CK立式数控车床X向进给传动系统设计.doc

CK514立式数控车床X向进给传动系统设计 摘要 随着世界科技进步和机床工业的发展，数控机床作为机床工业的主流产品，已成为实现装备制造业现代化的关键设备，是国防军工装备发展的战略物资。数控机床的拥有量及其性能水平的高低,是衡量一个国家综合实力的重要标志，所以发展数控机床的水平是现时代赋予我们机械类人员的使命。 本课题是关于CK514立式数控车床X向进给传动系统的设计，设计内容包括：确定系统的负载，确定系统脉冲当量，运动部件惯量计算，空载起动及切削力矩计算，确定伺服电机，绘制机械部分装配图及零件工作图等。设计从传动方案的确定，传动结构的选择，以及传动部件的选型等等方面逐一开展。进给传动伺服系统可分为三种：开环、半闭环和闭环伺服系统。通过比较，按照使用要求选用半闭环伺服系统。机械传动结构选用同步齿形带连接伺服电动机和丝杠，这种结构简单，传动扭矩大，并且传动误差小，经济性能好，符合设计要求。传动部件的选择包括导轨类型的选择及其使用要求，滚珠丝杠螺母副选型和伺服电动机的选择。 关键词: 数控车床 进给系统 导轨 丝杠 X-axis feeding system design of CK514 CNC lathe Abstract Along with the world advance in technology and machine tool industrys development, the numerically-controlled machine tool takes the machine tool industry the mainstream product, has become realizes the equipment manufacturing industry modernization key equipment, is the national defense war industry equips the development the strategic resources. CNC machine tools capacity and performance capabilitys height, is weighs a national synthesis strength the important symbol, therefore the development numerically-controlled machine tools level is the present time entrusts with us the machinery personnels mission. This topic is about the CK514 vertical numerical control lathe X feed transmission systems design, the design content includes: Definite systems load, definite system pulse equivalent, moving part inertia computation, idling starting and cutting moment of force machine computation, definite servo electrical machinery, plan machine part assembly drawing and components shop drawing and so on. The design from the transmission plans determination, the transmission structures choice, as well as transmission parts shaping and so on aspects develops one by one. To feed transmission server may divide into three kinds: Split-ring, half closed loop and closed loop server. Through the comparison, selects the semi-closure according to the operation requirements to lie in wait from all sides the clothing system. The mechanical drive st