基于机床转角的叶轮流道加工刀轴控制方法

中国机械工程 ›› 2014, Vol. 25 ›› Issue (4): 439-443,450.

基于机床转角的叶轮流道加工刀轴控制方法

韩飞燕1;张定华1;党创锋2

1.西北工业大学现代设计与集成制造技术教育部重点实验室,西安,710072
2.西安星展测控科技有限公司,西安,710089

出版日期:2014-02-25 发布日期:2014-03-05
基金资助:
高等学校博士学科点专项科研基金资助项目(20106102120023)

Tool Axis Control Method Based on Machine Rotation Angle for Impeller Tunnel Milling

Han Feiyan1;Zhang Dinghua1;Dang Chuangfeng2

1.Key Laboratory of Contemporary Design and Integrated Manufacturing Technology,Ministry of Education,Northwestern Polytechnical University,Xi' an,710072
2.Xi'an Xingzhan Technology Co. Ltd., Xi' an,710089

Online:2014-02-25 Published:2014-03-05
Supported by:
Research Fund for the Doctoral Program of Higher Education of China（No. 20106102120023）

摘要/Abstract

摘要：

针对长短叶片形式叶轮流道非正交四轴加工刀轴难控制的问题,提出了一种基于线性插值的机床转角的刀轴控制方法。首先根据非正交四轴机床后置处理关系，推导机床转角与平动坐标的数学映射关系;然后在整个流道上对经过清根刀位数据后置处理后的机床转角进行线性插值,并对机床转角进行碰撞检测及修正，从而得到流道加工无干涉机床转角;进而利用映射关系实现机床平动坐标的求解。仿真实验表明,该方法能够保证刀位文件的几何信息准确，实现叶轮流道的精确加工。

关键词: 叶轮流道, 机床转角, 非正交四轴加工, 刀轴控制

Abstract:

To mill an impeller channel with different shape blades using nonorthogonal 4-axis machine, a tool axis control method based on linear interpolation of machine corner was proposed. Firstly, according to post-processing relationship of nonorthogonal 4-axis machine, the mathematical mapping of the machine rotation angle and the machine translation coordinates was established. After post-processing the clean-up CL data, a linear interpolation method was adopted to calculate the machine rotation angle of the whole impeller channel. And through the interference checking and correction, the interference-free machine rotation angle was obtained. Then the machine coordinates was solved by the
mathematical mapping. Finally, simulation results show that the method can maintain the geometric information of CL data and mill the impeller channel precisely.

Key words: impeller channel, machine rotation angle, non-orthogonal 4-axis machining, tool axis control

中图分类号:

TP391.7

韩飞燕, 张定华, 党创锋. 基于机床转角的叶轮流道加工刀轴控制方法[J]. 中国机械工程, 2014, 25(4): 439-443,450.

Han Feiyan, Zhang Dinghua, Dang Chuangfeng. Tool Axis Control Method Based on Machine Rotation Angle for Impeller Tunnel Milling[J]. China Mechanical Engineering, 2014, 25(4): 439-443,450.

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