| 引用本文: | 龚维纬,王伟,雷大江,关利超,崔海龙.研磨机床几何误差对金刚石刀面粗糙度的影响[J].哈尔滨工业大学学报,2020,52(7):29.DOI:10.11918/201907147 |
| GONG Weiwei,WANG Wei,LEI Dajiang,GUAN Lichao,CUI Hailong.Effects of lapping machine geometric errors on surface roughness of diamond cutting tools[J].Journal of Harbin Institute of Technology,2020,52(7):29.DOI:10.11918/201907147 |
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| 摘要: |
| 为探究研磨机床几何误差对金刚石刀具后刀面粗糙度的影响规律,建立研磨机床精度与刀具后刀面表面轮廓的数学模型. 借助多体系统理论对研磨机床的误差传递进行建模；基于样条滤波算法建立机床误差与刀具后刀面粗糙度之间的定量关系；分析主轴、摆轴的端面和径向跳动误差以及往复轴的直线度误差对刀具后刀面粗糙度的影响规律. 结果表明:主轴、摆轴和往复轴几何运动误差对刀具后刀面粗糙度的影响占比分别为98.18%、1.59%和0.23%；主轴的端面和径向跳动误差是影响后刀面粗糙度的主要因素,研究结果为研磨机床的设计制造与金刚石刀具研磨工艺的优化提供理论指导. |
| 关键词: 研磨机床 几何误差 金刚石刀具 超精密加工 粗糙度 |
| DOI：10.11918/201907147 |
| 分类号:TG729 |
| 文献标识码:A |
| 基金项目:国家自然科学基金NSAF基金(U1830110)； 中央高校基本业务费(ZYGX2019J032) |
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| Effects of lapping machine geometric errors on surface roughness of diamond cutting tools |
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GONG Weiwei1,2,WANG Wei1,LEI Dajiang2,GUAN Lichao2,CUI Hailong2
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(1. School of Mechanical and Electrical Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China; 2. Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang 621000,Sichuan, China)
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| Abstract: |
| To investigate the effect of lapping machine geometric errors on flank face roughness of diamond cutting tools, a mathematic model of lapping machine geometric errors and surface profile of tool flank face is built. The error propagation of lapping machine is modeled based on the theory of multi-body system. And a quantified relationship between machine errors and roughness is established using the algorithm of spline filter. The influence principle of end face and radial errors of spindle and sway, and the straightness error of reciprocates on roughness are analyzed. The result shows that the influence proportion of spindle, sway and reciprocating geometric moving errors on roughness are 98.18%, 1.59% and 0.23% respectively, hence roughness of flank face is mainly affected by spindle end face and radial errors which offers a guidance to the design and manufacturing of lapping machine and optimization of lapping technics for diamond cutting tools. |
| Key words: lapping machine geometric error diamond cutting tool ultra-precision machining roughness |
