CK6140数控车床X向进给机构的设计

论文题目：CK6140数控车床X向进给机构的设计专业班级：_________________________学生姓名：_________________________指导教师：_________________________2013年06月12胡斌孙长青数控101CK6140数控车床X向进给机构的设计胡斌沈阳工程学院沈阳工程学院毕业设计（论文）I摘要在数控机床中，进给伺服系统是数控装置和机床的中间联接环节，是数控系统的重要组成部分。通常设计进给伺服系统时必须满足一定的要求，才能保证进给系统的定位精度和静态、动态性能，从而确保机床的加工精确度。但由于现在加工难度和精度的提高，因而达不到相应的加工质量。所以，本文对原有的普通车床进行了改造。在设计中采用安川公司的数控及伺服电机，通过滚珠丝杠来传递动力。由于整个机构需要安装在车床的拖板上，在结构上必须紧凑，因此采用一端固定一端游动的安装方式，经过认真的分析，仔细的计算，这种支称方式完全合理。电机与丝杠之间采用同步带与同步轮来传递动力，降速增扭是传动精准，控制快捷可靠，增加扭矩之后完全可以达到设计要求。关键词：同步带；同步轮；滚珠丝杠；伺服电机；CK6140数控车床X向进给设计IIAbstractFeedservosystemisalinkbetweendigital-controlleddeviceandmachinetool.Itisanimportantpartofdigital-controlledsystems.Whenfeedservosystemisdesigned,itmustsatisfythedesigningrequirements,thenitcaninsurethepositioningprecisionanddynamicalandstaticstatecharactersoffeedservosystem.Thus,itcaninsuremachiningprecisionofamachiningtool.sofallshortofcorrespondencemachiningquality.Forasmuch,wedependoninherefoundation,numericalcorrespondenceameliorate.IndesignprocesswhatweadoptisthenumberoftheAnchuanthecompanyofSiemenstocontrolsystemandservoelectricalengineerings,passingtorollthebeadsilktodeliverdynamically.becausewholeorganizationdemandinstallsinlatherdraggingalongplank,ontheconstructionmusttightlypacked,thereforeadoptoncarryingfixedlyoncarryingtovisitthedynamicgearingmethod,passbyhardofanalysis,carefulcalculating,thiskindofacceptsthewaycompletereasonable.Theelectricalengineeringtakeswithanadoptionsynchronouslytodeliverthemotivewiththesynchronousround,decliningtoincreasetotwisttomakespreadtomovesoonprecise,controlfastanddependable,enlargeaftertwistingthecanattainthedesignrequestcompletely.Keywords:synchronizationannulus;synchronizationcincture;thebeadsilk;Anchuanthecompa沈阳工程学院毕业设计（论文）III目录中文摘要................................................................................................................................IAbstract................................................................................................................................II第一章绪论...................................................................................................................................11.1数控技术简介.......................................................................................................................11.1.1数控机床的产生....................................................................................................................11.1.2数控机床的发展....................................................................................................................11.1.3数控车床的用途....................................................................................................................21.1.4数控车床的组成....................................................................................................................21.2问题的提出.............................................................................................................................4第二章传动系统的总体设计.....................................................................................................5第三章滚珠丝杠副的设计.........................................................................................................63.1确定滚珠丝杠副的导程............................................................................................................63.2.2最大载荷Fmax.....................................................................................................................73.2.3滚珠丝杠副的当量转速nm及当量载荷Fm............................................................................83.3确定预期额定动载荷...............................................................................................................93.3.1按滚珠丝杠副的预期运行距离（千米）计算：..................................................................93.3.2有预加负荷的滚珠丝杠副还需按最大轴向负荷Fmax计算；............................................103.4确定允许的最小螺纹底径d2m...............................................................................................113.5确定滚珠丝杠副规格代号.....................................................................................................123.6确定滚珠丝杠副预紧力........................................................................................................133.7确定滚珠丝杠副支承所用的轴承规格型号..............................................................................13CK6140数控车床X向进给设计IV3.8轴承的简化计算....................................................................................................................143.9滚珠丝杠副工作图设计........................................................................................................143.9.1滚珠丝杠副的螺纹长度...................................................................................................153.9.2固定支承与游动支承距离................................................................................................153.9.3丝杠全长........................................................................................................................153.9.4行程起点离固定支承距离................................................................................................153.10滚珠丝杠副的安全使用......