摘 要

本次毕业设计的主要内容是小型涡轮的夹具设计。我将机械制造技术基础和其它课程的基本理论和方法结合起来，为了能够完成小型涡轮的夹具的设计任务，首先应该归纳发挥所学的知识，选取正确的设计方法。首先确立了涡轮的机械加工工艺过程。确立了正确的工艺设计内容，接下来应用正确的工艺计算方法，对具体工艺内容进行了合理的分析、设计、计算。本文主要涉及到工艺参数、切削力、切削功率、切削速度、定位误差、夹紧力。确立了对涡轮的加工工艺路线，以底面作为基准符合该零件的加工要求，该加工工艺方案满足粗基准选择的基本要，并且满足精基准选择的四项原则。本夹具为使用钻床加工的专用夹具，钻床专用夹具的特点是针对性强、布局紧凑、操纵简单、生产率高。在小型涡轮的夹具设计的具体设计中，夹具的设计满足小型涡轮的夹具设计的总体方案，保证零件加工的精度等基本要求，具有较高的生产效能和低的制造成本，具有优秀的构造工艺性。
 
关键词： 加工工艺； 专用夹具； 涡轮
 Abstract
  This graduation design main content is small turbine jig design. I will combine the basic theory and method of foundation of mechanical manufacturing technology and other courses, in order to be able to complete the design of small sized turbine fixture, first of all should induction play learned knowledge, the selection of the correct design method.Firstly, the machining process of the turbine is established.. The correct technological design content is established, and the correct technology calculation method is applied, and the reasonable analysis, design and calculation of the concrete technology are carried out.. This paper mainly involves the process parameters, cutting force, cutting power, cutting speed, positioning error and clamping force.. Established on the turbine machining line, to the bottom surface as a benchmark in line with the parts of the processing requirements, the processing program meet the benchmark crude selection of basic, and meet a fine selection of basis of the four principles. This jig for the use of special fixture, drilling machine tool, special fixture is targeted, compact layout, simple operation, high productivity. In the specific design of the small turbine of fixture design, fixture design meet the overall scheme of the fixture design of small turbine and ensure machining precision of the basic requirements and has high production efficiency and low manufacturing cost, has excellent structure of the process.
 
Key words:  Process technology;  Special fixture;  Turbine