关于机械制造的英语文章
关于机械制造的英语文章
近年来国内外的机械故障诊断技术发展迅速，研究的手段和方法日新月异，其应用已遍及各个工业领域。下面小编整理了关于机械制造的英语文章，希望大家喜欢!
关于机械制造的英语文章摘抄
直接数据控制
The computer calls the part program instructions from bulk storage and sends them to the individual machines as the need arises.
计算机从海量内存中取出部分程序指令送入到需要的独立机床中。
It also receives data back from the machines.
相应的计算机也接受机床反馈信息。
This two-way information flow occurs in real time, which means that each machine’s requests for instructions must be satisfied almost instantaneously.
这种双工的信息流在实时控制加工系统中出现意味着每台机床需要指令的请求能立即得到回应。
Similarly, the computer must always be ready to receive information from the machines and to respond accordingly.
类似的，计算机必须总是要准备要接受信息和进行回应。
The remarkable feature of the DNC system is that the computer is servicing a large number of separate machine tools all in real time. Depending on the number of machines and the computational requirements that are imposed on the computer, it is sometimes necessary to make use of satellite computers, as shown in Fig.2.4.
DNC系统显著特点是可以实时控制大量机床。更具机器数量和所需的计算机程度化。有时需要使用卫星计算机如图2.4 所示。
These satellites are smaller computers, and they serve to take some of the burden off the larger central computer.
卫星计算机是更小的计算机 可以分担中央计算任务 减轻其负担。
Each satellite controls several machines.
每台卫星控制几台机床。
Groups of part program instructions are received from the central computer and stored in buffers.
零件加工指令程序由计算机接受 储存在内存中
They are then dispensed to the individual machines as required Feedback data from the machines are also stored in the satellite’s buffer before being collected at the central computer.
当需要时卫星计算机发送指令程序到每个独立机床中。来自机床的反馈数据在电脑中央存储接受之前存储在卫星内存中。
关于机械制造的英语文章鉴赏
Computer numerical control
计算机数字控制
Since the introduction of DNC, there have been dramatic advances in computer technology.
由于DNC技术的介入,在计算机技术上得到了很大的发展。
The physical size and cost of a digital computer have been significantly reduced at the sametime that its computational capabilities have been substantially increased.
计算机在尺寸和成本显著减少的同时,计算机的能力却有很大的提高。
In numerical control, the result of these advances has been that the large hard-wired MCU ofconventional NC have been replaced by control units based on the digital computer. Initially,minicomputers were utilized in the early 1970s.
在数控中,这些发展使得由硬件布置的MCU变为数字电脑控制的控制单元。最早,小型机在1970 年使用。
As further miniaturization occurred in computers, minicomputers were replaced by today'smicrocomputers.
随着计算机进一步小型化,小型机被当今的微型机取代。
Computer numerical control is an NC system using dedicated microcomputer as the machinecontrol unit.
计算机控制也是一种数字控制,它采用微型计算机作为控制单元。
Because a digital computer is used in both CNC and DNC, it is appropriate to distinguishbetween the two types of system. There are three principal differences:
由于数字电脑用于CNC 和DNC 中,只近似区分两种类型。有三个区分原则?
DNC computers distribute instructional data to, and collect data from, a large number ofmachines. CNC computers control only one machine, or a small number of machines.
DNC 电脑接受和发送指令数据都是来自许多机器,CNC 电脑控制只是一个机器或多个机器。
DNC computers occupy a location that is typically remote from the machines under theircontrol. CNC computers are located very near their machine tools.
DNC 电脑占有一个位置通过控制来实现机器的旋转。CNC 电脑要非常靠近车床。
DNC software is developed not only to control individual pieces of production equipment, butalso to serve as part of a management information system in the manufacturing sector of thefirm.
DNC 软件的发展不经可以控制生产设备的每个单独零件,还可以在生产坚固性方面提供主要控制信息。
关于机械制造的英语文章赏析
CNC software is developed to augment the capabilities of a particular machine tool.
CNC 的提高可以提高特殊车床的能力。
The general configuration of a computer numerical control system is pictured in Fig.2.5.
电脑数控系统的大体配置如图2.5 所示。
As illustrated in the diagram, the controller has a tape reader for initial entry of a partprogram.
如图中所示,最初进入控制器的是磁带播放机。
In this regard, the outward appearance of a CNC system is similar to that of a conventionalNC machine.
这样,CNC 的外部系统与传统的NC机相似。
However, the way in which the program is used in CNC is different.
然而CNC 中的程序使用方法是不同的。
With a conventional NC system, the punched tape is cycled through the tape reader for eachworkpart in the batch. The MCU reads in a block of instructions on the tape, executing thatblock before proceeding to the next block.
与传统的数控系统比,纸带通过纸带阅读机对每个批次的工件循环。MCU读取磁带上的指示块,执行该块,然后进行下一个块。
In CNC, the entire program is entered once and stored in computer memory.
在数控中,整个程序一旦进入并储存在电脑的存储器中。
The machining cycle for each part is controlled by the program contained in memory ratherthan from the tape itself.
每个零件的加工周期控制在内存中,而不是来自磁带本身的程序。
Control algorithms contained in the computer convert the part program instructions intoactions of the machine tool (or other processing equipment).
在计算机中的控制算法转换成机床或其他加工设备的行动的一部分程序指令。
Certain functions are carried out by hard-wired components in the MCU.
MCU中进行硬连接组件的某些功能。
For example, circular interpolation calculations are often performed by hardwired circuitsrather than by stored program. Also, a hardware interface is required to make the connectionswith the machine tool servo systems.
例如,圆弧插补计算往往是通过硬连接的电路,而不是由存储程序执行。另外,硬件接口需要与机床伺服系统连接。