Optical lens convex surface polishing die

Abstract

The utility model discloses a convex surface polishing die for optical lenses, and particularly relates to the technical field of optical lenses, which comprises a fixed frame seat and a polishing film seat positioned at the upper end of the fixed frame seat, a cotton cushion is arranged at the upper end of the polishing film seat, and a detachable polishing film is connected to the upper end surface of the cotton cushion. A flexible elastic supporting structure is arranged between the cotton cushion and the polishing film base and used for providing elastic buffering and supporting for the cotton cushion. The flexible elastic supporting structure is arranged, so that a dynamic supporting system is formed between the cotton cushion and the polishing film base, during polishing, gas fluidity and the uniform pressure transmission characteristic are utilized, instant response can be made to microscopic fluctuation of the surface of a lens and polishing pressure changes, supporting force is accurately matched, and compared with a traditional spring, response is faster, adjustment is finer, and the polishing effect is better. And meanwhile, the problems of stress concentration and unbalance loading failure caused by non-uniform local stress of the spring are avoided, and uniform distribution of pressure on the surfaces of the polishing diaphragm and the lens is ensured.

Description

Technical Field

[0001] This utility model relates to the field of optical lens technology, specifically to a polishing mold for the convex surface of an optical lens. Background Technology

[0002] Optical glass lenses are made by mixing high-purity oxides of silicon, boron, sodium, potassium, zinc, lead, magnesium, calcium, barium, etc., according to a specific formula, melting them at high temperature in a platinum crucible, stirring them evenly with ultrasound to remove air bubbles, and then slowly cooling them for a long time to prevent internal stress from forming in the glass block. After cooling, the glass block must be measured by optical instruments to check whether its purity, transparency, uniformity, refractive index, and dispersion rate meet the specifications. In the processing of optical lenses, the convex polishing mold is the core element to ensure the performance of the lens. The surface precision of the lens directly determines the optical performance. Even the slightest unevenness will cause light to diffuse reflection and refraction disorder, resulting in image distortion. When the convex polishing mold is in contact with the convex surface of the lens, it can precisely remove surface defects. With the help of special polishing fluid, through the synergistic effect of chemical and physical processes, the surface precision of the lens can be improved to the nanometer level, ensuring accurate refraction and transmission of light and meeting the stringent requirements of high-end optical equipment such as microscopes and telescopes.

[0003] Application No. 201922432116.3 discloses a polishing mold for the convex surface of an optical lens. "A cotton pad is installed at the bottom of the polishing film, and a telescopic cylinder is fixed to the bottom of the cotton pad. The end of the telescopic cylinder away from the cotton pad is connected to the polishing film seat, and a first spring is sleeved on the outer wall of the telescopic cylinder. One end of the first spring is connected to the cotton pad, and the other end of the first spring is connected to the polishing film seat. A second spring is installed between the cotton pad and the polishing film seat." This design achieves dynamic adhesion between the polishing film and the lens surface by setting an elastic buffer structure composed of a cotton pad, a telescopic cylinder, a first spring, and a second spring between the polishing film and the polishing film seat. This adaptively compensates for the spacing changes caused by the reduction in lens thickness during the polishing process. However, in long-term, high-frequency polishing operations, the first spring and the second spring... The spring is constantly in a state of cyclic deformation of compression and rebound. The stress fluctuations caused by the polishing pressure and the irregularity of the lens surface will cause microscopic lattice dislocations and dislocation movements inside the spring metal material. As the usage time increases, this microscopic damage accumulates, leading to spring fatigue, a decrease in elastic coefficient and a reduction in deformation. When the spring elasticity weakens, it cannot respond to subtle changes in lens thickness in time, causing gaps to form between the polishing film and the lens surface. This not only causes uneven distribution of polishing pressure, resulting in local over-polishing or under-polishing of the lens surface, affecting the lens surface accuracy and surface roughness, but also causes vibration of the polishing film, exacerbating the disordered distribution of polishing fluid, further reducing polishing efficiency and quality stability. In severe cases, it may even cause scratches on the lens surface, significantly increasing the product defect rate. Utility Model Content

[0004] The purpose of this invention is to provide a polishing mold for the convex surface of optical lenses to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an optical lens convex surface polishing mold, comprising a fixed frame and a polishing film seat located at the upper end of the fixed frame. The upper end of the polishing film seat is provided with a cotton pad, and the upper end face of the cotton pad is connected to a detachable polishing film. The lower end face of the polishing film seat is connected to a connecting plate, and the connecting plate is rotatably connected to the fixed frame via a bearing, so that the polishing film seat can rotate freely around the central axis of the fixed frame. The lower end face of the fixed frame is provided with a through hole for the output shaft of the drive motor to pass through and extend into the interior of the fixed frame.

[0006] Preferably, the fixed frame is provided with a clamping assembly for holding and fixing the output shaft of the drive motor. The clamping assembly includes a threaded rod threaded to the fixed frame, one end of the threaded rod is connected to a clamping ring through a bearing, and the other end of the threaded rod passes through and extends to the outside of the fixed frame and is connected to a handle.

[0007] Preferably, the clamping assembly further includes a connecting rod connected to the lower end face of the clamping ring, the lower end face of the connecting rod is connected to a slider, and the inner surface wall of the fixed frame is provided with a sliding groove for cooperating with the slider.

[0008] Preferably, the interior of the slide groove is provided with an auxiliary slider assembly, the auxiliary slider assembly including a gear movably connected to the outer wall of the slider, a crossbar plate fixedly connected to the lower end of the gear and located on the inner wall of the slide groove, and a plurality of tooth blocks that mesh with the gear being uniformly fixedly connected to the upper end surface of the crossbar plate.

[0009] Specifically, in use, firstly, the output shaft of the drive motor (model YSP132S1-25) is inserted into the fixed frame through the through hole, and then inserted into the pre-reserved insertion hole at the bottom of the connecting plate to complete the initial positioning of the power input end. Then, the handle is held and turned to drive the threaded rod to rotate, causing the clamping ring to move axially towards the output shaft. The inner arc surface of the clamping ring gradually grips the outer circumference of the output shaft. At this time, the slider connected by the connecting rod moves in the slide groove to ensure the straightness of the clamping ring's translational trajectory. At the same time, the gear rolls on the crossbar plate with the toothed blocks to provide stable motion guidance, ensuring the smoothness and straightness of the slider's movement. This allows the clamping ring to grip the output shaft evenly and stably, avoiding uneven gripping or loose connection caused by motion deviation. The rotation of the output shaft drives the connecting plate to rotate, which in turn drives the polishing film seat to rotate, thereby allowing the polishing film to polish the optical lens.

[0010] Preferably, a flexible elastic support structure is provided between the cotton pad and the polishing film seat to provide elastic cushioning and support for the cotton pad, so that the cotton pad can adaptively conform to the lens surface during the polishing process.

[0011] Preferably, the flexible elastic support structure includes a hollow column embedded in a pre-reserved slot in the polishing film seat, an air bladder connected inside the hollow column, a movable column connected to the upper end of the air bladder, and the upper end of the movable column penetrating the hollow column and connecting to the cotton pad.

[0012] Preferably, the flexible elastic support structure further includes a fixing seat located at the lower end of the hollow column and on the inner wall of the polishing film seat. The inner wall of the fixing seat has an air cavity, and a piston is provided inside the air cavity. A horizontal tube is embedded in the upper end face of the middle position of the fixing seat, and a conveying pipe is connected through the outer wall of the horizontal tube.

[0013] Preferably, the end of the delivery pipe away from the horizontal tube passes through the hollow column and is inserted into the interior of the airbag, and the connecting short tubes at both ends of the horizontal tube are connected to the air cavity.

[0014] Through the above technical solution:

[0015] During polishing, the cotton pad bears the pressure on the lens surface, causing the movable column to descend. This causes the airbag to undergo elastic deformation, and the gas enters the air chamber in the fixed seat through the delivery pipe and the horizontal pipe, pushing the piston upward. This operation creates a dynamic support system between the cotton pad and the polishing film seat. Utilizing the fluidity and uniform pressure transmission characteristics of the gas, it quickly responds to surface undulations and pressure changes, precisely adjusting the support force. Compared to traditional springs, it responds faster and adjusts more accurately, avoiding stress concentration and off-center load failure, ensuring uniform pressure between the polishing film and the lens. Furthermore, after the polishing pressure is released, the airbag resets, and the gas flows back, buffering the impact of the equipment and reducing lens scratches. Simultaneously, the structure can sense changes in lens thickness and automatically adjust the displacement of the airbag and the piston, stabilizing the polishing gap and pressure, eliminating over-polishing or under-polishing, and significantly improving lens precision and smoothness.

[0016] Preferably, the flexible elastic support structure is provided with auxiliary components to enhance the stability and response accuracy of the flexible elastic support structure and to work in synergy with the flexible elastic support structure.

[0017] Preferably, the auxiliary component includes a vertical rod connected to the upper end face of the piston. The upper end face of the vertical rod passes through the fixing seat and the polishing film seat and extends to the upper end of the polishing film seat where a hinge seat is hinged. The upper end face of the hinge seat is connected to a connecting block, and the end of the connecting block away from the hinge seat is connected to a cotton pad.

[0018] Through the above technical solution:

[0019] As the piston rises, the vertical rod moves upward, causing the connecting block to simultaneously push against the cotton pad via the hinge seat, creating an upward supporting force. This force, combined with the elastic deformation force of the airbag, maintains the dynamic fit between the polishing film and the lens surface. When the piston descends, the vertical rod causes the connecting block to fall back simultaneously. The flexible hinge structure of the hinge seat allows the connecting block to conform to the movement trajectory of the cotton pad at an adaptive angle, avoiding movement jamming or stress abrupt changes caused by rigid connections. This operation, together with the gas compression support of the airbag, forms a dual elastic buffer system, providing a lower limit of rigid support and preventing... In cases where excessive compression of the airbag leads to a sudden drop in support force, flexible pressure adjustment fills the response blind spot of the mechanical structure. The two complement each other, ensuring that the cotton pad maintains stable displacement accuracy throughout the polishing process. This ensures that the polishing diaphragm adheres to the convex surface of the lens with constant pressure. This composite support mode of mechanical linkage and gas flexibility not only controls polishing pressure fluctuations to a very small range, but also effectively disperses local stress concentration at the edge of the polishing diaphragm through the dynamic lifting of the cotton pad by the connecting block. This reduces the risk of polishing quality failure caused by the failure of a single elastic structure and significantly enhances the adaptability and stability of the polishing mold in complex curved surface polishing scenarios.

[0020] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0021] 1. By setting up a flexible and elastic support structure, a dynamic support system is formed between the cotton pad and the polishing film seat. During polishing, the gas flow and uniform pressure transmission characteristics can be used to respond instantly to the micro-undulations on the lens surface and changes in polishing pressure, and the support force can be precisely matched. Compared with traditional springs, the response is faster and the adjustment is more precise. At the same time, it also avoids the stress concentration and off-center load failure problems caused by uneven local force of springs, ensuring that the pressure on the polishing film and lens surface is evenly distributed. In addition, when the polishing pressure is released, the airbag quickly resets and the gas flows back, effectively buffering the impact of equipment start-up and shutdown, reducing the risk of lens scratches. Moreover, this structure can sense changes in lens thickness in real time and automatically adjust the displacement of the airbag and piston to maintain a stable polishing gap and pressure, eliminate local over-polishing or under-polishing, and significantly improve the surface accuracy and smoothness of the lens.

[0022] 2. By setting auxiliary components, a dual elastic buffer system is formed with the flexible elastic support structure. The two work together to maintain the dynamic adhesion between the polishing diaphragm and the lens surface. The mechanical linkage structure provides a rigid support lower limit, and the gas flexible support fills the response blind zone through pressure regulation. The complementary cooperation ensures that the cotton pad maintains stable displacement accuracy, ensuring that the polishing diaphragm adheres to the convex surface of the lens with constant pressure. At the same time, the connecting block disperses the local stress concentration at the edge of the polishing diaphragm by dynamically lifting, reducing the quality risk of failure of the single elastic structure, significantly enhancing the adaptability and stability of the polishing mold in polishing complex curved surfaces, and effectively ensuring the uniformity of polishing pressure and the adhesion accuracy. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a cross-sectional view of the present invention;

[0026] Figure 3 This is a schematic diagram of the flexible elastic support structure of this utility model;

[0027] Figure 4 This is a cross-sectional schematic diagram of the flexible elastic support structure of this utility model;

[0028] Figure 5 This is an enlarged schematic diagram of the connection between the airbag and the hollow column of this utility model;

[0029] Figure 6 This is an enlarged schematic diagram of the connection between the threaded rod and the clamping ring of this utility model;

[0030] Figure 7 This is a schematic diagram of the moving block and auxiliary slider assembly of this utility model;

[0031] Figure 8 This is an enlarged schematic diagram of the auxiliary slider assembly of this utility model.

[0032] Explanation of reference numerals in the attached figures:

[0033] 1. Fixed frame; 2. Polishing film seat; 3. Cotton pad; 4. Polishing film; 5. Connecting plate; 6. Flexible elastic support structure; 61. Hollow column; 62. Airbag; 63. Movable column; 64. Fixed seat; 65. Air chamber; 66. Piston; 67. Horizontal tube; 68. Conveying pipe; 7. Auxiliary components; 71. Vertical rod; 72. Hinge seat; 73. Connecting block; 8. Clamping assembly; 81. Threaded rod; 82. Clamping ring; 83. Handle; 84. Connecting rod; 85. Slider; 86. Slide groove; 9. Perforation; 10. Auxiliary slider assembly; 101. Gear; 102. Horizontal bar; 103. Tooth block. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0035] This utility model provides, for example Figure 1 , Figure 2 and Figure 6 The optical lens convex surface polishing mold shown includes:

[0036] The fixed frame 1 and the polishing film seat 2 located at the upper end of the fixed frame 1 are provided with a cotton pad 3 at the upper end of the polishing film seat 2. A detachable polishing film 4 is connected to the upper end face of the cotton pad 3. A connecting plate 5 is connected to the lower end face of the polishing film seat 2. The connecting plate 5 is rotatably connected to the fixed frame 1 through a bearing, so that the polishing film seat 2 can rotate freely around the central axis of the fixed frame 1. A through hole 9 is opened on the lower end face of the fixed frame 1 for the output shaft of the drive motor to pass through and extend into the interior of the fixed frame 1.

[0037] Further, see Figure 2 , Figures 6-8 As shown, the fixed frame 1 is provided with a clamping assembly 8 for clamping and fixing the output shaft of the drive motor. The clamping assembly 8 includes a threaded rod 81 threadedly connected to the fixed frame 1. One end of the threaded rod 81 is connected to a clamping ring 82 through a bearing, and the other end of the threaded rod 81 passes through and extends to the outside of the fixed frame 1 and is connected to a handle 83.

[0038] The clamping assembly 8 also includes a connecting rod 84 connected to the lower end face of the clamping ring 82. A slider 85 is connected to the lower end face of the connecting rod 84. A groove 86 is provided on the inner surface wall of the fixed frame 1 to cooperate with the slider 85.

[0039] The slide groove 86 is provided with an auxiliary slider assembly 10. The auxiliary slider assembly 10 includes a gear 101 movably connected to the outer wall of the slider 85. A horizontal bar 102 is fixedly connected to the lower end of the gear 101 and located on the inner wall of the slide groove 86. A plurality of tooth blocks 103 that mesh with the gear 101 are evenly fixedly connected to the upper end face of the horizontal bar 102.

[0040] Specifically, in use, firstly, the output shaft of the drive motor (model YSP132S1-25) is inserted into the fixed frame 1 through the through hole 9, and then inserted into the pre-reserved insertion hole at the bottom of the connecting plate 5 to complete the initial positioning of the power input end. Then, hold and turn the handle 83 to drive the threaded rod 81 to rotate, causing the clamping ring 82 to move axially towards the output shaft. The inner arc surface of the clamping ring 82 gradually clamps the outer circumference of the output shaft. At this time, the slider 85 connected by the connecting rod 84 moves in the slide groove 86 to ensure the straightness of the translation trajectory of the clamping ring 82. At the same time, the gear 101 rolls on the cross plate 102 with toothed blocks 103 to provide stable motion guidance, ensuring the smoothness and straightness of the slider 85 when it moves, so that the clamping ring 82 can clamp the output shaft evenly and stably, avoiding uneven clamping or loose connection caused by motion deviation. The rotation of the output shaft drives the connecting plate 5 to rotate, which in turn drives the polishing film seat 2 to rotate, thereby enabling the polishing film 4 to polish the optical lens.

[0041] This utility model provides, for example Figures 1-5 The optical lens convex surface polishing mold shown has a flexible elastic support structure 6 between the cotton pad 3 and the polishing film seat 2, which provides elastic buffering and support for the cotton pad 3, so that the cotton pad 3 can adaptively conform to the lens surface during the polishing process.

[0042] The flexible elastic support structure 6 includes a hollow column 61 embedded in a pre-reserved slot in the polishing film seat 2. An air bladder 62 is connected inside the hollow column 61. A movable column 63 is connected to the upper end of the air bladder 62. The upper end of the movable column 63 passes through the hollow column 61 and is connected to the cotton pad 3.

[0043] The flexible elastic support structure 6 also includes a fixing seat 64 located at the lower end of the hollow column 61 and on the inner wall of the polishing film seat 2. An air cavity 65 is opened on the inner wall of the fixing seat 64, and a piston 66 is provided inside the air cavity 65. A horizontal tube 67 is embedded in the upper end face of the middle position of the fixing seat 64, and a delivery pipe 68 is connected through the outer wall of the horizontal tube 67.

[0044] The end of the delivery pipe 68 away from the horizontal pipe 67 passes through the hollow column 61 and is inserted into the interior of the airbag 62. The connecting short pipes at both ends of the horizontal pipe 67 are connected to the air chamber 65.

[0045] Through the above technical solution:

[0046] During polishing, the cotton pad 3 bears the pressure on the lens surface, causing the movable column 63 to descend, which in turn causes the airbag 62 to undergo elastic deformation. The gas enters the air chamber 65 of the fixed seat 64 through the delivery pipe 68 and the horizontal pipe 67, pushing the piston 66 upward. This operation allows the cotton pad 3 and the polishing film seat 2 to form a dynamic support system. Utilizing the fluidity and uniform pressure transmission characteristics of the gas, it can quickly respond to the undulations and pressure changes on the lens surface and accurately adjust the support force. Compared with traditional springs, it responds faster and adjusts more accurately. It can also avoid stress concentration and off-center load failure, ensuring uniform pressure between the polishing film 4 and the lens. Secondly, after the polishing pressure is released, the airbag 62 resets and the gas flows back, buffering the impact of the equipment and reducing scratches on the lens. At the same time, the structure can sense changes in lens thickness and automatically adjust the displacement of the airbag 62 and the piston 66 to stabilize the polishing gap and pressure, eliminate over-polishing or under-polishing, and significantly improve the lens accuracy and smoothness.

[0047] This utility model provides, for example Figures 2-4 The optical lens convex surface polishing mold shown has an auxiliary component 7 on the flexible elastic support structure 6, which is used to enhance the stability and response accuracy of the flexible elastic support structure 6 and works in synergy with the flexible elastic support structure 6.

[0048] The auxiliary component 7 includes a vertical rod 71 connected to the upper end face of the piston 66. The upper end face of the vertical rod 71 passes through the fixed seat 64 and the polishing film seat 2 and extends to the upper end of the polishing film seat 2 where a hinge seat 72 is hinged. A connecting block 73 is connected to the upper end face of the hinge seat 72. The end of the connecting block 73 away from the hinge seat 72 is connected to the cotton pad 3.

[0049] Through the above technical solution:

[0050] As piston 66 rises, vertical rod 71 moves upward, driving connecting block 73 to simultaneously push cotton pad 3 upward via hinge seat 72, forming an upward supporting force. This force, combined with the elastic deformation force of airbag 62, maintains the dynamic fit between polishing film 4 and lens surface. When piston 66 descends, vertical rod 71 drives connecting block 73 to simultaneously fall back. Through the flexible hinge structure of hinge seat 72, connecting block 73 adapts to the movement trajectory of cotton pad 3 at an adaptive angle, avoiding movement jamming or stress abrupt changes caused by rigid connection. This operation, together with the gas compression support of airbag 62, forms a dual elastic buffer system, providing a lower limit of rigid support and preventing gas... In cases where excessive compression of the bladder 62 leads to a sudden drop in support force, flexible pressure adjustment fills the response blind spot of the mechanical structure. The two complement each other, ensuring that the cotton pad 3 maintains stable displacement accuracy throughout the polishing process. This ensures that the polishing diaphragm 4 adheres to the convex surface of the lens with constant pressure. This composite support mode of mechanical linkage and gas flexibility not only controls the polishing pressure fluctuation within a very small range, but also effectively disperses the local stress concentration at the edge of the polishing diaphragm 4 through the dynamic lifting of the cotton pad 3 by the connecting block 73. This reduces the risk of polishing quality failure caused by the failure of a single elastic structure and significantly enhances the adaptability and stability of the polishing mold in complex curved surface polishing scenarios.

[0051] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A convex polishing mold for optical lenses, characterized in that, The utility model relates to a lens polishing device, including: Fixed frame seat (1), the polishing film seat (2) of fixed frame seat (1) upper end, the upper end of polishing film seat (2) is equipped with cotton pad (3), the upper end surface of cotton pad (3) is connected with detachable polishing film piece (4), Cotton pad (3) and polishing film seat (2) between be equipped with flexible elastic support structure (6), for cotton pad (3) provide elastic buffer and support, make cotton pad (3) can adapt to the surface of lens in polishing process, the flexible elastic support structure (6) on be equipped with auxiliary assembly (7), The flexible elastic support structure (6) includes the hollow column (61) embedded in the reserved slot of polishing film seat (2), the inside of hollow column (61) is connected with air bag (62), the upper end surface of air bag (62) is connected with movable column (63), the upper end surface of movable column (63) passes through hollow column (61) and is connected with cotton pad (3).

2. A convex polishing mold for optical lenses according to claim 1, characterized in that: The flexible elastic support structure (6) further includes the fixed seat (64) of hollow column (61) lower end and located in polishing film seat (2) inner wall, the inner wall of fixed seat (64) is equipped with air cavity (65), the inside of air cavity (65) is equipped with piston (66), the intermediate position upper end surface of fixed seat (64) is embedded with cross pipe (67), the outer wall of cross pipe (67) is connected with delivery pipe (68) through.

3. A convex polishing mold for optical lenses according to claim 2, characterized in that: The end of delivery pipe (68) away from cross pipe (67) passes through hollow column (61) and inserts the inside of air bag (62), the both ends of the connecting short pipe of cross pipe (67) are connected with air cavity (65).

4. A convex polishing mold for optical lenses according to claim 3, characterized in that: The auxiliary assembly (7) includes the vertical rod (71) connected to the upper end surface of piston (66), the upper end surface of vertical rod (71) passes through fixed seat (64) and polishing film seat (2) and extends to the upper end of polishing film seat (2) and is hinged with hinged seat (72), the upper end surface of hinged seat (72) is connected with connecting block (73), the end of connecting block (73) away from hinged seat (72) is connected with cotton pad (3).

5. A convex polishing mold for optical lenses according to claim 1, characterized in that: The inside of fixed frame seat (1) is equipped with the clamping assembly (8) for holding fixed drive motor output shaft, the clamping assembly (8) includes the threaded rod (81) threaded connection on fixed frame seat (1), one end of threaded rod (81) is connected with the clamping ring (82) through bearing, and the other end of threaded rod (81) is connected with handle (83) through and extends to the outside of fixed frame seat (1).

6. A convex polishing mold for optical lenses according to claim 5, characterized in that: The clamping assembly (8) further includes the connecting rod (84) connected to the lower end surface of clamping ring (82), the lower end surface of connecting rod (84) is connected with sliding block (85), the inner wall of fixed frame seat (1) is equipped with the sliding slot (86) used in cooperation with sliding block (85).

7. A convex polishing mold for optical lenses according to claim 6, characterized in that: The inside of the chute (86) is provided with an auxiliary sliding block assembly (10), which comprises a gear (101) movably connected to the outer wall of the sliding block (85), the lower end of the gear (101) is fixedly connected with a horizontal batten (102) located on the inner wall of the chute (86), and the upper end surface of the horizontal batten (102) is uniformly fixedly connected with a plurality of tooth blocks (103) engaged with the gear (101).

8. A convex polishing mold for optical lenses according to claim 1, characterized in that: The lower end surface of the polishing film seat (2) is connected with a connecting disc (5), the connecting disc (5) is rotatably connected with the fixed frame seat (1) through a bearing, so that the polishing film seat (2) can freely rotate around the central axis of the fixed frame seat (1), and the lower end surface of the fixed frame seat (1) is provided with a through hole (9) for the output shaft of the driving motor to pass through and extend into the inside of the fixed frame seat (1).

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