机器人外文文献翻译、中英文翻译_第1页
机器人外文文献翻译、中英文翻译_第2页
机器人外文文献翻译、中英文翻译_第3页
机器人外文文献翻译、中英文翻译_第4页
机器人外文文献翻译、中英文翻译_第5页
已阅读5页,还剩4页未读 继续免费阅读

下载本文档

版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领

文档简介

1、外文资料robotThe industrial robot is a tool that is used in the manufacturing environment to increase productivity. It can be used to do routine and tedious assembly line jobs, or it can perform jobs that might be hazardous to the human worker . For example ,one of the first industrial robot was used to

2、 replace the nuclear fuel rods in nuclear power plants. A human doing this job might be exposed to harmful amounts of radiation. The industrial robot can also operate on the assembly line, putting together small components, such as placing electronic components on a printed circuit board. Thus, the

3、human worker can be relieved of the routine operation of this tedious task. Robots can also be programmed to defuse bombs, to serve the handicapped, and to perform functions in numerous applications in our society.The robot can be thought of as a machine that will move an end-of-tool ,sensor ,and/or

4、 gripper to a preprogrammed location. When the robot arrives at this location, it will perform some sort of task .This task could be welding, sealing, machine loading ,machine unloading, or a host of assembly jobs. Generally, this work can be accomplished without the involvement of a human being, ex

5、cept for programming and for turning the system on and off.The basic terminology of robotic systems is introduced in the following:1. A robot is a reprogrammable ,multifunctional manipulator designed to move parts,material,tool,or special devices through variable programmed motions for the performan

6、ce of a variety of different task. This basic definition leads to other definitions, presented in the following paragraphs, that give acomplete picture of a robotic system.2. Preprogrammed locations are paths that the robot must follow to accomplish work, At some of these locations, the robot will s

7、top and perform some operation ,such as assembly of parts, spray painting ,or welding .These preprogrammed locations are stored in the robots memory and are recalled later for continuous operation.Furthermore,these preprogrammed locations, as well as other program data, can be changed later as the w

8、ork requirements change.Thus,with regard to this programming feature,an industrial robot is very much like a computer ,where data can be stoned and later recalled and edited.3. The manipulator is the arm of the robot .It allows the robot to bend,reach,and twist.This movement is provided by the manip

9、ulators axes,also called the degrees of freedom of the robot .A robot can have from 3 to 16 axes.The term degrees of freedom will always relate to the number of axes found on a robot.4. The tooling and frippers are not part the robotic system itself;rather,they are attachments that fit on the end of

10、 the robots arm. These attachments connected to the end of the robots arm allow the robot to lift parts,spot-weld ,paint,arc-weld,drill,deburr,and do a variety of tasks,depending on what is required of the robot.5. The robotic system can control the work cell of the operating robot.The work cell of

11、the robot is the total environment in which the robot must perform its task.Included within this cell may be the controller ,the robot manipulator ,a work table ,safety features,or a conveyor.All the equipment that is required in order for the robot to do its job is included in the work cell .In add

12、ition,signals from outside devices can communicate with the robot to tell the robot when it should parts,pick up parts, or unload parts to a conveyor. The robotic system has three basic components: the manipulator, the controller, and the power source.A.Manipulator The manipulator ,which does the ph

13、ysical work of the robotic system,consists of two sections:the mechanical section and the attached appendage.The manipulator also has a base to which the appendages are attached.Fig.1 illustrates the connection of the base and the appendage of a robot.图1.Basic components of a robots manipulatorThe b

14、ase of the manipulator is usually fixed to the floor of the work area. Sometimes, though, the base may be movable. In this case, the base is attached to either a rail or a track,allowing the manipulator to be moved from one location to anther.As mentioned previously ,the appendage extends from the b

15、ase of the robot. The appendage is the arm of the robot. It can be either a straight ,movable arm or a jointed arm. The jointed arm is also known as an articulated arm.The appendages of the robot manipulator give the manipulator its various axes of motion. These axes are attached to a fixed base ,wh

16、ich, in turn, is secured to a mounting. This mounting ensures that the manipulator will in one location.At the end of the arm , a wrist(see Fig 2)is connected. The wrist is made up of additional axes and a wrist flange. The wrist flange allows the robot user to connect different tooling to the wrist

17、 for different jobs.图2.Elements of a work cell from the topThe manipulators axes allow it to perform work within a certain area. The area is called the work cell of the robot ,and its size corresponds to the size of the manipulator.(Fid2)illustrates the work cell of a typical assembly robot.As the r

18、obots physical size increases,the size of the work cell must also increase.The movement of the manipulator is controlled by actuator,or drive systems.The actuator,or drive systems,allows the various axes to move within the work cell. The drive system can use electric,hydraulic,or pneumatic power.The

19、 energy developed by the drive system is converted to mechanical power by various mechanical power systems.The drive systems are coupled through mechanical linkages.These linkages,in turn,drive the different axes of the robot.The mechanical linkages may be composed of chain,gear,and ball screws.B.Co

20、ntrollerThe controller in the robotic system is the heart of the operation .The controller stores preprogrammed information for later recall,controls peripheral devices,and communicates with computers within the plant for constant updates in production.The controller is used to control the robot man

21、ipulators movements as well as to control peripheral components within the work cell. The user can program the movements of the manipulator into the controller through the use of a hard-held teach pendant.This information is stored in the memory of the controller for later recall.The controller stor

22、es all program data for the robotic system.It can store several different programs,and any of these programs can be edited.The controller is also required to communicate with peripheral equipment within the work cell. For example,the controller has an input line that identifies when a machining oper

23、ation is completed.When the machine cycle is completed,the input line turn on telling the controller to position the manipulator so that it can pick up the finished part.Then ,a new part is picked up by the manipulator and placed into the machine.Next,the controller signals the machine to start oper

24、ation.The controller can be made from mechanically operated drums that step through a sequence of events.This type of controller operates with a very simple robotic system.The controllers found on the majority of robotic systems are more complex devices and represent state-of-the-art eletronoics.Tha

25、t is,they are microprocessor-operated.these microprocessors are either 8-bit,16-bit,or 32-bit processors.this power allows the controller to be very flexible in its operation.The controller can send electric signals over communication lines that allow it to talk with the various axes of the manipula

26、tor. This two-way communication between the robot manipulator and the controller maintains a constant update of the end the operation of the system.The controller also controls any tooling placed on the end of the robots wrist.The controller also has the job of communicating with the different plant

27、 computers. The communication link establishes the robot as part a computer-assisted manufacturing (CAM) system.As the basic definition stated, the robot is a reprogrammable, multifunctional manipulator.Therefore, the controller must contain some of memory stage. The microprocessor-based systems ope

28、rates in conjunction with solid-state devices.These memory devices may be magnetic bubbles,random-access memory,floppy disks,or magnetic tape.Each memory storage device stores program information fir or for editing.C.power supply The power supply is the unit that supplies power to the controller and

29、 the manipulator. The type of power are delivered to the robotic system. One type of power is the AC power for operation of the controller. The other type of power is used for driving the various axes of the manipulator. For example, if the robot manipulator is controlled by hydraulic or pneumatic d

30、rives,control signals are sent to these devices causing motion of the robot.For each robotic system,power is required to operate the manipulator .This power can be developed from either a hydraulic power source,a pneumatic power source,or an electric power source.There power sources are part of the

31、total components of the robotic work cell.中文翻译 机器人工业机器人是在生产环境中用以提高生产效率的工具,它能做常规乏味的装配线工作,或能做那些对于工人来说是危险的工作,例如,第一代工业机器人是用来在核电站中更换核燃料棒,如果人去做这项工作,将会遭受有害放射线的辐射。工业机器人亦能工作在装配线上将小元件装配到一起,如将电子元件安装在电路印刷板,这样,工人就能从这项乏味的常规工作中解放出来。机器人也能按程序要求用来拆除炸弹,辅助残疾人,在社会的很多应用场合下履行职能。机器人可以认为是将手臂末端的工具、传感器和(或)手爪移到程序指定位置的一种机器。当机器人

32、到达位置后,他将执行某种任务。这些任务可以是焊接、密封、机器装料、拆卸以及装配工作。除了编程以及系统的开停之外,一般来说这些工作可以在无人干预下完成。如下叙述的是机器人系统基本术语:机器人是一个可编程、多功能的机器手,通过给要完成的不同任务编制各种动作,它可以移动零件、材料、工具以及特殊装置。这个基本定义引导出后续段落的其他定义,从而描绘出一个完整的机器人系统。预编程位置点是机器人为完成工作而必须跟踪的轨迹。在某些位置点上机器人将停下来做某写操作,如装配零件、喷涂油漆或焊接。这些预编程点贮存在机器人的贮存器中,并为后续的连续操作所调用,而且这些预编程点像其他程序数据一样,可在日后随工作需要而变

33、化。因而,正是这种可编程的特征,一个工业机器人很像一台计算机,数据可在这里储存、后续调用与编辑。机械手上机器人的手臂,它使机器人能弯曲、延伸、和旋转,提供这些运动的是机器手的轴,亦是所谓的机器人的自由度。一个机器人能有316轴,自由度一词总是与机器人轴数相关。工具和手爪不是机器人自身组成部分,但它们安装在机器人手臂末端的附件。这些连在机器人手臂末端的附件可使机器人抬起工件、点焊、刷漆、电弧焊、钻孔、打毛刺以及根据机器人的要求去做各种各样的工作。机器人系统还可以控制机器人的工作单元,工作单元是机器人执行任务所处的整体环境,该单元包括控制器、机械手、工作平台、安全保护装置或者传输装置。所有这些为保

34、证机器人完成自己任务而必需的装置都包括在这一工作单元中。另外,来自外设的信号与机器人通讯,通知机器人何时装配工件、取工件或放工件到传输装置上。机器人系统有三个基本部件:机械手、控制器和动力源。A.机械手机械手做机器人系统中粗重工作,它包括两个部分:机构和附件,机械手也有联接附件基座,图1表示了一机器人基座与附件之间的联接情况。机械手基座通常在工作区域的地基上,有时基座也可以移动,在这种情况下基座安装在导轨或轨道上,允许机械手从一个位置移动到另外一个位置。正如前面所提到的那样,附件从机器人基座上延伸出来,附件就是机器人的手臂,它可以是直接型,也可以是轴节型手臂,轴节型手臂也是大家所知的关节型手臂。机械臂使机械手产生各轴的运动。这些轴连在一个安装基座上,然后再连到托架上,托架确保机械手停留在

温馨提示

  • 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
  • 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
  • 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
  • 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
  • 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
  • 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
  • 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

评论

0/150

提交评论