传动轴键槽的铣削加工.doc

摘 要 本设计从传动轴的设计和制造出发,并分析了传动轴上键槽的加工工艺和容易引起误差的原因,对键槽的加工过程进行了分析和设计,又研究了对于加工键槽所用到的工装夹具,最后设计出了能够快速定位和加工的工装夹具,使得传动轴键槽的铣削加工能够快速准确的进行。其中设计的重点在于键槽加工所用到的工装夹具。 铣床用途广泛,并主要用于加工平面（水平面、垂直面）、沟槽（键槽、T形槽、燕尾槽等）、分齿零件（ HYPERLINK /view/25045.htm \t _blank 齿轮、花键轴、链轮、螺旋形表面（螺纹、螺旋槽）及各种曲面。 其中键槽铣削加工是铣床的重要应用方面,各种的键槽基本都是使用铣床来进行加工。传动轴是一个高转速、少支承的旋转体，因此它的动平衡是至关重要的。传动轴的键槽铣削加工对铣床和其加工工艺都有着严格的要求。因此在对键槽的加工过程中,工装夹具就显得至关重要。工装夹具也是零件在加工过程中所用到的重要工具,一个好的工装夹具能提高加工的精度和效率。经过分析在这里使用了V型块。 通过这次设计我认识到了理论和实际的区别,理论的东西只有结合了实际才能发挥作用。在设计过程中我也收获了不少知识,并且梳理了以前所学的知识。 关键词: 铣床,键槽,工装夹具 ABSTRACT The design of the transmission shaft design and manufacturing, and the analysis of the transmission shaft keyway processing technology and is easy to cause the error reasons of keyway, the processing process is analyzed and design, and studies the keyway is used by the fixture, finally designs can be rapid positioning and processing technology fixture, allowing the drive shaft keyway milling can quickly and accurately. The design point is used for machining keyway of the fixture. Milling machine a wide range of uses, and is mainly used for machining plane ( horizontal, vertical plane ), trench ( keyway, T groove, a dovetail groove etc.), gear parts ( gear, spline shaft, chain wheel, a spiral surface ( screw, a spiral groove) and various surface. The keyway milling machining is the important application of milling bed the keyway, various basic use of milling machine for processing. The drive shaft is a high speed, less supported rotating body, so its dynamic balance is crucial. Shaft keyway milling processing on the milling machine and its processing process has strict requirements. Therefore in the process of keyway, fixture is particularly important. Fixture is also in part machining process used by the important tool, a good fixture can improve the precision and efficiency of processing . After the analysis here used a V block. Through this design I realized the theory and practical difference, theoreti