主轴外圆超光滑研磨工艺  

Supersmooth grinding technology of spindle outer circle

作　　者：李彬[1] 宋晓宇 吴媛媛 张晓朋 任东旭[1] 赵则祥[1] LI Bin;SONG Xiaoyu;WU Yuanyuan;ZHANG Xiaopeng;REN Dongxu;ZHAO Zexiang(School of Mechatronics Engineering,Zhongyuan University of Technology,Zhengzhou 450007,China;Intelligent Manufacturing Institute,Zhengzhou University of Economics and Business,Zhengzhou 450099,China)

机构地区：[1]中原工学院机电学院,郑州450007 [2]郑州经贸学院智慧制造学院,郑州450099

出　　处：《金刚石与磨料磨具工程》2023年第4期447-454,共8页Diamond & Abrasives Engineering

基　　金：国家自然科学基金(5197052166,51905558)。

摘　　要：为改善精密磨削后主轴外圆柱面的表面粗糙度和圆度,提出新型立式精密研磨方法并研制立式研磨装置。文章选取立式研磨方式下气缸压力、油石粒度、主轴转速3个关键工艺参数对轴类零件加工精度的影响进行分析。基于L9(34)正交试验设计,采用S/N响应法和ANOVA方差法对试验数据进行分析,得到优化的工艺参数组合,并用其对5根尺寸为?50 mm×160 mm的40Cr材质主轴外圆柱面进行研磨。结果表明:使用立式研磨法对工件外圆柱面加工3 h后,工件的平均材料去除率为7μm/h,平均圆度误差由4.12μm降为1.47μm,表面粗糙度由326 nm降为41 nm。In order to improve the surface roughness and roundness of the outer cylindrical surface of the spindle after precision grinding,a novel vertical precision grinding method was proposed,and a vertical grinding device was developed.This paper analyzes the influence of cylinder pressure,grit size,and spindle speed on the machining accuracy of shaft parts in the vertical lashing mode.Firstly,the standard L9(34)orthogonal table was designed based on the orthogonal experiment,and the experimental workpiece was processed strictly according to the experimental numbers in the orthogonal table.Then,the data of the processing results were analyzed by the S/N response method and ANOVA variance method,and the optimal combination of process parameters was obtained.Finally,based on the combination of optimized process parameters,the grinding experiment was conducted on the outer cylinder surface of the spindle made of 40Cr material,with the size of 50 mm×160 mm.The results show that the average material removal rate is 7μm/h,the average roundness error decreases from 4.12μm to 1.47μm,and the surface roughness reduces from 326 nm to 41 nm.

关 键 词：主轴零件 立式研磨 外圆研磨 表面粗糙度 

分 类 号：TG58[金属学及工艺—金属切削加工及机床] TH161.1[机械工程—机械制造及自动化]