五轴电火花机床加工空间斜孔的电极定位参数研究

李康康; 夏庆国; 万坤

doi:10.13433/j.cnki.1003-8728.20200574

五轴电火花机床加工空间斜孔的电极定位参数研究

doi: 10.13433/j.cnki.1003-8728.20200574

1.
南昌航空大学航空制造工程学院，南昌　330063
2.
中国航发南方工业有限公司，湖南株洲　412000

基金项目: 江西省重点研发计划项目（20212BBE53032）与江西省自然科学基金项目（20202BABL214029）

详细信息

作者简介:
夏庆国：李康康(1987−)，讲师，博士，研究方向为航空制造工程与机器人设计， likangakang@nchu.edu.cn

中图分类号: TG661
计量
- 文章访问数: 105
- HTML全文浏览量: 64
- PDF下载量: 15
- 被引次数: 0
出版历程
- 收稿日期: 2021-02-02
- 网络出版日期: 2023-03-27
- 刊出日期: 2023-02-25

Study on Electrode Positioning Parameters of Spatial Inclined Hole in 5-axis EDM Processing

1.
School of Aeronautic Manufacturing Engineering, Nanchang Hangkong University, Nanchang 330063, China
2.
AECC South Industry Co., Ltd., Zhuzhou 412000, Hu′nan, China

摘要

摘要: 空间斜孔的加工实质上是电火花机床电极沿孔的轴线的运动。对于由3个坐标轴旋转变换得到的空间斜孔，可通过五轴电火花机床沿3个坐标轴方向上的平移运动和绕两个坐标轴方向的旋转运动，使机床电极轴线与空间斜孔轴线重合，为此需要求解加工空间斜孔的电极定位参数。分析了通过坐标系旋转平移变换得到空间斜孔轴线的过程。根据空间斜孔的空间角度和几何参数求解空间斜孔轴线矢量的坐标变换矩阵，以建立空间斜孔轴线的矢量模型。得到了五轴数控电火花机床加工空间斜孔的电极摆角和电极定位坐标，使电极轴线与空间斜孔轴线重合。并制作了根据空间斜孔几何参数自动求解数控电火花机床的电极摆角和电极坐标的计算软件。
- 空间斜孔 /
- 电火花机床 /
- 坐标变换 /
- 电极坐标 /
- 电极摆角
Abstract: The machining of spatial inclined holes is essentially the movement of the electrode of Electrical discharge machining(EDM) along the axis of the hole. For the spatial inclined holes obtained by rotating around three coordinate axes, the electrode axis of the machine tool can be coincided with the axis of the spatial inclined hole by the translation along the three axis and the rotation around the two axis of the 5-axis EDM machine tool. In order to obtain the swinging angle and coordinates of the electrode, the process of obtaining the axis of space oblique hole by coordinate rotation-translation transformation was analyzed. According to the spacial angle and geometric parameters of the spacial inclined hole, the coordinate transformation matrixs of the spacial inclined holes were solved and the vector models of axes of spacial inclined holes were established. The swinging angle and coordinates of the electrode of 5-axis CNC(Computer numerical Control) EDM were obtained to make the axis of electrode on the line of the axis of the spacial inclined hole. According to the geometrical parameters of the spacial inclined hole, a software was developed to calculate the swinging angle and electrode coordinates.
- spatial inclined hole /
- electrical discharge machining(EDM) /
- coordinate transformation /
- electrode coordinate /
- swinging angle

HTML全文

图 1 空间斜孔三维图几何参数

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图 2 空间斜孔平面图

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图 3 五轴电火花机

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图 4 电极定位参数计算程序

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图 5 电极加工好的空间斜孔

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