A fixing device for polishing aspherical lenses

Abstract

The utility model discloses a kind of fixed devices for polishing aspherical lens, applied in optical element composite processing technical field, the utility model is by having separate self-adapting characteristics, effectively adhering irregular curved surface of aspherical lens, avoid local suspension or overpressure situation, can form multidirectional balanced clamping with the aid of elastic force, stable cancellation cutting force in polishing process, prevent lens from producing displacement, can be realized in clamping process Precision centering of lens, ensure that lens center and polishing reference keep alignment, different specifications of aspherical lens can be adapted, and lens surface has good protective effect, reduce damage risk in clamping process;Different shapes of aspherical lens can be effectively adapted, realize the close adhesion with lens edge, can enhance the stability when positioning, can reduce the local pressure when clamping block and lens contact, form good protection to lens surface, reduce damage risk caused by clamping.

Description

Technical Field

[0001] This utility model belongs to the field of optical component composite processing technology, and specifically relates to a fixing device for polishing aspherical lenses. Background Technology

[0002] Aspherical lenses have a different surface curvature than ordinary spherical lenses. In order to achieve thinner lenses, it is necessary to change the curvature of the lens. In the past, the use of spherical design increased aberrations and distortions, resulting in obvious problems such as unclear images, distorted vision, and narrow field of vision. Now, the aspherical design corrects the image and solves problems such as distorted vision. At the same time, it makes the lens lighter, thinner, and flatter, while still maintaining excellent impact resistance, making it safe for wearers. The fixing device for aspherical lens polishing is a device used to position and fix aspherical lenses during polishing.

[0003] However, traditional fixing devices for polishing aspherical lenses are difficult to fit the irregular curved surface of aspherical lenses, which can easily lead to local suspension or overpressure. They are also difficult to stably counteract the cutting force during the polishing process, which can easily cause lens displacement. They are not easy to achieve precise centering of the lens, and it is difficult to ensure that the center of the lens is aligned with the polishing reference. They have poor adaptability to aspherical lenses of different specifications, and their protective effect on the lens surface is not good. They are also prone to lens damage during clamping. At the same time, they are not easy to achieve a tight fit with the edge of the lens, and their positioning stability is insufficient, which can easily cause lens damage during positioning.

[0004] To address the problems mentioned in the background above, a fixing device for polishing aspherical lenses is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a fixing device for polishing aspherical lenses, which has the advantages of self-adaptive positioning and easy fitting.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a fixing device for polishing aspherical lenses, including a platform, with a sliding sleeve bolted to the front end, rear end and both sides of the top of the platform, a sliding rod slidably sleeved inside the sliding sleeve, a spring sleeved on the inner side of the surface of the sliding rod, a clamping block fixedly sleeved at one end of the inner side of the sliding rod, and a fitting mechanism provided inside the clamping block.

[0007] The above technical solution involves placing the aspherical lens between the central clamping blocks at the top of the platform. Pushing each clamping block causes its corresponding sliding rod to slide synchronously within the sliding sleeve. During this process, the spring is compressed, and the reaction force generated by the compression pushes the clamping blocks in the opposite direction, allowing each clamping block to clamp and position the lens surface from its corresponding direction. The elastic force of the spring achieves adaptive clamping of the lens, while maintaining balanced force during clamping, thus fixing the lens for subsequent polishing operations. It has independent adaptive characteristics, effectively conforming to the irregular curved surface of the aspherical lens, avoiding local suspension or overpressure. It can form multi-directional balanced clamping with the help of elastic force, stably offsetting the cutting force during polishing, preventing lens displacement, and coordinating to achieve precise centering of the lens during clamping, ensuring that the lens center remains aligned with the polishing reference. It can adapt to aspherical lenses of different specifications and has a good protective effect on the lens surface, reducing the risk of damage during clamping.

[0008] The present invention is further configured such that the bonding mechanism includes a connecting rod, the connecting rod is hinged at the top and bottom inside the clamping block one, one end of the connecting rod is fixedly sleeved with a clamping block two, and a protective pad is adhered to the bottom and inner side inside the clamping block two.

[0009] The above technical solution employs a bonding mechanism. When clamping block one moves towards the lens, clamping block two first contacts the lens surface. Since the connecting rod is hinged to the inside of clamping block one, clamping block two can flexibly rotate around the hinge point of the connecting rod according to the actual curved shape of the lens to adjust the bonding posture, thereby tightly bonding to the lens surface. The protective pad inside clamping block two directly contacts the lens, ensuring bonding stability while preventing clamping block two from damaging the lens surface. Ultimately, it achieves flexible adaptive bonding to the lens, effectively adapting to aspherical lenses of different shapes, achieving tight bonding with the lens edge, enhancing stability during positioning, reducing local pressure when the clamping block contacts the lens, providing good protection for the lens surface, reducing the risk of damage caused by clamping, and improving adaptability to various specifications of aspherical lenses.

[0010] The present invention is further configured such that the second clamping block is L-shaped.

[0011] By adopting the above technical solution, by setting it to an L-shape, the bottom of the lens can be supported during positioning, preventing the lens from slipping off during positioning.

[0012] The present invention is further configured such that the inner side of the second clamping block is arc-shaped.

[0013] The above technical solution allows for easy fitting of the lens edge by setting it to an arc shape.

[0014] The present invention is further configured such that the hinge angle between the clamping block and the connecting rod is set to twenty degrees.

[0015] The above technical solution is adopted: by setting it to 20 degrees, if it exceeds 20 degrees, it may deviate from the curved surface of the lens, resulting in ineffective clamping or even lens falling off.

[0016] The present invention is further configured such that a limit block is fixedly sleeved at one end of the outer side of the slide rod.

[0017] The above technical solution, by setting a limit block, can prevent the slide bar from falling off.

[0018] The present invention is further configured such that a bottom rod is fixedly sleeved at the bottom of the platform.

[0019] The above technical solution, by setting a base rod, can stabilize the device.

[0020] The present invention is further configured such that the bottom of the base rod is fixedly connected to the bottom of the interior of the polishing mechanism.

[0021] The above technical solution allows for easy fixing and stabilization of the device by setting it to be fixedly connected to the bottom inside the polishing mechanism, thus facilitating its cooperation with the polishing mechanism.

[0022] In summary, this utility model has the following beneficial effects: 1. This utility model has an independent adaptive characteristic, which can effectively fit the irregular curved surface of aspherical lenses, avoid local suspension or overpressure, and form a multi-directional balanced clamping by means of elastic force to stably offset the cutting force during the polishing process and prevent the lens from shifting. It can also achieve precise centering of the lens during the clamping process, ensuring that the center of the lens is aligned with the polishing reference. It can be adapted to aspherical lenses of different specifications and has a good protective effect on the lens surface, reducing the risk of damage during the clamping process. 2. This utility model can effectively adapt to aspherical lenses of different shapes, achieve a close fit with the lens edge, enhance the stability during positioning, reduce the local pressure when the clamping block contacts the lens, form good protection for the lens surface, reduce the risk of damage caused by clamping, and improve the adaptability to aspherical lenses of various specifications. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front sectional view of the overall structure of this utility model; Figure 3 This is a utility model Figure 2 An enlarged schematic diagram of the structure at point A in the middle.

[0024] Reference numerals in the attached diagram: 1. Platform; 2. Sliding sleeve; 3. Sliding rod; 4. Spring; 5. Clamping block one; 6. Clamping block two; 7. Connecting rod; 8. Protective pad; 9. Limiting block; 10. Bottom rod. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Example 1: refer to Figure 1 , Figure 2 , Figure 3 A fixing device for polishing aspherical lenses includes a platform 1. Sliding sleeves 2 are bolted to the front end, rear end, and both sides of the top of the platform 1. A sliding rod 3 is slidably sleeved inside the sliding sleeve 2. A spring 4 with a stiffness of 5-8 N / mm is sleeved on the inner side of the surface of the sliding rod 3. A clamping block 5 is fixedly sleeved at one end of the inner side of the sliding rod 3. A fitting mechanism is provided inside the clamping block 5. When the aspherical lens is placed between the clamping blocks 5 at the center of the top of the platform 1, pushing each clamping block 5 causes the corresponding sliding rod 3 to slide synchronously within the sliding sleeve 2. During this process, the spring 4 is compressed, and the reaction force generated by the compression of the spring 4 pushes the clamping block 5 in the opposite direction, causing each clamping block 5 to clamp and position the lens surface from its corresponding direction. The elastic force of the spring 4 achieves adaptive clamping of the lens while maintaining balanced force during clamping, thus fixing the lens for subsequent polishing operations.

[0027] refer to Figure 1 , Figure 2 A limit block 9 is fixedly sleeved on one end of the outer side of the slide rod 3. By setting the limit block 9, the slide rod 3 can be prevented from falling off.

[0028] refer to Figure 1 , Figure 2 The bottom of platform 1 is fixedly fitted with a bottom rod 10, which can stabilize the device.

[0029] refer to Figure 1 , Figure 2 The bottom of the base rod 10 is fixedly connected to the bottom inside the polishing mechanism. By fixing it to the bottom inside the polishing mechanism, the device can be easily fixed and stabilized, and it can cooperate with the polishing mechanism.

[0030] Example 2: refer to Figure 1 , Figure 2 , Figure 3A fixing device for polishing aspherical lenses includes a bonding mechanism comprising a connecting rod 7, which is hinged at the top and bottom inside a clamping block 5. A clamping block 6 is fixedly sleeved at one end of the connecting rod 7. A protective pad 8, made of polyurethane, is adhered to the bottom and inner side of the clamping block 6. When the clamping block 5 moves toward the lens, the clamping block 6 will first contact the lens surface. Since the connecting rod 7 is hinged to the inside of the clamping block 5, the clamping block 6 can flexibly rotate around the hinge point of the connecting rod 7 according to the actual curved shape of the lens to adjust the bonding posture, thereby tightly bonding to the lens surface. The protective pad 8 inside the clamping block 6 directly contacts the lens, ensuring bonding stability while preventing the clamping block 6 from damaging the lens surface, ultimately achieving flexible adaptive bonding of the lens.

[0031] refer to Figure 2 , Figure 3 Clamping block 2 6 is set to L-shape. By setting it to L-shape, the bottom of the lens can be supported when positioning the lens, preventing the lens from slipping off during positioning.

[0032] refer to Figure 2 , Figure 3 The inner side of the clip 2 6 is set to be curved, which makes it easy to fit the edge of the lens.

[0033] refer to Figure 1 , Figure 2 , Figure 3 The hinge angle between clamping block 5 and connecting rod 7 is set to 20 degrees. If the angle exceeds 20 degrees, the angle may deviate from the curved surface of the lens, resulting in ineffective clamping or even lens detachment.

[0034] Brief description of the usage process: Place the aspherical lens between the central clamping blocks 5 at the top of platform 1. Push each clamping block 5, and the clamping block 5 will drive the corresponding slide rod 3 to slide synchronously within the sliding sleeve 2. During this process, the spring 4 is compressed. The reaction force generated by the compression of the spring 4 will push the clamping block 5 in the opposite direction, so that each clamping block 5 clamps and positions the lens surface from the corresponding direction. Then, the elastic force of the spring 4 achieves adaptive clamping of the lens, while maintaining the force balance during the clamping process, and completing the fixation of the lens to cooperate with the subsequent polishing operation. When the clamping block 5 moves towards the lens, the clamping block 6 will first contact the lens surface. Since the connecting rod 7 is hinged to the inside of the clamping block 5, the clamping block 6 can flexibly rotate around the hinge point of the connecting rod 7 according to the actual curved shape of the lens to adjust the fitting posture, thereby closely fitting the lens surface. The protective pad 8 inside the clamping block 6 directly contacts the lens, ensuring the stability of the fitting while avoiding damage to the lens surface by the clamping block 6, and finally achieving flexible adaptive fitting of the lens.

[0035] It should be noted that parts have a lifespan and can be replaced during regular maintenance when they no longer meet performance requirements. Deterioration in performance due to prolonged use of parts is not a design defect of this application.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A fixing device for polishing aspherical lenses, comprising a platform (1), characterized in that: The platform (1) has a sliding sleeve (2) bolted to the front end, rear end and both sides. The sliding sleeve (2) has a sliding rod (3) slidably sleeved inside. The inner side of the surface of the sliding rod (3) is sleeved with a spring (4). One end of the inner side of the sliding rod (3) is fixedly sleeved with a clamping block (5). The clamping block (5) has a fitting mechanism inside.

2. The fixing device for polishing aspherical lenses according to claim 1, characterized in that: The bonding mechanism includes a connecting rod (7), which is hinged at the top and bottom inside the clamping block one (5). One end of the connecting rod (7) is fixedly sleeved with a clamping block two (6), and a protective pad (8) is adhered to the bottom and inner side inside the clamping block two (6).

3. The fixing device for polishing aspherical lenses according to claim 2, characterized in that: The clamping block 2 (6) is configured as L-shaped.

4. The fixing device for polishing aspherical lenses according to claim 2, characterized in that: The inner side of the clamping block 2 (6) is set to be arc-shaped.

5. The fixing device for polishing aspherical lenses according to claim 2, characterized in that: The hinge angle between the clamping block (5) and the connecting rod (7) is set to twenty degrees.

6. The fixing device for polishing aspherical lenses according to claim 1, characterized in that: One end of the slide bar (3) is fixedly sleeved with a limiting block (9).

7. The fixing device for polishing aspherical lenses according to claim 1, characterized in that: The bottom of the platform (1) is fixedly fitted with a bottom rod (10).

8. The fixing device for polishing aspherical lenses according to claim 7, characterized in that: The bottom of the base rod (10) is configured to be fixedly connected to the bottom inside the polishing mechanism.

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