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1、U型钣金成型机设计U型钣金冷弯成型机I摘要本设计的U型钣金成型机是用冷弯技术达成折弯的目的,说到底就是对冷弯过程的研究分析。冷弯成型是一种高效、清洁、低成本、稳定、节能、节材的加工工艺,对于这一钟加工工艺的叫法有许多种,冷弯成型、冷弯型钢、滚轧成型、滚压成型、冷轧成型等。通过对加工产品的材料、厚度、折弯半径等多个方面的分析,制定合理的折弯道次以及折弯角度,快而精的加工出合格的U型钣金。计算好钣金的总宽度,制定合理的轧辊宽度,通过公式计算,得出合理的折弯道次数和每个道次所折弯的角度度数。根据折弯角度计算每个道次所需要的折弯工作功率,进而选择工作电机,再设计链轮
2、减速以及选择链条型号。根据技术要求分析冲压的步骤和位置,计算冲裁压力,选择液压缸型号。链轮传动机构负责减速和力的传递,包括选型的电动机;板料成型机构负责钣金的移动和折弯,包括送料辊和工作辊,以及定位轧辊的轴承座、轴承等;液压冲裁机构负责对钣金的冲裁和剪断,主要为选型的液压缸和刀具。该设计过程需要综合运用所学到的知识和技能,在设计中能够提高实际问题的分析能力和解决能力,能够拓展知识领域,增加了学习新知识的能力。关键词:冷弯成型,轧辊,链传动U型钣金冷弯成型机IIABSTRACTThedesignoftheUtypeofsheetmetalformingmach
3、ineistoachievethepurposeofbendingbendingtechnology,inthefinalanalysisistheresearchandanalysisofthecoldbendingprocess.Coldrollformingisakindofhighefficient,clean,theprocessingtechnologyoflowcost,stability,energysaving,materialsaving,forthenamesoftheclockprocessingtechnologyhasmanyki
4、nds,coldrollforming,cold-formedsteel,rollingrollingforming,rollforming,coldrollforming.Throughtheanalysisofthematerials,thickness,bendingradiusandotheraspectsoftheprocessingproducts,makeareasonablebendtimeandbendingangle,fastandpreciseprocessingofqualifiedUtypesheetmetal.Calculatet
5、hetotalwidthofthesheetmetal,todevelopareasonablerollwidth,throughthecalculationoftheformula,anddrawareasonablenumberofbendsandtheangleofeachroadbendingangle.Accordingtothebendingangletocalculatetherequiredbendingworkpower,andthenselecttheworkingmotor,andthendesignthechainwheeldecel
6、erationaswellasthechoiceofchainmodel.Accordingtothetechnicalrequirementsofthestampingprocessandthelocationofthecalculationofpunchingpressure,selectthehydrauliccylindermodel.Chainwheeltransmissionmechanismisresponsibleforslowingdownandforcetransfer,includingtheselectionofthemotor;sh
7、eetmetalformingmechanismresponsibleformobileandbendingofsheetmetal,includingfeedingrollandworkroll,androllpositioningbearingseat,bearing;hydraulicdiecuttingmechanismresponsibleforsheetmetalpunchingandshearing,mainlyfortheselectionofhydrauliccylinderandthetool.Thedesignprocessneedst
8、obeintegratedwiththeknowle