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                                                    數控機床的組成系統
                                                    作者:    發布于:2018-07-30 10:06:11    文字:【】【】【
                                                        數控機床是常見的一個類型,在這樣安陽機床廠家將為大家介紹它常見的組成結構。

                                                        數控機床的種類很多,但是任何一種數控機床都主要由數控系統、伺服系統和機床主體三大部分以及輔助控制系統等組成。

                                                        1.數控系統

                                                        數控系統是數控機床的核心,是數控機床的“指揮系統”,其主要作用是對輸入的零件加工程序進行數字運算和邏輯運算,然后向伺服系統發出控制信號。現代數控系統通常是帶有專門系統軟件的計算機系統,開放式數控系統就是PC機配以數控系統軟件而構成的。

                                                        2.伺服系統

                                                        伺服系統(也稱驅動系統)是數控機床的執行機構,由驅動和執行兩大部分組成,它包括位置控制單元、速度控制單元、執行電動機和測量反饋單元等部分,主要用于實現數控機床的進給伺服控制和主軸伺服控制。它接受數控系統發出的各種指令信息,經功率放大后,嚴格按照指令信息的要求控制機床運動部件的進給速度、方向和位移。目前數控機床的伺服系統中,常用的位移執行機構有步進電動機、電液馬達、直流伺服電動機和交流伺服電動機,其中,后兩者均帶有光電編碼器等位置測量元件。一般來說,數控機床的伺服系統,要求有好的快速響應和靈敏而準確的跟蹤指令功能。
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