拜托高手帮我翻译一下专业英语,急急急急用啊,在次感激不尽!!!回答得好还会追加分!

A machine tool can be considered to be a complex assembly consisting basically of the following:
1) Power units.
2) Speed control units for both work and movements.
3) A means of controlling the line of movement of the tool and /or work.
4) Tool or work movement actuating mechanisms with control on the amount of movement.
5) Tool and work holding devices.
6) A structure linking and aligning the individual units together, so that the tool and work are maintained in a controlled relationship(1).
Power units
There are three types of power units required:
1) For driving the main spindle (cutting speed).
2) For driving the saddle or carriages (feed)
3) Providing power for ancillary services.
The motors are of two kinds:
1) Electrical. Alternating current (AC), Direct current (DC) or stepper motors.
2) Fluid. Hydraulic or pneumatic motors.
Speed control units
The variation in speed of DC motors is obtained by varying either the armature voltage or the field voltage. The output signal generated by the pulse generator or tacho-generators is compared with the input value of the voltage to be applied to the DC motor, which represents the desired speed, and any difference between these voltages is used to vary the voltage to obtain the required speed.
Control of translational (line) movements
A slideway is used to control the direction, or line of action, of the translational movement of the carriage or table on which the tools or work are held.
As a safety measure, microswitches are positioned near the ends of the slideway. If the microswitches are activated (closed) by contact with the carriages, the power to the feed motors will be switched off. This will prevent the carriages traveling too far and striking the leadscrew bearing end housings, or the nut screwing off the leadscrew(2).
Slideways commonly used on machine tools have a number of different forms, such as cylindrical, vee, flat and dovetail.
Control of rotational movements
In a similar way as the translational movement of the carriage is controlled by the slideways, rotational movements of spindles are controlled by circular bearings. The accuracy of the roundness of the rotation is dependent on the quality of the bearings.
Actuating mechanisms
Of all the constructional that make up a numerically controlled machine tool, the efficiency and responsiveness of the actuating mechanisms (the drive unit) have the greatest influence on the accuracy of the work produced.
The actuating mechanisms for the carriage for tool or work found on numerically controlled machine tools are: screw and nut; rack and pinion; and ram and piston.

工具机可以被认为是一个复杂的组件主要包含以下:

1)机组。

2)速度控制单元的工作和运动。

3)一种手段的运动控制线和/或工作的工具。

4)工具或工作运动执行机构控制的数量的运动。

5)工具和工件夹持装置。

6)结构连接和调整个别单位一起,使刀具与工件保持在可控的关系(1)。

功率单位

有三种类型的功率单位:

1)驱动主轴(切削速度)。

2)驱动的马鞍和马车(饲料)

3)提供辅助服务。

电机2种:

1)电器。交变电流(交流),直流(直流)或步进电机。

2)流体。液压或气动马达。

速度控制单元

直流电机速度的变化是通过改变电枢电压和励磁电压。输出信号产生的脉冲发生器或tacho-generators是与输入值的电压应用于直流电机,它代表所需的速度,以及它们之间的电压差是用来改变电压获得所需的速度。

控制平移(线)运动

滑道是用来控制方向,或线的作用,运输平移运动或表上的工具或工件举行。

作为安全措施,微动开关的位置靠近两端的导轨。如果微动开关被激活(关闭)接触车厢,权力饲料电机将关闭。这将防止车厢旅行太远和惊人的丝杠轴承端盖,或螺母拧掉丝杠(2)。

导轨常用机床有许多不同的形式,如圆柱,形,平和燕尾。

控制旋转运动

以类似的方式为平移运动的运输是由导轨,旋转运动是由圆形轴承锭子。精度的圆的旋转是依赖于质量的轴承。

驱动机制

所有的建筑,使了一个数控机床,效率和响应的驱动机制(驱动装置)有最大影响的准确性作品。

该驱动机制的运输工具或工作发现的数控机床是:螺丝和螺母;齿轮齿条式;活塞和公羊。
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第1个回答  2011-10-24
机床可以被认为是一个复杂的装配的组成主要如下:
1)发电机组。
2)速度控制和工作单位的动作。
3)来控制运动的线条的工具和/或工作。
4)工具或运行工作机制和控制以大量的运动。
5)的工具和设备工作持有。
6)结构和调整单元连接在一起,使工具和工作在一个受控的关系保持(1)。
发电机组
有三种类型的发电机组要求:
1)驱动主轴(切削速度)。
2)在鞍或车厢开车(喂)
3)为辅助服务提供能量。
发动机有两种:
1)电器。交流电(AC)、直流电(DC)还是步进电机。
2)的液体。液动或气动马达。
速度控制单元
在速度的变化得到直流电机电枢电压变化或者或场地电压。输出信号的脉冲发生器产生的或tacho-generators对比输入电压值被应用到直流电机,代表着希望的速度,以及任何区别用来改变这些电压的电压得到所需的速度。
翻译(线)的控制动作
一个导轨是用来控制方向,或线的动作、平移运动的马车或桌子上举行的工具或工作。
作为安全措施,生产是定位在导轨的两端。如果生产(关闭)被激活接触的车厢里的乘客,有权力去饲料电机将成为关闭。这将防止车辆太远和打击旅行结束leadscrew轴承外壳,或螺母螺丝从leadscrew(2)。
常用机床导轨上有多种不同的形式,如圆柱、钨钢、公寓、相吻合。
旋转运动控制
以类似的方式为transl
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