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數控技術起(qi)源(yuan)于航空工業的需(xu)要，20世紀40年(nian)代后(hou)期，美國一家直升機公司(si)提出了。

數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)機(ji)(ji)(ji)床(chuang)(chuang)(chuang)的(de)(de)(de)(de)初始(shi)設想，1952年美國(guo)麻(ma)省理工(gong)(gong)學(xue)院研制(zhi)(zhi)出三坐標(biao)數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)銑(xian)床(chuang)(chuang)(chuang)。50年代(dai)中期這種(zhong)數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)銑(xian)床(chuang)(chuang)(chuang)已用于(yu)加(jia)工(gong)(gong)飛機(ji)(ji)(ji)零(ling)件(jian)。60年代(dai)，數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)系統和程序編(bian)制(zhi)(zhi)工(gong)(gong)作日益成熟和完善(shan)，數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)機(ji)(ji)(ji)床(chuang)(chuang)(chuang)已被用于(yu)各個工(gong)(gong)業部門，但(dan)航(hang)空(kong)航(hang)天工(gong)(gong)業始(shi)終是(shi)數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)機(ji)(ji)(ji)床(chuang)(chuang)(chuang)的(de)(de)(de)(de)一(yi)(yi)大用戶。一(yi)(yi)些(xie)大的(de)(de)(de)(de)航(hang)空(kong)工(gong)(gong)廠配有數(shu)(shu)(shu)百臺(tai)數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)機(ji)(ji)(ji)床(chuang)(chuang)(chuang)，其中以切削機(ji)(ji)(ji)床(chuang)(chuang)(chuang)為主。數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)加(jia)工(gong)(gong)的(de)(de)(de)(de)零(ling)件(jian)有飛機(ji)(ji)(ji)和火箭(jian)的(de)(de)(de)(de)整體壁板、大梁、蒙皮、隔框、螺旋(xuan)槳以及航(hang)空(kong)發(fa)動(dong)機(ji)(ji)(ji)的(de)(de)(de)(de)機(ji)(ji)(ji)匣、軸(zhou)、盤、葉片(pian)的(de)(de)(de)(de)模具型腔和液體火箭(jian)發(fa)動(dong)機(ji)(ji)(ji)燃燒室的(de)(de)(de)(de)特(te)型腔面等。數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)機(ji)(ji)(ji)床(chuang)(chuang)(chuang)發(fa)展的(de)(de)(de)(de)初期是(shi)以連續軌跡(ji)的(de)(de)(de)(de)數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)機(ji)(ji)(ji)床(chuang)(chuang)(chuang)為主，連續軌跡(ji)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)。連續軌跡(ji)控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)又稱輪廓控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)，要求刀具相對(dui)于(yu)零(ling)件(jian)按規定軌跡(ji)運動(dong)。以后又大力發(fa)展點(dian)(dian)(dian)位控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)數(shu)(shu)(shu)控(kong)(kong)(kong)(kong)(kong)(kong)機(ji)(ji)(ji)床(chuang)(chuang)(chuang)。點(dian)(dian)(dian)位控(kong)(kong)(kong)(kong)(kong)(kong)制(zhi)(zhi)是(shi)指刀具從某一(yi)(yi)點(dian)(dian)(dian)向(xiang)另一(yi)(yi)點(dian)(dian)(dian)移(yi)動(dong)，只要比較(jiao)終能準確(que)地到達(da)目標(biao)而不管(guan)移(yi)動(dong)路線如何。

CNC technology originated from the needs of the aviation industry. In the late 1940s, an American helicopter company proposed it.
The initial idea of CNC machine tool was developed by MIT in 1952. In the mid-1950s, this type of CNC milling machine was used to process aircraft parts. In the 1960s, CNC systems and programming became more mature and improved. CNC machine tools have been used in various industrial sectors, but the aerospace industry has always been a major user of CNC machine tools. Some large aviation factories are equipped with hundreds of CNC machine tools, including cutting machine tools. The parts of CNC machining include the overall wall plate, girder, skin, partition, Propeller of the aircraft and rocket, as well as the casing, shaft, disc, mold cavity of the blade, and the special cavity of the combustion chamber of the liquid rocket engine. The initial development of CNC machine tools is based on continuous trajectory of CNC machine tools, continuous trajectory control. Continuous trajectory control, also known as contour control, requires the tool to move relative to the prescribed trajectory of the part. Later, it vigorously developed point-controlled CNC machine tools. Point control refers to the tool moving from one point to another, as long as it can eventually reach the target accurately regardless of the moving route.