CN100458960C - Adjusting mechanism for optical reading head of optical disk drive and manufacturing method thereof - Google Patents
Adjusting mechanism for optical reading head of optical disk drive and manufacturing method thereof Download PDFInfo
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- CN100458960C CN100458960C CNB2004100563845A CN200410056384A CN100458960C CN 100458960 C CN100458960 C CN 100458960C CN B2004100563845 A CNB2004100563845 A CN B2004100563845A CN 200410056384 A CN200410056384 A CN 200410056384A CN 100458960 C CN100458960 C CN 100458960C
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- pedestal
- read head
- anchor clamps
- guide rod
- optical read
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Abstract
The invention relates to a disk driver optics reading head adjusting mechanism which comprises a base seat, a clamp and a guiding rod. The clamp shaft is connected with the base seat and possesses a groove spiral winded on the surface of the clamp. The guiding rod is positioned on the base seat; a first end of the guiding rod is embedded inside the groove; the optics reading head is positioned on the guiding rod. When the clamp rotates, the groove and the guiding rod generate the relatively movement so as to lead the first end to move up-and-down to adjust the dip angle of the guiding rod.
Description
Technical field
The invention relates to a kind of disk driver optics reading head adjusting mechanism and preparation method thereof, especially a kind of angle of inclination by adjusting guide rod is so that optical read head focuses on adjusting mechanism of CD-RW discsCD-RW and preparation method thereof.
Background technology
Along with the PC fast development, also grow up fast in the market of the peripheral product of computer, such as the peripheral product of computers such as hard disk drive, CD drive, scanner, printer, all become the instrument of modern offices indispensability.And in the peripheral product of these computers, CD drive is the storing media that generally uses at present.CD drive more provides the benefit of diversified storage data form and data long preservation except great storage volume can be provided.Particularly (Digital Versatile Disc, development DVD) provide up to the storage volume of 17GB and more high-quality image and audio output, and make that the application of CD drive is more extensive along with digital video disk of new generation.
Please refer to shown in Figure 1ly, a typical light disk drive framework comprises a Spindle Motor 100, an optical read head 200 and a gear train 300.Wherein, Spindle Motor 100 is in order to driving discs (not shown) rotation, and gear train 300 be in order to drive optical read head 200 to the appropriate location so that make optical read head 200 can accurately seek rail (tracking) and focus on the data that read discs after (focusing).
Therefore, significantly, guide rod 320 can influence the angle of the laser light optical axis of optical read/write head 200 with respect to discs with lead screw.Basically, the laser light optical axis direction of optical read head 200 must be perpendicular to the surface of discs, accurately to read the data of each track on the discs.And the slight error of this optical axis direction will influence the speed and the correctness of data read.Therefore, usually design has the optical read head adjusting mechanism in CD drive, adjusts the optical axis angle of optical read head 200 with precision, so as to remedying the accessory size or the error of assembling process, and guarantees the product yield.
Please refer to shown in Fig. 2 A and Fig. 2 B, is the synoptic diagram of a typical optical read head adjusting mechanism.This optical read head adjusting mechanism comprises a pedestal 410, anchor clamps (holder) 420, a shell fragment 430, one first locking screw 440, one second locking screw 450 and an adjustment screw 460.Wherein, anchor clamps 420 are locked on the pedestal 410 by first locking screw 440, and an end 320a of guide rod 320 is positioned this anchor clamps 420.Shell fragment 430 is locked on the pedestal 410 by second locking screw 450, and its free end is pressed on the guide rod 320, with location guide 320 and prevent that guide rod 320 from moving up.Adjust screw 460 and be screwed together on the pedestal 410, and be positioned at guide rod 420 under.Adjust screw 460 to change the length of its outstanding pedestal 410 by rotation, can apply an acting force that makes progress, reach the purpose of adjusting guide rod 320 angles of inclination guide rod 320.
As shown in FIG., this optical read head adjusting mechanism has used six parts such as pedestal 410, anchor clamps 420, shell fragment 430, first locking screw 440, second locking screw 450 and adjustment screw 460, to reach the purpose of adjusting guide rod 320 angles of inclination.And in the process of assembled optical discs driver, also must carry out corresponding number of assembling steps.Therefore, improve, influence production reliability, also must expend appreciable human cost and assembly cost except causing mechanism complexity.
Therefore, design how to simplify the optical read head adjusting mechanism simultaneously, reaches the purpose that reduces cost of manufacture and human cost to improve the degree of stability of CD drive, is to be that disc drive mechanism designs a considerable problem.
Summary of the invention
It is to reduce the number of spare parts that assembling process uses that fundamental purpose of the present invention provides a kind of, and reduces optical read head adjusting mechanism of assembling with the cost of making and preparation method thereof.
Optical read head adjusting mechanism of the present invention comprises a pedestal and anchor clamps.Wherein, pedestal uses metal material and has a through hole, anchor clamps are with the integrated element of injection molding method and are coupling to pedestal, and the surface of anchor clamps has a groove around on it, and, this groove presents the height fluctuations corresponding to the upper surface of pedestal, and anchor clamps also have an opening, are upwards connected to this anchor clamps end face by this groove.Optical read head is located on the guide rod, and this guide rod has one first end, and Open Side Down inserts in this groove and sleeve in the groove via this for this first end.When the anchor clamps rotation, groove produces relative motion and guides this first end to move along the direction of vertical pedestal with guide rod, to adjust the angle of inclination of guide rod.
The method for making of optical read head adjusting mechanism of the present invention is at first to make at least one through hole on pedestal.Then, make anchor clamps in the mode of ejection formation and pass through hole to be coupling to pedestal.The surface of these anchor clamps has a groove around on it, and this groove presents the height fluctuations corresponding to the upper surface of pedestal.Next, one first end of guide rod is inserted in the groove.Then, the assembling optical read head is on guide rod.Next, check the optical axis direction of this optical read head, depart from if having, then rolling clamp makes groove and guide rod produce relative motion, guides first end to move along the direction of vertical pedestal, to adjust the angle of inclination of guide rod.
Can be further understood by following detailed Description Of The Invention and institute's accompanying drawing about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 is the synoptic diagram of a typical light disk drive framework.
Fig. 2 is the synoptic diagram of a typical optical read head adjusting mechanism.
Fig. 3 A is the synoptic diagram of CD drive one preferred embodiment of the present invention.
Fig. 3 B is the diagrammatic cross-section of anchor clamps among Fig. 3 A.
Fig. 4 A to Fig. 4 C is the synoptic diagram of method for making one preferred embodiment of optical read head adjusting mechanism of the present invention.
Fig. 4 D is that the present invention is by the synoptic diagram of rolling clamp with adjustment guide rod angle of inclination.
Embodiment
Please refer to shown in Fig. 3 A, is the synoptic diagram of CD drive one preferred embodiment of the present invention.As shown in FIG., this CD drive has a Spindle Motor 100, an optical read head 200, a gear train 300 and an optical read head adjusting mechanism.Wherein, Spindle Motor 100 is in order to drive discs (not shown) rotation.Gear train 300 has a guide rod 320, a CD-ROM drive motor (not shown) and a lead screw 340.Guide rod 320 is parallel to each other with lead screw 340, and is stretched out by the position of Spindle Motor 100.The relative both sides of optical read head 200 are supported by guide rod 320 and lead screw 340 respectively.Drive the lead screw rotation by CD-ROM drive motor, can drive optical read head 200, make optical read head 200 after accurately seeking rail (tracking) and focusing on (focusing), read the data of discs to the appropriate location.
The optical read head adjusting mechanism is that the optical axis direction of adjusting optical read head 200 makes perpendicular to the discs surface in order in the process of assembling, just makes the optical axis direction of optical read head 200 be parallel to the rotating shaft direction of Spindle Motor 100.And as shown in Figure 3A, this optical read head adjusting mechanism comprises a pedestal 510, anchor clamps 520 and a location device 530.Wherein, anchor clamps 520 are to be coupling to pedestal 510, and the surface of anchor clamps 520 has a groove 522.Please refer to simultaneously shown in Fig. 3 B, one first end 320a of guide rod 320 sleeves in this groove 522, and its second end 320b is assembled in the bearing 360 to be installed on the pedestal 510.In addition, locating device 530 is installed in adjacent gripper 520 places, and, comprise two mutually parallel cylinders 532 respectively closings to the relative dual-side of guide rod 320, with restriction guide rod 320 levels (about) amount of movement of direction.
See also Fig. 3 B, anchor clamps 520 are a columned profile, and are made in the distance of groove 522 with the pedestal 510 upper surface 510a on anchor clamps 520 surfaces, are to be the variation that has height to rise and fall.Therefore, the first end 320a of guide rod 320 is slided along groove 522, can make the first end 320a of guide rod produce moving of vertical pedestal 510 directions, and be adjusted the angle of inclination of guide rod 320, reach the purpose of adjusting optical read head 200 optical axis directions.Basically, the projecting figure of aforementioned groove 522 on pedestal 510 is to present similar concentrically ringed pattern, can slide on smoothly in the groove 522 with the first end 320a that guarantees guide rod 320, and unlikelyly be obstructed or break away from.And with regard to a preferred embodiment, this groove 522 can be adopted spiral fashion and be surrounded on anchor clamps 520 surfaces.
Secondly, for the carrying out of facility assembling, the surface of anchor clamps 520 has an opening 526 in addition, upwards connects end face 520a to anchor clamps by groove 522.The first end 320a of guide rod inserts downwards in the groove 522 through opening 526 thus.In addition, for convenient turn anchor clamps 520 to adjust optical read head 200 optical axis directions, the end face 520a of anchor clamps has a rill 524 in addition in order to turn.
Shown in Fig. 3 B, be the diagrammatic cross-section of anchor clamps 520 among Fig. 3 A.As shown in FIG., anchor clamps 520 can be divided into a top A, a rotating shaft part B and portion C once.Wherein, top A is positioned at the top of pedestal 510, just is manufactured with the part of groove 522.Rotating shaft part B is matched with a through hole 512 that is made on the pedestal 510.Lower part C is the below that is positioned at pedestal 510.And the width of the widest part of top A and lower part C moves up and down to prevent anchor clamps 520 greater than the diameter of through hole 512.
Basically, because optical read head 200 is to be located on this guide rod 320, therefore, the angle change of guide rod 320 will influence the optical axis direction of optical read head 200.If error appears in the optical axis direction of optical read head 200 conversely speaking,, can proofread and correct by the angle of inclination that changes guide rod 320.Simultaneously, because the Spindle Motor 100 of CD drive also is to be installed on this pedestal 500, therefore, this pedestal 500 can be useed the reference platform of optical read head adjusting mechanism of the present invention as, and, can reach the purpose of revising optical read head 200 optical axis directions by adjusting the angle of inclination of guide rod 320 with respect to pedestal 500.
Please refer to shown in Fig. 4 A to Fig. 4 C figure, is method for making one preferred embodiment of optical read head adjusting mechanism 500 of the present invention.At first, shown in Fig. 4 A, make a through hole 512 and a groove 514 on a pedestal 510.Then, shown in Fig. 4 B,, make anchor clamps 520 to be coupling, simultaneously, above groove 514, make locating device 530 and be embedded in the groove to pedestal 510 at these through hole 512 places in the mode of ejection formation (injection molding).Basically, ejection formation is that macromolecule melten gel (being formed by thermoplastic resin heating) is flow in the given mould, can finish finished product behind cooling and shaping.And for the present invention, pedestal 510 is to use metal material, to avoid in the process of ejection formation pedestal 510 generation distortion.Simultaneously, can prevent that also anchor clamps 520 from attaching on the pedestal 510, can rotate with respect to pedestal 510 to guarantee anchor clamps 520.Next, shown in Fig. 4 C, the first end 320a of guide rod 320 is inserted downwards in the groove 522 via opening 526, and assembling optical read head 200 is on guide rod 320, to finish the making of optical read head adjusting mechanism of the present invention.
Generally speaking, before the CD drive shipment, must the optical axis direction of optical read head 200 be detected.If having, departs from the optical axis direction of optical read head 200, shown in Fig. 4 D, can be by the high and low position of rolling clamp 520 with the first end 320a of change guide rod, the angle of inclination of adjusting guide rod 320 is (in figure, guide rod promptly is to move to 320 ' by 320), with the optical axis direction of calibrating optical read head 200.
Compared to traditional optical read head adjusting mechanism, optical read head adjusting mechanism of the present invention has following advantage:
One, optical read head adjusting mechanism of the present invention only utilizes and uses anchor clamps 520 and locating device 530, can reach the purpose of adjusting guide rod 320 angles of inclination.Otherwise traditional optical read head adjusting mechanism but need use parts such as anchor clamps 420, shell fragment 430, first locking screw 440, second locking screw 450 and adjustment screw 460.Therefore, no matter optical read head adjusting mechanism of the present invention all has tangible improvement with regard to cost of parts or assembly cost.
Two, in general, employed materials and parts quantity is few more, and the stability of device is also high more.Under this principle, optical read head adjusting mechanism of the present invention is when obtaining higher structural stability, to improve the product degree of stability of CD drive.
The above is to utilize preferred embodiment to describe the present invention in detail, and be not to limit the scope of the invention, and the personage who knows present technique all can understand, suitably makes the change and the adjustment of equivalence, will not lose essence of the present invention place, also not break away from the spirit and scope of the present invention.
Claims (8)
1. an optical read head adjusting mechanism is installed on the interior optical axis direction with the adjustment optical read head of CD drive, and this optical read head adjusting mechanism comprises:
One pedestal, this pedestal uses metal material and has a through hole;
One anchor clamps, these anchor clamps are with the integrated element of injection molding method, this clamp shaft is connected to this pedestal, the surface of these anchor clamps has a groove around on it, and this groove presents the height fluctuations corresponding to the upper surface of this pedestal, these anchor clamps also have an opening, are upwards connected to this anchor clamps end face by this groove; And
This optical read head is located on the guide rod, and, this guide rod has one first end, Open Side Down inserts in this groove and sleeve in this groove via this for this first end, when these anchor clamps rotate, this groove produces relative motion and guides this first end to move along the direction of vertical this pedestal with this guide rod, to adjust the angle of inclination of this guide rod.
2. optical read head adjusting mechanism as claimed in claim 1 is characterized in that these anchor clamps are to make with thermoplastic resin.
3. optical read head adjusting mechanism as claimed in claim 1 is characterized in that this groove is to adopt spiral fashion to be surrounded on this chucking surface.
4. optical read head adjusting mechanism as claimed in claim 1, it is characterized in that also comprising a location device, be positioned on this pedestal that this locating device has two mutual parallel cylinders, closing is in the relative dual-side of this guide rod, with the amount of movement of restriction guide rod horizontal direction.
5. optical read head adjusting mechanism as claimed in claim 1, it is characterized in that these anchor clamps can divide into a top, a rotating shaft part and a lower part, this top is positioned at the top of this pedestal, this shaft branch is matched with in this through hole, this lower part is positioned at the below of this pedestal, and the width of the widest part of this top and this lower part moves up and down to prevent these anchor clamps greater than the diameter of this through hole.
6. the method for making of an optical read head adjusting mechanism, this optical read head adjusting mechanism are to be installed in the CD drive to adjust the optical axis direction of optical read head, and this method for making comprises:
One pedestal is provided;
Make at least one through hole on this pedestal;
In the mode of ejection formation, make a clamp shaft at this through hole place and be connected to this pedestal, the surface of these anchor clamps has a groove around on it, and this groove presents the height fluctuations corresponding to the upper surface of this pedestal;
One first end of this guide rod is inserted in this groove;
Assemble this optical read head on this guide rod; And
Rotate this anchor clamps, make this groove produce relative motion and guide this first end to move, to adjust the angle of inclination of this guide rod along the direction of vertical this pedestal with this guide rod.
7. method for making as claimed in claim 6 is characterized in that in the step of making these anchor clamps, makes a location simultaneously and is installed on this pedestal, with the amount of movement of restriction guide rod horizontal direction.
8. method for making as claimed in claim 6 it is characterized in that this pedestal is to make with metal material, and these anchor clamps is to make with thermoplastic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100563845A CN100458960C (en) | 2004-08-05 | 2004-08-05 | Adjusting mechanism for optical reading head of optical disk drive and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100563845A CN100458960C (en) | 2004-08-05 | 2004-08-05 | Adjusting mechanism for optical reading head of optical disk drive and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1731518A CN1731518A (en) | 2006-02-08 |
| CN100458960C true CN100458960C (en) | 2009-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100563845A Expired - Fee Related CN100458960C (en) | 2004-08-05 | 2004-08-05 | Adjusting mechanism for optical reading head of optical disk drive and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100458960C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200541A (en) * | 1997-05-28 | 1998-12-02 | 三星电子株式会社 | Optical pick-up feeding device |
| CN1276600A (en) * | 1999-05-03 | 2000-12-13 | 三星电子株式会社 | Automatic slope compensating device and optical record reproducer with said device |
| CN1423258A (en) * | 2001-12-07 | 2003-06-11 | 三星电机株式会社 | Apparatus for controlling optical pick-up device and optical read-write apparatus using said apparatus |
-
2004
- 2004-08-05 CN CNB2004100563845A patent/CN100458960C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200541A (en) * | 1997-05-28 | 1998-12-02 | 三星电子株式会社 | Optical pick-up feeding device |
| CN1276600A (en) * | 1999-05-03 | 2000-12-13 | 三星电子株式会社 | Automatic slope compensating device and optical record reproducer with said device |
| CN1423258A (en) * | 2001-12-07 | 2003-06-11 | 三星电机株式会社 | Apparatus for controlling optical pick-up device and optical read-write apparatus using said apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1731518A (en) | 2006-02-08 |
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Owner name: HESHUO JOINT SCIENCE AND TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HUASHUO COMPUTER CO LTD Effective date: 20100322 |
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Free format text: CORRECT: ADDRESS; FROM: 000000 4F, NO.150, LIDE ROAD, BEITOU DISTRICT, TAIPEI CITY, TAIWAN PROVINCETO: 5/F, NO.76, LIGONG STREET, BEITOU DISTRICT, TAIPEI CITY, TAIWAN PROVINCE, CHINA |
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Effective date of registration: 20100322 Address after: Taiwan province Taipei City Beitou District China meritorious Street No. 76 5 floor Patentee after: Pegatron Corporation Address before: 000000 Taiwan province Beitou District Taipei City Road No. 150 4 floor Patentee before: Huashuo Computer Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090204 Termination date: 20130805 |