摘要
榫槽是航空发动机涡轮盘上的关键结构之一。为了提高榫槽加工效率与表面质量一致性,提出了一种适用于涡轮盘榫槽加工的机器人化自动拉磨与测量方案。首先,结合机器人本体、柔顺末端执行器、末端轮廓仪及自动换刀研磨膏涂覆等机构,设计了机器人化自动拉磨与测量系统;然后,规划了自动化加工与测量流程,并根据主动力控制和输入整形技术,实现了稳定柔顺力控下的涡轮盘榫槽面拉磨;最后,对涡轮盘榫槽进行了正交实验,获得了保证榫槽表面质量下的高效率加工参数。研究结果表明:拉磨表面三个齿的平均凸起量波动方差分别为0.1116μm^(2)、0.1196μm^(2)、0.1088μm^(2),相应的平均表面凸起量分别为9.40μm、11.23μm、11.64μm。与传统人工拉磨方法相比,该系统不仅提高了50%以上的加工效率,还基于稳定闭环力控制保证了涡轮盘榫槽面的加工一致性。该方法显著提高了涡轮盘榫眼加工的效率和表面质量一致性。
The mortise is one of the critical structural features on the turbine disk.To enhance the processing efficiency and surface quality consistency of the mortise,a robotic automated honing and measurement system specifically designed for turbine disk mortise processing is proposed.Firstly,a robotic automated honing and measurement system was designed by integrating the robot body,a compliant end effector,an end-profile profiler,and mechanisms for automatic tool changing and grinding paste application.Secondly,the development of an automatic processing flow was involved.Force control and input shaping technology were employed to achieve stable,compliant force-controlled honing of the turbine disk mortise surface.The system was calibrated to maintain the required surface quality under force-controlled conditions,ensuring that the honing process could proceed with high precision.Finally,an orthogonal experiment was conducted on the turbine disk mortise to obtain high-efficiency processing parameters while ensuring the surface quality of the mortise.The experimental results indicate that the average fluctuation variance of the surface protrusions for the three teeth during the honing process is respectively 0.1116μm^(2),0.1196μm^(2),and 0.1088μm^(2).The corresponding average surface protrusions are 9.40μm,11.23μm,and 11.64μm.Comparing to traditional manual honing methods,the robotic system not only improves processing efficiency by more than 50%,but also ensures the consistency of the turbine disk mortise surface through stable closed-loop force control.This approach provides a significant improvement in both the efficiency and surface quality consistency of turbine disk mortise processing.
作者
赖敏松
张俊洁
黎先才
李正康
谭先见
吴宁宁
陈亮
刘媛媛
汤旭
LAI Minsong;ZHANG Junjie;LI Xiancai;LI Zhengkang;TAN Xianjian;WU Ningning;CHEN Liang;LIU Yuanyuan;TANG Xu(Hunan South General Aviation Engine Co.,Ltd.,Zhuzhou 412000,China;School of Mechanical Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)
出处
《机电工程》
北大核心
2025年第8期1552-1562,共11页
Journal of Mechanical & Electrical Engineering
基金
国家自然科学基金资助项目(52375496)
湖北省自然科学基金资助项目(2021CFA075)。
关键词
机械制造工艺
柔顺力控
自动化拉磨与测量
涡轮盘
榫槽加工
表面质量
mechanical manufacturing technology
compliant force control
automated grinding and measurement
turbine disk
tenon and groove processing
surface quality
