通过对多轮旋压时的力分析,指出了影响旋压薄壁无缝管精度诸因素的产生原因及解决办法。文章对运用三旋轮精确微调机构与特殊浮动铰机构的匹配解决高精度薄壁管的精度问题作了阐说。文章总结了多年来在旋压研究中的实践经验,介绍了新机构的内容及其经济效益。 Through the analysis of the multi-wheel spinning force, the causes of the various factors that affect the precision of the thin-walled seamless pipe spinning and the solutions are pointed out. The article elaborates the problem of using the precision trimming mechanism of the three-roller wheel and the special floating hinge mechanism to solve the precision problem of the high-precision thin-walled tube. The paper summarizes the practical experience in spinning research over the years, and introduces the contents of the new organization and its economic benefits.