基于遗传算法的多主轴头加工空行程轨迹规划

TP301%TG659; 针对多主轴头五轴机床加工时需手动规划空行程的问题,提出一种空行程轨迹自动规划方法.在机床运动学建模的基础上,针对刀位点轨迹和刀轴矢量,分别提出基于最短路径的刀位点轨迹规划和无碰撞刀轴矢量规划,将空行程规划问题转化为参数优化问题.为了简化碰撞检测,提出两级相交检测算法.通过加权系数法建立空行程规划的目标函数,并采用遗传算法求解,规划出一条无碰撞、运动时间最短、旋转轴角度变化量最小、末端轨迹最短的具有柔性的理想轨迹.在Vericut建立的仿真平台上,验证了该方法的可行性和有效性.所提方法具有拓展性,通过多次分解轨迹求取棱交点能够实现复杂工件的空行程规划....

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Published in计算机集成制造系统 Vol. 28; no. 2; pp. 507 - 517
Main Authors 崔榕芳, 陈蔚芳, 潘立剑, 朱帅, 刘振华
Format Journal Article
LanguageChinese
Published 南京航空航天大学 机电学院,江苏 南京 210016%江苏中智自动化有限公司,江苏 泰州 225300 01.02.2022
Subjects
轨迹规划;无干涉;多主轴头加工;遗传算法;最短路径
Online AccessGet full text
ISSN1006-5911
DOI10.13196/j.cims.2022.02.015

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Abstract TP301%TG659; 针对多主轴头五轴机床加工时需手动规划空行程的问题,提出一种空行程轨迹自动规划方法.在机床运动学建模的基础上,针对刀位点轨迹和刀轴矢量,分别提出基于最短路径的刀位点轨迹规划和无碰撞刀轴矢量规划,将空行程规划问题转化为参数优化问题.为了简化碰撞检测,提出两级相交检测算法.通过加权系数法建立空行程规划的目标函数,并采用遗传算法求解,规划出一条无碰撞、运动时间最短、旋转轴角度变化量最小、末端轨迹最短的具有柔性的理想轨迹.在Vericut建立的仿真平台上,验证了该方法的可行性和有效性.所提方法具有拓展性,通过多次分解轨迹求取棱交点能够实现复杂工件的空行程规划.
AbstractList TP301%TG659; 针对多主轴头五轴机床加工时需手动规划空行程的问题,提出一种空行程轨迹自动规划方法.在机床运动学建模的基础上,针对刀位点轨迹和刀轴矢量,分别提出基于最短路径的刀位点轨迹规划和无碰撞刀轴矢量规划,将空行程规划问题转化为参数优化问题.为了简化碰撞检测,提出两级相交检测算法.通过加权系数法建立空行程规划的目标函数,并采用遗传算法求解,规划出一条无碰撞、运动时间最短、旋转轴角度变化量最小、末端轨迹最短的具有柔性的理想轨迹.在Vericut建立的仿真平台上,验证了该方法的可行性和有效性.所提方法具有拓展性,通过多次分解轨迹求取棱交点能够实现复杂工件的空行程规划.
Author 崔榕芳
朱帅
陈蔚芳
刘振华
潘立剑
AuthorAffiliation 南京航空航天大学 机电学院,江苏 南京 210016%江苏中智自动化有限公司,江苏 泰州 225300
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PAN Lijian
ZHU Shuai
LIU Zhenhua
CHEN Weifang
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