X5032铣床进给系统数控毕业设计.docVIP

摘要 本次毕业设计主要研究了X5032铣床进给系统数控改造,首先是在图书馆和网上查阅了大量的资料,对X5032铣床有了一个大概的了解,记录了相关的数据,也对要改造的部分改造后的尺寸数据有了一个大致的评估。再是在改造设计的过程中，通过大量的资料，初定了部分参数，然后根据这些参数计算选用滚珠丝杠副和步进电机，而减速机构只进行了简单的设计。最后在画图时，借助了CAD等软件工具，并且手绘了一张齿轮零件图。 X5032铣床进给系统改造前与改造后差别不是很大，主要改造的部分就是替换滚珠丝杠和步进电机。滚珠丝杠部分根据动载荷选取，然后再进行校核，包括刚度和压杆稳定性校核；步进电机是根据初步计算的转矩选取，然后在进行转矩校核，解决频率问题。至于减速齿轮，考虑到步进电机传动的转矩较小，故可以不进行减速齿轮和轴的校核。 通过进行进给系统的数控改造，使我较深入的了解了铣床进给系统的结构，以及数控方面的相关知识，也确实感受到了对普通机床进行数控改造带来的巨大经济效益。 Abstract The graduation design mainly studies numerical control reform about feeding system of milling machine X5032.At first，I look up a large amount of material from the library and the Internet and it let me jeneral understanding to milling machine X5032. I write down some data of the machine and also take a rough evaluation of the size and data about the part which will be reformed to.At second,I Preliminarily determine some parameters in the reconstruction design process,then choose the ball screw assembly and stepping motor according to these parameters. And the reduction gear institutions made only simple design.At last,I not noly drawing some figure by the software tools such as CAD,but also hand draw a A1 drawings about reduction gear. There is not a very big difference between transformation of the former and after the transformation of the X5032 milling machine feeding system,and the main part of the reform is to replace the ball screw and stepping motor. The selection of ball screw according to the dynamic load, and then check out, including stiffness and push rod stability checking. Stepping motor is according to the torque of preliminary calculation selection, then check the torque and solving the problem about frequency. As for the reduction gear, considering drive torque of stepping motor is small, so checking for the reduction gear and axis is unnecessary. Through CNC transform of feeding system, make me a deep understanding of the structure about milling machine feeding system, also the knowledge about numerical control aspec