薄板定尺机构的设计毕业论文.doc

武汉工业学院毕业设计论文第1页共29页内容摘要武钢辉宝材料有限公司是国内武钢辉宝第一家大规模连续生产冷轧卷带金属复合材料的工厂，其剪切生产线设备主要由开卷机、校平机、纵剪机、活套坑、张力机构、剪板机等设备组成。在开卷校平剪切生产线上，定尺机构精确送出冷板的设定剪切长度是设计定尺机构的核心工作，也是衡量开卷校平剪切生产线设备技术性能的重要指标。本设计的任务是根据所提供的参数，并结合生产现场的实际情况，设计出一套经济实用的定尺机构。要求：1.机构传动平稳，送料准确。2.冷板与送料辊之间不能产生相对移动。关键词：冷板剪切线、开卷机、校平机、剪板机、定尺机构武汉工业学院毕业设计论文第2页共29页AbstractTheWuHansteelmaterialco.ltdisthefirstdomesticfactorywhichhasalarge-scaletoproducethecoldrollmatelcontinuesly.ThesheartosliceProductionlineismadeoftheopenningmachine,downcuttingmachine,schoolshearsmachine,pitmachine,tensionorganizationmachine,triggermachineetc.Attheopeningshearandtriggerproducedline,thefixrulermachineprecisicelygivethelengthofcoldplank,whichisthecoretaskofdesignthefixrulermachine,andisalsotheimportantguidelinetoweighthetechniquecapabilityoftheopeningsheartriggerproducedlineequipment.Theassignmentofthedesignisthroughtheprovidedparameter,andcombinewiththepracticecomplexionofmanufacturedspottoworkoutasuitofthefixrulermachine,whichischeapandapplied.Required.:1.Themachinedrivesplaciditilyanddeliversmaterialprecisely.2.Betweenthecoldplankandthedeliverroller,thereisnorelativemotion.Keywords:thetangentofthecoldplankshears,theopenningmachine,theshearingmachine,thetrigger,fixrulermachine武汉工业学院毕业设计论文第3页共29页目录第一章前言···········································································(5)第二章开卷校平生产线的概述··················································(8)2.1国内金属卷板剪切生产线发展现状······································(8)2.2开卷校平生产线的组成和工作原理······································(9)2.2.1开卷校平剪切生产线的设备组成········································(9)2.2.2薄板定尺机构的工作原理················································(10)2.3薄板定尺机构的设计任务···············································(10)2.3.1课题背景·······································································(11)2.3.2设计参数·······································································(11)2.3.3设计任务·······································································(11)第三章薄板定尺机构的设计及计算··········································(12)3.1轴的设计······································································(12)3.1.1主轴的受力分析····························································(12)3.1.2最小轴径的设计计算······················································(12)3.1.3轴的校核······································································(14)3.2横梁和立柱部件·····························································(14)3.3气缸的选择···································································(15)3.4齿轮齿条的设计·····························································(16)第四章标准件的选择和校核···················································(21)4.1轴承的选择和校核··························································(21)4.1.1轴承类型的选择和尺寸···················································(21)4.1.2校核轴承的寿命····························································(21)4.2弹簧的选择···································································(22)4.3标准联接件···································································(23)4.3.1螺栓联接······································································(23)4.3.2螺钉联接······································································(23)4.3.3紧定螺钉联接·······························································(23)第五章总结·········································································(24)附：主要参考文献·································································(25)武汉工业学院毕业设计论文第4页共29页第一章前言在设计之前，我想对国内外机械制造的现状做个粗略介绍。世界范围内，韩国已制定机械工业十大发展计划，包括：机械园区、尖端生产系统、设计技术、研究技术革新中心、高速/智能加工、机械零件设计、纺织机械研究、模具技术综合支援中心、电子商务系统等。预期到2010年韩国机械产业的自给率达到80%，2005年则定为机械工业贸易平衡的第一年。美国企业通过网络企业对企业（B2B）的服务有效整合供应商与客户的采购和存货系统；大型汽车公司（通用、福特、戴姆勒/克莱斯勒）和航天航空公司（波音、洛克希德）都通过B2B在全球范围内与相关体系同步设计开发。机床业的制程管理、远端监控、故障排除和售后服务日渐普及。日本机械工业协会已制定2010至2025年机床技术革新战略，重点在强调网络连接加工型态、信息化/智能化对应技术、远距离诊断/控制、三维电脑辅助设计/电脑辅助制造（3DCAD/CAM）、环境调和、省能源、微小化、高精度、高速化对应技术等。日本虽经历十年不景气，但机床厂对未来十年市场仍乐观。各厂纷纷加强信息科技技术及网络应用、环境保护、人材培养、经营弹性、顾客满意度、收益能力等。我国机械行业的发展历史悠久，目前面临的问题更是严峻：从世界范围看，机械行业的发展是与其他技术的发展密切相关的。在工业革命时期，蒸汽机的应用使人类从繁重的体力劳动中解放出来，机械设备也开始大规模地使用；在电动机出现以后，机械设备开始普遍使用电动机作动力，加工精度大幅度提高；计算机出现后，机械设备与其结合普遍实现了数字化控制，已经可进行镜面磨削，最高的加工精度已达10纳米（1纳米=10-9米），目前正在向纳米级加工发展。反过来看，机械行业的发展又促进了其他行业的发展，即出现了互相促进共同发展的局面。从国内的发展过程来看，机械行业的发展充满艰辛，一波三折。鸦片战争后，帝国主义列强在我国取得了沿海和内河的航行权，为了适应航运业发展的需要，外国资本先后在广州、上海、厦门、福建等地建立了20多家船舶修理厂。1845年英国人柯拜在广州设立的柯拜船舶厂，是我国领土上的第一家机械工厂。1866年建立的上海发昌钢铁机器厂是中国民族资本家开办的第一家民用机械工厂。我国的机械工业诞生于半封建半殖民地时期，一开始就带有明显的半封建半殖民地烙印。自此以后直到解放前的七八十年，外国资本基本上垄断了中国的机械工业，民族资本经营的机械工业虽有发展，但其规模远不如外资企业，而且由于社会制度的束缚，始终没有形成自己的机器制造业。解放后我国机械工业在曲折中前进，在大起大落中发展，逐步形成了自己的制造业体系。从1949到1952年，是机械工业恢复与改造阶段。从1953到1957年是打基础阶段。在此期间共发展新产品三千多种，国民经济建设所需设备的国内自给率已达