PCB数控铣钻床结构设计论文.doc

摘 要 数控钻铣床同时包括铣床的功能和钻床的功能。它可以加工平面，曲面，螺纹空，盲空等。数控钻铣床是用电电脑来控制的机电一体化产品，两部分组成的一部分是机械部分，另一个部分是电器部分，机械部分是它的基础，机械部分包括传动部分，导向部分和执行等。电器部分包括控制与信息处理装置和检测与传感装置等。PCB数控轴钻铣床是一种机电一体化的产品，是专用于PCB加工的一轴一联动数控机床。 本文对PCB机床的整机系统结构、伺服进给机构、工作装置、机电匹配进行了讨论和分析，特别是对整机系统结构和伺服进给机构进行了详细的设计，主要包括机床动力参数、整机的结构布置、伺服系统的选择以及滚珠丝杆、滚动导轨、联轴器、滚动轴承、交流伺服电机、高速电主轴等关键零部件的选择和设计。： 数机床印刷电路板伺服系统 ABSTRACT CNC drilling and milling function of the milling machine and drilling machine. It can be processed plane, surface, thread empty, waited in vain for the blind. CNC drilling and milling machine computer to control the electricity mechatronic product, part of a two-part mechanical part, another part of the electrical part and mechanical part of it is based on the mechanical part of the driving part, guide part and implementation. The electrical part includes control and information processing device and the detection and sensing devices. PCB NC three-shaft drilling-milling machine tool is a kind of mechanical-electric integrative product and the one-shaft linkage NC appropriative print equipment based on the machining of PCB. The article discusses and analyzes the holistic system structure, servo feeding organ, working organ, NC organ and machinery electricity matching, and has carried out detailed designing and studying of holistic system and servo feeding system mainly including the estimation of driving parameter of the machine tool, the design of holistic structure layout, the selection of servo system, and the selection and proofing of key parts including ball bearing screw shaft, beeline oriented track, crosshead, ball bearing, AC servo electromotor, principal axis. Key words: CNC machine tool；PCB；servo system；Hardware circuit 目录 1绪 论 1 2机床总体设计 2 2.1 设计参数 2 2.2 总体布局 2 2.3 坐标系统的确定与机床外观 4 2.4 机械部分 4 3机械部分设计 6 3.1 滚珠丝杠副的选型 6 3.1.1 滚珠丝杆副的工作原理 6 3.1.2 滚珠丝杠副的特点 6 3.1.3 X轴传动机构的设计计算 7 3.1.4 Y轴传动机构的设计计算 9 3.2 导轨副的计算与选型 11 3.2.1 滑动导轨与滚动导轨的优缺点 11 3.2.2 X方向导轨的选型与计算 12 3.2.3 Y方向导轨的选型与计算 12 3.3 步进电机的选用 13 3.3.1 步进电机的概念 13 3.3