An optical lens processing turntable

Abstract

This invention belongs to the field of optical lens processing, and particularly relates to an optical lens processing turntable, including a processing table with a processing groove on the processing table. A base is set at the bottom of the processing groove, and two sets of turntable assemblies are symmetrically arranged on the base. A drive assembly is shared between the two sets of turntable assemblies and the base. A polishing mechanism is provided on the turntable assembly. The turntable assembly includes a semi-circular support cover, which is connected to the base via a support tube. A rubber sleeve adapted to the shape of the support cover is fitted on the outer arc surface of the support cover, and multiple fixing grooves for supporting lenses are formed on the surface of the rubber sleeve. This invention directly fixes lenses through the turntable assembly. Lens installation only requires pressing into the groove and then vacuum adsorption, and demolding only requires releasing the vacuum negative pressure. While ensuring the stability of lens fixation, it eliminates heating, cooling, and asphalt cleaning processes, significantly shortening the single-cycle processing time and greatly reducing material usage costs.

Description

Technical Field

[0001] This invention belongs to the field of optical lens processing, and particularly relates to an optical lens processing turntable. Background Technology

[0002] In the field of optical lens manufacturing, a classic polishing process widely used in the industry is the hemispherical mold fixing method based on asphalt bonding. The operation process is as follows: The hemispherical mold used to support the lens is heated above the softening point of the asphalt. Simultaneously, molten thermoplastic optical asphalt is poured onto the back (non-working surface) of multiple optical lenses to be polished. The asphalt-filled lenses are then quickly and precisely attached to predetermined positions on the spherical surface of the preheated mold. The lenses are initially positioned using the fluidity and adhesion of the asphalt, as well as the heat of the mold surface. Rapid cooling (such as pouring cold water) causes the asphalt between the mold and the lenses to solidify and harden rapidly, forming a strong adhesive layer, thus rigidly fixing the lenses to the spherical surface of the mold. A polishing hood / mask, precisely matching the shape of the hemispherical mold (usually with an embedded polishing pad or cloth), is then applied to the entire surface of the hemispherical mold with the lenses fixed on it. The entire mold assembly (including the lenses fixed to it) is rotated simultaneously with the supply of polishing fluid. Under the influence of centrifugal force and friction, the surface of the lens to be processed continuously and evenly contacts the inner wall of the rotating polishing mask, achieving precision polishing of the mirror surface. After polishing, the entire mold assembly needs to be reheated above the softening point of the asphalt, and the lenses are carefully removed one by one. Subsequently, a thorough and meticulous cleaning process must be performed on the asphalt residue on the lens surface and the asphalt that has hardened on the mold sphere to avoid contaminating or damaging the optical surface.

[0003] However, this processing and fixing method has the following drawbacks: 1. Each processing cycle is forced to include multiple time-consuming steps such as heating, bonding, cooling, polishing, reheating, demolding, and cleaning. The heating and cooling processes require precise temperature control and are time-consuming, which severely limits the processing cycle and production capacity. 2. Cleaning the asphalt residue after lens demolding is an essential step. This process not only requires the use of specific solvents but also requires extremely careful operation to avoid damaging the polished optical surface or introducing new contaminants, which is time-consuming, labor-intensive, and increases the cost of waste liquid treatment. 3. Cleaning the mold itself is also time-consuming and labor-intensive. Each bonding requires a certain amount of optical-grade asphalt, and the cleaning process inevitably results in some asphalt being unrecyclable, increasing material costs. 4. If a traditional rigid mechanical fixing method is used, the pressure of the clamp will be concentrated at the contact point, which may cause the lens to be damaged due to excessive stress. After the clamp is released, the stress is released, and irreversible precision errors will occur on the lens surface.

[0004] In summary, there is an urgent need for an optical lens processing turntable to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an optical lens processing turntable, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, this application provides the following technical solution: The present invention provides an optical lens processing turntable, including a processing table. A processing groove is formed on the processing table, and a base is provided at the bottom of the processing groove. Two sets of turntable assemblies are symmetrically arranged on the base. A driving assembly is shared between the two sets of turntable assemblies and the base. A polishing mechanism is provided on each turntable assembly. Each turntable assembly includes a semi-circular support cover, which is connected to the base via a support tube. A rubber sleeve adapted to the shape of the outer arc surface of the support cover is fitted with the rubber sleeve. Multiple fixing grooves for supporting lenses are formed on the surface of the rubber sleeve. Multiple adsorption cavities are formed inside the sidewall of the support cover, each corresponding to a fixing groove. Multiple adsorption holes are formed between the adsorption cavity and the corresponding fixing groove. Multiple positioning components for limiting the sliding of the lens under pressure are also provided on the outer arc surface of the support cover. Each positioning component includes a limiting ring fixedly connected to the outer arc surface of the support cover and slidably inserted into the rubber sleeve. Multiple buffer strips are slidably embedded in the inner ring of the limiting ring along its circumference. The end face of the lens is pressed into the fixing groove and adheres to the bottom of the fixing groove for initial positioning. At the same time, the suction port generates negative pressure to attract the end face of the lens for further fixing. In addition, the limiting ring and multiple buffer strips work together to wrap around the lens to limit the movement and prevent the lens from shifting excessively.

[0007] According to an advantageous embodiment, the support tube includes a main support tube rotatably disposed on the upper side of the base, and a plurality of branch tubes connected to the interior of the main support tube are fixedly disposed on the main support tube. The branch tubes are fixedly connected to the inner wall of the concave surface of the support cover and communicate with the corresponding adsorption chamber.

[0008] According to an advantageous embodiment, the base has an internal cavity, and two vacuum tubes are fixedly installed on the upper side of the base. The upper ends of the vacuum tubes are rotatably connected to the main support tube, and both vacuum tubes are connected to an external vacuum negative pressure device.

[0009] According to an advantageous embodiment, the drive assembly includes a motor fixedly disposed within the cavity, the output shaft of the motor movably passing through the upper side of the base and being connected to the lower ends of the two main support tubes via a sprocket set.

[0010] According to an advantageous embodiment, the lower edge of the rubber sleeve is provided with a notch along its circumferential direction, a fixing ring is sleeved in the notch, and a plurality of locking bolts are rotatably provided on the fixing ring along its circumferential direction. The locking bolts are threadedly connected to the rubber sleeve and the corresponding position of the support cover.

[0011] According to an advantageous embodiment, the rubber sleeve has multiple slots adapted to the limiting ring on the side near the support cover, the limiting ring is slidably inserted into the corresponding slot, the inner ring of the fixing groove has multiple communicating holes connected to the corresponding slots along its circumferential direction, and the buffer strip is movably disposed in the communicating holes.

[0012] According to an advantageous embodiment, the buffer strip is composed of a rigid arc-shaped plastic strip and a soft arc-shaped rubber strip. The inner ring of the limiting ring is provided with a fitting groove along its circumference. The plastic strip is slidably embedded in the fitting groove, and the rubber strip is fixedly laid on the concave surface of the plastic strip.

[0013] According to an advantageous embodiment, the polishing mechanism includes two rotating seats rotatably disposed on the upper side of the processing table. A connecting plate is rotatably disposed on the rotating seats. A spring telescopic rod is connected to the front end of the connecting plate. The telescopic end of the spring telescopic rod is connected to a polishing cover through a ball joint. An adjustment component is also disposed on the upper side of the rotating seats. A second drive component is disposed between the two rotating seats and the processing table.

[0014] According to an advantageous embodiment, the adjustment assembly includes a fixed base fixedly disposed on the upper side of the rotating seat, an electric actuator hinged to the fixed base, and the telescopic end of the electric actuator being hinged to the upper side of the connecting plate.

[0015] According to an advantageous embodiment, the second drive assembly includes a first drive plate slidably disposed on the back of the processing table, two drive pins rotatably disposed on the first drive plate, a transmission plate fixedly disposed on the rear side of the rotating seat, the transmission plate having movable holes, the drive pins being movably inserted into the corresponding movable holes, and a second motor fixedly disposed on the rear side of the processing table, a drive disk fixedly connected to the output shaft of the second motor, the second drive plate hinged to the upper edge of the drive disk, and the other side of the second drive plate hinged to the first drive plate.

[0016] Compared with the prior art, the optical lens processing turntable provided by the present invention has the following beneficial effects: 1. In the present invention, the lens is directly fixed by the turntable assembly. The lens installation only requires pressing into the groove and then vacuum adsorption. Demolding only requires releasing the vacuum negative pressure. Under the premise of ensuring the stability of lens fixation, the heating, cooling, asphalt cleaning and other links are eliminated, which greatly shortens the single cycle processing time and greatly reduces the material usage cost.

[0017] 2. In this invention, a fixing groove is formed on the surface of the rubber sleeve outside the support cover. By utilizing the elastic properties of rubber, the groove wall can adapt to the micro-morphology of the lens end face when the lens is pressed in, forming a surface contact bag similar to asphalt. This avoids local pressure deformation caused by point contact of mechanical clamps. In conjunction with the adsorption cavity and adsorption hole inside the support cover, the adhesion stability between the lens and the bottom of the fixing groove is further enhanced by vacuum negative pressure, ensuring no stress concentration during the fixing process.

[0018] 3. In this invention, the buffer strip of the positioning component is composed of a soft rubber strip and a hard plastic strip, which flexibly limits the peripheral side of the lens and prevents the lens from sliding excessively along the spherical direction of the support cover during polishing. This solves the problem of irreversible precision error caused by stress release after rigid fixation and significantly improves the surface precision of the lens after polishing. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention during lens polishing.

[0020] Figure 2 This is a front sectional planar structural diagram of the present invention.

[0021] Figure 3 This is a front sectional plan view of the turntable assembly in this invention.

[0022] Figure 4 for Figure 3 Enlarged structural diagram of part A in the middle.

[0023] Figure 5 This is a cross-sectional perspective view of the turntable assembly in this invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the polishing cover after it is separated from the rubber sleeve in this invention.

[0025] Figure 7 This is a three-dimensional structural diagram of the rubber sleeve in this invention.

[0026] Figure 8 This is a three-dimensional structural diagram of the support cover in this invention.

[0027] Figure 9 This is a schematic diagram of the disassembled structure of the lens and rubber sleeve in this invention.

[0028] Figure 10 This is a schematic diagram of the external structure of the buffer strip in this invention.

[0029] Figure 11 This is a schematic diagram showing the state of the polishing cover polishing the lens in this invention.

[0030] The attached figures are labeled as follows: 1. Processing table; 2. Processing groove; 3. Base; 4. Turntable assembly; 41. Support cover; 42. Support pipe; 421. Main support pipe; 422. Branch pipe; 43. Rubber sleeve; 44. Fixing groove; 45. Adsorption chamber; 46. Adsorption hole; 5. Drive assembly one; 6. Polishing mechanism; 61. Rotating seat; 62. Connecting plate; 63. Spring telescopic rod; 64. Polishing cover; 65. Adjustment assembly; 66. Drive assembly two; 661. Drive plate one; 662. Drive pin; 663. Transmission plate; 664. Drive disc; 665. Drive plate two; 7. Positioning assembly; 71. Limiting ring; 72. Buffer strip; 721. Plastic strip; 722. Rubber strip; 8. Vacuum tube; 9. Fixing ring; 10. Slot; 11. Connecting hole; 12. Fitting groove; 13. Lens. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 11 This application will now be described in further detail.

[0032] Please refer to the following: Figure 1 and Figure 2 An optical lens processing turntable includes a processing table 1, a processing groove 2 on the processing table 1, a base 3 at the bottom of the processing groove 2, two sets of turntable assemblies 4 symmetrically arranged on the base 3, a drive assembly 5 shared between the two sets of turntable assemblies 4 and the base 3, and a polishing mechanism 6 on the turntable assembly 4. A lens 13 is directly fixed via the turntable assembly 4, and then the drive assembly 5 drives and controls the rotation of the lens 13, which is then polished by the polishing mechanism 6.

[0033] See Figure 2 and Figure 3 To replace the traditional asphalt method for fixing the lens 13 and avoid the stress concentration damage to the lens 13 caused by the traditional mechanical fixing method, the turntable assembly 4 includes a semi-circular support cover 41. The support cover 41 is connected to the base 3 through a support tube 42. The outer arc surface of the support cover 41 is fitted with a rubber sleeve 43 that matches its shape. The surface of the rubber sleeve 43 has multiple fixing grooves 44 for supporting the lens 13. The inside of the side wall of the support cover 41 has multiple adsorption cavities 45, which correspond one-to-one with the fixing grooves 44. Multiple adsorption holes 46 are provided between the adsorption cavities 45 and the corresponding fixing grooves 44. The outer arc surface of the support cover 41 is also provided with multiple positioning components 7 for limiting the sliding of the lens 13 under pressure.

[0034] In practice, workers can directly apply pressure to press the lens 13 into the fixing groove 44 on the surface of the rubber sleeve 43, so that the end face of the lens 13 fits against the bottom of the fixing groove 44, thus initially fixing the lens 13. After all the lenses 13 are installed in the fixing grooves 44 on the surface of the rubber sleeve 43, they are then connected to an external vacuum negative pressure device through the support tube 42, so that negative pressure is generated at the suction hole 46 port at the bottom of the fixing groove 44, and the bottom of the lens 13 is vacuum-adsorbed, thus further fixing the lens 13. At the same time, the periphery of the lens 13 is limited by the positioning component 7. Instead of using asphalt to fix the lens 13, the overall assembly and disassembly are quicker and more convenient. The elastic properties of the rubber sleeve 43 allow the groove wall to adapt to the microscopic morphology of the end face of the lens 13 when the lens 13 is pressed into the fixing groove 44, forming a "surface contact wrapping" similar to asphalt. The contact stress is evenly distributed through the elastic buffer of the rubber, avoiding local stress concentration caused by the "point contact" of the mechanical clamp. Vacuum adsorption forms a uniform negative pressure through the adsorption hole 46 at the bottom of the fixing groove 44, further enhancing the adhesion stability between the lens 13 and the bottom of the groove.

[0035] It should be noted that the friction of polishing lens 13 is usually low, and the polishing of lens 13 in this technical field usually requires a low-pressure, high-lubrication process design. Its core function is to drive the abrasive particles to perform "micro-cutting" on the surface of lens 13, rather than strong friction. This process is a well-known technology in this technical field and has not been described in detail in this solution.

[0036] See Figure 3 , Figure 4 , Figure 7 and Figure 9 To avoid direct and rigid contact between the positioning component 7 and the periphery of the lens 13 while ensuring sufficient limiting effect of the positioning component 7 on the lens 13, the positioning component 7 includes a limiting ring 71 fixedly connected to the outer arc surface of the support cover 41 and slidably inserted into the rubber sleeve 43. Multiple buffer strips 72 are slidably embedded in the inner ring of the limiting ring 71 along its circumferential direction. Multiple slots 10 adapted to the limiting ring 71 are opened on the side of the rubber sleeve 43 near the support cover 41. The limiting ring 71 is slidably inserted into the corresponding slot 10. Multiple communicating holes 11 connected to the corresponding slots 10 are opened in the inner ring of the fixing groove 44 along its circumferential direction. The buffer strips 72 are movably disposed within the communicating holes 11. The limiting ring 71 is sleeved on the periphery of the corresponding lens 13 and fixedly connected to the support cover 41, so that the limiting ring 71 cannot move under force. At the same time, the multiple buffer strips 72 installed on the periphery of the limiting ring 71 flexibly abut against the lens 13 through the connecting hole 11, which has a sufficient limiting effect on the lens 13 and avoids the possibility of damage caused by direct hard contact between the periphery of the lens 13 and the limiting ring 71.

[0037] See Figure 4 , Figure 8 , Figure 9 and Figure 10 To facilitate individual replacement of the buffer strip 72, the buffer strip 72 is composed of a rigid, curved plastic strip 721 and a soft, curved rubber strip 722. A fitting groove 12 is formed along the circumference of the inner ring of the limiting ring 71. The plastic strip 721 is slidably fitted into the fitting groove 12, and the rubber strip 722 is fixedly laid on the concave surface of the plastic strip 721. Each buffer strip 72 can be directly inserted into the fitting groove 12 of the inner ring of the limiting ring 71 through the connecting hole at the port of the fixing groove 44. The pressure from the connecting hole on the rubber sleeve 43 secures the buffer strip 72 to the limiting ring 71. The soft rubber strip 722 contacts the periphery of the lens 13, preventing direct hard contact between the lens 13 and the limiting ring 71. Subsequent replacements only require manual removal of the buffer strip 72 from the port of the fixing groove 44.

[0038] See Figure 3 , Figure 4 , Figure 7 and Figure 8 To facilitate replacement of the rubber sleeve 43, a notch is provided along the circumference of the lower edge of the rubber sleeve 43. A retaining ring 9 is fitted inside the notch, and multiple locking bolts are rotatably mounted on the retaining ring 9 along its circumference. The locking bolts are threaded through the rubber sleeve 43 and the corresponding position of the support cover 41. The rubber sleeve 43 is inserted into the limiting ring 71 through the groove 10 on its concave surface, and then the lower end of the rubber sleeve 43 is fixed by the retaining ring 9. Subsequently, by rotating the locking bolts, the rubber sleeve 43 can be quickly removed from the surface of the support cover 41 for replacement.

[0039] It should be noted that the service life of the rubber sleeve 43 and the buffer strip 72 in this solution has been determined by multiple tests conducted by those skilled in the art. At the same time, the usage status of the two is inspected every week to ensure that the rubber sleeve 43 and the buffer strip 72 can maintain stable performance during the polishing of the lens 13.

[0040] See Figure 2 , Figure 3 and Figure 5The support pipe 42 includes a main support pipe 421 rotatably mounted on the upper side of the base 3. Multiple branch pipes 422, communicating with the interior of the main support pipe 421, are fixedly mounted on the main support pipe 421. The branch pipes 422 are fixedly connected to the inner wall of the concave surface of the support cover 41 and communicate with the corresponding adsorption chamber 45. The base 3 has an internal cavity. Two vacuum tubes 8 are fixedly mounted on the upper side of the base 3. The upper ends of the vacuum tubes 8 are rotatably connected to the main support pipe 421 (the connection is sealed). Both vacuum tubes 8 are connected to an external vacuum negative pressure device. The external vacuum negative pressure device, in conjunction with the vacuum tubes 8, evacuates the adsorption chamber 45, creating negative pressure in the corresponding adsorption holes 46. This adsorbs and adheres to the lens 13 at the port of the adsorption hole 46, causing the end face of the lens 13 to be tightly pressed against the bottom surface of the fixing groove 44. The specific structure of the vacuum negative pressure device and the corresponding electrical control system are conventional technologies in this field and will not be described in detail in this solution.

[0041] See Figure 1 , Figure 2 , Figure 3 and Figure 5 The drive assembly 5 includes a motor fixedly installed in the cavity. The output shaft of the motor extends through the upper side of the base 3 and is connected to the lower ends of the two main support tubes 421 via a sprocket set. The motor, in conjunction with the sprocket set, drives the two main support tubes 421 to rotate, thereby controlling the rotation of the two support covers 41.

[0042] See Figure 1 , Figure 2 , Figure 3 and Figure 6 The polishing mechanism 6 includes two rotating seats 61 rotatably mounted on the upper side of the processing table 1. A connecting plate 62 is rotatably mounted on the rotating seats 61, and a spring telescopic rod 63 is provided at the front end of the connecting plate 62. The telescopic end of the spring telescopic rod 63 is connected to a polishing cover 64 through a ball joint. An adjustment component 65 is also provided on the upper side of the rotating seats 61. A second drive component 66 is provided between the two rotating seats 61 and the processing table 1. The second drive component 66 drives the two rotating seats 61 to reciprocate within a certain angle range. Thus, while the support cover 41 rotates and drives the lens 13 to rotate, the polishing cover 64 can slide accordingly, ensuring that the polishing cover 64 can fully contact the lens 13. At the same time, the adjustment component 65 can control the separation and contact between the polishing cover 64 and the lens 13. A polishing pad is laid on the inner wall of the polishing cover 64, which can contact the surface of the lens 13 for polishing. Correspondingly, lubricant and polishing paste are also sprayed on the surface of the lens 13.

[0043] See Figure 1The adjustment assembly 65 includes a fixed base fixedly mounted on the upper side of the rotating base 61. An electric actuator is hinged to the fixed base, and the telescopic end of the electric actuator is hinged to the upper side of the connecting plate 62. The connecting plate 62 is rotated relative to the rotating base 61 by the telescopic movement of the electric actuator, thereby lifting the polishing cover 64.

[0044] See Figure 1 and Figure 11 The second drive assembly 66 includes a first drive plate 661 slidably disposed on the back of the processing table 1. Two drive pins 662 are rotatably disposed on the first drive plate 661. A transmission plate 663 is fixedly disposed on the rear side of the rotating seat 61. The transmission plate 663 has a movable hole. The drive pins 662 are movably inserted into the corresponding movable hole. A second motor is fixedly disposed on the rear side of the processing table 1. A drive disk 664 is fixedly connected to the output shaft of the second motor. The second drive plate 665 is hinged to the upper edge of the drive disk 664. The other side of the second drive plate 665 is hinged to the first drive plate 661. The second motor controls the rotation of the drive plate 664, which in turn causes the second drive plate 665 to rotate and pull the first drive plate 661 to move back and forth. The left and right movement of the first drive plate 661 drives the transmission plate 663 through the drive pin 662, which in turn drives the rotating seat 61 to rotate back and forth. The rotation of the rotating seat 61 cooperates with the spring telescopic rod 63, so that the polishing cover 64 is attached to the surface of the lens 13 and rotates around the center of the lens 13 to polish the lens 13.

[0045] The entire turntable is used as follows: The operator presses the lens 13 into the fixing groove 44 on the surface of the rubber sleeve 43. After all the lenses 13 are placed, the suction hole 46 is controlled by an external vacuum negative pressure device to generate negative pressure, further locking the end face of the lens 13 to the bottom of the fixing groove 44. Then, the polishing cover 64 is placed on the surface of the support cover 41 by adjusting the component 65. The operation of motor one and motor two causes the support cover 41 to rotate the lens 13, while the polishing cover 64 swings back and forth to cooperate with the support cover 41 to polish the lens 13.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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.

[0047] Furthermore, the terms "first," "second," "number one," and "number two" 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," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] 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 or an electrical 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An optical lens processing turntable, comprising a processing table, characterized in that: A processing groove is provided on the processing table, and a base is provided at the bottom of the processing groove. Two sets of turntable assemblies are provided on the base, and a drive assembly is provided between the two sets of turntable assemblies and the base. A polishing mechanism is provided on the turntable assembly. The turntable assembly includes a semi-circular support cover, which is connected to the base via a support tube. The outer arc surface of the support cover is fitted with a rubber sleeve that matches its shape. The surface of the rubber sleeve has multiple fixing grooves for supporting the lens. The inside of the side wall of the support cover has multiple adsorption cavities, which correspond one-to-one with the fixing grooves. Multiple adsorption holes are provided between the adsorption cavities and the corresponding fixing grooves. The outer arc surface of the support cover is also provided with multiple positioning components for limiting the sliding of the lens under pressure. The positioning component includes a limiting ring that is fixedly connected to the outer arc surface of the support cover and slidably inserted into the rubber sleeve. Multiple buffer strips are slidably embedded in the inner ring of the limiting ring along its circumferential direction. The end face of the lens is pressed into the fixing groove and adhered to the bottom of the fixing groove for initial positioning. The wall of the fixing groove adapts to the micro-morphology of the end face of the lens, forming a surface contact wrapping. The contact stress is evenly distributed by the elastic buffer of the rubber. At the same time, the suction hole port generates negative pressure to adsorb the end face of the lens for further fixing. In addition, the limiting ring and multiple buffer strips work together to wrap around the lens to limit the movement and prevent the lens from shifting excessively. The rubber sleeve has multiple slots that fit the limiting ring on the side near the support cover. The limiting ring is slidably inserted into the corresponding slot. The inner ring of the fixing groove has multiple connecting holes that communicate with the corresponding slots along its circumferential direction. The buffer strip is movably disposed in the connecting holes. The buffer strip is composed of a rigid arc-shaped plastic strip and a soft arc-shaped rubber strip. The inner ring of the limiting ring has a fitting groove along its circumference. The plastic strip is slidably embedded in the fitting groove, and the rubber strip is fixedly laid on the concave surface of the plastic strip.

2. The optical lens processing turntable according to claim 1, characterized in that, The support tube includes a main support tube rotatably mounted on the upper side of the base, and multiple branch tubes connected to the interior of the main support tube are fixedly mounted on the main support tube. The branch tubes are fixedly connected to the inner wall of the concave surface of the support cover and communicate with the corresponding adsorption chamber.

3. The optical lens processing turntable according to claim 2, characterized in that, The base has an internal cavity, and two vacuum tubes are fixedly installed on the upper side of the base. The upper end of the vacuum tubes is rotatably connected to the main support tube, and both vacuum tubes are connected to an external vacuum negative pressure device.

4. The optical lens processing turntable according to claim 3, characterized in that, The drive assembly includes a motor fixedly installed in the cavity. The output shaft of the motor extends through the upper side of the base and is connected to the lower ends of the two main support tubes via a sprocket set.

5. The optical lens processing turntable according to claim 1, characterized in that, The lower edge of the rubber sleeve has a notch or groove along its circumference. A fixing ring is fitted inside the notch or groove. Multiple locking bolts are rotatably mounted on the fixing ring along its circumference. The locking bolts are threaded through the rubber sleeve and connected to the corresponding position of the support cover.

6. The optical lens processing turntable according to claim 1, characterized in that, The polishing mechanism includes two rotating seats rotatably mounted on the upper side of the processing table. A connecting plate is rotatably mounted on the rotating seats. A spring telescopic rod is connected to the front end of the connecting plate. The telescopic end of the spring telescopic rod is connected to a polishing cover through a ball joint. An adjustment component is also provided on the upper side of the rotating seats. A second drive component is provided between the two rotating seats and the processing table.

7. The optical lens processing turntable according to claim 6, characterized in that, The adjustment assembly includes a fixed base fixedly mounted on the upper side of the rotating seat, and an electric actuator hinged to the fixed base. The telescopic end of the electric actuator is hinged to the upper side of the connecting plate.

8. The optical lens processing turntable according to claim 6, characterized in that, The second drive assembly includes a drive plate slidably disposed on the back of the processing table. Two drive pins are rotatably disposed on the drive plate 1. A transmission plate is fixedly disposed on the rear side of the rotating seat. The transmission plate has movable holes. The drive pins are movably inserted into the corresponding movable holes. A second motor is fixedly disposed on the rear side of the processing table. A drive disk is fixedly connected to the output shaft of the second motor. The upper edge of the drive disk is hinged to the second drive plate. The other side of the second drive plate is hinged to the first drive plate.

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