Optical lens polishing equipment

By combining a lead screw drive component and a pressure adjusting rod, the corrosion problem caused by increased pressure between the lens and the grinding disc is solved, achieving a high-efficiency, corrosion-free lens grinding effect and adapting to the processing needs of lenses of various shapes.

CN120839623APending Publication Date: 2025-10-28SHANGHAI YANMU OPTOELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202511230934.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-30
Publication Date
2025-10-28

AI Technical Summary

Technical Problem

Existing technologies that use adhesive bonding to enhance the adhesion between the lens and the grinding disc can easily cause corrosion and damage to the lens surface, and are cumbersome to operate.

Method used

The pressure regulating device consists of a screw drive component, a lifting plate, a pressure regulating rod, a transition support assembly, a composite support ring, and a metal ball. The screw drive lift plate and pressure regulating rod apply pressure to the lens blank, and the rolling of the metal ball avoids interfering with the rotation and grinding of the lens blank.

Benefits of technology

It improves the polishing quality and efficiency of lens blanks, ensures that the lens surface is not corroded, and expands the application range of the device to meet the polishing needs of lenses of different shapes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses optical lens polishing equipment, and relates to the field of lens polishing, the optical lens polishing equipment comprises an annular polishing machine, the annular polishing machine comprises an annular polishing machine platform, a polishing disc, a limiting wheel support assembly and a correction ring component, and the limiting wheel support assembly and the polishing disc are both installed at the top of the annular polishing machine platform; and the correcting ring part is mounted at the top of the grinding disc and is in friction transmission with a roller in the limiting wheel bracket assembly. A pressure adjusting device is composed of a lead screw transmission part, a lifting plate, a pressure adjusting rod piece, a transition support assembly, a composite supporting ring and a metal ball, and the pressure adjusting device is used in cooperation with a ring polishing machine platform, a polishing disc, a limiting wheel support assembly and a correcting ring part for polishing subsequently; when the lead screw transmission part is used for transmitting the lifting plate and the pressure adjusting rod piece to pressurize a lens blank, the self-rotation grinding operation of the lens blank under the transmission of the correction ring part and the limiting wheel support assembly is not interfered by using the rolling abdication of a corresponding structure.
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Description

Technical Field

[0001] This invention relates to the field of lens polishing, and more particularly to optical lens polishing equipment. Background Technology

[0002] As a high-precision optical processing device for planar surfaces, the ring polisher mainly consists of a rotating grinding disc, multiple limiting wheel supports above the grinding disc, and a rotating correction ring. In recent years, with technological advancements, ring polishers have been able to stably process large-diameter optical components and achieve a surface accuracy of 1 / 6λ. Therefore, they are widely used in aerospace, research institutes, and other fields. In practical applications, they can also be used for the fine grinding and polishing of planar, cylindrical, and spherical surfaces of various materials such as glass, crystals, and ceramics. Furthermore, during further use, the curvature of the asphalt disc can be adjusted through the correction disc. The ring polisher can uniformly grind irregularly shaped components and achieve a high surface accuracy of λ / 8 to λ / 40, making it widely applicable.

[0003] Currently, in the actual processing of ring polishing machines, when it is necessary to enhance the clamping force between the lens and the polishing disc, the existing technology mostly uses adhesive to set counterweight components on the lens being processed. Although this can increase the clamping force, it is cumbersome to operate and the adhesive layer is also prone to causing corrosion and damage to the lens surface. Summary of the Invention

[0004] This application proposes an optical lens polishing device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this application adopts the following technical solution: an optical lens polishing device, including a ring polisher, the ring polisher including a ring polisher platform, a grinding disc, a limiting wheel bracket assembly, and a correction ring component. The limiting wheel bracket assembly and the grinding disc are both installed on the top of the ring polisher platform. The correction ring component is installed on the top of the grinding disc and is driven by friction with the rollers inside the limiting wheel bracket assembly, so that the limiting wheel bracket assembly can drive the correction ring component to rotate after the grinding disc rotates. The correction ring component has a material-bearing space inside for placing lens blanks. The top of the limiting wheel bracket assembly is provided with a composite support ring and a transition bracket assembly. The composite support ring is installed on the top of the limiting wheel bracket assembly and fixed to the side structure of the transition bracket assembly away from the center of the grinding disc. The transition bracket assembly has a screw drive structure inside, and the output structure of the screw drive structure is connected to a pressure component that applies pressure to the lens blank in the material-bearing space. The bottom structure of the pressure component is rolledly connected to the top of the lens blank.

[0006] The pressure regulating device, composed of a screw drive component, lifting plate, pressure regulating rod, transition support assembly, composite support ring, and metal ball, works in conjunction with the ring polishing machine platform, grinding disc, limit wheel support assembly, and correction ring component for grinding. This allows the screw drive component to power the lifting plate and pressure regulating rod to apply pressure to the lens blank, while the corresponding structure's rolling clearance ensures that the lens blank's rotational grinding operation under the transmission of the correction ring component and limit wheel support assembly is not interfered with. This significantly improves the grinding quality of the lens blank by the grinding disc while ensuring high-efficiency grinding results.

[0007] Preferably, the lead screw transmission structure includes a lead screw transmission component and a lifting plate. The lead screw transmission component includes a lead screw, a brake servo motor, and a nut. One end of the lead screw is connected to the output end of the brake servo motor. The inner and outer rings of the nut are threaded to the surface of the lead screw and fixedly fitted on the inner side of the middle part of the lifting plate, respectively. A support seat is fixed between the housing surface of the brake servo motor and the transition bracket assembly.

[0008] Preferably, the pressurizing assembly consists of a pressure regulating rod, the top of which is fitted inside the lifting plate, and the bottom of which is fitted with a metal ball that can roll into contact with the lens blank in the material receiving space.

[0009] Preferably, the interior of both sides of the lifting plate is provided with adjustment grooves, and the number of pressure adjusting rods is not less than two and they are evenly distributed and respectively fitted into the two adjustment grooves.

[0010] Preferably, the pressure regulating rod includes a composite rod body, a limiting nut, and a positioning plate. One end of the composite rod body is engaged in a corresponding sliding groove. The positioning plate is fixedly sleeved on the top outer side of the composite rod body and located at the bottom of the lifting plate. The top surface of the composite rod body is provided with an external thread and is threadedly connected to the positioning plate through the external thread. The positioning plate is located on the top of the lifting plate and cooperates with the limiting nut to clamp and limit the composite rod body and the lifting plate.

[0011] Preferably, the composite rod body includes a T-shaped hollow cylinder, inside which a T-shaped pressure rod, a return spring, and a pressure sensor are respectively arranged. The T-shaped pressure rod is snapped into the inside of the T-shaped hollow cylinder, and one end of the T-shaped pressure rod penetrates through the T-shaped hollow cylinder and extends to the bottom outside of the T-shaped hollow cylinder. A semi-open spherical groove that can engage with a metal ball is opened in the bottom end of the T-shaped pressure rod. The two ends of the return spring are respectively fixed to the other end surface of the T-shaped pressure rod and the inner bottom of the T-shaped hollow cylinder. The pressure sensor is fixedly sleeved on the top inner side of the T-shaped hollow cylinder and can make pressing contact with the T-shaped pressure rod.

[0012] Preferably, the top of the composite support ring is provided with an annular guide groove and a first screw hole. The transition support assembly includes a main support, an arc-shaped slide rail, and a transition sleeve plate. The main support is installed between the arc-shaped slide rail and the transition sleeve plate, and the bottom of the arc-shaped slide rail is slidably installed in the annular guide groove. The inner ring structure of the arc-shaped slide rail is fixed with a mounting plate. The mounting plate and the first screw hole can be detachably installed by screws. The inner side of the transition sleeve plate can be movably connected with the lifting plate and the pressure adjusting rod.

[0013] Preferably, the front end of the main bracket is fixed to the top of the arc-shaped slide rail, and the inner side of the rear end of the main bracket is fitted with the top of the transition sleeve plate through a bearing. A second screw hole is provided on the top of the rear end of the main bracket, and a limiting curved plate is installed on the top of the transition sleeve plate. One end of the limiting curved plate is provided with a clearance hole that can be aligned with the second screw hole, so that the limiting curved plate and the main bracket can be detachably installed and fixed by means of screws fitting into the clearance hole and then threadedly connected to the second screw hole.

[0014] Preferably, the number of the limiting wheel bracket assembly and the straightening ring component is not less than two, and they are equidistantly arranged along the circumference of the grinding disc.

[0015] Preferably, the top of the composite support ring has several first screw holes along its circumference, and the transition support assembly can be used to rotate between two adjacent limit wheel support assemblies through the arc-shaped slide rail and the annular guide groove inside the composite support ring.

[0016] Preferably, the lens blank supported on the top of the grinding disc is formed in a circular or square shape.

[0017] In summary, the present invention has the following beneficial effects: 1. The pressure regulating device, consisting of a lead screw drive component, lifting plate, pressure regulating rod, transition support assembly, composite support ring, and metal ball, is used in conjunction with a ring polishing machine platform, grinding disc, limit wheel support assembly, and correction ring component for grinding. This device allows the lead screw drive component to power the lifting plate and pressure regulating rod to apply pressure to the lens blank, while simultaneously utilizing the rolling clearance of the corresponding structure to avoid interfering with the lens blank's rotational grinding operation under the transmission of the correction ring component and limit wheel support assembly. This significantly improves the grinding quality of the lens blank by the grinding disc while ensuring high-efficiency grinding.

[0018] 2. After the pressure regulating device is increased to multiple pressure regulating rods, the lifting plate can be driven by the screw drive component. During the process of multiple pressure regulating rods pressing down on the lens blank, the pressure-bearing area of ​​the lens blank can be increased by multiple pressure regulating rods. In this way, the clamping force between the bottom of the lens blank and the grinding disc can be increased evenly by the downward pressing method at multiple positions, thereby further improving the grinding effect.

[0019] 3. The pressure regulating rod in the pressure regulating device, after being assembled from a composite rod, a limit nut, and a positioning plate, can be modularly disassembled and used with the lifting plate during continuous use, optimizing the subsequent maintenance and replacement of the pressure regulating rod.

[0020] 4. The pressure regulating device contains multiple pressure regulating rods, and the transition support assembly consists of a main support, an arc-shaped slide rail, and a transition sleeve plate. For non-circular lens blanks, multiple pressure regulating rods can surround the lens blank and form an isolation space between the lens blank and the inner wall of the correction ring component. Similarly, during the grinding process of the grinding disc rotating to grind the lens blank, the screw drive component, lifting plate, transition sleeve plate, and multiple pressure regulating rods rotate synchronously with the lens blank, thereby meeting the grinding limit requirements under different conditions and expanding the application range of the overall device. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is a three-dimensional schematic diagram of the lead screw transmission component of the present invention; Figure 4 This is an enlarged schematic diagram of the transition support assembly of the present invention; Figure 5 This is the present invention. Figure 4 Enlarged view of point A in the middle; Figure 6 This is a three-dimensional schematic diagram of the composite rod of the present invention; Figure 7 This is a cross-sectional schematic diagram of the composite rod of the present invention; Figure 8 This is a schematic diagram illustrating the processing of the square lens blank of the present invention.

[0022] Explanation of reference numerals in the attached drawings: 1. Ring polishing machine platform; 2. Grinding disc; 3. Limiting wheel bracket assembly; 4. Correction ring component; 5. Lens blank; 6. Composite support ring; 7. Transition bracket assembly; 71. Main bracket; 72. Arc-shaped slide rail; 73. Transition sleeve plate; 8. Screw drive component; 81. Screw; 82. Brake servo motor; 83. Nut; 9. Lifting plate; 10. Pressure adjusting rod; 101. Composite rod body; 1011. T-shaped hollow cylinder; 1012. T-shaped pressure rod; 1013. Return spring; 1014. Pressure sensor; 102. Limiting nut; 103. Positioning plate; 11. Adjusting groove; 12. Metal ball; 13. Limiting curved plate. Detailed Implementation

[0023] like Figure 1-Figure 4An optical lens polishing device includes a ring polisher, which comprises a ring polisher platform 1, a grinding disc 2, a limiting wheel bracket assembly 3, and a correcting ring component 4. The limiting wheel bracket assembly 3 and the grinding disc 2 are both mounted on the top of the ring polisher platform 1. The correcting ring component 4 is mounted on the top of the grinding disc 2 and is driven by friction with the rollers inside the limiting wheel bracket assembly 3, so that the limiting wheel bracket assembly 3 can drive the correcting ring component 4 to rotate after the grinding disc 2 rotates. The correcting ring component 4 has a material-bearing space inside for placing lens blanks 5. The top of the limiting wheel bracket assembly 3 is provided with a composite support ring 6 and a transition support assembly 7. The composite support ring 6 is mounted on the top of the limiting wheel bracket assembly 3 and is fixed to the side structure of the transition support assembly 7 away from the center of the grinding disc 2. The transition support assembly 7 is fitted with a screw drive structure, and the output structure of the screw drive structure is connected to a pressure component that applies pressure to the lens blank 5 in the material-bearing space. The bottom structure of the pressure component is rolledly connected to the top of the lens blank 5. The screw drive structure includes a screw drive component 8 and a lifting plate 9. The screw drive component 8 includes a screw 81, a brake servo motor 82, and a nut 83. One end of the screw 81 is connected to the output end of the brake servo motor 82. The inner and outer rings of the nut 83 are threaded to the surface of the screw 81 and fixedly fitted on the inner side of the middle part of the lifting plate 9, respectively. Thus, the screw drive structure formed by the screw drive component 8 and the lifting plate 9 can provide automatic displacement power for the subsequent related structures, realizing the automated operation effect of the whole device. A support seat is fixed between the housing surface of the brake servo motor 82 and the transition bracket assembly 7, thereby ensuring its stability during continuous transmission. The pressurizing component consists of a pressure regulating rod 10. The top of the pressure regulating rod 10 is fitted inside the lifting plate 9, and the bottom of the pressure regulating rod 10 is fitted with a metal ball 12 that can roll into contact with the lens blank 5 in the material receiving space. Thus, while pressurizing the lens blank 5, it does not interfere with the self-rotation grinding operation of the lens blank 5 under the transmission of the correction ring component 4 and the limit wheel bracket component 3, thereby improving the grinding quality of the lens blank 5 by the grinding disc 2 while ensuring a high-efficiency grinding effect.

[0024] In use, for the lens blank 5 that is being ground by the combined transmission of the grinding disc 2, the limiting wheel bracket assembly 3, and the correction ring component 4, the clamping force between it and the grinding disc can be increased by applying pressure from the top. The specific operation is as follows: The brake servo motor 82 is started, and the output end of the brake servo motor 82 drives the lead screw 81 to rotate synchronously. Then, the nut 83 drives the lifting plate 9 and the pressure adjusting rod 10 to automatically move under the support of the composite support ring 6 and the transition bracket assembly 7 until the surface of the metal ball 12 is in contact with the top surface of the corresponding lens blank 5. At the same time, it is necessary to ensure that the rotation of the lens blank 5 is not interfered with, while the downward pressure of the metal ball 12 and the pressure adjusting rod 10 increases the clamping force between the bottom of the lens blank 5 and the grinding disc. In the subsequent grinding process, the metal ball 12 acts as a rolling clearance condition to avoid the pressure adjusting rod 10 interfering with the movement of the lens blank 5. Thus, the grinding quality of the lens blank 5 by the grinding disc 2 is improved while ensuring a high-efficiency grinding effect.

[0025] like Figure 1-Figure 4 The lifting plate 9 has adjustment slots 11 on both sides. There are no fewer than two pressure adjustment rods 10, which are evenly installed in the two adjustment slots 11. This ensures uniform pressure on the lens blank 5 by applying pressure from multiple positions.

[0026] In use, to ensure uniform pressure on the lens blank 5, multiple pressure adjusting rods 10 are used to increase the pressure adjustment positions of the lens blank 5. Subsequently, the output of the brake servo motor 82 drives the lead screw 81 to rotate synchronously, which in turn causes the nut 83 to drive the lifting plate 9 and the multiple pressure adjusting rods 10 to automatically move under the support of the composite support ring 6 and the transition bracket assembly 7, until the surfaces of the metal balls 12 at the bottom of the multiple pressure adjusting rods 10 are all in contact with the top surface of the corresponding lens blank 5. In this way, the clamping force between the bottom of the lens blank 5 and the grinding disc is uniformly increased by the downward pressure at multiple positions, thereby improving the grinding effect.

[0027] like Figure 1-Figure 4 , Figures 6-7 The pressure regulating rod 10 includes a composite rod 101, a limiting nut 102, and a positioning plate 103. One end of the composite rod 101 is engaged in a corresponding groove. The positioning plate 103 is fixedly sleeved on the top outer side of the composite rod 101 and located at the bottom of the lifting plate 9. The top surface of the composite rod 101 is provided with an external thread and is threadedly connected to the positioning plate 103 through the external thread. The positioning plate 103 is located on the top of the lifting plate 9 and, together with the limiting nut 102, clamps and limits the composite rod 101 and the lifting plate 9. This allows the pressure regulating rod 10 in adjacent positions to have the conditions for displacement adjustment, thereby meeting different usage requirements.

[0028] When in use, considering the maintenance needs of the pressure regulating rod 10, the limit nut 102 can be turned to temporarily move the limit nut 102 away from the lifting plate 9. Then, the positioning plate 103 can be turned to keep the positioning plate 103 parallel to the inner groove of the lifting plate 9. Then the pressure regulating rod 10 can be pulled out from the lifting plate 9 to meet the modular replacement effect.

[0029] like Figure 1-Figure 4 , Figures 6-7 The composite rod body 101 includes a T-shaped hollow cylinder 1011. A T-shaped pressure rod 1012, a return spring 1013, and a pressure sensor 1014 are respectively installed inside the T-shaped hollow cylinder 1011. The T-shaped pressure rod 1012 is snapped into the inside of the T-shaped hollow cylinder 1011, and one end of the T-shaped pressure rod 1012 passes through the T-shaped hollow cylinder 1011 and extends to the bottom of the T-shaped hollow cylinder 1011. A semi-open spherical groove that can engage with the metal ball 12 is opened in the bottom end of the T-shaped pressure rod 1012. The two ends of the return spring 1013 are respectively fixed to the other end surface of the T-shaped pressure rod 1012 and the inner bottom of the T-shaped hollow cylinder 1011. The pressure sensor 1014 is fixedly sleeved on the top inner side of the T-shaped hollow cylinder 1011 and can make pressure contact with the T-shaped pressure rod 1012. In this way, the intensity of pressure adjustment on the lens blank 5 is specifically fed back in a quantitative way of pressure data, thereby improving the control strength.

[0030] During use, considering the overvoltage issue, the output end of the brake servo motor 82 drives the lead screw 81 to rotate synchronously. This causes the nut 83 to drive the lifting plate 9 and the pressure regulating rod 10 to automatically shift under the support of the composite support ring 6 and the transition bracket assembly 7. This continues until the surface of the metal ball 12 is attached to the top surface of the corresponding lens blank 5. The operating state of the components inside the composite rod 101 is as follows: The T-shaped pressure bar 1012 is synchronously pressed and further driven by the metal ball 12. That is, the T-shaped pressure bar 1012 presses against the pressure sensor 1014, so that the pressure sensor 1014 detects and outputs pressure data to the existing back-end equipment in real time. This allows for a full understanding of the pressure intensity applied to the lens blank 5 during the downward movement of the pressure regulating rod 10, thereby minimizing the probability of overpressure.

[0031] like Figures 1-8The composite support ring 6 has an annular guide groove and a first screw hole in its top. The transition support assembly 7 includes a main support 71, an arc-shaped slide rail 72, and a transition sleeve 73. The main support 71 is installed between the arc-shaped slide rail 72 and the transition sleeve 73, and the bottom of the arc-shaped slide rail 72 is slidably installed in the annular guide groove. The inner ring structure of the arc-shaped slide rail 72 is fixed with a mounting plate. The mounting plate and the first screw hole can be detachably installed by screws. The inner side of the transition sleeve 73 can be movably sleeved with the lifting plate 9 and the pressure adjusting rod 10 to avoid structural interference. The front end of the main support 71 is fixed to the arc-shaped slide rail 72. The top of the track 72 and the inner rear end of the main support 71 are fitted with the top of the transition sleeve 73 through a bearing. The top of the rear end of the main support 71 has a second screw hole. The top of the transition sleeve 73 is equipped with a limiting curved plate 13. One end of the limiting curved plate 13 has a clearance hole that can be aligned with the second screw hole. This allows the limiting curved plate 13 and the main support 71 to be detachably installed and fixed by fitting screws with the clearance hole and then connecting with the second screw hole by thread. This satisfies the usage requirements of limiting and fixing. The lens blank 5 carried on the top of the grinding disc 2 can be formed in a circular or square shape.

[0032] In use, considering the need for grinding and applying pressure to non-circular lens blanks 5, their appearance structure has sharp edges, which could easily damage the inside of the correction ring component 4. Multiple pressure adjusting rods 10 are used to limit and fit the non-circular lens blanks 5, isolating them from the correction ring component 4 while still ensuring that the lens blanks 5 are ground by the rotating grinding disc 2. The specific operation is as follows: The output of the brake servo motor 82 drives the lead screw 81 to rotate synchronously, which in turn causes the nut 83 to drive the lifting plate 9 and multiple pressure adjusting rods 10 to automatically move under the support of the composite support ring 6 and the transition bracket assembly 7 until the multiple pressure adjusting rods 10 are located outside the corresponding side of the non-circular lens blank 5. Then, the limit nut 102 is turned to temporarily move away from the lifting plate 9. Then, the composite rod 101 and the positioning plate 103 are pushed, and the positioning plate 103 and the inner groove of the lifting plate 9 are always kept perpendicular until the bottom surface of the composite rod 101 contacts the corresponding side surface of the non-circular lens blank 5. Similarly, the remaining pressure adjusting rods 10 are operated in the same way until the multiple pressure adjusting rods 10 surround the lens blank 5 and form an isolation space between the lens blank 5 and the inner wall of the correction ring component 4. Next, the screws between the limiting curved plate 13 and the main bracket 71 are removed. Then, during the grinding process of the non-circular lens blank 5 by the rotating grinding disc 2, multiple pressure adjusting rods 10, transition sleeve 73, lead screw transmission component 8, and lifting plate 9 can rotate synchronously with the lens blank 5, which fully ensures the grinding effect of the lens blank 5.

[0033] like Figures 1-8The number of limit wheel bracket assembly 3 and the straightening ring component 4 is not less than two and they are equidistantly arranged along the circumference of the grinding disc 2 to meet the needs of multi-station operation. The top of the composite support ring 6 has several first screw holes along its own circumference, and the transition bracket assembly 7 can be used to rotate between two adjacent limit wheel bracket assemblies 3 through the arc-shaped slide rail 72 and the annular guide groove inside the composite support ring 6.

[0034] In use, for circumferential use of structures such as the lifting plate 9 and the pressure regulating rod 10, the limiting nut 102 can be turned to temporarily move the limiting nut 102 away from the lifting plate 9. Then, the positioning plate 103 is turned to keep the positioning plate 103 parallel to the inner slide groove of the lifting plate 9. Then, the pressure regulating rod 10 can be pulled out from the lifting plate 9. After all the pressure regulating rods 10 have been disassembled, the screws between the composite support ring 6 and the transition bracket assembly 7 are removed. Then, the transition bracket assembly 7 is rotated and pushed to the next station. After completion, the screws between the composite support ring 6 and the transition bracket assembly 7 are reset and locked, and multiple pressure regulating rods 10 are reset and installed.

Claims

1. An optical lens polishing device, comprising a ring polisher, the ring polisher comprising a ring polisher platform (1), a grinding disc (2), a limiting wheel bracket assembly (3), and a correcting ring component (4), wherein the limiting wheel bracket assembly (3) and the grinding disc (2) are both mounted on the top of the ring polisher platform (1), and the correcting ring component (4) is mounted on the top of the grinding disc (2) and undergoes frictional transmission with the rollers inside the limiting wheel bracket assembly (3), so that the limiting wheel bracket assembly (3) can drive the correcting ring component (4) to rotate after the grinding disc (2) rotates, characterized in that: The corrective ring component (4) has a material-bearing space inside for placing the lens blank (5). The top of the limiting wheel bracket assembly (3) is provided with a composite support ring (6) and a transition bracket assembly (7). The composite support ring (6) is installed on the top of the limiting wheel bracket assembly (3) and fixed to the side structure of the transition bracket assembly (7) away from the center of the grinding disc (2). The transition bracket assembly (7) is fitted with a screw drive structure. The output structure of the screw drive structure is connected to a pressure component that applies pressure to the lens blank (5) in the material-bearing space. The bottom structure of the pressure component is rolledly connected to the top of the lens blank (5).

2. The optical lens polishing equipment according to claim 1, characterized in that: The lead screw transmission structure includes a lead screw transmission component (8) and a lifting plate (9). The lead screw transmission component (8) includes a lead screw (81), a brake servo motor (82), and a nut (83). One end of the lead screw (81) is connected to the output end of the brake servo motor (82). The inner and outer rings of the nut (83) are threaded to the surface of the lead screw (81) and fixedly fitted on the inner side of the middle part of the lifting plate (9), respectively. A support seat is fixed between the housing surface of the brake servo motor (82) and the transition bracket assembly (7).

3. The optical lens polishing equipment according to claim 1, characterized in that: The pressurization assembly consists of a pressure regulating rod (10), the top of which is fitted inside the lifting plate (9), and the bottom of which is fitted with a metal ball (12) that can roll into contact with the lens blank (5) in the material bearing space.

4. The optical lens polishing equipment according to claim 3, characterized in that: The lifting plate (9) has adjustment slots (11) on both sides, and the pressure regulating rods (10) are provided in no less than two and are evenly distributed in the two adjustment slots (11).

5. The optical lens polishing equipment according to claim 4, characterized in that: The pressure regulating rod (10) includes a composite rod body (101), a limiting nut (102), and a positioning plate (103). One end of the composite rod body (101) is engaged in a corresponding groove. The positioning plate (103) is fixedly sleeved on the top outer side of the composite rod body (101) and located at the bottom of the lifting plate (9). The top surface of the composite rod body (101) is provided with an external thread and is threadedly connected to the positioning plate (103) through the external thread. The positioning plate (103) is located on the top of the lifting plate (9) and cooperates with the limiting nut (102) to clamp and limit the composite rod body (101) and the lifting plate (9).

6. The optical lens polishing equipment according to claim 5, characterized in that: The composite rod body (101) includes a T-shaped hollow cylinder (1011). A T-shaped pressure rod (1012), a return spring (1013), and a pressure sensor (1014) are respectively installed inside the T-shaped hollow cylinder (1011). The T-shaped pressure rod (1012) is snapped into the interior of the T-shaped hollow cylinder (1011), and one end of the T-shaped pressure rod (1012) penetrates through the T-shaped hollow cylinder (1011) and extends into it. Outside the bottom, the bottom end of the T-shaped pressure rod (1012) is provided with a semi-open spherical groove that can engage with the metal ball (12). The two ends of the reset spring (1013) are respectively fixed on the other end surface of the T-shaped pressure rod (1012) and the inner bottom of the T-shaped hollow cylinder (1011). The pressure sensor (1014) is fixedly sleeved on the top inner side of the T-shaped hollow cylinder (1011) and can make contact with the T-shaped pressure rod (1012) by pressing.

7. The optical lens polishing equipment according to claim 1, characterized in that: The composite support ring (6) has an annular guide groove and a first screw hole in the top. The transition support assembly (7) includes a main support (71), an arc-shaped slide rail (72), and a transition sleeve plate (73). The main support (71) is installed between the arc-shaped slide rail (72) and the transition sleeve plate (73). The bottom of the arc-shaped slide rail (72) is slidably installed in the annular guide groove. The inner ring structure of the arc-shaped slide rail (72) is fixed with an installation plate. The installation plate and the first screw hole can be detachably installed by screws. The inner side of the transition sleeve plate (73) can be movably connected with the lifting plate (9) and the pressure adjusting rod (10).

8. The optical lens polishing equipment according to claim 7, characterized in that: The front end of the main bracket (71) is fixed to the top of the arc-shaped slide rail (72), and the inner side of the rear end of the main bracket (71) is fitted with the top of the transition sleeve plate (73) through a bearing. The top of the rear end of the main bracket (71) is provided with a second screw hole. The top of the transition sleeve plate (73) is equipped with a limiting curved plate (13). One end of the limiting curved plate (13) is provided with a clearance hole that can be aligned with the second screw hole, so that the limiting curved plate (13) and the main bracket (71) can be detachably installed and fixed by fitting the screw with the clearance hole and then connecting it with the second screw hole by thread.

9. The optical lens polishing equipment according to claim 1, characterized in that: The number of the limiting wheel bracket assembly (3) and the correction ring component (4) is not less than two and they are equidistantly arranged along the circumference of the grinding disc (2).

10. The optical lens polishing equipment according to claim 8, characterized in that: The top of the composite support ring (6) has several first screw holes along its circumference, and the transition support assembly (7) can be used to rotate between two adjacent limit wheel support assemblies (3) through the arc-shaped slide rail (72) and the annular guide groove inside the composite support ring (6).