【摘要】 在冲压机构上定义坐标系,对冲压机构的运动学进行分析,推导出冲压机构滑块的位移、速度及加速度公式.导槽轮廓设计选择n阶贝塞尔曲线,采取优化方法得出冲压机构连杆及驱动杆的最佳尺寸.结合具体实例,在三维建模软件SolidWorks中构建冲压机构实体模型.采用ADAMS软件对其进行运动仿真,得到滑块的运动特性曲线.同时,与传统冲压机构的仿真结果进行对比分析.仿真结果显示:单自由度冲压机构滑块速度和加速度(每个周期滑块大约位于0.3~0.7s的位置处)比传统冲压机构平稳,能够很好地满足深冲压模具的要求.更多还原

【Abstract】 The coordinate system is defined on the stamping mechanism,whose kinematics is analyzed to obtain the formulas of displacement,speed and acceleration speed.The n-order Bessel curve is selected for contour design of its guide groove,and an optimization method is used to obtain the best size of the stamping connecting rod and drive rod.In combination with concrete examples,the modeling of stamping mechanism is established using three-dimensional modeling software of SolidWorks.ADAMS software is used to conduct the motion simulation to obtain movement characteristic curve of sliding blocks.Compared to the traditional simulation,the obtained simulation results show that the speed and acceleration speed of stamping mechanism unidirectional sliding blocks(the sliding block in each cycle lies about the location of 0.3-0.7s)are steadier than traditional stamping mechanism,which can fulfill the requirements for deep stamping mould.更多还原