摘要
由于拉削振动力对拉床液压系统的平稳性和拉削加工的质量影响较大,根据正交切削力模型及微元法,文章建立了拉刀单齿的拉削力模型,并根据拉刀实际拉削的最大齿数变化规律,建立了拉削振动力模型和基于拉削振动力的拉床液压系统模型,利用AMESim软件仿真分析了拉削振动力作用下拉床液压系统的平稳性,对不同齿距、不同拉削速度以及不同脉冲比下,拉削振动力对拉床液压系统稳定性的影响进行了分析。设计子拉床液压系统拉削振动特性的测试试验方案,通过试验验证了仿真分析结果的准确性。
The broaching vibration affects the stability of the broaching machine hydraulic system and the quality of broaching process greatly. In this paper, the model of broaching force in single broach tooth was established based on the orthogonal cutting force model and infinitesimal method. Accord- ing to the number changes of working broach tooth, the broaching vibration model and the broaching machine hydraulic system model based on broaching vibration were proposed. The stability of the hy- draulic system under broaching vibration was analyzed by using AMESim software. Besides, the sta- bility with different tooth space, different cutting speed and different pulse ratio was studied. Finally, an experiment was designed to test the broaching vibration characteristics, and the results verified the simulation conclusions.
出处
《合肥工业大学学报（自然科学版）》
CAS
北大核心
2017年第4期447-452,共6页
Journal of Hefei University of Technology：Natural Science
基金
湖南省"十二五"省级重点学科建设(机械工程)资助项目(1342-71100000003)
关键词
高速拉床
拉削振动
正交切削力模型
液压系统
稳定性分析
high speed broaching machine
broaching vibration
orthogonal cutting force model
hy- draulic system
stability analysis
