A coating equipment for lens processing

By innovating the placement ring and clamping components, the problems of low clamping efficiency and inaccurate positioning in lens coating equipment are solved, achieving efficient and stable lens fixing and uniform coating, reducing the coating eccentricity defect rate, and making it suitable for mass production of lenses of various specifications.

CN224313639UActive Publication Date: 2026-06-02DONGGUAN DINGLI OPTICAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN DINGLI OPTICAL TECHNOLOGY CO LTD
Filing Date
2025-07-16
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing lens coating equipment suffers from low clamping efficiency and insufficient positioning accuracy when placing lenses, resulting in uneven coating and misalignment. Furthermore, it is incompatible with multiple lens specifications, increasing production costs.

Method used

A coating device including a placement ring and a clamping assembly was designed. The placement ring has multiple placement slots, each equipped with a symmetrical clamp. Mechanical self-locking clamping is achieved through the linkage structure of a fixing block, a fixing rod, and a rotating rod. Combined with a spring to provide a restoring force, the clamps are ensured to automatically return to their original position. The groove limit design of the clamps prevents the lens from tilting. The limiting groove of the retaining ring is precisely aligned with the placement slot, realizing rapid fixation and uniform clamping of the lens.

Benefits of technology

It significantly improves lens clamping efficiency and stability, reduces coating eccentricity defect rate to below 0.3%, is suitable for mass production, and ensures coating uniformity and lens optical performance.

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    Figure CN224313639U_ABST
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Abstract

This utility model discloses a coating equipment for lens processing, including a housing. A fixed shaft is connected to the housing via a drive device. A placement assembly is provided at the bottom of the fixed shaft, and a placement ring is placed within the placement assembly. The placement ring has placement grooves, and each placement groove contains a clamping assembly. The placement ring has a retaining ring that mates with it, and the retaining ring has a limiting groove that mates with the placement groove. This utility model significantly improves the efficiency and stability of lens fixation through an innovative clamping assembly design. The placement ring has multiple placement grooves, each equipped with a symmetrical clamp. Combined with the linkage structure of the fixing block, fixing rod, and rotating rod, a mechanical self-locking mechanism is formed. When the retaining ring is pressed in, the moving block is forced downwards, and the force is converted into horizontal displacement of the clamp through the rotating rod, thereby evenly clamping the lens. The restoring force provided by the spring ensures that the clamp automatically returns to its original position after the retaining ring is removed.
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