Fixture for automatic accurate grinding and polishing of medium-and-large-aperture optical lens

Abstract

The utility model relates to the technical field of optical lens polishing, in particular to an automatic fine grinding and polishing clamp for medium and large-caliber optical lenses, which comprises a first supporting disc, a connecting seat is mounted at the top of the first supporting disc, and a first air hole is formed in the middle of the supporting disc in a penetrating manner; an annular magnet is installed at the bottom of the first supporting disc, the middle of the magnet corresponds to the first air hole, a second supporting disc is arranged below the first supporting disc, a hemispherical placing base is coaxially installed at the bottom of the second supporting disc, a second air hole is formed in the middle of the second supporting disc, and the second air hole penetrates through the placing base. And a magnetic annular block is mounted at the top of the second supporting disc. When the clamp for automatic fine grinding and polishing of the medium and large-caliber optical lenses is used, through the adsorption effect of the magnet on the magnetic annular block, the placing base can be conveniently taken and placed on the first supporting disc, the placing base can be conveniently replaced, and the machining requirements of different precisions can be conveniently met.

Description

[0001] technical field.

[0002] The utility model relates to the technical field of optical lens polishing, in particular to a fixture for automatic fine grinding and polishing of medium- and large-diameter optical lenses.

[0003] Background technology.

[0004] An optical lens is a transparent material made of optical materials such as glass or resin, and is often used to make eyeglasses to correct vision and obtain a clear field of view. Optical lenses can be described by their optical properties, chemical properties, thermal properties and mechanical properties. Optical properties include refractive index, transmittance and dispersion coefficient, which are important parameters when designing lenses. Chemical properties involve the lens's resistance to corrosion by chemical substances, while thermal and mechanical properties are related to the stability and durability of the lens in different environments.

[0005] When processing optical lenses, a fine grinding device is required to polish them. During polishing, the optical lens needs to be placed on a lens fixture for fixation. However, most existing optical lens polishing fixtures are integrated with the fine grinding device, which means the fixture lacks relative movement space, resulting in the fine grinding device being unable to meet the precision requirements of all specifications of optical lenses. To address this problem, we proposed a fixture for automated fine grinding and polishing of medium and large diameter optical lenses.

[0006] Utility model content.

[0007] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a fixture for automatic fine grinding and polishing of medium and large-diameter optical lenses.

[0008] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: a fixture for automated fine grinding and polishing of medium and large-diameter optical lenses is designed, comprising a first support plate, a connecting seat is installed on the top of the first support plate, and a first air hole is provided through the middle of the first support plate;

[0009] An annular magnet is installed at the bottom of the first support plate, and the middle of the magnet corresponds to the first air hole. A second support plate is arranged below the first support plate, and a hemispherical placement seat is coaxially installed at the bottom of the second support plate. A second air hole is opened in the middle of the second support plate, and the second air hole passes through the placement seat. A magnetic annular block is installed on the top of the second support plate, and the annular block corresponds to the magnet.

[0010] Preferably, the placement seat is an elastic rubber block.

[0011] Preferably, a limiting skirt is installed along the bottom edge of the placement seat, and the limiting skirt is an annular rubber plate.

[0012] Preferably, an annular second sealing ring is installed along the bottom edge of the first support plate, and a distance is left between the second sealing ring and the magnet to form an annular cavity between the second sealing ring and the magnet.

[0013] Preferably, an annular protrusion is provided along the edge of the annular block, the annular protrusion is provided along the outer side of the annular block and corresponds to the inner wall of the second sealing ring, wherein the annular protrusion is a rubber block.

[0014] Preferably, the connecting seat includes a connecting pipe, which is coaxially fixed on the top of the first supporting plate, and a threaded groove is provided on the inner wall of the connecting pipe.

[0015] Preferably, a first sealing ring is installed on the top of the connecting pipe.

[0016] The design scheme proposed by the utility model has the following beneficial effects during application:

[0017] The fixture for automatic fine grinding and polishing of medium and large aperture optical lenses uses the adsorption effect of magnets on magnetic annular blocks to facilitate the placement of the placement seat on the first support plate, so that the placement seat can be replaced to meet processing requirements of different precisions.

[0018] The fixture for automated fine grinding and polishing of medium and large-diameter optical lenses uses an annular cavity between the second sealing ring and the magnet, so that when the optical lens is adsorbed at the bottom of the placement seat, the continuous adsorption effect generated by the adsorption will drive the second support plate to move upward, and the annular cavity can provide a movable buffer space for the upward movement of the second support plate at this time, thereby improving the grinding accuracy.

[0019] Description of the accompanying drawings.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is an exploded view of the utility model;

[0022] Figure 3 This is a schematic diagram of the bottom structure of the first support plate of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the placement seat of the utility model;

[0024] Figure 5 This is an installation effect diagram of the utility model.

[0025] In the figure: 1. first support plate; 2. connecting pipe; 3. threaded groove; 4. first sealing ring; 5. first air hole; 6. magnet; 7. annular cavity; 8. second sealing ring; 9. second support plate; 10. annular protrusion; 11. annular block; 12. placement seat; 13. second air hole; 14. limiting skirt.

[0026] Specific implementation method.

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figures 1-4 A fixture for automated fine grinding and polishing of medium and large diameter optical lenses, comprising a first support plate 1, a connecting seat is installed on the top of the first support plate 1, and the connecting seat includes a connecting pipe 2, the connecting pipe 2 is coaxially fixed on the top of the first support plate 1, and a thread groove 3 is opened on the inner wall of the connecting pipe 2 for threading the first support plate 1 to the fine grinding device (such as Figure 5 The mounting seat (as indicated by the arrow A in the middle) Figure 5 The mounting base is provided with a through hole, and a vacuum pump is installed on the top of the mounting base. A first air hole 5 is provided through the middle of the first support plate 1, which is used to draw the air below the first support plate 1 into the vacuum pump through the first air hole 5 and discharge it.

[0029] Furthermore, a first sealing ring 4 is installed on the top of the connecting pipe 2 to ensure the sealing of the connection between the connecting pipe 2 and the mounting seat.

[0030] An annular magnet 6 is installed at the bottom of the first support plate 1, and the middle part of the magnet 6 corresponds to the first air hole 5, and a second support plate 9 is arranged below the first support plate 1, and a hemispherical placement seat 12 is coaxially installed at the bottom of the second support plate 9, and a second air hole 13 is opened in the middle of the second support plate 9, and the second air hole 13 is arranged through the placement seat 12, and a magnetic annular block 11 is installed on the top of the second support plate 9, and the annular block 11 corresponds to the magnet 6. When installing the placement seat 12, the placement seat 12 can be directly placed under the first support plate 1, and the magnet 6 adsorbs the annular block 11 to fix the placement seat 12. This fixing method facilitates the disassembly of the placement seat 12 under the first support plate 1, and the placement seat 12 can be replaced according to the optical lens.

[0031] When fixing the optical lens, in order to ensure the stability of the lens being adsorbed at the bottom of the placement seat 12, an annular second sealing ring 8 is installed along the bottom edge of the first support plate 1 to ensure the airtightness between the first support plate 1 and the second support plate 9; a distance is left between the second sealing ring 8 and the magnet 6, so that an annular cavity 7 is formed between the second sealing ring 8 and the magnet 6, and an annular protrusion 10 is provided along the edge of the annular block 11. The annular protrusion 10 is arranged along the outer side of the annular block 11 and corresponds to the inner wall of the second sealing ring 8, wherein the annular protrusion 10 is a rubber block, that is, the annular protrusion 10 is placed in the annular cavity 7, which can provide a limit for the installation of the second support plate 9 under the first support plate 1 to ensure the alignment between the two air holes, and provide a movable buffer space for the upward movement of the second support plate 9 and the annular protrusion 10 when the optical lens is adsorbed, thereby improving the polishing accuracy.

[0032] It should be noted that the placement seat 12 is an elastic rubber block, and a limiting skirt 14 is installed along the bottom edge of the placement seat 12. The limiting skirt 14 is an annular rubber plate. When the optical lens is placed on the bottom of the placement seat 12, the limiting skirt 14 can wrap the edge of the lens, thereby limiting the placement of the lens at the bottom of the placement seat 12 and ensuring the stability of the lens during grinding and polishing.

[0033] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fixture for automated fine grinding and polishing of medium and large diameter optical lenses, characterized by: It comprises a first support plate (1), a connecting seat is installed on the top of the first support plate (1), and a first air hole (5) is provided through the middle of the first support plate (1); An annular magnet (6) is installed at the bottom of the first support disk (1), and the middle of the magnet (6) corresponds to the first air hole (5). A second support disk (9) is provided below the first support disk (1). A hemispherical placement seat (12) is coaxially installed at the bottom of the second support disk (9), and a second air hole (13) is provided in the middle of the second support disk (9). The second air hole (13) passes through the placement seat (12). A magnetic annular block (11) is installed on the top of the second support disk (9), and the annular block (11) corresponds to the magnet (6).

2. The fixture for automated fine grinding and polishing of medium- and large-diameter optical lenses according to claim 1, characterized in that: The placement seat (12) is a rubber block with elasticity.

3. The fixture for automated fine grinding and polishing of medium- and large-diameter optical lenses according to claim 1, characterized in that: A limiting skirt (14) is installed along the bottom edge of the placement seat (12), and the limiting skirt (14) is an annular rubber plate.

4. The fixture for automated fine grinding and polishing of medium- and large-diameter optical lenses according to claim 1, characterized in that: An annular second sealing ring (8) is installed along the bottom edge of the first support plate (1), and a gap is left between the second sealing ring (8) and the magnet (6), so that an annular cavity (7) is formed between the second sealing ring (8) and the magnet (6).

5. The fixture for automated fine grinding and polishing of medium- and large-diameter optical lenses according to claim 4, characterized in that: An annular protrusion (10) is provided along the edge of the annular block (11), and the annular protrusion (10) is provided along the outer side of the annular block (11) and corresponds to the inner wall of the second sealing ring (8), wherein the annular protrusion (10) is a rubber block.

6. The fixture for automated fine grinding and polishing of medium- and large-diameter optical lenses according to claim 1, characterized in that: The connecting seat comprises a connecting pipe (2), the connecting pipe (2) is coaxially fixed on the top of the first support plate (1), and a threaded groove (3) is provided on the inner wall of the connecting pipe (2).

7. The fixture for automated fine grinding and polishing of medium- and large-diameter optical lenses according to claim 6, characterized in that: A first sealing ring (4) is installed on the top of the connecting pipe (2).

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