精密播种机单体的虚拟制造和运动仿真

针对长期以来精密播种机的研制存在生产周期长、成本高,而且当产品制出后,经常会出现部件、零部件之间相互干涉而无法装配等缺点,介绍了应用Pro/E软件进行精密播种机单体虚拟制造和运动仿真的过程。首先对建立的精密播种机单体零件三维模型进行约束和连接装配,形成精密播种机单体整机装配,然后进行运动仿真,展示在虚拟环境下的运动特性。最后对仿真结果进行处理,测试精密播种机单体的运动性能和检测干涉情况,从而对错误进行修改。结果表明:该方法提高了精密播种机设计的准确性和效率,代替了物理样机的制造和试验,大大降低了成本。

Virtual manufacturing and motion simulation of precision planter unit

Facing the long-standing problems existing in the development of the precision planter such as the prolonged production period,the high production cost and the difficulty in the final assembly because of the interference between the interacted parts,a process of the virtual manufacturing and motion simulation of the precision planter unit was introduced applying the Pro/Engineer software.The final assembly of the planter unit was formed by restricting and connecting its parts 3-D models.Its motion simulation was performed to demonstrate the movement characteristics in the virtual environment.The simulation results were processed to check the movement characteristics of the planter and to correct the possible interferences.The results showed that the proposed process improves the accuracy and efficiency of the precision planter design and deduces the development cost by using the virtual space instead of the physical space.