多点切触加工在复杂凸曲面中的应用

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多点切触加工在复杂凸曲面中的应用

更新时间：2025-07-09

- 多点切触加工在复杂凸曲面中的应用
- Issue 3, Pages: 53-57+63(2012)
- 作者机构：
  
  北京交通大学机械与电子控制工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TP391.72
- Online First：10 March 2012，
  
  Published：2012
- 稿件说明：
移动端阅览
[J]. 2012, (3): 53-57+63.
DOI：

[J]. 2012, (3): 53-57+63. DOI：

摘要

针对目前多点切触加工主要应用于复杂凹曲面这一现状

以汽车顶盖曲面为例

对一般性复杂凸曲面的多点切触加工进行了深入研究.先利用逆向工程技术由散乱点云数据建立了凸曲面的几何模型

然后利用旋转法对不同走刀方向下的刀位误差分布

以及一些关键参数对刀位误差分布的影响规律进行了深入分析

结果指出

在对凸曲面进行多点切触加工时

一般只有使圆环面刀具沿着凸曲面的最大主曲率方向进给

刀具表面和凸曲面之间才有可能达到两点切触

这和凹曲面多点切触加工时的情况是完全相反的.仿真和实际加工表明

将多点切触加工理论应用到复杂凸曲面上

加工效率得到明显提高

约为UG算法的2.3倍.

Abstract

To improve the current situation that multi-point contact machining has mostly been for concave sculptured surface

a strategy for general convex sculptured surface

taking a cover car convex surface as the instance

is proposed. The model of the convex surface from the scattered point clouds is reconstructed. Then the tool position error distribution for different path direction with rotary method is analyzed

and the relationship between the key parameters in rotary method and the tool position error distribution is also discussed. The results show that the condition for multi-point contact of the general convex surface is to make the toroidal cutter feed along the maximum direction of curvature of the convex surface

which gets completely opposite to the concave surface. The simulation and machining experiment show that the multi-point contact theory can heighten the machining efficiency to 2.3 times of that by UG algorithm for convex sculptured surface machining.

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references

施法中编著.计算机辅助几何设计与非均匀有理B样条[M].高等教育出版社,2001.

Andrew Warkentin,Fathy Ismail,Sanjeev Bedi.Multi-point tool positioning strategy for 5-axis mashining of sculptured surfaces[J].Computer Aided Geometric Design,2000(1).

Andrew Warkentin,Fathy Ismail,Sanjeev Bedi.Intersection approach to multi-point machining of sculptured surfaces[J].Computer Aided Geometric Design,1998(6).

A. Warkentin,S. Bedi,F. Ismail.Five-axis milling of spherical surfaces[J].International Journal of Machine Tools and Manufacture,1995(2).

樊文刚,李建勇,蔡永林,马丽梅.复杂曲面多点切触加工特征参数线刀轨规划[J].西安交通大学学报,2012(01).

樊文刚,王小椿,姜虹,蔡永林.一种开阔自由凹曲面五坐标加工多点刀位算法[J].西安交通大学学报,2010(09).

徐汝锋,陈志同,陈五一,吴献珍,朱剑军.复杂曲面五坐标加工中双线驱动刀轨规划(英文)[J].Chinese Journal of Aeronautics,2010(04).

王瑞秋,陈五一.多点切触加工的割线法[J].机械工程学报,2006(07).

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