汽车电动门窗实验台主机设计_毕业论文.doc

摘 要 随着汽车制造业的不断发展，汽车门窗玻璃升降器在乘用车中的使用比例不断增大，同时对门窗升降器的可靠性、舒适性和操纵性等的要求越来越高，这就要求升降器生产和检测的自动化程度不断提高。简单的检测技术在很多方面已经不能适应自动化大生产的要求。汽车车窗使用频繁，如果出现车窗升降不到位、滑落、卡死等情况，会给使用者带来各种不便和隐患，更严重的是，如出现负荷过重甚至卡死，过大的电流容易烧毁驱动电机甚至连带引起车辆供电故障。近年来，电动玻璃升降器的控制技术发展很快，玻璃升降器的功能越来越复杂，使用要求越来越高，因此，迫切需要一种综合性能的检测装置。 本文依照行业标准，以一汽捷达使用的汽车玻璃升降器为对象，着眼于提高检测质量、生产效率、产品合格率等，设计一台自动化程度较高的检测台。 根据升降器的结构特点和检测标准，选择了相应的传感器、检具以及气缸等元器件，并设计了升降器的夹具部分。该检测台主要分为几大部分：第一，主机框架由铝合金型材料构成，外形为琴台式结构；第二,气动及电动安装测试台位于主机中部,按左右被试工件安装要求对称分布，主要由支撑台板、工件的滑道安装架、测量架、固定电机的机构及气缸、测量剩余力的负荷传感器，滑动头定为气缸和等长定位气缸组成；第三，气动负载挂卸装置，其目的是将负载自动与电动窗的滑动头连接在一起，采用挂摆方式，滑动头上下移动时通过链条带动80N负载在链条轮上移动；第四，控制系统是由工业控制计算机、测量系统和继电逻辑阵列等组成，具有控制精度高、测量准确稳定、人机界面友好的特点。 关键词：玻璃升降器 检测台 气缸 传感器 结构  Abstract With the continuous development of automobile industry,the application of lifter for automotive window in passenger car is growingly popular.Meanwhile,the demands for its performance such as reliability,comfort,operability are high which requires continuously increasing degree of automation in production and detection of lifter.In many respects simple detection technology can not satisfy the automatic large-scale production any more. With its frequent application,lifting of automotive window being not in place,sliding or jamming will causes inconveniences and hidden danger to users.Whats more,in case of overloading or jamming,excessive current will be very likely to burn driving motor or even cause power supply failures jointly.In recent years,control technology of electric glass lifter developed rapidly,functions of glass lifter became more and more caplicated,and requirements of use are higher and higher.In this situation,a comprehensive performance measurement device is desperately needed. Based on automotive glass lifter used in FAW Jetta,this paper,in accordance with industry standards,designs a test-bed with high degree of automation in order to improve the detection quality,productivity,rate of qualified products etc. According to t