数控外圆磨床加工中心设计（含三维SW模型+CAD图纸+说明书）

数控外圆磨床结构设计

摘要

随着磨削技术的日益成熟，对磨削装备的要求越来越严格，数控外圆磨床的发展显得愈发重要。我国目前高精度及超高精度磨床需求日益增长，但大部分高端磨床都赖于进口，因此，从磨床结构设计入手，提高磨床的静动态性能和加工精度及效率不失为一个有效的措施。本文主要确定了数控外圆磨床的结构设计，其中主要开展工作如下：
（1）机床整体布局及驱动、传动方式的选择，以及纵向、横向、圆周进给运动方案等。其中，纵向往复进给采用传统液压驱动，横向进给采用直线电机驱动，圆周进给采用伺服电机，砂轮采用电主轴驱动。
（2）确定其主要零部件的基本尺寸，基于SolidWorks绘制机床结构三维图并绘制工程图。
（3）学习有限元分析软件ANSYS，通过有限元分析整机特性，提出结构修改建议。

关键词：数控外圆磨床，电主轴，直线电机，有限元分析

Structure Design of NC Cylindrical Grinder

Abstract

With the increasing maturity of grinding technology, the requirements for grinding equipment are becoming more and more strict, and the development of CNC cylindrical grinding machines is becoming more and more important. At present, the demand for high-precision and ultra-high-precision grinding machines is increasing in China, but most high-end grinding machines rely on imports. Therefore, starting from the structural design of the grinding machine, improving the static and dynamic performance of the grinding machine and the processing accuracy and efficiency are an effective measure. This paper mainly determines the structural design of the CNC cylindrical grinding machine, the main work is as follows:
(1)The overall layout of the machine tool and the selection of the drive and transmission mode, as well as the longitudinal, lateral and circumferential feed motion schemes. Among them, the longitudinal reciprocating feed adopts the traditional hydraulic drive, the lateral feed is driven by a linear motor, the circumferential feed is driven by a servo motor, and the grinding wheel is driven by an electric spindle.
(2)Determine the basic dimensions of the main components, draw a 3D map of the machine structure based on SolidWorks and draw the drawing.
(3)Learning the finite element analysis software ANSYS, through the finite element analysis of the whole machine characteristics, proposed structural modification.

Key words: CNC cylindrical grinding machine, electric spindle, linear motor, finite element analysis

目录
第1章绪论1
1.1课题研究背景及意义1
1.2发展现状1
1.3课题主要研究内容2
第2章数控外圆磨床方案设计3
2.1总体设计思路及方案3
2.2主要零部件设计分析3
2.2.1床身结构设计4
2.2.2头架结构设计4
2.2.3尾架结构设计5
2.2.4工作台结构设计6
2.2.5砂轮架结构设计7
2.3本章小结9
第3章部分零部件的选型计算11
3.1设计要求11
3.2头架伺服电机的选型计算11
3.3伺服电机力矩校核12
3.4电主轴的选型计算13
3.5直线滑轨选型计算14
3.6直线电机的选型计算15
3.7本章小结17
第4章有限元分析及结构改进19
4.1有限元法及软件简介19
4.2模型简化19
4.3分析准备20
4.3.1模型导入20
4.3.2材料的选择及网格的划分20
4.3.3边界条件确定21
4.4方案分析结果对比21
4.5床身肋板布局分析22
4.6本章小结25
第5章总结与展望27
5.1总结27
5.2展望27
参考文献29
致谢31