摘要液压控制系统在组合机床有着重要作用，对液压控制系统的设计也是进行组合机床设计的重要组合部分，做好液压控制系统的设计，有利于提升机床的总体性能，并使液压动力元件有效可靠的运行。

本文根据液压技术的发展现状和应用领域，及液压控制系统的特点，确定电液控制系统的设计分析。将任务书中的设计参数进行负载，确定执行元件的参数。分析液压系统设计是整个机械设计的一部分，它的任务是根据机器的用途、特点和要求，利用液压传动的基本原理，拟定出合理的液压系统图，按照执行元件的参数来选用液压元件的规格和进行系统的结构设计。再经过必要的验算来确定液压系统的执行元件。对液压系统的各回路进行性能分析，总结出该机加工生产线动力头的液压系统具有的性能特点。49478

现在机加工生产的控制系统大多采用的是电液控制。电液控制是将机电传动与液压系统相结合的先进的控制系统。确定系统的电控设计是动力头产生合适的进给、定位形式，从而满足所有钻削/攻丝/铣削动力头对不同工件的的加工控制要求，通过系统的控制要求进行电气控制线路设计和可编程序控制器系统分析。

毕业论文关键词：机加工 动力头 液压控制 电气控制 可编程序控制器

Abstract The hydraulic control system plays an important role in combination machine tools,The hydraulic control system design is also important for combination machine tools design combination part,Do the hydraulic control system design,Help to promote the overall performance of the machine tool,And make the hydraulic power components of an effective and reliable operation.

This paper according to the current situation of the development of the technology and application field, and hydraulic control system characteristics, to determine the electro-hydraulic control system design analysis. Will the design parameters commitments to load, make sure the implementation of components of the parameters. Analysis of the hydraulic system design is the whole part of the mechanical design, it is the task of machine USES, according to the characteristics and requirements, using the basic principle of hydraulic transmission, draw up a reasonable hydraulic system graph, according to the implementation of components of the parameters to choose hydraulic components and the structure of the system of the specifications of the design. And then after the necessary checking to make sure the execution element of the hydraulic system. For hydraulic system of each loop the performance analysis, summarizes the machine processing line power of the head of a hydraulic system has the performance characteristics.

Now the production control system of the machining USES mostly is the electro-hydraulic control.The electro-hydraulic control is will electromechanical transmission and hydraulic system of combining the advanced control system.Determine the application of power system is designed to produce the right to head into the form, orientation, so as to satisfy all drilling/tapping/milling power to the head of the different processing control requirements, through the system the control requirements of the electrical control circuit design and PLC system analysis.

Key words: Machining; Power head;Hydraulic control; Electrical control;  Programmable controller

 目  录

第一章 绪论 - 1 -

1.1 课题的来源与背景 - 1 -

1.2 关于机加工生产线动力头 - 1 -

1.3 机加工生产线组合机床的发展现状 - 2 -

1.4 液压技术的发展和应用