一种高精度数控车床的主轴装配工艺设计

为了达到数控机床的高精度技术要求,对主轴组件的关键部件进行了严格的动平衡校核工艺规划.结合主轴组件特性,制定了主轴定向装配法方案.主轴轴承装配采用隔套双定位方法,为避免装配过程中隔套的过定位现象,对隔套进行了结构分析优化,并设计了隔套以研代磨的加工工艺,确保轴承的装配精度.实践证明主轴装配工艺的设计方案能够满足机床主轴动态特性的相关技术要求.

The spindle assembly process design of a high-precision CNC lathe

The dynamic balance process of major parts of spindle was planned to achieve the technique of the high-precision CNC lathe.The directional assembly approach of the spindle was used for the assembly process according to the features of major parts.The double-location approach of the isolation cylinders was used to assemble the bearings of spindle.The structure of the cylinders were analyzed and optimized to avoid the over location.The grinding process substituting for the milling process of the cylinders manufacturing was designed to make sure the assembly accuracy of the bearings.The experience shows that the assembly process is suitable for the relevant technical requirements of the dynamic parameters of the spindle.