基于PMAC2的刀具刃磨中心定位精度控制研究  

Study on Positioning Accuracy Control for Tool Grinding Center Based on PMAC2

作　　者：王占领[1] 

机构地区：[1]陕西理工学院机械工程学院,陕西汉中723003

出　　处：《组合机床与自动化加工技术》2014年第5期121-122,126,共3页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：陕西省工业攻关项目基金(2009K07-09)

摘　　要：数控机床定位精度和重复定位精度直接影响数控机床的加工精度。通过对刀具刃磨中心控制系统PID参数、速度和加速度前馈参数的整定,分析了影响系统定位精度的原因,并利用系统螺距误差补偿的方法对刀具刃磨中心进给系统的定位精度进行了补偿。试验结果表明该误差补偿策略显著提高了系统的位置精度和运动精度,为提高机床的加工精度奠定了基础。The positioning accuracy and repetitive positioning accuracy of NC machine is directly affected machining accuracy. The reason for system positioning accuracy is analyzed through adjustment of PID parameters of tool grinding center control system, velocity and acceleration. Positioning accuracy of feed system is compensated by means of error compensation of screw pitch methods. The result shows that positioning accuracy and movement accuracy are significantly increased. Then this study lay a foundation for improvement of machining accuracy.

关 键 词：数控机床 精度分析 螺距误差补偿 

分 类 号：TH166[机械工程—机械制造及自动化] TG71[金属学及工艺—刀具与模具]