数控车床主轴自动定位修复螺纹方法的探讨与应用  

Study and application of NC lathe automatic positioning screw thread repairing method

作　　者：范芳洪[1] 石金艳[1] 

机构地区：[1]湖南铁道职业技术学院车机学院,湖南株洲412001

出　　处：《制造技术与机床》2015年第4期173-176,共4页Manufacturing Technology & Machine Tool

基　　金：2014年湖南省教育厅科学研究项目基于FANUC 0iD数控系统电气故障诊断专家的研究(14C0753)

摘　　要：针对目前数控车床上修复螺纹困难、易乱扣、效率低的问题,通过对切削螺纹的原理和修复螺纹中存在的问题进行分析,得出主轴编码器一转零脉冲信号位置和螺纹起始位置重合是修复螺纹的关键,提出了主轴自动定位修复螺纹的方法,设计了主轴一转零脉冲信号制动电路,利用对刀点计算确定螺纹入刀点。该方法无需对机床进行大的改动,安全可靠,操作方便简单,螺纹修复效率高,是一种较好的数控车床修复螺纹的方法。Aiming at the NC lathe repair difficulty,easy to buckle arbitrarily thread and low efficiency,through the analysis of existing problems of principle and repair of thread cutting thread in a turn,draws the spindle encoder zero pulse position and the starting position of the thread of coincidence is the key problem in repair of thread,and puts forward the method of spindle automatic positioning repair of threads,designs a rotating spindle zero pulse signal brake circuit,calculates and determines the thread into the knife point using the knife point. The method does not need large changes in the machine,is safe and reliable,has convenient and simple operation,high efficiency of thread repair,is the good method of NC lathe thread restoring.

关 键 词：螺纹修复 螺纹入刀点 一转零脉冲 主轴定位 对刀 

分 类 号：TG519.1[金属学及工艺—金属切削加工及机床]