Grinding head clamp for polishing 3D mobile phone rear cover glass

By designing a grinding head clamp with clamping, blowing, and limiting components, the problems of grinding head slippage and chip removal were solved, achieving stable clamping of the grinding head and chip removal, thus improving grinding efficiency and safety.

CN120941277APending Publication Date: 2025-11-14LONGYAN JIAMEI TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202511159954.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-19
Publication Date
2025-11-14

AI Technical Summary

Technical Problem

Existing grinding head chucks are prone to slipping when holding the grinding head and lack effective waste chip cleaning measures, which affects grinding efficiency and safety.

Method used

A grinding head clamping device is designed, comprising a clamping component, a blowing component, and a limiting component. The clamping component securely clamps the grinding head rod, the blowing component blows air downwards to remove debris, and the limiting component ensures clamping stability.

Benefits of technology

It achieves stable clamping and rapid opening and closing of the grinding head, effectively removing grinding debris and improving grinding efficiency and safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a grinding head clamp for 3D mobile phone rear cover glass polishing, and belongs to the technical field of mobile phone rear cover glass machining.The grinding head clamp comprises a grinding head rod, a grinding head fixedly arranged at the bottom end of the grinding head rod and a mounting base, a clamping assembly is slidably arranged in the mounting base, and the clamping assembly is used for clamping and positioning the grinding head rod; the clamping assembly is provided with an air blowing assembly, the air blowing assembly is fixedly connected with the installation base, air is blown downwards through the air blowing assembly, the clamping assembly is provided with a limiting assembly, and the limiting assembly locks the clamping assembly. The grinding head can be conveniently and rapidly clamped, inserted and positioned, opening and closing are convenient and rapid, the clamping stability is guaranteed, air is synchronously blown downwards during grinding, waste chips can be blown away, and air blowing cooling can be conducted.
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Description

Technical Field

[0001] This invention belongs to the field of mobile phone back cover glass processing technology, and particularly relates to a grinding head fixture for polishing 3D mobile phone back cover glass. Background Technology

[0002] A 3D phone is a smartphone that can achieve naked-eye 3D display or 3D interaction. Through special screen technology or sensors, it allows users to experience stereoscopic visual effects without wearing 3D glasses.

[0003] Existing grinding heads require clamps to hold them when polishing glass. Traditional clamps are relatively simple in function, relying solely on friction to hold the grinding head, which can easily lead to slippage. Furthermore, they lack measures to simultaneously blow air onto the polishing area during clamping, making it difficult to clean up grinding debris. Therefore, we propose a grinding head clamp for polishing the back cover glass of 3D mobile phones. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a grinding head fixture for polishing the back cover glass of 3D mobile phones.

[0005] To achieve the above objectives, the present invention proposes a grinding head fixture for polishing the back cover glass of a 3D mobile phone, comprising a grinding head rod, a grinding head fixedly disposed at the bottom end of the grinding head rod, and a mounting base. A clamping component is slidably disposed inside the mounting base for clamping and positioning the grinding head rod. A blowing component is provided on the clamping component, which is fixedly connected to the mounting base and blows air downwards through the blowing component. A limiting component is provided on the clamping component for locking the clamping component.

[0006] Preferably, the clamping assembly includes two sliders, a horizontal plate is fixedly connected to the side of the two sliders that are close to each other, two movable blocks are slidably arranged inside the horizontal plate, a clamping plate is fixedly connected to the bottom of the movable blocks, and a plug rod is fixedly connected to the side of the two clamping plates that are far from each other. A toggle rod is fixedly connected to the top of the movable blocks, a fixed frame is fixedly connected to the top of the horizontal plate, a first drive motor is fixedly connected to the fixed frame, a toggle plate is fixedly connected to the output shaft of the first drive motor, and the toggle rod is movably sleeved in the toggle plate. A transmission tube is fixedly connected to the top of the fixed frame, a rotary joint is rotatably connected to the top of the transmission tube, a driven bevel gear is fixedly sleeved on the outside of the transmission tube, a fixed plate is fixedly connected to the inner wall of one side of the mounting base, a second drive motor is fixedly connected to the bottom of the fixed plate, a driving bevel gear is fixedly connected to the output shaft of the second drive motor, and the driving bevel gear meshes with the driven bevel gear for transmission.

[0007] Preferably, the blower assembly includes two side plates fixedly connected to the inner wall of the mounting base. A rotating shaft is rotatably connected to the bottom of the side plates. A fan blade is fixedly connected to the bottom end of the rotating shaft. A first synchronous pulley is fixedly sleeved on the outside of the transmission tube. Second synchronous pulleys are fixedly sleeved on both sides of the first synchronous pulley and outside the rotating shaft. A synchronous belt is sleeved on the outside of both the first and second synchronous pulleys. A support plate fixedly connected to the mounting base is provided at the bottom of the synchronous belt.

[0008] Preferably, the limiting component includes two push rod motors fixedly connected to the fixed frame. Below the push rod motors is a movable plate movably sleeved outside the first drive motor. The bottom of the movable plate is fixedly connected to two limiting posts. The top of the movable plate has two positioning holes, and the output shaft of the push rod motor is inserted into the positioning holes. The limiting posts are provided with magnetic sleeves.

[0009] Preferably, the top of the mounting base is provided with multiple protruding plates, the protruding plates are provided with bolt holes, the interior of the mounting base is provided with an annular slide rail, and the slider is slidably disposed in the annular slide rail.

[0010] Preferably, the rotary joint is provided with a plug hole, and a wire is connected to the rotary joint and passes through the transmission tube. The wire is electrically connected to the first drive motor, the second drive motor and the push rod motor.

[0011] Preferably, the grinding head rod has two insertion holes, and the insertion rod is movably inserted into the insertion holes.

[0012] Preferably, the actuating plate has an arc-shaped hole, and the actuating rod is movably sleeved in the arc-shaped hole.

[0013] The grinding head fixture for polishing the back cover glass of 3D mobile phones proposed in this invention can bring the following benefits:

[0014] Beneficial effects:

[0015] 1. The grinding head rod is clamped by the clamping assembly, and it is also inserted and positioned at the same time. It is convenient to open and close quickly by electric control without manual operation. The positioning is achieved by the limit assembly during clamping, which helps to stabilize the clamping of the grinding head rod.

[0016] 2. The grinding head is clamped by the clamping component and rotated to perform grinding operations. At the same time, the blowing component works synchronously. The blowing component blows air downwards to remove waste chips in time and can also cool down the machine.

[0017] In summary, this solution has a simple structure and a novel design. It not only facilitates quick and easy clamping and positioning of the grinding head, and allows for rapid opening and closing while ensuring clamping stability, but also provides simultaneous downward airflow during grinding, which helps to remove waste chips and allows for cooling. Attached Figure Description

[0018] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0019] In the attached diagram:

[0020] Figure 1 This is a front view structural diagram of the present invention.

[0021] Figure 2 This is a side view of the structure of the present invention.

[0022] Figure 3 This is a first-view three-dimensional structural diagram of the present invention.

[0023] Figure 4 This is a second-view three-dimensional structural diagram of the present invention.

[0024] Figure 5 This is a three-dimensional structural diagram of the clamping component of the present invention.

[0025] Figure 6 This is a three-dimensional structural diagram of the blower assembly of the present invention.

[0026] Figure 7 This is a three-dimensional structural diagram of the limiting component of the present invention.

[0027] Figure 8 This is a three-dimensional structural diagram of the mounting base of the present invention.

[0028] In the diagram: 1. Grinding head rod, 2. Grinding head, 3. Mounting base, 4. Circular slide rail, 5. Clamping assembly, 501. Slider, 502. Horizontal plate, 503. Movable block, 504. Clamping plate, 505. Connecting rod, 506. Actuating rod, 507. Fixing frame, 508. First drive motor, 509. Actuating plate, 510. Transmission pipe, 511. Rotary joint, 512. Driven bevel gear, 513. Fixing plate, 514. Second drive motor, 515. Driven bevel gear, 6. Blowing assembly, 601. Side plate, 602. Rotating shaft, 603. Fan blade, 604. First synchronous pulley, 605. Second synchronous pulley, 606. Synchronous belt, 607. Support plate, 7. Limiting assembly, 701. Push rod motor, 702. Movable plate, 703. Limiting post, 8. Protruding plate. Detailed Implementation

[0029] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0030] In the description of this invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] like Figures 1 to 8As shown, an embodiment of the present invention provides a grinding head fixture for polishing the back cover glass of a 3D mobile phone, including a grinding head rod 1, a grinding head 2 fixedly disposed at the bottom end of the grinding head rod 1, and a mounting base 3. A clamping component 5 is slidably disposed inside the mounting base 3. The clamping component 5 is used to clamp and position the grinding head rod 1. A blowing component 6 is provided on the clamping component 5. The blowing component 6 is fixedly connected to the mounting base 4 and blows air downward through the blowing component 6. A limiting component 7 is provided on the clamping component 6 to lock the clamping component 6.

[0035] like Figure 5 As shown, the clamping assembly 5 includes two sliders 501. A horizontal plate 502 is fixedly connected to the side of the two sliders 501 that is close to each other. Two movable blocks 503 are slidably arranged inside the horizontal plate 502. A clamping plate 504 is fixedly connected to the bottom of the movable blocks 503. A plug-in rod 505 is fixedly connected to the side of the two clamping plates 504 that is far from each other. A toggle rod 506 is fixedly connected to the top of the movable blocks 503. A fixed frame 507 is fixedly connected to the top of the horizontal plate 502. A first drive motor 508 is fixedly connected to the fixed frame 507. A toggle plate 509 is fixedly connected to the output shaft of the first drive motor 508, and the toggle rod 506 is movably sleeved in the toggle plate 509. A transmission tube 510 is fixedly connected to the top of the fixed frame 507. A rotary joint 511 is rotatably connected to the top of the transmission tube 510. A driven bevel gear 512 is fixedly sleeved on the outside of the transmission tube 510. A fixed plate 513 is fixedly connected to the inner wall of one side of the mounting base 3. A fixed plate 513 is fixedly connected to the bottom of the fixed plate 513. A second drive motor 514 is connected, and the output shaft of the second drive motor 514 is fixedly connected to a driving bevel gear 515. The driving bevel gear 515 meshes with the driven bevel gear 512 for transmission. During clamping, the first drive motor 508 drives the actuating plate 509 to rotate. The actuating plate 509 then drives the two actuating rods 506 to move closer together. The actuating rods 506 drive the movable blocks 503 to move closer together. The movable blocks 503 drive the clamping plates 504 to move closer together, thus clamping the grinding head rod 1. The clamping plate 504 also drives the insertion rods 505 to move closer to each other. The insertion rods 505 are inserted into the grinding head rod 1 for insertion and positioning, which facilitates the stable clamping of the grinding head rod 1. The second drive motor 514 drives the transmission tube 510 to rotate through the active bevel gear 515 and the driven bevel gear 512. The transmission tube 510 drives the fixed frame 507 to rotate, and the fixed frame 507 drives the horizontal plate 502 to rotate. In this way, the horizontal plate 502 drives the clamped grinding head rod 1 and grinding head 2 to rotate and perform grinding operations.

[0036] like Figure 5 and Figure 6As shown, the blower assembly 6 includes two side plates 601 fixedly connected to the inner wall of the mounting base 3. A rotating shaft 602 is rotatably connected to the bottom of the side plates 601. A fan blade 603 is fixedly connected to the bottom end of the rotating shaft 602. A first synchronous pulley 604 is fixedly sleeved on the outside of the transmission tube 510. Second synchronous pulleys 605 are fixedly sleeved on both sides of the first synchronous pulley 604 and the rotating shaft 602. A synchronous belt 606 is sleeved on the outside of both the first synchronous pulley 604 and the second synchronous pulley 605. A support plate 607 fixedly connected to the mounting base 3 is provided at the bottom of the synchronous belt 606. The transmission tube 510 drives the first synchronous pulley 604 to rotate. The first synchronous pulley 604 drives the two second synchronous pulleys 605 to rotate through the synchronous belt 606. The second synchronous pulleys 605 drive the rotating shaft 602 to rotate. The rotating shaft 602 drives the fan blade 603 to rotate and blow air. This downward air blowing facilitates the removal of grinding debris and can also be used for cooling.

[0037] like Figure 5 and Figure 7 As shown, the limiting component 7 includes two push rod motors 701 fixedly connected to the fixed frame 507. Below the push rod motors 701, there is a movable plate 702 movably sleeved outside the first drive motor 508. Two limiting posts 703 are fixedly connected to the bottom of the movable plate 702. Two positioning holes are opened on the top of the movable plate 702, and the output shaft of the push rod motors 701 is inserted into the positioning holes. The outer side of the limiting posts 703 is provided with a magnetic sleeve, which magnetically adheres to the surface of the actuating plate 509. When the actuating plate 509 rotates, it will drive the movable plate 702 and the limiting posts 703 to deflect synchronously. When clamping the grinding head rod 1, the output shaft of the push rod motors 701 is inserted into the positioning hole, thus positioning the movable plate 702, thereby locking the limiting posts 703 to the actuating plate 509. This reduces the force on the first drive motor 508 and ensures the stability of the clamping.

[0038] like Figure 5 and Figure 8 As shown, the top of the mounting base 3 is provided with multiple protruding plates 8, and bolt holes are provided on the protruding plates 8. The interior of the mounting base 3 is provided with an annular slide rail 4, and the slider 501 is slidably disposed in the annular slide rail 4, which guides the slider 501.

[0039] like Figure 5 and Figure 7 As shown, the rotary joint 511 is provided with a plug hole, and a wire is connected to the rotary joint 511. The wire passes through the transmission tube 510 and is electrically connected to the first drive motor 508, the second drive motor 514 and the push rod motor 703. In this way, the first drive motor 508, the second drive motor 514 and the push rod motor 703 can also be powered normally when they rotate with the fixed frame 507.

[0040] like Figure 3 As shown, the grinding head rod 1 has two insertion holes, and the insertion rod 505 can be movably inserted into the insertion holes. The insertion holes facilitate the insertion of the insertion rod 505 and ensure the stability of the clamping.

[0041] like Figure 5 As shown, the toggle plate 509 has an arc-shaped hole, and the toggle rod 506 is movably sleeved in the arc-shaped hole.

[0042] Working principle: When clamping the grinding head rod 1, the grinding head rod 1 is placed between two clamping plates 504. At this time, the first drive motor 508 drives the actuating plate 509 to rotate. The actuating plate 509 drives the two actuating rods 506 to move closer together. The actuating rods 506 drive the movable blocks 503 to move closer together. The movable blocks 503 drive the clamping plates 504 to move closer together, clamping the grinding head rod 1. The clamping plates 504 also drive the insertion rods 505 to move closer together. The insertion rods 505 are inserted into the grinding head rod 1 for insertion and positioning. This facilitates the stable clamping of the grinding head rod 1. The magnetic sleeve will magnetically adhere to the surface of the actuating plate 509. When the actuating plate 509 rotates, it will drive the movable plate 702 and the limiting post 703 to deflect synchronously. When clamping the grinding head rod 1, the output shaft of the push rod motor 701 is inserted into the positioning hole, thus positioning the movable plate 702. The limit pin 703 locks the actuating plate 509, thus reducing the force on the first drive motor 508 and ensuring the stability of the clamping. The second drive motor 514 drives the transmission tube 510 to rotate through the active bevel gear 515 and the driven bevel gear 512. The transmission tube 510 drives the fixed frame 507 to rotate, and the fixed frame 507 drives the horizontal plate 502 to rotate. In this way, the horizontal plate 502 drives the clamped grinding head rod 1 and grinding head 2 to rotate and perform grinding operations. The transmission tube 510 also drives the first synchronous pulley 604 to rotate. The first synchronous pulley 604 drives the two second synchronous pulleys 605 to rotate through the synchronous belt 606. The second synchronous pulleys 605 drive the rotating shaft 602 to rotate, and the rotating shaft 602 drives the fan blade 603 to rotate and blow air. This downward air blowing facilitates the removal of grinding debris and can also be used for cooling.

[0043] When it is necessary to disassemble the grinding head rod 1, the output shaft of the push rod motor 701 retracts, thus releasing the positioning of the movable plate 702. At this time, the first drive motor 508 reverses its drive and drives the two clamping plates 504 away from each other, thus releasing the clamping of the grinding head rod 1.

[0044] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0045] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A grinding head fixture for polishing the back cover glass of a 3D mobile phone, comprising a grinding head rod (1), a grinding head (2) fixedly disposed at the bottom end of the grinding head rod (1), and a mounting base (3), characterized in that: The mounting base (3) is slidably provided with a clamping assembly (5), which is used to clamp and position the grinding head rod (1); The clamping assembly (5) is provided with a blowing assembly (6), which is fixedly connected to the mounting base (4). The blowing assembly (6) blows air downwards. The clamping assembly (6) is provided with a limiting assembly (7), which locks the clamping assembly (6).

2. The grinding head fixture for polishing the back cover glass of a 3D mobile phone according to claim 1, characterized in that: The clamping assembly (5) includes two sliders (501), and a horizontal plate (502) is fixedly connected to the side of the two sliders (501) that are close to each other. Two movable blocks (503) are slidably arranged inside the horizontal plate (502). A clamping plate (504) is fixedly connected to the bottom of the movable block (503). A plug-in rod (505) is fixedly connected to the side of the two clamping plates (504) that are far apart from each other. A toggle lever (506) is fixedly connected to the top of the movable block (503), a fixed frame (507) is fixedly connected to the top of the horizontal plate (502), a first drive motor (508) is fixedly connected to the fixed frame (507), and a toggle plate (509) is fixedly connected to the output shaft of the first drive motor (508), and the toggle lever (506) is movably sleeved in the toggle plate (509); A transmission tube (510) is fixedly connected to the top of the fixed frame (507), and a rotating joint (511) is rotatably connected to the top of the transmission tube (510). A driven bevel gear (512) is fixedly sleeved on the outside of the transmission tube (510). A fixed plate (513) is fixedly connected to the inner wall of one side of the mounting base (3). A second drive motor (514) is fixedly connected to the bottom of the fixed plate (513). An active bevel gear (515) is fixedly connected to the output shaft of the second drive motor (514), and the active bevel gear (515) meshes with the driven bevel gear (512) for transmission.

3. A grinding head fixture for polishing the back cover glass of a 3D mobile phone according to claim 2, characterized in that: The blower assembly (6) includes two side plates (601) fixedly connected to the inner wall of the mounting base (3), and a rotating shaft (602) is rotatably connected to the bottom of the side plates (601), and a fan blade (603) is fixedly connected to the bottom end of the rotating shaft (602). The transmission tube (510) is fixedly fitted with a first synchronous pulley (604). The first synchronous pulley (604) is fixedly fitted with a second synchronous pulley (605) on both sides of the shaft (602). The first synchronous pulley (604) and the second synchronous pulley (605) are both fitted with a synchronous belt (606). The bottom of the synchronous belt (606) is provided with a support plate (607) fixedly connected to the mounting base (3).

4. A grinding head fixture for polishing the back cover glass of a 3D mobile phone according to claim 3, characterized in that: The limiting component (7) includes two push rod motors (701) fixedly connected to the fixed frame (507), and a movable plate (702) is provided below the push rod motor (701) and movably sleeved outside the first drive motor (508); The bottom of the movable plate (702) is fixedly connected to two limiting posts (703), and the top of the movable plate (702) has two positioning holes, and the output shaft of the push rod motor (701) is inserted into the positioning holes. The limiting posts (703) are provided with magnetic sleeves.

5. A grinding head fixture for polishing the back cover glass of a 3D mobile phone according to claim 4, characterized in that: The mounting base (3) has multiple protruding plates (8) on its top, and bolt holes are provided on the protruding plates (8). The mounting base (3) has an annular slide rail (4) inside, and the slider (501) is slidably disposed in the annular slide rail (4).

6. A grinding head fixture for polishing 3D mobile phone back cover glass according to claim 5, characterized in that: The rotary joint (511) is provided with a plug hole, and a wire is connected to the rotary joint (511). The wire passes through the transmission tube (510) and is electrically connected to the first drive motor (508), the second drive motor (514) and the push rod motor (703).

7. A grinding head fixture for polishing 3D mobile phone back cover glass according to claim 6, characterized in that: The grinding head rod (1) has two insertion holes, and the insertion rod (505) is movably inserted into the insertion holes.

8. A grinding head fixture for polishing 3D mobile phone back cover glass according to claim 7, characterized in that: The actuating plate (509) has an arc-shaped hole, and the actuating rod (506) is movably sleeved in the arc-shaped hole.