摘 要随着国家的发展，社会的进步。老式的钻床，铣床已经不能满足现有的加工需求。不错，在原有技术落后的情况下，根据现有的技术，必须进行改造，研制出新型的数控机床-- 钻销中心。 新型的机床必须具有钻孔，铣削等功能，自动化的程度也要大大地提高，才能满足当代制造业的需求。 在本文中，主要进行新型机床的主轴系统的设计。在这种设计里,主轴调速机构采用交流电动机进行调速;主轴的传动方式采用带传动加齿轮来完成;高刚度的轴承是也是设计里的要求，半闭环伺服进给系统是 z 方向上的进给，自动换刀在主轴的内部完成。简而言之，结合本次设计的思路，经过对主轴改造的初步设想，能满足高的加工精度、高效的工作方式。关键词 : 数控技术 ; 钻削中心 ; 主轴系统;老式钻床；自动化IIIABSTRACTWith the advancement of technology and the development of CNC machining technology, old-fashioned drilling machines and milling machines have been unable to meet the existing processing needs. The famous great Newton once said: "The reason why I stand tall is because I stand on the shoulders of giants." Yes, under the condition that the original technology is backward, according to the existing technology, it is necessary to carry out transformation and develop a new type of CNC machine tool--drilling and pinning center. The new machine tools must have functions such as drilling, milling, etc., and the degree of automation should be greatly improved to meet the needs of the contemporary manufacturing industry. In this paper, the design of the spindle system of the new machine tool is mainly carried out. In this design, the spindle speed governing mechanism adopts AC motor for speed regulation; the spindle drive mode is completed by belt drive plus gear; the automatic tool change function is used inside the spindle; the vertical feed of the spindle adopts semi-closed loop servo To the system; the spindle bearing has a bearing assembly tha...
