP2006303239W WO2006090765A1 WO 2006090765 A1 WO2006090765 A1 WO 2006090765A1 JP 2006303239 W JP2006303239 W JP 2006303239W WO 2006090765 A1 WO2006090765 A1 WO 2006090765A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- base
- disk drive
- molded
- hard disk
- semi
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
- G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
- G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
- G11B21/20—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier
- G11B21/21—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier with provision for maintaining desired spacing of head from record carrier, e.g. fluid-dynamic spacing, slider
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49025—Making disc drive
Definitions
- the present invention relates to a base for a hard “disk” drive (HDD “Hard Disk Drive”) and a manufacturing method thereof.
- HDD Hard Disk Drive
- FIG. 5 is a plan view of a base used for the casing
- FIG. 6 is a sectional view thereof.
- a hard “disk” drive base 101 is provided with a recess 103 for mounting a motor, and a hole 105 is provided at the center of the recess 103.
- a disk drive motor spinneret is inserted into the hole 105 of the recess 103 of the base 101, and the disk drive motor is fixed to the recess 103 with screws or the like.
- the fixing work with screws or the like is complicated and the number of parts is large.
- FIG. 7 is a cross-sectional view of the main part with the disk drive motor installed.
- the base 107 in FIG. 7 includes a burring 111 in the through hole 109 as a motor fixing portion.
- Two recesses 113 are provided on the inner periphery of the burring 111 in a circular shape by cutting.
- the disk drive motor 115 is fitted to the inner periphery of the burring 111 and is fixed via an adhesive 117.
- the solidified adhesive is engaged with the recess 113, so that the disk drive motor 115 can be easily and firmly fixed to the burring 111 without using screws or the like.
- the recess 113 is additionally cut after the press molding of the burring 111, and dimensional accuracy is required to increase the processing accuracy. For this reason, quality is highly dependent on press accuracy and requires advanced technology in terms of accuracy control.
- Patent Document 1 Japanese Patent Laid-Open No. 9 120669
- Patent Document 2 JP-A-8-153386
- the present invention is mainly characterized in that a concave portion is pressure-molded on the inner periphery of the motor fixing portion in order to improve production capacity and yield and to be advantageous in terms of cost.
- the hard 'disk' drive base of the present invention is formed by pressing the recesses on the inner periphery of the motor fixing portion, it is not necessary to perform a cutting process, and the accuracy control can be facilitated. Since it does not come out, problems such as corrosion are suppressed, and measures such as burr treatment are not required. As a result, production capacity and yield are improved, and this is advantageous in terms of cost.
- FIG. 1 shows a base 1 for a hard disk drive according to Embodiment 1 of the present invention, and (a) shows
- FIG. 4B is a cross-sectional view taken along the arrow line SA-SA in FIG. 4A, and FIG.
- the base 1 is formed by press molding using, for example, a panel 3 of SPCE (a kind of SPC material, a cold-rolled steel sheet for deep drawing).
- Panel 3 has a circular shape when viewed from above.
- a protrusion 5 is provided.
- a circular through hole 7 is provided at the center of the convex portion 5.
- a burring 9 protruding in a cylindrical shape with a predetermined height and a circular section is integrally provided as a motor fixing portion. Burring 9 thickness T is press molding
- recesses 13 and 15 are provided by pressure molding such as press carriage.
- the recesses 13 and 15 are provided in a circular shape along the inner periphery of the burring 9.
- a plurality of, for example, two recesses are provided in the height direction of the burring 9.
- the cross sections of the recesses 13 and 15 have almost the same shape, depth, and width.
- a hard “disk” drive motor is fitted to the inner periphery of the burring 9 and fixed to the inner peripheral surface 11 with an adhesive. Therefore, since the solidified adhesive is engaged with the recesses 13 and 15, the motor can be easily and firmly fixed to the burring 9 without using screws or the like.
- FIG. 2 (a) is a plan view of the panel 3 after the semi-formed recess machining step, and (b) is (a).
- (C) is an enlarged cross-sectional view of the main part
- FIG. 3 (a) is a plan view of the panel 3 after the hole drilling process before burring
- (b) is (a) ) SC-SC cross-sectional view
- (c) is an enlarged cross-sectional view of the main part
- FIG. 4 (a) is a cross-sectional view before pressing the motor fixing part machining process
- (b) is a cross-sectional view after pressing. It is a figure
- the recesses 13 and 15 are formed by incorporating a semi-molded recess processing step integrally or as a separate process in the course of a series of press molding processes of the base 1.
- the semi-molded recesses 17 and 19 are formed as shown in FIG. 2 in the semi-molded recess processing step.
- a plurality of inner and outer concentric centers for example, two half-molded recesses 17 and 19 are formed by press molding using a press.
- Concentric holes 21 are formed.
- the diameter of the hole 21 is set to be smaller than the diameter of the punch in the motor fixing portion machining process described later.
- the shape and size of the semi-molded recesses 17 and 19 have the following relationship.
- the semi-molded recess 17 has a triangular cross section, and the semi-formed recess 19 has a trapezoidal cross section.
- a bottom portion 25 of the semi-molded recess 19 having almost no surface is formed in a flat shape having a width B at the bottom 23 of the semi-molded recess 17.
- the semi-formed recesses 17 and 19 are provided with gentle slopes 27 and 29 and steep slopes 31 and 33 that face each other in the cross-sectional direction.
- the inclination angles of the gentle slopes 27 and 29 are ⁇ and ⁇ , and the inclination angle of the gentle slope 27 is the gentle slope 29.
- the depths H of the semi-molded recesses 17 and 19 are formed to be equal, and the opening width W of the semi-molded recess 17 on the inner peripheral side is relatively smaller than the opening width W of the semi-formed recess 19 on the outer peripheral side. Formed, W ⁇
- the sectional shapes in the width direction of the recesses 13 and 15 are made symmetrical after the processing of the burring 9, and the recesses 13 and 15 are made to have the same size. Therefore, if there is a difference in the sizes of the recesses 13 and 15, the slope angles, opening widths, and depths of the semi-formed recesses 17 and 19 are all the same, and the sizes of the semi-formed recesses 17 and 19 are the same. Can be formed equally. Moreover, it is also possible to employ a configuration in which the semi-formed concave portions 17 and 19 and consequently the concave portions 13 and 15 are provided as a single unit or a plurality of three or more. Semi-molded When there are 3 or more recesses, the inclination angle, opening width, etc. are set in stages to unify the opening width and depth of all recesses after burring.
- the motor fixing portion machining step includes an upper die 35 and a lower die 37, and the upper die 35 has a punch 39. ing.
- the burring 9 is formed by lowering the punch 39 as shown in FIGS. 4 (a) to 4 (b) with respect to the panel 3 held between the upper die 35 and the lower die 37.
- the gap S between the diameter D of the punch 39 and the hole 41 of the lower die 37 is set to be smaller than the plate thickness t of the panel 3, and the difference is, for example, about 0.1 mm. Therefore, the panel 3 is squeezed between the punch 39 and the hole 41, and the plate thickness is reduced at the burring 9 portion.
- the base 1 provided with the recesses 13 and 15 in the burring 9 is kept in a state of cleanliness by surface force plating, but the recesses 13 and 15 are formed in any step before and after the plating process. can do. Even if the recesses 13 and 15 are formed after the plating treatment, the surface of the plating surface can be kept clean because the substrate is not formed because of forming by pressing.
- the adhesive can be engaged with the entire inner peripheral surface 11 of the burring 9 and more firmly fixed.
- the adhesive can be engaged by the two recesses 13 and 15, and the fixing can be performed more firmly. it can.
- the hard 'disk' drive motor Since the hard 'disk' drive motor is fixed to the ring 9, it prevents corrosion and outgassing (gases such as air remaining in the web) that have a fatal effect on the performance of the hard 'disk'. Can be maintained in a good condition.
- a semi-molding recess processing step in which the semi-molded recesses 17 and 19 are press-molded by press molding on the panel 3, and a burring 9 is molded after the semi-molded recesses 17 and 19 are pressure-molded.
- Motor fixing part machining process for forming recesses 13 and 15 around the circumference, The recesses 13 and 15 can be easily formed on the inner periphery by pressure molding.
- the recesses 13 and 15 can be formed to have the same size after processing the burring 9 in consideration of the extension of the panel 3 during burring caulking by pressing.
- the semi-molded recess machining step includes a pair of inclined surfaces 27, 29 and steep slopes 31, 33 facing each other in the cross-section of the semi-molded recesses 17, 19 in an inclination angle 0, ⁇ , an inclination angle 0, ⁇ On the outer peripheral side
- the cross-sectional shape in the width direction of the recesses 13 and 15 can be formed symmetrically after the burring 9 is processed in consideration of the extension of the panel 3 due to the processing of the burring 9 by pressing.
- the depth of the semi-molded recess 17 on the inner peripheral side can be formed relatively larger than the depth of the semi-molded recess on the outer peripheral side.
- a bottom portion having the same width as that of the semi-molded recess 19 on the outer circumference is provided in the inner mold-formed recess 17 and the inclination angles of the gentle slopes 27, 29 and the steep slopes 31, 33 are set.
- the opening width and depth can be varied while keeping the same.
- the recesses 13 and 15 can be processed by pressure molding using fluid pressure after the burring 9 is formed.
- the concave portion is not limited to a groove shape as long as the adhesive can be engaged therewith, and may have various forms such as a mesh shape or a knurled shape.
- the base material is SPCC (for general use) as other SPC materials.
- SPCD for diaphragm
- SUS material can also be used.
- FIG. 1 shows a base for a hard 'disk' drive, (a) is a plan view, (b) is an SA in (a)
- FIG. 2 (a) is a plan view of the panel after the semi-formed recess machining step, (b) is a cross-sectional view taken along the line SB-SB of (a), and (c) is an enlarged cross-sectional view of the main part. Yes (Example 1).
- FIG. 3 (a) is a plan view of the panel after the drilling process before burring, and (b) is the S in (a). C SC arrow sectional view, (c) is an enlarged sectional view of the main part (Example 1).
- FIG. 4 (a) is a cross-sectional view before pressing in the motor fixing part machining step, and (b) is a cross-sectional view after pressing (Example 1).
- FIG. 5 is a plan view of a base for a conventional hard 'disk' drive (conventional example).
- FIG. 6 is a cross-sectional view of a base for a conventional hard 'disk' drive (conventional example).
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
- Motor Or Generator Frames (AREA)
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Extrusion Of Metal (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/884,744 US7974041B2 (en) | 2005-02-23 | 2006-02-23 | Hard disk drive base having a depression formed by pressing without cutting |
EP06714379A EP1852871A4 (en) | 2005-02-23 | 2006-02-23 | HARD DISK DRIVE BASE AND METHOD FOR PRODUCING THE SAME |
CN2006800059085A CN101128881B (zh) | 2005-02-23 | 2006-02-23 | 硬盘驱动器用底座及制造方法 |
US12/880,548 US20100325871A1 (en) | 2005-02-23 | 2010-09-13 | Method of manufacturing hard disk drive base |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005047307A JP4023746B2 (ja) | 2005-02-23 | 2005-02-23 | ハード・ディスク・ドライブ用のベース及び製造方法 |
JP2005-047307 | 2005-02-23 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/880,548 Division US20100325871A1 (en) | 2005-02-23 | 2010-09-13 | Method of manufacturing hard disk drive base |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006090765A1 true WO2006090765A1 (ja) | 2006-08-31 |
Family
ID=36927403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2006/303239 WO2006090765A1 (ja) | 2005-02-23 | 2006-02-23 | ハード・ディスク・ドライブ用のベース及び製造方法 |
Country Status (6)
Country | Link |
---|---|
US (2) | US7974041B2 (ja) |
EP (1) | EP1852871A4 (ja) |
JP (1) | JP4023746B2 (ja) |
KR (1) | KR20070108874A (ja) |
CN (1) | CN101128881B (ja) |
WO (1) | WO2006090765A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5519196B2 (ja) * | 2009-06-24 | 2014-06-11 | サムスン電機ジャパンアドバンスドテクノロジー株式会社 | ディスク駆動装置 |
US9036121B2 (en) | 2010-04-20 | 2015-05-19 | Unified Innovative Technology, Llc | Liquid crystal display panel and liquid crystal display device |
KR101171515B1 (ko) * | 2010-06-28 | 2012-08-06 | 삼성전기주식회사 | 기기 베이스 구조체 및 이를 포함하는 하드 디스크 드라이브 |
KR101477331B1 (ko) | 2011-08-05 | 2014-12-30 | 삼성전기주식회사 | 모터용 베이스 및 이를 포함하는 하드 디스크 드라이브 |
US9148036B2 (en) * | 2012-07-27 | 2015-09-29 | Nidec Corporation | Base member of a motor which includes specific surface structure |
KR101452075B1 (ko) * | 2012-12-27 | 2014-10-16 | 삼성전기주식회사 | 베이스 플레이트, 이의 제조 방법 및 이를 포함하는 디스크 구동장치 |
CN104934851B (zh) * | 2015-06-19 | 2018-08-14 | 郑州大学 | 一种用于半导体激光器叠阵封装的夹具 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH08153386A (ja) | 1994-11-28 | 1996-06-11 | Minebea Co Ltd | ハードディスクドライブ用ベースの製造方法 |
JPH09120669A (ja) | 1995-10-26 | 1997-05-06 | Minebea Co Ltd | ハードディスクドライブ装置及びその製造方法 |
JP2000152550A (ja) * | 1998-11-11 | 2000-05-30 | Sankyo Seiki Mfg Co Ltd | 小型モータ |
US6204996B1 (en) | 1992-10-16 | 2001-03-20 | Seagate Technology Llc | Low profile spindle motor |
JP2003348805A (ja) * | 2002-05-24 | 2003-12-05 | Nsk Ltd | 発電機 |
US20040221444A1 (en) | 2003-04-25 | 2004-11-11 | Nidec Corporation | Method for manufacturing cylindrical members and method for manufacturing motors having the cylindrical member |
Family Cites Families (14)
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US1088437A (en) * | 1913-02-07 | 1914-02-24 | Bridgeport Brass Co | Sheet-metal nut and method of making the same. |
US1449385A (en) * | 1919-05-20 | 1923-03-27 | Ludwig M Dieterich | Art and apparatus for forcing material into a predetermined form |
US2169056A (en) * | 1937-04-26 | 1939-08-08 | Prestole Devices Inc | Method of adapting sheet metal for screws |
US2383133A (en) * | 1942-01-31 | 1945-08-21 | Detroit Harvester Co | Method of forming fastening devices |
US2703418A (en) * | 1951-10-23 | 1955-03-08 | Illinois Tool Works | Method of producing nut and washer assemblies |
US3080839A (en) * | 1961-02-21 | 1963-03-12 | Westinghouse Electric Corp | Machine for forming fins within the tubes of heat exchangers |
US3513684A (en) * | 1966-01-04 | 1970-05-26 | Monarch Rubber Co | Method of making plate metal product with two-way extruded nut |
JPH026033A (ja) * | 1988-06-24 | 1990-01-10 | Aida Eng Ltd | 板材の成形方法 |
NL9000918A (nl) * | 1990-04-18 | 1991-11-18 | Du Pont Nederland | Verbindingselement. |
BR9307256A (pt) | 1992-10-14 | 1999-05-25 | Maxtor Corp | Fator de forma de 10 para uma unidade de disco de 2,5 polegadas |
US5373407A (en) * | 1992-11-12 | 1994-12-13 | Mitsumi Electric Co., Ltd. | Disk drive spindle motor |
JP2000245122A (ja) * | 1999-02-19 | 2000-09-08 | Citizen Watch Co Ltd | ディスクモータを配置するフレームプレートのプレス加工方法 |
JP2003141811A (ja) * | 2001-11-01 | 2003-05-16 | Matsushita Electric Ind Co Ltd | 光ディスク記録再生装置 |
CN2585370Y (zh) * | 2002-11-12 | 2003-11-05 | 方维行 | 光碟机芯的主轴马达固定装置 |
-
2005
- 2005-02-23 JP JP2005047307A patent/JP4023746B2/ja not_active Expired - Fee Related
-
2006
- 2006-02-23 KR KR1020077019008A patent/KR20070108874A/ko not_active Application Discontinuation
- 2006-02-23 EP EP06714379A patent/EP1852871A4/en not_active Withdrawn
- 2006-02-23 CN CN2006800059085A patent/CN101128881B/zh not_active Expired - Fee Related
- 2006-02-23 US US11/884,744 patent/US7974041B2/en not_active Expired - Fee Related
- 2006-02-23 WO PCT/JP2006/303239 patent/WO2006090765A1/ja active Application Filing
-
2010
- 2010-09-13 US US12/880,548 patent/US20100325871A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6204996B1 (en) | 1992-10-16 | 2001-03-20 | Seagate Technology Llc | Low profile spindle motor |
JPH08153386A (ja) | 1994-11-28 | 1996-06-11 | Minebea Co Ltd | ハードディスクドライブ用ベースの製造方法 |
JPH09120669A (ja) | 1995-10-26 | 1997-05-06 | Minebea Co Ltd | ハードディスクドライブ装置及びその製造方法 |
JP2000152550A (ja) * | 1998-11-11 | 2000-05-30 | Sankyo Seiki Mfg Co Ltd | 小型モータ |
JP2003348805A (ja) * | 2002-05-24 | 2003-12-05 | Nsk Ltd | 発電機 |
US20040221444A1 (en) | 2003-04-25 | 2004-11-11 | Nidec Corporation | Method for manufacturing cylindrical members and method for manufacturing motors having the cylindrical member |
Also Published As
Publication number | Publication date |
---|---|
EP1852871A4 (en) | 2009-11-25 |
CN101128881A (zh) | 2008-02-20 |
JP2006236442A (ja) | 2006-09-07 |
CN101128881B (zh) | 2010-05-19 |
JP4023746B2 (ja) | 2007-12-19 |
US7974041B2 (en) | 2011-07-05 |
KR20070108874A (ko) | 2007-11-13 |
US20080168484A1 (en) | 2008-07-10 |
EP1852871A1 (en) | 2007-11-07 |
US20100325871A1 (en) | 2010-12-30 |
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