针对棒材冲击试样加工在车削加工过程中无法实现同时加工V型冲击缺口,导致计件生产率低的情况,通过运用CNC机床控制系统中的C轴功能,建立起一套三轴联动数控机床运动学几何模型,实现棒材冲击试样方形体部分中间缺口的复合切削,保证了试样的单件工序时间要求和设计图样要求。 Aiming at the processing of the sample of the impact of the bar In the process of turning, the V-shaped impact notch can not be processed at the same time, resulting in the low productivity of the piece counting. By using the C-axis function in the CNC machine control system, a set of three- The geometrical model can realize the compound cutting of the middle notch of the square body part of the impact specimen of the bar to ensure the time requirement and the design pattern requirement of the single piece of the specimen.