摘要
平面度是形状公差的主要项目之一,其误差的测量与评定在几何量测量中有着重要的意义。分析了常用的近似评定法(三点法、对角线法、最小二乘法等)存在的局限性,根据最小区域法的定义,给出了基准平面方程及平面度误差评定目标函数数学模型的建立方法,并举例说明了采用Matlab进行平面度误差的计算。结果证明该方法利用Matlab只需要进行简单的矩阵运算,具有简单实用的特点。
The flatness is mostly one of the form tolerance. It is the signification to measure and assess the flatness in measuring of the geometric parameter. This paper analyses the localization of commonly approximately assess methods, such as the three point method, the catercorner method and the least square method and so on. According to the definition of the minimum zone method, the mathematical model is presented for evaluating flatness error and establishing datum plane equation. Matlab is used to calculate flatness error. The result show the method is simple and practical.
出处
《组合机床与自动化加工技术》
2005年第9期58-59,共2页
Modular Machine Tool & Automatic Manufacturing Technique
