毕业设计（论文）-连杆端孔轴线平行度自动检测仪的设计（含全套CAD图纸）.doc

由于部分原因，说明书已删除大部分，完整版说明书，CAD图纸等，联系153893706 连杆端孔轴线平行度自动检测仪的设计 学 生： 指导老师： 摘 要：连杆是发动机的主要传力构件之一，常处于高速运动状态，因此要求与其它零件间具有较高的配合精度。因而连杆检测成了生产中频繁而又不可缺少的环节。连杆平行度测量仪是专门为检测汽车连杆而设计的专用测量工具，其结构简单、测量精度高。连杆两端孔的平行度的要求比较高，如果平行度差，就会使发动机的噪音大，耗油量大，摩擦大，磨损快，这就要求工件必须有很高的平行度。本设计是由机械系统设计和控制系统的设计所组成。包括齿轮传动的设计及选择，滚珠丝杠的设计及选择，步进电机的选择和装置中机械系统的设计，有关测试系统的控制设计及选择。本文主要的设计内容是机械的部分。 关键词： 连杆; 平行度; 检测 The?Design?of?The?Connecting?Rod?Hole?Parallel?to?The?Axis?of?Automatic?Detector Author: Tutor: (Oriental Science ＆Technology College of Hunan Agricultural University, Changsha 410128) Abstract：The connecting rod is one of main power transmission components of motor engine which is always moving in high speed. Therefore, it requests a highly connection with other components. Thus the connecting rod has become a frequent and indispensable part of the production. The connecting rod parallelism measuring instrument is specially designed for measuring automobile connecting rod , which has a simple structure and a high measuring accuracy. The center line parallelism of the car’s link bar has a high request. If the center line parallelism is not good, the auto engine will have a loud noise, big waste of oil, big friction and fast wear away. So it requests the work piece have a high center line parallelism. This design is composed by the mechanical system design and the control system design, including the design and selection of the gear drive and the ball bearing guide screw，selection of motor machine and design of the installment mechanical system , control design and selection of the test system . This design mainly focuses on the design of machine Key words：Connecting rod parallelism; examination 1 前言 连杆是汽车发动机的主要传力构件之一，常处于高速运动状态，因此要求与其它零件间具有较高的配合精度。在实际生产中常采用放大孔径公差带制造，通过分组装配满足配合精度要求，因而连杆检测成了生产中频繁而又不可缺少的环节。目前我国连杆检测常采用两种方法，一种是采用国产气动测量仪检测两端孔孔径值，并同时测出两者的中心距，而对平行度和交叉度则采用手工检测方法；另一种采用进口气动量仪直接监测5-6个参数。连杆平行度测量仪是专门为测量汽车连杆而设计的专用测量工具。要求其简单轻便，结构简单，测量精度高，且测量过程要求自动化，是机电一体化方面上的设计题目。 图