多道次普通旋压渐开线轨迹设计及其在数值模拟中的应用  

Design of the involute trace of multi-pass conventional spinning and application in numerical simulation

作　　者：陈嘉[1] 万敏[1] 李卫东[1] 许成喜[2] 许旭东[2] 黄振彪[2] 

机构地区：[1]北京航空航天大学机械工程及自动化学院,北京100083 [2]成都飞机工业(集团)有限责任公司,成都610092

出　　处：《塑性工程学报》2008年第6期53-57,共5页Journal of Plasticity Engineering

摘　　要：系统分析了多道次普通旋压加工中单向式和往复式运动方式下旋轮渐开线轨迹的设计与生成。以同间距渐压式多道次为例,给出了渐开线的生成方法,确定了各道次起点,并根据体积不变原理提出了道次终点的确定方法,根据旋轮和渐开线的接触几何关系,推导出了旋轮中心轨迹方程,生成了单向式和往复式两种不同轨迹,并在有限元模拟中进行了应用,分析了在往复式轨迹下多道次普通旋压的等效应力和应变的分布及变化规律。为数控加工中旋轮运动设定和数字化旋压的实现提供了技术基础。This paper discusses the design of the one-way and reciprocating roller involute trace in multi-pass conventional spinning. Given same-space gradual-pressed pass as an example to generate involute and to identify the starting points of the passes, the method to fix the termination of the passes is posed according to Volume Constancy Principle. Two different traces-one-way and reciprocating traces-are generated, and eventually the roller center trace equation is deduced based on the contact geometric relationship between roller and involute. The trace has been used in numerical simulation and the distribution of equivalent stresses and stain has been analyzed. All of results provide technical basis for roller motion setting in CNC.

关 键 词：普通旋压 多道次 渐开线 轨迹 

分 类 号：TG302[金属学及工艺—金属压力加工]