毕业设计（论文）--立式加工中心自动换刀装置说明书.doc

摘要 90年代以来，数控加工技术得到迅速的普及和发展。加工中心作为新时代数控机床的代表，已在机床领域广泛使用。自动换刀装置作为加工中心最重要的部分之一，它的发展也直接决定了加工中心的发展。本论文完成的是TH5640D型立式加工中心盘式刀库的传动设计、结构设计以及传动部分的动力设计。这种刀库在数控加工中心上应用非常广泛，其换刀过程简单，换刀时间短，定位精度高；总体结构简单、紧凑，动作准确可靠；维护方便，成本低。本刀库减速传动部分采用蜗轮蜗杆减速装置，此种设计方案可提高输出轴的传动平稳性能，即提高刀盘的运转平稳性。刀库传动装置中采用一调整套杯来消除蜗轮蜗杆的传动间隙。本刀库满载装刀20把，采用单环排列方式放置，按就近选刀原则选刀。本次设计中的机械手采用单臂双手式机械手，这种机械手的优点是可以同时完成插刀和拔刀动作，结构简单，换刀时间短。 关键词　立式加工中心；盘式刀库；机械手；自动换刀装置 Abstract Since the 1990s, NC machining technology has got rapid popularization and development. As a new era of machining center, NC machine tools are widely used in the fields of machine tools. As one of the most important part of machining center, the development of Automatic Tool Changer also directly determines the development of machining center. what finished in this paper is drive design, structural design and the power transmission parts design of disc tool magazine in TH5640D vertical machining center. This tool magazine is widely applied in NC machining center. And the process of changing tools is simple, short change time , high precision, simple and compact of structure, reliable, easy maintenanced and low cost. The transmission part of this tool magazine adopts gear reducer. The design of worm gearbox device can improve the stationarity of output shaft, namely, increasing the operation stability and smooth transmission properties of tool magazine.Transmission device of tool magazine adopts a adjusting sleeve to eliminate the transmission clearance of worm.This tool magazine can load 20 cutting tools which are arranged with monocylic and according to the principle of nearby to choose the right tool. The manipulator of this design is the manipulator with one arm and pair of hands.The advantage of this manipulator is that it can complete the action of inserting tool and pulling out the tool at the same time,simple structure and short change time. Keywords　Vertical machining center; Disc tool magazine; Manipulator; Automatic Tool Changer  目 录 摘要