东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2015, Vol. 36 ›› Issue (1): 95-99.DOI: 10.12068/j.issn.1005-3026.2015.01.021

• 机械工程 • 上一篇    下一篇

滚齿切削厚度仿真计算

张荣闯， 王宛山， 王军   

  1. (东北大学 机械工程与自动化学院， 辽宁 沈阳110819)
  • 收稿日期:2013-12-23 修回日期:2013-12-23 出版日期:2015-01-15 发布日期:2014-11-07
  • 通讯作者: 张荣闯
  • 作者简介:张荣闯(1984-)，男，辽宁灯塔人，东北大学博士研究生;王宛山(1946-)，男，辽宁沈阳人，东北大学教授，博士生导师;王军(1956-)，男，辽宁沈阳人，东北大学教授，博士生导师.
  • 基金资助:
    国家高技术研究发展计划项目(2012AA041303).

Simulation Calculation of Undeformed Chip Thickness in Gear Hobbing

ZHANG Rong-chuang， WANG Wan-shan， WANG Jun   

  1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China.
  • Received:2013-12-23 Revised:2013-12-23 Online:2015-01-15 Published:2014-11-07
  • Contact: ZHANG Rong-chuang
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摘要： 为了解决滚切力模型在应用中瞬时几何边界参数的提取问题，提出一种基于三维实体造型技术的滚齿切削厚度仿真计算方法.该方法考虑未变形切屑是滚刀扫掠几何实体与工件几何实体的交集，包含几何边界条件信息.首先通过布尔减运算得到未变形切屑，然后通过瞬时刀齿前刀面与切屑几何实体进行求交运算，得到包含切削范围信息的由样条曲线所构造成的CWE(cutter/workpiece engagement)，进而在其上进行切削厚度的提取.该方法的实现为动态滚切力的精确预测奠定了基础.

关键词: 3D实体造型, 滚切力, 未变形切屑, CWE, 几何边界参数, 切削厚度

Abstract: To solve the instantaneous geometric boundary parameters applied in hobbing force model， a method of simulation calculation of undeformed chip thickness based on the 3D solid modeling was presented. The undeformed chip， which is the intersection between swept volume of hob and workpiece， contains the information of geometric boundary parameters. Boolean operation is used to acquire the undeformed chip. By means of intersection operations on the rake plane of instantaneous hob teeth and the geometric entities of chip， CWE (cutter/workpiece engagement) that includes the information of cutting range constructed by the splines， was obtained. The undeformed chip thickness was extracted from CWE. This method lays a foundation for the precise prediction of dynamic hobbing force.

Key words: 3D solid modeling, hobbing force, undeformed chip, CWE(cutter/workpiece engagement), geometric boundary parameters, cutting thickness

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