| 复杂曲面五轴侧铣加工的运动学优化方法 |
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| 引用本文： | 张立强,王克用,王宇晗. 复杂曲面五轴侧铣加工的运动学优化方法[J]. 中国机械工程, 2011, 22(21) |
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| 作者姓名： | 张立强 王克用 王宇晗 |
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| 作者单位： | 1. 上海工程技术大学,上海,201620
2. 上海交通大学,上海,200240 |
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| 基金项目： | 国家自然科学基金资助项目(50875171); 上海高校选拔培养优秀青年教师科研专项基金资助项目(gjd09003) |
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| 摘 要： | 针对五轴侧铣加工中刀轴的运动可能导致加工材料过切与效率低下的问题,提出采用多约束自适应的刀轴运动学优化方法来解决该问题。建立球头铣刀在刀具路段上的运动学模型,通过分析刀轴运动对刀刃微元去除材料的影响,确定刀轴运动优化的约束条件。在虚拟环境中仿真复杂曲面五轴侧铣加工过程,通过自适应控制器调整刀轴运动速度,使机床在多约束加工条件下最大限度地发挥其工作潜能。整个刀轴运动规划过程随刀具与工件接触区域的变化而不断优化,最后将优化结果存储在每个刀位点上。仿真与实验结果表明,刀轴自适应控制的运动学优化方法有效可行,为五轴侧铣加工过程提供了有力的分析工具。
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| 关 键 词： | 五轴 侧铣 运动学模型 自适应控制 |
Kinematical Optimum Method for Five-axis Flank Milling Complex Surfaces |
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| Zhang Liqiang Wang Keyong Wang Yuhan. Kinematical Optimum Method for Five-axis Flank Milling Complex Surfaces[J]. China Mechanical Engineering, 2011, 22(21) |
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| Authors: | Zhang Liqiang Wang Keyong Wang Yuhan |
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| Affiliation: | Zhang Liqiang1 Wang Keyong1 Wang Yuhan2 1.Shanghai University of Engineering Science,Shanghai,201620 2.Shanghai Jiaotong University,200240 |
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| Abstract: | The overcut problem and low efficiency in five-axis flank milling can be made possibly due to tool axis motion,therefore a kinematic method based on adaptive control was presented herein to solve this problem.The kinematical model was constructed and analyzed in every cutter location segment.Then the tool motion effect on chip removal was analyzed and tool axis motion constraints were determined.The five-axis milling process was simulated in a virtual environment,and a simple controller was adaptively tuned... |
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| Keywords: | five-axis flank milling kinematical model adaptive control |
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