立式加工中心直线、回转工作台设计

摘要

本文主要设计立式加工中心直线、回转工作台，工作台承担纵向X 和横向Y轴两个方向的移动及一个绕Z轴的转动。设计内容包括：

1.总体结构方案的拟定。确定了工作台结构，方案拟定为纵向、横向两个方向移动的直线工作台，在直线移动工作台的T型槽中固定一个可拆卸夹具式数控回转工作台。

2.部件概述。这一部分详细描述了在工作台设计过程中所用到的几个典型部件，如伺服进给系统、工作台、导轨，陈述选用这几个部件的原因和对它们的基本要求。

3.结构力学的设计计算。结合给定的主要参数对伺服进给系统和回转工作台进行选择计算，得到必需的几何参数，基本确定工作台的结构尺寸。

4.工作台装配图与零件图的绘制。清楚地表示工作台及其组成部分的连接、装配关系和其中主要零件结构、大小及技术要求。

关键词：加工中心，工作台，伺服进给系统，回转工作台。

Abstract

In this paper,It mainly designs the moving working table and NC rotary table of vertical machining centre.The tables can move along X-axis and Y-axis also can rotate around Z-axis. what's this pater content is as follows:

1.Draft the overall scheme of the structure of the tables.the moving working table moves along X-axis and Y-axis is drawn up,of which in the T-typle groove the NC rotary table is fixed which can be removed and fixed easily like a jig.

2.Descripe the typical components of vertical machining center.In this part, the components used in the design, such as servo feed system、tables and guide rails,are descriped respectively why choose them,and the require-ments for them.

3.Design and calculate structural e the given main parameters to select and compute the components to get other indispensable parameters,then identify the physical demension of the tables

4.Draw assembly drawings and part drawings.Express the connection the tables and their components、assembly relations，also the structures and the sizes of the main components、technical requirements, clearly.

Key words: Machining Center, Working Table, Servo Feed System，Rotary Working Table

目录

摘要.................................................................................................................... I Abstract II

目录................................................................................................................. III 第一章引言 ........................................................................ 错误！未定义书签。

1.1 课题的背景和意义 .................................................... 错误！未定义书签。

1.2 加工中心的基本组成、分类及结构特点 .................. 错误！未定义书签。

1.3 设计方案的预期目标 ................................................ 错误！未定义书签。

1.4 设计方案的可行性分析............................................. 错误！未定义书签。第二章加工中心工作台的主要部件 ...................................... 错误！未定义书签。

2.1 加工中心伺服进给系统............................................. 错误！未定义书签。

2.2 伺服驱动装置............................................................ 错误！未定义书签。

2.3 滚珠丝杠螺母副结构 ................................................ 错误！未定义书签。

2.3.1 滚珠丝杠副特点 ··········································错误！未定义书签。

2.3.2 滚珠循环方式··············································错误！未定义书签。

2.3.3 轴向间隙的调整和预紧方法 ························错误！未定义书签。

2.3.4 滚珠丝杠的安装 ··········································错误！未定义书签。

2.3.5 滚珠丝杠螺母的计算和选用 ························错误！未定义书签。

2.4 伺服电动机与丝杠的连接......................................... 错误！未定义书签。

2.5 回转工作台 ............................................................... 错误！未定义书签。

2.6 加工中心本体设计 .................................................... 错误！未定义书签。

2.6.1 支承件的基本要求·······································错误！未定义书签。

2.6.2 导轨的设计··················································错误！未定义书签。第三章加工中心的工作台和伺服进给的设计 ....................... 错误！未定义书签。

3.1 工作台的主要参数及结构......................................... 错误！未定义书签。

3.1.1 主要参数的确定 ··········································错误！未定义书签。

3.1.2 工作台质量及工作台承重初估·····················错误！未定义书签。

3.1.3 切削力估算··················································错误！未定义书签。

3.2 纵向伺服进给系统与直线工作台的设计 .................. 错误！未定义书签。