深孔镗杆在推镗和拉镗时的ANSYS受力分析  

Stress analysis for deep hole boring stem in pushing and pulling boring with ANSYS

作　　者：杨吉茂[1] 辛舟[1,2] 

机构地区：[1]兰州理工大学机电工程学院,兰州730050 [2]兰州理工大学数字制造技术与应用省部共建教育部重点实验室,兰州730035

出　　处：《机械设计与制造》2011年第7期128-129,共2页Machinery Design & Manufacture

摘　　要：深孔镗削是提高深孔加工精度的一种方法,它能校正己有孔上的缺陷,如圆度误差、直线度误差,从而获得良好的几何精度和表面粗糙度。深孔镗削的加工方式、运动形式、镗刀的轨迹方程和对镗削的受力分析是深孔镗削加工中各不稳定因素的渊源,在深孔镗削过程中,运用合适的镗削方式可以减小切削系统的振动。针对多刃均布式深孔镗刀,在推镗和拉镗方式下进行受力分析,并利用PRO/E建立镗杆几何模型并生成中性几何文件,通过ANSYS有限元法,计算出推镗和拉镗时镗杆产生的挠度以及最大应力应变曲线,将二者结果进行比较,证明在细长管时拉镗加工的优势。The deep hole boring is a method for improving the precision of the deep hole processing,which defects at hole can be calibrated,such as roundness error,straightness error,in order to obtain good geometry precision and surface roughness.It is known that the deep hole processing methods,motion style,the trajectory equation and the boring force analysis are the origin of unstable factors in deep hole processing.While a suitable boring method may reduce vibration of cutting system.it boring tool with equispaced multi-edge is analyzed for its carrying force under pushing boring and pulling boring to establish geometrical model and generate neutral geometric files with PRO/E,and then calculate the max.deflection of boring stem by ANSYS finite element method in pushing and pulling boring as well as the biggest stress-strain curve of deflection.By comparing the analyzing results of the above two,the advantages of processing pull boring are proved.

关 键 词：推镗 拉镗 深孔镗削 有限元分析 

分 类 号：TH16[机械工程—机械制造及自动化] TG53[金属学及工艺—金属切削加工及机床]