【作者】 张银东；

【导师】 吴伏家；

【作者基本信息】 华北工学院 ， 机械设计制造及其自动化， 2004， 硕士

【摘要】 本文通过试验对DF深孔加工系统在排屑过程中各种形态切屑排屑效果的对比分析，确定了排屑效果最佳的切屑形态。并对深孔振动钻削的断屑机理进行了研究，得出振动钻削是通过几何断屑和力学断屑综合作用来实现断屑的，并确定了实现可靠几何断屑的条件和影响力学断屑的因素。以现有理论为基础，设计出了频率、振幅可调的机械式双偏心振动发生器，并与DF系统的抽屑器相结合，同时对原有系统的油路和钻头的结构进行改进，形成了具有振动断屑负压排屑功能的新深孔加工系统。最后，本文阐述了深孔加工技术的扩展应用，提出深孔加工技术和现在的冷拔、冷轧等技术相结合可以解决许多超长精密管件的制造难题。更多还原

【Abstract】 By comparison and analysis of ejecting effects of chips with multiform during the course of chip-rejecting in the experiment of DF(Double Feeder) deep-hole machining system, this dissertation ascertains chip form with effective chip-rejecting. And chip-breaking mechanism in the vibration drilling is studied in the paper. It is educed that chip-breaking in the vibration drilling is accomplished by synthesized actions of geometry and stress chip-breaking, and conditions that geometry chip-breaking can achieve and the functions that can influence stress chip-breaking have been discovered. Based on theories in existence, mechanical double-eccentricity vibration producer has been designed, integrated with DF negative-pressure drawing setting, with improvement on hydraulic pressure routine and structure of aiguilles, and has become a new deep-hole machining system with vibration and negative pressure. At last, the paper introduces application of deep-hole-drilling technology in manufacturing tubes, and treats that the tubes with super length and high machining accuracy, which are difficult to be manufactured in usual ways, can be made by technology of integrating deep-hole-drilling with cool drawing and cool rolling.更多还原