蔬菜嫁接机夹苗机械手机构设计及仿真

Design and Simulation of Seedling Manipulator for Vegetable Grafting Machine

为了提高生产率和生产质量,设计了以黄瓜为穗木、南瓜为砧木、贴接法为嫁接方法的嫁接机。夹苗机械手是嫁接机的关键部件之一,其结构和性能参数直接影响嫁接机的工作速率和嫁接成功率。依据对嫁接过程中机械手的动作分析和秧苗的物理机械特性,设计了夹苗机械手的机构,并用SolidWorks软件建模,用COSMOSMotion进行了动态仿真分析,绘制了内外指的夹苗点轨迹,研究结果表明设计合理、可行。

Cucumber is one of the most important vegetables in people＇s living. In northern areas, the production of cucumber are mainly based on grafted seedlings on the stock of pumpkin. The grafting machine was designed, with cucumber as scion and pumpkin as stock and approach grafting as operating method, to increase productivity and grafting quality. The seedling manipulator is one of the key parts of the grafting machine and its structure and performance parameters affect considerably the grafting rate and quality. In this paper the mechanism design of the seedling manipulator was introduced based on the motion analysis of the gripper in the grafting process and the physical and mechanical properties of the seedlings. The model of the manipulator was set up with SolidWorks and the dynamic simulation was carried out on the model with COSMOSMotion, and the paths of outer and inner fingers of the manipulator were illustrated. The results showed that the design was reasonable and practicable.