中文摘要：

针对冷滚打成形中主轴受高频冲击的特点,对现有冷滚打主轴结构进行改进,给出了一种分体夹装式冷滚打主轴结构,并建立了相应的有限元分析模型。通过数值模拟的方法得到了该结构的模态和受力情况,验证了该结构的可行性。在此基础上,设计了用于C630车床的冷滚打实验用主轴,采用LMS系统得到了该主轴的前三阶模态,并通过和数值模拟方法所得结果进行对比,验证了有限元分析方法和结果的有效性。在C630车床上用该主轴结构对紫铜和20钢块料进行了冷滚打成形实验,进一步证明了分体夹装式冷滚打主轴结构的可行性。

英文摘要：

As for the characteristics of spindle impacted with the high frequency on cold roll-beating forming,a separate structure of cold roll-beating equipment＇s spindle was given by improving the existing spindle structure of cold roll-beating equipment,and the corresponding finite element model was established.The feasibility of this structure was proved with the modal and stress distribution of this structure which were obtained by the method of numerical simulation.Then the spindle used in the C630 lathe for cold roll-beating forming was designed,and the first three modes of this spindle were obtained using LMS system,then comparing the above results with the results of numerical simulation,the validity of the finite element analysis method and results was confirmed.The experiments shaping the copper and 20 steel by the technology of cold roll-beating were carried out on the C630 lathe with the above spindle structure shaping and further prove the feasibility of this separate structure of cold roll-beating equipment＇s spindle.