摘要
本文从高速铣削加工的特点出发,设计三款可调节精加工面铣刀,并通过有限元分析软件(ANSYS)分析每种调整结构在不同几何参数下的力学性能,得出极限转速R_(max)。再分析理论数据,从中挑选模拟实验极限转速较高的两款结构A(楔块式调整结构)、B(螺钉式调整结构)试制成实物进行切削实验。试切实验中这两种可调结构兼顾实际切削效果与刀具结构优化效果,结构A和结构B均能满足使用要求,但结构A相对于结构B占用刀体空间小,通用性更好,且在水平方向调整适用性更好。在A结构3种不同几何参数的实验数据中,楔块角度为8°,螺钉水平调节高度为0.015 mm,刀夹压力角为10°的刀夹在试验和实际中切削性能良好,工件表面质量高。
This paper designs three types of adjustable finishing face milling cutters,and analyzes the mechanical properties of each type of adjustment structure under different geometric parameters through the finite element analysis software(ANSYS),and obtains the limit speed R_(max).After analyzing the theoretical data,two structures A(wedge type adjustment structure)and B(screw type adjustment structure)with higher limit speed in the simulation experiment are selected to be trial-manufactured for real cutting experiment.The experimental results show that these two adjustable structures give consideration to both the actual cutting effect and the optimization effect of tool structure in the trial cutting experiment.Structure A and structure B can meet the requirements of use,but structure A takes up less space than structure B,has better universality and better adaptability for horizontal adjustment.In the experimental data of three different geometric parameters of structure A,when the wedge Angle is 8°,the screw level adjustment height is 0.015 mm,and the clamp pressure Angle is 10°,the cutter clip has good cutting performance and high workpiece surface quality in test and practice.
作者
刘敏
张碧妮
杨滨
Liu Min;Zhang Bini;Yang Bin(Zhuzhou Diamond Cutting Tool Co.,LTD.,Zhuzhou Hunan 412000,China;Dalian Foreign Studies University,Dalian Liaoning 116000,China;Songbei Battalion,Harbin Fire Rescue Detachment,Harbin Heilongjiang 150000,China)
出处
《硬质合金》
CAS
2021年第5期357-365,共9页
Cemented Carbides
基金
国家科技重大专项《汽车发动机关键部件成套刀具应用示范》(No:2018ZX04040-001)。
关键词
高速铣削
有限元分析
可调结构
安全性
稳定性
high speed milling
finite element analysis
adjustable structure
safety
stability
作者简介
刘敏(1966-),男,本科,设计部部长、研发中心副主任,高级工程师,主要从事切削刀具设计与开发。E-mail:liumin@zucchini.com。
