深圳龙岗诺仕机器人团队研发了一款仅1.5毫米的行星滚柱丝杠，这一微型精密零件成为手术机器人实现高精度操作的关键基础1。该丝杠通过将电机旋转力转化为稳定直线推力，采用滚柱线接触传动方式，相比传统滚珠丝杠的点接触设计，承载能力成倍提升1。制造这样的微型零件对精度要求极高，局部加工误差不能超过一根头发丝的二十分之一1。
这项微观工程技术已被应用于手术机器人的机械臂中，使其能够实现微米级精度的微创手术操作1。该零件的有效性已在临床手术中得到验证1。龙岗地区的国产手术机器人产品已经走出国门，进入国际市场1。
A robotics team based in Longgang, Shenzhen has engineered a planetary roller screw measuring just 1.5 millimeters in diameter, a breakthrough in miniaturized mechanical components designed to enhance the precision capabilities of surgical robots 1. The component converts motor rotational force into stable linear thrust with high load-bearing capacity and durability 1. Unlike traditional ball screws that rely on point contact transmission, this roller screw uses roller-line contact, multiplying load-bearing capability several times over 1. The manufacturing precision required is extraordinary, with local machining errors constrained to no more than one-twentieth the width of a human hair 1.
When integrated into surgical robot arms, this micro-scale component enables minimally invasive procedures with micrometer-level accuracy 1. The innovation has already been validated through clinical surgical applications, demonstrating its practical effectiveness in real-world medical settings 1. Domestically produced surgical robots incorporating this technology have already expanded beyond Chinese borders 1.
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