1、 数控车床液压系统的设计 完成日期： 指导教师签字： 评阅教师签字： 答辩小组组长签字： 答辩小组成员签字： I 摘 要 液压传动在发展现代工程机械的过程中扮演着越来越重要的角色，数控车床中 很多地方也用到液压传动系统，例如装卡装置和尾座顶紧装置等。 数控车床液压尾座在液压系统执行机构的驱动下进行工作，其工作时主要实现 尾座的顶紧和加紧过程。设计尾座的液压回路主要有液压缸、调速阀、电磁阀、单 向阀、溢流阀等组成，并充分考虑液压系统的优缺点，设计绘制出液压系统原理图， 选择合适的液压缸，计算出液压泵的参数，然后根据这些选择合适的油箱、阀、油 管和过滤器，最后再经过精确验算来完设计出一个完整的液压
2、系统。 关键词：数控车床；尾座；液压系统；液压缸 II Abstract Hydraulic transmission in the process of development of modern engineering machinery plays a more and more important role, many places are also used in CNC lathe hydraulic transmission system, such as card device with and tailstock device, etc. Hydraulic tailstoc
3、k of nc machine tool hydraulic system work under the actuator drive, to achieve the top of the tailstock and tightening process, design of hydraulic tailstock main hydraulic cylinder, speed regulating valve, solenoid valve, check valve, relief valve of hydraulic circuits, fully consider the advantag
4、es and disadvantages of the hydraulic system, hydraulic system design to map the schematic diagram, select the appropriate hydraulic cylinder, and calculated the parameters of the hydraulic pump, and then according to these to choose the appropriate fuel tanks, valves, tubing and filter, and then through the design of precise calculation to complete a hydraulic tailstock of the hydraulic system. Key words：numerically-controlled machine；tailstock；
