外文翻譯-----數(shù)控技術(shù).doc
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外文翻譯-----數(shù)控技術(shù),numerical controlnumerical control(n/c)is a form of programmable automation in which the processing equipment is controlled by means of numbers,letters,and othe...


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NUMERICAL CONTROL
Numerical control(N/C)is a form of programmable automation in which the processing equipment is controlled by means of numbers,letters,and other symbols.The numbers,letters,and symbols are coded in an appropriate format to define a program of instructions for a particular work part or job.When the job changes,the program of instructions is changed.The capability to change the program is what makes N/C suitable for low-and medium-volume production.It is much easier to write programs than to make major alterations of the processing equipment.
There are two basic types of numerically controlled machine tools:point—to—point and continuous—path(also called contouring).Point—to—point machines use unsynchronized motors,with the result that the position of the machining head Can be assured only upon completion of a movement,or while only one motor is running.Machines of this type are principally used for straight—line cuts or for drilling or boring.
數(shù)控是可編程自動(dòng)化技術(shù)的一種形式,通過(guò)數(shù)字、字母和其他符號(hào)來(lái)控制加工設(shè)備。數(shù)字、字母和符號(hào)用適當(dāng)?shù)母袷骄幋a為一個(gè)特定工件定義指令程序。當(dāng)工件改變時(shí),指令程序就改變。這種改變程序的能力使數(shù)控適合于中、小批量生產(chǎn),寫(xiě)一段新程序遠(yuǎn)比對(duì)加工設(shè)備做大的改動(dòng)容易得多。
數(shù)控機(jī)床有兩種基本形式:點(diǎn)位控制和連續(xù)控制(也稱(chēng)為輪廓控制)。點(diǎn)位控制機(jī)床采用異步電動(dòng)機(jī),因此,主軸的定位只能通過(guò)完成一個(gè)運(yùn)動(dòng)或一個(gè)電動(dòng)機(jī)的轉(zhuǎn)動(dòng)來(lái)實(shí)現(xiàn)。這種機(jī)床主要用于直線(xiàn)切削或鉆孔、鏜孔等場(chǎng)合。
數(shù)控系統(tǒng)由下列組件組成:數(shù)據(jù)輸入裝置,帶控制單元的磁帶閱讀機(jī),反饋裝置和切削機(jī)床或其他形式的數(shù)控設(shè)備。
Numerical control(N/C)is a form of programmable automation in which the processing equipment is controlled by means of numbers,letters,and other symbols.The numbers,letters,and symbols are coded in an appropriate format to define a program of instructions for a particular work part or job.When the job changes,the program of instructions is changed.The capability to change the program is what makes N/C suitable for low-and medium-volume production.It is much easier to write programs than to make major alterations of the processing equipment.
There are two basic types of numerically controlled machine tools:point—to—point and continuous—path(also called contouring).Point—to—point machines use unsynchronized motors,with the result that the position of the machining head Can be assured only upon completion of a movement,or while only one motor is running.Machines of this type are principally used for straight—line cuts or for drilling or boring.
數(shù)控是可編程自動(dòng)化技術(shù)的一種形式,通過(guò)數(shù)字、字母和其他符號(hào)來(lái)控制加工設(shè)備。數(shù)字、字母和符號(hào)用適當(dāng)?shù)母袷骄幋a為一個(gè)特定工件定義指令程序。當(dāng)工件改變時(shí),指令程序就改變。這種改變程序的能力使數(shù)控適合于中、小批量生產(chǎn),寫(xiě)一段新程序遠(yuǎn)比對(duì)加工設(shè)備做大的改動(dòng)容易得多。
數(shù)控機(jī)床有兩種基本形式:點(diǎn)位控制和連續(xù)控制(也稱(chēng)為輪廓控制)。點(diǎn)位控制機(jī)床采用異步電動(dòng)機(jī),因此,主軸的定位只能通過(guò)完成一個(gè)運(yùn)動(dòng)或一個(gè)電動(dòng)機(jī)的轉(zhuǎn)動(dòng)來(lái)實(shí)現(xiàn)。這種機(jī)床主要用于直線(xiàn)切削或鉆孔、鏜孔等場(chǎng)合。
數(shù)控系統(tǒng)由下列組件組成:數(shù)據(jù)輸入裝置,帶控制單元的磁帶閱讀機(jī),反饋裝置和切削機(jī)床或其他形式的數(shù)控設(shè)備。
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