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数控 镗床 设计 CAD 图纸 PDF

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山东大学本科毕业设计（论文）摘 要随着数控机床的普遍使用和发展，自动化程度的不断提高，主轴及其组件设计是否合理已成为影响数控精度、制约数控发展的一个重要方面。因此提出了此次设计理念。本设计是以TKA2140数控镗床授油器主轴部件为主要内容。对数控镗床授油器主轴进行进一步的探讨和研究。首先对TKA2140进行了总体设计方案论证，镗床的各个部件及其功用也做了阐述和分析，主轴部分主要由结构设计和技术要求组成，对主轴各部位进行了精确的分析和计算，在连接件设计中选用了轴承类型及型号，与授油器工作及其相关的鼓形卡盘也做了分析设计，并提出了改进方案，完成主轴及连接件的设计后对其精度也做了详尽论述，保证其能具备良好的加工精度，液压缸的设计中，对授油器工作时起支撑作用的液压缸及其液压系统做了设计和计算，并对右端螺栓连接件进行了仔细的设计，授油器辅助器件中润滑密封和冷却系统对其工作性能有很大的影响，在此都做了详尽研究。在论文中还对部件进行了改进和创新，对授油器驱动装置做了进一步的设计和改进。旨在设计出合理的主轴及其部件。在论文的最后对数控系统进行了设计，从而使TKA2140数控深孔镗床的功能更加完善。关键词： 主轴结构 刚度 强度 精度 液压缸 部件改进Abstract With the widespread use of CNC machine tools and development, the continuous improvement of the degree of automation, and its main component design has become a reasonable impact on the accuracy of NC, NC restricting the development of an important aspect. Therefore we proposed design concept. This design is TKA2140 NC awarding oil-boring machine spindle components as the main content. NC delegate to the oil-boring machine spindle to conduct further exploration and study. First of all TKA2140 as a demonstration programme design, the boring machine and its function of the various components were also made on and analysis, some of the main spindle by the structural design and composition of the technical requirements of each part of a spindle accurate analysis and calculations, connecting pieces Selection of the design of the bearing types and models, and the awarding oil-related work and the drum-shaped chuck have done the analysis and design, and proposed improvement programme, completed spindle and connectivity of the design after its accuracy has also done a detailed exposition Ensure that their processing can have a good accuracy, the design of the hydraulic cylinders for the award for work at the oil play a supportive role in the hydraulic cylinder and the hydraulic system to do the design and calculation, and the far right of association bolt was carefully designed , The awarding of oil-lubricated sealed auxiliary devices and cooling system of its work of a very large impact of this has done a detailed study. In the paper are also components of the improvement and innovation, to grant the oil to drive the unit to do further design and improvement. Aims to design a reasonable spindle and their components. Finally, the paper numerical control system has been designed so that deep hole boring machine CNC TKA2140 the function more perfect.Key words spindle structure stiffness strength components improve the accuracy of hydraulic cylinders目 录引言1第一章 绪论21.1论文研究背景和意义21.2 数控机床国内外发展现状21.3 论文主要研究内容3第二章 数控镗床总体及部分总体设计 4 2.1 TKA2140数控深孔镗床总体设计4 2.1.1 调查研究4 2.1.2 方案拟定4 2.1.3 各部件总体设计52.2 授油器总体设计6 2.2.1 授油器参数6 2.2.2工作原理6 2.2.3 授油器设计规划7第三章 主轴设计83.1轴的结构设计83.2 轴上零件定位9 3.2.1 轴肩定位9 3.2.2改进轴强度93.3 各轴段直径和长度的确定10 3.3.1 主轴平均直径确定10 3.3.2 主轴支撑跨距的确定11 3.3.3 轴段精确直径长度133.4 轴在设计中的技术要求143.5 轴校核14 3.5.1 由弯距合成强度计算143.5.2 校核轴的强度 16 3.5.3 轴重要部位校核17第四章 主轴连接件设计184.1 球轴承的计算184.2 推力球轴承选用194.3 鼓形卡盘设计214.4 轴及其配件的拟改进方案21 4.4.1 导向键选择21 4.4.2导向套21第五章 主轴及连接件的精度235.1 极限23 5.1.1 各部位极限选择23 5.1.2具体选用方法245.2 公差带选择24 5.2.1 各部件的公差带24 5.2.2 轴与轴承的公差带255.3 形状公差和位置公差265.4 授油器部件表面粗糙度选择26第六章 授油器液压系统设计27 6.1液压缸设计27 6.2 螺栓设计28第七章 系统辅助部件设计317.1 润滑317.2 密封317.3 冷却系统31 7.3.1 冷却系统设计31 7.3.2 切削液的选择31第八章 部件改进创新33 8.1 授油器驱动装置33 8.1.1 拟齿轮传动33 8.1.2 拟液压控制方案35 8.