An automatic optical lens polishing machine

Abstract

The application relates to the field of optical lens polishing technology and discloses an automatic optical lens polishing machine; the automatic optical lens polishing machine comprises a polishing table and multiple limiting clamps; a rotary table is assembled on the polishing table, and a polishing pad is fixed to the upper end surface of the rotary table; the multiple limiting clamps are fixed on the polishing table and located above the polishing pad; each limiting clamp comprises a horizontally-arranged circular ring tray, a liquid spraying ring is rotationally installed on the inner wall of the circular ring tray in a coaxial mode, a base ring is coaxially fixed on the liquid spraying ring, multiple lens clamping heads are detachably installed on the base ring in a circumferential distribution mode, and an adjusting assembly for synchronously adjusting the clamping force of the multiple lens clamping heads is assembled on the base ring; the automatic optical lens polishing machine can realize non-eccentric flexible clamping, adjustable micro-pressure, active self-rotation and uniform liquid distribution of the lens, so that the lens can be stably polished in a state of uniform adhesion to the polishing pad and uniform distribution of polishing liquid, and the polishing precision and quality of the lens are ensured.

Description

Technical Field

[0001] This invention relates to the field of optical lens polishing technology, and specifically proposes an automatic optical lens polishing machine. Background Technology

[0002] Optical lenses are divided into planar lenses and non-planar lenses. Planar lenses are polished using planar polishing equipment, which is suitable for batch polishing of multiple lenses. In this planar polishing equipment, a turntable drives the polishing pad to rotate, and the lens is placed on the polishing pad. The rotation of the polishing pad drives the abrasive in the polishing fluid to achieve planar polishing. Multiple limiting frames are also configured to limit multiple lenses. Each lens is placed in the limiting frame to prevent the lens from flying or colliding, so that multiple lenses can be polished independently without interference.

[0003] In existing polishing equipment for polishing circular planar lenses, the limiting frame is a circular frame. When the polishing pad revolves, one side of the lens is forced to contact the inner wall of the limiting frame. Under the combined force of the friction of the polishing pad and the lateral force of the limiting frame, the lens rotates and is polished. However, the existing equipment still has the following problems with the method of the lens being blocked on one side and passively rotating.

[0004] 1. The lens is in rigid contact with the inner wall of the limiting frame, which constantly generates hard friction on the side wall of the lens. This causes unnecessary and continuous wear on the side wall of the lens. Relatively thin lenses are more prone to edge chipping, and the glass powder or debris generated by the wear can easily scratch the lens surface when it falls onto the polishing pad. In addition, the inner wall of the limiting ring is prone to roughening, which is not conducive to the subsequent polishing process of the lens.

[0005] 2. When the inner wall of the limiting frame makes contact with the lens on one side, the lens is subjected to a non-central lateral force, which affects the complete flatness and adhesion between the lens and the polishing pad. There is an uneven distribution of adhesion pressure, resulting in uneven polishing of the lens surface, which directly affects the polishing accuracy of the lens surface.

[0006] 3. Passive rotation is directly affected by the friction of the bottom surface and the lateral force of the limiting frame. The rotation is unstable, sometimes fast and sometimes slow, sometimes rotating and sometimes stopping, which also affects the uniformity and precision of polishing.

[0007] 4. The lens is placed directly on the polishing pad by its own weight, which results in poor adhesion and stability between the lens and the polishing pad.

[0008] In addition, multiple limiting frames are generally distributed circumferentially around the central axis of the turntable, and the polishing slurry is generally sprayed from the center of the turntable onto the polishing pad, and the polishing slurry is guided to spread and flow from the center to the surrounding area by the centrifugal force of the rotation. Obviously, the polishing slurry is unevenly distributed on the polishing pad, with a thicker center and a thinner periphery. The uniformity of the polishing slurry distribution determines the uniformity of the abrasive distribution. The worse the uniformity, the uneven distribution of the abrasive on the lens surface, which directly affects the precision of the lens polishing. Summary of the Invention

[0009] To address the aforementioned problems, this invention provides an automatic optical lens polishing machine, which solves the problems mentioned in the background section.

[0010] To achieve the above objectives, the present invention employs the following technical solution: an automatic optical lens polishing machine, comprising a polishing table and multiple limiting fixtures; a turntable is mounted on the polishing table, and a polishing pad is fixed on the upper surface of the turntable; multiple limiting fixtures are all fixed on the polishing table and located above the polishing pad; each limiting fixture includes a horizontally arranged annular tray, and a spray ring is coaxially and rotatably mounted on the inner wall of the annular tray. The spray ring and the annular tray together form an annular cavity for introducing polishing liquid, and the spray ring has multiple circumferentially distributed nozzles that spray polishing liquid from the annular cavity into the spray ring. The device consists of a nozzle; a base ring is coaxially fixed on the spray ring; multiple circumferentially distributed lens chucks are detachably mounted on the base ring, with the lens chucks extending downward into the spray ring to clamp the lens. When the lens is circumferentially clamped between the multiple lens chucks, the lens chucks exert downward pressure on the lens; the base ring is also equipped with an adjustment component for synchronously adjusting the clamping force of the multiple lens chucks on the lens; when the turntable rotates, the spray ring rotates, and the polishing liquid is sprayed from the nozzle along with the rotating spray ring, and the spray ring indirectly drives the lens to rotate and polish through the base ring and the lens chucks.

[0011] Preferably, a column extending upward through the turntable is vertically fixed on the polishing table, and a support frame is horizontally fixed on the column; multiple limiting clamps are fixed on the support frame via circular trays.

[0012] Preferably, multiple limiting clamps are circumferentially distributed around the central axis of the turntable; a slewing bearing is fixed to the upper end face of the spray ring, and the spray ring is rotatably mounted on the inner wall of the circular tray through the slewing bearing; a driven gear ring is fixed on the slewing bearing; a drive gear ring is coaxially fixed on the turntable, and the driven gear ring meshes with the drive gear ring.

[0013] Preferably, the base is provided with slots distributed circumferentially to correspond one-to-one with the lens clamps; the lens clamps include insert blocks that are inserted into the slots.

[0014] Preferably, the lens clamp further includes a guide pin that is slidably mounted on the insert block along the base ring. One end of the guide pin is fixed with a clamping block, and the clamping block extends downward into the ring of the spray ring. The clamping block and the insert block are elastically connected in the axial direction of the guide pin.

[0015] Preferably, the clamping block is detachably fixed with a clamping block pad that flexibly clamps and contacts the side wall of the lens. The clamping end face of the clamping block pad facing the center of the spray ring is divided into an inclined section and a vertical section from top to bottom. The inclined section gradually slopes upwards towards the center of the spray ring from the connection point with the vertical section.

[0016] Preferably, the adjustment assembly includes a series ring that slides vertically with the base ring; a spring plate is fixed to the top of the clamping block; and multiple lens clamps are fixedly connected to the series ring via spring plates.

[0017] Preferably, the annular tray has a coaxial annular groove inside the ring; the spray ring is embedded in the annular groove, and the spray ring is in rotational contact with the annular groove.

[0018] Preferably, the top of the base ring is provided with a guide ring, and the connecting ring is vertically and slidably installed in the guide ring in a keyed fit.

[0019] Preferably, the spray ring has an annular U-shaped groove structure, and the U-shaped opening of the spray ring faces the side wall of the annular tray. The side wall of the annular tray is provided with a liquid inlet connector that communicates with the annular cavity.

[0020] The above technical solution has the following advantages or beneficial effects: This invention provides an automatic optical lens polishing machine, which replaces the existing limiting frame with a limiting fixture. The limiting fixture, through multiple circumferentially distributed lens chucks, can flexibly clamp and position the lens with central force, avoiding rigid contact with the lens sidewall. The rotating table drives the limiting fixture, causing the lens to rotate, thus eliminating passive rotation polishing and solving the problem of insufficient rotation stability caused by uncontrollable force factors during passive rotation. Stable rotation polishing can be achieved, and the problems of continuous wear on the lens sidewall and the introduction of wear particles, chipped debris, and other impurities are also solved. The lateral clamping of the lens by the multiple circumferentially distributed lens chucks avoids eccentric force and provides adjustable downward pressure. This invention avoids the problem of uneven adhesion between the lens and the polishing pad caused by eccentric force on the lens and reliance on its own weight for placement and bonding, thus improving the flatness and adhesion between the lens and the polishing pad. In addition, the limiting clamp also integrates a liquid distribution structure that rotates around the lens to spray polishing liquid, improving the uniformity of the polishing liquid distribution on the mirror surface and solving the problem of uneven distribution of polishing liquid that relies on centrifugal force diffusion in existing equipment. In summary, the automatic optical lens polishing machine provided by this invention, through non-eccentric flexible clamping, adjustable micro-pressure, active rotation, and uniform liquid distribution, enables the lens to be stably polished under uniform pressure and uniform distribution of polishing liquid with the polishing pad, thereby ensuring the precision and quality of lens polishing. Attached Figure Description

[0021] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings, which are not intentionally drawn to scale; the focus is on illustrating the spirit of the invention.

[0022] Figure 1 This is a three-dimensional structural diagram of an automatic optical lens polishing machine;

[0023] Figure 2 This is a top view of an automatic optical lens polishing machine;

[0024] Figure 3 It is a 3D view of the assembly of the circular pallet and the support frame;

[0025] Figure 4 This is a three-dimensional sectional view of the limit fixture;

[0026] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0027] Figure 6 This is an exploded view of the limit clamp.

[0028] In the diagram: 1. Polishing table; 11. Turntable; 12. Polishing pad; 13. Column; 14. Support bracket; 141. Support ring; 15. Drive gear ring; 2. Limiting clamp; 3. Circular tray; 31. Annular groove; 32. Liquid inlet connector; 4. Spray ring; 41. Nozzle; 42. Rotary bearing; 43. Driven gear ring; 5. Base ring; 51. Slot; 52. Guide ring; 6. Lens chuck; 61. Insert block; 62. Guide pin; 63. Clamping block; 64. Spring; 65. Clamping block pad; 66. Spring plate; 7. Connecting ring; 8. Lens. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1 and Figure 2 As shown, an automatic optical lens polishing machine includes a polishing table 1 and three limiting clamps 2 mounted on the polishing table 1. The three limiting clamps 2 serve as three positions defining the processing locations of the lenses 8, and cooperate with the polishing table 1 to perform polishing at three stations, achieving multi-station synchronous polishing processing. This automatic optical lens polishing machine provided by the present invention is specifically designed for the planar polishing of relatively thick, large-diameter circular planar lenses. Such lenses 8 include, for example, planar windows, optical flats, and planar reflectors. In this embodiment, the diameter of the lenses 8 suitable for processing is between 800mm and 1500mm.

[0032] like Figure 1 As shown, the polishing table 1 has a circular collection tank at its center for collecting polishing fluid. A cylindrical turntable 11 is coaxially mounted and rotatably installed in the collection tank. A circular polishing pad 12 is glued to the upper surface of the turntable 11, ensuring that the polishing pad 12 is completely flat and tightly attached to the upper surface of the turntable 11. The turntable 11 can also be vacuum-adsorbed to ensure the tightness between the polishing pad 12 and the turntable 11. Depending on the polishing requirements of the lens 8, the polishing pad 12 can be made of different materials, such as polyurethane. It should be emphasized that the polishing table 1 can refer to existing similar structures, and structural details, including the drive power source of the turntable 11, are not described in detail here.

[0033] like Figure 1 , Figure 2 and Figure 3As shown, a column 13 is also vertically fixed in the liquid collection tank. The column 13 extends upward along the central axis of the turntable 11 and passes through the polishing pad 12. A support frame 14 is fixed to the column 13 by bolts. The support frame 14 is horizontally arranged above the polishing pad 12. Three support rings 141 are evenly distributed around the central axis on the support frame 14. Three limiting clamps 2 are assembled one-to-one on the three support rings 141, so that the limiting clamps 2 are suspended above the polishing pad 12. This avoids the bottom end of the limiting clamps 2 from contacting the polishing pad 12, thereby preventing unnecessary wear on the surface of the polishing pad 12 and indirectly improving the polishing accuracy.

[0034] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the limiting clamp 2 includes a circular tray 3 embedded in the support ring 141. The circular tray 3 and the support ring 141 are connected by flanges and fixed by bolts. The annular tray 3 has an annular groove 31 coaxially arranged at its bottom inner end. A spray ring 4 is embedded in the annular groove 31. The spray ring 4 has an annular U-shaped groove structure, and the U-shaped opening of the spray ring 4 faces the side wall of the annular tray 3. A rotary bearing 42 is mounted on the upper end face of the spray ring 4. The outer ring of the rotary bearing 42 is bolted to the flange of the annular tray 3 via a flange. The upper end face of the spray ring 4 is welded to the inner ring of the rotary bearing 42. The spray ring 4 is in rotatable contact with the annular groove 31, and a sealing gasket layer is covered inside the annular groove 31 to enhance the sealing at the rotatable contact position with the spray ring 4. The spray ring 4 forms a sealed annular cavity with the annular tray 3 at the annular groove 31 through the rotary bearing 42. A liquid inlet connector 32 communicating with the annular cavity is opened on the side wall of the annular tray 3. The liquid inlet connector 32 is close to the column 13 and points towards the center of the column 13. Multiple evenly distributed nozzles 41 are distributed circumferentially on the side wall of the spray ring 4. The three limiting clamps 2 can be set in a synchronous liquid supply layout. Specifically, a central tube can be installed vertically along the central axis on the column 13. The bottom end of the central tube is connected to the outlet of the polishing liquid supply tank. A pipe connector with three branch connectors can be installed at the top end of the central tube and connected to the three liquid inlet connectors 32 through the three branch pipes. After the polishing liquid enters the annular cavity from the liquid inlet connector 32, it can be sprayed out from the multiple circumferentially distributed nozzles 41. When the spray ring 4 is not rotated, the spray direction of the nozzles 41 is directly pointing to the center of the spray ring 4. In order to ensure that the spray volume of the multiple nozzles 41 is basically the same, the polishing liquid adopts pressurized spray treatment.

[0035] like Figure 1 and Figure 6As shown, three limiting clamps 2 are circumferentially distributed around the central axis of the turntable 11; a driven gear ring 43 is welded and fixed on the inner ring of the rotary bearing 42; a drive gear ring 15 is coaxially mounted on the turntable 11, and the drive gear ring 15 is fixed to the upper end face of the turntable 11 through a gear ring frame, and the driven gear ring 43 meshes with the drive gear ring 15; it should be added that the gear ring frame has multiple windows distributed circumferentially, which does not affect the return flow of polishing fluid to the accumulation tank.

[0036] like Figure 4 , Figure 5 and Figure 6 As shown, a base ring 5 is coaxially fixed to the driven gear ring 43 by screws; multiple slots 51 are evenly distributed circumferentially on the inner wall of the base ring 5, with the upper and lower ends of the slots 51 being open and closed respectively; a lens clamp 6 for clamping the lens 8 is inserted into each slot 51; the lens clamp 6 includes a plug block 61 that engages with the slot 51, and a guide pin 62 is slidably mounted on the plug block 61 radially along the base ring 5, with the guide pin 62 keyed to the plug block 61; a clamping block 63 is welded to one end of the guide pin 62, and the clamping block 63 extends downward into the slot. Inside the spray ring 4, a spring 64 is fitted on the guide pin 62, with both ends of the spring 64 fixed to the insert block 61 and the clamping block 63 respectively. A clamping pad 65, which is flexibly clamped to the side wall of the lens 8, is fixed to the clamping block 63 by screws. The clamping pad 65 is made of rubber. The clamping end face of the clamping pad 65 facing the center of the spray ring 4 is divided into an inclined section and a vertical section from top to bottom. The inclined section and the vertical section are connected by an arc. The inclined section gradually slopes upwards and towards the center of the spray ring 4 from the connection point with the vertical section, and the relative angle between the inclined section and the vertical section is 5°.

[0037] It should be noted that, in this invention, in order to adapt to the polishing of lenses 8 of various sizes, the lens chuck 6 and the base ring 5 are detachably installed, which facilitates the disassembly and separation of the lens chuck 6 and the base ring 5. The base ring 5, as the base for mounting the lens chuck 6, defines the clamping size range of multiple lens chucks 6. Therefore, multiple base rings 5 ​​can be equipped according to various common lens sizes 8 to facilitate the quick assembly between the lens chuck 6 and the base ring 5 before polishing. Obviously, the smaller the diameter of the lens 8, the fewer lens chucks 6 need to be assembled.

[0038] Before polishing, the base ring 5, which is compatible with the size of the lens 8, needs to be replaced, and the lens chuck 6 needs to be assembled with it. The lens 8 to be polished can be placed directly on the polishing pad 12 and between multiple lens chucks 6. Under the lateral clamping force provided by the spring 64, the lens chuck 6 is clamped to the side wall of the lens 8 by the clamping pad 65, realizing the circumferential lateral clamping constraint of the lens 8. The inclined section and the vertical section of the clamping pad 65 simultaneously clamp and contact the side wall of the lens 8. The inclined section is clamped at the upper edge of the lens 8. The vertical section provides the main lateral clamping force on the lens 8 in the horizontal direction. The inclined section provides the main lateral clamping force on the lens 8 in the horizontal direction. The other part of the lens 8 has a lateral clamping force and provides downward pressure on the lens 8 in the vertical direction; the clamping pad 65 avoids rigid contact with the side wall of the lens 8, so there is no risk of edge chipping of the lens 8, nor is there a problem of impurities being introduced due to powder falling onto the polishing pad 12 due to wear of the side wall of the lens 8; the lateral clamping of the lens 8 by multiple circumferentially evenly distributed lens chucks 6 avoids eccentric force and provides downward pressure, while avoiding the problem of uneven adhesion between the lens 8 and the polishing pad 12 due to eccentric force on the lens 8 and the reliance on its own weight for placement and adhesion, thus improving the flatness and adhesion between the lens 8 and the polishing pad 12.

[0039] It should be noted that the clamping pad 65 is detachable, and the inclined section is mainly clamped at the upper edge of the lens 8. When the thickness of the lens 8 is different, the appropriate clamping pad 65 can be replaced as needed to ensure that the inclined section can achieve the effect of downward clamping.

[0040] After positioning the lens 8, start the turntable 11. The turntable 11 drives the polishing pad 12 to rotate, drives the gear ring 15 to rotate with the turntable 11 and drives the three driven gear rings 43 to rotate synchronously, causing the spray ring 4 to rotate. The polishing liquid is sprayed out from the nozzle 41 along with the spray ring 4. The base ring 5 rotates with the driven gear ring 43 and drives the lens 8 to rotate in the clamped state. The lens 8 is polished in the state of the revolution of the polishing pad 12 and the rotation of the lens 8. After polishing is completed, the lens 8 can be taken out from the limiting fixture 2.

[0041] After the lens 8 is clamped, it is located at the center of the spray ring 4. Multiple nozzles 41 are evenly distributed around the lens 8, so that the polishing liquid can be evenly sprayed around the lens 8 through the multiple nozzles 41. The rotation of the spray ring 4 further improves the uniformity of the polishing liquid distribution around the lens 8, so that the polishing liquid can flow from the periphery to the bottom of the lens 8, thereby maximizing the uniformity of the polishing liquid distribution on the mirror surface to ensure uniform polishing. This solves the problem of uneven distribution of polishing liquid in existing equipment that relies on centrifugal force diffusion.

[0042] In addition, the lens 8 is driven to rotate by the turntable 11, so that the lens 8 is freed from passive rotation polishing. This solves the problem of insufficient rotation stability caused by uncontrollable force factors during passive rotation, and can achieve stable rotation polishing.

[0043] like Figure 4 , Figure 5 and Figure 6 As shown, the base ring 5 is also equipped with an adjustment assembly for synchronously adjusting the clamping force of multiple lens chucks 6 on the lens 8; the adjustment assembly includes a connecting ring 7; a guide ring 52 is welded to the top of the base ring 5, and the connecting ring 7 is vertically slidably mounted in the guide ring 52 with a key; an adjustment screw is vertically rotatably mounted on the base ring 5, and the connecting ring 7 is threaded onto the adjustment screw; it is optional to use the adjustment screw to drive the connecting ring 7 to slide in the guide ring 52, and the adjustment screw is not shown in the attached figure. The lens chuck 6 also includes a spring plate 66 welded to the top of the clamping block 63, and multiple lens chucks 6 are all fixedly connected to the connecting ring 7 by screws through the spring plate 66; by vertically sliding the connecting ring 7, the connecting ring 7 pushes and pulls the clamping block 63 through the spring plate 66, causing the guide pin 62 to slide, thereby finely adjusting the clamping force of the clamping block pad 65 on the side wall of the lens 8. The angle between the inclined and vertical sections of the clamping pad 65 is relatively small. When the inclined section is clamped, its vertical downward force is also small, resulting in only a slight pressure on the lens 8. This slight pressure is solely to ensure a tight fit between the lens 8 and the polishing pad 12. When polishing lenses 8 of different weights, the side clamping force can be appropriately reduced for heavier lenses 8 to decrease downward pressure, while the side clamping force can be appropriately increased for lighter lenses 8. Furthermore, since the clamping block 63 and the insert block 61 are connected by a spring 64, and the clamping block 63 and the connecting ring 7 are connected by a spring sheet 66, and the clamping pad 65 itself is made of a flexible material, the lens chuck 6 can elastically float in the radial direction of the lens 8, effectively preventing overload on the lens 8.

[0044] It should be added that the series ring 7 is installed in conjunction with the base ring 5. When the base ring 5 is replaced, the series ring 7 needs to be replaced at the same time.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "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 only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0047] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a manner common to the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of the present invention, or equivalent embodiments with equivalent changes, do not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. An automatic polishing machine for optical lenses, characterized in that, include: A polishing table, on which a turntable is mounted, and a polishing pad is fixed on the upper surface of the turntable. Multiple limiting clamps are fixed on the polishing table and located above the polishing pad. Each limiting clamp includes a horizontally arranged circular tray. A spray ring is coaxially rotatably mounted on the inner wall of the circular tray. The spray ring and the circular tray together form an annular cavity for introducing polishing fluid. Multiple nozzles are circumferentially distributed on the spray ring to spray polishing fluid from the annular cavity to the center of the spray ring. A base ring is coaxially fixed on the spray ring. Multiple lens chucks are detachably mounted on the base ring and distributed circumferentially. The lens chucks extend downward into the ring of the spray ring and are used to clamp the lens. When the lens is circumferentially clamped between the multiple lens chucks, the lens chucks exert downward pressure on the lens. The base ring is also equipped with an adjustment component for synchronously adjusting the clamping force of the multiple lens chucks on the lens. Multiple limit clamps are circumferentially distributed around the central axis of the turntable; a slewing bearing is fixed to the upper end face of the spray ring, and the spray ring is rotatably mounted on the inner wall of the circular tray through the slewing bearing; a driven gear ring is fixed on the slewing bearing; a drive gear ring is coaxially fixed on the turntable, and the driven gear ring meshes with the drive gear ring. The base is provided with slots distributed circumferentially to correspond one-to-one with the lens clamps; the lens clamps include insert blocks that are inserted into the slots. The lens clamp also includes a guide pin that is slidably mounted on the insert block along the base ring. One end of the guide pin is fixed with a clamping block, and the clamping block extends downward into the ring of the spray ring. The clamping block and the insert block are elastically connected in the axial direction of the guide pin. When the turntable rotates, the spray ring rotates on its own, and the polishing liquid is sprayed out from the nozzle along with the rotating spray ring. The spray ring indirectly drives the lens to rotate and polish through the base ring and the lens chuck.

2. The automatic optical lens polishing machine according to claim 1, characterized in that: A vertical column extending upward through the turntable is fixed on the polishing table, and a horizontal support frame is fixed on the column; multiple limiting clamps are fixed on the support frame via circular trays.

3. The automatic optical lens polishing machine according to claim 1, characterized in that: The clamping block is detachably fixed with a clamping block pad that flexibly clamps and contacts the side wall of the lens. The clamping end face of the clamping block pad facing the center of the spray ring is divided into an inclined section and a vertical section from top to bottom. The inclined section gradually slopes upwards towards the center of the spray ring from the connection point with the vertical section.

4. The automatic optical lens polishing machine according to claim 1, characterized in that: The adjustment assembly includes a series ring that slides vertically with the base ring; a spring plate is fixed to the top of the clamping block; and multiple lens clamps are fixedly connected to the series ring via spring plates.

5. An automatic optical lens polishing machine according to claim 1, characterized in that: The circular tray has an annular groove coaxially arranged inside the ring; the spray ring is embedded in the annular groove and rotates in contact with the annular groove.

6. The automatic optical lens polishing machine according to claim 4, characterized in that: The top of the base ring is provided with a guide ring, and the series rings are keyed together and vertically slidably installed in the guide ring.

7. An automatic optical lens polishing machine according to claim 5, characterized in that: The spray ring has an annular U-shaped groove structure, and the U-shaped opening of the spray ring faces the side wall of the annular tray. The side wall of the annular tray is provided with a liquid inlet connector that communicates with the annular cavity.

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