A lens polishing device with protective function

Abstract

This utility model relates to the field of lens polishing technology, specifically disclosing a lens polishing device with protective function. It includes a circular lens, and the outside of the circular lens is equipped with a protective mechanism, a clamping drive mechanism, a lens limiting mechanism, and a chamfering polishing mechanism. The protective mechanism includes a protective box with an open front side. Two fixed plates are installed on the left end of the protective box, and an L-shaped plate is rotatably connected between the two fixed plates via a movable shaft. A closing plate is fixedly connected to the other end of the L-shaped plate. The magnetic sealing strip on the closing plate is attracted to the magnetic sealing strip on the protective box, thereby preventing polishing debris from splashing during subsequent processing and avoiding pollution of the surrounding environment. Multiple limiting rollers located directly to the left of the polishing strip provide reverse support force, counteracting the radial displacement of the circular lens that may be caused by the rightward force applied by the polishing strip. Thus, by configuring the lens limiting mechanism, the circular lens is effectively prevented from shifting due to lateral force during polishing, ensuring the accuracy of chamfering polishing.

Description

Technical Field

[0001] This utility model relates to the field of lens polishing technology, and specifically discloses a lens polishing device with protective function. Background Technology

[0002] In the field of optical lens processing, chamfering and grinding of circular planar lenses with a fixed diameter is an important process, especially suitable for mass production of lenses of the same specifications. These lenses are often used in protective equipment, optical instruments, and other fields. The accuracy of their edge chamfering directly affects installation compatibility and safety of use. Therefore, designing a grinding device that combines protective functions with a limiting mechanism is of great practical significance.

[0003] Existing lens chamfering and polishing devices use two opposing clamps to hold and fix the lens in place. A drive mechanism rotates the clamps and lens, and a movable polishing disc moves close to the lens edge, achieving chamfering through this relative motion. However, such devices have significant drawbacks: firstly, they lack effective protective mechanisms, allowing polishing shavings to fly everywhere and pollute the surrounding environment; secondly, they lack a dedicated lens limiting mechanism, relying solely on the clamping force of the clamps to resist lateral forces when the polishing disc contacts the lens, causing the lens to easily shift during polishing and affecting chamfering accuracy. Therefore, a lens polishing device with protective features is needed to solve these problems. Utility Model Content

[0004] This invention proposes a lens polishing device with protective function. By setting up a closed protective mechanism to block the flying of polishing debris and avoid polluting the surrounding environment, it also sets up a lens limiting mechanism to effectively prevent the circular lens from shifting due to lateral force during the polishing process, thus ensuring the accuracy of chamfer polishing.

[0005] This utility model is implemented as follows: a lens polishing device with protective function includes a circular lens, and the outside of the circular lens is provided with a protective mechanism, a clamping drive mechanism, a lens limiting mechanism and a chamfering polishing mechanism.

[0006] The protective mechanism includes a protective box with an open front side. Two fixed plates are installed on the left end of the protective box. An L-shaped plate is rotatably connected between the two fixed plates via a movable shaft. A closed plate is fixedly connected to the other end of the L-shaped plate. The front edge of the protective box and the rear end of the closed plate are magnetically connected by two magnetic sealing strips.

[0007] The clamping drive mechanism includes a lower clamping plate located inside the protective box. The protective box has a lifting plate inside. A first servo electric actuator is installed at the upper end of the protective box. A pressure sensor is installed between the output end of the first servo electric actuator and the lifting plate. The lower end of the lifting plate is fixedly connected to the box body. The lower end of the box body is rotatably connected to a turntable. The turntable is driven by a drive motor installed inside the box body. The lower end of the turntable is fixedly connected to an upper clamping plate. A first controller is installed at the upper end of the protective box.

[0008] The lens limiting mechanism includes a stabilizing plate fixedly connected to the left end of the inner wall of the protective box, and an arc-shaped frame fixedly connected to the right end of the stabilizing plate. Multiple limiting rollers that abut against the outer wall of the circular lens are rotatably connected inside the arc-shaped frame.

[0009] As a preferred embodiment of the protective lens polishing device of this utility model, the chamfering polishing mechanism includes a second servo electric actuator installed at the right end of the protective box. The output end of the second servo electric actuator extends into the interior of the protective box and is fixedly connected to a moving block. A V-groove is provided at the left end of the moving block. Two polishing strips symmetrically distributed vertically are installed on the inner wall of the V-groove. A second controller is installed at the right end of the protective box.

[0010] As a preferred embodiment of the protective lens polishing device of this utility model, the protective box is fixedly connected to a guide frame with a conical inner wall, and the lower end of the guide frame is fixedly connected to a discharge frame that penetrates the protective box.

[0011] As a preferred embodiment of the protective lens polishing device of this utility model, the upper end of the lifting plate is fixedly connected to two guide rods that penetrate the protective box and are slidably connected to the protective box, and the right end of the moving block is fixedly connected to two slide rods that penetrate the protective box and are slidably connected to the protective box.

[0012] As a preferred embodiment of the protective lens polishing device of this utility model, the first servo electric actuator is a worm gear type electric actuator.

[0013] As a preferred embodiment of the protective lens polishing device of this utility model, the inner wall of the protective box is fixedly connected with multiple steel columns, the other end of the multiple steel columns is fixedly connected with a support platform, the upper end of the support platform is equipped with a fixed column, and the lower clamping plate is rotatably connected to the upper end of the fixed column.

[0014] As a preferred embodiment of the protective lens polishing device of this utility model, the left and right ends of the protective box are fixedly connected with support bars, and the lower ends of the two support bars are fixedly connected with support frames with multiple mounting holes.

[0015] The beneficial effects of this utility model are:

[0016] 1. Place the circular lens to be ground on the upper end of the lower clamping plate, ensuring its edge contacts the multiple limiting rollers installed inside the arc-shaped frame for positioning, and ensuring its center is aligned with the centers of the lower and upper clamping plates. Then, activate the first servo electric actuator to lower the lifting plate, causing the housing, turntable, and upper clamping plate to descend synchronously. This allows the upper and lower clamping plates to clamp the circular lens from both sides. A pressure sensor monitors and feeds back the clamping force to the first controller in real time. The operation stops when a preset threshold is reached, ensuring uniform and moderate clamping force and a mechanical self-locking function. The operator rotates the sealing plate, causing the L-shaped plate to rotate around the movable shaft. This causes the magnetic sealing strip on the sealing plate to attract the magnetic sealing strip on the protective housing, thus preventing grinding debris from splashing during subsequent processing and avoiding environmental pollution.

[0017] 2. The drive motor is started, causing the turntable and upper clamping plate to rotate at high speed. Friction drives the clamped circular lens to rotate with the lower clamping plate, providing a continuous processing surface for edge chamfering. When the chamfering mechanism grinds the edge of the circular lens, multiple limiting rollers located directly to the left of the grinding strip provide reverse support force, counteracting the radial displacement of the circular lens that may be caused by the rightward force applied by the grinding strip. Simultaneously, the limiting rollers can rotate to reduce friction with the circular lens. Thus, by configuring a lens limiting mechanism, the circular lens is effectively prevented from shifting due to lateral force during grinding, ensuring the accuracy of the chamfering. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a front sectional view of the lens polishing device with protective function according to this utility model;

[0020] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a partial top sectional view of the present invention;

[0022] Figure 4 This is a partial structural diagram of the present invention;

[0023] Figure 5 This is a partial structural diagram of the present invention.

[0024] The markings in the diagram are: 1. Circular lens; 2. Protective box; 3. Fixed plate; 4. Movable shaft; 5. L-shaped plate; 6. Enclosed plate; 7. Magnetic sealing strip; 8. First controller; 9. Discharge frame; 10. Guide frame; 11. Steel column; 12. Support platform; 13. Fixed column; 14. Lower clamping plate; 15. First servo electric actuator; 16. Lifting plate; 17. Pressure sensor; 18. Box body; 19. Turntable; 20. Upper clamping plate; 21. Drive motor; 22. Stabilizing plate; 23. Arc frame; 24. Limiting roller; 25. Moving block; 26. Grinding strip; 27. Second servo electric actuator; 28. Second controller. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0026] Please see Figure 1-5 A lens polishing device with protective function includes a circular lens 1, and the outside of the circular lens 1 is provided with a protective mechanism, a clamping drive mechanism, a lens limiting mechanism and a chamfering polishing mechanism.

[0027] The protective mechanism includes a protective box 2 with an open front side. Two fixed plates 3 are installed on the left side of the protective box 2. An L-shaped plate 5 is rotatably connected between the two fixed plates 3 via a movable shaft 4. A closed plate 6 is fixedly connected to the other end of the L-shaped plate 5. The front edge of the protective box 2 and the rear end of the closed plate 6 are magnetically connected by two magnetic sealing strips 7.

[0028] The clamping drive mechanism includes a lower clamping plate 14 located inside the protective box 2. A lifting plate 16 is provided inside the protective box 2. A first servo electric push rod 15 is installed at the upper end of the protective box 2. A pressure sensor 17 is installed between the output end of the first servo electric push rod 15 and the lifting plate 16. A box body 18 is fixedly connected to the lower end of the lifting plate 16. A turntable 19 is rotatably connected to the lower end of the box body 18. The turntable 19 is driven by a drive motor 21 installed inside the box body 18. An upper clamping plate 20 is fixedly connected to the lower end of the turntable 19. A first controller 8 is installed at the upper end of the protective box 2.

[0029] The lens limiting mechanism includes a stabilizing plate 22 fixedly connected to the left end of the inner wall of the protective box 2, and an arc-shaped frame 23 fixedly connected to the right end of the stabilizing plate 22. Multiple limiting rollers 24 that abut against the outer wall of the circular lens 1 are rotatably connected inside the arc-shaped frame 23.

[0030] In this embodiment: When in use, the circular lens 1 to be polished is placed on the upper end of the lower clamping plate 14, and the edge of the circular lens 1 is made to contact the multiple limiting rollers 24 installed inside the arc frame 23, so as to position the circular lens 1. At this time, the center of the circular lens 1 is aligned with the center of the lower clamping plate 14 and the upper clamping plate 20 to avoid positional deviation during manual placement.

[0031] Subsequently, the first servo electric actuator 15 is activated by the first controller 8. Its output end pushes the lifting plate 16 to move vertically downward, causing the housing 18 and the lower turntable 19 and upper clamping plate 20 to descend synchronously. The upper clamping plate 20 cooperates with the lower clamping plate 14 to clamp the circular lens 1 from the upper and lower sides. At this time, the pressure sensor 17 monitors the pressure applied by the upper clamping plate 20 in real time and feeds the data back to the first controller 8. When the preset clamping force threshold is reached, the first controller 8 controls the first servo electric actuator 15 to stop moving, ensuring that the clamping force is uniform and moderate. Since the first servo electric actuator 15 adopts worm gear transmission and has a mechanical self-locking function, even if the power is cut off after clamping, the upper clamping plate 20 will not be displaced due to gravity or grinding vibration, ensuring clamping stability.

[0032] After the circular lens 1 is clamped, the operator rotates the sealing plate 6, which drives the L-shaped plate 5 to rotate around the movable shaft 4 between the two fixed plates 3, so that the magnetic sealing strips 7 installed on the sealing plate 6 and the protective box 2 respectively attract each other, forming a seal on the front opening of the protective box 2, thereby preventing the splashing of grinding debris during subsequent processing and avoiding pollution of the surrounding environment.

[0033] During the polishing stage, the first controller 8 starts the drive motor 21, whose output shaft drives the turntable 19 and the upper clamping plate 20 to rotate at high speed. The speed can be adjusted by the first controller 8. Since the upper clamping plate 20 and the lower clamping plate 14 clamp the circular lens 1 through friction, the circular lens 1 is driven to rotate with the lower clamping plate 14, providing a continuously rotating processing surface for edge chamfering polishing. The turntable 19 and the housing 18 are rotatably connected by bearings, and the fixed column 13 and the lower clamping plate 14 are rotatably connected by bearings.

[0034] The chamfering of the edge of the circular lens 1 is then achieved by the chamfering and grinding mechanism. At this time, multiple limiting rollers 24 are located directly to the left of the grinding strip 26. When the grinding strip 26 applies a lateral grinding force to the right, the limiting rollers 24 provide a reverse support force to counteract the radial displacement that the circular lens 1 may produce. Since the limiting rollers 24 can rotate, the friction with the circular lens 1 is reduced. In this way, by configuring the lens limiting mechanism, the circular lens 1 is effectively prevented from shifting due to lateral force during the grinding process, thus ensuring the chamfering and grinding accuracy.

[0035] As a technical optimization of this utility model, the chamfering and grinding mechanism includes a second servo electric push rod 27 installed at the right end of the protective box 2. The output end of the second servo electric push rod 27 extends into the interior of the protective box 2 and is fixedly connected to a moving block 25. A V-shaped groove is opened at the left end of the moving block 25. Two grinding strips 26 are installed on the inner wall of the V-shaped groove, which are symmetrically distributed vertically. A second controller 28 is installed at the right end of the protective box 2.

[0036] In this embodiment: the second servo electric actuator 27 is activated by the second controller 28, and its output end pushes the moving block 25 to move horizontally to the left, so that the two symmetrically distributed grinding strips 26 in the V-shaped groove at the left end of the moving block 25 gradually approach the edge of the circular lens 1. The V-shaped groove structure makes the two grinding strips 26 form a 45-degree angle with the upper and lower edges of the circular lens 1. Through the precise feed control of the second servo electric actuator 27, the chamfering of the edge of the circular lens 1 is achieved.

[0037] As a technical optimization of this utility model, a guide frame 10 with a conical inner wall is fixedly connected inside the protective box 2, and a discharge frame 9 that penetrates the protective box 2 is fixedly connected to the lower end of the guide frame 10.

[0038] In this embodiment: the debris and dust generated during the grinding process fall into the conical guide frame 10 inside the protective box 2 under the action of gravity. Since the inner wall of the guide frame 10 is a conical structure, the debris slides down the inclined surface to the discharge frame 9 at the lower end and is discharged to the external collection container through the discharge frame 9 to maintain the cleanliness of the processing environment.

[0039] As a technical optimization of this utility model, the upper end of the lifting plate 16 is fixedly connected with two guide rods that penetrate the protective box 2 and are slidably connected to the protective box 2, and the right end of the moving block 25 is fixedly connected with two slide rods that penetrate the protective box 2 and are slidably connected to the protective box 2.

[0040] In this embodiment: the lifting plate 16 is slidably connected to the protective box 2 through two guide rods to ensure that the upper clamping plate 20 moves vertically without deviation when it is raised or lowered; the moving block 25 is guided by two slide rods to ensure the trajectory accuracy of the grinding strip 26 when it is fed horizontally.

[0041] As a technical optimization of this utility model, the first servo electric actuator 15 is a worm gear type electric actuator.

[0042] In this embodiment: the first servo electric actuator 15 adopts worm gear transmission. When the clamping plate clamps the lens, the helix angle of the worm is less than the equivalent friction angle, forming a mechanical self-locking. Even if the power is cut off or the drive stops, the upper clamping plate 20 will not drop due to gravity or grinding reaction force, and will maintain the clamping state.

[0043] As a technical optimization of this utility model, the inner wall of the protective box 2 is fixedly connected with a plurality of steel columns 11, and the other end of the plurality of steel columns 11 is fixedly connected with a support platform 12. The upper end of the support platform 12 is equipped with a fixed column 13, and the lower clamping plate 14 is rotatably connected to the upper end of the fixed column 13.

[0044] In this embodiment: the steel column 11 connects the inner wall of the protective box 2 and the support platform 12 to form a rigid support frame. The support platform 12 supports the lower clamping plate 14 through the fixed column 13 to ensure its axial stability when rotating.

[0045] As a technical optimization of this utility model, the left and right ends of the protective box 2 are fixedly connected with support bars, and the lower ends of the two support bars are fixedly connected with support frames with multiple mounting holes.

[0046] In this embodiment: the protective box 2 is connected to the support frame through the support bars at the left and right ends. The mounting holes on the support frame can be fixed to the workbench or the ground with bolts, thereby fixing the device and improving the stability of use.

[0047] The working principle and usage process of this utility model are as follows: When in use, the circular lens 1 to be polished is placed on the upper end of the lower clamping plate 14, and the edge of the circular lens 1 is made to contact the multiple limiting rollers 24 installed inside the arc frame 23, so as to position the circular lens 1. At this time, the center of the circular lens 1 is aligned with the center of the lower clamping plate 14 and the upper clamping plate 20, avoiding positional deviation when manually placed.

[0048] Subsequently, the first servo electric actuator 15 is activated by the first controller 8. Its output end pushes the lifting plate 16 to move vertically downward, causing the housing 18 and the lower turntable 19 and upper clamping plate 20 to descend synchronously. The upper clamping plate 20 cooperates with the lower clamping plate 14 to clamp the circular lens 1 from the upper and lower sides. At this time, the pressure sensor 17 monitors the pressure applied by the upper clamping plate 20 in real time and feeds the data back to the first controller 8. When the preset clamping force threshold is reached, the first controller 8 controls the first servo electric actuator 15 to stop moving, ensuring that the clamping force is uniform and moderate. Since the first servo electric actuator 15 adopts worm gear transmission and has a mechanical self-locking function, even if the power is cut off after clamping, the upper clamping plate 20 will not be displaced due to gravity or grinding vibration, ensuring clamping stability.

[0049] After the circular lens 1 is clamped, the operator rotates the sealing plate 6, which drives the L-shaped plate 5 to rotate around the movable shaft 4 between the two fixed plates 3, so that the magnetic sealing strips 7 installed on the sealing plate 6 and the protective box 2 respectively attract each other, forming a seal on the front opening of the protective box 2, thereby preventing the splashing of grinding debris during subsequent processing and avoiding pollution of the surrounding environment.

[0050] During the polishing stage, the first controller 8 starts the drive motor 21, whose output shaft drives the turntable 19 and the upper clamping plate 20 to rotate at high speed. The speed can be adjusted by the first controller 8. Since the upper clamping plate 20 and the lower clamping plate 14 clamp the circular lens 1 through friction, the circular lens 1 is driven to rotate with the lower clamping plate 14, providing a continuously rotating processing surface for edge chamfering polishing. The turntable 19 and the housing 18 are rotatably connected by bearings, and the fixed column 13 and the lower clamping plate 14 are rotatably connected by bearings.

[0051] Then, the second servo electric actuator 27 is activated by the second controller 28. Its output end pushes the moving block 25 to move horizontally to the left, so that the two symmetrically distributed grinding strips 26 in the V-groove at the left end of the moving block 25 gradually approach the edge of the circular lens 1. The V-groove structure makes the two grinding strips 26 form a 45-degree angle with the upper and lower edges of the circular lens 1. Through the precise feed control of the second servo electric actuator 27, the chamfering of the edge of the circular lens 1 is achieved.

[0052] At this time, multiple limiting rollers 24 are located directly to the left of the grinding strip 26. When the grinding strip 26 applies a lateral grinding force to the right, the limiting rollers 24 provide a reverse support force to counteract the radial displacement that the circular lens 1 may produce. Since the limiting rollers 24 can rotate, the friction with the circular lens 1 is reduced. In this way, by configuring the lens limiting mechanism, the circular lens 1 is effectively prevented from shifting due to lateral force during the grinding process, thus ensuring the chamfering grinding accuracy.

[0053] The debris and dust generated during the grinding process fall into the conical guide frame 10 inside the protective box 2 under the action of gravity. Since the inner wall of the guide frame 10 is a conical structure, the debris slides down the inclined surface to the discharge frame 9 at the lower end and is discharged to the external collection container through the discharge frame 9 to maintain the cleanliness of the processing environment.

[0054] After the chamfering and grinding are completed, the second servo electric actuator 27 drives the moving block 25 to return to the initial position to the right, the grinding strip 26 separates from the edge of the circular lens 1, the first servo electric actuator 15 drives the upper clamping plate 20 to rise, release the clamping state of the circular lens 1, and then open the sealing plate 6 to expose the front opening of the protective box 2, and take out the circular lens 1.

[0055] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., 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 utility model 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 utility model.

[0056] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A lens polishing device with protective function, comprising a circular lens (1), characterized in that: The circular lens (1) is provided with a protective mechanism, a clamping drive mechanism, a lens limiting mechanism and a chamfering and polishing mechanism on its exterior. The protective mechanism includes a protective box (2) with an open front side. Two fixed plates (3) are installed on the left side of the protective box (2). An L-shaped plate (5) is rotatably connected between the two fixed plates (3) through a movable shaft (4). A closed plate (6) is fixedly connected to the other end of the L-shaped plate (5). The front edge of the protective box (2) and the rear end of the closed plate (6) are magnetically connected by two magnetic sealing strips (7). The clamping drive mechanism includes a lower clamping plate (14) located inside the protective box (2), a lifting plate (16) is provided inside the protective box (2), a first servo electric push rod (15) is installed at the upper end of the protective box (2), a pressure sensor (17) is installed between the output end of the first servo electric push rod (15) and the lifting plate (16), a box body (18) is fixedly connected to the lower end of the lifting plate (16), a turntable (19) is rotatably connected to the lower end of the box body (18), the turntable (19) is driven by a drive motor (21) installed inside the box body (18), an upper clamping plate (20) is fixedly connected to the lower end of the turntable (19), and a first controller (8) is installed at the upper end of the protective box (2). The lens limiting mechanism includes a stabilizing plate (22) fixedly connected to the left end of the inner wall of the protective box (2), and an arc frame (23) fixedly connected to the right end of the stabilizing plate (22). The arc frame (23) is rotatably connected to a plurality of limiting rollers (24) that abut against the outer wall of the circular lens (1).

2. The lens polishing device with protective function according to claim 1, characterized in that: The chamfering and grinding mechanism includes a second servo electric actuator (27) installed on the right end of the protective box (2). The output end of the second servo electric actuator (27) extends into the interior of the protective box (2) and is fixedly connected to a moving block (25). A V-shaped groove is provided on the left end of the moving block (25). Two grinding strips (26) are installed on the inner wall of the V-shaped groove, which are symmetrically distributed vertically. A second controller (28) is installed on the right end of the protective box (2).

3. The lens polishing device with protective function according to claim 1, characterized in that: The protective box (2) is fixedly connected to a guide frame (10) with a conical inner wall, and the lower end of the guide frame (10) is fixedly connected to a discharge frame (9) that passes through the protective box (2).

4. The lens polishing device with protective function according to claim 2, characterized in that: The upper end of the lifting plate (16) is fixedly connected to two guide rods that penetrate the protective box (2) and are slidably connected to the protective box (2), and the right end of the moving block (25) is fixedly connected to two slide rods that penetrate the protective box (2) and are slidably connected to the protective box (2).

5. The lens polishing device with protective function according to claim 1, characterized in that: The first servo electric actuator (15) is a worm gear type electric actuator.

6. The lens polishing device with protective function according to claim 1, characterized in that: The inner wall of the protective box (2) is fixedly connected with multiple steel columns (11), and the other end of the multiple steel columns (11) is fixedly connected with a support platform (12). The upper end of the support platform (12) is equipped with a fixed column (13), and the lower clamping plate (14) is rotatably connected to the upper end of the fixed column (13).

7. The lens polishing device with protective function according to claim 1, characterized in that: The protective box (2) is fixedly connected to support bars at both ends, and the lower ends of the two support bars are fixedly connected to support frames with multiple mounting holes.

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