回转分度车夹具设计和装配工艺规划毕业设计论文.rar

回转分度车夹具设计和装配工艺规划毕业设计论文


摘  要
　　　随着现代计算机技术的高速发展，高新技术在现代设计中应用的越来越广泛，如CAD/CAM/CAE等计算机辅助设计方法在国际上应用越来越普遍。这些设计方法不但提高了设计速度，而且设计出来的产品更加可靠美观，并且可以节省大量的人力、物力，大大提高产品的竞争力。在生产实际当中，回转分度盘的应用非常广泛，它是机床中传递力与运动的重要部件。本文是针对数控机床的迅速发展，应用计算机辅助设计的方法设计一种气动斜楔式回转分度盘。
　　　本次设计中，采用三维CAD以及动态仿真分析等现代设计方法建立了回转分度盘的实体模型、完成结构装配及进行装配仿真，并对三爪动力回转分度盘的工作原理及其设计计算进行了分析。通过力的平衡方程,得出夹紧力与推拉力的关系。在设计过程中，首先对回转分度盘的原理方案进行了选定，根据原理进行回转分度盘的结构设计。然后根据主参数进行回转分度盘的力学分析，并对回转分度盘的精度进行了分析。最后，根据结构的设计进行了回转分度盘的装配工艺设计及仿真。
　　　装配工艺规划是产品装配设计的主要内容，是产品生产过程中一个极其重要的环节, 直接影响到产品的最终质量。因此在回转分度盘设计中，采用Solidworks软件，进行建模仿真，根据回转分度盘的结构装配制定出装配工艺。
　　　
关键词：回转分度盘；装配工艺；动态仿真；Solidworks
　　　
　　　
　　　
　　　

Rotary indexing fixture design and assembly process planning
Abstract
　　　With the rapid development of modern computer technology, high-tech applications in modern design more and more extensive computer-aided design methods such as CAD / CAM / CAE applications in the international arena is becoming increasingly common. These design methods not only improve the design speed, and design products more reliable and beautiful, and can save a lot of manpower, material, greatly improving the competitiveness of their products. In which the actual production, rotary indexing plate is widely used, it is an important component of the force and motion passed in the machine. This article is for the rapid development of CNC machine tools, the application of computer-aided design methods to design a pneumatic wedge rotary indexing plate.
     In this design, the use of 3D CAD, as well as dynamic simulation analysis of modern design methods to establish a solid model of the rotary indexing plate to complete the structural assembly and assembly simulation, and three-jaw power rotary indexing plate working principle and design calculations were analyzed. Through the force balance equation, draw the clamping force and the push pull relationship. In the design process, the first principle of rotary indexing plate program selected according to the principles of structural design of rotary indexing plate. And mechanical analysis of the main parameters of rotary indexing plate, and the accuracy of rotary indexing plate is analyzed. Finally, according to the design of the structure of a rotary indexing plate assembly process design and simulation.
    Assembly process planning is the main content of the product assembly design, is an extremely important link in the production process, a direct impact on the final quality of the product. Rotary indexing plate design using Solidworks software, modeling and simulation to develop a structural assembly of the rotary indexing plate assembly process.

Key Words: Rotary indexing;assembly process; Solidworks

目  录

1  绪论 1
1.1前言 1
1.2 夹具的概况 2
1.3国内外研究 3
1.4本文主要研究内容 5
2  回转分度盘形式的选择及原理的确定 6
2.1回转分度盘的性能确定 6
2.1.1回转分度盘结构设计原则 6
2.1.2回转分度盘性能及参数的确定 6
2.2 回转分度盘原理确定 7
3  回转分度盘方案设计 11
3.1设计工具的选择 11
3.1.1造型功能 11
3.1.2绘图功能 12
3.1.3装配功能 12
3.2回转分度盘方案的设计 12
4  回转分度盘主要零部件的结构设计 15
4.1传力装置零件的结构设计 15
4.1.1过渡盘的结构设计 15
4.1.2盘体的结构设计 16
4.1.3回转盘的结构设计 17
4.2定位、夹紧装置、平衡零件的结构设计 18
5  回转分度盘的计算分析 20
5.1夹紧力的分析与计算 20
5.1.1夹紧力的分析 20
5.1.2.切削力计算 20
5.1.3夹紧力计算 21
5.2回转分度盘的定位及精度分析 22
5.2.1工件的定位 22
5.2.2定位误差分析 23
5.2.3分度精度分析 23
6  回转分度盘的装配工艺设计与仿真 25
6.1装配的基本概念 25
6.2回转分度盘的装配 26
6.3回转分度盘的装配工艺规划 27
6.3.1回转分度盘装配流程 27
6.3.2装配工艺过程 27
6.4装配运动仿真 29
6.4.1装配仿真的概念 29
6.4.2产品装配仿真的实现 30
6.4.3装配后操作 30
6.5回转分度盘的运动演示 31
6.5.1动态爆炸视图 31
6.5.2回转分度盘运动演示 34
7  结论 36
参考文献 38
致 谢 40