基于五轴机床旋转干涉的旋转路径优化算法

发布时间：2018-01-15 04:24

本文关键词：基于五轴机床旋转干涉的旋转路径优化算法　出处：《组合机床与自动化加工技术》2017年11期 　论文类型：期刊论文

更多相关文章： AC/BC 后置处理 旋转路径 旋转干涉

【摘要】：针对AC/BC五轴数控机床旋转轴不合理运动引发的干涉现象,提出一套基于五轴机床旋转干涉的旋转角优化算法,该算法能够自动计算出一条最优的旋转路径,为解决旋转干涉问题提供理论支撑。首先,根据五轴机床旋转运动方程及机床行程,得到解的特性;其次,分析旋转干涉产生的机理,给出旋转干涉判定依据;再次,建立旋转路径优化算法,寻找一条最优旋转路径;最后,通过两个五轴轮廓铣加工实例来验证该算法的可行性。该算法最大程度上避免了机床旋转干涉,在国内某数控厂得到了一定应用。
[Abstract]:Aiming at the interference caused by the unreasonable movement of the rotation axis of AC/BC five-axis CNC machine tool, a set of rotation angle optimization algorithm based on the rotation interference of the five-axis machine tool is proposed. The algorithm can automatically calculate an optimal rotation path, which provides theoretical support for solving the problem of rotating interference. Firstly, the characteristics of the solution are obtained according to the equation of rotation motion of the five-axis machine tool and the travel of the machine tool. Secondly, the mechanism of rotating interference is analyzed, and the judgment basis of rotation interference is given. Thirdly, an optimal rotation path algorithm is established to find an optimal rotation path. Finally, two examples of five-axis contour milling are given to verify the feasibility of the algorithm, which can avoid machine tool rotation interference to the greatest extent and has been applied in a CNC factory in China.
【作者单位】：北京航空航天大学机械工程及自动化学院;
【基金】：基金项目:高精数控机床与基础制造装备(2012ZX04010051)
【分类号】：TG659
【正文快照】： 0引言五轴数控加工普遍存在旋转干涉而损伤刀具和零件,旋转干涉问题亟待解决,国内外针对五轴数控机床旋转轴角度优化进行了大量研究,文献[1-2]研究了AB双转台机床旋转角的优化算法,武跃[3]研究了AC双转台机床旋转角的优化,该算法整体上对A、C轴采用最短路径(Dijkstra)思想,没

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