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介绍了面向航空连接装配的数控钻铣机设计及其误差相关技术研究。采用机器人学对数控钻铣机进行运动分析;通过分析四个移动轴滚珠丝杠误差得出移动轴坐标变换,并结合谐波减速器传动误差进行建模,最终得出六自由度的几何误差综合模型;利用该模型,对钻铣机整体进行精度分析,最终得到相关零件的制造精度及装配精度,对每个关节的公差进行优化分配,使得设计经济合理,减小加工制造成本,并为后期的误差补偿打好基础。
The design of CNC drilling and milling machine for aviation connection assembly and the research on the error related technology are introduced. The kinematics analysis was carried out on the CNC drilling and milling machine by robotics. The coordinate transformation of the moving axis was obtained by analyzing the error of the four moving axis ball screws, and the transmission error was used to model the harmonic reducer. Finally, the geometric error of six degrees of freedom The model is used to analyze the precision of the drilling and milling machine, and finally the manufacturing precision and assembly precision of the related parts are obtained. The tolerance of each joint is optimally distributed, which makes the design economical and reasonable, and reduces the manufacturing cost. Late error compensation lay a good foundation.