數(shù)控機床外文翻譯-數(shù)控設(shè)計-免費閱讀
【正文】 這系統(tǒng)最好備設(shè)計成會自動調(diào)整的進給箱，轉(zhuǎn)速，刀具位置以最小的成本和規(guī)定的公差內(nèi)生產(chǎn)零件。 一個復(fù)雜的形式的數(shù)控機床被稱為加工中心。在點對點系統(tǒng)，工具的路徑相對于兩孔之間工件的路徑 是不重要的，只要每個運動的終點坐標(biāo)被指定。 正如名字所暗示的，數(shù)值控制包括在指定相對位置的工具和工件的數(shù)值信息的基礎(chǔ)上的控制。 but two or threeaxis control systems are the most mon. In general, verticalmilling machines and lathes utilize continuouspath, or contouring control. Verticaldrilling machines jig borers, and small milling machines often use positional control. One sophisticated form of NC machine is known as the machining center. This machine is generally a verticalmilling machine with several axes of control and with automatic toolchanging facilities. The tools are usually held in a rotary magazine, and tool changes are manded by the punched tape. Thus, with a machining center a plicated workpiece can be pletely machined on all faces except the base through a bination of milling, drilling, boring, facing, reaming, and tapping operations. This type of system is therefore most suitable for the batch production of main ponents. A further refinement of numerical control is adaptive control. This type of system can adapt itself to the prevailing circumstances. These circumstances are measured by the system itself and might include the power required for the machining operation, the wear of the cutting tool or grinding wheel, the forces generated, or the on
畢業(yè)設(shè)計相關(guān)推薦
鄂ICP備17016276號-1