數(shù)控專業(yè)畢業(yè)設(shè)計(jì)外文翻譯6

1、<p><b>　　外文翻譯</b></p><p>　　The numerical control technology</p><p>　　Numerical control technology is refers with digital, the writing and the mark composition digital command re

2、alizes one or the multi-Taiwan mechanical device movement control technology.It controls usually is the position, the angle, the speed and so on the mechanical quantity and flows to the related switch quantity with the m

3、echanical energy.The numerical control production relies on data carrier and the binary mode data operation appearance.In 1908, perforation sheet metal exchange type data c</p><p>　　The numerical control eng

4、ine bed is one kind of technical denseness and the automaticity very high integration of machinery processing equipment, is synthesizes the application computer, the automatic control, the automatic detection and precise

5、…The processing precision is high, the quality easy to guarantee, the prospects for development are extremely broad, therefore the grasping numerical control lathe processing programming technology especially is importan

6、t.</p><p>　　Now, the numerical control technology also is called the computer numerical control technology, at present it is uses the computer realization digital process control the technology.This kind of

7、technology according to the control procedure which stores beforehand carries out with the computer to the equipment the control function.</p><p>　　Machine tool numerical control system</p><p>　

8、　1 .Applies PC resource broadly</p><p>　　The microcomputer the personal computer (PC) is called in recent years develops very quickly , the large-scale integrated circuit makes the technology high speed send

9、ing out speed , feasible PC hardware structure composes very small. Host CPU operation speed is more and more high. The IPC386 basic frequency is 33 MHz , IPC486 , 586's basic frequency may amount to 50 ~ 120 MHz, re

10、cently Intel gallop the processor (Pentium) , basic frequency already amount to 450 MHz. Memory capacities are also ve</p><p>　　That in development of software aspect, OS, the Windows application, feasible P

11、C operation are simpler and convenient especially is penetrating. From minitype, machine , the workstation build the CAD/CAM software in large amount to PC transplanting , Sanweitu display and handicraft data base on PC.

12、 The opening to the outside world plus PC , the technician who attracts a great quantity have thrown into the software exploitation , feasible PC software resource has enriched extremely.</p><p>　　2. Miniatu

13、rizes to satisfy the integration of machinery with electronics request</p><p>　　With the development of microelectronics technology, the large-scale integrated circuit integration level is more and more high

14、 , volume is more and more small. The numerical control equipment factory adopt grand scale IC and adopt the surface installation handicraft (SMT), have realized three-dimensional body assembling , have equipped entire C

15、NC with the request composing very small, to adapt to machinery manufacturing industry integration of machinery with electronics.</p><p>　　3..Improves man-machine interface , convenience of customers is put

16、into use</p><p>　　For making operation person can handle very easy to have numerical control machine tool in hand, the numerical control equipment childbirth factory effort field improves man-machine interfa

17、ce , facilitates a programming , adopt an interactive mode to the full , makes a consumer be put into use going to the lavatory, if the Spain FAGOR company gives birth to a child FAGOR 8050 series , the editors who adopt

18、 the each other dyadic editor program to guide system , simplification procedure, use the b</p><p>　　4 .Raises numerical control system product complete set</p><p>　　Numerical control system inc

19、ludes the CNC device , the chief axis and feeds the servo driving device, and as well as the chief axis electric motor, feeds an electric motor than pertinent detecting couples back a component. A numerical control syste

20、m function goodness and badness is that the function is closely related to as said or narrated above each links. For the need satisfying the machine tool consumer factory, the numerical control equipment childbirth facto

21、ry takes numerical control produ</p><p>　　5. Research and development intelligence type numerical control system</p><p>　　So-called intelligence type numerical control system , morning are in th

22、e eighties initial stage already begin to study. FS15 series that the FANUC company debuted at that time, will be called AI (artificial intelligence) CNC system , be been to have adopt the expert system in the field of m

23、alfunction diagnose mainly. System makes use of so-called reasoning software , analyses and seeks malfunction cause according to the experience storing in knowledge base in system. The nearest FANUC company g</p>

24、<p>　　Subsequently industrial technology desire for development, fabrication process quicker, easier, use fit in with give birth to a child need, one kind be called intelligence closed cycle treating (Intelligent Cl

25、osed-Loop Processes ICLP) technology adopt. This technology is to make use of a sensor to gain timely information, to strengthen a maker getting the best product ability. Pursue 1 it is intelligence closed cycle to proce

26、ss a model.]</p><p>　　6 .Needs the numerical control product good for sale , develops according to the marketplace</p><p>　　The high and new technology is a direction that numerical control syst

27、em develops , the product developing numerical control good for sale on the other hand is also to adapt to the need that the marketplace develops. Our country is the developing country , economy type numerical control sy

28、stem has the vast marketplace in our country. The cheap numerical control system therefore, developing high performance , price, satisfies our country marketplace needing to be a highly significant's. At presen</p

29、><p>　　7.Develops the new numerical control product</p><p>　　With the development of machinery processing technology, correct numerical control machine tool the function and satisfies these to come

30、 to adapt to demanding to need the product developing a few new integration of machinery with electronics numerical control more and more high , urgent demand.</p><p>　　By the same token, move for realizing

31、high speed , demand to develop "the straight line electric motor " , be used in drive working table linear motion directly. Straight line electric motor that the Japan FANUC company produces, displacement speed

32、 can reach 100 m/min. The Japanese THK company , German INDRAMAT company , SIEMENS company are similar to a product all in developing and producing this.</p><p>　　To sum up ,development of numerical control

33、technology is that the technology develops need of developing productions synchro , being also basis at the same time but develop with the modern computer art , electron. Now the numerical control technology is already m

34、ature , develops with expanding very much more quickly. Future CNC system will may make machinery easier to use , cheaper. </p><p>　　Numerical Control of Production Equipment</p><p>　　From the s

35、cientific and commercial point of view，Digital control technology in the development of bulk processing in the manufacturing sector has a major achievement。It promotion and expansion of the NC technologies, including：<

36、;/p><p>　　Direct Digital Control Computer numerical control</p><p>　　Direct Digital Control</p><p>　　Direct digital control can be defined as many machines directly connected to the c

37、omputer by real-time monitoring of the computer manufacturing system. DNC scallops readers were ignored, thereby increasing the reliability of the system. Part of the procedure to replace tapes from the computer memory c

38、ard reader was sent to work directly in the machine.</p><p>　　All in all, a computer can be controlled at least 100 or more different machines. (A commercial DNC system in 1970 that has been controlled durin

39、g the 256 workstations capacity). DNC computer was designed to work on each machine to provide guidance, when machines need to control orders, they will immediately communicate with it.</p><p>　　Figure 2-3 t

40、hat the general structure of the DNC. System consists of four components. ? CPUs ? memory, storage, NC part of the process ? Signal Transmission ? Worker</p><p>　　When necessary, the computer from the da

41、ta repository for a degree / instructions to work with machines, it also received at the same time work for feedback. This two-way flow of data simultaneously, which means that each machine at the request of instructions

42、 will be immediately respond. Similarly, the computers have also always ready to accept information from the machines and to respond. DNC system is the outstanding characteristic of the real-time computer always maintain

43、 a large number of s</p><p>　　(2) computer numerical control</p><p>　　Since DNC intervention, computer technology has changed dramatically, the actual size and digital computer lines have been o

44、bvious at the same time simplify the calculation of its capability has been substantially reinforced. In the digital control, the outcome of the traditional reception in the NC MCU-based control units were replaced by di

45、gital computers. Initially small computer was used in 1970, and the further development of small computer, making today's micro-computer has replaced the sm</p><p>　　DNC computer to transmit data to a la

46、rge number of machines and receive data from, and CNC can only control one or a small number of machines.</p><p>　　DNC computer can be remotely controlled, and the only short-range computer CNC control.</

47、p><p>　　DNC software not only as a single product to be developed, but also as an important manufacturing data management system. DNC software development work to increase the working capacity.</p><p

48、>　　Computer digital control system versions such as the overall structure of Figure 2.5. Plans can be seen by Reading with control of access to the system for the first part, in this regard, computer numerical control

49、 system is similar to the traditional appearance of a digital control system However, the scheme used in computer numerical control system is different. in the traditional digital control system, through the perforated p

50、aper for the Reading with a working part of each volume cycle. Mic</p><p>　　(3) characteristics of CNC control system</p><p>　　In front of the machine control described in the digital control of

51、 the characteristics and importance. CNC common in the rigid procedures micro-controller functions by adding additional features. Some of these include the following:</p><p>　　1) be able to store a number of

52、 procedures. With the progress of computer technology, many computer updated digital control system strong enough storage capacity to more single process. Such a change storage capacity to store a large number of procedu

53、res or short-or medium-size procedures. 2) the use of floppy disks. In the large-scale manufacturing sector, the process in the floppy disk usage on the rise. Capacity of the previous eight times. Equivalent to the capa

54、city of a floppy disk or clos</p><p>　　3) in the work of editing procedures. Procedures for the revision of some mistakes, CNC system allows the memory to modify procedures table. Therefore, the test procedu

55、re and makes machines that can read better than to return to the design room to amend scallops. Apart from the revised procedures, mechanical cutting cycle in the state which can be edited to achieve optimum cycle. Laws

56、and procedures to achieve optimization, scallops perforation and to obtain the edited version of scallops can be</p><p>　　4) fixed cycle and design procedures. CNC enhanced control over the computer storage

57、capacity and capabilities. That the frequent use of the storage processing cycle procedures can be visited from the list. Instead of a coding process to enter each table in the special directive was written into the sche

58、dule refers to the cycle be executed. Some cycles of operation, the need to set specific parameters. For example, a bolt hole, the bolt hole diameter hole in space, and other parameters must be s</p><p>　　5)

59、 interpolation. Some interpolation because of the requirements of the programme only in the implementation of a CNC system. To linear and circular interpolation, normally takes to access control unit. Spiral, and the squ

60、are-shaped parabolic interpolation usually in a preservation program prepared to run.</p><p>　　6) the importance of positioning equipment. For a specific work in the machine settings, including installation

61、and proofreading work table fixture. In order to machine the workpiece spindle and alignment, which must be completed. Alignment of CNC system software to work its possible options to achieve specific characteristics. Be

62、en set by the location, operators need to determine the fixture table deviations. Machine Tool Spindle fixture will be the location for the creation of reference points</p><p>　　7) Tool length compensation.

63、This is similar to the aforementioned features, but applicable to the work tool length and diameter. In the old design of the controller, tool size must be fully consistent with the definition of the procedures in the de

64、sign path. A path to ensure that the tool is designed with the requirements of the CNC controller. One of the ways is in the MCU in the importation of the actual size of the current tool, which may be the size of the ini

65、tial preparation and the differ</p><p>　　8) diagnosis. CNCC many modern machines with detection machine tools and MCU operation of a fault or whether signs of the fault line diagnostic capabilities. When fai

66、lures occur or impending failure, the controller monitors will show the image of the corresponding information. System stop working or remain the severity of the fault will be decided. Another diagnostic capabilities to

67、help repair personnel use to decide whether to stop the use of machine tools. Failure occurred when one of the big</p><p>　　9) communications interface. According to interface connector of the favorable tren

68、ds and the development of the current network equipment, most of the modern CNC controllers are equipped with a standard link interface, ease of machine tools and other computer and computer-driven link.</p><p

69、>　　The numerical control programming</p><p>　　Numerical control engine bed is one kind of highly effective automation processing equipment, it according to the processing procedure, automatic to is proces

70、sed strictly the work piece to carry on the processing.We use in from the numerical control system exterior input the procedure which processes being called directly the numerical control processing procedure, the Jian C

71、hengwei numerical control procedure, it is the engine bed numerical control system application software.</p><p>　　The numerical control system type is many, they use the numerical control program language ru

72、le and the form are also different, when in view of some numerical control engine bed establishment processing procedure, should strictly carry on the programming according to the engine bed programming handbook in stipu

73、lation. </p><p>　　The establishment numerical control processing procedure is uses the numerical control engine bed an important technical work, not only the ideal numerical control procedure should guarante

74、e processes conforms to the components pattern request qualified components, but also should enable the numerical control engine bed the function to obtain the reasonable application and the full display, enables the num

75、erical control engine bed the security, reliable, the highly effective work. </p><p>　　1、Numerical control programming content and step </p><p>　　2、The numerical control programming is refers fr

76、om the components blueprint to obtains the numerical control processing procedure the completely work process.</p><p>　　3、The programming work mainly includes: </p><p>　　(1) Analysis components

77、 pattern and the formulation craft plan </p><p>　　This work content includes: Carries on the analysis to the components pattern, is clear about the processing the content and the request; Determination proce

78、ssing plan; Choice suitable numerical control engine bed; The choice or designs the cutting tool and the jig; The determination reasonable feeds the route and the choice reasonable cutting specifications and so on. This

79、work requirement programmers can to the components pattern technical characteristic, the geometry shape, the size and the t</p><p>　　(2) Mathematics processing </p><p>　　After had determined the

80、 craft plan, needs according to the components geometry size, the processing route and so on, to calculate the cutting tool center path, obtains the knife bit data. The numerical control system has the straight line inte

81、rpolation and the circular arc interpolation function generally, regarding the processing the simple plane components which is composed by the circular arc and the straight line, only needs to calculate in the components

82、 outline the neighboring geometry el</p><p>　　(3) Compilation components processing procedure </p><p>　　After completes the above craft processing and the value computation work, then compiles t

83、he components processing procedure.The programming personnel uses the numerical control system the program directive, according to the stipulation procedure form, compiles the processing procedure section by section. The

84、 programming personnel should to the numerical control engine bed function, the program directive and the code is extremely familiar, can compile the correct processing procedure. </p><p>　　(4) Programmed ch

85、eck will compile the processing procedure input numerical control system, might control the numerical control engine bed the processing work.Generally before official processing, must carry on the examination to the proc

86、edure.Usually may use the engine bed spatial revolution the way, inspects the engine bed movement and the path accuracy, test routine. The high components regarding the shape, also may use the aluminum, the plastic or th

87、e paraffin wax and so on easy to cut the ma</p><p>　　Numerical Control of Machining Process</p><p>　　Numerical control of maching tools by computers has made great advance in recent years. Gener

88、ally, automatic tools are efficient and accurate when large quantities of parts of the same shape are required. but changing from one automatic cycle to another is a long and expensive process and would only be carried o

89、ut of a long run. But these are many examples when only a few parts are require and it is in such word that the computer-controlled machine is valuable.</p><p>　　These are two type of computer-digital and an

90、alogue. A digital computer works with numbers given in digital forms, a digital being one of a certain set of symbols used to show numbers. It is the digital computer which is used in electronic data processing. The anal

91、ogue computer is based on an analogy of quality. It deals with physical qualities and not numbers.</p><p>　　In a digital control system information from a drawing is put on a disc which is put onto a compute

92、r which computer from the information to the continous motion of the cutting tool. The output is put on a disc which is put into the machine-tool control unit when require. One computer serve a number of machines. Disc c

93、an be tored and used any number of times in future cases, simply by replaying them if the same parts are wanted again. For best results , the electronic control equipment and the ma</p><p>　　This method has

94、also been applied to the control of oxygen cutting of steel plates. When orregular shapes are require, as in ship building, it has been the practice to make a model and to follow its outline by hand control, a method whi

95、ch does not always give accurate results. Again, information is processed by a special computer which then prepares a disc for use in the control console of the cutting machine. With this disc the machine can automatical

96、ly cut plates, of complicated shapes very ac</p><p>　　CNC and DNC</p><p>　　A brief mention abuts computerized numberical control (CNC) and direct numberical control (DNC) is desirable at this st

97、age. This should not be confused whit computer aided programming associated with NC. The latter is essentially off-line the programs re prepared on the computer independent of the NC machine. The CNC system has a dedicat