18级主轴箱毕业设计.doc

普通车床主轴变速系统设计（18级） 摘 要:传动系统是指将动力机的运动和动力传递给执行机构或执行末端件的中间装置。组成传动系统的一系列传动件称为传动链，所有传动链及它们之间的相互联系组成传动系统。而机床传动系统的现状及发展趋势由整体机床表现出来，我国现今企业机械加工机床大多数还是以普通车床为主，但数控机床占有率逐年上升，且在大中企业已有较多的使用，在中小企业甚至个体企业中也使用。但除少量机床以FMS 模式集成使用外，大都处于单机运行状态，并且有相当的一部分使用效率并不高。而世界上许多国家机床的发展正向着高速、精密、复合、智能和绿色的数控机床发展。本课题是以普通车床传动系统为研究目标，从其主传动系统结构入手，对其系统结构设计、结构组成分析、分级变速分析、传动件的计算分析等几个方面进行研究。为优化传动系统结构和改善传动系统的精度及稳定特性提供必要的理论依据。通过本课题的研究，使机床结构更加紧凑，性能更加优越，生产加工更加精密。 关键词:传动链；传动系统；数控机床；FMS。 18 variable speed machine transmission system design Abstract : Transmission refers to the movement of the power machine and power passed to the implementing agencies or the implementation of the end of the intermediate device. Up the drive links a series of drive known as the drive chain of transmission chains and their inter-linkages between the transmission systems. Situation and development trend of the machine drive system overall machine performance, our present most of the enterprise machining machine tool or an ordinary lathe-based, but the CNC machine tools market share increased year by year, and more use in large and medium enterprises, is also used in small and medium enterprises and even individual companies. Apart from a small amount of machine tools to integrated use of the FMS mode, mostly in the stand-alone operation status, and a considerable part in the inefficient use of backward, management status. The development of many countries, machine tools in the world! High-speed, precision, complex, intelligent and green is the general trend of the CNC machine tool technology development. This topic is a variable speed lathe drive system for the study objectives, starting from the structure of the main transmission system, system architecture design, structure, grading, several aspects of the calculation of the transmission study. In order to optimize the transmission system and to improve the accuracy and stability characteristics of the transmission system to provide the necessary theoretical basis for the research of