| 高速凸轮摆杆机构参数化设计技术研究 |
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| 作者姓名： | 蔡小尧 车文刚 陈文兵 |
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| 作者单位： | 昆明理工大学信息工程与自动化学院,云南昆明 650500;云南烟草机械有限责任公司,云南昆明 650106;昆明理工大学信息工程与自动化学院,云南昆明 650500 |
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| 摘 要： | 针对高速凸轮摆杆机构参数化设计过程中从动件摆动引起的凸轮转角偏移问题，分析了凸轮转
角偏移产生的原因及影响，提出了基于转角补偿量的参数化设计数学模型，实现了凸轮参数到凸轮轮廓曲线的
精确映射。以改进正弦运动规律为例，基于 UG 软件和二次开发平台实现了凸轮摆杆机构参数化设计和特征曲
线可视化，并通过 UG 运动仿真验证了数学模型和特征曲线的准确性。研究结果表明：推程和回程运动阶段凸
轮轮廓曲线对应的圆心角对比凸轮转角都发生了不同程度的偏移；基于转角补偿量的数学模型可以降低凸轮从
动件的最大加速度，实现凸轮轮廓曲线的精确设计，同时简化了凸轮摆杆机构的设计和修改流程，极大的提高
了设计效率。
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| 关 键 词： | 参数化设计 凸轮摆杆机构 凸轮转角偏移 UG二次开发 NX/Open |
Research on parametric design technology of high speedcam mechanism with oscillating follower |
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| Authors: | CAI Xiao-yao CHE Wen-gang CHEN Wen-bing |
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| Affiliation: | 1. School of Information Engineering and Automation, Kunming University of Science and Technology, Kunming Yunnan 650500, China;
2. Yunnan Tobacco Machinery Co. Ltd., Kunming Yunnan 650106, China |
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| Abstract: | Aiming at the problems of cam angle deviation caused by follower swing in the parametric design process
of high-speed cam mechanism with oscillating follower, this paper analyzed the causes and effects of cam angle
deviation, proposed a mathematical model of parametric design based on angle compensation, and realized the
accurate mapping from cam parameters to cam profile curve. Taking the improved sinusoidal motion law as an example,
parametric design and characteristic curve visualization of cam mechanism with oscillating follower were realized based
on UG software and secondary development platform, and the accuracy of mathematical model and characteristic curve
was verified by UG motion simulation. The results show that the center angle of the cam profile curve is different from
the cam angle in push and return stages, and that the mathematical model based on the angle compensation can reduce the
maximum acceleration of the cam follower, realize the accurate design of the cam profile curve, simplify the design and
modification process of the cam swing mechanism, and greatly improve the design efficiency. |
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| Keywords: | parametric design cam mechanism with oscillating follower cam angle deviation UG secondary development NX/Open |
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