一种轮毂压铸件搬运机器人设计与仿真
Design and simulation of a handling robot forwheel-hub die casting
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摘要: 为提高轮毂压铸件生产线和压铸岛的智能制造水平, 满足轮毂压铸件生产过程中多尺寸、高效率、高质量的要求, 采用虚拟样机技术设计了一种轮毂压铸件搬运机器人。利用D-H参数建模法理论建立了搬运机器人坐标系, 对其进行了正向和逆向运动学分析; 通过MATLAB机器人工具箱Robotics Toolbox, 基于蒙特卡洛法对搬运机器人进行工作空间分析; 采用五次多项式插值法对搬运机器人关节空间轨迹规划进行规划, 获得其各关节运动过程中的角位移、角速度和角加速度; 仿真结果显示, 所设计的搬运机器人结构合理, 能够实现所需功能, 为下一步样机生产线布局、工艺参数联合规划提供了必要的理论参考。Abstract: In order to improve the intelligent manufacturing level of the hub die casting production line and die casting island, and to solve the requirements of multi size, high efficiency and high quality in the production process of wheel-hub die casting, a kind of wheel-hub die casting handling robot was designed by using virtual prototype technology. The coordinate system of the handling robot is established using the theory of D-H parameter modeling method, and the forward and reverse kinematics are analyzed. Analyze the working space of the handling robot based on the Monte Carlo method through the Robotics Toolbox of MATLAB. The joint space trajectory planning of the transport robot is carried out by using the quintic polynomial interpolation method, and the angular displacement, angular velocity and angular acceleration of each joint are obtained. The simulation results show that the designed robot is reasonable in structure and can realize the required functions, which provides necessary theoretical reference for the layout of the next prototype production line and the joint planning of process parameters.