摘要
介绍了一种采用Legendre-Fourier多项式系描述圆柱要素误差的方法,分析加工圆柱要素表面出现的各种几何误差形式,给出了描述圆柱要素径向和轴向的误差的几何描述符公差模型,并研究了采用几何描述符公差模型描述圆柱要素误差的特点。该公差模型与圆柱特征的功能作用、加工制造、测量评定等特点紧密关联,使得设计公差与零件功能相一致,方便对零件的加工误差控制,降低测量评定的不确定度。
A method of using Legendre- Fourier polynomials to describe the deviation of the cylindrical features was introduced. The various forms of geometric error which appeared in machining cylindrical feature were analyzed. The functional tolerance model of geometrical descriptors which described the error of radial and axial of cylindrical elements was given. The characteristics of the functional tolerance model for describing errors of cylindrical feature were studied. The tolerance model is closely related to the function, manufacturing, measurement and evaluation of cylindrical feature. The functional tolerance model is consistent with the part＇ s function, it makes the machining error of parts easy to control and can reduce the uncertainty of measurement and evaluation.
出处
《自动化与仪器仪表》
2017年第1期16-18,21,共4页
Automation & Instrumentation
基金
国家自然科学基金项目(51475219)
