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针对长期以来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UG软件进行播种机单 体虚拟制造和运动仿真的过程。 首先对建立的播种机单体零件三维模型进行约束和连接 装配，形成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。
关键词：农业工程； 播种机单体； 虚拟制造； 运动仿真
Facing the 1ong-standing prob1ems existing in the deve1opment of the precision p1anter such as the pro1onged production period, the high production cost and the dificu1ty in the fina1 asemb1y because of the interference betwen the interacted parts, a proces of the virtua1 manufacturing and motion simu1ation of the precision p1anter unit was introduced app1ying the ProIEngineer software.The fina1 asemb1y of the p1anter unit was formed by restricting and connecting its parts 3-D mode1s. Its motion simu1ation was performed to demonstrate the movement characteristics in the virtua1environment.The simu1ation resu1ts were procesed to check the movement characteristics of the p1anter and to corect the posib1e interferences.The resu1ts showed that the proposed proces improves the acuracy and eficiency of the precision p1anter design and deduces the deve1opment cost by using the virtua1 space instead of the physica1 space.
Keywords: Agricu1tura1engineering; Precision p1anterunit; Virtua1manufacturing; Motion simu1ation;
