An edge polishing device for wide temperature range aspherical lenses

By using a closed-loop temperature control system consisting of an electric heating plate, a cooling mechanism, and a temperature sensor, combined with a silicone anti-slip layer and an upper positioning plate driven by an electric cylinder, the problem of dimensional errors caused by thermal deformation of lenses in a wide temperature range environment is solved, and high-precision grinding of aspherical lenses is achieved.

CN224488619UActive Publication Date: 2026-07-14NANJING EVERLIGHT PHOTONICS TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING EVERLIGHT PHOTONICS TECH CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing equipment has difficulty in temperature compensation adjustment in a wide temperature range environment, which causes dimensional errors in aspherical lenses due to thermal deformation during the polishing process, and cannot meet the requirements for long-term stability.

Method used

A closed-loop temperature control system consisting of an electric heating plate, a cooling mechanism, and a temperature sensor, combined with a silicone anti-slip layer and an upper positioning plate driven by an electric cylinder, is used to achieve stable clamping and temperature regulation of the lens, avoiding thermal deformation that could affect the grinding accuracy.

Benefits of technology

Maintaining stable physical properties of lenses under high and low temperature conditions reduces errors during the polishing process and improves the polishing effect.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model provides a kind of mirror edge polishing equipment for wide temperature range aspheric lens, including mechanism box, the upper surface of the mechanism box is fixedly installed with support cover, the bottom surface of the mechanism box is fixedly installed with speed reducer, the output of the speed reducer is fixedly installed with rotating shaft, the top of the rotating shaft is fixedly installed with rotary platen, the upper surface of the rotary platen is fixedly connected with a plurality of silica gel antiskid layer, one side of the mechanism box is equipped with polishing assembly, it is related to aspheric lens processing field.The utility model can constitute closed loop temperature control assembly by the setting of electric heating plate, refrigeration mechanism and temperature sensor, can induct mechanism box internal temperature, and will simulate wide temperature range environment, avoid the dimensional error caused by traditional equipment due to lack of temperature regulating capacity, can guarantee that still can maintain lens physical property stable under high-low temperature working condition, solve the influence of material deformation under wide temperature range environment on polishing accuracy.
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Description

Technical Field

[0001] This utility model relates to the field of aspherical lens processing, specifically a lens edge grinding device for wide-temperature-range aspherical lenses. Background Technology

[0002] Aspherical lenses are optical lenses whose surface curvature is not spherical. Their surface curvature design breaks through the limitations of traditional spherical lenses, effectively eliminating optical aberrations such as spherical aberration and coma, and improving image clarity and light transmission efficiency. Compared with spherical lenses, aspherical lenses can optimize the structure of optical systems while reducing the number of lenses, and are widely used in aerospace, precision instruments, security monitoring and other fields.

[0003] Currently, during the polishing of aspherical lens edges, the wide temperature range environment significantly affects the physical properties of lens materials, such as special optical glass and resin. Therefore, temperature changes will cause thermal expansion and contraction of the materials, and existing equipment is difficult to adjust for temperature compensation. During the polishing process, dimensional errors are easily caused by thermal deformation, which cannot meet the long-term stability requirements under wide temperature range conditions. To address this issue, we propose a lens edge polishing device for wide temperature range aspherical lenses to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a lens edge grinding device for wide-temperature-range aspherical lenses, so as to solve the problems mentioned in the background art and overcome its technical defects.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a lens edge polishing device for wide temperature range aspherical lenses, including a mechanism box, a support cover fixedly installed on the upper surface of the mechanism box, a reduction motor fixedly installed on the bottom surface of the mechanism box, a rotating shaft fixedly installed at the output end of the reduction motor, a rotating carrier plate fixedly installed at the top end of the rotating shaft, multiple silicone anti-slip layers fixedly connected to the upper surface of the rotating carrier plate, a polishing component provided on one side of the mechanism box, two electric heating plates fixedly installed on the inner wall of the mechanism box, a cooling mechanism fixedly installed on one side of the mechanism box, the cooling end of the cooling mechanism penetrating through the mechanism box and extending into the interior of the mechanism box, and a temperature sensor fixedly installed on the inner top wall of the mechanism box.

[0006] Preferably, the grinding assembly includes a fixing block fixedly installed on one side of the mechanism box, a first electric cylinder fixedly installed on the bottom surface of the fixing block, and a lifting block fixedly installed on the telescopic end of the first electric cylinder.

[0007] Preferably, a drive cover is fixedly installed on one side of the lifting block, a drive motor is fixedly installed on the inner wall of the drive cover, and a grinding roller is fixedly installed at the output end of the drive motor.

[0008] Preferably, a bearing ring is fixedly embedded on one side of the drive cover, and the inner ring of the bearing ring is fixedly connected to the outer surface of the grinding roller.

[0009] Preferably, two limiting slides are fixedly connected to one side of the mechanism box, and the inner walls of the two limiting slides are slidably connected to the outer surface of the lifting block.

[0010] Preferably, the upper surface of the mechanism box has two sliding holes, and the inner walls of the two sliding holes are slidably connected to two sliding rods, and the bottom ends of the two sliding rods are fixedly connected to a bearing plate.

[0011] Preferably, a second electric cylinder is fixedly installed on the inner top wall of the support cover, the telescopic end of the second electric cylinder is fixedly installed on the upper surface of the bearing plate, an upper positioning plate is installed on the bottom surface of the bearing plate, and a silicone layer is fixedly connected to the bottom surface of the upper positioning plate.

[0012] Preferably, a sealing plate is hinged to the outer surface of the mechanism box by a pin, a controller is fixedly installed on the outer surface of the mechanism box, a bearing ring is fixedly embedded in the inner bottom wall of the mechanism box, and the inner ring of the bearing ring is fixedly connected to the outer surface of the rotating shaft.

[0013] Compared with the prior art, the beneficial effects of this utility model include: the closed-loop temperature control component formed by the electric heating plate, the cooling mechanism and the temperature sensor can sense the internal temperature of the mechanism box and simulate a wide temperature range environment, avoiding the dimensional errors caused by the lack of temperature regulation capability in traditional equipment, ensuring that the physical properties of the lens remain stable under high and low temperature conditions, solving the problem of the impact of material deformation on the grinding accuracy under a wide temperature range environment, and the descent of the upper positioning plate driven by the second electric cylinder, combined with the silicone anti-slip layer of the rotating carrier, can form a stable clamping for the aspherical lens, avoiding errors caused by lens displacement during the grinding process, facilitating the grinding component to grind the lens, and improving the grinding effect of the lens. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from the front;

[0016] Figure 2 This is a frontal sectional view of the present invention;

[0017] Figure 3 This is a top sectional view of the present invention;

[0018] Figure 4 This is a frontal sectional view of the grinding component of this utility model;

[0019] The following components are labeled in the diagram: 1. Mechanism box; 2. Support cover; 3. Second electric cylinder; 4. Bearing plate; 5. Upper positioning plate; 6. Gear motor; 7. Bearing ring; 8. Rotating shaft; 9. Silicone anti-slip layer; 10. Rotating carrier plate; 11. Grinding assembly; 111. Fixing block; 112. First electric cylinder; 113. Lifting block; 114. Drive motor; 115. Bearing ring; 116. Grinding roller; 117. Drive cover; 12. Limiting slide; 13. Sliding hole; 14. Sliding rod; 15. Sealing plate; 16. Electric heating plate; 17. Refrigeration mechanism; 18. Temperature sensor; 19. Controller. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0021] In terms of circuit structure, the drive and control circuits of this utility model are common and mature technologies. Those skilled in the art can select appropriate circuit components to build the circuit according to the power requirements and control requirements of the equipment. For the power supply components, common general power supply equipment on the market can be used, as long as the voltage and current requirements of the equipment are met. No special design is required. In addition, the electrical components in this application are all common electrical equipment in the prior art. This application will not elaborate on their models or internal structures.

[0022] According to one embodiment of the present invention, in conjunction with the appended drawings Figure 1-4 As shown.

[0023] A lens edge polishing device for wide-temperature-range aspherical lenses includes a mechanism box 1. A support cover 2 is fixedly installed on the upper surface of the mechanism box 1. A geared motor 6 is fixedly installed on the bottom surface of the mechanism box 1. A rotating shaft 8 is fixedly installed at the output end of the geared motor 6. A rotating carrier plate 10 is fixedly installed at the top end of the rotating shaft 8. Multiple silicone anti-slip layers 9 are fixedly connected to the upper surface of the rotating carrier plate 10. A polishing assembly 11 is provided on one side of the mechanism box 1. Two electric heating plates 16 are fixedly installed on the inner wall of the mechanism box 1. A cooling mechanism 17 is fixedly installed on one side of the mechanism box 1. The cooling mechanism 17 is based on... The vapor compression refrigeration cycle principle mainly includes four major components: compressor, condenser, expansion valve and evaporator. It is an existing technology product. The refrigeration end of the refrigeration mechanism 17 passes through the mechanism box 1 and extends into the interior of the mechanism box 1. A temperature sensor 18 is fixedly installed on the inner top wall of the mechanism box 1. The geared motor 6 drives the rotating disk 10 to rotate through the rotating shaft 8. The electric heating plate 16 on the inner wall of the mechanism box 1 and the refrigeration mechanism 17 on the side can regulate the internal temperature. Together with the temperature sensor 18 and the external controller 19, a closed-loop temperature control system is formed to meet the temperature requirements in a wide temperature range environment.

[0024] In this embodiment, the grinding assembly 11 includes a fixing block 111 fixedly mounted on one side of the mechanism housing 1. A first electric cylinder 112 is fixedly mounted on the bottom surface of the fixing block 111. A lifting block 113 is fixedly mounted on the telescopic end of the first electric cylinder 112. A drive cover 117 is fixedly mounted on one side of the lifting block 113. A drive motor 114 is fixedly mounted on the inner wall of the drive cover 117. A grinding roller 116 is fixedly mounted on the output end of the drive motor 114. A bearing ring 115 is fixedly embedded on one side of the drive cover 117. The inner ring of the bearing ring 115 is fixedly connected to the outer surface of the grinding roller 116. Two limiting slides 12 are fixedly connected to one side of the mechanism box 1. The inner walls of the two limiting slides 12 are slidably connected to the outer surface of the lifting block 113. The fixed block 111 can provide stable support for the first electric cylinder 112. The first electric cylinder 112 can drive the lifting block 113 to slide up and down along the limiting slides 12 by extension and retraction, so as to adjust the height of the grinding roller 116 to adapt to lenses of different thicknesses. The drive motor 114 in the drive cover 117 can provide rotational power for the grinding roller 116. The setting of the bearing ring 115 ensures the stability and concentricity of the rotation of the grinding roller 116.

[0025] In this embodiment, two sliding holes 13 are formed on the upper surface of the mechanism box 1. Two sliding rods 14 are slidably connected to the inner walls of the two sliding holes 13. The bottom ends of the two sliding rods 14 are fixedly connected to a bearing plate 4. A second electric cylinder 3 is fixedly installed on the inner top wall of the support cover 2. The telescopic end of the second electric cylinder 3 is fixedly installed on the upper surface of the bearing plate 4. An upper positioning plate 5 is installed on the bottom surface of the bearing plate 4. A silicone layer is fixedly connected to the bottom surface of the upper positioning plate 5. A sealing plate 15 is hinged to the outer surface of the mechanism box 1 by a pin. A controller 19 is fixedly installed on the outer surface of the mechanism box 1. A bearing ring is fixedly embedded in the inner bottom wall of the mechanism box 1. 7. The inner ring of the bearing ring 7 is fixedly connected to the outer surface of the rotating shaft 8. Through the cooperation of the sliding hole 13 and the sliding rod 14, it can provide guidance for the lifting and lowering of the bearing plate 4. Through the second electric cylinder 3 in the support cover 2, the bearing plate 4 can be pushed down, so that the upper positioning plate 5 on the bottom surface of the bearing plate 4 can be in contact with the surface of the lens. In addition, the bearing plate 4 can be connected to the top of the upper positioning plate 5 through the bearing at the bottom, so that the upper positioning plate 5 can rotate stably. Therefore, in cooperation with the rotating carrier 10, the lens can be reliably clamped. The sealing plate 15 can close the mechanism box 1, reducing the interference of the external environment on the internal temperature and the grinding process.

[0026] Working principle: During operation, the lens to be polished is first placed above the rotating carrier plate 10. Then, the second electric cylinder 3 drives the bearing plate 4 to descend, which enables the upper positioning plate 5 to fit against the upper surface of the lens. Then, the controller 19 starts the electric heating plate 16 or the cooling mechanism 17 according to the preset wide temperature range parameters. The temperature sensor 18 monitors the temperature inside the mechanism box 1 in real time and feeds it back to the controller 19, forming a closed-loop regulation.

[0027] During the polishing stage, the geared motor 6 drives the rotating carrier 10 to rotate via the rotating shaft 8. At the same time, the polishing assembly 11 is started. The first electric cylinder 112 pushes the lifting block 113 to move up and down along the limiting slide 12, which can adjust the contact pressure between the polishing roller 116 and the edge of the lens. Then, the drive motor 114 drives the polishing roller 116 to rotate at high speed, which can polish the edge of the lens.

[0028] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A mirror edge grinding device for wide-temperature-range aspherical lenses, characterized in that, The system includes a mechanism box (1), a support cover (2) is fixedly installed on the upper surface of the mechanism box (1), a geared motor (6) is fixedly installed on the bottom surface of the mechanism box (1), a rotating shaft (8) is fixedly installed at the output end of the geared motor (6), a rotating carrier (10) is fixedly installed at the top end of the rotating shaft (8), a plurality of silicone anti-slip layers (9) are fixedly connected to the upper surface of the rotating carrier (10), a grinding component (11) is provided on one side of the mechanism box (1), two electric heating plates (16) are fixedly installed on the inner wall of the mechanism box (1), a cooling mechanism (17) is fixedly installed on one side of the mechanism box (1), the cooling end of the cooling mechanism (17) penetrates through the mechanism box (1) and extends into the interior of the mechanism box (1), and a temperature sensor (18) is fixedly installed on the inner top wall of the mechanism box (1).

2. The mirror edge polishing equipment for wide-temperature-range aspherical lenses according to claim 1, characterized in that, The grinding assembly (11) includes a fixing block (111) fixedly installed on one side of the mechanism box (1), a first electric cylinder (112) fixedly installed on the bottom surface of the fixing block (111), and a lifting block (113) fixedly installed on the telescopic end of the first electric cylinder (112).

3. The mirror edge polishing equipment for wide-temperature-range aspherical lenses according to claim 2, characterized in that, A drive cover (117) is fixedly installed on one side of the lifting block (113), a drive motor (114) is fixedly installed on the inner wall of the drive cover (117), and a grinding roller (116) is fixedly installed at the output end of the drive motor (114).

4. The mirror edge polishing equipment for wide-temperature-range aspherical lenses according to claim 3, characterized in that, A bearing ring (115) is fixedly embedded on one side of the drive cover (117), and the inner ring of the bearing ring (115) is fixedly connected to the outer surface of the grinding roller (116).

5. The mirror edge polishing equipment for wide-temperature-range aspherical lenses according to claim 1, characterized in that, Two limiting slides (12) are fixedly connected to one side of the mechanism box (1), and the inner walls of the two limiting slides (12) are slidably connected to the outer surface of the lifting block (113).

6. The mirror edge polishing equipment for wide-temperature-range aspherical lenses according to claim 1, characterized in that, The upper surface of the mechanism box (1) has two sliding holes (13), and the inner walls of the two sliding holes (13) are slidably connected to two sliding rods (14), and the bottom ends of the two sliding rods (14) are fixedly connected to a bearing plate (4).

7. The mirror edge polishing equipment for wide-temperature-range aspherical lenses according to claim 1, characterized in that, The inner top wall of the support cover (2) is fixedly installed with a second electric cylinder (3). The telescopic end of the second electric cylinder (3) is fixedly installed with the upper surface of the bearing plate (4). The bottom surface of the bearing plate (4) is installed with an upper positioning plate (5). The bottom surface of the upper positioning plate (5) is fixedly connected with a silicone layer.

8. The mirror edge polishing equipment for wide-temperature-range aspherical lenses according to claim 1, characterized in that, The outer surface of the mechanism box (1) is hinged with a sealing plate (15) by a pin. A controller (19) is fixedly installed on the outer surface of the mechanism box (1). A bearing ring (7) is fixedly embedded in the inner bottom wall of the mechanism box (1). The inner ring of the bearing ring (7) is fixedly connected to the outer surface of the rotating shaft (8).