Clamping device for myopia prevention and control lens polishing processing

Abstract

The utility model relates to the field of lens processing, in particular to a clamping device for myopia prevention and control lens polishing processing, which comprises a bottom plate, the top of the bottom plate is fixedly connected with polishing equipment and a shell, the shell is positioned on the lower side of the polishing equipment, and the front surface of the shell is fixedly connected with a fixing plate. Through the arrangement of the clamping mechanism, self-adaptive adjustment can be carried out according to the size and shape of a lens, two clamping plates can relatively move and firmly clamp the lens by adjusting rotation of a two-way screw, and therefore the lens polishing device adapts to myopia prevention and control lenses of different specifications and types, it is guaranteed that the lens is not prone to shaking in the polishing process, and the polishing efficiency is improved. According to the lens polishing device, the polishing precision and stability are improved, machining errors caused by shaking are avoided, through driving of a second motor, a placing plate can drive a lens to rotate, fixing of the lens at different placing angles is achieved, all parts of the lens can be evenly polished through the polishing device, and the polishing efficiency and quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of lens processing technology, and specifically relates to a clamping device for grinding and processing myopia control lenses. Background Technology

[0002] Myopia control lenses are often uniquely designed and come in various types, such as peripheral defocus lenses, multifocal lenses, and corneal contact lenses (such as orthokeratology lenses). These lenses work through various mechanisms, such as eliminating peripheral defocus and using progressive multifocal technology, to relieve eye strain and reduce the inducing effect of defocus on myopia, thereby achieving the goal of preventing and controlling myopia progression.

[0003] A search revealed that Chinese Patent Publication No. CN220260472U, authorized on December 29, 2023, discloses a lens polishing device for myopia control. The device includes a worktable with a motor mounting bracket fixedly connected to one outer wall. A first motor is mounted on the motor mounting bracket. A turntable is rotatably connected to the inner wall of the worktable. The center of the turntable's central axis is connected to the output end of the first motor. A second motor drives a first pulley to rotate, which in turn drives a polishing disc to rotate, polishing the lens. Simultaneously, the second pulley drives a lead screw to rotate, causing a slider to move a piston, compressing polishing fluid in an injection cylinder. The polishing fluid is then injected into the surface of the polishing disc through a spray pipe. This allows for efficient polishing of the lens while simultaneously cooling and cleaning it, preventing lens wear and improving the polishing accuracy of the device.

[0004] However, the device still has the following drawbacks: Although cooling and cleaning the lens prevents wear and improves the grinding accuracy, the inability to fix the lens during grinding causes it to shift or wobble. This instability prevents the grinding tools from precisely processing the lens, resulting in a decrease in grinding accuracy. This decrease in accuracy may lead to unevenness, scratches, or other defects on the lens surface, affecting the visual effect and wearing comfort. If the lens falls off or wobbles during grinding due to the inability to fix it, it may collide with other parts of the grinding equipment. Such collisions may damage or malfunction the equipment, increasing the cost of maintenance and replacement. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a clamping device for grinding and processing myopia control lenses, comprising a base plate, a grinding device and a housing fixedly connected to the top of the base plate, the housing being located below the grinding device, a fixing plate fixedly connected to the front surface of the housing, a bidirectional screw rotatably connected to the inner cavity of the housing, two threaded blocks threadedly connected to the surface of the bidirectional screw, one end of the bidirectional screw penetrating to the outside of the housing and being drivenly connected to a first motor, clamping mechanisms being provided on both sides of the inner cavity of the housing, a second motor fixedly connected to the top of the housing, and a placement plate being drivenly connected to the output end of the second motor.

[0006] Furthermore, the clamping mechanism includes square blocks disposed on both sides of the inner cavity of the housing. Two first protrusions are fixedly connected to one side of the square blocks. A connecting block is rotatably connected to the bottom of the first protrusion. A second protrusion is rotatably connected to the other end of the connecting block. One side of the second protrusion is fixedly connected to a threaded block. Limiting blocks are fixedly connected to both sides of the square blocks. One side of the limiting block extends through to the outside of the housing and is fixedly connected to a long plate. A moving block is fixedly connected to one side of the two long plates facing each other. A clamping plate is fixedly connected to one side of the moving block.

[0007] Furthermore, a mounting base is fitted onto the surface of the first motor, and a bolt is threaded onto the top of the mounting base. The fixing plate is detachably connected to the first motor via bolts.

[0008] Furthermore, a protective block is fixedly connected to one side of the clamp, and the protective block is arc-shaped.

[0009] Furthermore, support blocks are fixedly connected to the four corners of the bottom of the base plate, and the four support blocks are arranged symmetrically.

[0010] Furthermore, sliding grooves are provided on both sides of the bottom of the inner cavity of the housing, and a slider is slidably connected to the inner cavity of the sliding groove. The top of the slider is fixedly connected to the threaded block.

[0011] Furthermore, two guide rods are provided through one side of the square block. One end of the guide rod is fixedly connected to the housing, and the other end of the guide rod is fixedly connected to a limit plate.

[0012] The beneficial effects of this utility model are:

[0013] 1. The clamping mechanism in this device can adaptively adjust according to the size and shape of the lens. By adjusting the rotation of the bidirectional screw, the two clamping plates can move relative to each other and firmly clamp the lens, thus adapting to different specifications and types of myopia control lenses. This ensures that the lens does not easily shake during the grinding process, thereby improving the grinding accuracy and stability and avoiding processing errors caused by shaking. Driven by the second motor, the placement plate can rotate the lens to fix different placement angles of the lens, allowing the grinding equipment to grind all parts of the lens evenly, improving the grinding efficiency and quality.

[0014] 2. In this device, the mounting base and bolts work together to fix the first motor, while also facilitating disassembly and maintenance by the user. The protective block protects the lens, reducing contact between the clamping plate and the lens, thereby extending the lens's lifespan. The support block supports the clamping device, improving its stability during placement. The sliding groove and slider limit the threaded block, preventing it from rotating during movement. The guide rod and limit plate support the square block, improving its stability during movement.

[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A structural main body diagram according to an embodiment of the present utility model is shown;

[0018] Figure 2 A partial structural cross-sectional view according to an embodiment of the present invention is shown;

[0019] Figure 3 A schematic diagram of the structure of the second motor and the placement plate according to an embodiment of the present invention is shown.

[0020] In the diagram: 1. Base plate; 2. Grinding equipment; 3. Housing; 4. Fixing plate; 5. Bidirectional screw; 6. Threaded block; 7. First motor; 8. Clamping mechanism; 81. Square block; 82. First protrusion; 83. Connecting block; 84. Second protrusion; 85. Limiting block; 86. Long plate; 87. Moving block; 88. Clamping plate; 9. Second motor; 10. Placement plate; 11. Mounting base; 12. Protective block; 13. Support block; 14. Slide groove; 15. Slider; 16. Guide rod; 17. Limiting plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] This utility model embodiment provides a clamping device for grinding and processing myopia control lenses, including a base plate 1, exemplarily, such as... Figures 1-3 As shown.

[0023] The top of the base plate 1 is fixedly connected to a grinding device 2 and a housing 3. The housing 3 is located below the grinding device 2. A fixing plate 4 is fixedly connected to the front surface of the housing 3. A bidirectional screw 5 is rotatably connected to the inner cavity of the housing 3. Two threaded blocks 6 are threadedly connected to the surface of the bidirectional screw 5. One end of the bidirectional screw 5 extends through to the outside of the housing 3 and is driven by a first motor 7. Clamping mechanisms 8 are provided on both sides of the inner cavity of the housing 3. A second motor 9 is fixedly connected to the top of the housing 3. A placement plate 10 is driven by the output end of the second motor 9.

[0024] Specifically, the clamping mechanism 8 can be adaptively adjusted according to the size and shape of the lens. By adjusting the rotation of the bidirectional screw 5, the two clamping plates 88 can move relative to each other and firmly clamp the lens, thus adapting to different specifications and types of myopia control lenses. This ensures that the lens does not easily shake during the polishing process, thereby improving the polishing accuracy and stability and avoiding processing errors caused by shaking. Driven by the second motor 9, the placement plate 10 can drive the lens to rotate, thereby fixing the lens at different placement angles. This allows the polishing equipment 2 to polish all parts of the lens evenly, improving polishing efficiency and quality.

[0025] The clamping mechanism 8 includes square blocks 81 disposed on both sides of the inner cavity of the housing 3, such as... Figures 1-3 As shown.

[0026] Two first protrusions 82 are fixedly connected to one side of the square block 81. A connecting block 83 is rotatably connected to the bottom of the first protrusion 82. A second protrusion 84 is rotatably connected to the other end of the connecting block 83. One side of the second protrusion 84 is fixedly connected to the threaded block 6. Limiting blocks 85 are fixedly connected to both sides of the square block 81. One side of the limiting block 85 extends through to the outside of the housing 3 and is fixedly connected to a long plate 86. A moving block 87 is fixedly connected to the opposite side of the two long plates 86. A clamping plate 88 is fixedly connected to one side of the moving block 87.

[0027] Specifically, the clamping mechanism 8 enables the two clamping plates 88 to move relative to each other and firmly clamp the lens, ensuring that the lens does not easily shake during the polishing process, thereby improving the precision and stability of the polishing.

[0028] The surface of the first motor 7 is fitted with a mounting base 11, such as Figures 1-3 As shown.

[0029] The top of the mounting base 11 is threaded with bolts. The fixing plate 4 is detachably connected to the first motor 7 by bolts. A protective block 12 is fixedly connected to one side of the clamping plate 88. The protective block 12 is arc-shaped. Support blocks 13 are fixedly connected to the four corners of the bottom of the base plate 1. The four support blocks 13 are symmetrically arranged. Slide grooves 14 are opened on both sides of the bottom of the inner cavity of the housing 3. A slider 15 is slidably connected to the inner cavity of the slide groove 14. The top of the slider 15 is fixedly connected to the threaded block 6. Two guide rods 16 are provided through one side of the square block 81. One end of the guide rod 16 is fixedly connected to the housing 3. The other end of the guide rod 16 is fixedly connected to the limit plate 17.

[0030] Specifically, the mounting base 11 and bolts work together to fix the first motor 7, while also facilitating disassembly and maintenance by the user. The protective block 12 protects the lens, reducing contact between the clamping plate 88 and the lens, thereby extending the lens's lifespan. The support block 13 supports the clamping device, improving its stability during placement. The sliding groove 14 and slider 15 limit the movement of the threaded block 6, preventing it from rotating during movement. The guide rod 16 and limiting plate 17 support the square block 81, improving its stability during movement.

[0031] The working principle of the clamping device for grinding and processing myopia control lenses proposed in this embodiment is as follows:

[0032] When using the device, the lens is first placed on top of the placement plate 10. Then, the first motor 7 is started, and the output end of the first motor 7 drives the bidirectional screw 5 to rotate. When the bidirectional screw 5 rotates, it drives the two threaded blocks 6 to move relative to each other. The threaded blocks 6 drive the second protrusion 84 to move. When the second protrusion 84 moves, it drives one side of the connecting block 83 to move, so that the other side of the connecting block 83 drives the first protrusion 82 to move. The first protrusion 82 drives the square block 81 to slide on the surface of the guide rod 16, so that the two square blocks 81 move relative to each other. The square block 81 drives the limiting block 85 to move. The limiting block 85 drives the long plate 86 to move. The long plate 86 drives the moving block 87 to move. The moving block 87 drives the clamping plate 88 to move, so that the lens placed on top of the placement plate 10 can be clamped and fixed, so that it is not easy to shake during the polishing process. The user starts the second motor 9, and the output end of the second motor 9 drives the placement plate 10 to rotate. The placement plate 10 drives the lens to rotate, so that different placement angles of the lens can be fixed.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A clamping device for grinding and processing myopia control lenses, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to a grinding device (2) and a housing (3). The housing (3) is located below the grinding device (2). A fixing plate (4) is fixedly connected to the front surface of the housing (3). A bidirectional screw (5) is rotatably connected to the inner cavity of the housing (3). Two threaded blocks (6) are threadedly connected to the surface of the bidirectional screw (5). One end of the bidirectional screw (5) extends through to the outside of the housing (3) and is connected to a first motor (7). Clamping mechanisms (8) are provided on both sides of the inner cavity of the housing (3). A second motor (9) is fixedly connected to the top of the housing (3). A placement plate (10) is connected to the output end of the second motor (9).

2. The clamping device for grinding and processing myopia control lenses according to claim 1, characterized in that: The clamping mechanism (8) includes a square block (81) disposed on both sides of the inner cavity of the housing (3). Two first protrusions (82) are fixedly connected to one side of the square block (81). A connecting block (83) is rotatably connected to the bottom of the first protrusion (82). A second protrusion (84) is rotatably connected to the other end of the connecting block (83). One side of the second protrusion (84) is fixedly connected to a threaded block (6). Limiting blocks (85) are fixedly connected to both sides of the square block (81). One side of the limiting block (85) extends through to the outside of the housing (3) and is fixedly connected to a long plate (86). A moving block (87) is fixedly connected to the opposite side of the two long plates (86). A clamping plate (88) is fixedly connected to one side of the moving block (87).

3. The clamping device for grinding and processing myopia control lenses according to claim 1, characterized in that: The surface of the first motor (7) is fitted with a mounting base (11), and the top of the mounting base (11) is threaded with a bolt. The fixing plate (4) is detachably connected to the first motor (7) by bolts.

4. The clamping device for grinding and processing myopia control lenses according to claim 2, characterized in that: A protective block (12) is fixedly connected to one side of the clamp (88), and the protective block (12) is arc-shaped.

5. The clamping device for grinding and processing myopia control lenses according to claim 1, characterized in that: The bottom of the base plate (1) is fixedly connected to four corners of the base plate (1), and the four support blocks (13) are arranged symmetrically.

6. The clamping device for grinding and processing myopia control lenses according to claim 1, characterized in that: The bottom of the inner cavity of the housing (3) is provided with sliding grooves (14) on both sides. A slider (15) is slidably connected to the inner cavity of the sliding groove (14). The top of the slider (15) is fixedly connected to the threaded block (6).

7. The clamping device for grinding and processing myopia control lenses according to claim 2, characterized in that: Two guide rods (16) are provided through one side of the square block (81). One end of the guide rod (16) is fixedly connected to the housing (3), and the other end of the guide rod (16) is fixedly connected to a limit plate (17).

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