A carrying jig for coating optical lenses

Abstract

The utility model discloses a kind of optical lens coating bearing jigs, including bottom plate, limit post is fixedly arranged on the bottom plate upper end, the limit post one side is equipped with guide block;The bottom plate upper end is equipped with a plurality of through holes for placing optical lens, the through hole inner wall is equipped with annular clamping groove, the clamping groove is inlayed with elastic gasket, the bottom plate upper side is equipped with detachable fixed plate, the fixed plate center is equipped with the guide hole of coaxial adaptation with limit post, the fixed plate upper end is equipped with a plurality of limit holes, the limit hole is distributed with guide hole as center of circle radially.This utility model provides a kind of optical lens coating bearing jig has the effect of firmly fixed lens, avoids transfer coating tooling or when being positioned in vacuum chamber, unsecured lens is prone to displacement even drop, makes fragment pollute coating cavity;And simultaneously can remove residual dust on lens, avoid affecting the coating effect of lens.

Description

Technical Field

[0001] This utility model relates to the field of optical lens support fixture technology, specifically to a support fixture for optical lens coating. Background Technology

[0002] Optical lens coating refers to the deposition of one or more nano-scale thin films (typically tens to hundreds of nanometers thick) on the lens surface using physical or chemical methods to control the reflection, transmission, absorption, and polarization properties of light, thereby optimizing optical performance. Coating is one of the core processes in optical manufacturing, directly affecting image quality, energy efficiency, and device lifespan. It is a crucial step in the production of optical lenses. To improve production efficiency, manufacturers typically use support fixtures to simultaneously place a large number of lenses for coating operations. Chinese Patent No. CN202421606788.6 relates to an optical lens alignment and calibration device. This device includes a mounting base, a guide rail, a left alignment calibration component, a right alignment calibration component, and a drive component. The mounting base has the guide rail, on which a forward slider and a reverse slider are slidably mounted. The forward and reverse sliders are fixedly connected to the left and right alignment calibration components, respectively. The drive component includes a lead screw with forward and reverse threads. The drive component drives the left and right alignment calibration components to open or close together. The left alignment calibration component includes a left connecting plate on which a left calibration fixture is mounted. The right alignment calibration component includes a right connecting plate on which a right calibration fixture is mounted. This invention is simple and easy to operate, enabling faster and more accurate product alignment and positioning, ensuring product processing precision, and thus indirectly improving production efficiency.

[0003] Based on the above, the inventors have discovered the following problems: The aforementioned device enables faster and more accurate centering and positioning of products, ensuring product processing precision and indirectly improving production efficiency; however, the clamping and fixing of optical lenses is also crucial during the coating process. Existing optical lenses, during coating operations, are simply placed on a circular support plate without any fixing effect or constraint mechanism. When transferring coating fixtures or positioning in a vacuum chamber, unfixed lenses are prone to displacement or even detachment, leading not only to uncontrolled film uniformity but also posing a significant process risk of debris contaminating the coating chamber. Utility Model Content

[0004] The purpose of this invention is to provide a support fixture for optical lens coating, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a support fixture for optical lens coating, comprising a base plate, wherein a limiting post is fixedly provided at the upper end of the base plate, and a guide block is provided on one side of the limiting post; the upper end of the base plate is provided with a plurality of through holes for placing optical lenses, wherein an annular groove is provided on the inner wall of the through hole, and an elastic gasket is embedded in the groove.

[0006] Furthermore, a detachable fixing plate is provided above the base plate, and a guide hole coaxial with the limiting post is provided at the center of the fixing plate.

[0007] Furthermore, the upper end of the fixing plate is provided with multiple limiting holes, which are radially distributed with the guide hole as the center.

[0008] Furthermore, the through holes are radially distributed with the limiting post as the center and are aligned with the axial direction of the limiting hole.

[0009] Furthermore, a rubber ring is fixedly provided at the lower end of the limiting hole.

[0010] Furthermore, the rubber ring has a sealed inner cavity with multiple air vents evenly distributed around its circumference, and the air vents spray in the direction of the air vents pointing towards the geometric center of the slot.

[0011] Furthermore, the diameter of the slot is smaller than the diameter of the through hole, forming a stepped support structure.

[0012] Furthermore, the outer edge of the base plate is provided with an annular connecting ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the proposed optical lens coating support fixture is reasonable and has the following advantages:

[0014] (1) The core pain point of optical lens coating is completely solved by the triple precision coupling design; its stepped support structure elastic pad forms an adaptive lens mount, which improves the radial positioning accuracy of the lens; the radially distributed limiting holes are axially aligned with the through holes to ensure that the rubber ring applies a uniform load when it is pressed vertically against the edge of the lens, eliminating the micro-cracks caused by traditional hard contact; and when the fixed plate presses and triggers the compression of the rubber ring, the high-pressure gas in the sealed inner cavity is sprayed from the air outlet towards the lens, forming a laminar air curtain on the lens surface, which effectively removes tiny dust particles and greatly reduces labor costs compared to manual wiping.

[0015] (2) The innovative modular compatible architecture breaks the inherent limitation of "one lens, one fixture" in optical coating fixtures; the elastic pad adopts a quick-release design, and can be adapted to different curvature lenses by changing the inner diameter specifications (Φ25 / 40 / 60mm series). This not only greatly reduces the switching time, but also reduces the procurement cost compared with traditional fixtures, making this device have a wider range of applications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is an exploded structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the bottom structure of the fixing plate of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the rubber ring of this utility model;

[0020] In the diagram: 1. Fixing plate; 2. Base plate; 3. Limiting post; 4. Guide hole; 5. Connecting ring; 6. Through hole; 7. Slot; 8. Limiting hole; 9. Rubber ring; 10. Inner cavity; 11. Vent hole; 12. Gasket; 13. Guide block. Detailed Implementation

[0021] 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 protection scope of the present utility model.

[0022] Please see Figure 1-4 The present invention provides a technical solution as follows:

[0023] Example 1:

[0024] A support fixture for optical lens coating includes a base plate 2, characterized in that: a limiting post 3 is fixedly provided on the upper end of the base plate 2, and a guide block 13 is provided on one side of the limiting post 3; a plurality of through holes 6 for placing optical lenses are provided on the upper end of the base plate 2, and an annular groove 7 is provided on the inner wall of the through hole 6, and an elastic gasket 12 is embedded in the groove 7.

[0025] The base plate 2 is provided with a detachable fixing plate 1 above it, and the fixing plate 1 has a guide hole 4 at its center that is coaxial with and adapted to the limiting post 3.

[0026] The upper end of the fixing plate 1 is provided with a plurality of limiting holes 8, which are radially distributed with the guide hole 4 as the center.

[0027] The through holes 6 are radially distributed with the limiting post 3 as the center, and are axially aligned with the limiting holes 8.

[0028] A rubber ring 9 is fixedly provided at the lower end of the limiting hole 8.

[0029] The rubber ring 9 has a sealed inner cavity 10 with multiple air outlets 11 evenly distributed around its circumference. The air outlets 11 spray in the direction of the air jets pointing towards the geometric center of the slot 7.

[0030] The diameter of the slot 7 is smaller than the diameter of the through hole 6, forming a stepped support structure.

[0031] The base plate 2 has an annular connecting ring 5 on its outer edge.

[0032] Working principle: When using this fixture, the optical lens is placed on the upper surface of the annular groove 7 within the through hole 6, with initial support provided by the elastic pad 12. After multiple lenses are loaded, the fixing plate 1 is pressed axially by the guiding engagement of the limiting post 3 and the guide hole 4. At this time, the fixing plate 1 drives the rubber ring 9 to press down to the edge of the lens, forming a flexible contact fixation—the properties of the rubber material effectively prevent scratches on the lens surface;

[0033] When the fixing plate 1 and the base plate 2 are fully in contact, the rubber ring 9 is compressed and deformed, and the gas in its sealed inner cavity 10 is directionally ejected through the circumferentially distributed air outlets 11. This airflow targets the geometric center of the slot 7 and precisely blows away residual particles on the lens surface, greatly improving efficiency compared to traditional manual dust removal.

[0034] Furthermore, the elastic pad 12 adopts a replaceable design, and its inner diameter specifications can be customized according to the lens model, such as the Φ25mm / 40mm / 60mm series, so that a single fixture is compatible with lenses of different sizes, and its applicability is extended to all categories of optical component coating scenarios such as AR lenses and automotive prisms.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A support fixture for optical lens coating, comprising a base plate (2), characterized in that: The upper end of the base plate (2) is fixedly provided with a limiting post (3), and a guide block (13) is provided on one side of the limiting post (3); the upper end of the base plate (2) is provided with multiple through holes (6) for placing optical lenses, and the inner wall of the through hole (6) is provided with an annular groove (7), and an elastic gasket (12) is embedded in the groove (7).

2. The bearing fixture according to claim 1, characterized in that: The base plate (2) is provided with a detachable fixing plate (1) above it, and the center of the fixing plate (1) is provided with a guide hole (4) that is coaxially adapted to the limiting post (3).

3. The bearing fixture according to claim 2, characterized in that: The upper end of the fixing plate (1) is provided with multiple limiting holes (8), which are radially distributed with the guide hole (4) as the center.

4. The bearing fixture according to claim 3, characterized in that: The through holes (6) are radially distributed with the limiting post (3) as the center, and are axially aligned with the limiting holes (8).

5. The bearing fixture according to claim 4, characterized in that: A rubber ring (9) is fixedly provided at the lower end of the limiting hole (8).

6. The bearing fixture according to claim 5, characterized in that: The rubber ring (9) has a sealed inner cavity (10) inside, and multiple air outlets (11) are evenly distributed around its circumference. The spray direction of the air outlets (11) is directed towards the geometric center of the slot (7).

7. The bearing fixture according to claim 6, characterized in that: The diameter of the slot (7) is smaller than the diameter of the through hole (6), forming a stepped support structure.

8. The bearing fixture according to claim 1, characterized in that: The outer edge of the base plate (2) is provided with an annular connecting ring (5).

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