【正文】 s positionafter drilling the hole, anther rapid move takes place to the next hole39。 tooling engineers. Help in tool selection or optimum tool working conditions can also be obtained from tool manufacturer software. Examples would be Kennametal39。這些想 法及重要的決定將會成為考慮 CNC 系統(tǒng)經(jīng)濟性調(diào)整問題的主題。微型技術(shù)的發(fā)展，可成功的加工一批或一個 2 全件。 在 19 世紀(jì) 60 年代中時，一個 UK 公司， Molins 介紹他們獨特的“系統(tǒng) 24”意思是一天能加工 24 小時。分開的控制可由每軸完成，在早期的點到點機床中 ，選取路徑不很重要，但它必須避免在獲得多需要精度中所產(chǎn)生的沖擊。在控制桌面位置，典型的機床是三軸連續(xù)曲線的機床刀具，它能產(chǎn)生一個所需要的形狀或曲線，可能的話，通過一個連續(xù)的滑移實現(xiàn)。這個領(lǐng)域中，最早的一些研究和發(fā)展完成于美國，并記載了 UK 關(guān)于數(shù)控發(fā)展方面的貢獻(xiàn)。 機床周圍應(yīng)該保持清潔，并且無導(dǎo)致絆倒或打滑的障礙物。大多數(shù)的機械繪圖使用電腦存儲了零件平面圖形及其注釋。JOBPLAN 文件運行時，表示刀具信息， GRAPHICS 文件表示刀具路徑和切削順序。根據(jù)輸入切削的寬和深以及完成切削需切去的材料，計算機產(chǎn)生粗切削的加工程序。如果其位置是錯的，其撤消命令選擇這一記錄，并允許你給這個工序新的值。這包括的加工方式是 車或磨。這就幫助最大提高了機床效率。機床極限能力必須考慮全面，這就需要刀具材料，刀具類型，和其推薦應(yīng)用的知識。 CAM 系統(tǒng)允許 CNC 程序員在高效的加工過程的建立上濃縮、精選、而不重新學(xué)習(xí)已改變的代碼格式。 CAM 和 CNC CAM 系統(tǒng)改變了 CNC 程序員的工作，即從手工編制 CNC 代碼到 CNC 機床的輸出最大值。 CNC 機床不需要額外的時間和特別的預(yù)防就可生產(chǎn)高精度的嚴(yán)格公差的零件。切削速度和進給量要像在其他操作機床中一樣是正確的。舉幾個例子，如刳刨機進行木料加工；激光、離子弧、火焰切削、噴水切削鋼板；在制造和裝配中機器人的控制等。 畢業(yè)設(shè)計 (論文 )外文資料翻譯 設(shè)計題目 : 貽貝殼破碎、磨粉綜合加工機械 設(shè)計 譯文題目 : 先進的加工工藝 院系名稱： 機電工程學(xué)院 專業(yè)班級： 機制 F0805 學(xué)生姓名： 李礦峰 學(xué) 號： 202149050927 指導(dǎo)教師： 翟雪琴 教師職稱： 附 件： ； 。本書的這個部分僅是一般介紹而不能作為專業(yè)機床的設(shè)計手冊。 CNC 機床的最大優(yōu)勢來自無錯的和快速的可能運動的控制。 CNC 使機床不需要復(fù)雜的夾具，這使零件很快被加工從而節(jié)約了時間。自從手工 CNC 機床被一大批廠家生產(chǎn)以來，許多不同的 CNC 控制單元就被使用了。一個 CNC程序員看著一個零件的圖紙，并且設(shè)計必要的機床操作來制造這個零件（如圖O3）。一個優(yōu)秀的 程序員將花相當(dāng)數(shù)量的時間來研究關(guān)于新的、改進的刀具和刀具材料的快速設(shè)計者發(fā)表的書籍。如果不只一臺機床在同時工作的話了解一臺機床的功率需求是必要的。接著這個零件圖被研究來做成機床加工工序，粗加工或精加工、鉆、沖、磨等操作。當(dāng)端面磨時，切削運動通常被定義為弧。程序員嘗試各種粗基準(zhǔn)，以便選出最有效的切削加工方法。也用 MACHINE DEFINE 文件表示 CNC 代碼命令。格式化的 CAM 通過它的 CAM CONNECTION，可以讀一個 CAD 文件和轉(zhuǎn)移它的圖形到它的輪廓基準(zhǔn)中去。機床表面不應(yīng)該被用作工作臺。第二次世界大戰(zhàn)后的一個主要問題是，商業(yè)和軍隊迅速發(fā)展，在勞動力密集的加工中，現(xiàn)代工業(yè)界所需的自動化與精確度不可獲得。 與美國機床刀具控制發(fā)展的同時， UK 中的 ALIFRED Herber 產(chǎn)生了第一臺 NC機床。所以，趨勢下一點的方向必須是相同的。它可被認(rèn)為是系列但作用刀具通過計算機上控制的運輸系統(tǒng)連接起來的復(fù)合機床。當(dāng)兩個相關(guān)的因素存在后，在一個生產(chǎn)環(huán)境中，讓 CNC 實現(xiàn)靈活且 輕松的編程的夢想變成為現(xiàn)實。 英文原文 ADVANCED MACHINING PROCESSES As the hardware of an advanced technology bees more plex, new and visionary approaches to the processing of materials into useful products e into mon use. This has been the trend in machining processes in recent years.. Advanced methods of machine control as well as pletely different methods of shaping materials have permitted the mechanical designer to proceed in directions that would have been totally impossible only a few years ago. Parallel development in other technologies such as electronics and puters have made available to the machine tool designer methods and processes that can permit a machine tool to far exceed the capabilities of the most experienced machinist. In this section we will look at CNC machining using chipmaking cutting tools. CNC controllers are used to drive and control a great variety of machines and mechanisms, Some examples would be routers in wood working。s TOOLPRO, software designed to help select the best tool grade, speed, and feed rates for different work materials in turning application. Another very important feature of TOOLPRO is the display of the horsepower requirement for each machining selection. This allow the programmer to select a bination of cutting speed, feed rate, and depth of cut that equals the machine39。s positionafter retraction of the drill. Of course, the rapid motion of the sideways could be achieved by each axis in a sequential and independent manner, or simultaneously. If a separate control was utilisec for each axis, the former method of table travel was less essential to avoid any backlash in the system to obtain the required degree of positional accuracy and so it was necessary that the approach direction to the next point was always the same. The earliest examples of these cheaper pointtopoint machines usually did not use recalculating ball screws。s conclusion was that the metal cutting industry throughout the entire country could not copy with the demands of the American Air Force, let alone the rest of industry! As a direct result of the survey, the US Air Force contracted the Persons Corporation to see if they could develop a flexible, dynamic, manufacturing system which would maximize productivity. The Massachusetts Institute of Technology (MIT) was subcontracted into this research and development by the Parsons Corporation, during the period 19491951,and jointly they developed the first control system which could be adapted to a wide range of machine tools. The Cincinnati Machine Tool Company converted one of their standard 28 inch HydroTel milling machines or a threeaxis automatic milling made use of a servomechanism for the drive system on the axes. This machine made use of a servomechanism for the drive system on the axes, which controlled the table positioning, crossslide and spindle head. The machine cab be classified as the first truly three axis continuous path machine tool and it was able to generate a required shape, orcurve, by simultaneous slide way motions, if necessary. At about the same times as these American advances in machine tool control were taking Place, Alfred Herbert Limited in the United Kingdom had their first Mutinous path control system which became available in the next few years in both the USA and Europe, further development work occurred. These early numerical control developments were principally for the aerospace industry, where it was necessary to cut plex geometric shapes such as airframe ponents and turbine blades. In parallel with this development of sophisticated control systems for aerospace requirements, a pointtopoint controller was developed for more general machining applications. These less sophisticated pointtopoint machines were considerably cheaper than their more plex continuous path cousi