| 刘志峰,卓旭,蔡力钢,赵永胜.可转位成型铣刀微元化几何模型的仿真研究[J].高技术通讯(中文),2012,22(9):969~974 |
| 可转位成型铣刀微元化几何模型的仿真研究 |
| Simulation research on micro element geometry model of an indexable forming milling cutter |
| 修订日期：2011-10-25 |
| DOI： |
| 中文关键词: 可转位刀片， 几何模型， 成型铣刀， 道岔尖轨 |
| 英文关键词: indexable insert, geometric model, molding cutter, tip rail turnout |
| 基金项目:国家科技重大专项（2010ZX04012 011）和北京市科技计划（D101104048710002）资助项目 |
| 作者 | 单位 | | 刘志峰 | 北京工业大学机械工程与应用电子技术学院 | | 卓旭 | 北京工业大学机械工程与应用电子技术学院 | | 蔡力钢 | 北京工业大学机械工程与应用电子技术学院 | | 赵永胜 | 北京工业大学机械工程与应用电子技术学院 |
|
| 摘要点击次数: 2969 |
| 全文下载次数: 2272 |
| 中文摘要: |
| 针对可转位立铣刀切削刃的非连续性，提出了对每齿每层刀片的切削刃进行微元化的方法，建立了可转位立铣刀的广义几何模型。基于可转位立铣刀的刀体特征，将刀体的三维模型展开成二维结构形式，采用平面坐标描述刀体各部分的几何参数，进而确定每齿每刃的二维微元表达。针对高铁道岔尖轨三个典型型面加工的成型铣刀，分别建立了圆柱以及非圆柱刀体的几何模型，给出了几何参数的计算公式，采用Matlab工具得到了切削刃微元的几何参数，并仿真出了道岔尖轨各部位铣刀切削刃角位置等微元相关几何参数。该方法及几何模型的建立为多层可转位成型铣刀切削力预报、仿真以及动态稳定性分析提供了新的手段和理论依据，对于提升高铁道岔尖轨加工质量和加工稳定性具有一定的理论意义。 |
| 英文摘要: |
| Based on the discontinuous cutting edges, a generalized geometric model for indexable milling cutters was established and a micro element method for the indexable inserts of each layer each tooth was proposed. According to the shape features of an indexable end mill cutter, the three dimensional model of the cutter body was expanded to the two dimensional structure. The plane coordinates were used to describe the geometric parameters of the various parts of the cutter body, and then the two dimensional micro expression for each edge of each tooth was determined. The forming milling cutter for processing the three typical processing surface of turnout and tip rail was taken as the research object, a cylindrical cutter body geometry model and a non cylindrical cutter body geometry model were built respectively, the mathematical geometric models were derived, and the formulas for calculating geometrical parameters were given. And then, the geometric parameters of the cutting edge micro element were obtained and the simulation on micro element parameters was conducted with Matlab system. This method provided a new means and theoretical basis for multi layer indexable milling cutters’ cutting force prediction, simulation and dynamic stability analysis. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |
