设计简介
MJ-50数控车床主传动系统
摘要
科学技术和社会生产的不断发展，对机械产品的性能、质量、生成率和成本提出了越来越高的要求。机械加工工艺过程自动化是实现上述要求的重要技术措施之一。单件、小批量生产占机械加工的80%左右，一种适合于产品更新换代快、品种多、质量和生产效率高、成本低的自动化设备的应用已迫在眉睫。而数控机床这一集机械、电气、液压、气动、微电子和信息等多项技术为一体的机电一体化产品，机械制造设备中具有高精度、高效率、高自动化和高柔性化等优点的工作母机，适应了这种要求，满足了目前生产需求。数控机床的技术水平高低及其在金属切削加工机床产量和总拥有量的百分比是衡量一个国家国民经济发展和工业制造整体水平的重要标志之一。数控车床是数控机床的主要品种之一，它在数控机床中占有非常重要的位置。
因此了解数控车床的结构与工作原理是操作、维修、改进数控车床的前提，也是设计一款数控车床的基本。基于此本文介绍了MJ-50数控车床的主传动系统。
关键词：机械加工，数控车床，主传动系统
MJ-50 of CNC lathe main transmission system
Abstract
Science and technology and the development of social production, the mechanical product performance, quality, producing rate and cost put forward more and more high demand. Mechanical processing process automation is to realize the above requirements of important technical one of the measures. Single or small batch production accounts for about 80% of the mechanical processing, a suitable product update quickly, variety, quality and high production efficiency, low cost of the application of automation equipment is imminent. And the numerical control machine this set mechanical, electrical, hydraulic, pneumatic, microelectronics and information etc many technology for the integration of mechanical and electrical products, machinery manufacturing equipment has high precision, high efficiency, high automation and high flexibility of the advantages of machine tools, used to the demand, meet the current production requirements. Numerical control machine tool technology level and in the metal cutting machine tools and the percentage of the total yield of ownership is the measure of a country's national economic development and industrial manufacturing level one of the important marks. Numerical control lathe is one of the main types of the numerical control machine tool, it in the numerical control machine tool occupies very important position.
So understand CNC lathe structure and working principle of operation, maintenance and improvement is the premise of the CNC lathe, CNC lathe is also design a basic. Based on this this paper introduces MJ-50 of CNC lathe main transmission system.
Keywords: mechanical processing，numerical control lathe，main transmission system
摘要
科学技术和社会生产的不断发展，对机械产品的性能、质量、生成率和成本提出了越来越高的要求。机械加工工艺过程自动化是实现上述要求的重要技术措施之一。单件、小批量生产占机械加工的80%左右，一种适合于产品更新换代快、品种多、质量和生产效率高、成本低的自动化设备的应用已迫在眉睫。而数控机床这一集机械、电气、液压、气动、微电子和信息等多项技术为一体的机电一体化产品，机械制造设备中具有高精度、高效率、高自动化和高柔性化等优点的工作母机，适应了这种要求，满足了目前生产需求。数控机床的技术水平高低及其在金属切削加工机床产量和总拥有量的百分比是衡量一个国家国民经济发展和工业制造整体水平的重要标志之一。数控车床是数控机床的主要品种之一，它在数控机床中占有非常重要的位置。
因此了解数控车床的结构与工作原理是操作、维修、改进数控车床的前提，也是设计一款数控车床的基本。基于此本文介绍了MJ-50数控车床的主传动系统。
关键词：机械加工，数控车床，主传动系统
MJ-50 of CNC lathe main transmission system
Abstract
Science and technology and the development of social production, the mechanical product performance, quality, producing rate and cost put forward more and more high demand. Mechanical processing process automation is to realize the above requirements of important technical one of the measures. Single or small batch production accounts for about 80% of the mechanical processing, a suitable product update quickly, variety, quality and high production efficiency, low cost of the application of automation equipment is imminent. And the numerical control machine this set mechanical, electrical, hydraulic, pneumatic, microelectronics and information etc many technology for the integration of mechanical and electrical products, machinery manufacturing equipment has high precision, high efficiency, high automation and high flexibility of the advantages of machine tools, used to the demand, meet the current production requirements. Numerical control machine tool technology level and in the metal cutting machine tools and the percentage of the total yield of ownership is the measure of a country's national economic development and industrial manufacturing level one of the important marks. Numerical control lathe is one of the main types of the numerical control machine tool, it in the numerical control machine tool occupies very important position.
So understand CNC lathe structure and working principle of operation, maintenance and improvement is the premise of the CNC lathe, CNC lathe is also design a basic. Based on this this paper introduces MJ-50 of CNC lathe main transmission system.
Keywords: mechanical processing，numerical control lathe，main transmission system
目录
1绪论 1
1.1数控车床的现状及前景 1
1.2 数控车床的组成与适用范围 1
1.2.1数控车床的组成 1
1.2.2数控车床的特点 3
1.2.3 数控车床的分类 3
1.3国内外数控车床主传动系统的发展 4
1.3.1 数控车床发展总趋势 4
1.3.2中国发展数控车床存在的主要问题 5
2 主传动系统设计与结构说明 8
2.1 设计思想 8
2.1.1 MJ-50数控车床的布局 8
2.1.2 MJ-50数控车床的主要技术参数 8
2.2主传动系统特点 9
2.3对主传动系统的要求 9
2.4主传动系统的方式 11
2.5主传动系统主要技术指标的确定 12
2.5.1动力参数的确定 12
2.5.2主运动调速范围的确定 14
2.5.3主轴计算转速的确定 15
3 主轴组件的设计与校核 17
3.1 主轴箱的结构 17
3.2传动皮带的设计和选定 18
3.3主轴的设计与校核 20
3.4主轴支撑的选择 25
3.4.1轴承的选择 25
3.4.2轴承的预紧 26
3.4.3轴承的润滑 26
3.5主轴驱动装置、工作特性及速度控制 27
3.6电机的选择 28
3.6.1交流主轴驱动装置及其工作特性 28
3.6.2交流主轴电机的调速 29
3.7主轴转速的自动变换 30
3.8主轴旋转与轴向进给的同步控制 31
3.9主轴旋转与径向进给的同步控制 31
结论 32
致谢 33
参考文献 34
