毕业设计（论文）立式数控铣床主传动系统设计.pdfVIP

摘要 本次毕业设计的题目是立式数控铳床主传动系统设计。设计的目的是通过对立式 铳床的主传动系统进行设计，从而全面的、系统的进行设计方法和研究方法的基本训 练，这次设计采用了传统的机床设计的步骤，设计很大部分是利用一些经验公式进行 计算，并用类比法来选取合适的方案。 设计内容主 包括五个大的部分：（1）机床的主 技术参数的确定；（2）传动方案 及传动系统图的拟定；（3）齿轮的强度校核和结构设计；（4）传动轴的设计与校核；（5） 花键与轴承的选择与计算。 其中机床的主 技术参数主 包括主参数，基本尺寸和其他技术参数，由国家机 床相关的参数标准的确定，选取合适的设计参数；传动方案及传动系统图的拟定主 包括确定机床传动系统的转速图和传动系统图，确定齿轮的齿数，滑移齿轮的轴向布 置；齿轮结构设计主 是使确定的零件搭配合理，布局美观，并在一定程度上可以节 约成本；传动轴，花键与轴承的选择与计算主 就是校核轴的刚度和强度，花键联接部 分的侧挤压力计算，轴承的计算预期寿命等。 关键词：转速图；传动系统图；滑移齿轮；强度。 Abstract The subject of this undergraduate design is CNC vertical milling machine main drive system . Via the main drive system of the vertical milling machine, we can basically train system design and research methods , in this one we use the traditional steps of machine design, mostly some empirical formula for calculation, and select the appropriate option via the analogy. Design feature include five major parts: (a the machine * s main technical parameters identified; (2 transmission and drive system diagram program development; (3 structural design and the intensity checking of gear; (4 Shaft design and Verification; (5 splines and bearings choice and calculation. The main technical parameters of machine tool includes the main parameters of the basic dimensions and other technical parameters, through the country machine parameters related to the standard setting, selecting appropriate design parameters; The selecting of transmission programs and the map of transmission main machine drive system including the identification of the map and the transmission speed chart Gear teeth set, splinesz axial layout; Gear design is mainly determined by the mixture of components reasonable, beautiful layout, and to some extent, it could be economical; The choice and calculation of shafts, splines and bearings are mainly checking