• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2025, Vol. 61 ›› Issue (21): 389-402.doi: 10.3901/JME.2025.21.389

• 特邀专栏:纪念张启先院士诞辰 100 周年 • 上一篇    

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面向复杂曲面集群加工的混联机构设计与分析

赫利涛1,2, 房海蓉1,2, 陈宇飞1,2, 金政贤1,2   

  1. 1. 北京交通大学机械与电子控制工程学院 北京 100044;
    2. 北京交通大学机器人研究中心 北京 100044
  • 收稿日期:2025-02-19 修回日期:2025-07-06 发布日期:2025-12-27
  • 作者简介:赫利涛,男,1998年出生,博士后。主要研究方向为机器人机构学、多机器人协同轨迹规划。E-mail:lthe@bjtu.edu.cn
    房海蓉(通信作者),女,1968年出生,博士,教授,博士研究生导师。主要研究方向为机器人机构学、智能制造与装备。E-mail:hrfang@bjtu.edu.cn
    陈宇飞,男,1990年出生,博士研究生。主要研究方向为机器人设计与控制算法开发。E-mail:cyf@bjtu.edu.cn
    金政贤,男,1999年出生,博士研究生。主要研究方向为智能制造装备设计及自动化。E-mail:24110371@bjtu.edu.cn
  • 基金资助:
    中央高校基本科研业务费专项资金资助项目(2023JBZX009)。

Design and Analysis of a Hybrid Mechanism for Cluster Machining of Complex Curved Surface

HE Litao1,2, FANG Hairong1,2, CHEN Yufei1,2, JIN Zhengxian1,2   

  1. 1. School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044;
    2. Robotics Research Center, Beijing Jiaotong University, Beijing 100044
  • Received:2025-02-19 Revised:2025-07-06 Published:2025-12-27

摘要: 为满足未来多任务场景下航天运载器贮箱加工需求,实现大型复杂曲面高质量、高效率加工,提出一种多机器人混联单元集群加工方法,并围绕其中的机器人混联单元构型设计难题,重点开展混联机构的设计与分析。首先,通过分析复杂曲面加工任务需求,构建了分区域协同作业的多机器人混联单元集群加工模式,并确定了机器人混联单元的功能要求。然后,设计了一种新型可重构大伸展6-PRRRR-P1-SP2S混联机构,并分析了其重构模式、自由度以及运动学。接着,以典型重构构型6-PRRRR-SP2S混联机构为对象,通过开展运动学性能分析以及尺寸优化,有效提升了各项性能。最后,利用运动学理论计算与仿真分析,并搭建缩比样机实验平台,验证了机构功能可以满足要求。设计的可重构大伸展混联机构具有工作空间大、灵巧性高、刚度大的特点,为工程应用提供了理论支撑,未来可应用于大型贮箱复杂曲面的集群加工。

关键词: 大型复杂曲面, 集群加工, 混联机构, 构型设计, 性能分析

Abstract: To meet the demand for machining of space vehicle storage tanks in future multi-mission scenarios and to realize high-quality and high-efficiency machining of large complex curved surfaces, a multi-robot hybrid unit cluster machining method is proposed, and focuses on the design and analysis of the hybrid mechanism around the design problem of the robot hybrid unit. First, by analyzing the demand of complex surface machining tasks, the multi-robot hybrid cell cluster machining mode of sub-area cooperative operation is constructed, and the functional requirements of the robot hybrid unit are determined. Then, a novel reconfigurable large extension 6-PRRRR-P1-SP2S hybrid mechanism is designed, and its reconfiguration mode, degrees of freedom, and kinematics are analyzed. Then, taking the typical reconfigurable configuration 6-PRRRR-SP2S hybrid mechanism as an example, the kinematic performance analysis and dimensional optimization are carried out to effectively improve the performances. Finally, using the kinematic theory calculation and simulation analysis, and making a scaled-down prototype experimental platform, it is verified that the function of the mechanism can meet the requirements. The reconfigurable large extension hybrid mechanism designed is characterized by large workspace, high dexterity, and high stiffness. It provides theoretical support for engineering applications, and can be applied to cluster machining of large complex curved surfaces in the future.

Key words: large complex surfaces, cluster machining, hybrid mechanism, configuration design, performance analysis

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