基于LabVIEW的螺旋压力机打击力测量系统  

Strike force measuring system of screw press based on LabVIEW

作　　者：石然然[1] 李名尧[1] 张报建[1] 李晓霞[1] 马凯[1] 

机构地区：[1]上海工程技术大学材料工程学院,上海201620

出　　处：《锻压技术》2013年第5期123-126,共4页Forging & Stamping Technology

基　　金：上海市教育委员会科研创新资助项目(12ZZ183);上海工程技术大学研究生科研创新资助项目(2012yjs13)

摘　　要：基于LabVIEW的测力装置能够有效地测量大吨位压力机的打击力数据,并可以实时显示、测量、存储打击力,具有较强的实用性。利用圆环试样镦粗变形方法进行标定,可以克服摩擦系数对打击力标定的不利影响。利用有限元模拟圆环试样镦粗变形方法对打击力进行标定。结果显示,有限元模拟方法比用圆柱体和主应力法的标定精确度更高,采用低碳钢圆环标定试样也比用紫铜圆柱体试样更经济。The data of the strike force for heavy press can be measured effectively with the equipment based on LabVIEW. The strike force can be displayed, measured and stored on real time with actual utility. The strike force was calibrated by the ring upsetting,which could overcome the negative influence of the friction for the calibration. The data of the calibration were got by FEM,and the result shows that the calibration accuracy by FEM is higher than that by the cylinder upsetting with principal stress method. The low-carbon steel ring sample is also cheaper than the copper cylinder sample.

关 键 词：螺旋压力机 打击力 LABVIEW 圆环镦粗 

分 类 号：TG315[金属学及工艺—金属压力加工] TP274[自动化与计算机技术—检测技术与自动化装置]