中国机械工程 ›› 2021, Vol. 32 ›› Issue (21): 2562-2570.DOI: 10.3969/j.issn.1004-132X.2021.21.005

• 机械基础工程 • 上一篇    下一篇

面向切屑形成过程的瞬时滚削力模型研究

丁国龙1;叶梦传;1向华2;杨春兰3   

  1. 1.湖北工业大学机械工程学院,武汉,430068
    2.华中科技大学国家数控系统工程技术研究中心,武汉,430074
    3.秦川集团(西安)技术研究院有限公司,西安,710016
  • 出版日期:2021-11-10 发布日期:2021-11-25
  • 通讯作者: 叶梦传(通信作者),男,1997年生,硕士研究生。研究方向为齿轮传动、滚齿加工技术。E-mail:1710502185@qq.com。
  • 作者简介:丁国龙,男,1968年生,教授。研究方向为齿轮传动、数控加工技术及应用。获湖北省科技发明二等奖1项、湖北省科技进步二等奖2项,获发明专利授权5项,发表论文10余篇。E-mail:19901012@hbut.edu.cn。
  • 基金资助:
    湖北省科技重大专项(2020AGA018-04)

Research on Instantaneous Hobbing Force Model for Chip Forming Processes

DING Guolong1;YE Mengchuan1;XIANG Hua2;YANG Chunlan3   

  1. 1.School of Mechanical Engineering,Hubei University of Technology,Wuhan,430068
    2.National NC System Engineering Research Center,Huazhong University of Science and Technology,Wuhan,430074
    3.Qinchuan Group(Xi'an)Technology Research Institute Co.,Ltd.,Xi'an,710016
  • Online:2021-11-10 Published:2021-11-25

摘要: 建立滚齿加工的时变滚削力模型是优化滚齿加工工艺参数、减少滚削力波动、提高加工精度的前提,面向滚齿切屑形成过程建立时变滚削力模型是提高建模精度的最直接的物理方法。针对干切滚齿的切屑形成过程,建立滚刀前刀面运动模型,利用MATLAB生成刀齿运动轨迹的动态链接库。基于SolidWorks进行三维布尔运算,提取未变形切屑几何特征,开发切屑几何模型动态链接库。通过C#调用MATLAB和SolidWorks动态链接库,实现三维运动仿真,进而构建多齿瞬时滚削力模型。通过YK3216CNC滚齿机进行样件加工,结合HNC-SSTT软件进行全行程电流检测,间接测量瞬时滚削力。仿真加工的瞬时滚削力与实测滚削力变化趋势基本一致,表明该模型合理、有效。

关键词: 切屑形成过程, 加工运动模型, C#混合编程, 瞬时滚削力

Abstract:  The establishment of time-varying hobbing force model in hobbing processes was the premise of optimizing hobbing process parameters, reducing hobbing force fluctuation and improving machining accuracy, where the model for hobbing chip forming processes was the most direct physical method to improve modeling accuracy. For the chip forming processes of dry gear hobbing, a model of hob rake face motion was established, and the dynamic link library of hob tooth motion track was generated by MATLAB. After that, three-dimensional Boolean operation  was performed to extract geometric features of undistorted chips and  to develop dynamic link library of chip geometric model based on SolidWorks. In addition, C# was used to call the dynamic link library of MATLAB and SolidWorks to realize three-dimensional motion simulation for building multi-tooth instantaneous hobbing force model. Indirected measurement of instantaneous hobbing forces was performed through prototype hobbing  on YK3216CNC gear hobbing machine and full stroke current detection was carried out combined with HNC-SSTT software. The instantaneous hobbing forces of simulation machining are basically in accordance with the change trend of measured hobbing forces, which indicates that the instantaneous hobbing force model is reasonable and effective. 

Key words: chip forming process, machining motion model, C# mixed programming, instantaneous hobbing force

中图分类号: