毕业设计（论文）-机械手手前后伸缩机构设计（全套图纸）.docVIP

PAGE \* MERGEFORMAT IV摘 要“机械手”（Mechanical Hand）：多数是指附属于主机、程序固定的自动抓取、操作装置，如自动线、自动线的上、下料，加工中心的自动换刀的自动化装置。实现了自动化生产方式，达到了减少劳动力、节约费用、提高工作效率、增加企业经济效益之目的。本文设计的机械手手臂前后伸缩机构由电动机、丝杠螺母副、导杆、手臂、连接板等构成。设计过程中，首先，调查了机械手研究现况，在此基础上根据设计技术要求选定了驱动机构及伸缩机构方案；接着，根据选定的结构方案对各主要零部件进行了设计与校核；最后，通过AutoCAD绘图软件绘制了该机械手手臂前后伸缩机构的装配图及主要零部件图。通过本次设计，巩固了大学所学专业知识，如：机械原理、机械设计、材料力学、公差与互换性理论、机械制图等；掌握了普通机械产品的设计方法并能够熟练使用AutoCAD软件，本次机械手臂的设计代表了设计的一般过程，对今后的设计工作有一定的参考价值。关键词：机械手；手臂；伸缩；设计AbstractRobot (mechanical hand): most of the refers to attach belongs to the host program fixed automatic crawl, operation device, such as automatic assembly line, automatic line, cutting, machining center automatically change knife automatic device. The realization of automatic production, to reduce labor, save costs, improve work efficiency, increase the economic efficiency of the purpose of the enterprise.In this paper, the manipulator and the front and back telescopic mechanism of the manipulator is composed of a motor, a lead screw nut pair, a guide rod, an arm, a connecting plate, and the like. In the design process, firstly, to investigate the status of the research of manipulator, based on the driving mechanism and the telescopic mechanism scheme is selected according to design requirements; then, based on the selected structure of the main parts were designed and checked. Finally, through the AutoCAD drawing software drawn before and after the manipulator arm telescopic mechanism assembly and major parts of the map.Through the design, the consolidation of the University of the professional knowledge, such as: mechanical principles, mechanical design, mechanics of materials, tolerance and interchangeability theories, mechanical drawing, and master the design method of general machinery products and be able to skillfully use AutoCAD software, the design of the mechanical arm represents the general process of design, have certain reference value for the design work in the future.Key words: manipulator; arm; expansion; design