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(1)加工工艺分析及方案确定 深泵轴材质 45钢，外形尺寸 45× 1700mm，属于多台阶超长轴。根据零件精度要求，应采用两端顶尖进行调头车削加工，选用 CW6163机床最为合适。为了增强工件车削刚度，提高加工质量、精度，在机床主轴孔尾部设计安装了顶尖装置，将工件一部分伸入?
(1) Analysis of Processing Technology and Solution The deep-pump shaft material 45 steel and its outer dimensions 45 × 1700mm are multi-step long shafts. According to the requirements of precision parts, both ends should be used for turning the top turning, the most suitable choice of CW6163 machine. In order to enhance the turning rigidity of the workpiece and improve the processing quality and precision, the top device is designed and installed in the tail of the spindle hole of the machine tool, and part of the workpiece is extended into?