内孔珩磨在线气动测量系统量程影响的仿真研究  

Experimental Study on the Influence of Honing Gas Viscosity on Online Pneumatic Measuring

作　　者：宁会峰[1,2] 姜懿伦 

机构地区：[1]兰州理工大学机电工程学院,甘肃兰州730050 [2]兰州理工大学数字制造技术与应用省部共建教育部重点实验室,甘肃兰州730050

出　　处：《机械设计与制造》2016年第5期189-192,共4页Machinery Design & Manufacture

基　　金：“高档数控机床与基础制造装备”科技重大专项(2011ZX04002-122);甘肃省自然科学基金(1112RJ2A025)

摘　　要：气动测量具有精度高、测量力小、能够自洁、可以在比较恶劣的加工环境中使用的特点,因而被广泛应用于珩磨加工中。珩磨加工中的在线测量通常采用气动在线测量方法,但是,气动式测量的量程较小,制约着其在加工尺寸变化范围大的场合的使用。针对此种不足,基于FLUENT以气体介质参数为研究对象,并以差压型气动测量公式为基础,推导了气体粘度对测量量程的影响规律,进行了仿真研究。结果表明,气体介质的粘性影响了气动测量的范围和分辨率,正确选择不同种类的气体介质可以满足不同的在线测量要求。The pneumatic measuring method has the characteristics of high precision,small measuring force,self cleaning. So it is widely used in the honing process. The online measurement of honing process usually adopts pneumatic measurement method. However,the measurement range of pneumatic measurement is very small.It restricts the use of the large change in the size of the processing.Aiming at the shortage of this kind of measurement,taking the gas medium parameters as the research object based on FLUENT. The influence of gas viscosity on measuring range is deduced based on the formula of differential pressure type pneumatic measurement. Then simulation studies are carried out.The results show that the viscosity of the gas medium affects the range and resolution of the pneumatic measurement. Choosing correct kinds of gas medium can meet the different requirements of online measurement.

关 键 词：珩磨加工 气动测量 气体介质 测量量程 

分 类 号：TG580.622[金属学及工艺—金属切削加工及机床]