Optimal cutter orientation for five-axis machining based on mechanical equilibrium theory
Optimal cutter orientation for five-axis machining based on mechanical equilibrium theory
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DOI：
10.1007/s00170-015-7775-x
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发表时间：
2015-09
期刊：
影响因子：
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通讯作者：
Zhiwang Gan;Zhitong Chen;Meng Zhou;Jun Yang;Shanshan Li
中科院分区：
文献类型：
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作者：
Zhiwang Gan;Zhitong Chen;Meng Zhou;Jun Yang;Shanshan Li
五轴联动加工中的刀位优化对加工效率和加工质量具有重要意义。为了实现宽带宽的切割机姿态，提出了一种基于机械平衡的切割机姿态控制方法。当刀具上定义的中点固定时，需要两个接触点，并得到两个接触点，以求刀具的平衡状态。刀具在初始定位到所需表面后，首先受到重力的作用，然后冲击到所需表面。重复该过程，直到切割器处于平衡状态。同时优化了刀具的提升量，避免了误差分布曲线上实际中点移动带来的过大误差。在实现过程中，与现有的两种方法相比，该方法明显提高了带钢宽度。
The cutter posture optimization in five-axis machining is of importance for machining efficiency and quality. In order to achieve a cutter posture with wide strip width, this paper proposes a mechanical equilibrium-based method. When the defined middle point on the cutter is fixed, two contact points are needed and obtained for seeking an equilibrium state of the cutter. After initially positioned on the desired surface, the cutter is firstly stressed by the gravity, then impact on the desired surface. The process repeats until the cutter is in an equilibrium state. The uplift of the cutter is also optimized to avoid excess that caused by the shift of the actual middle point on the error distribution curve. In the implementation, the proposed method distinctly increases the strip width compared with two existing methods.