摘要由于螺纹磨床磨削的精度要求越来越高，提升精密数控螺纹磨床的精度越来越重要。本文以提升精密数控螺纹磨床的整体性能为目标，着眼于提高加工精度和可靠性，对应于数控螺母磨床的直驱回转工作台进行设计和分析。68269

本文提出了一种小型高精数控直驱回转工作台的总体的设计方案，计算并选型了直接驱动电机，对应用于转台的轴承寿命进行了校核。设计了夹紧力可靠的液压夹紧装置，计算了夹紧装置的壁厚范围。为电机设计了冷却系统，经计算证明该系统能够有效散热。

 最后，为了保证转台面的精度，利用有限元法，对转台面运用ANSYS软件进行静刚度校核。

毕业论文关键词： 螺母磨床  直驱回转工作台  设计计算   有限元分析

毕业设计说明书（论文）外文摘要

Title     The Design of Minitype High Precision NC Rotary Table Based on Direct Driving                 

Abstract

Because of thread grinding machine grinding precision demand is higher and higher, improve the accuracy of precision CNC thread grinding machine is more and more to the more important. In this paper, in order to enhance the wholeness of precision CNC thread grinding machine for the goal, focus on improve the machining accuracy and reliability, corresponding to the direct drive nc nut grinding machine design and analysis of the rotary table.

Is proposed in this paper a kind of small, high precision numerical control design scheme of direct drive rotary table, puts forward the overall design scheme, calculation and selection of the motor, check of bearing life. Design of the clamping force and reliable hydraulic clamping device, clamping device, and calculate the wall thickness range. Designed for motor cooling system, calculation has proved that the system can bring effective calorific value.

Finally, in order to ensure the accuracy on the surface of the rotary table, using the finite element method (fem), the mesa of counter rotating static stiffness analysis using ANSYS software.

Keywords  Screw grinding machine ,Direct drive rotary table ,Design calculation,finite element analysis

目次

1 绪论 1

1.1 课题的研究意义和应用前景 1

1.2 国内外研究现状 3

1.3 本课题的主要研究内容 4

2  数控直驱回转工作台的设计与分析 4

2.1 设计要求与性能参数指标 4

2.1.1 设计要求 4

2.1.2 参数指标 4

2.1.3 工作原理 5

2.2 数控直驱回转工作台的总体机械结构设计 6

2.2.1设计原则 8

2.2.2机构设计 8

3  电机与轴承选型 12

3.1数控直驱回转工作台电机选型 12

3.1.1直接驱动电机 12

3.3.2电机选型 13

3.2数控直驱回转工作台轴承选型 15

3.2.1轴承类型选择 15

4  数控直驱回转工作台液压夹紧装置、冷却系统的设计