平面二次包络环面蜗杆数控磨床设计及运动学仿真  

Design and Kinematics Simulation of Plane Quadratic Enveloping CNC Grinding Machine

作　　者：冯星鑫 戴惠良[1] 韩凯凯 王永柱 FENG Xingxin;DAI Huiliang;HAN Kaikai;WANG Yongzhu(College of Mechanical Engineering,Donghua University,Shanghai 201620,China;Shanghai Aerospace Control Technology Institute,Shanghai 201109,China)

机构地区：[1]东华大学机械工程学院,上海201620 [2]上海航天控制技术研究所,上海201109

出　　处：《东华大学学报（自然科学版）》2020年第1期105-111,共7页Journal of Donghua University(Natural Science)

摘　　要：在研究平面二次包络环面蜗杆数控磨床加工原理的基础上,提出采用磨头部件内藏式和砂轮支撑座倾斜式的设计方式,将砂轮产形面与回转工作台中心轴的距离控制在300 mm以内,减少了蜗杆表面螺旋线误差和磨削的行程。采用第四轴分度盘驱动蜗杆旋转,实现磨削过程中的分度功能,提高了磨床的加工效率和加工精度。建立环面蜗杆加工原理的数学模型,推导出环面蜗杆齿面方程和砂轮产形面方程,并运用Matlab软件模拟仿真齿面方程和瞬时接触线方程,验证了新磨床结构的可行性。Based on the study of machining theory of the plane-quadratic-envelope annular worm CNC(computerized numerical control)grinding machine,this paper proposed an embedded design of grinding head parts and an inclined design of grinding wheel support base.The distance from grinding wheel to central axis of the rotary table was reduced to 300 mm.Thus the worm surface spiral error and grinding stroke were reduced.The fourth axis index plate was used to drive the worm rotation,realizing the indexing function in the grinding process and improving the efficiency and accuracy of the grinding machine.In addition,a mathematical model for the machining principle of enveloping worm was established.The enveloping worm tooth surface equation and the profile of grinding wheel equation were derived and simulated by Matlab.Thus the feasibility of the new grinder structure is verified.

关 键 词：蜗杆磨床 结构设计 仿真分析 

分 类 号：TG502.31[金属学及工艺—金属切削加工及机床]