Centering apparatus for aspheric lens
Through innovative design of the centering and fixing components, precise centering and non-destructive adsorption and fixing of aspherical lenses were achieved, solving the problems of applicability of existing equipment and lens damage, and improving processing quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANYANG TIANNA PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-28
AI Technical Summary
Existing centering equipment is difficult to adapt to lenses of different sizes or irregular shapes, and the lens surface is easily damaged during centering.
The lens is precisely positioned by using a combination of centering and fixing components. A servo motor drives the transmission gears and limit rods, and a vacuum pump is used to create negative pressure to adsorb and fix the lens.
It enables precise centering of lenses of different sizes or irregular shapes, avoids damage to the lens surface, and improves processing quality and equipment applicability.
Smart Images

Figure CN224561003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lens processing, specifically a centering processing device for aspherical lenses. Background Technology
[0002] Lens fabrication refers to the process of shaping materials such as optical glass, crystals, or plastics into lenses with specific curvatures and optical properties. Lenses are core components of optical systems and are widely used in cameras, microscopes, telescopes, lasers, eyeglasses, and other fields. Centering equipment for aspherical lenses is a key piece of equipment in optical manufacturing, used to ensure that the optical axis of the lens is precisely aligned with the mechanical axis.
[0003] In the prior art, existing centering processing equipment is not suitable for centering lenses of different sizes or irregular shapes when centering lenses for different purposes, which reduces the applicability of the centering processing equipment. At the same time, existing shaping processing equipment usually fixes the lens mechanically, which may damage the lens surface when fixing relatively fragile lenses. Existing centering processing equipment is not convenient for fixing the lens by adsorption to avoid damaging the lens surface, thus reducing the processing quality of the lens. Utility Model Content
[0004] To overcome the shortcomings of existing technologies and solve the problems of inconvenience in centering lenses of different sizes or irregular shapes and inconvenience in fixing lenses by adsorption to avoid damaging the lens surface, this utility model proposes a centering processing device for aspherical lenses.
[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: The centering processing equipment for aspherical lenses described in this utility model includes a worktable, a support rod is fixedly connected to the bottom edge of the worktable, a support plate is fixedly connected to the surface of the support rod, a centering component is rotatably connected to the top edge of the support plate, and a fixing component is connected through the middle of the top of the support plate.
[0006] The centering assembly includes a transmission gear rotatably connected to the top edge of the support plate. A transmission rod is fixedly connected to the middle of the bottom of the transmission gear. A support plate is connected through the surface of the transmission rod. The bottom of the transmission rod is splinedly connected to the output end of the servo motor. A connecting plate is fixedly connected to the top of the transmission gear. A limit rod is fixedly connected to one end of the connecting plate. A gear ring is meshed with the surface of the transmission gear. A support plate is rotatably connected to the bottom of the gear ring.
[0007] The fixing assembly includes a cylinder that is connected through the middle of the top of the support plate. A perforated plate is fixedly connected to the edge of the inner surface of the cylinder. A connecting pipe is connected through the bottom of the cylinder, and one end of the connecting pipe is connected through to the output end of the vacuum pump.
[0008] Preferably, a base plate is fixedly connected to the bottom of the support rod, and a vacuum pump is fixedly connected to the top of the base plate.
[0009] Preferably, a motor housing is fixedly connected to the surface of the servo motor, a support plate is fixedly connected to the top of the motor housing, and a base plate is fixedly connected to the bottom of the motor housing.
[0010] Preferably, a base platform is fixedly connected to the bottom of the base plate, a fixing plate is fixedly connected to one side of the base platform, and the processing equipment body is connected through the surface of the fixing plate.
[0011] Preferably, the surface of the workbench is provided with a sliding groove, and a limit rod is slidably connected to the surface of the sliding groove.
[0012] Preferably, a circular hole is provided in the middle of the top of the workbench, and a cylinder is fixedly connected to the surface of the circular hole.
[0013] The advantages of this utility model are:
[0014] 1. This utility model, through the structural design of the centering component, allows the lens to be processed to be placed near the center of the top of the worktable before processing with the centering processing equipment. Then, the servo motor is powered on, and the transmission gear is rotated through the transmission rod. The transmission gear is rotated synchronously through the gear ring, causing the connecting plate to rotate synchronously with the limiting rod, reducing the distance between the limiting rods. The limiting rod moves the lens to be processed to the center position of the top of the worktable for centering, enabling the centering processing equipment to center lenses of different sizes or irregular shapes, thus improving the applicability of the centering processing equipment.
[0015] 2. This utility model, through the structural design of the fixing component, allows the lens to be processed to be centered and limited by the centering component before processing with the centering processing equipment. The vent hole of the perforated plate is then sealed at the bottom of the lens. The vacuum pump is connected to the power supply, and air is drawn into the cylinder and discharged to the outside through the connecting pipe, forming a negative pressure inside the cylinder. The pressure is used to adsorb and fix the lens on the top of the perforated plate, avoiding damage to the lens surface and improving the processing quality of the lens. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the centering component structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the fixing component structure of this utility model.
[0021] In the diagram: 1. Workbench; 2. Support rod; 3. Support plate; 4. Centering assembly; 401. Transmission gear; 402. Transmission rod; 403. Servo motor; 404. Connecting plate; 405. Limiting rod; 406. Gear ring; 5. Fixing assembly; 501. Cylinder; 502. Perforated plate; 503. Connecting pipe; 504. Vacuum pump; 6. Base plate; 7. Motor box; 8. Base platform; 9. Fixing plate; 10. Processing equipment body; 11. Slide groove. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] Please see Figures 1-4 As shown, a centering processing device for aspherical lenses includes a worktable 1, a support rod 2 fixedly connected to the bottom edge of the worktable 1, a support plate 3 fixedly connected to the surface of the support rod 2, a centering component 4 rotatably connected to the top edge of the support plate 3, and a fixing component 5 throughly connected to the middle of the top of the support plate 3.
[0024] The centering component 4 includes a transmission gear 401 rotatably connected to the top edge of the support plate 3. A transmission rod 402 is fixedly connected to the middle of the bottom of the transmission gear 401. The support plate 3 is connected through the surface of the transmission rod 402. The bottom spline of the transmission rod 402 is connected to the output end of the servo motor 403. A connecting plate 404 is fixedly connected to the top of the transmission gear 401. A limit rod 405 is fixedly connected to one end of the connecting plate 404. A gear ring 406 is meshed with the surface of the transmission gear 401. The support plate 3 is rotatably connected to the bottom of the gear ring 406.
[0025] The fixing component 5 includes a cylinder 501 that is connected through the middle of the top of the support plate 3. A perforated plate 502 is fixedly connected to the edge of the inner surface of the cylinder 501. A connecting pipe 503 is connected through the bottom of the cylinder 501. One end of the connecting pipe 503 is connected through to the output end of the vacuum pump 504.
[0026] During operation, thanks to the structural design of the centering component 4, before processing with the centering machining equipment, the lens to be processed is placed near the center of the top of the worktable 1. Then, the servo motor 403 is powered on, driving the transmission gear 401 to rotate via the transmission rod 402. This rotation, in turn, causes the gear ring 406 to drive each transmission gear 401 to rotate synchronously, causing the connecting plate 404 to drive the limiting rods 405 to rotate synchronously, reducing the distance between the limiting rods 405. The limiting rods 405 then move the lens to be processed to the center position on the top of the worktable 1 for centering, enabling the centering machining equipment to center lenses that are not properly aligned. The alignment of lenses of the same size or irregular shape improves the applicability of the centering processing equipment. Through the structural setting of the fixing component 5, before processing with the centering processing equipment, the lens to be processed is aligned and limited by the centering component 4. The vent hole of the perforated plate 502 at the bottom of the lens is blocked. The vacuum pump 504 is connected to the power supply and powered on. The air inside the cylinder 501 is drawn in and discharged to the outside through the connecting pipe 503, forming a negative pressure inside the cylinder 501. The pressure is used to adsorb and fix the lens at the top of the perforated plate 502, avoiding damage to the lens surface and improving the processing quality of the lens.
[0027] Furthermore, a base plate 6 is fixedly connected to the bottom of the support rod 2, and a vacuum pump 504 is fixedly connected to the top of the base plate 6;
[0028] During operation, the base plate 6 provides sufficient space for the vacuum pump 504 and the motor box 7 while simultaneously securing their bottoms.
[0029] Furthermore, a motor box 7 is fixedly connected to the surface of the servo motor 403, a support plate 3 is fixedly connected to the top of the motor box 7, and a base plate 6 is fixedly connected to the bottom of the motor box 7.
[0030] During operation, the servo motor 403 can be protected and secured by the motor box 7.
[0031] Furthermore, a base platform 8 is fixedly connected to the bottom of the base plate 6, a fixing plate 9 is fixedly connected to one side of the base platform 8, and the processing equipment body 10 is connected through the surface of the fixing plate 9.
[0032] During operation, the processing equipment body 10 can perform various types of processing on the lens on the worktable 1.
[0033] Furthermore, a groove 11 is provided on the surface of the workbench 1, and a limit rod 405 is slidably connected to the surface of the groove 11;
[0034] During operation, the sliding groove 11 improves the stability of the limit rod 405 when it slides.
[0035] Furthermore, a circular hole is provided in the middle of the top of the workbench 1, and a cylinder 501 is fixedly connected to the surface of the circular hole;
[0036] During operation, the cylinder 501 is fixedly connected to the cylinder 501 through the round hole, so that the top surface of the cylinder 501 is flush with the top surface of the worktable 1, and the cylinder 501 and the worktable 1 are fixed as a whole.
[0037] Working principle: Before processing with this centering processing equipment, the lens to be processed is placed on the top of the worktable 1 near the center. Then, the servo motor 403 is powered on, which drives the transmission gear 401 to rotate through the transmission rod 402. The gear ring 406 drives each transmission gear 401 to rotate synchronously, causing the connecting plate 404 to drive the limiting rod 405 to rotate synchronously, reducing the distance between each limiting rod 405. The limiting rod 405 moves the lens to be processed to the center position on the top of the worktable 1 for centering. After centering, the vent hole of the perforated plate 502 at the bottom of the lens is sealed. The vacuum pump 504 is connected to the power supply and powered on. The air inside the cylinder 501 is drawn in and discharged to the outside through the connecting pipe 503, forming a negative pressure inside the cylinder 501. The pressure is used to adsorb and fix the lens on the top of the perforated plate 502.
[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or similar improvements made within the theoretical and principle content of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A centering processing device for aspherical lenses, characterized in that: Includes a workbench (1), a support rod (2) is fixedly connected to the bottom edge of the workbench (1), a support plate (3) is fixedly connected to the surface of the support rod (2), an alignment component (4) is rotatably connected to the top edge of the support plate (3), and a fixing component (5) is connected through the middle of the top of the support plate (3). The centering component (4) includes a transmission gear (401) rotatably connected to the top edge of the support plate (3), a transmission rod (402) fixedly connected to the middle of the bottom of the transmission gear (401), a support plate (3) being connected through the surface of the transmission rod (402), the bottom spline of the transmission rod (402) being connected to the output end of the servo motor (403), a connecting plate (404) fixedly connected to the top of the transmission gear (401), a limit rod (405) fixedly connected to one end of the connecting plate (404), a gear ring (406) meshing with the surface of the transmission gear (401), and a support plate (3) rotatably connected to the bottom of the gear ring (406). The fixing component (5) includes a cylinder (501) that is connected through the middle of the top of the support plate (3). A perforated plate (502) is fixedly connected to the edge of the inner surface of the cylinder (501). A connecting pipe (503) is connected through the bottom of the cylinder (501). One end of the connecting pipe (503) is connected through the output end of the vacuum pump (504).
2. The centering processing equipment for aspherical lenses according to claim 1, characterized in that: The bottom of the support rod (2) is fixedly connected to a base plate (6), and the top of the base plate (6) is fixedly connected to a vacuum pump (504).
3. The centering processing equipment for aspherical lenses according to claim 1, characterized in that: The servo motor (403) is fixedly connected to a motor box (7), the top of the motor box (7) is fixedly connected to a support plate (3), and the bottom of the motor box (7) is fixedly connected to a base plate (6).
4. The centering processing equipment for aspherical lenses according to claim 2, characterized in that: The bottom of the base plate (6) is fixedly connected to a base platform (8), and a fixing plate (9) is fixedly connected to one side of the base platform (8). The surface of the fixing plate (9) is connected to the processing equipment body (10).
5. The centering processing equipment for aspherical lenses according to claim 1, characterized in that: The surface of the workbench (1) is provided with a sliding groove (11), and a limit rod (405) is slidably connected to the surface of the sliding groove (11).
6. The centering processing equipment for aspherical lenses according to claim 1, characterized in that: A circular hole is provided in the middle of the top of the workbench (1), and a cylinder (501) is fixedly connected to the surface of the circular hole.