Clamping device for optical lens machining

Abstract

The utility model provides a clamping device for optical lens processing, which comprises a tool seat, a clamp is arranged on the tool seat, the tool seat comprises a right flange and a left flange, one end of the clamp is provided with an external thread structure, an air chamber is arranged in the clamp and is connected with an adsorption device on a lathe, and the adsorption device is connected with the right flange and the left flange. The other end of the clamp is provided with an arc-shaped end face, and a lens is adsorbed on the arc-shaped end face. According to the utility model, the tool seat is matched with the fixture part, so that the connection between the lathe and the fixture is realized, the time for replacing different fixtures is greatly shortened, and the production efficiency is improved; the end face, combined with the lens, of the clamp is designed to be of an arc-shaped structure with different R values, the adsorption force between the clamp and the lens can be enhanced, the machining precision is guaranteed, the action force borne by the lens is buffered while a user machines the lens conveniently, the lens is prevented from being damaged by a clamping device, and the clamp can be replaced quickly.

Description

Technical Field

[0001] This utility model belongs to the field of optical processing equipment technology, and specifically relates to a clamping device for optical lens processing. Background Technology

[0002] With the continuous development of optical science, the application range of various optical components is gradually expanding, and the demand is increasing day by day. Among them, optical lenses are a very important component, widely used in the manufacture of optical instruments, such as SLR cameras, high-end scanners, telescopes, and microscopes. In the manufacturing process of optical lenses, lathe machining is a crucial step. During lathe machining, the lens rotates, and the cutting tool feeds. Friction and cutting forces are generated between the cutting tool and the lens, gradually cutting the lens material to achieve the desired shape and size. To ensure the shape and size of the lens, and to improve machining accuracy and efficiency, the design of the fixture and its connection with the lathe become particularly important. Currently used fixtures have simple structures. When installing the fixture onto the lathe, glue is used to fix the fixture to the lathe. Then, the lens to be machined is adjusted to a suitable position on the fixture. The air in the fixture's air chamber is extracted, and atmospheric pressure is used to fix the lens to the fixture. Adhesive tape is also added at the contact points between the fixture cavity and the lens to ensure a more secure adhesion. Existing lens clamps are generally cylindrical. The lens is placed at one end of the clamp and fixed by air pressure. This clamping method results in the lens being stressed around its perimeter, with a small stress area. Although measures have been taken to reduce the pressure, the lens is still prone to breakage. Furthermore, when processing a large number of lenses of different sizes, different clamps need to be changed. The clamping process is cumbersome, inconvenient to use, and affects production. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a clamping device for optical lens processing.

[0004] The technical solution of this utility model is implemented as follows: A clamping device for optical lens processing includes a tooling base, on which a clamp is provided. The tooling base includes a right flange and a left flange, which are fixedly connected by multiple bolt holes and bolts. A threaded hole is provided in the middle of the tooling base, including a threaded hole for the right flange and a threaded hole for the left flange. One end of the clamp is provided with an external thread structure. The threaded hole of the left flange is connected to the extension shaft of a lathe. The threaded hole of the right flange is connected to the end of the clamp with the external thread structure. An air chamber is provided inside the clamp, which is connected to an adsorption device on a lathe. The other end of the clamp is provided with an arc-shaped end face, at which a lens is adsorbed.

[0005] Preferably, the arc-shaped end face of one end of the clamp corresponds to the arc angle of the lens;

[0006] Preferably, the threaded hole in the middle of the tooling base rotates in the opposite direction to the rotation direction of the lathe.

[0007] The beneficial effects of this utility model are as follows: This utility model designs one end of the fixture with a uniform external thread diameter that can connect with the tooling base. Through the thread structure, the tooling base and the fixture components are matched to realize the connection between the lathe and the fixture, replacing the original method of fixing the fixture with glue. This greatly shortens the time required to change different fixtures and improves production efficiency. The end face of the fixture that connects with the lens is designed with an arc structure with different R values. This not only enhances the adsorption force between the two and ensures the processing accuracy, but also facilitates the user's processing while buffering the force on the lens, avoiding damage to the lens itself from the clamping device, and also facilitates quick fixture replacement. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model;

[0009] Figure 2 This is a schematic diagram of the structure of the clamp of this utility model;

[0010] Figure 3 This is a left view of the tooling base of this utility model;

[0011] Parts Description: 1. Tooling base, 2. Right flange threaded hole, 3. Right flange, 4. Left flange, 5. Left flange threaded hole, 6. Bolt hole, 7. Threaded hole, 8. Air chamber, 9. Fixture external thread, 10. Fixture, 11. Arc end face, 12. Lens. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0013] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0014] See attached document Figure 1-3A clamping device for optical lens processing includes a fixture 1, which is a flange assembly with bolt holes 6 around its perimeter and a threaded hole 7 in the center. A clamp 10 is mounted on the fixture 1. One end of the clamp 10 has an external thread structure 9, and an air chamber 8 in the center for air communication. The other end has an arc-shaped end face 11. The fixture 1 is connected to the lathe's extension shaft through the internal threaded hole 5 of the left flange. The threaded hole 7 in the center of the fixture 1 rotates in the opposite direction to the rotational motion of the lathe. The left flange 4 and right flange 3 of the fixture 1 are connected by eight bolt holes. Bolt hole 6 is connected to bolt. Fixture 10 is connected to the right flange internal thread hole 2 of tooling seat 1 through external thread structure 9. The arc end face 11 of fixture 10 is designed with different R values ​​to hold lenses 12 of different sizes. This not only enhances the adsorption force between fixture 10 and lens 12 and ensures stability during processing, but also protects lens 12. If different sizes of lenses need to be processed, simply unscrew the fixture and replace it with a fixture corresponding to the lens being processed. The replacement is simple and convenient.

[0015] The air chamber 8 on the fixture 10 is connected to the adsorption device on the lathe, which discharges the air from the air chamber 8 of the fixture 10. Under the action of atmospheric pressure, the lens 12 is firmly fixed on the fixture 10, ensuring the positional accuracy requirements during processing.

[0016] When the lathe is turned on, the lathe's adsorption device expels most of the air from the air chamber 8, and uses atmospheric pressure to firmly adsorb the lens 12 onto the arc-shaped end face 11 of the fixture 10. The rotational motion power of the lathe is transmitted to the lens 12 through the tooling seat 1 and the fixture 10. The lens 12 rotates, and the cutting tool feeds, ultimately machining the lens 12 into the required shape and size.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A clamping device for optical lens processing, characterized in that... The fixture includes a fixture (1), on which a clamp (10) is provided. The fixture (1) includes a right flange (3) and a left flange (4). The right flange (3) and the left flange (4) are fixedly connected by multiple bolt holes (6) and bolts. The fixture (1) has a threaded hole (7) in the middle. The threaded hole (7) includes a right flange threaded hole (2) and a left flange threaded hole (5). One end of the clamp (10) is provided with an external thread structure (9). The left flange threaded hole (5) is connected to the lathe extension shaft. The right flange threaded hole (2) is connected to the end of the clamp provided with the external thread structure (9). The clamp is provided with an air chamber (8) inside. The air chamber (8) is connected to the adsorption device on the lathe. The other end of the clamp (10) is provided with an arc-shaped end face (11). The lens (12) is adsorbed at the arc-shaped end face (11).

2. The clamping device for optical lens processing as described in claim 1, characterized in that... The arc-shaped end face (11) of one end of the clamp (10) corresponds to the arc angle of the lens (12).

3. The clamping device for optical lens processing as described in claim 1, characterized in that... The threaded hole (7) in the middle of the tooling seat (1) rotates in the opposite direction to the rotation direction of the lathe.

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