工艺-加工涡轮盘榫槽的卧式拉床夹具设计—毕业设计.docVIP

工艺-加工涡轮盘榫槽的卧式拉床夹具设计 摘 要 本文主要是通过分析航空发动机上的涡轮盘榫槽的结构特点，加工工艺等情况，确定设计方案，完成了加工涡轮盘榫槽的卧式拉床夹具的设计。 此夹具主要用于拉涡轮盘上均布的47个枞树型的榫槽，由于本工序中对榫槽工作面距榫槽中心的距离以及47个榫槽的累记均布很小，并且榫槽的拉削加工工位较多，所以在此夹具的设计过程中，选用一端平面和短圆柱作为定位基准，着重对定位装置和分度装置进行了详细系统地设计，采用体积小、转动灵活、操作方便、分度精度较高的端齿盘分度装置，为了能够减轻劳动强度，提高劳动生产率，用液压机构作为分度装置的动力系统。对夹具上各装置作了合理、正确的布置，尽量减小了夹具的体积。简述了该夹具的使用和调整方法，并综合分析了提高枞树型榫槽表面粗糙度的方法。 关键词 涡轮盘榫槽 定位误差 端齿盘式分度盘 Abstract This article mainly is through the analysis aircraft engine on turbine disk key way unique feature, situations and so on processing craft, determined the design proposal, has completed the processing turbine disk key way horizontal-type broaching machine tongs design. This tongs mainly uses in on the broachingturbine disks the even cloth 47 fir trees key way, because in this working procedure is apart from the key way center to the key way working surface the distance as well as 47 key ways records the even cloth to be very small tiredly, and the key way broaching processes the location to be many, as soon as therefore in this tongs design process, selects holds straight the surface and the short column took the localization datum, emphatically carried on to the positioning device and the spacing device systematically has designed in detail, uses the volume slightly, the rotation nimble, the ease of operation, the indexing precision high end tooth plate spacing device, in order to could reduce the labor intensity, enhanced the labor productivity, took the spacing device with the hydraulic gearDynamic system. Each installment has made reasonably, the correct arrangement to the tongs on, reduced the tongs volume as far as possible. Has summarized this tongs use and the adjustment method, and the generalized analysis enhanced the fir tree key way surface roughness the method. Key word fir tree key way position error end tooth disc type graduated disc 目 录 摘 要…………………………………………………………………………… I Abstract……………………………………………………………………… II 第1章 绪 论…………………………………………………………………