错齿BTA深孔钻导向条与孔壁接触状态仿真研究

李旭波; 郑建明; 彭朋; 李鹏

doi:10.13433/j.cnki.1003-8728.2017.0710

错齿BTA深孔钻导向条与孔壁接触状态仿真研究

doi: 10.13433/j.cnki.1003-8728.2017.0710

1.
西安理工大学机械与精密仪器工程学院, 西安 710048

基金项目:

国家科技重大专项（2013ZX04009011）资助

详细信息

作者简介:
李旭波(1988-),博士,研究方向为加工过程建模仿真与控制,qqlixubo@126.com

通讯作者:
郑建明(联系人),教授,博士生导师,zjm@xaut.edu.cn

计量
- 文章访问数: 296
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- PDF下载量: 7
- 被引次数: 0
出版历程
- 收稿日期: 2016-03-03
- 刊出日期: 2017-07-05

Simulation Study on Contacting State between Drilled Hole Wall and Guide Pads for Staggered Teeth BTA Drill

1.
School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China

摘要

摘要: 分析BTA深孔钻削工作原理与受力特点，采用ANSYS软件建立了错齿BTA钻头导向条与孔壁之间的有限元接触分析模型，通过静力学仿真分析，获得了钻削过程错齿BTA深孔钻头导向条与孔壁实际接触状态，研究了接触应力和接触区域随导向条位置角的变化规律。结果表明仿真所获得的接触区域与实际钻削过程导向条的磨损图基本一致，导向条与孔壁的接触主要集中在导向条前端很小的区域，导向条位置角对接触应力与接触区域具有重要影响，通过对导向条位置角的优化可以很好地改善接触状态，为错齿BTA深孔钻头的优化设计提供了依据。
- 错齿BTA钻头 /
- 导向条 /
- 接触应力 /
- 仿真
Abstract: The working principle and mechanical characteristics in the BTA deep hole drilling is analyzed, and a model for contact analysis between the drilled hole wall and the guide pads of BTA drill is established via commercial software ANSYS. By the statics simulation analysis, the actual contacting state between the drilled hole wall and the guide pads in the drilling process of staggered teeth BTA drill is presented. The change laws of contacting stress and contacting area with position angle of guide pads are analyzed. The results show that the contacting area via FE simulation is nearly similar to the wear area of guide pads in the actual drilling. The contacting area between the drilled hole wall and the guide pads is very small, and mainly concentrates on the front of guide pads. The position angles of guide pads have important effect on contacting stress and contacting area. The optimization of the position angles of guide pads can well improve the contacting state, which provides the laws for optimizing design of staggered teeth BTA drill.
- staggered teeth BTA drill /
- guide pads /
- stresses /
- simulation

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参考文献(16)

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