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Operation of the Collaborative Composite Manufacturing CCM System
Published on: October 1, 2019
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精确的实时轨迹生成的循环运动使用FIR插值:一个trochoidal削案例研究
David Wilkinson1,2, Burak Sencer3, Rob Ward1,2
1Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, S1 3JD UK.
概括
一种新的混合插值方法通过解决动力学约束来增强动态削,以实现可持续的零缺陷制造. 这种方法可以显著减少高速形工具路径的循环时间.
科学领域:
- 制造业 工程 制造工程
- 控制系统 控制系统
- 机械加工工艺 机械加工工艺
背景情况:
- 减量制造正在向可持续性和零缺陷生产发展.
- 动态削,利用圆形和环形路径,对于效率至关重要,但由于数控机器的动力限制,面临实时实施挑战.
- 目前用于循环运动的有限脉冲响应 (FIR) 插值方法 (G02/G03) 有局限性.
研究的目的:
- 为了解决动态削现有的FIR插值方法的局限性.
- 开发一种符合动力学约束和位置公差的新型混合FIR插值方法.
- 将机器动力学,如共振频率,纳入插值策略中.
主要方法:
- 机器运动学的严格分析分析.
- 开发一种混合FIR插曲技术,适应循环运动几何.
- 与商业控制器的高性能机床上最先进的方法对比拟的方法.
主要成果:
- 这种新的混合FIR插值方法成功地满足了动力学约束和工具中心点位置公差.
- 该方法允许将机器动态集成到插值策略中.
- 与当前方法相比,基准测试显示出更高的性能,在高速形工具路径的制造周期时间中实现了高达38%的减少.
结论:
- 拟议的混合FIR插值方法为动态削提供了显著的进步.
- 这种方法通过克服动力学限制,可以实现更高效,更可持续的制造.
- 证明的循环时间缩短突显了高速加工应用的实际好处.
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