【摘要】 针对大型空间望远镜在轨组装需求增加及其主镜接口设计的关键技术问题，采用一种基于圆柱凸轮机构的对接接口锁紧机构设计。通过对机构关键零件的设计与校核，进行了望远镜模块对接锁紧过程的容差分析，并利用ANSYS软件对机构的承载能力进行了分析及校核。对于圆柱凸轮锁紧机构从动件运动加速度过大，不适合直接用于望远镜模块锁紧机构的问题，采用统一函数法对圆柱凸轮锁紧机构的曲线槽进行了优化设计，确定了基于改进余弦等速运动规律的曲线槽设计方案，并验证了该方案的优越性。最后，通过7自由度机械臂系统进行了望远镜主镜地面模拟组装实验，验证了所设计接口的对接锁紧和释放功能的有效性。更多还原

【Abstract】 Focusing on the increasing demand for on-orbit assembly of large space telescopes and the critical technical issues in the design of their primary mirror interfaces, a design based on a cylindrical cam mechanism for a docking interface locking mechanism was adopted in this study. Through the design and verification of key components of the mechanism, a tolerance analysis of the telescope module docking and locking process was conducted, and the bearing capacity of the mechanism was analyzed and verified using ANSYS software. Addressing the issue of excessive acceleration of the driven part in the cylindrical cam locking mechanism, which made it unsuitable for direct use in telescope module locking mechanisms, the curve groove of the cylindrical cam locking mechanism was optimized using the unified function method. A design scheme based on an improved cosine uniform motion law for the curve groove was determined, and the superiority of this scheme was verified. Finally, a ground-based simulation assembly experiment of the telescope’s primary mirror was conducted using a 7-DOF robotic arm system, which verified the effectiveness of the designed interface’s docking, locking, and release functions.更多还原