摘要
为了解决单伺服输入机械压力机工作机构存在的运动学性能指标与动力学设计目标相互制约耦合问题,设计了一种双伺服输入非对称工作机构,并对其曲柄存在条件和工作空间进行了分析。基于闭环矢量法和达朗伯原理,分别对该工作机构进行了运动学和动力学分析,并给出了动力学计算程序框图。在给定设计指标、结构尺度和输入运动的条件下,对该工作机构进行了案例计算。计算结果表明,双伺服输入非对称工作机构不仅具有足够的滑块行程、良好的低速冲压特性,而且具有较高的机械利益,证明其对滑块最大行程与工作机构机械利益具有良好的解耦效果。
To solve the problem that the kinematics performance index and dynamic design goals of working mechanism for mechanical servo press with single servo-input restrict each other’s coupling,an asymmetrical working mechanism with two servo-input was designed,and the existence conditions of crank and working space were analyzed.Based on the closed-loop vector method and Darumber’s principle,the kinematics and dynamic analysis for the working mechanism were carried out,and the flow chart of dynamic calculation was given.With the given design criteria,structural dimensions and input motions,the case calculation for the working mechanism was carried out.The calculation results show that the asymmetrical working mechanism with two servo-input not only has enough slide stroke and good lowspeed punching characteristics,but also has high mechanical advantage,which verifies that it has good decoupling effect on the maximum slide stroke and mechanical advantage of working mechanism.
作者
胡建国
孙友松
章争荣
HU Jian-guo;SUN You-song;ZHANG Zheng-rong(School of Intelligent Manufacturing,Shunde Polytechnic,Foshan 528333,China;School of Materials and Energy,Guangdong University of Technology,Cuangzhou 510090,China)
出处
《塑性工程学报》
CAS
CSCD
北大核心
2020年第10期221-227,共7页
Journal of Plasticity Engineering
基金
广东省教育厅高校科研项目(2019GKTSCX134)。
关键词
伺服机械压力机
非对称工作机构
双伺服输入
解耦
mechanical servo press
asymmetrical working mechanism
two servo-input
decouple
