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Development and characterization of a microsnap-fit for optical assembly

机译：用于光学组件的微卡扣的开发和表征

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Snap-fits are classified as interlocking connections and commonly used to assemble two or more components in a fast and cost efficient way. The mechanism is simply based on mechanical flexibility. Therefore, the applications cover a broad field ranging from automotive engineering to mobile phone design. By scaling and transferring the snap-fit mechanism into micrometer scale, advantages can also be utilized to assemble complex microsystems. In this paper, a microsnap-fit based on a cantilever design is developed and investigated by means of optical techniques only. Two-photon polymerization as micro-stereolithography is utilized to manufacture the microcomponents and the mechanical flexibility is analyzed by optical forces in a holographic optical tweezer setup. The locking mechanism is theoretically and experimentally characterized, e.g, the flexibility of the polymer with regard to the design is studied. It can be demonstrated that assembling as well as disassembling of microcomponents is achievable. These findings provide fast and easy assembling of complex microsystems in the fields of microrobotics, -sensors, and -mechanics.
机译：卡扣配合被分类为互锁连接，通常用于以快速且经济高效的方式组装两个或多个组件。该机制仅基于机械灵活性。因此，应用范围涵盖从汽车工程到手机设计的广泛领域。通过将卡扣配合机构缩放并将其转换为微米级，还可以利用其优势来组装复杂的微系统。在本文中，仅基于光学技术开发和研究基于悬臂设计的微贴合。利用双光子聚合作为微立体光刻技术来制造微组件，并通过全息光学镊子装置中的光学力来分析机械柔韧性。锁定机理在理论上和实验上都有特征，例如，研究了聚合物在设计方面的柔韧性。可以证明，可以组装和拆卸微型部件。这些发现为微机器人，传感器和力学领域中的复杂微系统提供了快速简便的组装方法。

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