【摘要】 航空航天、新能源汽车及轨道交通等高端制造领域对整体式复杂构件的高效高精度加工需求快速增长。为满足新能源汽车后地板等整体式复杂构件的高效率加工需求，研制了三主轴五轴联动卧式加工中心，提出了双主轴并排布置且与第三主轴对侧布置的整体布局方案，创新设计了偏心结构主轴双摆头，并基于ANSYS Workbench软件对主轴摆头进行变形分析，以提高设计精度。采用Siemens RMVM软件构建机床-工件-刀具一体化虚拟仿真模型，对运动规划进行仿真分析，并通过实验验证。结果表明，三主轴加工中心加工效率相比于双主轴设备加工效率提升41.9%，主轴同步率达到96.5%，可为大型整体式复杂构件的高精度、高效率加工提供可行方案。更多还原

【Abstract】 The demand for high-efficiency and high-precision machining of monolithic complex components is rapidly increasing inhigh-end manufacturing sectors such as aerospace,new energy vehicles,and rail transportation. To meet the high-efficiency machi-ning requirements of monolithic complex components,such as the rear floor of new energy vehicles, a three-spindle five-axis link-age horizontal machining center is developed. An innovative layout scheme is proposed,featuring a dual-spindle side-by-side ar-rangement and a third spindle positioned oppositely. A novel eccentric spindle dual-swing head is designed,and deformation anal-ysis of the spindle swing head is conducted via ANSYS Workbench software to improve the design accuracy. A virtual simulationmodel integrating machine tool-workpiece-tool is established using Siemens RMVM software to perform motion planning and simu-lation analysis,with experimental validation. The results demonstrate that the machining efficiency of the three-spindle machiningcenter is improved by 41.9 % compared to dual-spindle equipment,with a spindle synchronization rate of 96.5 %. This provides afeasible solution for the high-precision and high-efficiency machining of large monolithic complex components.更多还原