Polishing sheet for fine polishing of mobile phone screen

Abstract

The utility model relates to the field of screen fine polishing discloses a polishing disc for mobile phone screen fine polishing, including polisher, the left side of polisher's front surface is opened with power button, the upper surface fixed mounting of polisher has the speed knob, the output end detachable connection of polisher has the polishing disc, the right -hand member of polisher's front surface is opened with the sliding slot, the inside of sliding slot is provided with adjusting assembly, the upside of adjusting assembly is provided with auxiliary assembly, adjusting assembly includes the adjusting platform. In the utility model, through the mutual cooperation of the connecting relationship between the adjusting seat, adjusting platform, locating buckle and other parts in the equipment, the screen is positioned and self-locked in X axis and pitch two dimensions at one time, the debugging time of equipment is reduced, the work efficiency of equipment is improved, rigid chain transmission cutting reaction force is restrained, and the equipment polishing effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of fine screen polishing, and more particularly to polishing discs for fine polishing of mobile phone screens. Background Technology

[0002] As the core interface for human-computer interaction, the surface quality of a mobile phone screen directly affects the user's visual experience, tactile feel, and the overall quality of the product. With the rapid development of smartphone technology, screen sizes are constantly increasing, bezels are continuously narrowing, and brittle materials such as glass are commonly used, placing extremely high demands on surface flatness, smoothness, and stress control. In the manufacturing process of mobile phone screens, fine polishing is one of the key steps to ensure surface quality, and polishing discs are the core tools for achieving this.

[0003] The above-mentioned device has the following defects: conventional fixtures only have slide rails in a single straight direction, which cannot simultaneously meet the multi-dimensional fine adjustment of X-axis position, pitch angle and horizontal angle. This results in the chamfer angle relying on manual experience, poor batch consistency, and the adjustment mechanism mostly adopts a cantilever structure. The cutting reaction force acts directly on the motor output shaft, which is prone to resonance, leading to edge burn or increased edge chipping rate. Therefore, a polishing disc for fine polishing of mobile phone screens is proposed to solve the above problems. Summary of the Invention

[0004] To overcome the above shortcomings, this utility model provides a polishing disc for fine polishing of mobile phone screens, which aims to improve the problem of trembling caused by the single adjustment dimension and insufficient rigidity in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a polishing disc for fine polishing of mobile phone screens, comprising a polishing machine, wherein a power button is provided on the left side of the front surface of the polishing machine, a speed adjustment knob is fixedly installed on the upper surface of the polishing machine, a polishing disc is detachably connected to the output end of the polishing machine, a sliding groove is provided on the right end of the front surface of the polishing machine, an adjustment component is provided inside the sliding groove, an auxiliary component is provided on the upper side of the adjustment component, the adjustment component includes an adjustment platform, an adjustment seat is fixedly connected to the top of both the front and rear surfaces of the adjustment platform via a rotating column, a positioning buckle is detachably connected to the groove of the adjustment seat, a processing plate is detachably connected to the inner surface of the adjustment seat, and a moving groove is provided on the upper surface of the processing plate.

[0006] As a further description of the above technical solution: the auxiliary component includes a protractor, the upper surface of which is provided with an auxiliary groove, the bottom of which is rotatably connected to a movable plate via a rotating shaft, the upper surface of which is fixedly mounted with a fixing bolt, the threaded part of the outer wall of which is detachably connected with a fixing washer, and the rear surface of which is fixedly connected with a backing plate.

[0007] As a further description of the above technical solution: the rotating column is connected through a groove on the front surface of the adjustment platform.

[0008] As a further description of the above technical solution: the movable plate is slidably connected to the inner wall of the movable groove.

[0009] As a further description of the above technical solution: the bottom end of the rotating shaft is rotatably connected to the rear end of the upper surface of the moving plate, and the outer wall of the rotating shaft is fixedly connected to the inner wall groove of the protractor.

[0010] As a further description of the above technical solution: the fixing gasket is fixedly installed in the inner wall of the auxiliary groove by fixing bolts.

[0011] As a further description of the above technical solution: the adjustment platform is detachably connected to the inner wall of the slide groove by positioning bolts.

[0012] As a further description of the above technical solution: the protractor is detachably connected to the upper surface of the processing plate via a movable plate.

[0013] This utility model has the following beneficial effects: 1. In this utility model, by utilizing the mutual cooperation between the adjustment seat, adjustment table, positioning buckle and other components in the equipment, the screen can be accurately positioned and self-locked in both the X-axis and pitch dimensions at one time, which reduces the debugging time of the equipment and improves the working efficiency of the equipment. At the same time, the rigid chain transmits the cutting reaction force, suppresses the trembling of the blade, and improves the grinding effect of the equipment.

[0014] 2. In this utility model, the equipment has the function of fine adjustment of horizontal angle by means of the cooperation between the moving plate, protractor, fixed pad and other components in the equipment through the connection relationship. With the rigid reference of the backing plate, the edge angle of screens of different sizes can be visualized and locked. The error of single-piece clamping repeatability is reduced and the batch consistency is significantly improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main body of the polishing disc for fine polishing of mobile phone screens proposed in this utility model. Figure 2 This is a side view of the main body of the polishing disc for fine polishing of mobile phone screens proposed in this utility model. Figure 3 This is an exploded view of a portion of the adjustment platform of the polishing disc for fine polishing of mobile phone screens proposed in this utility model. Figure 4 This is a partial schematic diagram of the protractor of the polishing disc for fine polishing of mobile phone screens proposed in this utility model.

[0016] Legend: 1. Grinding machine; 2. Power button; 3. Speed ​​control knob; 4. Grinding disc; 5. Adjustment assembly; 51. Adjustment table; 511. Positioning bolt; 52. Adjustment seat; 521. Rotating column; 522. Positioning buckle; 53. Processing plate; 531. Moving groove; 6. Auxiliary assembly; 61. Protractor; 62. Auxiliary groove; 63. Moving plate; 64. Fixing shim; 65. Fixing bolt; 66. Support plate; 67. Rotating shaft; 7. Slide groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a polishing disc for fine polishing of mobile phone screens, comprising a polishing machine 1. The polishing machine 1 serves as the power source for the entire machine, and its built-in motor can output rotational torque to provide a continuously adjustable speed for the polishing disc 4. It also provides a rigid mounting base for the slide groove 7, adjustment assembly 5, and auxiliary assembly 6. A power button 2 is located on the left side of the front surface of the polishing machine 1. The power button 2 is used to connect or disconnect the power supply circuit of the internal motor of the polishing machine 1, realizing the start-stop control of the entire machine. A speed adjustment knob 3 is fixedly installed on the upper surface of the polishing machine 1, and the speed adjustment knob 3 is connected to the internal PWM speed control of the polishing machine 1. The module is electrically connected for stepless adjustment of the motor output speed to meet the fine polishing needs of mobile phone screens made of different materials. The output end of the polishing machine 1 is detachably connected to a polishing disc 4. The end face of the polishing disc 4 is attached with microcrystalline sandpaper or diamond grinding discs for fine grinding, polishing or chamfering of the mobile phone screen surface. The right end of the front surface of the polishing machine 1 is provided with a slide groove 7. The slide groove 7 provides linear guidance and multi-point positioning function in the X-axis direction for the adjustment table 51, realizing quick modular disassembly and assembly of the whole machine and the adjustment component 5. The adjustment component 5 is set inside the slide groove 7, and the auxiliary component 6 is set on the upper side of the adjustment component 5.

[0019] Reference Figure 2 - Figure 4The adjustment assembly 5 includes an adjustment platform 51, which serves as the base of the adjustment assembly 5. The platform is locked to the slide groove 7 via positioning bolts 511, providing vertical support and horizontal sliding guidance. The adjustment platform 51 is detachably connected to the inner wall of the slide groove 7 via positioning bolts 511. The positioning bolts 511 pass through the side wall of the adjustment platform 51 and are threaded into the slide groove 7, used to lock the adjustment platform 51 at any selected position in the slide groove 7, achieving X-axis positioning. Adjustment seats 52 are fixedly connected to the top of both the front and rear surfaces of the adjustment platform 51 via rotating columns 521. The adjustment seats 52 are hinged to the adjustment platform 51 via the rotating columns 521, used to support the processing plate 53 and allow it to adjust its pitch angle around the axis of the rotating columns 521. The rotating columns 521 are inserted through a groove on the front surface of the adjustment platform 51 and are fixed to the adjustment seat 521. The two sides of the adjustment seat 52 serve as rotation axes, allowing the adjustment seat 52 to swing ±θ relative to the adjustment table 51 to complete the coarse adjustment of the processing angle. A positioning buckle 522 is detachably connected to the groove of the adjustment seat 52. The positioning buckle 522 is pluggably installed in the groove of the adjustment seat 52 and is used to engage with the adjustment table 51 after the angle is adjusted to lock the current pitch angle of the adjustment seat 52. A processing plate 53 is detachably connected to the inner surface of the adjustment seat 52. The processing plate 53 is detachably installed on the inner surface of the adjustment seat 52. The upper surface of the processing plate 53 has a moving groove 531 that provides a linear guide for the moving plate 63 to support the mobile phone screen and ensure its flatness. The upper surface of the processing plate 53 has a moving groove 531, which serves as a linear guide for the moving plate 63 to ensure that the protractor 61 and the mobile phone screen are accurately positioned in the Z-axis direction.

[0020] Reference Figure 2 - Figure 4The auxiliary component 6 includes a protractor 61, which is detachably connected to the upper surface of the processing plate 53 via a movable plate 63. The protractor 61 is connected to the movable plate 63 via a rotating shaft 67. Its scale surface is used to read the angle between the edge of the mobile phone screen and the grinding disc 4, thus visualizing the angle. An auxiliary groove 62 is provided on the upper surface of the protractor 61. The auxiliary groove 62 is provided on the upper surface of the protractor 61 to accommodate the fixing shim 64 after the protractor 61 is rotated into position, and provides threaded locking. In the space, the bottom of the protractor 61 is rotatably connected to a movable plate 63 via a rotating shaft 67. The movable plate 63 is slidably embedded in the movable groove 531, used to support the protractor 61 and drive it to translate along the Z-axis to adapt to the processing reference of mobile phone screens of different sizes. The bottom end of the rotating shaft 67 is rotatably connected to the rear end of the upper surface of the movable plate 63. The outer wall of the rotating shaft 67 is fixedly connected to the inner wall groove of the protractor 61. The lower end of the rotating shaft 67 is rotatably connected to the movable plate 63, and the upper end is connected to the protractor. A fixed connection 61 allows the protractor 61 to rotate horizontally around the axis of rotation 67 for fine-tuning of the angle. A sliding plate 63 is slidably connected to the inner wall of the sliding groove 531. A fixing bolt 65 is fixedly installed on the upper surface of the sliding plate 63. The fixing bolt 65 is vertically installed on the upper surface of the sliding plate 63, and its threaded end passes through the auxiliary groove 62 and cooperates with the fixing washer 64 to lock or release the protractor 61. The fixing washer 64 is detachably connected to the threaded part of the outer wall of the fixing bolt 65. The fixing washer 64 is sleeved on the outer wall of the fixing bolt 65, and its lower surface is in contact with the auxiliary groove 62. By tightening the fixing bolt 65, the protractor 61 is pressed onto the sliding plate 63 to achieve angle locking. The fixing washer 64 is fixedly installed in the inner wall of the auxiliary groove 62 by the fixing bolt 65. A back plate 66 is fixedly connected to the rear surface of the protractor 61. The back plate 66 is vertically fixed to the rear surface of the protractor 61 as a rigid positioning reference for the edge of the mobile phone screen to ensure that the screen does not tilt during the polishing process.

[0021] Working principle: The operator first presses the power button 2 located on the left side of the front surface of the polisher 1 to connect the internal motor of the polisher 1 to the external power supply, and the motor rotor enters the driveable state. According to the material and process requirements of the screen to be polished, the operator rotates the speed adjustment knob 3 on the upper surface of the polisher 1. The PWM speed adjustment module steplessly adjusts the motor output speed according to the knob potential signal, thereby changing the linear speed of the polishing disc 4 to adapt to the cutting amount of different brittle materials such as glass, sapphire or UTG.

[0022] The groove 7 on the right end of the front surface of the grinder 1 extends along the X-axis. The adjustment table 51 is threadedly connected to the groove 7 via a positioning bolt 511. Loosening the positioning bolt 511 allows the adjustment table 51 to slide horizontally along the groove 7. Tightening the positioning bolt 511 fixes the adjustment table 51 at the selected X-coordinate, completing the lateral relative positioning of the grinding disc 4 and the mobile phone screen. The top of the adjustment table 51 is hinged to the adjustment seat 52 via a rotating column 521. The rotating column 521 acts as a pivot, allowing the adjustment seat 52 to tilt ±θ around its axis. When the screen edge needs chamfering, the operator raises or lowers the adjustment seat 52 to the target angle. Once the angle is in place, the positioning buckle 522 is inserted into the groove of the adjustment seat 52 and engages with the adjustment table 51, locking the tilt angle of the adjustment seat 52 and preventing springback due to cutting reaction force during grinding. The processing plate 53 is detachably mounted to the adjustment seat 52 via screws or clips. The inner surface, with its upper surface ground to ensure flatness, allows the mobile phone screen to be placed flat on the processing plate 53. The moving groove 531 runs through the processing plate 53 along the Z-axis, providing guidance for subsequent Z-axis adjustments. The moving plate 63 is slidably embedded in the moving groove 531 and can move back and forth along the Z-axis to accommodate screens of different lengths and sizes. The rear end of the upper surface of the moving plate 63 is rotatably connected to the protractor 61 via a rotating shaft 67. The protractor 61 can rotate around the rotating shaft 67 in the horizontal plane to achieve fine adjustment of the angle between the screen edge and the grinding disc 4. The auxiliary groove 62 on the upper surface of the protractor 61 is an arc-shaped elongated hole. The fixing bolt 65 passes through the auxiliary groove 62 and is screwed into the moving plate 63. The fixing shim 64 is fitted onto the outer wall of the fixing bolt 65. When the protractor 61 is rotated to the required angle, the fixing bolt 65 is tightened, and the fixing shim 64 presses against the inner wall of the auxiliary groove 62 to achieve rigid locking between the protractor 61 and the moving plate 63.

[0023] The rear surface of the protractor 61 is vertically fixed to the abutment plate 66, and one edge of the mobile phone screen is tightly attached to the abutment plate 66 to form a rigid reference. This prevents the screen from shifting laterally in the XY plane during polishing, ensuring the consistency of the chamfer or polishing contour. The operator holds the polisher 1 with both hands and gently presses the polishing disc 4, which has been fitted with microcrystalline sandpaper or diamond grinding discs, onto the surface of the mobile phone screen. The motor torque is transmitted to the polishing disc 4 through the output shaft, generating high-speed rotational cutting. The speed can be finely adjusted in real time by the speed control knob 3. Combined with multi-dimensional adjustments of the X-axis, pitch angle, and horizontal angle, micron-level material removal can be achieved. During polishing, the protractor 61 and the abutment plate 66... 6. Real-time feedback of angle and position information ensures that the edge chamfering angle error is ≤ ±0.5°. The rigid chain formed by the processing plate 53, the moving plate 63, the adjusting seat 52 and the adjusting table 51 transmits the cutting reaction force to the outer shell of the grinding machine 1, effectively suppressing resonance and trembling. After processing, loosen the fixing bolt 65, rotate the protractor 61 or pull the moving plate 63 back to quickly remove the screen, loosen the positioning buckle 522, reset the adjusting seat 52 to the horizontal, loosen the positioning bolt 511, and pull out the adjusting table 51 along the slide groove 7 to realize the modular separation of the whole machine from the adjusting component 5 and the auxiliary component 6, which is convenient for maintenance or replacement of consumables.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 polishing sheet for fine polishing of a mobile phone screen, comprising a polisher (1), characterized in that: A power button (2) is provided on the left side of the front surface of the grinder (1). A speed adjustment knob (3) is fixedly installed on the upper surface of the grinder (1). A grinding disc (4) is detachably connected to the output end of the grinder (1). A slide groove (7) is provided on the right side of the front surface of the grinder (1). An adjustment component (5) is provided inside the slide groove (7). An auxiliary component (6) is provided on the upper side of the adjustment component (5). The adjustment assembly (5) includes an adjustment platform (51). The top of the front and rear surfaces of the adjustment platform (51) are fixedly connected to adjustment seats (52) via rotating columns (521). A positioning buckle (522) is detachably connected to the groove of the adjustment seat (52). A processing plate (53) is detachably connected to the inner surface of the adjustment seat (52). A moving groove (531) is provided on the upper surface of the processing plate (53).

2. The polishing sheet for fine polishing of a cell phone screen according to claim 1, wherein: The auxiliary component (6) includes a protractor (61), an auxiliary groove (62) is provided on the upper surface of the protractor (61), a movable plate (63) is rotatably connected to the bottom of the protractor (61) via a rotating shaft (67), a fixing bolt (65) is fixedly installed on the upper surface of the movable plate (63), a fixing washer (64) is detachably connected to the thread on the outer wall of the fixing bolt (65), and a backing plate (66) is fixedly connected to the rear surface of the protractor (61).

3. The polishing sheet for fine polishing of a cell phone screen according to claim 1, wherein: The rotating column (521) is connected through a groove on the front surface of the adjusting table (51).

4. The polishing sheet for fine polishing of a cell phone screen according to claim 2, wherein: The movable plate (63) is slidably connected to the inner wall of the movable groove (531).

5. The polishing sheet for fine polishing of a cell phone screen according to claim 2, wherein: The bottom end of the rotating shaft (67) is rotatably connected to the rear end of the upper surface of the moving plate (63), and the outer wall of the rotating shaft (67) is fixedly connected to the inner wall groove of the protractor (61).

6. The polishing sheet for fine polishing of a cell phone screen according to claim 2, wherein: The fixing gasket (64) is fixedly installed in the inner wall of the auxiliary groove (62) by fixing bolts (65).

7. The polishing sheet for fine polishing of a cell phone screen according to claim 1, wherein: The adjustment platform (51) is detachably connected to the inner wall of the slide (7) by positioning bolts (511).

8. The polishing sheet for fine polishing of a cell phone screen according to claim 2, wherein: The protractor (61) is detachably connected to the upper surface of the processing plate (53) via a movable plate (63).

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