基于MATLAB的单、双丝杠进给系统动力学建模分析与比较  

Analysis and comparison of dynamics modeling between feeding systems contain single and double ball screw based on MATLAB

作　　者：张韬[1] 袁胜万[1] 崔岗卫[1] 

机构地区：[1]沈机集团昆明机床股份有限公司,云南昆明650203

出　　处：《制造技术与机床》2015年第1期105-108,共4页Manufacturing Technology & Machine Tool

基　　金：国家科技重大专项资助项目(2012ZX04010-021-02);国家科技重大专项资助项目(2012ZX04012031)

摘　　要：以精密卧式加工中心进给系统为研究对象,分别建立其单丝杠驱动和双丝杠驱动进给系统数学模型,对两模型的传动系统动态响应进行分析。计算系统在扭转振动、时变啮合刚度、误差激励等因素作用下的动态响应,分析比较系统动态特性。对比结果显示,相对于单丝杠进给系统,在丝杠轴径比其小一个级别的情况下,双丝杠进给系统的振动速度幅值能减小35%。Aim at the feed driving system of precision horizontal machining center, the mathematical models of single ball screw driving system and pair ball screw driving system are set up, in which, dynamic response characteristics of feed driving system can be analyzed. After calculating dynamic responses action on torsional vibration, time - varying meshing stiffness and error excitation, dynamic characteristics of the system are analyzed and compared. The comparative results of pair ball screw feed driving system with the single ball screw feed driving system show that： the vibration velocity amplitude is reduced by 35%.

关 键 词：滚珠丝杠 双驱动 动态响应 

分 类 号：TH132[机械工程—机械制造及自动化]