40T刮板输送机减速箱体加工工艺及立式钻孔组合机床主轴箱设计 摘要 组合机床是根据加工工件的需要，以大量系列化、标准化的通用部件为基础，配以少量专用部件对一种或多种工件按预先确定的工序进行多刀、多面、多轴、多工位加工的高效专用机床。在组合机床上可以完成钻孔、扩孔、铰孔、镗孔、攻丝、车削、铣削、磨削及滚压等工序，生产效率高，加工精度稳定。 本设计说明书介绍了40T刮板输送机减速箱体加工工艺及立式钻孔组合机床主轴箱设计过程和主要参数。首先简明的介绍了组合机床的特点加工精度和其发展趋势以及40T刮板输送机减速箱体加工工艺和采用组合机床的经济性分析。其次对组合机床进行了设计，根据要求确定了钻40T刮板输送机减速箱体结合面的8个Φ14的孔的组合机床的形式及零部件选择，动力部件选择及参数确定，三图的绘制等。第三是组合机床主轴箱的设计，主轴的主要技术参数及零部件选择。及各轴和齿轮的确定以及各主轴的转速校核。 关键词：组合机床；主轴箱设计；加工工艺 Abstract Machi
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nveyor box Process 目录 摘要I Abstract II 1箱体加工工艺规程规定1 1.1零件介绍1 1.11产品概述及零件的功用1 1.12零件的工艺分析及生产类型确定1 1.2机械加工工艺过程设计2 1.21毛坯分析2 1.22工艺路线的拟定和定位基面的选择3 1.23加工余量的确定7 1.24重点工序分析10 1.25把加工余量作为封闭环的尺寸链的计算14 2组合机床概述16 2.1组合机床的特点及分类16 2.1.1机床与通用机床、其他专用机床比较，有以下特点： 16 2.1.2组合机床的分类： 16 2.2组合机床的工艺范围及加工精度17 2.2.1孔加工17 2.2.2平面加工18 2.3组合机床的发展趋势18 2.3.1提高通用部件的水平18 2.3.2发展适应中小批生产的组合机床19 2.3.3采用新刀具19 2.3.4发展自动检测技术19 2.3.5扩大工艺范围20 3组合机床的总体设计21 3.1拟定组合机床方案21 3.1.1影响组合机床方案制定的因素21 3.1.2制定工艺方案要考虑的问题22 3.1.3确定机床配置形式及结构方案24 3.2三图的绘制25 3.2.1被加工零件的工序图25 3.2.2加工示意图32 3.2.3机床联系尺寸图37 4组合机床主轴箱的设计42 4.1设计主轴箱的原始依据42 4.2主轴箱的动力计算43 4.2.1动力计算43 4.2.2齿轮模数的初步确定44 4.3传动系统设计与计算44 4.3.1对传动系统的一般要求45 4.3.2主轴分布类型及传动系统设计46 结论51 参考文献52 致谢53