Φ70整体叶轮三维造型及五坐标数控加工+CAD图纸
时间:2018-04-12 21:17 来源:毕业论文 作者:毕业论文 点击:次
| 摘要：整体叶轮通常被用于透平机械设备中，是一类具有代表性且造型比较规范的复杂薄壁类零件。由于其形状特征比较明显，工作型面的设计涉及到空气动力学、流体力学等多个综合学科，因此曲面加工手段、加工精度和加工表面质量对其工作性能都有很大的影响。本文针对整体叶轮的特点，通过结合五轴高速铣削加工技术，对整体叶轮的造型，加工工艺，CAM编程以及后置处理均进行了有关研究。首先在三文设计软件UG的环境下，对整体叶轮的轮毂与叶片分别进行了三文建模，着重分析了叶片曲面的建模方法，为后续的五轴高速铣削加工做好准备工作。然后对五轴数控高速铣削加工技术进行了深入地分析，从而规划出整体叶轮五轴高速铣削加工的工艺方案。最后在UG的CAM功能模块下对整体叶轮的流道面和叶片曲面分别进行CAM编程，同时在UG中对整体叶轮的加工过程进行了反复地仿真验证，另外对实际数控加工中的后置处理进行了一定的分析，为整体叶轮的实际数控加工奠定了良好的基础。21030 毕业论文关键词： 整体叶轮造型；五轴数控加工 Φ70integral impeller and 3D modeling of five axis NC machining Abstract: Integrated impellers are a kind of representative parts with relatively normal shape of the complicated thin-walled which is usually used for turbine machinery equipment. The design of the working surface relates to several comprehensive subjects such as aerodynamics, hydrodynamics and so on. So the manufacture means,manufacture precision and manufacture quality of the surface all have large effect on the capability parameters. Synthetically considering the characteristic of integrated impeller and the feature of 5-axis High Speed Cutting technology, and the correlation analysis of integrated impeller CAM programming and postprocessor. First, in three dimensional design software UG environment, modeling the integrated impeller's blade and hub respectively, emphasizing analysis the method of modeling the blade surface, for subsequent 5-axis High Speed Cutting ready to work. Then analyze the 5-axis CNC High Speed Cutting technology thoroughly, Accordingly, planning a integrated impeller 5-axis High Speed Cutting process scheme. Finally in UG CAM function module of integrated impeller blade surface and runner surface respectively, while check and simulation integrated impeller's manufacturing process repeatedly, And analyze the postprocessor for the actual CNC machining. Make a good foundation for the actual CNC machining of integrated impeller. KeyWords: Integrated impeller; 5-axis CNC machining; 目录 2014届本科生毕业设计（论文） 1 1绪论 1 1.1 选题背景 1 1.2 课题意义 1 2国内外研究现状 3 2.1 五轴联动数控机床 3 2.1.1 五轴联动数控机床国外研究现状 4 2.1.2 五轴联动数控机床国内研究现状 5 2.2 高速铣削加工技术 5 2.2.1 高速铣削加工技术国外研究现状 7 2.2.2 高速铣削加工技术国内研究现状 8 2.3 CAD/CAM 8 2.3.1 CAD/CAM国外研究现状 9 2.3.2 CAD/CAM国内研究现状 10 3整体叶轮实体造型 11 3.1 概述 11 3.2 整体叶轮轮毂的创建 13 3.3 整体叶轮叶片的分析 13 3.4 整体叶轮叶片的创建 13 3.5 整体叶轮的创建 14 4 整体叶轮五轴加工工艺分析与规划 24 4.1 概述 24 4.2 整体叶轮的技术要求 24 (责任编辑：qin) |