一种平行片簧结构扫描测头的研制  

Research on a Type of Parallel Spring Mechanism Scanning Probe

作　　者：费致根[1,2] 刘宇 郭俊杰[2] 

机构地区：[1]郑州轻工业学院机电学院,河南郑州450002 [2]西安交通大学机械制造系统工程国家重点实验室,陕西西安710049 [3]中航光电科技股份有限公司制造技术部,河南洛阳471003

出　　处：《郑州大学学报（工学版）》2011年第4期116-119,共4页Journal of Zhengzhou University（Engineering Science）

基　　金：国家“863”资助项目(2008AA042404)

摘　　要：针对凸轮轴及曲轴测量的实际需要,设计了一种一维扫描测头,建立了测头的力学理论模型,并重点研究其核心部件平行片簧机构的受力变形理论,推导完善了平行片簧机构的变形公式.定量分析了影响测头测量精度的因素,找出误差产生的根源.以凸轮轴测量仪为实验平台完成了测头的性能实验,采用VDI-3441评价标准得到测头的重复定位误差为1.72μm.Based on practical measuring requirement of camshaft and crankshaft,a specific one-dimensional scanning probe is designed and its mechanics theory model is established.As a research emphasis,the force deformation theory of parallel spring mechanism is investigated,and its deformation formula is derived and improved.The factors which have a quantitative effect on probe accuracy are discussed and the error sources are located.Finally,the VDI-3441 criterion is applied to evaluate the repetitive position error of probe.The testing result shows that its repetitive position error is within 1.72 μm.

关 键 词：平行片簧结构 扫描测头 误差分离 坐标测量机 

分 类 号：TG806[金属学及工艺—公差测量技术]