The paper introduces the structure of the special-purpose machine for the machining of the hole on the engine side rack. It focuses on the design and optimizaion of the spindle.

• 摘要文章对机车侧架磨耗板安装孔加工专用机床的结构进行了分析和阐述，并重点介绍了专机主轴的设计及优化过程。