水润滑轴承柔性制造平台的物料输送装备设计与研究

发布时间：2018-01-16 20:35

本文关键词：水润滑轴承柔性制造平台的物料输送装备设计与研究　出处：《重庆大学》2012年硕士论文　论文类型：学位论文

【摘要】：水润滑轴承作为机械传动系统中的关键零部件，利用新型工程复合材替代贵重金属，用水代替矿物油作为机械传动系统的润滑介质，不仅节约大量的油料,还可以避免以油为润滑介质对环境造成的污染，因而具有资源节约、环境友好、结构简单、高性能等优点，近年来得到了广泛应用。因此，如何实现水润滑轴承制造加工的自动化、高效化这一课题吸引了越来越多企业和专家学者的关注。但是长期以来，水润滑轴承在硫化机上完成硫化成型之后，大多依靠工人在普通车床上完成对水润滑轴承毛坯的平端面、车外圆和倒角的操作，导致水润滑轴承的生产效率低，工人劳动强度大、工作环境恶劣。因此，设计一套能够实现水润滑轴承高效自动加工的设备具有重要的工程实际意义。本文提出一套水润滑轴承柔性平台，该平台由一台双臂机器人、数控车床、上下料系统和机械手组成，它能够实现水润滑轴承的柔性自动加工，其中上下料系统和机械手需要设计。本课题的重点是设计上下料系统和机械手，实现上下料系统的自动控制。本文研究的主要内容可以概括如下： ①分析国内外常见的圆柱体工件物料输送设备，根据水润滑轴承的尺寸、重量和外形，设计一套能满足不同规格的水润滑轴承坯料输送和成品回收的上下料系统。 ②以PLC为控制硬件核心，选择适合的触摸屏、变频器、光电传感器和继电器等控制硬件，组成PLC控制系统，根据需要实现的功能绘制控制流程图，编写PLC梯形图程序，实现上下料系统的自动控制。 ③比较常用机械手的优缺点和原理，根据所需要抓取的水润滑轴承的外形、重量和机器人末端机械接口尺寸，，设计两只能够实现不同规格的水润滑轴承抓取的气动机械手。 ④利用SolidWorks三维CAD软件建立该气动机械手的虚拟样机模型，并进行虚拟装配和干涉分析。利用ANSYS Workbench有限元软件对机械手进行有限元分析，得到机械手各部件的应力云图，检验机械手各部件的强度是否符合要求。 ⑤利用ADAMS对气动机械手进行动力学分析，检验机械手的夹紧力与设计是否相符。
[Abstract]:Water lubricated bearing is the key part in mechanical transmission system. It not only saves a large amount of oil but also uses new engineering composite to replace precious metal and mineral oil to replace mineral oil as lubricating medium of mechanical transmission system. It can also avoid environmental pollution caused by oil as lubricating medium, so it has the advantages of saving resources, friendly environment, simple structure and high performance, and has been widely used in recent years. How to automate the manufacture and processing of water lubricated bearings has attracted the attention of more and more enterprises and experts. But for a long time, water lubricated bearings have been vulcanized in vulcanization press. Most of them depend on the workers to finish the operation of the water lubricated bearing blank on the ordinary lathe, which leads to the low production efficiency of the water lubricated bearing, the heavy labor intensity of the workers, and the bad working environment. It is of great practical significance to design a set of equipment that can realize high efficiency automatic machining of water lubricated bearings. This paper presents a flexible platform for water lubricated bearings, which consists of a double arm robot and a numerical control lathe. The loading and unloading system and manipulator can realize the flexible automatic machining of water lubricated bearing in which the loading and unloading system and manipulator need to be designed. The emphasis of this subject is to design the loading and unloading system and manipulator. The main contents of this paper can be summarized as follows: 1. Analyze the common material conveying equipment of cylindrical workpiece at home and abroad, according to the size, weight and shape of water lubricated bearing. Design a feeding system which can meet different specifications of water lubricated bearing billet transportation and product recovery. (2) take PLC as the control hardware core, select suitable control hardware such as touch screen, frequency converter, photoelectric sensor and relay, compose the PLC control system, draw the control flow chart according to the function that needs to be realized. PLC trapezoidal diagram program is written to realize the automatic control of the upper and lower feeding system. 3Compared the advantages and disadvantages and the principle of common manipulator, according to the need to grasp the water lubricated bearing shape, weight and robot end mechanical interface size. Two pneumatic manipulators are designed which can grasp water lubricated bearings of different specifications. (4) the virtual prototype model of the pneumatic manipulator is established by using SolidWorks 3D CAD software. The virtual assembly and interference analysis are carried out. The finite element analysis of the manipulator is carried out by using ANSYS Workbench finite element software, and the stress cloud diagram of each component of the manipulator is obtained. Check whether the strength of the components of the manipulator meets the requirements. 5 using ADAMS to analyze the dynamics of the pneumatic manipulator to verify whether the clamping force of the manipulator is in accordance with the design.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH165.1

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