超声波齿面强化加工头的研究  

Research on Processing Tool in Ultrasonic Gear Flank Enhancement

作　　者：宋洪侠[1] 孔志营 孙伟志[1] 

机构地区：[1]大连理工大学精密与特种加工教育部重点实验室,辽宁大连116023

出　　处：《计算机仿真》2014年第2期307-310,319,共5页Computer Simulation

基　　金：中央高校基本科研费专项基金"渐开线圆柱齿轮齿面超声滚压强化理论与技术研究"(DUT12LAB07)

摘　　要：齿轮超声强化技术难点是加工头的研制。针对超声齿轮强化技术中不规则加工头的改进设计问题,提出了一种以点接触代替线接触的新方案。以超声系统沿纵向振动频率与超声波发生器外激频率保持一致为优化目标,应用有限元分析法,通过对改进结构进行模态分析和优化设计,以确定加工头的关键结构形状和尺寸。实验测量结果表明优化设计所得加工头能满足共振要求,其谐振频率模拟值与实验测量值基本一致。研究结果证明通过仿真优化设计得到的结果基本能够满足不规则加工头的设计要求,为设计不规则超声加工头提供了一种可行的研究思路和方法。A new idea concerning irregular processing tool design was put forward in the paper, which replaces the original line - contact ones with a point - contact tool. Using finite element analysis method, the key structure and dimensions of the improved tool were determined based on modal analyzing and optimization design to realize the optimization goal of the longitudinal vibration frequency of the tool coincided with the exciting frequency of the ultra- sonic generator. Experimental results demonstrate that the new tool can meet the resonant vibration requirement, and the simulated resonant frequency is basically consistent with experimental data. Therefore, the study proves that ir- regular tool design can be obtained by simulation and optimization based on software and the research idea and the method are feasible.

关 键 词：超声波 齿面强化 谐振频率 模态分析 仿真优化设计 

分 类 号：TH128[机械工程—机械设计及理论]