摘要
为了进一步提高双刀数控机床运动轨迹控制精度,根据轨迹规划要求设计了一种缩小双刀引起顶铣削非线性误差的新算法。在分析九轴联动机床构建转换模型的基础上,表征了双刀具加工时工件回转轴产生的非线性误差评价效果。仿真结果表明,叶背曲面相对叶盆曲面形成了更大的的非线性误差,进行插值处理前,叶背曲面非线性误差初始值超差。算法完成差值优化后可以控制加工误差达到公差设计要求,进一步提升了轨迹线和叶片型面之间的贴合性,有助于叶片型面获得更高加工精度。
In order to further improve the motion trajectory control accuracy of dual-tool CNC machine tools,a new algorithm to reduce the nonlinear error of top miling caused by dual-tool is designed according to the trajectory planning requirements.On the basis of analyzing the nine-axis linkage machine tool to build a conversion model,the evaluation effect of the nonlinear error generated by the rotary axis of the workpiece during the machining of the dual-tool tool is characterized.Simulation results show that the leaf dorsal surface forms a larger nonlinear error relative to the leaf basin surface,and the initial value of the nonlinear error of the leaf dorsal surface is super poor before interpolation.The algorithm in this paper can control the machining error to meet the tolerance design requirements affer completing the difference optimization,which further improves the fit between the trajectory line and the blade profile,and helps the blade profile to obtain higher machining accuracy.
作者
刘小翠
张立彪
Liu Xiaocui;Zhang Libiao(School of Intelligent Manufacturing and Transportation,Henan Logistics Vocational College,Zhengzhou Henan 453514,China)
出处
《机械管理开发》
2024年第6期22-23,26,共3页
Mechanical Management and Development
关键词
双刀铣削
非线性误差
轨迹优化
数控机床
two-tool milling
nonlinear error
trajectory optimization
CNC
作者简介
第一作者:刘小翠(1993-),女,河南新乡人,本科,毕业于河南科技大学建筑环境与设备工程专业,助教,主要从事智能制造方面工作。
