二重动力吸振的车床镗削系统减振装置的设计

侯学元; 韩淑华; 张超; 郭如飞; 宁青林

doi:10.13433/j.cnki.1003-8728.20190160

二重动力吸振的车床镗削系统减振装置的设计

doi: 10.13433/j.cnki.1003-8728.20190160

1.
内蒙古科技大学工程训练中心, 内蒙古包头 014010
2.
内蒙古一机集团, 内蒙古包头 014030

详细信息

作者简介:
侯学元(1976-), 副教授, 硕士, 研究方向为振动控制技术、减振技术研究, houjunhan2007@163.com

中图分类号: TG54;TH128
计量
- 文章访问数: 185
- HTML全文浏览量: 75
- PDF下载量: 16
- 被引次数: 0
出版历程
- 收稿日期: 2019-04-23
- 刊出日期: 2020-04-05

Design of Vibration Absorbing Device for Boring System of Dual Power Absorbing Lathe

1.
Training Center of Inner Mongolia, University of Science & Technology, Inner Mongolia Baotou 014010, China
2.
Inner Mongolia First Machinery Group Corporation, Inner Mongolia Baotou 014030, China

摘要

摘要: 针对内蒙古某特大型机加企业结构件中大长径比镗杆的刚性差，达不到图纸加工精度要求，设计了二重动力吸振镗削系统，建立了二重动力吸振的动力学模型，基于优化准则分析了吸振器质量比对最优频率比和最佳阻尼比以及对减振性能的影响。进行了普通数控车床改造，设计了二重动力吸振的镗削减振结构，通过最优减振参数的确定，设计加工出镗削减振装置。通过ADAMS仿真实验验证其减振效果，结果表明，安装有二重动力吸振器减振装置的减振效果明显，是未安装吸振器的4倍以上。切削实验表明镗削吸振装置能显著提高零件加工表面质量。
- 镗削系统 /
- 二重动力吸振 /
- 减振装置 /
- ADAMS仿真 /
- /
Abstract: In some very large machining enterprise of Inner Mongolia, for the boring bar rigidity of structure parts with large length to diameter ratio is poor, short of drawings processing precision requirements, a double dynamical vibration absorption boring system is designed, a dynamic model of the double dynamic vibration absorbing is established; based on the rule of optimization analysis of the vibration absorber, the effects of absorber mass ratio on the optimal frequency ratio, optimum damping ratio and the vibration isolation performance are studied. The boring and cutting vibration structure with double dynamic vibration absorber is designed. The boring and cutting vibration device is designed and processed by determining the optimal vibration reduction parameters. The ADAMS simulation results show that the damping effect of the damping device installed with the double dynamic vibration absorber is more than 4 times that of the one not installed. Cutting experiments show that the boring vibration absorber can improve the surface quality of machining parts.
- boring system /
- double dynamic vibration absorption /
- vibration damping device /
- ADAMS simulation /
- cutting experiment /
- vibration isolation performance

HTML全文

图 1 二重动力吸振器模型

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图 2 最优参数随μ的变化图

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图 3 最大振幅倍率随质量μ的变化

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图 4 车床深孔镗削加工系统

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图 5 动力吸振装置

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图 6 镗杆一阶模态频率响应图

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图 7 ADAMS下减振镗杆整体模型

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图 8 抑制前后系统频率响应图

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图 9 车床镗削系统精镗加工图

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图 10 未安装吸振装置的镗杆加工后的零件表面

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图 11 安装二重动力吸振装置的镗杆加工后的零件表面

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