一、前言我国的机车车辆轮轴加工设备比较陈旧,加工精度低,目前所采用的轮轴加工工艺和配合制度也不统一,值得进一步探讨。现在有些单位在考虑等级选配和互换等问题,但是,也存在不少难以解决的问题。美国首先从轮轴加工设备入手,制造出高精 First, the foreword China’s rolling stock axle machining equipment is relatively old, low machining accuracy, the current wheel shaft machining technology and with the system is not uniform, it is worth further exploration. At present, some units are considering issues such as level matching and exchange. However, there are still many problems that are difficult to be solved. The United States first started with the axle processing equipment to create high precision