石墨电极镗孔专机机械系统设计

北华大学学士学位论文摘要石墨电极是电弧炉炼钢或其他电冶金行业的重要导电材料，随着电弧炉炼钢和其他电冶金行业的发展，石墨电极生产已经成为国民经济中不可缺少的部门之一，在国家历次发布的技术发展政策中均被列为重点发展内容。本文主要讨论石墨电极镗孔专机机械系统设计，主要包括机床床身结构的设计，托料架的设计，夹具及夹紧机构的设计。通过GSK96数控系统和PLC实现专机的自动控制。石墨电极接头生产采用数控加工，其优点是加工质量稳定、可靠加工精度高、具有高度柔性、生产率高、改善劳动条件、利于生产管理，减轻工作人员压力，降低生产成本，提高经济效益。关键词：石墨电极；夹紧机构；夹具；GSK96北华大学学士学位论文AbstractGraphiteelectrodeisanimportantconductivematerialfortheelectricarcfurnacesteel-makingorotherelectricmetallurgicalindustry.Withthedevelopmentoftheelectricarcfurnacesteelmakingandotherelectricmetallurgicalindustry,theproductionofgraphiteelectrodeshasbecomeanindispensableoneofthesectorsinthenationaleconomy,andwasclassifiedaskeydevelopmentofcontenteachtimeinourcountry'stechnologydevelopmentpoliciesinthepast.Withgraphiteelectrodeboringplanemechanicalsystemdesignwerediscussedinthispaper,mainlyincludingthedesignofthemachinetoollathebedstructure,rackdesign,designoffixtureandclampingmechanism.ThroughGSK96andPLCdigitalcontrolsystemtorealizeautomaticcontrol.Graphiteelectrodejointproductionadoptsnumericalcontrolprocessing,itsadvantageisthatmachiningqualityisstable,reliable,highprecision,highlyflexible,highproductivity,improveworkingconditions,conducivetoproductionmanagement,reducethestaffpressure,reducetheproductioncost,improvetheeconomicbenefit.Keywords：Graphiteelectrode；Clampingmechanism；Fixture；GSK96北华大学学士学位论文I目录第一章绪论.........................................................................................................................11.1研究的目的及意义.................................................................................................11.2国内外发展及状况.................................................................................................11.3课题研究内容分析.................................................................................................21.4课题研究的主要内容.............................................................................................21.5本章小结.................................................................................................................3第二章系统总体方案设计.................................................................................................42.1技术要求.................................................................................................................42.1.1石墨电极接头参数.......................................................................................42.1.2机床的技术要求...........................................................................................42.2机床控制方式.........................................................................................................52.3镗孔专机机床结构设计.........................................................................................52.4镗孔专机运动方案确定.........................................................................................52.5镗孔专机夹紧系统运动方案设计.........................................................................62.6本章小结.................................................................................................................6第三章主传动设计.............................................................................................................73.1主轴电机的选择.....................................................................................................73.1.1主轴电机的功率计算...................................................................................73.2滚子链的设计.........................................................................................................83.2.1链传动的优缺点...........................................................................................83.2.2滚子链传动的设计计算...............................................................................93.3减速器的选择.......................................................................................................103.3.1减速器的作用.............................................................................................103.3.2减速器的分类.............................................................................................103.3.3镗孔专机减速器的选择.............................................................................103.4主传动轴的设计计算与校核...............................................................................113.4.1主轴基本尺寸的确定.................................................................................113.4.2主轴强度校核.............................................................................................123.4.3主轴刚度校核.............................................................................................133.5键的选择与校核计算...........................................................................................133.5.1键连接的功能及分类.................................................................................143.5.2键的选择.....................................................................................................14北华大学学士学位论文II3.5.3键的校核.....................................................................................................143.6轴承的选择...........................................................................................................153.