中国机械工程 ›› 2026, Vol. 37 ›› Issue (1): 114-125.DOI: 10.3969/j.issn.1004-132X.2026.01.013

• 机械基础工程 • 上一篇    

可轮换用动平台三自由度并联机构的拓扑设计及其性能分析

朱潇(), 沈惠平(), 李菊, 李涛, 叶鹏达, 朱伟   

  1. 常州大学现代机构学研究中心, 常州, 213164
  • 收稿日期:2024-09-28 出版日期:2026-01-25 发布日期:2026-02-05
  • 通讯作者: 沈惠平
  • 作者简介:朱潇,女,2001年生,硕士研究生。研究方向为并联机器人机构学。E-mail:18796167749@139.com
    沈惠平*(通信作者),1965年生,教授、博士研究生导师。研究方向为机器人机构学。发表论文320篇。E-mail:shp65@126.com
  • 基金资助:
    国家自然科学基金(52375007);常州智能制造龙城实验室项目(CJ20242061);江苏省产业前瞻与关键核心技术重点项目(BE2021016-2);江苏省产业前瞻与关键核心技术重点项目(BE2021016-4)

Topological Design and Performance Analysis of 3-DOF Parallel Mechanisms with Alternately Used Moving Platforms

ZHU Xiao(), SHEN Huiping(), LI Ju, LI Tao, YE Pengda, ZHU Wei   

  1. Research Center for Advanced Mechanism Theory,Changzhou University,Changzhou,Jiangsu,213164
  • Received:2024-09-28 Online:2026-01-25 Published:2026-02-05
  • Contact: SHEN Huiping

摘要:

根据基于方位特征方程的并联机构拓扑设计理论和方法,设计了一种通过轮换使用动平台产生两种输出运动的三自由度并联机构。分析计算了该机构在两种模式下的以下特性:包括方位特征、自由度和耦合度的拓扑特征;符号式位置正反解、工作空间和奇异性的运动学性能;驱动力变化的动力学性能。然后,以可达工作空间为目标对机构尺寸进行了优化设计。最后对该机构在自动包装物件生产的应用场景进行了概念设计。

关键词: 并联机构, 拓扑学, 可轮换用动平台, 运动学, 动力学, 优化设计

Abstract:

According to the theory and method of topological design for parallel mechanisms based on azimuthal characteristic equations, a 3-DOF parallel mechanism with alternately used moving platforms was designed. The mechanism generated two output motion modes by swapping the moving platform. The characteristics of the mechanism such as topological characteristics, kinematics performance, and dynamics performance were analyzed and calculated under two different modes. Topological characteristics were composed of position and orientation characteristics, degrees of freedom, and coupling degree. Kinematics performances were composed of symbolic forward and inverse position solutions, workspace, and singularity. Dynamics performances were composed of driving force variations. Then, the dimensional parameters of the mechanisms were subjected to an optimal design with the goal of achieving a reachable workspace. Finally, a conceptual design was conducted for the application scenario of using the mechanisms in automated object packaging productions.

Key words: parallel mechanism, topology, alternately used moving platform, kinematics, dynamics, optimal design

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