《数控技术应用专业英语》(第二版)课件 (5)
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中职 数控技术应用专业英语完整版课件全套ppt教程(最新)
数字控制是按照含有机床(刀具)运动信息程序所
指定的顺序自动执行操作的加工过程。
此句中包含两个定语从句，第一个从句的先行词是 machining process，in which引导从句the operations are
executed automatically in sequences as specified by the
1．Words 词汇
numerical control (NC) 数字控制 computer numerical control (CNC) 计算机数
字控制 advanced manufacturing technologies 先进制
造技术 Massachusetts Institute of Technology (M.I. T.)
because of the precision of the CNC machine and
lesser operator impact;
由于计算机数控机床的精度高，受操作 者影响小，废品率明显降低。
because of ：因为，由于……的原因 ③ It is easy to incorporate part design changes
when CAD/CAM systems are used; 采用 CAD/CAM 系统后，对零部件装配设
计的修改就变得很容易。
此句中 it 作形式主语，真正的主语是“to incorporate part design changes”。
Lesson 4 The Construction of CNC Machines
2. Key Sentences 重点句子
① Since its introduction, NC technology has found many applications …
数控技术专业英语(第2版)：Unit 1 The History of CNC
machines? Smith: A good question, boy. You know, uh-hm…., NC, or
numerical control, actually refers to the control of a machine tool or any other processing machines by using a series of mathematical information, or numerical data. It means the work of machines is controlled by a numerical control program.
Mary: But what do you mean by overall operation?
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Dialogue
Smith: Uh-huh, by it we mean the general industrial production practice. For example, NC should be adopted whenever there is similar raw material and work parts are produced in various sizes and complex shapes. Those production shops that may have frequent changeovers will surely benefit from NC progr (to Prof. Smith) Excuse me, sir, I’m Tom, one of your students in this class. Could I ask you some questions?
numerical control, actually refers to the control of a machine tool or any other processing machines by using a series of mathematical information, or numerical data. It means the work of machines is controlled by a numerical control program.
Mary: But what do you mean by overall operation?
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Dialogue
Smith: Uh-huh, by it we mean the general industrial production practice. For example, NC should be adopted whenever there is similar raw material and work parts are produced in various sizes and complex shapes. Those production shops that may have frequent changeovers will surely benefit from NC progr (to Prof. Smith) Excuse me, sir, I’m Tom, one of your students in this class. Could I ask you some questions?
《数控应用专业英语》课件第5章
5 FEED FUNCTIONS
F0, 25, 50, 100% F0: allows a fixed feedrate to be set for each axis by parameter No.1421. For detailed information, refer to the appropriate manual of the machine tool builder.
·Feed functions (ⅰ) Rapid traverse. When the positioning command (G00) is specified, the
tool moves at a rapid traverse feedrate set in the CNC. (ⅱ) Cutting feed. The tool moves at a programmed cutting feedrate.
5 FEED FUNCTIONS
5.3 CUTTING FEED
Feedrate of linear interpolation (G01), circular interpolation (G02, G03), etc. are commanded with numbers after the F code.
5 FEED FUNCTIONS
Fig.5.3(c) Feed per revolution
5 FEED FUNCTIONS
CAUTION When the speed of the spindle is low, feedrate
fluctuation may occur. The slower the spindle rotates, the more frequently feedrate fluctuation occurs.
《数控技术应用专业英语》(第二版)课件 (8)
数控技术应用专业英语
大连理工大学出版社
1.The General of Sinker EDM
（1）The basic principle of sinker EDM （1）电火花成型加工原理 Sinker electrical discharge machining（sinker EDM），
数控技术应用专业英语
大连理工大学出版社
数控技术应用专业英语
大连理工大学出版社 李桂云 冯艳宏主编
数控技术应用专业英语
大连理工大学出版社
Learning Situation 3 CNC Electrical Discharge Machining
Task 1 CNC Sinker EDM Machine
also known as Die -Sinker EDM and Die -EDM， is that the electrode and workpiece are separately connected to the two poles of pulse power supply， the pulse power supply generates an electrical potential between the two parts. 电火花成型加工（Sinker EDM）也被 称为Die -Sinker EDM和Die -EDM，是 将电极和工件分别连接到脉冲电源的两
这种不间断的脉冲放电将电极的形状复制到 工件上以实现成型加工。
数控技术应用专业英语
大连理工大学出版社
1.The General of Sinker EDM
（2）Characteristics of sinker EDM （2）电火花成型加工特点 Some of the advantages of sinker EDM include: 电火花成型加工的优点有: ·Complex shapes that would otherwise be difficult to
数控技术应用专业英语LS1-5
数控技术应用专业英语
Learning Situation 1
CNC Lathe Machining
Task 5 Measuring tools for Lathe Workpiece Inspection
数控技术应用专业英语 Task 5 Measuring tools for Lathe Workpiece Inspection
（1）Vernier caliper 1）Components of vernier caliper internal jaws 内测量爪 external jaws 外测量爪 locking screw锁紧螺钉 depth measuring blade 深度尺
Task 5 Measuring tools for Lathe Workpiece Inspection monly Used Measuring Tools
Task 5 Measuring tools for Lathe Workpiece Inspection monly Used Measuring Tools
2）Reading outside micromete 外径千分尺的读数 Read on the sleeve 读固定套筒上的数值
2）Reading vernier caliper游标卡尺的读数
Read the whole number on the main scale 在主尺上读整数 Read the decimal on the vernier scale 在游标尺上读小数 Add it all up 相加
Task 5 Measuring tools for Lathe Workpiece Inspection monly Used Measuring Tools
Learning Situation 1
CNC Lathe Machining
Task 5 Measuring tools for Lathe Workpiece Inspection
数控技术应用专业英语 Task 5 Measuring tools for Lathe Workpiece Inspection
（1）Vernier caliper 1）Components of vernier caliper internal jaws 内测量爪 external jaws 外测量爪 locking screw锁紧螺钉 depth measuring blade 深度尺
Task 5 Measuring tools for Lathe Workpiece Inspection monly Used Measuring Tools
Task 5 Measuring tools for Lathe Workpiece Inspection monly Used Measuring Tools
2）Reading outside micromete 外径千分尺的读数 Read on the sleeve 读固定套筒上的数值
2）Reading vernier caliper游标卡尺的读数
Read the whole number on the main scale 在主尺上读整数 Read the decimal on the vernier scale 在游标尺上读小数 Add it all up 相加
Task 5 Measuring tools for Lathe Workpiece Inspection monly Used Measuring Tools
数控技术专业英语(第2版)：Unit 5 Introduction to PLC
它们被用于高速数据处理、高速数据通信、高级计算(PLC) 机语言支持，当然也用于基本过程控制。 “of course”为插 入语，起附加说明的作用，即相当于 “and they are used for basic process control.”
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Text
Programmable logic controllers (PLCs) were first introduced in 1968 as a substitute for hardwired relay panels. The original intent was to replace a mechanical switching device (relay modules). However, since 1968, the capabilities of the PLCs were to replace relay panels, modern PLCs have many more functions. Their use extends from simple process control to manufacturing system controls and monitoring.
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Fig.5-1
Fig.5－1 Application of PLC( Controls Step/Servo Motor) 返回
Text
PLCs vary in size and power. A large PLC can have up to 10000 I/O points and support all the functions discussed earlier. There are also expansion slots to accommodate PC and other communication devices. For many applications, a small PLC is sufficient. Fig.5-2 shows a small PLC. It has 16 I/O points and a standard RS-232 serial communication port. The speed of PLC is constantly improving, even the low-end PLCs perform at high speed. One to two microsec / kbyte of memory speed is very common.
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Text
Programmable logic controllers (PLCs) were first introduced in 1968 as a substitute for hardwired relay panels. The original intent was to replace a mechanical switching device (relay modules). However, since 1968, the capabilities of the PLCs were to replace relay panels, modern PLCs have many more functions. Their use extends from simple process control to manufacturing system controls and monitoring.
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Fig.5-1
Fig.5－1 Application of PLC( Controls Step/Servo Motor) 返回
Text
PLCs vary in size and power. A large PLC can have up to 10000 I/O points and support all the functions discussed earlier. There are also expansion slots to accommodate PC and other communication devices. For many applications, a small PLC is sufficient. Fig.5-2 shows a small PLC. It has 16 I/O points and a standard RS-232 serial communication port. The speed of PLC is constantly improving, even the low-end PLCs perform at high speed. One to two microsec / kbyte of memory speed is very common.
数控专业英语 PPT
❖ 我们可将电能储存在由一绝缘介质隔开的两块金属极 板内。我们称这样的装置为电容器，称其储存电能的 能力为电容。我们用法拉为单位来测量电容。
❖ 不难看出，上面短文中三句的主语均为we。所包含的 信息既少，又累赘重复，佶屈聱牙。科技文章很少采 用这种写法。
❖ Electrical energy can be stored in two metal plates separated by an insulation medium. Such a device is called a capacitor, or a condenser, and its ability to store electrical energy is termed capacitance. It is measured in farads.
6. inclined adj. 倾向与…的；喜爱…的 I feel inclined to go out for dinner today. I am inclined to believe in you.
Ⅲ. Detail Study 1. computerized numerical control (CNC)
❖ 另外，CAD/CAM 软件与数控机床之间的联系日 益紧密，CAD/CAM软件能自动将设计结果翻译 成机床的计算机控制器能接受的指令，这大大提 高了生产率。
大家学习辛苦了，还是要坚持
继续保持安静
Ⅲ. 如何学习科技英语
1.掌握一定的专业基础。
2.牢记本专业常用名词词组和专业词汇。 machine tools 机床
❖ There are different ways in which we can change energy from one form into another.
《数控应用专业英语》课件第2章
If a duplicate axis name is specified in the parameter, operation is enabled only for the axis specified first.
2 CONTROLLED AXES
NOTE In two path control, axis information displayed on the
tools?
2 CONTROLLED AXES
The least command increment is either metric or inch depending on the machine tool. Set metric or inch to the parameter INM (No.100＃0).
2 CONTROLLED AXES
Limitations ·Default axis name
When a default axis name (1 to 8) is used, operation in the MEM mode and MDI mode is disabled. ·Duplicate axis names
When this parameter is set to 0 or a character other than the valid characters is specified, an axis name from 1 to 8 is assigned by default.
In two path control, the basic three axis names are fixed to X, Y, and Z for either path, but the name of an additional axis can be selected from A, B, C, U, V, and W by parameter 1020. Duplicate axis names cannot be used in the same path, but the same axis name can be used in different paths.
2 CONTROLLED AXES
NOTE In two path control, axis information displayed on the
tools?
2 CONTROLLED AXES
The least command increment is either metric or inch depending on the machine tool. Set metric or inch to the parameter INM (No.100＃0).
2 CONTROLLED AXES
Limitations ·Default axis name
When a default axis name (1 to 8) is used, operation in the MEM mode and MDI mode is disabled. ·Duplicate axis names
When this parameter is set to 0 or a character other than the valid characters is specified, an axis name from 1 to 8 is assigned by default.
In two path control, the basic three axis names are fixed to X, Y, and Z for either path, but the name of an additional axis can be selected from A, B, C, U, V, and W by parameter 1020. Duplicate axis names cannot be used in the same path, but the same axis name can be used in different paths.
数控技术专业英语 PPT课件
11
• 将……扩展成 expand…..into • 焊接 welding • 汽车工业 automotive industry • 器具, 器械, 装置，（家用）电器 appliance • 模具 die • 原始设备制造商 OEM original equipment manufacturer • 立式铣床 Vertical milling machine • 原型 Prototype • 快速原型制造 Rapid prototyping manufacturing • 弯曲 Bending 冲压 Stamping
computers to coordinate the operation of a number
of CNC machines. Ultimately, it may be possible to
coordinate an entire factory in this manner.
3
三、专业知识点 • 数控系统的组成 四、练习
6
• 精度 Accuracy • 转塔头 Turret head • 卧式加工中心 Horizontal spindle machining center • 立式加工中心 Vertical spindle machining center
7
二、重难点句
• Machining center greatly increased production rates because more operations could be performed on a workpiece in one setup.
10
• 冷却液 coolant • 柔性制造 flexible manufacturing • 工件夹紧 workholding • 小批量 small part lots • 中小批量生产 middle or small batch production • 大批量生产 mass production • 装配 assembly • 详细目录, 存货清单,（商店的）存货，库存 inventory • 第一次/第二次工业革命 the first/second industrial revolution
• 将……扩展成 expand…..into • 焊接 welding • 汽车工业 automotive industry • 器具, 器械, 装置，（家用）电器 appliance • 模具 die • 原始设备制造商 OEM original equipment manufacturer • 立式铣床 Vertical milling machine • 原型 Prototype • 快速原型制造 Rapid prototyping manufacturing • 弯曲 Bending 冲压 Stamping
computers to coordinate the operation of a number
of CNC machines. Ultimately, it may be possible to
coordinate an entire factory in this manner.
3
三、专业知识点 • 数控系统的组成 四、练习
6
• 精度 Accuracy • 转塔头 Turret head • 卧式加工中心 Horizontal spindle machining center • 立式加工中心 Vertical spindle machining center
7
二、重难点句
• Machining center greatly increased production rates because more operations could be performed on a workpiece in one setup.
10
• 冷却液 coolant • 柔性制造 flexible manufacturing • 工件夹紧 workholding • 小批量 small part lots • 中小批量生产 middle or small batch production • 大批量生产 mass production • 装配 assembly • 详细目录, 存货清单,（商店的）存货，库存 inventory • 第一次/第二次工业革命 the first/second industrial revolution
数控技术及其应用(第2版)PPT全套课件
（2）中档数控机床
其技术指标常为：脉冲当量0.005～0.001 mm，快进速度15～24 m/min，伺 服系统为半闭环直流或交流伺服系统，有较齐全的CRT显示，可以显示字符 和图形，人机对话，自诊断等，主CPU一般为16位或32位。
（3）高档数控机床
其技术指标常为：脉冲当量0.001～0.0001 mm，快进速度15～100 m/min， 伺服系统为闭环的直流或交流伺服系统，CRT显示除具备中档的功能外，还 具有三维图形显示等，主CPU一般为32位或64位。
1.4 数控机床和数控系统的发展
1．高速、高精度化 2．开放式 3．智能化
（1）在数控系统中引进自适应控制技术 （2）设置故障自诊断功能 （3）具有人机对话自动编程功能 （4）应用图像识别和声控技术
4．复合化 5．高可靠性 6．多种插补功能
7．友好的人机界面 （1）现代数控机床具有丰富的显示功能。 （2）丰富的编程功能。 （3）方便的操作。 （4）多种方便编程的固定循环。 （5）系统具有多种管理功能 （6）PLC程序编制方法的增加。 （7）帮助功能。
目前，选用数控设备主要考虑3种因素：即单件、中小批量 的生产；形状比较复杂，精度要求高的加工；产品更新频繁， 生产周期要求短的加工。
A 图纸
C
D
E
B
F
控制
伺服
数控
计算机
机构
设备
数控设备的一般形式
1.1.2 数控机床及其加工原理
数字控制机床（Numerical Control Machine Tools） 简称数控机床，这是一种将数字计算技术应用于机床的控 制技术。它把机械加工过程中的各种控制信息用代码化的 数字表示，通过信息载体输入数控装置。经运算处理由数 控装置发出各种控制信号，控制机床的动作，按图样要求 的形状和尺寸自动地将零件加工出来。
其技术指标常为：脉冲当量0.005～0.001 mm，快进速度15～24 m/min，伺 服系统为半闭环直流或交流伺服系统，有较齐全的CRT显示，可以显示字符 和图形，人机对话，自诊断等，主CPU一般为16位或32位。
（3）高档数控机床
其技术指标常为：脉冲当量0.001～0.0001 mm，快进速度15～100 m/min， 伺服系统为闭环的直流或交流伺服系统，CRT显示除具备中档的功能外，还 具有三维图形显示等，主CPU一般为32位或64位。
1.4 数控机床和数控系统的发展
1．高速、高精度化 2．开放式 3．智能化
（1）在数控系统中引进自适应控制技术 （2）设置故障自诊断功能 （3）具有人机对话自动编程功能 （4）应用图像识别和声控技术
4．复合化 5．高可靠性 6．多种插补功能
7．友好的人机界面 （1）现代数控机床具有丰富的显示功能。 （2）丰富的编程功能。 （3）方便的操作。 （4）多种方便编程的固定循环。 （5）系统具有多种管理功能 （6）PLC程序编制方法的增加。 （7）帮助功能。
目前，选用数控设备主要考虑3种因素：即单件、中小批量 的生产；形状比较复杂，精度要求高的加工；产品更新频繁， 生产周期要求短的加工。
A 图纸
C
D
E
B
F
控制
伺服
数控
计算机
机构
设备
数控设备的一般形式
1.1.2 数控机床及其加工原理
数字控制机床（Numerical Control Machine Tools） 简称数控机床，这是一种将数字计算技术应用于机床的控 制技术。它把机械加工过程中的各种控制信息用代码化的 数字表示，通过信息载体输入数控装置。经运算处理由数 控装置发出各种控制信号，控制机床的动作，按图样要求 的形状和尺寸自动地将零件加工出来。
数控技术应用专业英语LS1-2
Task 2 Process Analysis of CNC Lathe Machining 2.Preparing for process analysis
A typical composition of cemented carbide is 85 to 95 percent carbides of tungsten and the remainder is cobalt. 典型的硬质合金的 组成是85%～95%的碳化钨， 其余是钴。 Cemented carbides are the most widely used tool materials in the machining industry. 硬质合金是机加工中经常使用的一种刀具材料。
Task 2 Process Analysis of CNC Lathe Machining 1.Reading Part Drawing
Geometric tolerance Geometric tolerance is used to specify the features of shape and position. 形位公差用来指定形状和位置特征。
Task 2 Process Analysis of CNC Lathe Machining 2.Preparing for process analysis
2）Application of turning tools车刀的应用 External turning tool is used for turning cylinder， taper and facing surface. 外圆车刀用于切削圆柱面、锥面和端面; Groove tool is used in parting the workpiece or cutting off the workpiece. 切槽刀用于分割工件和切断工件;
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数控技术应用专业英语
大连理工大学出版社
1.The General of CNC Machining Center
For vertical machining center， the best suitable types of workpiece are flat parts， either mounted to the fixture on the table or hold in a machine vise or a chuck.
大连理工大学出版社
1.The General of CNC Machining Center
Machining centers are classified as vertical）， horizontal and universal machining center.
加工中心可以分为立式、卧式和万能加工中心三种。
在一台加工中心上可以实现钻孔、铰孔、镗孔、铣削、轮廓加工和攻 螺纹等多种操作，这样就减少了对单个普通机床的需求，从而减少了 设备的成本和劳动力需求。
Even a relatively unskilled operator can often attend two machining centers and sometimes more.
Machining centers have been defined as multifunction CNC machines with automatic tool changing capabilities and tool magazine.
数控加工中心是具有自动换刀功能和刀库的多功能数控机 床。
加工中心的主要优势是提高了生产率并扩大了加工范围。
数控技术应用专业英语
大连理工大学出版社
1.The General of CNC Machining Center
The ability to perform drilling， reaming， boring， milling， contouring and threading operations on a single machine eliminates the need for a number of individual machines， thus reducing cost of equipment and labor requirements.
n.弹性，灵活性
saddle ['sæ dl]
n.座板，滑动座架
feedback ['fi:dbæ k]
n.回应，反馈，回馈
sophisticated [sə'fisti,keitid] adj.复杂的，精密的
adaptor [ə'dæptə]
n.衔接头，转接器
数控技术应用专业英语
大连理工大学出版社
Task 1 Basic Knowledge of CNC Machining Center
1.The General of CNC Machining Center
ponents of the CNC Machining Center
数控技术应用专业英语
大连理工大学出版社
1.The General of CNC Machining Center
立式加工中心最适合加工平板类零件，加工时将工件通过 夹具安装在工作台上，或将工件装夹在机用虎钳上或卡盘 上。
The workpiece that requires machining on two or more faces in a single setup on a horizontal machining center. A good example is pump housing or boxy workpieces.
tool magazine
刀具库
versatility [,və:sə'tiliti]
n.多用途，多功能
ream [ri:m]
vt.扩大，挖通，挤出
boring ['bɔ:riŋ]
adj.钻孔用的 n.钻孔，钻屑
innovation [,inəu'veiʃən] n.革新，改革，创新
flexibility [,fleksə'biliti]
一个经验不多的工人，通常就能同时操作两台或者更多台加工中心机 床。
Most workpieces can be completed on a single machining center， often with one setup.
大多数工件通常能在一台加工中心上一次装夹完成全部加工。
数控技术应用专业英语
数控技术应用专业英语
大连理工大学出版社
数控技术应用专业英语
大连理工大学出版社 李桂云 冯艳宏主编
数控技术应用专业英语
大连理工大学出版社
Learning Situation 2 CNC Machining Center
Task 1 Basic Knowledge of CNC Machining Center
Since their introduction in the late 1950s， they have become one of the most common of all cutting machines.
加工中心自20世纪50 年代后期出现以来，已经成为最普 遍的切削机床之一。
Increased productivity and versatility are major advantages of machining centers.
数控技术应用专业英语
大连理工大学出版社
Task 1 Basic Knowledge of CNC
Machining Center
Part A
New Words and Phrases
Reading Material
数控技术应用专业英语
大连理工大学出版社
New Words and Phrases
卧式加工中心适合加工在一次装夹中有两个或更多表面被 加工的零件，比较好的例子是加工泵体或箱体类零件。