精密阀芯径向孔钻床夹具设计  

Fixture Design for the Radial Hole of Precision Valve Core

作　　者：颜科红[1] YAN Kehong(Sino-German School of Mechanical and Electronic,Wuxi Vocational College of Science and Technology,Wuxi Jiangsu 214028,China)

机构地区：[1]无锡科技职业学院中德机电学院

出　　处：《机床与液压》2019年第20期92-94,103,共4页Machine Tool & Hydraulics

基　　金：无锡市智能制造名师工作室专项资金资助项目(锡教高职[2015]38号)

摘　　要：针对某精密阀芯外圆表面径向孔尺寸和位置精度高、加工质量不稳定的情况,设计一种采用V形槽反装定位、偏心轮装置快速夹紧的专用钻床夹具。详细分析了径向孔加工钻床夹具的定位和夹紧方案,计算出定位元件关键尺寸,阐述夹紧装置的原理和工作过程。经夹具精度分析与验算,发现所设计的夹具完全能满足精密阀芯径向钻孔的高精度要求。该夹具操作简便、适应性强、工件加工质量稳定,为机械行业销轴类零件高精度径向孔钻床夹具的设计提供了参考。Aiming at high dimension and position precision requirements for radial hole on precision valve core and unstable machining quality problem,a special drilling fixture was designed with reversed-groove loading and quick clamping by eccentric wheel.The positioning and clamping scheme of the fixture was analyzed,the working principle and process were described.Through analysis and validation,the de-signed fixture can meet the high precision requirement for radial hole drilling.The fixture has the advantages of simple operation,strong adapta-bility and stable machining quality.It provides reference for the high-precision radial hole drilling of shaft parts.

关 键 词：高精度径向孔 钻床夹具 定位 夹紧 

分 类 号：TG751.[金属学及工艺—刀具与模具]