数控系统中螺距补偿的原理与设计  

Lead-Screw Compensation's Principle and Design in Numeric Controller

作　　者：陈刚[1] 羌铃铃 

机构地区：[1]西门子数控(南京)有限公司,江苏南京211100 [2]江苏省测绘工程院,江苏南京210013

出　　处：《机械制造与自动化》2015年第1期25-28,共4页Machine Building & Automation

摘　　要：由于数控机床的丝杠在制造、安装上存在误差以及长期使用造成的磨损,导致螺距实际移动值与预期设定值之间存在差异。提出了螺距误差的单向补偿方法和双向补偿方法。介绍了螺距补偿的原理,包括单向补偿方法、双向补偿方法的原理;提供了一种实现单向补偿、双向补偿的设计方案;编写了简单的零件位置移动程序来测试双向补偿方法是否生效。实验结果证明,该方案能够解决数控系统中的螺距误差。Because the manufacturing and installation errors and wear ofl Long-ferm use exist in the lead of NC machine tool,its actual moving position is made different from its expected moving posifion. The article puts forward the uni-direction and bi-direction compensation in numeric controller,introduces the principle of lead-screw compensation,including the uni-direction and bi-direction compensation,then gives out one method which is used to design uni-direction and bi-direction compensation and edits one program which is used to test whether the bi-direction compensation is valid or not. The result of experiment shows the lead-screw error existing in numeric controller is solved.

关 键 词：数控系统 螺距补偿 单向补偿 双向补偿 补偿表 

分 类 号：TG659[金属学及工艺—金属切削加工及机床]