磨削螺杆转子砂轮截形计算与仿真验证  

Calculation of Grinding Wheel Profile and 3D Simulation for Grinding Screw Rotor Flute

作　　者：陆如升[1] 沈志煌[1] 彭丽文[1] 姚斌[1] 姚博世 

机构地区：[1]厦门大学物理与机电工程学院,福建厦门361005 [2]陕西省汉江机床有限公司,陕西汉中723003

出　　处：《厦门大学学报（自然科学版）》2011年第5期852-855,共4页Journal of Xiamen University：Natural Science

基　　金：国家科技重大专项项目(2010ZX04001-162)

摘　　要：介绍了螺杆转子成型磨削原理,并给出成形砂轮截形计算的基本流程.再利用啮合原理推导建立了螺杆转子螺旋面与砂轮回转面的接触线方程式,从而计算得到成型砂轮截形曲线.详细论述了用分段累加弦长参数的数值计算方法,对砂轮截形进行计算,避开对转子截形曲线各离散点直接求导的困难,提高了计算效率.最后以某非对称型线螺杆阴转子为例,对砂轮截形进行计算绘制,并通过仿真加工检验计算的正确性,同时进行干涉判断.该方法也为螺杆转子后续的有限元分析和虚拟测试实验提供了精确的实体模型.In order to describe the forming grinding principle of screw rotor,the design process of the forming grinding wheel is given. The contact line equation of screw rotor＇s helical groove and forming grinding wheel＇s rotation surface is established by engagement principle. To optimize the traditional method of calculating forming grinding wheel by known rotor end section profile, a numerical analysis method （accumulated chord length parameter method） has been presented in detail. This method can improve the efficiency and reliability of the calculation of forming grinding wheel axial profile. Taking the asymmetry linear screw rotor （female） as an example, this paper calculates the grinding wheel axial profile and draws it using special designed software. The simulation examples are done by CAD （computer aided design） based on the secondary development technology of UG. This study provides a precise 3D model which can be used in areas such as finite element analysis and virtual testing experiments.

关 键 词：螺杆转子 螺旋面 成形砂轮 累加弦长 CAD/CAM 

分 类 号：TH164[机械工程—机械制造及自动化]