Page 24 - 《应用声学》2020年第3期

第 39 卷 第 3 期 Vol. 39, No. 3
2020 年 5 月 Journal of Applied Acoustics May, 2020

⋄ 研究报告 ⋄

超声辅助磨削杯形砂轮变幅器设计与试验 ∗

牛金荣 1 秦慧斌 1† 冯 毅 1 周瑞峰 1 吕 明 2

(1 中北大学先进制造技术山西省重点实验室 太原 030051)
(2 太原理工大学精密加工山西省重点实验室 太原 030024)

摘要：超声辅助磨削在硬脆材料的加工中应用广泛。为研制以杯形砂轮为加工工具的超声辅助磨削主轴附件
式工具系统，建立了杯形砂轮变幅器的理论模型，推导了其频率方程，并通过 Matlab 开发了杯形砂轮变幅器
设计软件。利用该软件结合有限元分析对杯形砂轮变幅器进行了设计。将研制的杯形砂轮变幅器与 BT40 刀
柄一体化外套筒、导电滑环装配组成了杯形砂轮超声辅助磨削主轴附件式工具系统。对该超声振动系统进行
了阻抗分析试验及超声谐振试验，结果表明，该超声振动系统阻抗性能较好，能够使杯形砂轮产生稳定的超声
振动，验证了所提出的设计方法的正确性，为主轴附件式超声磨削装置的设计提供了理论参考。
关键词：超声辅助磨削；杯形砂轮变幅器；Mindlin 理论；有限元分析
中图法分类号: TH113.1 文献标识码: A 文章编号: 1000-310X(2020)03-0344-10
DOI: 10.11684/j.issn.1000-310X.2020.03.004

Design and experimental investigation of cup wheel transformer used in
ultrasonic assisted grinding

NIU Jinrong 1 QIN Huibin 1 FENG Yi 1 ZHOU Ruifeng 1 LYU Ming 2

(1 Shanxi Key Laboratory of Advanced Manufacturing Technology, North University of China, Taiyuan 030051, China)
(2 Shanxi Key Laboratory of Precision Machining, Taiyuan University of Technology, Taiyuan 030024, China)

Abstract: Ultrasonic assisted grinding (UAG) is widely used in the machining of hard and brittle materials. In
order to design a spindle accessory of the UAG device with cup wheel, the frequency equation of the cup wheel
transformer is established and a design software is developed by Matlab. A cup wheel transformer is designed
by this software and finite element analysis. The developed cup wheel transformer is assembled with outer
shell with BT40 tool holder and sliping ring to form a spindle accessory of the UAG device. The impedance
test and ultrasonic resonance test of the ultrasonic vibration system are carried out. The results show that the
ultrasonic vibration system has good impedance performance and its vibration is stable. The design theory is
verified, and it provides a theoretical reference for the design of spindle accessory of the UAG device.
Keywords: Ultrasonic assisted grinding; Cup wheel transformer; Mindlin theory; Finite elements analysis

2019-07-22 收稿; 2019-09-25 定稿
中北大学研究生科技项目 (20181514), 山西省研究生教育创新项目 (2018SY078), 中北大学成果转化资助项目 (CG201803)
∗
作者简介: 牛金荣 (1996– ), 男, 山西长治人, 硕士研究生, 研究方向: 功率超声加工理论与技术。
† 通信作者 E-mail: qhbsss@163.com