四自由度机械手

四自由度机械手

本科毕业设计说明书(论文)

摘要

在中国工业韧带发展中，很多高生产率高精度的机械加工设备从国外引进，比如数控车床和铣床等，还有把几种机床的功能集中在一起的加工中心等。总之这类CNC机床大大的提高了工作速度，产品的加工精度，降低了工作的劳动强度，所以大受欢迎。但是这类设备引进费用也是相当的昂贵，所以国内很多企业的技术人员在原先的旧机床上进行改进，来达到提高生产率和降低工人的劳动强度，实现工业自动化，这类改进同样也大受欢迎。

本文所设计的机械手主要用于搬运工件，工件总重不大于10Kg，长150cm，宽150cm，高150cm的立方体。为了增加本机械手的通用性，在结构尽可能紧凑的情况下，最大限度的是机械手具有较大的抓取范围。

本文主要介绍了搬运机械手的概念、组成和分类，接受的自由度和坐标形式、运动及国内外的发展状况。对于搬运接受进行总体方案设计，首先机械手的驱动装置为液压缸，然后确定了机械手的坐标像是为圆柱坐标型，自由度数为4，接着确定了机械手的驱动装置为液压缸，然后确定了机械手的主要技术参数。同时，设计了机械手的手部结构形式为气缸杠杆式手爪、臂部结构形式采用液压缸导向连接的双横臂结构，底座采用电机带动竖臂的旋转。机身结构形式为升降缸用液压缸的结构形式，计算出夹紧工件所需的驱动力、手爪转动时所需的驱动力矩、手臂的伸缩所需的驱动力手臂的俯仰所需的驱动力、手臂的升降所需的驱动力，和手臂回转所需的驱动力矩。继而设计了装箱机械手的各部分液压缸的尺寸和结构及各部分之间连接与支承部件的结构与尺寸。

关键词:搬运机械手; 液压驱动;液压缸;自动化

I

本科毕业设计说明书(论文)

Abstract

In China industrial ligament development, a lot of high productivity high precision machining equipments imported from abroad, such as CNC lathes and milling machines, and have several function of machine together in processing center, etc.. In this kind of CNC machine greatly improves the speed of work, product processing precision, reduces the labor intensity of work, so popular. But this kind of equipment is also very expensive, so many domestic enterprises technical personnel in the original old machine is improved, to improve productivity and reduce labor intensity of workers, industrial automation, this kind of improvement is also very popular.

The manipulator is designed in this paper is mainly used for

handling the workpiece, the workpiece weight is less than 10Kg, length 150cm, width 150cm, high 150cm cube. In order to increase the

versatility of manipulator in structure, as far as possible compact case, maximum limit is the manipulator has a large capture range.

This paper mainly introduces the concept, composition and

classification of the manipulator, freedom and coordinates, movement and development at home and abroad to accept. For the handling of acceptance for the overall program design, first drive manipulator for hydraulic cylinder, and then determine the coordinate manipulator like cylindrical coordinate, the number of degrees of freedom is 4, then the drive

manipulator for hydraulic cylinder, and then determined the main technical parameters of the manipulator. At the same time, the structure design of hand manipulator is cylinder lever type hand, arm structure adopts hydraulic cylinder guide connecting double wishbone structure, base the motor driven vertical arm rotation. Fuselage structure for lifting cylinder hydraulic cylinder structure, calculated clamping the workpiece required driving force, the gripper rotation required driving torque, the telescopic arm required driving force arm pitching required driving force, the arm lifting required driving force, driving torque and arm rotation required. Then design the structure and size and the supporting parts of the connection between the parts of the hydraulic cylinder loading manipulator size and structure and components.

Key words:Manipulator; hydraulic drive; hydraulic cylinder; automation

II

本科毕业设计说明书(论文)

目录

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