| 机床沿曲线高速加工时的运动学与动力学特性分析 |
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| 引用本文： | 陈金成,徐志明,钟廷修,蒋厚宗.机床沿曲线高速加工时的运动学与动力学特性分析[J].机械工程学报,2002,38(1):31-34. |
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| 作者姓名： | 陈金成 徐志明 钟廷修 蒋厚宗 |
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| 作者单位： | 1. 上海交通大学机械工程学院,上海,200030
2. 上海交通大学 |
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| 基金项目： | 家863计划资助项目（863－512－06－04） |
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| 摘 要： | 详细分析了刀具沿曲线加工时，刀具路径几何特性（位置、切向矢量、曲率）与机床的运动学特性（进给速度、加速度）以及动力学特性（伺服电动机驱动力、切削负载、摩擦力）之间的关系。并采用解析的方法，计算了在各轴加速度和伺服电动机驱动力约束条件下，机床沿曲线加工时的最大安全进给速度。分析结果表明刀具路径几何特性对机床的运动学和动力学特性有很大的影响。
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| 关 键 词： | 数控机床 高速加工 进给速度 运动学 动力学 |
| 修稿时间： | 2001年3月15日 |
ANALYSING KINEMATIC AND DYNAMIC PROPERTIES OF A MACHINE TOOL ALONG CURVED TOOL PATH IN HIGH MACHININGChen Jincheng Xu Zhiming Zhong Tingxiu |
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| Chen Jincheng,Xu Zhiming,Zhong Tingxiu,Jiang Houzong.ANALYSING KINEMATIC AND DYNAMIC PROPERTIES OF A MACHINE TOOL ALONG CURVED TOOL PATH IN HIGH MACHININGChen Jincheng Xu Zhiming Zhong Tingxiu[J].Chinese Journal of Mechanical Engineering,2002,38(1):31-34. |
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| Authors: | Chen Jincheng Xu Zhiming Zhong Tingxiu Jiang Houzong |
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| Affiliation: | Shanghai Jiaotong University |
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| Abstract: | The relationships between geometrical properties of cutter path, including position, tangent and curvature, and kinematics and dynamics of a machine tool including feedrate, acceleration and driving force, are analyzed in detail. The analytical method of obtaining maximum safe feedrate along a curved cutter path with driving force and acceleration constraints is also introduced. The result shows there are great influences of geometrical properties of cutter path on the kinematics and dynamics of a machine tool. |
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| Keywords: | CNC machine High speed machining Feedrate Kinematics Dynamics |
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