一个具有三度自由度的压电驱动微型抓手,具有姿势调节功能
1School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China.
The Review of scientific instruments
|April 11, 2025
概括
这项研究引入了一种具有三度自由度的新型压电微型抓手,可实现同时的多方向控制以增强微型操纵. 实验结果验证了它的高精度和高级应用的潜力.
科学领域:
- 微型机器人和MEMS (微型电机系统)
- 精密工程 精密工程是指精密的工程.
- 材料科学 材料科学 材料科学
背景情况:
- 传统的微型抓手往往缺乏同时的多方向控制,限制了微型操纵任务的灵巧性.
- 在微型抓手中实现高精度,紧性和可控性仍然是一个重大的工程挑战.
研究的目的:
- 介绍一款具有三度自由度 (3-DOF) 的创新型压电驱动微型抓手,配备集成的放大机制.
- 为了在紧过程中同时在x,y和z方向上调整位.
- 为了评估微型抓手的性能,用于先进的微操作应用.
主要方法:
- 设计和制造一个带有双阶段杆放大机制的压电驱动微型抓手.
- 基于矩阵的合规建模用于计算 x 方向的输出变形.
- 用于保持范围和结构强度验证的有限元分析 (FEA).
- 实验性调查以评估在不同电压和频率下性能和刚性.
主要成果:
- 微抓手实现了同时x,y和z运动控制,具有x方向紧,y方向旋转和z方向线性转换.
- 合规建模预测了x方向的141.39微米位移.
- 实验结果显示,X方向的放大比为8.7x,在219Hz时产生87.66μm的位移.
- 实现的最大速度为:508.85μm/s (y旋转在350Hz,70V) 和30.87μm/s (z转换在110Hz,67.5V).
结论:
- 开发的3-DOF压电微型抓手表现出高精度,紧性和可控性.
- 实验验证证证实了拟议设计的可行性和性能.
- 微型抓手显示出在微型组装,生物医学处理和精密制造领域的应用潜力很大.
更多相关视频
相关概念视频
01:21Upward Impending Motion
A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. Its operation is based on converting the force applied at its handle into a torsional moment, causing the upward impending motion of the screw. This movement is accomplished by overcoming the static friction between the threads of the screw and the jack.
To better comprehend how a screw jack functions, consider the completely unraveled thread as a block in contact with the...
To better comprehend how a screw jack functions, consider the completely unraveled thread as a block in contact with the...
01:16Self-Locking Screw
A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. One of the key features that can make a screw jack more effective and reliable is its self-locking capability.
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.
01:26PD Controller: Design
In automotive engineering, car suspension systems often employ Proportional Derivative (PD) controllers to enhance performance. PD controllers are utilized to adjust the damping force in response to road conditions. A controller, acting as an amplifier with a constant gain, demonstrates proportional control, with output directly mirroring input.
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...
Designing a continuous-data controller requires selecting and linking components like adders and integrators, which are fundamental in Proportional,...