High-precision cutting device for lens finished products

By using a lens adsorption device that balances liquid pressure within the water storage bag and detects negative pressure, the problem of cutting accuracy caused by changes in the curvature of the lens surface is solved, achieving high-precision and safe lens cutting.

CN121893345APending Publication Date: 2026-04-21WENZHOU OUHAI HENGLI GLASSES EQUIP FACTORY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WENZHOU OUHAI HENGLI GLASSES EQUIP FACTORY
Filing Date
2026-02-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Traditional lens adsorption devices are difficult to adapt to the slight curvature changes on the lens surface, resulting in low cutting accuracy and problems such as uneven force, local suspension, or overall tilting.

Method used

The system automatically balances the pressure of the adsorption tube by using liquid pressure inside the water storage bag, combined with negative pressure detection and clamping mechanism, to achieve adaptive fitting to the curved surface of the lens, ensuring uniform adsorption and real-time monitoring of air pressure, forming a dual fixation of surface adsorption and edge clamping.

Benefits of technology

It improves the positional stability and consistency of the lens before cutting, reduces the risk of minute displacements, ensures processing accuracy and safety, and enhances the reliability of cutting.

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Patent Text Reader

Abstract

The high-precision cutting device for the lens finished product comprises a cutting piece body, and a locking assembly is arranged on the cutting piece body and used for locking a lens to be cut; the locking assembly comprises an adsorption mechanism arranged on the cutting piece body and used for adsorbing and fixing a lens placed on the locking assembly. The locking assembly comprises a clamping mechanism arranged on the cutting piece body. According to the high-precision cutting device for the lens finished product, stress of all the adsorption pipes is balanced through the pressure of liquid in the water storage bag, it is guaranteed that all the adsorption points can obtain uniform supporting force no matter how the surfaces of the lenses are irregular, and therefore the position stability and consistency of the lenses before cutting are guaranteed, and the cutting quality of the lenses is improved. And then the first driving piece drives the limiting frame to move and be tightly attached to the adsorption pipe, accurate locking of the position of the balanced adsorption pipe is achieved, displacement in follow-up operation is prevented, and the machining precision is ensured.
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Description

Technical Field

[0001] This application relates to the technical field of lens processing, and in particular to a high-precision cutting device for finished lenses. Background Technology

[0002] In fields such as optical components, consumer electronics (e.g., mobile phone camera lenses, AR / VR lenses), medical devices, and semiconductors, the processing quality of high-precision lenses directly determines the imaging performance and reliability of the final product. Lens cutting, as a critical upstream process, demands extremely high precision in positioning, surface integrity, and edge quality. To ensure a stable cutting process, the lens must be reliably fixed before processing to prevent micron-level displacement or vibration under the influence of high-speed rotating cutters or lasers; otherwise, it can easily lead to edge chipping, cracks, dimensional deviations, or even the complete scrapping of the lens.

[0003] Currently, the industry generally uses vacuum adsorption to fix lenses. However, traditional adsorption devices usually use rigid flat suction cups or fixed multi-point suction nozzles, which are difficult to adapt to the slight curvature changes, thickness tolerances or aspherical contours on the lens surface. When the lens surface does not fit completely with the adsorption surface, some adsorption points will not be able to form an effective negative pressure due to poor contact, resulting in uneven force, local suspension or overall tilting, which seriously affects the cutting accuracy. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, one objective of this application is to provide a high-precision cutting device for finished lenses, which automatically balances the force on each adsorption tube by means of liquid pressure in the water storage bag, so that the adsorption plate adapts to the curved surface of the lens under the action of gravity, ensuring uniform contact of the adsorption points, using negative pressure to achieve firm adsorption, and using the detection plate and detection cylinder to monitor the air pressure in real time, thereby achieving the effect of optimizing the cutting accuracy.

[0006] To achieve the above objectives, a first aspect of this application provides a high-precision cutting device for finished lenses, comprising a cutting body, a locking assembly on the cutting body for locking the lens to be cut; the locking assembly includes an adsorption mechanism on the cutting body for adsorbing and fixing the lens placed on the locking assembly; the locking assembly includes a clamping mechanism on the cutting body for clamping and fixing the lens placed on the locking assembly; the adsorption mechanism includes a mounting plate inside the cutting body; the mounting plate is provided with a plurality of adsorption tubes; a constant element is provided at the bottom of the plurality of adsorption tubes for adaptively adjusting the height of the plurality of adsorption tubes; a negative pressure detection element is provided inside the plurality of adsorption tubes for detecting the negative pressure state of the plurality of adsorption tubes during operation.

[0007] In addition, the high-precision cutting device for finished lenses proposed in this application may also have the following additional technical features: In one embodiment of this application, the adsorption mechanism further includes an adsorption plate rotatably disposed at the top of the corresponding adsorption tube; a support plate is fixedly installed on the surface of each of the plurality of adsorption tubes; a push spring is fixedly installed on the top surface of each of the plurality of support plates; a negative pressure tube is connected to each of the plurality of adsorption tubes, one end of the negative pressure tube is connected to the negative pressure component, and a pressure valve is provided at the top of each of the plurality of adsorption tubes.

[0008] In one embodiment of this application, the constant element includes a water storage bag mounted on the bottom surface of the mounting plate via a fixing box; a drag tray is provided at the connection between the water storage bag and the adsorption tube; a limit frame is slidably provided on the bottom surface of the mounting plate; and a first driving element is fixedly installed on one side of the limit frame.

[0009] In one embodiment of this application, one end of the first driving member is connected to the mounting plate, and the limiting frame is provided with a plurality of positioning rods, which are disposed on one side of the corresponding adsorption tube, and a stabilizing pad is provided at the contact point between the plurality of positioning rods and the adsorption tube.

[0010] In one embodiment of this application, the negative pressure detection element includes a detection cylinder installed inside the adsorption tube; a detection disc is slidably sealed inside the detection cylinder; a detection rod is fixedly installed on the detection disc; a support frame is fixedly installed on the inner wall of the detection cylinder; a first elastic element is sleeved on the surface of the detection rod; and an indicator light is installed on the mounting plate on one side of the corresponding adsorption tube.

[0011] In one embodiment of this application, the detection rod is slidably mounted on the support frame, and the indicator light is controlled by the detection cylinder and the detection disc.

[0012] In one embodiment of this application, the clamping mechanism includes a plurality of movable slots formed on the mounting plate; a clamping plate is slidably disposed in each of the plurality of movable slots; a pull rope is fixedly installed on each of the plurality of clamping plates; a plurality of sealing cavities are formed in the mounting plate; a sealing plate is slidably disposed in each of the plurality of sealing cavities; an elastic band is fixedly installed in each of the plurality of movable slots, and one end of the elastic band is fixedly connected to the surface of the corresponding clamping plate.

[0013] In one embodiment of this application, the pull rope is slidably disposed on the clamping plate, and one end of the pull rope is fixedly connected to the surface of the sealing plate, and a plurality of clamping plates are distributed around a plurality of adsorption tubes.

[0014] In one embodiment of this application, a plurality of control valves are fixedly mounted on the mounting plate, and the plurality of control valves are connected to the corresponding sealing cavities.

[0015] In one embodiment of this application, a placement plate is fixedly installed on the surface of the mounting plate and on the side corresponding to the moving groove; a limiting airbag is fixedly installed on the surface of the placement plate; and flow-limiting holes are formed at both ends of the limiting airbag.

[0016] The advantages of the high-precision cutting apparatus for finished lenses according to the embodiments of this application are as follows: (1) By using the pressure of the liquid inside the water storage bag to balance the force on each adsorption tube, it is ensured that no matter how irregular the surface of the lens is, each adsorption point can obtain uniform support force, thereby ensuring the stability and consistency of the lens position before cutting. Then, the first driving component drives the limiting frame to move and fit tightly with the adsorption tube, thereby achieving precise locking of the balanced adsorption tube position, preventing displacement in subsequent operations, and ensuring processing accuracy.

[0017] (2) The adsorption plate automatically adjusts its angle under the action of gravity to fit the curved surface of the lens as closely as possible, which increases the adsorption area and stability, reduces the risk of adsorption failure due to poor contact, and achieves firm adsorption of the lens by generating negative pressure. The air pressure changes are monitored in real time with the help of the detection plate and detection cylinder. Once there is air leakage or unstable adsorption, the abnormality can be detected immediately and the staff can be notified by the indicator light to readjust, thus ensuring the safety and reliability of the operation.

[0018] (3) By using the negative pressure adsorption of the adsorption mechanism, the negative pressure linkage sealing cavity, sealing plate, pulling rope and clamping plate are used to apply a gentle and uniform edge clamping force from all sides of the lens to form a double fixation of "surface adsorption + edge clamping", which effectively suppresses any tiny displacement of the lens during cutting.

[0019] (4) By independently controlling the control valves on each side, the clamping force of the corresponding clamping plate can be selectively released during the cutting process. The clamping plate is pulled back by the elastic band to remove it from the edge of the lens and avoid interference with the cutting blade. The remaining uncut sides remain clamped to ensure the overall stability of the lens and further improve the accuracy of lens cutting.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1This is a schematic diagram of the structure of a high-precision cutting apparatus for finished lenses according to an embodiment of this application; Figure 2 This is a perspective view of a locking component according to an embodiment of this application; Figure 3 This is a perspective view of a mounting plate according to an embodiment of this application; Figure 4 According to one embodiment of this application Figure 3 Enlarged view of point A in the middle; Figure 5 This is a side view of a mounting plate according to one embodiment of this application; Figure 6 This is a partial cross-sectional view of a mounting plate according to one embodiment of this application; Figure 7 This is a partial cross-sectional view of an adsorption tube according to an embodiment of this application.

[0022] As shown in the figure: 10. Cutting body; 20. Locking assembly; 201. Adsorption mechanism; 2011. Mounting plate; 2012. Adsorption tube; 2013. Adsorption plate; 2014. Support plate; 2015. Push spring; 2016. Negative pressure tube; 2017. Pressure valve; 202. Clamping mechanism; 2021. Moving groove; 2022. Clamping plate; 2023. Pull rope; 2024. Sealing cavity; 2025. 2026. Sealing plate; 2027. Elastic band; 2028. Control valve; 2029. Placement plate; 2020. Restricting airbag; 20210. Flow limiting orifice; 203. Constant element; 2031. Water storage bag; 2032. Limiting frame; 2033. First driving element; 204. Negative pressure detection element; 2041. Detection cylinder; 2042. Detection disc; 2043. Detection rod; 2044. Support frame; 2045. First elastic element. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0024] The high-precision cutting apparatus for finished lenses according to embodiments of this application will now be described with reference to the accompanying drawings.

[0025] like Figures 1-7As shown, the high-precision cutting device for finished lenses according to an embodiment of this application includes a cutting body 10, on which a locking component 20 is provided for locking the lens to be cut; the locking component 20 includes an adsorption mechanism 201 provided on the cutting body 10 for adsorbing and fixing the lens placed on the locking component 20; the locking component 20 includes a clamping mechanism 202 provided on the cutting body 10 for clamping and fixing the lens placed on the locking component 20; the adsorption mechanism 201 includes a mounting plate 2011 provided inside the cutting body 10; a plurality of adsorption tubes 2012 are provided on the mounting plate 2011; a constant element 203 is provided at the bottom of the plurality of adsorption tubes 2012 for adaptively adjusting the height of the plurality of adsorption tubes 2012; a negative pressure detection element 204 is provided inside the plurality of adsorption tubes 2012 for detecting the negative pressure state of the plurality of adsorption tubes 2012 during operation.

[0026] In one embodiment of this application, such as Figure 5 and Figure 7 As shown, the adsorption mechanism 201 further includes an adsorption disk 2013 rotatably disposed at the top of the corresponding adsorption tube 2012; a support disk 2014 is fixedly installed on the surface of each of the multiple adsorption tubes 2012; a push spring 2015 is fixedly installed on the top surface of each of the multiple support disks 2014; a negative pressure pipe 2016 is connected to each of the multiple adsorption tubes 2012, one end of the negative pressure pipe 2016 is connected to the negative pressure component, and a pressure valve 2017 is provided at the top of each of the multiple adsorption tubes 2012.

[0027] It should be noted that the pressure valve 2017 is located between the adsorption tube 2012 and the adsorption plate 2013. In the initial state, the pressure valve 2017 is in the closed state. Only when the lens is placed on the corresponding adsorption plate 2013 and the lens presses down on the adsorption plate 2013 will the pressure valve 2017 be triggered to open, so that the corresponding adsorption plate 2013 generates negative pressure, while the other adsorption plates 2013 are in the closed state.

[0028] In one embodiment of this application, such as Figure 5 As shown, the constant component 203 includes a water storage bag 2031 mounted on the bottom surface of the mounting plate 2011 via a fixed box; a drag tray is provided at the connection between the water storage bag 2031 and the adsorption tube 2012; a limit frame 2032 is slidably provided on the bottom surface of the mounting plate 2011; a first driving component 2033 is fixedly installed on one side of the limit frame 2032.

[0029] It should be noted that the first driving component 2033 is an electric telescopic rod that can extend and retract, thereby driving the limiting frame 2032 to move. In the initial state, the limiting frame 2032 is not in contact with the adsorption tube 2012. The first driving component 2033 can drive the limiting frame 2032 to fit tightly against the adsorption tube 2012, thereby achieving the purpose of positioning the adsorption tube 2012. At the same time, the surface of the adsorption tube 2012 in contact with the limiting frame 2032 is a rough surface, which can improve the stability of the limiting frame 2032 in fixing the adsorption tube 2012.

[0030] It should be noted that when the lens is placed on the adsorption plate 2013, the contact pressure on the adsorption plate at different positions is not consistent because the lens itself may have slight warping, uneven thickness, or an uneven surface. If the adsorption plate 2013 is rigidly fixed, some adsorption points may not be able to fully adhere to the lens, resulting in local air leakage and adsorption failure, which in turn affects the overall clamping stability.

[0031] It should be noted that the water storage bag 2031 is filled with an incompressible liquid (such as water or special hydraulic oil) to form a closed fluid chamber, which is flexibly connected to the bottom of each adsorption tube 2012. When a certain adsorption tube 2012 is subjected to a large downward pressure due to a local bulge of the lens, the adsorption tube will press down slightly, squeezing the local area of ​​the water storage bag connected to it, causing the liquid pressure at that point to increase. Since the liquid is fluid and incompressible, the pressure will be instantly and evenly transmitted to the entire interior of the water storage bag, thereby pushing the adsorption tubes 2012 in other positions to rise slightly or remain in balance, achieving dynamic force balance between each adsorption point.

[0032] In one embodiment of this application, such as Figure 5 As shown, one end of the first driving component 2033 is connected to the mounting plate 2011, and the limiting frame 2032 is provided with a plurality of positioning rods. The plurality of positioning rods are arranged on one side of the corresponding adsorption tube 2012, and a stabilizing pad is provided at the contact point between the plurality of positioning rods and the adsorption tube 2012.

[0033] It should be noted that the side of the stabilizing pad closest to the adsorption tube 2012 is concave arc-shaped. This increases the contact area between the positioning rod and the adsorption tube 2012 when they come into contact, thus optimizing the stability of fixing the adsorption tube 2012.

[0034] In one embodiment of this application, such as Figure 7As shown, the negative pressure detection element 204 includes a detection cylinder 2041 installed inside the adsorption tube 2012; a detection disk 2042 is slidably sealed inside the detection cylinder 2041, and a detection rod 2043 is fixedly installed on the detection disk 2042; a support frame 2044 is fixedly installed on the inner wall of the detection cylinder 2041; and a first elastic element 2045 is sleeved on the surface of the detection rod 2043.

[0035] It should be noted that the first elastic element 2045 is a spring, and the elastic force of the first elastic element 2045 is smaller than the adsorption force generated by the negative pressure tube 2016. Thus, when only the adsorption force of the negative pressure tube 2016 exists, the detection disc 2042 will move directly out of the detection cylinder 2041 under the action of the adsorption force. After the detection disc 2042 moves out, a certain area exists between the detection disc 2042 and the adsorption tube 2012. This area ensures normal airflow and prevents direct connection with the outside environment, thus preventing the adsorption tube 2012 from... The negative pressure inside 012 decreases significantly, thus affecting the adsorption force in other areas. During normal adsorption, that is, when the adsorption plate 2013 is adsorbing the lens normally, the negative pressure in the adsorption tube 2012 will drive the detection plate 2042 to move towards the adsorption plate 2013. The movement of the detection plate 2042 will also generate negative pressure on the side of the detection plate 2042 close to the adsorption plate 2013. Therefore, under the action of the negative pressure on the other side and the first elastic element 2045, the detection plate 2042 will not move out of the detection cylinder 2041.

[0036] An indicator light is installed on the mounting plate 2011 on one side of the corresponding adsorption tube 2012.

[0037] It should be noted that there are multiple indicator lights, each located on one side of the corresponding adsorption tube 2012. The indicator lights are controlled by the detection disc 2042 and the detection cylinder 2041. In the initial state, the detection disc 2042 is inside the detection cylinder 2041, and the two are in contact with each other, so the indicator lights will not light up. However, when the detection disc 2042 is removed from the detection cylinder 2041, the indicator lights will light up. Thus, the adsorption effect can be intuitively judged by observing the indicator lights.

[0038] In one embodiment of this application, such as Figure 7 As shown, the detection rod 2043 is slidably mounted on the support frame 2044, and the indicator light is controlled by the detection cylinder 2041 and the detection disc 2042.

[0039] Specifically, in the actual working process, when it is necessary to cut the lens, the lens is first placed above the adsorption plate 2013. The lens applies pressure to the adsorption plate 2013, causing the vertical adsorption plate 2013 to rotate under the action of gravity, so that the angle of the adsorption plate 2013 is close to the angle of the lens surface. At the same time, under the action of the lens's gravity, multiple adsorption tubes 2012 will squeeze the water storage bag 2031. The liquid pressure inside the water storage bag 2031 will equalize the force on each adsorption tube 2012, achieving dynamic force balance between each adsorption point. After the adsorption tubes 2012 are balanced, the output end of the first driving component 2033 is moved by the control switch, and then the first driving component 2033 drives the limiting frame 2032 to move, so that the limiting frame 2032 is tightly attached to the adsorption tube 2012, achieving the positioning of the balanced adsorption tube 2012. After positioning is completed, the operation of the adsorption components is controlled to generate negative pressure in the negative pressure tube 2016 and the corresponding adsorption tube 2012. Then, the adsorption plate 2013 at the top of the adsorption tube 2012 is used to adsorb and fix the lens. When negative pressure is generated inside the adsorption tube 2012, the detection plate 2042 slides along the detection cylinder 2041 under the action of air pressure, driving the detection rod 2043 to compress the first elastic element 2045, while keeping the pressure inside the detection cylinder 2041 balanced. When air leakage occurs during adsorption, the side near the adsorption plate 2013 cannot maintain stable air pressure, so the elastic force of the push spring 2015 cannot be balanced with the adsorption force of the adsorption tube 2012. As a result, under the action of adsorption force, the adsorption plate 2013 moves out of the detection cylinder 2041, thereby triggering the indicator light signal structure, making the indicator light light up, realizing the feedback of inaccurate adsorption, and allowing the staff to complete the adsorption of the lens again.

[0040] By utilizing the pressure of the liquid inside the water storage bag 2031 to balance the force on each adsorption tube 2012, it is ensured that each adsorption point can obtain uniform support force regardless of how irregular the lens surface is, thereby ensuring the stability and consistency of the lens position before cutting. Then, the first driving component 2033 drives the limiting frame 2032 to move and fit tightly against the adsorption tube 2012, realizing precise locking of the balanced adsorption tube position, preventing displacement in subsequent operations, and ensuring processing accuracy.

[0041] The adsorption plate 2013 automatically adjusts its angle under gravity to fit the curved surface of the lens as closely as possible, increasing the adsorption area and stability, and reducing the risk of adsorption failure due to poor contact. It achieves firm adsorption of the lens by generating negative pressure, and uses the detection plate 2042 and detection cylinder 2041 to monitor air pressure changes in real time. If air leakage or unstable adsorption occurs, the abnormality can be detected immediately and the staff can be notified by the indicator light to readjust, ensuring the safety and reliability of the operation.

[0042] In one embodiment of this application, such as Figure 3 , Figure 4 and Figure 6 As shown, the clamping mechanism 202 includes multiple movable slots 2021 formed on the mounting plate 2011; clamping plates 2022 are slidably disposed in each of the multiple movable slots 2021; pulling ropes 2023 are fixedly installed on each of the multiple clamping plates 2022; multiple sealing cavities 2024 are formed in the mounting plate 2011; sealing plates 2025 are slidably disposed in each of the multiple sealing cavities 2024; elastic bands 2026 are fixedly installed in each of the multiple movable slots 2021, and one end of each elastic band 2026 is fixedly connected to the surface of the corresponding clamping plate 2022.

[0043] It should be noted that the sealing cavity 2024 is connected to the negative pressure tube 2016. When a negative pressure is generated in the negative pressure tube 2016, a negative pressure will also be generated in the sealing cavity 2024. This causes the adsorption mechanism 201 to operate and the clamping mechanism 202 to operate synchronously. Since the clamping mechanism 202 is far away from the lens, while the adsorption mechanism 201 is in direct contact with the lens, the adsorption mechanism 201 first adsorbs the lens, and then the clamping mechanism 202 clamps and fixes the lens.

[0044] In one embodiment of this application, such as Figure 3 , Figure 4 and Figure 6 As shown, the pull rope 2023 is slidably disposed on the clamping plate 2022, and one end of the pull rope 2023 is fixedly connected to the surface of the sealing plate 2025. The plurality of clamping plates 2022 are distributed around the plurality of adsorption tubes 2012.

[0045] In one embodiment of this application, such as Figure 3 , Figure 4 and Figure 6 As shown, a plurality of control valves 2027 are fixedly installed on the mounting plate 2011, and the plurality of control valves 2027 are connected to the corresponding sealing cavity 2024.

[0046] It should be noted that each sealed cavity 2024 corresponds to two control valves 2027. When the cutting blade moves to the side corresponding to a sealed cavity 2024, one of the two control valves 2027 on that side disconnects the negative pressure extraction, while the other ensures normal air exchange between the sealed cavity 2024 and the outside. This allows the normal pressure inside the sealed cavity 2024 to be restored, enabling the clamping plate 2022 to quickly reset. At the same time, when the clamping plate 2022 resets or clamps, it compresses the limiting airbag 2029, causing the gas inside the limiting airbag 2029 to gather at one end and be discharged through the flow limiting hole 20210. This prevents the clamping plate 2022 from colliding with the mounting plate 2011 or the lens when it resets or clamps, thereby ensuring the stability of the lens.

[0047] In one embodiment of this application, such as Figure 3 and Figure 4 As shown, a placement plate 2028 is fixedly installed on the surface of the mounting plate 2011 and on one side corresponding to the moving groove 2021; a limiting airbag 2029 is fixedly installed on the surface of the placement plate 2028; and flow limiting holes 20210 are opened at both ends of the limiting airbag 2029.

[0048] Specifically, relying solely on fixation will result in poor lens fixation, making it prone to slight movement during cutting and thus affecting cutting accuracy.

[0049] While the adsorption mechanism 201 is running, the negative pressure generated by its negative pressure pipe 2016 will also enter the sealing cavity 2024, causing a negative pressure to be generated in the sealing cavity 2024. Under the action of the negative pressure, the sealing plate 2025 will move. The displacement of the sealing plate 2025 is transmitted to the clamping plate 2022 through the pull rope 2023 fixedly connected to it. Finally, the clamping plate 2022 slides along the moving groove 2021 towards the center of the lens, thereby gently abutting against the edge of the lens from all sides to achieve clamping. When cutting, if it is necessary to cut one side of the lens, when the cutting blade on the cutting body 10 moves to one side of the lens, the control valve 2027 on that side can be controlled to prevent negative pressure gas from entering the sealing cavity 2024, while allowing external air to enter the sealing cavity 2024. In this way, the sealing cavity 2024 loses the pulling force on the sealing plate 2025. Then, under the action of the elastic band 2026, the clamping plate 2022 on the side to be cut is pulled so that the clamping plate 2022 does not contact the lens. When the cutting blade moves from one side to the other side, the sealing cavity 2024 on that side is restored to negative pressure by the control valve 2027, which can then pull the clamping plate 2022 to clamp the lens. Similarly, the clamping plate 2022 on the side to be cut no longer contacts the lens.

[0050] Based on the negative pressure adsorption of the adsorption mechanism 201, a gentle and uniform edge clamping force is applied from all sides of the lens by utilizing the negative pressure linkage sealing cavity 2024, sealing plate 2025, pulling rope 2023 and clamping plate 2022, forming a double fixation of "surface adsorption + edge clamping", which effectively suppresses any slight displacement of the lens during cutting.

[0051] By independently controlling the control valves 2027 on each side, the clamping force of the corresponding clamping plate 2022 can be selectively released during cutting. The elastic band 2026 pulls the clamping plate 2022 back, causing it to detach from the edge of the lens and avoid interference with the cutting blade. Meanwhile, the remaining uncut sides remain clamped, ensuring the overall stability of the lens and further improving the precision of lens cutting.

[0052] In summary, the high-precision cutting device for finished lenses in this application embodiment uses the pressure of the liquid inside the water storage bag 2031 to balance the force on each adsorption tube 2012, ensuring that each adsorption point can obtain uniform support force regardless of how irregular the lens surface is, thereby ensuring the positional stability and consistency of the lens before cutting. Then, the first driving member 2033 drives the limiting frame 2032 to move and fit tightly against the adsorption tube 2012, realizing precise locking of the balanced adsorption tube position, preventing displacement in subsequent operations, and ensuring processing accuracy.

[0053] In this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A high-precision cutting device for finished lenses, characterized in that, It includes a cutting body (10), on which a locking component (20) is provided for locking the lens to be cut; The locking assembly (20) includes an adsorption mechanism (201) disposed on the cutter body (10) for adsorbing and fixing the lens placed on the locking assembly (20); The locking assembly (20) includes a clamping mechanism (202) disposed on the cutting body (10) for clamping and fixing the lens placed on the locking assembly (20); The adsorption mechanism (201) includes a mounting plate (2011) disposed within the cutting body (10). The mounting plate (2011) is provided with multiple adsorption tubes (2012); A constant element (203) is provided at the bottom of the plurality of adsorption tubes (2012) for adaptively adjusting the height of the plurality of adsorption tubes (2012); A negative pressure detection element (204) is provided inside the plurality of adsorption tubes (2012) for detecting the negative pressure state of the plurality of adsorption tubes (2012) during operation.

2. The high-precision cutting device for finished lenses according to claim 1, characterized in that, The adsorption mechanism (201) further includes an adsorption disk (2013) that is rotatably disposed at the top of the adsorption tube (2012). Support plates (2014) are fixedly installed on the surface of each of the adsorption tubes (2012). Push springs (2015) are fixedly installed on the top surface of the plurality of support plates (2014). A negative pressure tube (2016) is connected to one of the adsorption tubes (2012), and one end of the negative pressure tube (2016) is connected to the negative pressure component; Pressure valves (2017) are provided at the top of each of the adsorption tubes (2012).

3. The high-precision cutting device for finished lenses according to claim 1, characterized in that, The constant element (203) includes a water storage bag (2031) mounted on the bottom surface of the mounting plate (2011) via a fixing box; A spreading disc is provided at the connection between the water storage bag (2031) and the adsorption tube (2012); A limit frame (2032) is slidably provided on the bottom surface of the mounting plate (2011); A first driving component (2033) is fixedly installed on one side of the limiting frame (2032).

4. The high-precision cutting device for finished lenses according to claim 3, characterized in that, One end of the first driving component (2033) is connected to the mounting plate (2011), and a plurality of positioning rods are provided on the limiting frame (2032). The plurality of positioning rods are located on one side of the corresponding adsorption tube (2012), and a stabilizing pad is provided at the contact point between the plurality of positioning rods and the adsorption tube (2012).

5. The high-precision cutting device for finished lenses according to claim 1, characterized in that, The negative pressure detection element (204) includes a detection cylinder (2041) installed inside the adsorption tube (2012). The detection cylinder (2041) has a sliding seal with a detection disc (2042). A detection rod (2043) is fixedly installed on the detection plate (2042); A support frame (2044) is fixedly installed on the inner wall of the detection cylinder (2041). The surface of the detection rod (2043) is fitted with a first elastic element (2045); An indicator light is installed on the mounting plate (2011) on one side of the corresponding adsorption tube (2012).

6. The high-precision cutting device for finished lenses according to claim 5, characterized in that, The detection rod (2043) is slidably mounted on the support frame (2044), and the indicator light is controlled by the detection cylinder (2041) and the detection disc (2042).

7. The high-precision cutting device for finished lenses according to claim 1, characterized in that, The clamping mechanism (202) includes a plurality of movable slots (2021) formed on the mounting plate (2011); Clamping plates (2022) are slidably disposed within each of the multiple movable slots (2021); Pull ropes (2023) are fixedly installed on each of the clamping plates (2022); The mounting plate (2011) has multiple sealing cavities (2024) inside. Each of the multiple sealing cavities (2024) is provided with a sealing plate (2025) that is slidably sealed. Each of the multiple movable slots (2021) is fixedly installed with an elastic band (2026), and one end of each elastic band (2026) is fixedly connected to the surface of the corresponding clamping plate (2022).

8. The high-precision cutting device for finished lenses according to claim 7, characterized in that, The pull rope (2023) is slidably disposed on the clamping plate (2022), and one end of the pull rope (2023) is fixedly connected to the surface of the sealing plate (2025). Multiple clamping plates (2022) are distributed around multiple adsorption tubes (2012).

9. The high-precision cutting device for finished lenses according to claim 7, characterized in that, Multiple control valves (2027) are fixedly installed on the mounting plate (2011), and the multiple control valves (2027) are connected to the corresponding sealing cavities (2024).

10. The high-precision cutting device for finished lenses according to claim 7, characterized in that, A placement plate (2028) is fixedly installed on the surface of the mounting plate (2011) and on the side corresponding to the moving slot (2021). A restraining airbag (2029) is fixedly installed on the surface of the placement plate (2028); The limiting airbag (2029) has flow-limiting holes (20210) at both ends.