平面铣削自动夹具设计

摘  要

本论文主要阐述了液压夹具的设计,液压技术是机械设备中发展速度最快的技术之一。特别是近年可与微电子、计算机技术相结合、使液压技术进入了一个新的发展阶段。目前，已广泛应用在工业各领域。由于近年来微电子、计算机技术的发展，液压元器件制造技术的进一步提高，使液压技术不仅在作为一种基本的传统形式上占有重要地位而且以优良的静态、动态性能成为一种重要的控制手段。
本文首先介绍液压系统工作原理，说明液压夹具的特点。然后分析工件加工工序和加工特点，确定夹具功能, 分析工件的定位和夹紧要求，确定定位方案和夹紧方案；分析工件的定位和夹紧要求，确定定位方案和夹紧方案；确定夹具结构，确定夹紧机构（液压夹紧）方案；分析液压系统工作过程，设计其功能；设计液压系统原理图；设计计算液压系统主要参数，即液压泵工作压力、流量，电动机功率，溢流阀、顺序阀等的调定压力值等。
 
关键词：液压系统，液压夹紧，液压缸，液压夹具

Automatic face milling fixture design

Abstract

This paper mainly expounds the design of hydraulic clamp, hydraulic technology is one of the fastest growing technology in mechanical equipment. Especially in recent years and microelectronics, computer technology combined, so that the hydraulic technology has entered a new stage of development. At present, has been widely used in various industrial fields. Due to the development of microelectronics, computer technology in recent years, hydraulic components manufacturing technology to further improve, so that the hydraulic technology not only plays an important role in as a basic form of traditional and good static and dynamic performance, has become an important means of control.
This paper first introduces the working principle, hydraulic system, and explains the characteristics and advantages of hydraulic clamp. Then analysis the workpiece machining process and machining characteristics, determine the fixture function, analysis of positioning and clamping the workpiece requirements, determine the positioning and clamping scheme; analysis of positioning and clamping the workpiece requirements, determine the positioning and clamping scheme; determine the fixture structure, determine the clamping mechanism (hydraulic clamping) scheme; analysis of the hydraulic system of the working process, the design schematic diagram of hydraulic system; design; design and calculation of main parameters of hydraulic system, namely the pump working pressure, hydraulic flow, motor power, relief valve, sequence valve set pressure value.
 
Keywords: hydraulic system, hydraulic clamping, hydraulic cylinder, hydraulic fixture