文档介绍：摘要
表面粗糙度作为形状误差的要素之一,直接影响零件精度、性能和质量,在有些场合,甚至是决定因素。基于此,本课题以筒体内孔表面粗糙度误差测量机构作为主要研究对象,在了解国内外所有研究表面粗糙度测量的现状和动态基础之上,进行了测量装置的总体结构设计。本文中包括了定位,驱动,传动等机构设计,并选择了传感器和对表面粗糙度测量误差进行了分析。
本文所设计的测量装置与其他测量装置相比有了较大的创新,该装置对筒体的测量实现数据的自动数据采集及处理,较好地解决了筒体内孔表面粗糙度误差测量。本系统设计思路将对其它相关设计提供重要的参考依据。
关键词:筒体,测量机构,测量误差
Big cylinder body surface roughness measurement device design
Abstract
As one of error of shape, Surface harshness directly precision, capability and quantity of instrument. At some situation, Surface harshness is determinant indeed. On the base, the task took instrument of long pipe part's Surface harshness as mostly researching object. The measuring principle of Surface harshness for the long pipes is designed in this paper, which is based on the research of the status in foundation and the trends on this paper consists of the designment of placing structure, moving structure and giving structure .It also consists of the choice of the transducer and the nalyzement of the measuring error of the measuring system.
The measuring device dolly discussed in this paper has made a greater pared with other measuring devices. During its measuring, it can collect the data, process the measuring error on line, and display the information of any section on the pletely. The result of this system research also provides important reference for other correlative design.
Key Words:long pipe,measuring device,measuring error
目录
摘要 II
Abstract III
引言 1
1 绪论 2
国内外发展现状 2
发展趋势与展望 3
形状误差测量的定义和方法 3
大直径筒体内孔表面粗糙度误差测量装置的设计 7
2 总体方案设计 9
本设计方案 9
撑脚的设计 10
齿条的设计 11
齿轮的设计 12
测量部分位置升降的设计 13
滚轮部分的设计 13
支架的设计 14
3 电动机的选择与计算 16
步进电机的概述 16
步进电机的现状和发展趋势 16
步进电机的计算和选用 18
4 传感器的选择 23
传感器的组成 23
传感器的分类 24
传感器的选择原则 25
本设计中传感器的选择 27
5 测量装置附件的设计 29
夹具的设计 29
轴承的选择 30
弹簧的选用 34
6 表面粗糙度误差测量 36
表面粗糙度误差的定义 36
测量基准 36
数据处理 37
表面粗糙度测量数据处理 39
表面粗糙度测量误差分析 40
结论 41
参考文献 42
致谢 43
引言