数控立铣加工稳定性Lobe图计算方法研究  

Calculation Method Research of Cutting stability Lobe Graph for Vertical CNC Milling Machine

作　　者：孙新国[1] 桂林[2] 

机构地区：[1]南阳理工学院机械与汽车工程学院,河南南阳473004 [2]河南工业职业技术学院汽车工程系,河南南阳473000

出　　处：《组合机床与自动化加工技术》2015年第9期140-142,共3页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：河南省科技厅重点攻关项目(112102210097)

摘　　要：以立式数控铣床为研究对象,以刀尖频响函数预测模型和立铣切削过程动力学模型为基础,建立了立铣切削过程的动力学模型,得到了立铣切削过程稳定性Lobe图解析算法,计算出了立铣切削过程稳定性Lobe图。通过实验和预测稳定性Lobe图,得到他们的图形总体趋势一致,说明根据预测稳定性Lobe图选择切削参数,可以保证切削过程的稳定性。为研究主轴-刀柄结合面参数、刀柄-刀具结合面参数、刀具直径、刀具悬伸长度、切入角、切出角、切向切削系数以及径向切削系数等因素对稳定性Lobe图的影响提供了一种计算方法。Taking the vertical numerical control milling machine as the research object, it is based on the frequency response function for prediction model and dynamic model of milling process, and it is established for the dynamic model of milling process. It is obtained for the milling process stability of Lobe chart par-sing algorithm. It is calculated for the milling process stability of Lobe diagram. Through the experiment and forecast for the stability of Lobe diagram, consistentoverall trend of their graphics is consistent. According to the selection of cutting parameter sprediction of stability of Lobe diagram, it is guaranteed for the stability of cutting process. It provides a calculation method for main research-handle with surface parameters, the tool joint parameters, tool diameter, the tool overhang length, angle, cutting angle, cutting coefficients and the radial cutting coefficient and other factors on the stability of Lobe graph.

关 键 词：数控立铣 Lobe图 计算 加工稳定性 

分 类 号：TH166[机械工程—机械制造及自动化] TG506[金属学及工艺—金属切削加工及机床]