機(jī)械類英文翻譯資料(已改無錯字)
2022-07-24 01:49:58 本頁面
【正文】 program, ready to be loaded directly to the CNC machine.* Future of Manual ProgrammingIt may seem that the manual programming is on the decline. In terms of actual use, this is probably true. However, it is necessary to keep in perspective that any puterized technology is based on the already well established methods of manual programming. Manual programming for CNC machines serves as the source of the new technology – it is the very elementary concept on which the puterized programming is based. This knowledge base opens the door for development of more powerful hardware and software applications.The manual programming may be use somewhat less frequently today and eventually will be used even less – but knowing it well – really understanding it – is and always will be the key to control the power of CAM software. Even puters cannot do everything. There are some special programming projects that a CAM software, regardless of the price, may handle to an absolute satisfaction. If the control system can handle it, manual programming is the way to the ultimate control over such a project, when any other methods may not be suitable.Even with a well customized and organized puterized programming system, how can the generated program output be exactly as intended? How can the CNC operator change any part of the program on the machine, without knowing its rules and structure? Successful use of puterized programming requires understanding of manual programming methods.TYPICAL PROGRAMMING PROCEDUREPlanning of a CNC program is no different than any other planning。 it must be approached in a logical and methodical way. The first decisions relate to what tasks have to be done and what goals have to be reached. The other decisions relate to how to achieve the set goals in an efficient and safe manner. Such a progressive method not only isolates individual problems as they develop, it also forces their solution before the next step can be taken.The following items form a fairly mon and logical sequence of tasks done in CNC programming. The items are only in a suggested order, offered for further evaluation. This order may be changed to reflect special conditions or working habits. Some items may be missing or redundant:1. Study of initial information (drawing and methods)2. Material stock (blank) evaluation3. Machine tool specifications4. Control system features5. Sequence of machining operations6. Tooling selection and arrangement of cutting tools7. Set of the part8. Technological data (speed, feed rates, etc.)9. Determination of the tool path10. Working sketches and mathematical calculations11. Program writing and preparation for transfer to CNC12. Program testing and debugging13. Program documentationThere is only one goal in CNC program planning and that is the pletion of all instructions in the form of a program that will result in an error free, safe and efficient CNC machining. The suggested procedures may require some changes – for example, should the tooling be selected before or after the part setup is determined? Can the manual part programming methods be used efficiently? Can the manual part programming methods be used efficiently? Are the working sketches necessary? Do not be afraid to modify any so called ideal procedure – either temporarily, for a given job, or permanently, to reflect a particular CNC programming style. Remember, there are no ideal procedures.第六章：制定編程計劃編寫任何CNC程序都必須經(jīng)過周密計劃后開始。這個過程的起點就是所需工件的工程圖。在實施工件加工之前一些步驟必須仔細(xì)考慮和評估。在程序的計劃階段付出的努力越多，最后預(yù)期的結(jié)果可能就越好。制定編程計劃的步驟具體采用哪些步驟要根據(jù)實際的工作條件而定，沒有國定的程式。但還是有一些基本的步驟可供參考：l 初始信息、機(jī)床的加工特性l 工件的復(fù)雜程度l 手工編
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