近年工業4.0興起，世界在生產設備上的機械手臂需求增加，工廠生產線上高度需要旋轉至直線運動的導螺桿傳動單元。傳統式螺桿因有接觸力摩擦，易導致螺紋磨耗，需進行定期的保養與更換。有一些應用場域是難以進行保養，在此需求下，本文使用磁性螺桿非接觸之優點，且擁有過載保護優勢，以求能解決此問題。
本文共提出兩種實現磁性螺桿之方法，一種是利用3D列印硬磁技術，解決磁性螺桿之螺旋式磁鐵不易製作之困難，是將整段螺旋磁鐵分段列印，並逐一充磁與黏貼，形成整段螺旋之磁鐵；另一種則使用3D列印軟磁材料，而將釹鐵硼磁鐵製入其中，透過導磁材料的設計將磁通引入氣隙，以達到磁性螺桿之效果。

In response to the rise of Industry 4.0, the global demand for robotic arms on pro-duction equipment has increased. There is a high demand for a lead screw drive unit that converts rotary motion into linear motion on the factory production line. The traditional screw has the problem of contact force friction, which easily leads to thread wear and requires regular maintenance and replacement. In addition, in certain applications, such as under vacuum conditions, are difficult to perform the maintenance. Under above con-siderations, this research takes the advantages of non-contact and overload protection of magnetic screws to solve the said problems.

This study proposes two methods to realize the magnetic screw. Firstly, 3D printing technology on hard magnetic material was adopted to solve the problem of high difficulty in manufacturing the spiral magnet of the magnetic screw. The entire spiral magnet was designed to be separated into sections and fabricated via 3D printing section by section, and then each section was magnetized and pasted to form the spiral magnet. The other proposed method is to use 3D printing technology on soft magnetic material, NdFeB. By the design of the magnetic material, magnetic flux was introduced into the air gap to achieve the effect of the magnetic screw.

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