I题目：齿轮变速箱体加工工艺及镗孔夹具设计摘要 镗孔卡具是根据工件的工艺而制定的，采用六点定位原理,在一台加工中心上加工中心上进行多道工序的处理。随着制造业的发展，卡具的需求量愈发增多。相比传统卡具，新型对应其零件的卡具拥有超高的身产率，同时拥有加工精度高、成本低廉等一系列优点。汽车变速箱体是汽车上常见和应用广泛的机械零件，为了将单件生产的变速箱体转化为批量生产，本文为此设计了对应零件镗孔工序的专用卡具，并详细阐述了零件的设计和镗孔卡具的设计方法。本文在创作的过程中首先先兑变速箱各个零部件的加工工艺、加工特点、技术要求等内容进行了分析，并且了解了设计定位夹紧的要求，绘制了加工工序图。然后，本文通过查阅大量文献资料和标准，对齿轮变速箱体进行了详细的设计，计算了切削用量、绘制了零件图和毛坯图。最后联系零件和对应的加工中心，设计出对应的镗孔卡具。保证零件批量生产、节省材料和时间，以达到最初的设计目的。关键词 变速箱体箱体制造 机械制造基础 设计镗孔卡具IITitle: Gearbox Body Processing Technology and Boring Fixture DesignAbstractBoring fixture is based on the workpiece technology and development, the use of six-point positioning principle, in a machining center on the machining center for multi-channel processing. With the development of manufacturing industry, the demand for fixtures is increasing. Compared to the traditional fixture, the new fixture corresponding to its parts has a high rate of production, at the same time have a high precision machining, low cost and a series of advantages.Automobile transmission body is a common and widely used mechanical parts in automobiles. In order to transform a single-piece transmission body into mass production, this paper designed a special fixture for the boring process of the part, and elaborated on the part Design and design of boring fixtures.First of all, to the transmission body parts processing characteristics, machining accuracy, technical requirements, positioning clamping situa...
