Constant head self-adapting moving device
Patent Information
- Application Number
- CN202522074460.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-26
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-09-26
AI Technical Summary
针对现有技术中存在的问题，本实用新型提供了一种恒定磁头自适应移动装置，以解决背景技术中提到的现有机械调节结构多为刚性连接，缺乏对微小位移的自适应补偿能力，无法实现动态恒定调节的技术问题
1、包括固定基座，固定基座前端的左侧和右侧均设置有弹性铰链，两组所述弹性铰链前端均设置有T型磁头支架，所述T型磁头支架前端配合设置有磁头模块，所述固定基座前端右侧设置有固定板，所述固定板上连通设置有螺纹孔，所述螺纹孔内螺纹设置有微调螺杆，所述微调螺杆外端设置有手轮，所述微调螺杆与所述T型磁头支架位置对应，所述微调螺杆内端设置有球形头，将磁头模块通过胶粘附在T型磁头支架前端，当需要对磁头模块进行微调时，通过手轮带动微调螺杆转动，微调螺杆则与固定板螺纹连接，微调螺杆则带动球形头运动，球形头则通过与T型磁头支架接触来对磁头模块进行微调，通过两组弹性铰链以及使球形头对T型磁头支架接触可以允许T型磁头支架在X、Y、Z方向进行微米级柔性变形。
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Figure CN224922428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of magnetic recording equipment technology, and more specifically, it relates to a constant magnetic head adaptive movement device. Background Technology
[0002] In traditional magnetic recording devices (such as hard disk drives), the read / write head is driven by a voice coil motor (VCM) to perform a wide-range seek motion. However, due to interferences such as minute vibrations, thermal deformation, and eccentricity when the disk rotates at high speed, the flight altitude between the read / write head and the disk (typically 10-20 nanometers) is difficult to keep constant, which can easily lead to read / write errors, signal distortion, or even head collisions.
[0003] While there are existing technologies that use piezoelectric ceramic (PZT) micro-actuators to achieve two-level servo control, their structures are complex, costly, and have poor reliability. They also require precise control circuits, making it difficult to promote their application in low- and mid-range equipment.
[0004] In addition, most existing mechanical adjustment structures are rigid connections, lacking the ability to adaptively compensate for small displacements, and thus cannot achieve dynamic constant adjustment. Utility Model Content
[0005] (a) Technical problems to be solved To address the problems existing in the prior art, this utility model provides a constant magnetic head adaptive movement device to solve the technical problem mentioned in the background art that existing mechanical adjustment structures are mostly rigid connections, lack the ability to adaptively compensate for small displacements, and cannot achieve dynamic constant adjustment.
[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: A constant magnetic head adaptive movement device includes a fixed base. Elastic hinges are provided on the left and right sides of the front end of the fixed base. A T-shaped magnetic head bracket is provided at the front end of each of the two sets of elastic hinges. A magnetic head module is fitted at the front end of the T-shaped magnetic head bracket. A fixing plate is provided on the right side of the front end of the fixed base. A threaded hole is provided on the fixing plate. A fine-tuning screw is threaded into the threaded hole. A handwheel is provided at the outer end of the fine-tuning screw. The fine-tuning screw corresponds to the position of the T-shaped magnetic head bracket. A spherical head is provided at the inner end of the fine-tuning screw.
[0007] The present invention is further configured such that a support plate is provided on the left side of the front end of the fixed base, and a spring is provided on the right end of the support plate. The right end of the spring is connected to the left side of the T-shaped magnetic head bracket. When the spherical head contacts the T-shaped magnetic head bracket for fine adjustment, the spring supports the T-shaped magnetic head bracket. The spring can be used to provide a reverse elastic force to form a push-pull balance structure.
[0008] The present invention is further configured such that mounting plates are provided at both the left and right ends of the fixed base, and mounting holes are provided at the upper and lower parts of both sets of mounting plates. Bolts are provided on all four sets of mounting holes. When the fixed base needs to be installed, the fixed base is placed in the designated position, and then the four sets of bolts are passed through the four sets of mounting holes on the two sets of mounting plates and connected to the designated position, so as to facilitate the fixing of the fixed base.
[0009] The present invention is further configured such that a guide block is provided at the middle of the front end of the fixed base, a guide T-shaped block is provided at the front end of the guide block, and a guide groove is provided at the rear end of the T-shaped magnetic head bracket. The guide T-shaped block is slidably connected to the guide groove. When the T-shaped magnetic head bracket is finely adjusted, the guide T-shaped block slides in the guide groove of the T-shaped magnetic head bracket, which can guide the T-shaped magnetic head bracket, improve the adjustment accuracy, and prevent the T-shaped magnetic head bracket from deflecting.
[0010] The present invention is further configured such that a sliding hole is provided on the support plate, and a guide rod is slidably disposed in the sliding hole. The right end of the guide rod is connected to the left part of the T-shaped magnetic head bracket, and a limit plate is provided on the left end of the guide rod. The guide rod is located inside the spring. When the spring undergoes elastic deformation, the guide rod slides on the support plate, which can guide the spring and prevent the spring from bending.
[0011] The present invention is further configured such that a mounting slot is provided on the upper side of the front end of the T-shaped magnetic head bracket, and a mounting block is provided on the rear end of the magnetic head module. The mounting block is slidably engaged with the mounting slot. After the mounting block at the rear end of the magnetic head module is slidably engaged with the mounting slot at the front end of the T-shaped magnetic head bracket, glue is poured into the mounting slot to fix the magnetic head module. The magnetic head module can be positioned first and then glued, which improves its installation accuracy.
[0012] The present invention is further provided with multiple sets of protrusions at the outer end of the handwheel. By providing protrusions, the friction of the handwheel can be increased, making it easier to rotate the handwheel.
[0013] Beneficial effects Compared with the prior art, the present invention provides a constant magnetic head adaptive movement device, which has the following beneficial effects: 1. The device includes a fixed base, with elastic hinges on the left and right sides of the front end of the fixed base. A T-shaped magnetic head bracket is mounted on the front end of each of the two sets of elastic hinges. A magnetic head module is fitted onto the front end of the T-shaped magnetic head bracket. A fixing plate is mounted on the right side of the front end of the fixed base, and a threaded hole is connected to the fixing plate. A fine-tuning screw is threaded into the threaded hole, and a handwheel is mounted on the outer end of the fine-tuning screw. The fine-tuning screw corresponds to the position of the T-shaped magnetic head bracket, and a ball head is mounted on the inner end of the fine-tuning screw. The magnetic head module is glued to the front end of the T-shaped magnetic head bracket. When fine-tuning of the magnetic head module is required, the handwheel drives the fine-tuning screw to rotate, which then connects to the threaded fixing plate. The fine-tuning screw drives the ball head to move, and the ball head contacts the T-shaped magnetic head bracket to fine-tune the magnetic head module. The two sets of elastic hinges and the contact between the ball head and the T-shaped magnetic head bracket allow the T-shaped magnetic head bracket to undergo micron-level flexible deformation in the X, Y, and Z directions.
[0014] 2. A support plate is provided on the left side of the front end of the fixed base, and a spring is provided on the right end of the support plate. The right end of the spring is connected to the left side of the T-shaped magnetic head bracket. When the spherical head contacts the T-shaped magnetic head bracket for fine adjustment, the spring supports the T-shaped magnetic head bracket. The spring can be used to provide a reverse elastic force to form a push-pull balance structure.
[0015] 3. The fixed base is provided with mounting plates at both the left and right ends. The upper and lower parts of the two sets of mounting plates are connected with mounting holes. Bolts are provided on the four sets of mounting holes. When the fixed base needs to be installed, the fixed base is placed in the designated position, and then the four sets of bolts are passed through the four sets of mounting holes on the two sets of mounting plates and connected to the designated position to facilitate the fixing of the fixed base. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a constant magnetic head adaptive movement device according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of a constant magnetic head adaptive movement device according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the connection structure between the fixed base, guide block, and guide T-block in this utility model; Figure 4 This is a schematic diagram of the connection structure between the T-shaped magnetic head bracket, the mounting slot, and the mounting block in this utility model; Figure 5 This is a schematic diagram of the connection structure between the fixed base, the mounting plate, and the mounting holes in this utility model.
[0017] In the diagram: 1. Fixed base; 2. Elastic hinge; 3. T-shaped head bracket; 4. Head module; 5. Fixing plate; 6. Fine-tuning screw; 7. Handwheel; 8. Support plate; 9. Spring; 10. Mounting plate; 11. Mounting hole; 12. Bolt; 13. Guide block; 14. Guide T-block; 15. Spherical head; 16. Guide rod; 17. Limiting plate; 18. Mounting slot; 19. Mounting block; 20. Protrusion. Detailed Implementation It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.
[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0020] Please see Figure 1-5 A constant magnetic head adaptive movement device includes a fixed base 1. Elastic hinges 2 are provided on the left and right sides of the front end of the fixed base 1. A T-shaped magnetic head bracket 3 is provided at the front end of each of the two sets of elastic hinges 2. A magnetic head module 4 is fitted to the front end of the T-shaped magnetic head bracket 3. A fixed plate 5 is provided on the right side of the front end of the fixed base 1. A threaded hole is provided on the fixed plate 5. A fine-tuning screw 6 is threaded into the threaded hole. A handwheel 7 is provided at the outer end of the fine-tuning screw 6. The fine-tuning screw 6 corresponds to the position of the T-shaped magnetic head bracket 3. A spherical head 15 is provided at the inner end of the fine-tuning screw 6. In this embodiment, the magnetic head module 4 is glued to the front end of the T-shaped magnetic head bracket 3. When fine-tuning of the magnetic head module 4 is required, the handwheel 7 drives the fine-tuning screw 6 to rotate. The fine-tuning screw 6 is threadedly connected to the fixing plate 5. The fine-tuning screw 6 drives the ball head 15 to move. The ball head 15 then makes fine-tuning of the magnetic head module 4 by contacting the T-shaped magnetic head bracket 3. The two sets of elastic hinges 2 and the contact between the ball head 15 and the T-shaped magnetic head bracket 3 allow the T-shaped magnetic head bracket 3 to undergo micron-level flexible deformation in the X, Y, and Z directions.
[0021] Please see Figure 1 and Figure 2As one embodiment of the T-type magnetic head bracket 3, the fixed base 1 in this utility model is provided with a support plate 8 on the left side of its front end, and a spring 9 is provided on the right end of the support plate 8. The right end of the spring 9 is connected to the left side of the T-type magnetic head bracket 3. A sliding hole is provided on the support plate 8, and a guide rod 16 is slidably provided in the sliding hole. The right end of the guide rod 16 is connected to the left side of the T-type magnetic head bracket 3. A limit plate 17 is provided on the left end of the guide rod 16, and the guide rod 16 is located inside the spring 9. Specifically, when the spherical head 15 contacts the T-shaped magnetic head support 3 for fine-tuning, the spring 9 supports the T-shaped magnetic head support 3. The spring 9 can provide a reverse elastic force to form a push-pull balance structure. When the spring 9 undergoes elastic deformation, the guide rod 16 slides on the support plate 8 to guide the spring 9 and prevent it from bending.
[0022] Please see Figures 1-3 and Figure 5 As one embodiment of the fixed base 1, the fixed base 1 in this utility model is provided with mounting plates 10 at both the left and right ends, and the upper and lower parts of the two sets of mounting plates 10 are connected with mounting holes 11, and bolts 12 are provided on the four sets of mounting holes 11. Specifically, when it is necessary to install the fixed base 1, the fixed base 1 is placed in the designated position, and then four sets of bolts 12 are passed through the four sets of mounting holes 11 on the two sets of mounting plates 10 and connected to the designated position to facilitate the fixing of the fixed base 1.
[0023] Please refer to Figure 2 and Figure 3 As a further embodiment of the T-shaped magnetic head bracket 3: a guide block 13 is provided at the middle of the front end of the fixed base 1, a guide T-shaped block 14 is provided at the front end of the guide block 13, a guide groove is provided at the rear end of the T-shaped magnetic head bracket 3, and the guide T-shaped block 14 is slidably connected to the guide groove; Specifically, when the T-type magnetic head support 3 is fine-tuned, the guide T-block 14 slides in the guide groove of the T-type magnetic head support 3, which can guide the T-type magnetic head support 3, improve the adjustment accuracy, and prevent the T-type magnetic head support 3 from deflecting.
[0024] This invention provides a mounting slot 18 on the upper front side of the T-shaped magnetic head bracket 3 and a mounting block 19 on the rear end of the magnetic head module 4. The mounting block 19 is slidably engaged with the mounting slot 18. After the mounting block 19 at the rear end of the magnetic head module 4 is slidably engaged with the mounting slot 18 at the front end of the T-shaped magnetic head bracket 3, glue is poured into the mounting slot 18 to fix the magnetic head module 4. The magnetic head module 4 can be positioned first and then glued, which improves its installation accuracy.
[0025] This invention provides multiple sets of protrusions 20 at the outer end of the handwheel 7. By providing the protrusions 20, the friction of the handwheel 7 can be increased, making it easier to rotate the handwheel 7.
[0026] In summary, when using the overall equipment: After the mounting block 19 at the rear end of the magnetic head module 4 is slidably engaged with the mounting slot 18 at the front end of the T-shaped magnetic head bracket 3, glue is poured into the mounting slot 18 to fix the magnetic head module 4. When fine adjustment of the magnetic head module 4 is required, the fine adjustment screw 6 is rotated by the handwheel 7. The fine adjustment screw 6 is threadedly connected to the fixing plate 5. The fine adjustment screw 6 drives the ball head 15 to move. The ball head 15 then makes fine adjustment of the magnetic head module 4 by contacting the T-shaped magnetic head bracket 3.
[0027] When the spherical head 15 contacts the T-shaped head support 3 for fine-tuning, the spring 9 supports the T-shaped head support 3.
[0028] When it is necessary to install the fixed base 1, place the fixed base 1 in the designated position, and then connect the four sets of bolts 12 through the four sets of mounting holes 11 on the two sets of mounting plates 10 to the designated position.
[0029] When the T-type head support 3 is finely adjusted, the guide T-block 14 slides in the guide groove of the T-type head support 3, which serves to guide the T-type head support 3.
[0030] When the T-type head support 3 is finely adjusted, the guide T-block 14 slides in the guide groove of the T-type head support 3, which can guide the T-type head support 3.
[0031] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents. In all the solutions mentioned above, the operation of electrical components is controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies. Therefore, their electrical connection relationships and specific circuit structures will not be elaborated here.
Claims
1. A constant magnetic head adaptive movement device, comprising a fixed base (1), characterized in that: Elastic hinges (2) are provided on the left and right sides of the front end of the fixed base (1). T-shaped magnetic head brackets (3) are provided at the front ends of the two sets of elastic hinges (2). Magnetic head modules (4) are provided at the front ends of the T-shaped magnetic head brackets (3). A fixed plate (5) is provided on the right side of the front end of the fixed base (1). A threaded hole is provided on the fixed plate (5). A fine-tuning screw (6) is provided in the threaded hole. A handwheel (7) is provided at the outer end of the fine-tuning screw (6). The fine-tuning screw (6) is positioned corresponding to the T-shaped magnetic head bracket (3). A spherical head (15) is provided at the inner end of the fine-tuning screw (6).
2. The constant magnetic head adaptive movement device according to claim 1, characterized in that: A support plate (8) is provided on the left side of the front end of the fixed base (1), and a spring (9) is provided on the right end of the support plate (8). The right end of the spring (9) is connected to the left side of the T-shaped magnetic head bracket (3).
3. The constant magnetic head adaptive movement device according to claim 1, characterized in that: The fixed base (1) is provided with mounting plates (10) at both the left and right ends. The upper and lower parts of the two sets of mounting plates (10) are connected and provided with mounting holes (11). Bolts (12) are provided on the four sets of mounting holes (11).
4. The constant magnetic head adaptive movement device according to claim 2, characterized in that: The fixed base (1) has a guide block (13) at the front center, a guide T-shaped block (14) at the front end of the guide block (13), a guide groove at the rear end of the T-shaped magnetic head bracket (3), and the guide T-shaped block (14) is slidably connected to the guide groove.
5. A constant magnetic head adaptive movement device according to claim 2, characterized in that: The support plate (8) is provided with a sliding hole, and a guide rod (16) is slidably disposed in the sliding hole. The right end of the guide rod (16) is connected to the left side of the T-shaped magnetic head bracket (3). A limit plate (17) is provided at the left end of the guide rod (16), and the guide rod (16) is located inside the spring (9).
6. The constant magnetic head adaptive movement device according to claim 1, characterized in that: The T-shaped magnetic head bracket (3) has an installation slot (18) on its upper front side, and the magnetic head module (4) has an installation block (19) on its rear end. The installation block (19) slides and engages with the installation slot (18).
7. A constant magnetic head adaptive movement device according to claim 1, characterized in that: The handwheel (7) has multiple sets of protrusions (20) on its outer end.