| 曲面零件外表面磨削加工全过程模拟与误差分析 |
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| 引用本文： | 张照煌,丁显,刘曼,甘长影,王建星.曲面零件外表面磨削加工全过程模拟与误差分析[J].应用基础与工程科学学报,2011(Z1):219-229. |
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| 作者姓名： | 张照煌 丁显 刘曼 甘长影 王建星 |
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| 作者单位： | 华北电力大学能源动力与机械工程学院;中国水利水电第二工程局有限公司工程管理部; |
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| 摘 要： | 基于MATLAB软件具体模拟了曲面工件外表面磨削加工的全过程并进行了加工误差的分析.通过建立两套坐标系,以最短加工时间为原则建立数学模型,分析工件外母线方程为抛物线的曲面加工过程,合理预留磨削进刀量并选取了加工基准,采用圆柱体砂轮,利用插补原理中的逐点比较法,把所要加工的工件外表面等分为19285个微元环,利用坐标变换原理,求出外母线上每一个微元点运动之后的坐标位置,依次模拟出了实际加工轮廓线;并模拟出了每Δt=0.15 s时刻在x轴方向上的进给量和在y轴上的进给量的曲线,以及绕转轴的旋转角度,计算出了在每个Δt伺服周期内的单个微元的位移量,由步进电机的脉冲当量得到每个微元所需的步进电机的脉冲个数.自主划分时间段,并计算了三组步进电机各自应发出的脉冲数和脉冲数在该时段的分布.最后分析了此加工工序选取微元时的舍入误差、插补误差和脉冲当量分配不均引起的累计误差.
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| 关 键 词： | 最短加工时间 插补 伺服周期 累积误差 |
Simulation of the Entire Process of Grinding the Outer Surface of Surface Parts and Error Analysis |
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| ZHANG Zhaohuang,DING Xian,LIU Man,GAN Changying,WANG Jianxing.Simulation of the Entire Process of Grinding the Outer Surface of Surface Parts and Error Analysis[J].Journal of Basic Science and Engineering,2011(Z1):219-229. |
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| Authors: | ZHANG Zhaohuang DING Xian LIU Man GAN Changying WANG Jianxing |
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| Institution: | ZHANG Zhaohuang1,DING Xian1,LIU Man1,GAN Changying2,WANG Jianxing1 (1.School of Energy,Power and Mechanical Engineering,North China Electric Power University,Beijing 102206,China,2.Engineering Mangement Department Sinohydro Bureau 2 Co.Itd,Beijing 100120,China) |
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| Abstract: | Based on Matlab a simulation has been conducted on the entire process of grinding the outer surface of a specific piece of surface part,with errors analyzed.Through the establishment of two sets of coordinates,within the shortest processing time,a mathematical model is built to analyze the process of grinding surface parts whose parabolic equation is the outer bus',with a reasonable amount of feed grinding set aside and the processing benchmark selected.By adopting the cylinder-type grinding wheel and the p... |
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| Keywords: | The shortest processing time Interpolation Servo Cycle Accumulated error |
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