毕业设计---水轮机叶片加工工艺及工装设计

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1、 毕业设计（论文）毕业设计（论文） 题 目 ZDJP502-LH-120 型水轮机叶片加工工艺及工装设计 2012 年 5 月 31 日 2 摘 要 水轮机转轮是水轮发电机组的核心部件,起着将水流能转化为机械能的重要作用, 它由上冠、 下环和叶片构成。 它的质量好坏直接影响水轮机的效率和寿命。 而在转轮中, 叶片直接起着将水流能转化为机械能的作用,承受较大的作用力，是水轮机能量转换的 关键部件，也是最难加工的零件，目前多轴联动数控加工是解决该类大型雕塑曲面零件 最有效的加工方法。多轴联动数控加工编程则是实现其高精度和高效率加工的最重要环 节。 本文介绍 ZDJP502-LH-120型水轮机叶片

2、三轴联动数控加工中涉及到转轮叶片三维 造型、UG 数控程序生成、毛胚制造、夹具设计、定位基准的选择等关键技术。通过对 这些技术的链接和研究， 实现了对 ZDJP502-LH-120型水轮机叶片的三轴联动数控加工。 数控加工的主要关键技术:叶片的曲面造型、刀具和机床运动的三维轨迹计算和仿真、 三轴加工的后置数据处理、叶片曲面的三维检测、刀具选择和叶片的快速装夹找正。 关键词：关键词：三维造型；毛胚；基准；数控程序 3 ABSTRACT Turbine runner hydro-generating unit is the core component, plays will flow into

3、mechanical energy to the important role, from the champions league, it under a ring and leaves. Its a direct impact on the quality of the water turbine efficiency and life. And in the wheel, the vane plays will directly into mechanical energy can flow of the role, bear the larger force, is the key c

4、omponents of the turbine energy conversion, and the hardest parts processing, at present the multiaxial linkage is to solve the numerical control processing of large sculpture surface parts of the most effective processing method. Multi-axis nc programming linkage is to realize its high accuracy and

5、 efficiency is the most important link of the processing. This paper introduces ZDJP502-LH-120 type turbine blade with three axis in the numerical control processing involves the vane of 3 d modeling, UG nc program generation, blank casts manufacturing, clamp design, the choice of the locating datum

6、 such key technology. Through analyzing the technology of links and research, the paper realize ZDJP502-LH-120 type turbine blades of the three axis linkage nc machining. Numerical control processing key technology of leaf surface modeling, cutting tool and machine tool of the movement 3 d trajectory calculation and simulation, three axis machining rear of data processing, blade surface of three-dimensional testing, tools selection and the leaves of the clamping find is fast. Keywords: T