基于虚拟样机技术的新型砂轮修整器动力学仿真分析  

Dynamic Simulation Analysis of a New Grinding Wheel Dresser Based on Virtual Prototyping Technology

作　　者：孔振[1,2] 冯虎田[1] 陶卫军[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094 [2]上海航天精密机械研究所,上海201600

出　　处：《组合机床与自动化加工技术》2011年第2期36-39,共4页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：国家科技重大专项(2009ZX04001-171-02;2009ZX04011-034-02);江苏省创新基金学者攀登计划项目(BK2008050)

摘　　要：砂轮修整是实现高精高效磨削、精密复杂型面磨削、自动化智能化磨削的关键。首先,不同于传统的串联结构砂轮修整器结构,提出了一种基于并联机构的三自由度砂轮修整器,描述了其运动功能与工作原理;其次,针对提出的砂轮修整器结构,对其运动学特性进行了分析,求出其机构运动学正解和反解的表达式;最后,通过刚柔耦合动力学仿真,并与刚体动力学仿真结果进行对比,结果表明,其能满足砂轮修整运动功能要求和运动精度要求。Dressing grinding wheel is the key factor to achieve high-precision and high-efficiency grinding,precisive and complex surface grinding,automated and intelligentized grinding.At first,different from the traditional grinding wheel dresser of series structure,a three DOF grinding wheel dresser based on parallel mechanism was designed,its motion function and working principle were described.Secondly the kinematics characteristics of grinding wheel dresser were analyzed,positive and negative solutions of its kinematics were analyzed and given.Finally,through comparison the results of the rigid-flexible coupling dynamic simulation and the rigid body dynamic simulation it demonstrates that its motion precision meets the requirement of dressing the grinding wheel.

关 键 词：砂轮修整器 并联机构 刚柔耦合 运动精度 

分 类 号：TH122[机械工程—机械设计及理论]