专业英语

7 8 JOG AXIS SELECT FEEDRATE OVERRIDE While selecting the JOG mode, selecting the axis and its cutting tool direction While feeding at a certain speed with F instructions, overriding the feed speed in a range 0%-150%; While selecting the JOG mode, speeding at a jog speed

键 盘 功 能 号 码 1 2 名 称 电源键 循环启动键（带灯） 用 途 按下ON接通CNC电源,按下OFF断开CNC电源 自动操作方式下，选择要执行的程序后按下此键，自动操作开始执行，同时键内的灯点亮。MDI方式下，数据输入完毕后按下此键，执行MDI指令。 3 4 进给保持键（带灯） 主功能选择开关 机床自动循环期间按下此键，机床立即减速、停止，键内的灯点亮。 选择机床的工作方式 1)编辑方式 2)自动方式 3)手动数据输入方式 4)手摇脉冲发生器操作方式 5)点动进给方式 6)手动快速进给方式 7)手动返回机床参考点方式 8)纸带工作方式 9)手脉示教方式 5 6 7 8 手摇脉冲发生器进给轴及倍率选择开关 手摇脉冲发生器 手动时进给轴及方向控制键 进给速率修调开关 当用F指令按一定速度进给时，在0%--150%范围内修调进给速度。当用手动JOG进给时，选择JOG速度 在手脉或手脉示教方式时，转动手脉进行所选轴的正方向或负方向进给 手动JOG方式时，选择手动进给轴和各轴的刀具运动方向 选择手脉进给的轴（X,Y,Z）及选择手脉进给时的最小脉冲当量

3. Assignment

A: Do exercise 2, 3, 4, 8 and 10.

B: Ask students to collect some external machine control panel

Section III Simulated Writing

Part I. Leading in

1. Checking the assignment

Check the answers to comprehension exercises on the workbook orally and comment Answer students’ questions found in Passage 1

2. Warming up for new class

Ask the students to present their collections of Passage 2

Part II. Putting in use

1. Dividing the students into groups of four or five 2. Presenting new materials Sample Effect: Remedy: 3。Reading and simulating

Ask the students to 1) read the sample above

2) do the following simulating exercise Remedy: Graphics/text too voluminous ·Sum of graphics and text elements too large ·Check display ________ (用程序工作站) ·________ (将内容分开覆盖两个图形) if necessary Explanation: ·Configuring error in selected display External data input error Data transfer interrupted. · Code is incorrect · Value excessive ·Dimensional identifier impermissible · Option not available ·Check PLC program ·Check NC－MD, PLC－MD Explanation: With external data input from the PLC to the NC:

Section IV Communicative Speaking

1. Dividing the students into groups of four or five 2. Offering the situations

Offer several situations for students to act out by referring to the data bank on the blackboard

【Instructions】 Each group should choose one of the situations and work together to form a dialogue and then act out. 3. Practicing and Furthering

【Instructions】 Practice the dialogues of the Textbook in groups, and try to further them

4. Completing

【Instructions】 Ask students to work in groups to complete by filling in the blanks of the Textbook, and then the teacher checks the answers in class. 5. Responding

【Instructions】 Practice Exercise 9 of the Textbook orally . Teacher offers the situation in Chinese, and asks the students to give the English equivalent, the whole class work together

(The script for the dialogue: )

A: Mr. Foster, how do you like our latest WT model? It’s fully automatic.

B: They certainly look attractive. Could you give us ____1____ (一些有关这种数字控制机床的宣传材料吗)?

A: Certainly. Here you are. You can take them all. B: We’d like to know more about your product.

A: OK. We have also a 20-minute video ____2____ (它介绍了我们最新产品的详细情况). B: That’ll be very helpful.

A: This catalog ____3____ (将使您对我们最新型号的产品更为了解). B: But your product is strange to our clients.

A: As far as technology is concerned, ____4____ (我们相信我们是最出众的). B: Is the operation fully computer-controlled? A: Yes, of course.

B: Your introduction has given me a clear idea of your product, and I am ____5____ (尤其对你们WT型的运行速度印象深刻).

1. some information about the CNC machine tool 2. presenting the details of our latest product

3. The catalog will give you a clear picture about our latest models 4. we believe we are the best in the world

5. particularly impressed by the speed of your WT model

Section V Broaden Your Horizon

Get to know more of the World Famous Companies.

American Broach & Machine Company

American Broach & Machine Company was founded in Ann Arbor Michigan in 1919 by F. J. Lapointe who has been known as the father of modern broaching. He held many of the basic patents that introduced the modern broaching techniques now used. The company was purchased by the Sundstrand Corporation of Rockford Illinois in 1973. The broaching tool division was purchased in 1961 by the present American Broach & Machine Corporation of Ann Arbor Michigan organization. During many years American Broach has been pioneering the development of numerous broaching applications in use today. American’s completely modern plant facilities and unbroken tradition of experienced craftsmanship assures you of broaching tools of the highest quality. Each broach is guaranteed for accuracy of dimension finish and quality. American Broach supplies a complete engineering service for the design of broaching tools and related equipment such as fixtures, holders and pullers. The company also produces a full line of broaching machines and CNC tool sharpeners.

编制日期： 2006年4月 22日

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