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相关概念视频

Machines: Problem Solving I01:22

Machines: Problem Solving I

279
A toggle clamp is a mechanical device commonly used for holding and clamping objects in various applications, such as woodworking, metalworking, and assembly operations. Consider a toggle clamp subjected to a force of 200 N at the handle. The vertical clamping force can be calculated, provided the dimensions of the toggle clamp are known.
The toggle clamp system is a machine structure consisting of movable, pin-connected multi-force members that form a stabilized system to transmit forces. The...
279

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基于折叠的矩形链的高精度约束式压力驱动微型抓手的设计.

Xiaodong Chen1, Huifeng Tan2

  • 1School of Mechanical Engineering, Shenyang Ligong University, Shenyang 110000, China.

The Review of scientific instruments
|March 18, 2025
PubMed
概括

这项研究引入了一种新的微型抓手机制,使用折叠的矩形链,可显著减少80%的寄生虫运动. 这种设计可以提高紧固的准确性,用于精确的微操作任务.

科学领域:

  • 机械工程 机械工程
  • 机器人技术 机器人技术 机器人技术
  • 微力学是微力学的一个方面.

背景情况:

  • 四条平行图机制在微型抓手中普遍存在,因为它的平行紧.
  • 旋转时的寄生垂直移位限制了传统机制的精度.

研究的目的:

  • 通过减少寄生虫运动来开发高精度的微型抓手.
  • 通过创新的结构设计来提高紧的准确性.

主要方法:

  • 引入了带有折叠矩形链的抑制放大机制.
  • 使用气动驱动器来实现大输出力和位移.
  • 应用卡斯蒂格利亚诺第二定理来推导输入压力-位移关系.

主要成果:

  • 与传统机制相比,相对寄生虫迁移减少了80%.
  • 气动驱动有效地弥补了链的输出位移减少.
  • 实验验证显示,微型抓手实现了平行紧,比FEA有2.0%的误差.

结论:

  • 可折叠的矩形链显著提高了微型具的紧固精度.
  • 这种新的机制设计有效地减少了寄生虫的迁移.

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  • 气动驱动适合这种微型抓手,确保足够的力和位移.