在车工一体化教学车削轴类零件的过程中,因实习指导教师的教学不够严谨、细致,分析不够透彻,极易使学生在学习过程中产生认知误差,常出现以外圆表面作为加工基准的错误工艺指导,导致加工的轴类零件无法达到形位精度的要求,出现批量报废,从而容易产生教学误区。为此,合理选择加工基准成为轴类零件车削的主要技能要素。 In the process of integrated turning lathe parts, the instructors’ teaching is not rigorous and meticulous enough and the analysis is not thorough enough. It is easy for students to make cognitive errors in the learning process, and the outer surface often appears as the machining reference Error process guidance, resulting in the processing of shaft parts can not meet the requirements of the position accuracy, there batch scrapped, which is prone to teaching errors. To this end, a reasonable choice of machining base shaft turning become the main skill elements.