摘要
由于传统的二维粗糙度仪不能从整体上表示出零件的微观特性,而三维光学粗糙度仪只能在实验室使用,不能适应工业现场的场合。所以,在分析传统二维粗糙度仪的结构基础上,改装设计了机械式的三维粗糙度仪。提出了用最小二乘法来拟合基准面;并且根据总结的三维表征参数体系,用LabVIEW编写了一套上位机软件系统。软件能够自动的计算三维粗糙度值,并且显示出零件的三维表面形貌。最后在试验中验证了三维参数的评定方法,测试表明,这些参数能有效表征表面粗糙度,能够克服原二维参数统计性差,测量存在较大偏差的不足,更加接近真实表面。
The traditional two-dimensional roughmeter can not express the whole microscopic characteristics of the parts,while the three-dimensional optical roughmeter can only be used in the laboratory,but also can not be adapt to the occasion of the industrial field.So based on the analysis of traditional two-dimensional roughmeter＇s structure,three-dimensional roughmeter was designed;and the least squares method to fit the plane was used;according to the summed evaluation method for three-dimensional roughness parameters,the software system was programmed with LabVIEW.The three-dimensional parameters are validated by the test.The test shows that the surface can be effectively characterized by these parameters,which are able to overcome bad parametric statistics,large measuring deviation of the original two-dimensional parameters,closer to the real surface.
出处
《机械设计与制造》
北大核心
2013年第5期29-31,共3页
Machinery Design & Manufacture
基金
中国地质大学(武汉)教学实验室开放基金项目(SKJ2011099)
湖北省自然科学基金资助(2011075057)
关键词
三维粗糙度
参数评定
LABVIEW
Three-Dimensional Roughness
Parameters Evaluation
LabVIEW
