基于关键刀轴矢量插值的球头铣刀五轴加工光顺刀轴矢量生成方法

doi:10.3969/j.issn.1004-132X.2023.20.009

中国机械工程 ›› 2023, Vol. 34 ›› Issue (20): 2466-2474.DOI: 10.3969/j.issn.1004-132X.2023.20.009

• 智能制造 • 上一篇

基于关键刀轴矢量插值的球头铣刀五轴加工光顺刀轴矢量生成方法

卢耀安1,2,3;丘洪键1,2,3;王成勇1,2,3

1.广东工业大学机电工程学院,广州,510006
2.广东省微创手术器械设计与精密制造重点实验室,广州,510006
3.高性能工具全国重点实验室,广州,510006

出版日期:2023-10-25 发布日期:2023-11-20
作者简介:卢耀安，男，1988年生，博士、副教授。研究方向为复杂曲面多轴数控加工技术。E-mail:luyaoan@gdut.edu.cn。
基金资助:
佛山市核心技术攻关项目(1920001000818)；广东省自然科学基金(2022A1515010474)

Smooth Tool Orientation Generation Method of Five-axis Ball-end Milling via RTOs Interpolation

LU Yaoan1,2,3;QIU Hongjian1,2,3;WANG Chengyong1,2,3

1.School of Electromechanical Engineering,Guangdong University of Technology,Guangzhou,510006
2.Guangdong Provincial Key Laboratory of Minimally Invasive Surgical Instruments and
Manufacturing Technology,Guangdong University of Technology, Guangzhou,510006
3.State Key Laboratory for High Performance Tools,Guangzhou,510006

Online:2023-10-25 Published:2023-11-20

摘要/Abstract

摘要： 提出基于贪心策略的复杂曲面加工刀具路径关键刀轴矢量序列整体优化方法，以及基于关键刀轴矢量插值的球头铣刀五轴加工复杂曲面光顺刀具姿态生成方法。计算各关键刀位刀触点处的刀轴矢量可行域，基于贪心策略从刀轴矢量可行域中选择关键刀轴矢量序列并且插值关键刀轴矢量序列，检查加工路径刀轴矢量序列是否存在碰撞干涉，进而获得可行的关键刀轴矢量序列集合。根据光顺评价指标从可行的关键刀轴矢量序列集合中选择最优的关键刀轴矢量序列，然后获得整个加工路径光顺的刀轴矢量序列。试验结果表明，该方法生成的复杂曲面加工刀具姿态能够使机床旋转轴运动平稳。

关键词: 关键刀轴矢量, 光顺刀轴, 球头铣刀, 五轴加工

Abstract: A method of determining the RTOs was proposed herein based on a greedy strategy, and a method of generating smooth tool orientations was proposed for five-axis ball-end milling via RTOs interpolation. The feasible domains of the tool orientation at the cutter contact points of each RTO were calculated. Then the RTOs along the tool path were selected from the tool orientation feasible domains based on the greedy strategy, and the RTOs were interpolated to check whether the tool orientations along the whole tool path occured collision. Afterward, the feasible RTOs set was obtained. The optimal RTOs were selected from the feasible RTOs set according to the tool path smooth evaluation indicators, and then the whole tool path was acquired. The test results show that the tool path of the complex surface generated by the proposed approach may make the machine tool rotary axes move smoothly.

Key words: , representative tool orientation（RTO）, smooth tool orientation, ball-end milling, five-axis machining

中图分类号:

TG506

卢耀安, 丘洪键, 王成勇, . 基于关键刀轴矢量插值的球头铣刀五轴加工光顺刀轴矢量生成方法[J]. 中国机械工程, 2023, 34(20): 2466-2474.

LU Yaoan, QIU Hongjian, WANG Chengyong, . Smooth Tool Orientation Generation Method of Five-axis Ball-end Milling via RTOs Interpolation[J]. China Mechanical Engineering, 2023, 34(20): 2466-2474.

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基于关键刀轴矢量插值的球头铣刀五轴加工光顺刀轴矢量生成方法

Smooth Tool Orientation Generation Method of Five-axis Ball-end Milling via RTOs Interpolation

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