| 滚齿机位置测量中的“假”信号与滤波 |
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| 引用本文： | 张季秋,殷红彦.滚齿机位置测量中的“假”信号与滤波[J].兰州理工大学学报,1997(3). |
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| 作者姓名： | 张季秋 殷红彦 |
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| 作者单位： | 甘肃省机械工业总公司(张季秋)，甘肃工业大学机电工程系(殷红彦) |
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| 基金项目： | 国家“八五”计划攻关项目 |
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| 摘 要： | 分析了滚齿机低速滚切过程中出现瞬时负转的原因，指出这一现象存在的必然性．在此基础上提出了一种防假滤波器，并和ＣＮＣ系统中的位置测量电路结合在一起，精确、无时滞地滤掉主轴反馈脉冲经判向、四倍频电路处理后输出的与指令同向脉冲中的“假”信号，使真实的正向脉冲能够１∶１地通过滤波器送入下一控制单元．
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| 关 键 词： | CNC 滚齿机 控制 位置测量 滤波 |
False signal and its filtering in position measurement on hobbing |
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| Zhang Jiqiu.False signal and its filtering in position measurement on hobbing[J].Journal of Lanzhou University of Technology,1997(3). |
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| Authors: | Zhang Jiqiu |
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| Abstract: | The reason of instantaneous reversal revolving happened with gear hobbing at lower speed is analyzed and it is pointed out that the existence of this phenomenon is inevitable. Then an anti-aliasing filter is advanced which, when operates together with position measurement circuit of CNC system, can precisely and without delay eliminate the false signal among forward pulses obtained by identification and quadrupling frenquence circuit. The filter,thus, ensures the true forward pulses to pass though and be sent to the next control unit with a signal ratio of unity. |
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| Keywords: | CNC hobbing control position measurement filtering |
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