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主轴外圆超光滑研磨工艺

李彬 宋晓宇 吴媛媛 张晓朋 任东旭 赵则祥

李彬, 宋晓宇, 吴媛媛, 张晓朋, 任东旭, 赵则祥. 主轴外圆超光滑研磨工艺[J]. 金刚石与磨料磨具工程, 2023, 43(4): 447-454. doi: 10.13394/j.cnki.jgszz.2022.0224
引用本文: 李彬, 宋晓宇, 吴媛媛, 张晓朋, 任东旭, 赵则祥. 主轴外圆超光滑研磨工艺[J]. 金刚石与磨料磨具工程, 2023, 43(4): 447-454. doi: 10.13394/j.cnki.jgszz.2022.0224
LI Bin, SONG Xiaoyu, WU Yuanyuan, ZHANG Xiaopeng, REN Dongxu, ZHAO Zexiang. Supersmooth grinding technology of spindle outer circle[J]. Diamond & Abrasives Engineering, 2023, 43(4): 447-454. doi: 10.13394/j.cnki.jgszz.2022.0224
Citation: LI Bin, SONG Xiaoyu, WU Yuanyuan, ZHANG Xiaopeng, REN Dongxu, ZHAO Zexiang. Supersmooth grinding technology of spindle outer circle[J]. Diamond & Abrasives Engineering, 2023, 43(4): 447-454. doi: 10.13394/j.cnki.jgszz.2022.0224

主轴外圆超光滑研磨工艺

doi: 10.13394/j.cnki.jgszz.2022.0224
基金项目: 国家自然科学基金(5197052166,51905558)。
详细信息
    作者简介:

    李彬,男,1982年生,博士、副教授、研究生导师。主要研究方向:超精密加工技术与装备,精密测试技术。E-mail:libin_zzti@zut.edu.cn

  • 中图分类号: TG58; TH161+.1

Supersmooth grinding technology of spindle outer circle

  • 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ϕ50 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7 μm/h,平均圆度误差由4.12 μm降为1.47 μm,表面粗糙度由326 nm降为41 nm。

     

  • 图  1  立式研磨原理

    Figure  1.  Principle of vertical lapping

    图  2  立式研磨设备

    Figure  2.  Vertical grinding equipment

    图  3  某组工件的初始表面质量测量结果

    Figure  3.  Initial surface quality measurement results of a component

    图  4  工件表面粗糙度和圆度测量

    Figure  4.  Measurement of surface roughness and roundness of workpieces

    图  5  材料去除率、表面粗糙度、圆度随着气缸压力的变化柱状图(S/N平均响应)

    Figure  5.  Bar chart of material removal rate, surface roughness and roundness with cylinder pressure (S/N mean response)

    图  6  材料去除率、表面粗糙度、圆度随着磨粒粒度变化的柱状图(S/N平均响应)

    Figure  6.  Bar chart of material removal rate, surface roughness and roundness with grain size (S/N mean response)

    图  7  材料去除率、表面粗糙度、圆度随着主轴转速变化的柱状图(S/N平均响应)

    Figure  7.  Bar chart of material removal rate, surface roughness and roundness with spindle speed (S/N mean response)

    图  8  权重比例图

    Figure  8.  Weight ratio diagram

    图  9  研磨后各个工件圆度误差

    Figure  9.  Roundness error of each workpiece after polishing

    图  10  研磨前后工件平均圆度对比

    Figure  10.  Comparison of average roundness of workpiece before and after polishing

    图  11  研磨前后工件的圆度误差

    Figure  11.  Roundness error of workpiece before and after polishing

    图  12  研磨后各个工件的表面粗糙度

    Figure  12.  Surface roughness of each workpiece after polishing

    图  13  研磨前后工件平均表面粗糙度对比

    Figure  13.  Comparison of average surface roughness of workpiece before and after polishing

    图  14  研磨前后工件的宏观表面质量对比

    Figure  14.  Comparison of macroscopic surface quality of workpiece before and after polishing

    表  1  正交试验表

    Table  1.   Orthogonal experiment table


    试验序号
    因素
    A
    气缸压力
    p / MPa
    B
    磨粒粒度
    l / μm
    C
    主轴转速
    V / (r·min−1)
    10.033.5300
    20.035.0500
    30.037.0800
    40.053.5800
    50.055.0500
    60.057.0300
    70.073.5500
    80.075.0300
    90.077.0800
    下载: 导出CSV

    表  2  优化的工艺参数组合

    Table  2.   Optimized process parameter combination

    工艺参数类型或取值
    工件材料40Cr合金钢
    工件尺寸ϕ50 mm × 160 mm
    磨粒粒度 l / μm3.5
    冷却液纯净水
    气体静压主轴压力 p1 / MPa0.40
    上顶尖压力 p2 / MPa0.20
    气缸压力 p3 / MPa0.05
    轴向进给速度 vf / (mm·min−1)1 000
    主轴转速 V / (r·min−1)500
    加工时间 t / h3
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-12-19
  • 修回日期:  2023-02-05
  • 录用日期:  2023-03-01
  • 刊出日期:  2023-08-30

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