立柜式四轴数控铣床培训装置主轴系统毕业设计.doc

立柜式四轴数控铣床培训装置主轴系统设计 摘 要 数控技术和数控装备是制造工业现代化的基础，这个基础是否牢固直接影响到一个国家的经济发展和综合国力，关系到国家的战略地位。 本文介绍了立式数控铣床的一些基本概况，简述了机床主传动系统方面的原理和类型，分析了各种传动方案的机理。立式数控铣床主传动系统包括了主轴电动机、主轴传动系统和主轴组件三部分组成。本文详细介绍了立式数控铣床主传动系统的设计过程，该立式数控铣床主轴变速箱是靠同步带进行传动的，同步带传动综合了带、链和齿轮传动的优点，带的工作面呈齿形，与带轮的齿槽作啮合运动，使主、从带轮间作无滑差的同步运动，其特点是传动比精确，对轴的作用力小，结构紧凑，耐油耐磨损，抗老化性能好，传动效率可达99.5%，传动功率从几百到数百千瓦，传动比可达10，线速度可达40m/s。文中介绍了立式数控铣床主传动系统各种传动方案优缺点的比较、主传动方案的选择和确定、主传动变速系统的设计计算、主轴组件的设计、轴承的选用基润滑、关键零件的校核、以及主轴电动机的控制等设计过程。 关键词 数控机床/立式数控铣床/主传动系统/主轴组件/轴承/主轴电机 Cabinet Type Four Axis NC Milling Machine Spindle System Design Training Device ABSTRACT Numerical control technology and equipment manufacturing industry is modern foundation, this foundation is directly affects the economic development of a country and comprehensive national power, to the countrys strategic position. This paper introduces the basic situation of vertical CNC milling machine, the main transmission system of machine tool with respect to the principle and types, analysis mechanism of the transmission project. NC vertical milling machine main transmission system includes a spindle motor, spindle drive system and spindle assembly is composed of three parts. This paper introduces the CNC milling machine main transmission system design process, the vertical CNC milling machine spindle gear box by synchronous belt transmission, synchronous belt transmission comprehensive belt, chain and gear transmission the advantages, with the working surface of tooth shape, and the belt pulley slot for engaging movement, make the main, from the band wheel for non-slip synchronous movement, which is characterized by accurate transmission ratio, the axial force is small, compact structure, oil resistance and wear resistance, good ageing resistance, the transmission efficiency can reach 99.5%, the transmission power from a few hundred to several hundred kilowatt, transmission ratio can reach 10, line speed can reach 40m / s. This paper introduces vertical CNC milling machine main transmissi