立卧进给系统多柔体模型丝杠振动仿真分析

The Simulation Analysis of the Multi-flexible Body Model of the Vertical and Horizontal NC Lathe Feeding System

以高精密立式和高精密卧式机床为研究对象,利用FEM技术建立高精密立式和卧式机床的进给系统刚性模型,然后利用VP技术对各零部件进行网格划分,替换刚性体,建立起进给系统多柔体模型。通过添加不同方向的切削力分别建立高精密立式和卧式机床多柔体模型。研究立式机床和卧式机床进给系统丝杠振动特性的不同,对比其在一定范围内的精确度,以选择合适的机床。论文中选择高精度的卧式机床。

With high precision and high precision vertical horizontal machine tool feed system as the research object,the rigid model utilized FEM technology to build the high precision vertical and horizontal machine tool,and then use the VP technology to mesh parts,replacing the rigid body,establish the multi-flexible body mode of feeding system.By adding the cutting forces in different directions,the multi-body model of high precision vertical and horizontal machine tools is established.The vibration characteristics of the feed system of the vertical machine tool and the horizontal machine tool feed system are studied.In this paper,the selection of horizontal NC lathe.