单激励超声振动车削装置的结构及其切削方式优化

2018-07-13

作者：秦金元1，2，董志国1，2，轧刚1，2，刘建成3 单位：1太原理工大学；2精密加工山西省重点实验室；3美国太平洋大学

摘要：设计单激励超声振动车削装置通常采用车刀轴向与变幅杆轴向相垂直的结构，切削方式比较单一，主要采用主切削力方向振动的方式进行加工。本文分析了现有结构及切削方式的不足，提出车刀轴向与变幅杆轴向一致的结构，并采取新的复合振动。根据原理进行分析，通过AdvantEdge FEM进行仿真，论证新结构及切削方式的可行性，并指出脆硬材料和塑性材料在超声振动车削中的不同之处。

关键词：振动车削；结构改进；原理分析；有限元仿真

中图分类号：TG506；TH122；TH164文献标志码：A

Improvement on Structure of Ultrasonic Vibration TurningDevice and Cutting Method

Qin Jinyuan，Dong Zhiguo，Ya Gang，Liu Jiancheng

Abstract:The design of single incentive ultrasonic vibration turning device generally uses the lathe tool axis direction and the amplitude transformer axis direction on the vertical structure.The cutting methods are relatively single，mostly using vibration method of main cutting force direction for processing.The shortcomings of the existing structure and cutting methods are pointed out，the structure of turning tool axial consistent with horns axial is proposed and a new composite vibration is taken.Based on the principle，it is simulated through AdvantEdge FEM to demonstrate the feasibility of the new structure and cutting method.The difference between brittle hard materials and plastic materials in the ultrasonic vibration turning is pointed out.

Keywords:ultrasonic vibration turning；structural improvement；principle analysis；finite element simulation