丝杠螺纹加工中主轴角位移的高精度快速测量  

Research on High-Precision Measurement of the Spindle Angular Displacement in CNC Screw Machining

作　　者：钟旭[1] 李飞燕[1] 

机构地区：[1]广东技术师范学院电子与信息学院,广州510665

出　　处：《组合机床与自动化加工技术》2012年第3期82-84,88,共4页Modular Machine Tool & Automatic Manufacturing Technique

摘　　要：在分析了影响主轴角位移测量精度因素的基础上,根据光电脉冲编码器输出信号特点,提出了主轴角位移频率比对测量法。为消除在测量过程中由于主轴转速的不同造成测量精度差异,采用了周期自适应调节技术,而为降低在测量过程中由标频脉冲计数带来的计数误差,采用了相位延迟技术和相位同步技术。通过在CA6140普通数控车床上的实际测试,验证了该法的有效性和实用性。After analyzing the affecting factors of precision and encoder characteristics,a new method for measuring the spindle angular displacement in the economical numerically controlled lathe is presented The technique of self-adapting period is put forward to reduce the measurement error caused by change of spindle speed;By phase delay and phase synchronization technique the counting error is reduced.Application results in CA6140 NC lathe show its effectiveness and practicability.

关 键 词：丝杠螺纹加工 主轴角位移 频率比对 周期自适应 相位延迟 相位同步 

分 类 号：TH165[机械工程—机械制造及自动化] TG62[金属学及工艺—金属切削加工及机床]