A hard disk head arm assembly apparatus

Abstract

The utility model relates to hard disk assembly technology especially relates to a hard disk magnetic head arm assembly equipment, including conveying subassembly of transportation hard disk shell, the adjusting assembly of installation magnetic head arm and assembly component. Assembly component includes the connecting frame, the lower portion of connecting frame is installed with horizontal drive motor, and one end of horizontal drive motor is provided with the top block. One side of horizontal drive motor still is provided with the extension frame, and the lower portion of extension frame is provided with the accommodation cavity, and the inside of accommodation cavity is provided with extrusion assembly. Extrusion assembly passes through first push axle high -speed access magnetic head arm, and then through lever force amplification structure will shift into reverse pressurization, produces controllable micron level down pressure, and evades inertial impact.

Description

Technical Field

[0001] This utility model relates to hard disk assembly technology, and more particularly to a hard disk head arm assembly device. Background Technology

[0002] The assembly of the hard drive head arm is a core step in hard drive manufacturing, and its precision directly affects the flight height of the head on the high-speed rotating disk and the stability of reading and writing.

[0003] Existing technology includes an apparatus for assembling a magnetic head arm assembly, as proposed in Chinese patent application CN1234111C. In this patent, a base plate and a load beam are constructed in a series, comprising stacked layers of parts for the magnetic head arm assembly. The load beam series is stacked on the base plate series and transported in a stacked series by a conveyor system to undergo the necessary assembly process.

[0004] The existing assembly process still has the following drawbacks: The magnetic head arm needs to be precisely aligned with each disk in a multi-disc stacked structure, with a spacing of only millimeters. Manual or direct cylinder pressure can easily cause displacement due to inertial impact, leading to the magnetic head colliding with the disk or losing control of the flight altitude. When using multi-head arms for synchronous pressing, traditional single-point force application systems cannot guarantee uniform pressure from each head, resulting in differences in assembly stress. The press-fitting process requires positioning and pressure application in steps, which is time-consuming and makes it difficult to balance speed and accuracy.

[0005] Based on the above, there is a need for further improvement of the existing technology. Utility Model Content

[0006] In summary, this utility model proposes a hard disk head arm assembly device, which addresses how to achieve micron-level precision pressing of the head arm to avoid head offset or disk collision caused by inertial impact; and how to ensure uniform force distribution during synchronous pressing of multiple head arms.

[0007] The technical solution of this utility model is implemented as follows: A hard disk drive head arm assembly device includes a conveying assembly for transporting the hard disk drive casing, an adjustment assembly for mounting the head arm, and an assembly assembly. Its features are, The assembly component includes a connecting frame, a horizontal drive motor is mounted below the connecting frame, and a top block is provided at one end of the horizontal drive motor. An extension frame is also provided on one side of the horizontal drive motor, and a receiving cavity is provided below the extension frame. An extrusion assembly is provided inside the receiving cavity.

[0008] Preferably, the extrusion assembly includes a guide shaft, on which a first push shaft and a second push shaft are slidably connected. The first push shaft is connected to the second push shaft via a first connecting rod assembly, and a third push shaft is disposed between the first push shaft and the second push shaft. The third push shaft is connected to the first push shaft via a second connecting rod assembly.

[0009] Preferably, a sleeve is provided at one end of the third push shaft, which is away from the second push shaft, and a pressure head is fixedly connected to one end of the sleeve. The first push shaft is connected to an external drive cylinder, which controls its movement on the guide shaft.

[0010] Preferably, the conveying assembly includes a support plate, and one or more conveying tracks are disposed above the support plate. The conveying track includes a pair of sidewall frames, on which a number of conveying wheels are mounted.

[0011] Preferably, infrared sensors that limit the travel distance of the hard drive casing are also provided on both sides of the side wall frame.

[0012] Preferably, the adjustment assembly includes a crossbeam frame, and one or more adjustment units are disposed above the crossbeam frame. The adjustment unit is obliquely installed above the crossbeam frame and can move horizontally along the crossbeam frame. Horizontal shaft drive motors are provided on both sides of the crossbeam frame, and the adjustment unit moves on the crossbeam frame by the horizontal shaft drive motors.

[0013] Preferably, the adjustment unit includes a vertical drive motor, which is linked to the assembly assembly and controls the assembly assembly to move along the axial direction of the vertical drive motor.

[0014] The hard disk head arm assembly equipment of this utility model has the following beneficial effects: The extrusion assembly approaches the magnetic head arm at high speed via the first push shaft, and then the displacement is converted into reverse pressure by the lever amplification structure (first / second linkage group 314 / 316, third push shaft 315), generating controllable micron-level downward pressure to avoid inertial impact.

[0015] Based on the guide shaft, a parallel transmission chain is formed by multiple push shafts and connecting rods to ensure that the pressure distribution of all pressure heads is uniform and to meet the synchronization requirements of multi-disc stack assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the hard disk head arm assembly equipment of this utility model; Figure 2 This is a partial structural schematic diagram of the hard disk head arm assembly equipment of this utility model; Figure 3 This is a partial structural schematic diagram of the hard disk head arm assembly equipment of this utility model; Figure 4 This is a partial structural schematic diagram of the hard disk head arm assembly equipment of this utility model.

[0017] The reference numerals in the attached drawings are as follows: hard disk head arm assembly equipment 100, conveying assembly 10, bearing plate 101, conveying track 102, side wall frame 103, conveying wheel 104, infrared sensor 105, adjusting assembly 20, crossbeam frame 201, adjusting unit 202, horizontal axis drive motor 203, vertical drive motor 204, assembly assembly 30, connecting frame 301, horizontal drive motor 302, top block 303, extension frame 304, accommodating cavity 305, extrusion assembly 31, guide shaft 311, first push shaft 312, second push shaft 313, first connecting rod group 314, third push shaft 315, second connecting rod group 316, sleeve shaft 317, and pressure head 318. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Reference Figures 1 to 2 As shown, the present invention proposes a hard disk head arm assembly device 100, which includes a conveying assembly 10 for transporting the hard disk casing and an adjusting assembly 20 for mounting the head arm.

[0020] The conveying assembly 10 includes a support plate 101, above which one or more conveying tracks 102 are disposed. Each conveying track 102 includes a pair of sidewall frames 103, on which a plurality of conveying wheels 104 are mounted. The conveying wheels 104 are rotated by an external motor controller to convey the hard disk casing forward or backward.

[0021] Infrared sensors 105 are also provided on both sides of the side wall frame 103 to limit the travel distance of the hard drive casing. When the hard drive casing is transported between the two infrared sensors 105, the infrared sensors 105 send a signal to the external motor to stop the hard drive casing from continuing to be transported.

[0022] The adjustment assembly 20 includes a crossbeam frame 201, above which one or more adjustment units 202 are disposed. The adjustment units 202 are obliquely mounted above the crossbeam frame 201 and are capable of horizontal movement along the crossbeam frame 201. Horizontal shaft drive motors 203 are disposed on both sides of the crossbeam frame 201, and these motors control the movement of the adjustment units 202 on the crossbeam frame 201.

[0023] The adjustment unit 202 includes a vertical drive motor 204, which is connected to the assembly assembly 30 and controls the assembly assembly 30 to move along the axial direction of the vertical drive motor 204.

[0024] Specifically, refer to Figure 3 As shown, the assembly component 30 includes a connecting frame 301, and a horizontal drive motor 302 is mounted below the connecting frame 301. A top block 303 is provided at one end of the horizontal drive motor 302, and the top block 303 is moved by the horizontal drive motor 302.

[0025] An extension frame 304 is also provided on one side of the horizontal drive motor 302, and a receiving cavity 305 is provided below the extension frame 304. The receiving cavity 305 is provided with a compression assembly 31.

[0026] In this embodiment, the hard drive casing is automatically transported to the assembly station by the conveying component 10, the assembly component 30 is positioned by the adjusting component 20, and the read / write head arm is finally pressed in by the pressing component 31. The conveying component 10 directionally transports the hard drive casing to the assembly position. The support plate 101 supports the entire conveying structure, and the conveying wheels 104 are mounted on the side wall frame and driven by an external motor to rotate forward or backward, pushing the hard drive casing forward or backward. Infrared sensors 105 are installed on both sides of the side wall frame 103. When the hard drive casing enters between the two sensors, a trigger signal stops the external motor, ensuring that the casing stops accurately at the assembly station.

[0027] Adjustment component 20 controls the spatial positioning of assembly component 30. The moving track of adjustment unit 202 is supported by crossbeam frame 201. Horizontal axis drive motors 203 are located on both sides of the crossbeam frame, driving adjustment unit 202 to move horizontally along the crossbeam frame (X-axis). Adjustment unit 202 is obliquely mounted on the crossbeam frame to improve structural stability. An integrated vertical drive motor 204 connects to and controls the vertical movement of assembly component 30 (Z-axis).

[0028] Assembly component 30 performs fine-tuning and pressing of the read / write head arm. Connecting bracket 301 is linked with vertical drive motor 204 to achieve overall lifting. Horizontal drive motor 302 is installed below the connecting bracket, driving top block 303 to move horizontally (Y-axis) to fit against the hard drive casing, facilitating subsequent pressing of the read / write head arm.

[0029] The extension frame 304 extends above the hard drive casing, and the accommodating cavity 305 below it houses the pressing assembly 31. The pressing assembly 31 ultimately presses the read / write head arm into the hard drive casing.

[0030] During assembly, the position of the read / write head arm must be extremely precise to ensure the correct flight altitude is maintained on all platter surfaces and all tracks. Hard drives typically consist of multiple stacked platters. The read / write head is integrated into the head arm; during assembly, it must be ensured that each head is precisely positioned above or below its corresponding platter surface and does not touch adjacent platters.

[0031] In one embodiment, reference Figure 4 As shown, the extrusion assembly 31 includes a guide shaft 311, on which a first push shaft 312 and a second push shaft 313 are slidably connected. The first push shaft 312 is connected to the second push shaft 313 via a first connecting rod group 314, and a third push shaft 315 is disposed between the first push shaft 312 and the second push shaft 313. The third push shaft 315 is connected to the first push shaft via a second connecting rod group 316.

[0032] A sleeve shaft 317 is provided at one end of the second push shaft 313, which is away from the third push shaft 315. A pressure head 318 is fixedly connected to one end of the sleeve shaft 317. The first push shaft 312 is connected to an external drive cylinder to control its movement on the guide shaft 311.

[0033] Specifically, the first push shaft 312 and the second push shaft 313 are rigidly connected by the first connecting rod group 314 to achieve synchronous linear motion. At this time, the pressure head 318 approaches the magnetic head arm at high speed, shortening the non-operation time.

[0034] Subsequently, the third push shaft 315 acts as a lever fulcrum, converting the displacement of the first push shaft 312 into reverse pressure on the second push shaft 313, forming a force amplification effect, which causes the pressure head 318 to generate controllable micron-level downward pressure.

[0035] Traditional direct-pressure cylinders suffer from inertial impact, which can easily cause the read / write head arm to shift or collide with adjacent platters. This embodiment avoids inertial errors by using a two-stage motion for rapid positioning and precise pressing. The stacked hard drive structure requires multiple read / write head arms to be pressed synchronously; this embodiment uses a three-stage push shaft + linkage assembly to form a parallel force application system, ensuring uniform force on all pressing heads 318.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hard disk drive head arm assembly device, comprising a conveying assembly for transporting the hard disk drive casing, an adjustment assembly for mounting the head arm, and an assembly assembly. Its features are, The assembly component includes a connecting frame, a horizontal drive motor is mounted below the connecting frame, and a top block is provided at one end of the horizontal drive motor. An extension frame is also provided on one side of the horizontal drive motor, and a receiving cavity is provided below the extension frame. An extrusion assembly is provided inside the receiving cavity.

2. The hard disk head arm assembly equipment according to claim 1, characterized in that, The extrusion assembly includes a guide shaft, on which a first push shaft and a second push shaft are slidably connected. The first push shaft is connected to the second push shaft via a first connecting rod assembly, and a third push shaft is disposed between the first push shaft and the second push shaft. The third push shaft is connected to the first push shaft via a second connecting rod assembly.

3. The hard disk head arm assembly equipment according to claim 2, characterized in that, A sleeve is provided at one end of the third push shaft, which is located away from the second push shaft. A pressure head is fixedly connected to one end of the sleeve. The first push shaft is connected to an external drive cylinder, which controls its movement on the guide shaft.

4. The hard disk head arm assembly equipment according to claim 1, characterized in that, The conveying assembly includes a support plate, and one or more conveying tracks are disposed above the support plate. The conveying track includes a pair of sidewall frames, on which a number of conveying wheels are mounted.

5. The hard disk head arm assembly equipment according to claim 4, characterized in that, The sidewalls are also equipped with infrared sensors on both sides to limit the travel distance of the hard drive casing.

6. The hard disk head arm assembly equipment according to claim 5, characterized in that, The adjustment assembly includes a crossbeam frame, and one or more adjustment units are disposed above the crossbeam frame. The adjustment unit is obliquely installed above the crossbeam frame and can move horizontally along the crossbeam frame. Horizontal shaft drive motors are provided on both sides of the crossbeam frame, and the adjustment unit moves on the crossbeam frame by the horizontal shaft drive motors.

7. The hard disk head arm assembly equipment according to claim 6, characterized in that, The adjustment unit includes a vertical drive motor, which is linked to the assembly assembly and controls the assembly assembly to move along the axial direction of the vertical drive motor.

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