38759数控专业英语
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机床可以手工编程或在计算机的帮助下编程。手工编程是 由人工完成的，而计算机辅助编程（CAP）是通过计算机完 成的.
Sometimes a manual program is entered into the machine’s controller via its own keypad. This is known as manual data input (MDI). This text will focus on manual part programming.
换句话说，机床的计算机取代穿孔带读入和执行程序，这就是 当今正在制造的计算机数字控制（CNC）机床。
The primary focus of this text is the MDI programming of computer numerical control (CNC) machinery.
本文的着重点是计算机数字控制（CNC）机床的手动数据输入 方式（MDI）编程。
数控专业英语 ppt 课件
In 1947, John Parsons of the Parsons Corporation, began experimenting with the idea of using three-axis curvature data to control machine tool motion for the production of aircraft components. In 1949, Parsons was awarded a U.S. Air Force contract to build what was to become the first numerical control machine.
数控专业英语 ppt 课件
Machines may be programmed manually or with the aid of a computer. Manual programming is called manual part programming; programming done by a computer is called computer aided programming (CAP).
计算机辅助编程语言是指，零件编程员应用一 套通用的“混杂英语”命令编写NC程序，然后由 计算机将其翻译成机器代码和制成穿孔带。
句中using a set of universal “pidgin English” commands是现在分词短语做状语，which引导的 非限制性定语从句修饰NC program。
早期的数控机床能复制穿孔卡和穿孔带，其中 穿孔带后来成为一种更通用的介质，但是由于更改 和编辑纸带费时费力，后来使用计算机进行辅助编 程。应用计算机编程有两种形式：计算机辅助编程 语言和直接数字控制（DNC）。
数控专业英语 ppt 课件
Computer aided programming languages allowed a part programmer to develop an NC program using a set of universal “pidgin English” commands, which the computer then translated into machine codes and punched into the tape.
简单地说，数控机床是一种通过代码指令自动地沿着预编 程轨迹定位的机床，这里的关键词是“预编程”和“代码化 ”。
数控专业英语 ppt 课件
Someone has to determine what operations the machine is to perform and put that information into a coded form that the NC control unit understands before the machine can do anything. In other words, someone has to program the machine.
欢迎来到数控世界。因为数字控制（NC）使制造系统柔 性更强，所以它已广泛应用于工厂车间。
In simple terms, a numerical control machine is a machine positioned automatically along a preprogrammed path by means of coded instructions. The key words here are “preprogrammed” and “coded”.
Direct numerical control involved using a computer as a partial or complete controller of one or more numerical control machines(Fig.11). Although some companies have been reasonably successful at implementing DNC, the expense of computer capability and software and problems associated with coordinating a DNC system renders such systems economically unfeasable for all but the largest companies.
微电子学和微型电脑的发展已经使计算机应用于现代数控机床 的控制装置，并取代了早期用于NC机床的读带机。
In other words, instead of reading and executing the program directly from punched tape, the program is loaded into and executed from the machine’s computer. These machines, known as computer numerical control (CNC) machines, are the NC machines being manufactured today.
还有大家熟知的手动数据输入方式（MDI），它是通过其 自带键盘，将程序输入到机床的控制器。本课将重点讲述手 工编程。
数控专业英语 ppt 课件
Advances in microelectronics and microcomputers have allowed the computer to be used as the control unit on modern numerical control machinery. This computer takes the place of the tape reader found on earlier NC machines.
直接数字控制是指用一台计算机对一台或多台数控机床进行部 分或整个控制。虽然一些公司相当成功地利用DNC，但在计算机 容量，软件和协调DNC系统问题上的花费，使这种系统所获得的 经济价值并不适合所有的公司，而只适合一些大公司。
主句中主语是expense，谓语是renders，由and连接的computer capability ， software ， problems associated with coordinating a DNC system做expense的定语，其中associated with coordinating a DNC system是过去分词短语做problems的定语；but是介词“除 ……之外”的意思。
In 1952, numerical control arrived when MIT demonstrated that simultaneous three-axis movements were possible using a laboratorybuilt controller and a Cincinnati Hydrotel vertical spindle. 1952年，当美国麻省理工学院（MIT）使用实验室制造的控制器 和Cincinnati立式主轴展示三轴联动成功时，表明数字控制时代到 来了。 在when引导的时间状语从句中， that……引导宾语从句，其中 using a laboratory-built controller and a Cincinnati Hydrotel vertical spindle是现在分词短语做状语。 By 1955, after further refinements, numerical control became available to industry. 到了1955年，经过进一步改进后，数控技术应用于工业中。
在机床能够运行之前，操作者必须确定这台机床 完成什么工作，并且将此信息译成数字控制装置可 以识别的代码形式，也就是说，操作者必须对机床 进行编程。
主句中Someone做主语，指代Operator；由and连 接的determine和put是两个并列谓语，其中what…… 引导determine的宾语从句，that……引导form的定语 从句；时间状语从句由before引导。
数控专业英语 ppt 课件
Early NC machines ran off punched cards and tape, with tape becoming the more common medium. Due to time and effort required to change or edit tape, computers were later introduced as aids in programming. Computer involvement came in two forms: computer aided programming languages and direct numerical control (DNC).
Recently a new type of DNC system called distributive numerical control has been developed(Fig1-2). It employs a network of computers to coordinate the operation of a number of CNC machines. Ultimately, it may be possible to coordinate an entire factory in this manner. Distributive numerical control solves some of the problems that exist in coordinating a direct numerical control system.
数控专业英语 ppt 课件
书名：数控专业英语 ISBN： 978-7-111-38759-6 作者：王兆奇 出版社：机械工业出版社 本书配有电子课件
Leabharlann Baidu
数控专业英语 ppt 课件
Unit 1 History of NC （NC的历史）
数控专业英语 ppt 课件
Welcome to the world of numerical control. Numerical control (NC) has become popular in shops and factories because it helps solve the problem of making manufacturing systems more flexible.
1947年，Parsons公司的John Parsons进行了一项 试验，想用空间数据来控制机床运动，以生产飞行 器部件。1949年，Parsons公司与美国空军签订了制 造第一台数控机床的合同。
数控专业英语 ppt 课件
In 1951, the project was assumed by the Massachusetts Institute of Technology. 1951年，美国麻省理工学院承担了这一项目。
Sometimes a manual program is entered into the machine’s controller via its own keypad. This is known as manual data input (MDI). This text will focus on manual part programming.
换句话说，机床的计算机取代穿孔带读入和执行程序，这就是 当今正在制造的计算机数字控制（CNC）机床。
The primary focus of this text is the MDI programming of computer numerical control (CNC) machinery.
本文的着重点是计算机数字控制（CNC）机床的手动数据输入 方式（MDI）编程。
数控专业英语 ppt 课件
In 1947, John Parsons of the Parsons Corporation, began experimenting with the idea of using three-axis curvature data to control machine tool motion for the production of aircraft components. In 1949, Parsons was awarded a U.S. Air Force contract to build what was to become the first numerical control machine.
数控专业英语 ppt 课件
Machines may be programmed manually or with the aid of a computer. Manual programming is called manual part programming; programming done by a computer is called computer aided programming (CAP).
计算机辅助编程语言是指，零件编程员应用一 套通用的“混杂英语”命令编写NC程序，然后由 计算机将其翻译成机器代码和制成穿孔带。
句中using a set of universal “pidgin English” commands是现在分词短语做状语，which引导的 非限制性定语从句修饰NC program。
早期的数控机床能复制穿孔卡和穿孔带，其中 穿孔带后来成为一种更通用的介质，但是由于更改 和编辑纸带费时费力，后来使用计算机进行辅助编 程。应用计算机编程有两种形式：计算机辅助编程 语言和直接数字控制（DNC）。
数控专业英语 ppt 课件
Computer aided programming languages allowed a part programmer to develop an NC program using a set of universal “pidgin English” commands, which the computer then translated into machine codes and punched into the tape.
简单地说，数控机床是一种通过代码指令自动地沿着预编 程轨迹定位的机床，这里的关键词是“预编程”和“代码化 ”。
数控专业英语 ppt 课件
Someone has to determine what operations the machine is to perform and put that information into a coded form that the NC control unit understands before the machine can do anything. In other words, someone has to program the machine.
欢迎来到数控世界。因为数字控制（NC）使制造系统柔 性更强，所以它已广泛应用于工厂车间。
In simple terms, a numerical control machine is a machine positioned automatically along a preprogrammed path by means of coded instructions. The key words here are “preprogrammed” and “coded”.
Direct numerical control involved using a computer as a partial or complete controller of one or more numerical control machines(Fig.11). Although some companies have been reasonably successful at implementing DNC, the expense of computer capability and software and problems associated with coordinating a DNC system renders such systems economically unfeasable for all but the largest companies.
微电子学和微型电脑的发展已经使计算机应用于现代数控机床 的控制装置，并取代了早期用于NC机床的读带机。
In other words, instead of reading and executing the program directly from punched tape, the program is loaded into and executed from the machine’s computer. These machines, known as computer numerical control (CNC) machines, are the NC machines being manufactured today.
还有大家熟知的手动数据输入方式（MDI），它是通过其 自带键盘，将程序输入到机床的控制器。本课将重点讲述手 工编程。
数控专业英语 ppt 课件
Advances in microelectronics and microcomputers have allowed the computer to be used as the control unit on modern numerical control machinery. This computer takes the place of the tape reader found on earlier NC machines.
直接数字控制是指用一台计算机对一台或多台数控机床进行部 分或整个控制。虽然一些公司相当成功地利用DNC，但在计算机 容量，软件和协调DNC系统问题上的花费，使这种系统所获得的 经济价值并不适合所有的公司，而只适合一些大公司。
主句中主语是expense，谓语是renders，由and连接的computer capability ， software ， problems associated with coordinating a DNC system做expense的定语，其中associated with coordinating a DNC system是过去分词短语做problems的定语；but是介词“除 ……之外”的意思。
In 1952, numerical control arrived when MIT demonstrated that simultaneous three-axis movements were possible using a laboratorybuilt controller and a Cincinnati Hydrotel vertical spindle. 1952年，当美国麻省理工学院（MIT）使用实验室制造的控制器 和Cincinnati立式主轴展示三轴联动成功时，表明数字控制时代到 来了。 在when引导的时间状语从句中， that……引导宾语从句，其中 using a laboratory-built controller and a Cincinnati Hydrotel vertical spindle是现在分词短语做状语。 By 1955, after further refinements, numerical control became available to industry. 到了1955年，经过进一步改进后，数控技术应用于工业中。
在机床能够运行之前，操作者必须确定这台机床 完成什么工作，并且将此信息译成数字控制装置可 以识别的代码形式，也就是说，操作者必须对机床 进行编程。
主句中Someone做主语，指代Operator；由and连 接的determine和put是两个并列谓语，其中what…… 引导determine的宾语从句，that……引导form的定语 从句；时间状语从句由before引导。
数控专业英语 ppt 课件
Early NC machines ran off punched cards and tape, with tape becoming the more common medium. Due to time and effort required to change or edit tape, computers were later introduced as aids in programming. Computer involvement came in two forms: computer aided programming languages and direct numerical control (DNC).
Recently a new type of DNC system called distributive numerical control has been developed(Fig1-2). It employs a network of computers to coordinate the operation of a number of CNC machines. Ultimately, it may be possible to coordinate an entire factory in this manner. Distributive numerical control solves some of the problems that exist in coordinating a direct numerical control system.
数控专业英语 ppt 课件
书名：数控专业英语 ISBN： 978-7-111-38759-6 作者：王兆奇 出版社：机械工业出版社 本书配有电子课件
Leabharlann Baidu
数控专业英语 ppt 课件
Unit 1 History of NC （NC的历史）
数控专业英语 ppt 课件
Welcome to the world of numerical control. Numerical control (NC) has become popular in shops and factories because it helps solve the problem of making manufacturing systems more flexible.
1947年，Parsons公司的John Parsons进行了一项 试验，想用空间数据来控制机床运动，以生产飞行 器部件。1949年，Parsons公司与美国空军签订了制 造第一台数控机床的合同。
数控专业英语 ppt 课件
In 1951, the project was assumed by the Massachusetts Institute of Technology. 1951年，美国麻省理工学院承担了这一项目。