To meet the current farmers need of automatically selecting jujubes,reducing labour,improving the production efficiency,In view of present insufficiency and the existence question of automatically choosing the jujubes machine,the article designs one kind of new design structure,which solved the problems of selecting dates,scratching,conveying belt stressed non-uniform.The example showed that the structure had not only satisfied the above-mentioned problems,and had simple structure,good effects.It has important practical significance.

本文根据脉冲增量插补的特点,推导出了椭圆弧插补的判别函数,包括了一般圆的插补算法,提出了运用矢量法解决了起点、终点、半径确定圆心的问题,简化了计算过程,使计算值有了明确的取舍.在C++Builder开发环境下,编制椭圆的插补计算程序,完成椭圆的数控加工仿真.