锻压技术

基于制动工况的平行连杆式锻造操作机控制精度研究

英文标题：Study on control precision of parallel link-forging manipulator under braking condition

作者：杨晓波刘艳妍杨晋何琪功

分类号：TG315.4

出版年,卷(期):页码：2017,42(8):77-82

摘要：

制动工况所产生的惯性冲击严重影响着操作机的工作精度，并限制其快速响应能力。针对平行连杆式锻造操作机，利用拉格朗日方程法建立了制动工况下悬挂系统动力学模型，分析了系统中回弹装置和缓冲装置的耦合性能对系统控制精度的影响，研究了减少操作机控制精度误差的思路。以300 kN锻造操作机为例，采用Matlab求解动力学微分方程，获得了制动工况下的回弹装置和缓冲装置对悬挂系统转臂摆角、吊杆摆角和钳杆质心的变化规律，明确了悬挂系统中回弹装置和缓冲装置的耦合性能对提高操作机控制精度的作用。并利用Adams软件对操作机进行动力学仿真，得到了制动工况下悬挂系统中回弹装置和缓冲装置的耦合性能对系统振动影响的仿真实验曲线，进一步验证了理论分析的可行性与合理性。

The working accuracy and fast-response ability of the forging manipulator is severely restricted by the inertial impact effect caused by braking condition. For the parallel link-forging manipulator, the dynamics model of suspension system was built by Lagrange equation under the braking condition. Then, the influences of coupling performance of the springback device and buffer device in the system on the control precision were analyzed, and the method of reducing the error of manipulator control precision was researched. Taking the 300 kN forging manipulator as an example, the dynamic differential equation was solved by Matlab, and the influence regulation of the springback device and buffer device under the braking condition on the tumbler swing angle, the hanging bar swing angle and the clamping bar centroid was obtained. Furthermore, the springback device and buffer device coupling performance on improving the manipulator control precision was confirmed. Finally, the dynamic simulation on manipulator was conducted, and the simulation experiment curve influencing of the springback device and buffer device coupling performance in the suspension system under the braking condition on system vibration was obtained. The feasibility and rationality of the theoretical analysis were verified further.

基金项目：

国家自然科学基金资助项目(51265022)；甘肃省科技计划资助项目(145ＲJZA187)

杨晓波(1991-)，男，硕士研究生杨晋(1961-)，男，学士，教授

参考文献：

［1］高峰，郭为忠，宋清玉，等. 重型制造装备国内外研究与发展[J]. 机械工程学报，2010, 46(19): 92-107.Gao F, Guo W Z, Song Q Y, et al. Current development of heavy-duty manufacturing equipments [J]. Journal of Mechanical Engineering, 2010, 46(19):92-107.
［2］杨文玉，孟富明. 锻造操作机顺应性能评价与优化方法[J].机械工程学报，2010, 46(23): 121-127.Yang W Y, Meng F M. Evaluating and optimization method of forging manipulator compliance [J]. Journal of Mechanical Engineering, 2010, 46(23):121-127.
［3］Chen G, Wang H, Zhao K, et al. Modular calculation of the Jacobian matrix and its application to the performance analyses of a forging robot [J]. Advanced Robotics, 2009, 23(10): 164-179.
［4］余发国，高峰，史巧硕. 基于ＧＦ集的锻造操作机构型方法[J]. 机械工程报，2008, 44(11): 152-159.Yu F G, Gao F, Shi Q S. Type synthesis for forging manipulator based on GF Set [J]. Journal of Mechanical Engineering, 2008, 44(11): 152-159.
［5］Xu Y D. Inverse dynamics and internal forces of the redundantly actuated parallel manipulators [J]. Mechanism and Machine Theory, 2012, 51(11) 172-184.
［6］Yang W. Evaluating and optimization method of forging manipulator compliance [J]. Journal of Mechanical Engineering, 2010, 46(23): 121-127.
［7］傅新，徐明，王伟，等.锻造操作机液压系统设计与仿真[J]. 机械工程学报，2010, 46(11): 49-54.Fu X, Xu M, Wang W, et al. Hydraulic system design and simulation of the forging manipulator [J]. Journal of Mechanical Engineering, 2010, 46(11):49-54.
［8］赵勇，林忠钦，王皓. 重型锻造操作机的操作性能分析[J].机械工程学报，2010, 46(11): 69-75.Zhao Y, Lin Z Q, Wang H. Manipulation performance analysis of heavy manipulators [J]. Journal of Mechanical Engineering, 2010, 46(11): 69-75.
［9］杨晋，何琪功，同新星. 摆杆式操作机钳杆平升降缓冲刚度与阻尼研究[J]. 振动与冲击，2013, 32(9): 105-109.Yang J, He Q G, Tong X X. Buffering stiffness and damping in vertical lifting and dropping movements of the clamping-bar of an oscillating-bar forging manipulator [J]. Journal of Vibration and Shock, 2013, 32(9):105-109.
［10］许允斗，赵永生. 3种锻造操作机主运动机构受力比较分析[J]. 机械设计，2012, 29(7): 38-42.Xu Y D, Zhao Y S. Force comparative analysis of three mechanisms of forging manipulator [J]. Journal of Machine Design, 2012, 29(7): 38-42.
［11］许允斗,姚建涛,赵永生. 锻造操作机提升机构设计方法[J].机械工程学报，2012, 48(5): 28-33.Xu Y D, Yao J T, Zhao Y S. Design of analysis of manipulators lifting mechanism [J]. Journal of Mechanical Engineering, 2012, 48(5): 28-33.
［12］陈柏金，徐明昊，张红颖. 液压锻造操作机大车行走机构的位置控制系统[J]. 华中科技大学学报:自然科学版，2011, 39(8): 6-9. Chen B J, Xu M H, Zhang H Y. Position control system for hydraulic forging manipulator cart movement mechanism [J]. Journal of Huazhong University of Science and Technology: Natural Science Edition, 2011, 39(8): 6-9.
［13］徐明，胡国良，傅新.锻造操作机液压缓冲系统建模与仿真研究[J]. 机床与液压，2015, 43(11): 137-139.Xu M, Hu G L, Fu X. Modeling and simulation of hydraulic buff system of forging manipulator [J]. Machine Tool & Hydraulics, 2015, 43(11): 137-139.
［14］童幸，高峰，张勇. 操作机主运动机构的解耦性研究[J]. 机械工程学报，2010, 46(11): 14-20.Tong X, Gao F, Zhang Y. Research on decoupling performance of major-motion mechanism for forging manipulators [J]. Journal of Mechanical Engineering, 2010, 46(11): 14-20.
［15］李刚，刘德时. 锻压操作机大范围顺应运动的动力学行为分析[J]. 机械工程学报，2010, 46(11): 21-28.Li G, Liu D S. Dynamic behavior of the forging manipulator under large amplitude compliance motion [J]. Journal of Mechanical Engineering, 2010, 46(11): 21-28.
［16］李刚，宋三灵，张凯. 基于ADAMS 的重载操作机的动力学仿真[J]. 中国工程机械学报，2010, 8(3): 264-268.Li G, Song S L, Zhang K. ADAMS-based dynamical simulation on heavy-duty manipulators [J]. Chinese Journal of Construction Machinery, 2010, 8(3): 264-268.
［17］许允斗，姚建涛，赵永生. 一种典型DDS锻造操作机运动学分析[J].机械工程学报，2012, 48(3): 50-56.Xu Y D, Yao J T, Zhao Y S. Kinematic analysis of a typical DDS forging manipulator [J]. Journal of Mechanical Engineering, 2012, 48(3):50-56.
［18］Staicu S. Dynamics of the 6-6 Stewart parallel manipulator [J]. Robotics & Computer Integrated Manufacturing, 2011, 27 (1): 212-220.
［19］蒋莉，黄学庆，朱琳,等. 5000 mm轧机组合式机架拉杆最优预紧力研究[J]. 塑性工程学报，2016, 23(2): 49-55.Jang L, Huang X Q, Zhu L, et al. Optimal preload of 5000 mm sectional rolling mill housing [J]. Journal of Plasticity Engeering, 2016, 23(2): 49-55.
［20］刘光明,陈曦,黄小洋,等. 四辊轧机轴承载荷分布及辊系弹性变形[J].塑性工程学报,2016,23(1): 73-78.Liu G M, Chen X, Huang X Y. Analysis of bearing load distribution of roll system for four high strip mill [J]. Journal of Plasticity Engeering, 2016,23(1): 73-78.

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