1760-CBL-PM02

1760-CBL-PM02

1760-CBL-PM02

1760-CBL-PM02

（3）高性能的伺服电动机（简称伺服电机）：用于高效和复杂型面加工的数控机床，伺服系统将经常处于频繁的启动和制动过程中。要求电机的输出力矩与转动惯量的比值大，以产生足够大的加速或制动力矩。要求伺服电机在低速时有足够大的输出力矩且运转平稳，以便在与机械运动部分连接中尽量减少中间环节。

（4）宽调速范围的速度调节系统，即速度伺服系统：从系统的控制结构看，数控机床的位置闭环系统可看作是位置调节为外环、速度调节为内环的双闭环自动控制系统，其内部的实际工作过程是把位置控制输入转换成相应的速度给定信号后，再通过调速系统驱动伺服电机，实现实际位移。数控机床的主运动要求调速性能也比较高，因此要求伺服系统为高性能的宽调速系统。

二、伺服系统的分类

伺服系统按其驱动元件划分，有步进式伺服系统、直流电动机（简称直流电机）伺服系统、交流电动机（简称交流电机）伺服系统。按控制方式划分，有开环伺服系统、闭环伺服系统和半闭环伺服系统等，实际上数控系统也分成开环、闭环和半闭环3种类型，就是与伺服系统这3种方式相关。

1、开环系统

《联系人；欧先生》
《座机：0592-5709825》
《传真：0592-5917519》
《24小时热线：18030229053微信同步》
《QQ  ：2479261344》
《QQ邮箱：2479261344@qq》

开环系统，它主要由驱动电路，执行元件和机床3大部分组成。常用的执行元件是步进电机，通常称以步进电机作为执行元件的开环系统为步进式伺服系统，在这种系统中，如果是大功率驱动时，用步进电机作为执行元件。驱动电路的主要任务是将指令脉冲转化为驱动执行元件所需的信号。

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