数控机床滚珠丝杠副优化设计  

Optimum Design on Ball Screw Unit of CNC Machine Tool

作　　者：孙奎洲[1] 周金宇[1] 

机构地区：[1]江苏技术师范学院,江苏常州213001

出　　处：《机床与液压》2010年第20期7-9,41,共4页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(50805070)

摘　　要：滚珠丝杠是数控机床重要的传动部件,它的精度与可靠性直接影响加工零件的质量。以滚珠丝杠副的疲劳寿命和静载荷为约束条件,以滚珠丝杠副的体积最小为目标函数建立数学模型,利用Matlab程序实现滚珠丝杠的优化设计。实例证明,该方法在保证滚珠丝杠疲劳寿命和刚度的前提下可有效减小成本,符合产品开发要求。此方法简单、实用,并可应用于同类产品的优化设计。Ball screw unit is an important transmission components of CNC machine tool.Its accuracy and reliability directly af-fects the quality of mechanical parts.Taking the fatigue life and static load of ball screw unit as the constraints and the smallest volume as the goal function,its mathematical model was established and the ball screw unit optimization design was realized using Matlab.The application result proves that using this method can effectively reduce the cost under the premise of guaranteeing fatigue life and stiffness of the ball screw unit.It meets the product development requirement.This method is simple,practical,and can be applied to optimize the design of similar products.

关 键 词：数控机床 滚珠丝杠副 优化设计 MATLAB 

分 类 号：TH128[机械工程—机械设计及理论]