罗茨真空泵螺旋转子的CAD/CAM技术研究  

Study on CAD/CAM technique with helical rotor of Roots vacuum pump

作　　者：巫修海[1] 张宝夫[1] 程子瑜[1] 

机构地区：[1]台州职业技术学院真空技术研发中心,台州318000

出　　处：《现代制造工程》2011年第5期81-84,共4页Modern Manufacturing Engineering

基　　金：浙江省科技计划项目(2009R30021);台州市科技计划项目(092KY02);台州职业技术学院校级重点课题项目(2010ZD01)

摘　　要：提出一种在四轴数控加工中心上用展成法加工罗茨真空泵螺旋转子的方法。着重阐述某新型圆弧摆线型罗茨真空泵三叶螺旋转子型线曲线数学参数化模型的建立、三维实体参数化造型、数控铣削自动编程与加工的技术方法。考虑转子型面的型线特点,借用CAM软件,利用流线型加工方式,用平刀和球头刀进行加工,通过控制表面残留高度降低表面粗糙度,从而达到表面加工精度的要求。可以高效加工螺旋转子,在实际加工中,取得了较好的经济和社会效益。Puts forward a generating method milling the helical rotor of Roots vacuum pump with using a four-axis machining center.A novel three-lobe arc-cycloid helical rotor is modeled,and meanwhile the parametric curve mathematical model of helical rotor profile,3D solid modeling with parameter,automatic programming and processing technology method for NC milling,are especially elaborated.Considering the rule profile of the rotor,using CAM software and the streamline milling method with flat and ball-end cutters,and according to cutting remain heights to control surface roughness,requirements of the surface machining precision can be in control.Actually,helical rotors can be efficiently milled,and good economic and social benefits can be achieved.

关 键 词：罗茨真空泵 螺旋转子 三维实体造型 数控铣削 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]