ABSTRACT

Tool path planning is critical to fully realise the producing capabilities of multi-axis machine tools and improve the precision and efficiency in multi-axis machining. Up to now, more than 400 articles have been published for tool path planning of multi-axis machine tools. Among them, most of the articles mainly focus on the topology of tool path while few studies are conducted for planning of tool orientation. Moreover, the factors that affect the planning of tool orientation are derived from multiple aspects, such as interference, collision and cutting strip width, which poses great challenges on tool orientation planning. To generate a time-optimal tool path with high machining precision, there is an urgent need to ascertain the influences of tool orientation arrangement on the multi-axis machining process. Therefore, in this work, a literature review on tool orientation planning of multi-axis machine tools is implemented. The main factors that influence the planning of tool orientations are systematically summarised, and the advantages and disadvantages of the corresponding methods related to these factors are discussed. Some research issues and challenges encountered in the tool orientation planning are identified. Furthermore, the methodologies that have potential to address the research issues in the future are prospected.

摘要

刀具路径规划对于充分发挥多轴机床的生产能力，提高多轴加工精度和效率至关重要。截至目前，已发表多轴机床刀具路径规划文章400余篇。其中，大多数文章主要集中在刀具路径的拓扑结构上，而很少对刀具方向的规划进行研究。而且，影响刀具定向规划的因素来自多个方面，如干涉、碰撞和切割带材宽度，这对刀具定向规划提出了很大的挑战。为了生成具有高加工精度的时间最优刀具路径，迫切需要确定刀具方向布置对多轴加工过程的影响。因此，在这项工作中，实施了多轴机床刀具定向规划的文献综述。系统总结了影响刀具方向规划的主要因素，并讨论了与这些因素相关的相应方法的优缺点。确定了工具定向规划中遇到的一些研究问题和挑战。此外，展望了有可能解决未来研究问题的方法。确定了工具定向规划中遇到的一些研究问题和挑战。此外，展望了有可能解决未来研究问题的方法。确定了工具定向规划中遇到的一些研究问题和挑战。此外，展望了有可能解决未来研究问题的方法。