时栅传感器在铣床数控改造中的应用

为了实现对普通铣床的数控化改造,采用时栅传感器作为位置反馈传感器,通过以ARM为微处理器的嵌入式系统实现对铣床的运动轴进行闭环控制.并为铣床的工作台增加了一个内部安装有圆时栅的数控转台.论文介绍了改造过程以及利用数控转台加工直线、圆弧和椭圆的方法,并对其加工误差进行了分析.实践证明,改造后的铣床数控系统不仅提高了加工精度和效率,而且还提高了加工的灵活性.新型的时栅传感器为企业技术改造和数控加工系统的生产提供了一种高精度、低成本的解决途径.

The Application of Time Grating Sensor for Modifying Milling Machines

In order to improve the numerical performance of milling machine,a time grating sensor and an ARM microprocessor constitute a closed-loop control system,where the time grating is adopted as a position feedback detector,and an ARM microprocessor is adopted to control movement axis of milling machine.A circular time grating sensor embedded in rotary table is responsible for angular displacement measurement.The principles of machining along straight line,circle and ellipse are presented in this paper.In additi...