4392 CA6140车床齿轮加工工艺与夹具设计.pdf

目目录录1.2.3.4.5.5.1引言.1课题背景.1车床齿轮特点.4齿轮加工机床和齿轮加工方法.5零件加工工艺设计.6选择毛坯的尺寸.65.1.1审查零件的工艺性.65.1.2主要技术要求.65.1.3加工表面的尺寸及要求.65.1.4零件的材料.75.25.35.45.55.65.76.6.16.26.36.46.5结论选择毛坯的形状、尺寸、公差.7定位基准的选择.7零件表面加工方法的选择.8制订工艺路线.8确定工序机械加工余量、工序尺寸及公差.13选择机床设备及工艺装备，.16填写工艺文件.16设计任务.16确定定位方案、选择定位元件.16夹紧机构的选择与设计.17对刀装置的选择.17夹具在机床上的定位与夹紧.17.18参考文献.19致谢.20毕业设计评价表毕业设计评价表指导教师意见签字：年月日评阅人意见签字：年月日答辩委员会意见主任委员签字：年月日院学术委员会意见院长签字：年月日毕业设计说明书中文摘要毕业设计说明书中文摘要CA6140CA6140车床齿轮加工工艺与夹具设计车床齿轮加工工艺与夹具设计摘要摘要 制造业是一个国家经济发展的重要支柱，其发展水平标志着该国家的经济实力、科技水平、生活水准和国防实力。而制造业的生产能力主要取决于制造装备机床的先进程度。进给变速系统设计是1500毛坯专用车床研制课题的一部分。车床进给系统由进给变速箱，溜板箱等组成。根据任务书要求，车床主轴的转速分为两个区，高速区和低速区。高速区转速介于60 r/min-160r/min；低速区速度的介于6r/min-16r/min。从电机1450 r/min的转速，降到6r/min的转速，减速比达到1：241。与主轴相匹配的进给量变化范围较大。这是本设计难点之一。设计者采用从主轴箱第三轴采取主轴转速信息，通过进给箱和溜板箱变速，得与车床所需相匹配的进给量，从而解决了这个问题。本着“经济，实用”的设计原则，本设计根据精车和粗车的不同要求，设计了两种不同的进给量。对各部分的设计及选用进行了详细的计算和论证，机构简单，布局紧凑，节约了材料，降低了成本，利于安装和维修，完成了设计任务。关键词关键词专用车床齿轮毛坯变速系统设计毕业设计说明书外文摘要毕业设计说明书外文摘要Design on processing of gear for CA6140 lath with the mainDesign on processing of gear for CA6140 lath with the mainprocess equipmentprocess equipmentAbstractAbstractThe manufacturing industry is a national economic development majorpillar,its level of development symbolizes this national economicpotentiality,the technical level,the level of living and the national defensestrength.But manufacturing industry productivity is mainly decided by themanufacture equipment-engine beds advanced degree.This design is 1500 the gear blank special-purpose lathe to feedspeed change system design.The lathe to feed system module by to feed gearbox,the apron and so on is composed.According to the project descriptionrequest,the lathe main axles rotational speed divides into two areas,highspeed area and low speed area.The high speed area rotational speed issituated between 60-160r/min;The low speed area speed is situated between6-16r/min.From the electrical machinery 1450 r/min rotational speeds,fallto the 6r/min rotational speed,the reduction gear ratio achieve 1:241.To feedquantity range of variation which matches with the main axle is big.This isone of this design difficulties.The designer root uses from the headstockadopts the cutting velocity,through the gear box speed change,to feedquantity which must match with the lathe,thus has solved this problem.In line with“economy,practical”the principle of design,this design basislathe finishing and the roughing various requirement,has designed two kindof different to feed quantities.And selected to various part of designs hascarried on the detailed computation and the proof,the organizationsimplifies,the layout was compact,the frugal material,reduced the cost.KeywordsKeywordsSpecial-purpose lathe Wheel Blank Speed Change Design