摘要
针对薄壁叶片螺旋铣削加工中的变形问题进行了分析研究。通过建立叶片螺旋铣削加工模型、力学变形分析模型,运用力学原理对叶片加工中的扭转和弯曲变形进行分析,建立了基于叶片刚度的变形数学模型,得到了叶片加工变形与叶片几何尺寸的关系,在此基础上通过定义叶片弯扭变形作用区域的划分方法,计算总结出了叶片变形的规律。螺旋铣试验结果表明,研究的弹性变形规律与实际加工中的变形基本吻合,能够满足叶片加工补偿、数控编程等实际的工程要求。
According to the tool-path of spiral milling of blade parts ,the modeling of blades have been simplified,the materials mechanics correlation theories are carried out to analyze the torsion and bending deflection through NC programming,obtaining the relations between the rigidity change and defor- mation,finally summarize the deformable rule of blades NC programming based on the regional approach definition in distinguish bend and torsion deformation. Spiral milling experiments show that the elastic deformation rule of actual processing is basically consistent with the study,which can meet the requirements of processing compensation, NC programming in blades machining.
出处
《机械设计与制造》
北大核心
2009年第6期106-108,共3页
Machinery Design & Manufacture
关键词
薄壁叶片
螺旋铣
刚度
变形规律
Thin-walled blade
Spiral milling
Rigidity
Deformable rule
