外文翻譯--基于網(wǎng)絡(luò)的虛擬數(shù)控車削系統(tǒng)研究-數(shù)控設(shè)計-資料下載頁
2025-05-12 07:20本頁面
【導(dǎo)讀】真目前是一個重點研究的領(lǐng)域。本文指出將虛擬制造系統(tǒng)和網(wǎng)絡(luò)結(jié)合的重要性,并。和分布式體系結(jié)構(gòu)?；诰W(wǎng)絡(luò)的虛擬數(shù)控車削系統(tǒng)已經(jīng)利用虛擬現(xiàn)實建模語言和。Java語言得到了發(fā)展，并闡述了系統(tǒng)結(jié)構(gòu)和其主要職能的實現(xiàn)。加工與模型和仿真相結(jié)合來代替現(xiàn)實加工系統(tǒng)中的實物和其它操作。系統(tǒng)是具有高度多學(xué)科性質(zhì)。目前的許多研究項目和商業(yè)的CAD/CAM/CAE系。統(tǒng)在其完成時有很多限制。首先，在虛擬制造系統(tǒng)中許多加工的理論和啟發(fā)必須是。許多虛擬制造系統(tǒng)的設(shè)計僅僅是針對具體情況下的特定問題。制定每一個具體的任務(wù)。最后，因為不相容的界面，各種虛擬制造系統(tǒng)被開發(fā)成不。任何一個部分的改變，需。要整個系統(tǒng)的修改。一旦虛擬制造系統(tǒng)建成，它可用于多種用途：設(shè)計一個車間布局，估計。為了使研究工作有針對性，統(tǒng)是一個開放的、模塊化的虛擬制造系統(tǒng)。持運動時位置關(guān)系。具位置、切削深度、主軸轉(zhuǎn)速、進(jìn)給量、加工時間、退刀位置等可以自動被監(jiān)測。
【正文】 ine works according to Gcode input. The user can correct the Gcode program and immediately observe the results of the modified program. The virtual tuming machine has an embedded Gcode program interpreter, which is an independent module and can be substituted when required. information monitoring In a virtual turning process, machining conditions, process status, critical machining parameters and results, which include the current position of the cutter, the depth of cut, axis speeds, feedrates, cycle times, distance to go, etc., can be monitored dynamically. The cutter position is dynamically shown at the lefthand lower corner of the control panel. Other parameters are shown from time to time in the feedback information field (Fig. 2). information display the cutter39。s position scrollbar Gcode input Collision detection This virtual NC turning can automatically detect unexpected collisions during a virtual turning process and stop the process automatically. The NC program block where the collision has occurred will be highlighted. This collision detection module is also an independent module that can be substituted when other collision detection algorithms are needed Machining parameters simulation models Machining parameters include cutting forces, power consumption, surface roughness, tool wear, and tool life. However, many CAD/CAM/CAE applications are only graphical simulations. They do not provide parameter simulations because the modelling of these parameters is too plex and only specific problems in predefined conditions can be modelled for practical use. This webbased virtual NC turning machine provides an open and platform independent interface through which userdefined process algorithms, such as cutting force prediction and tool wear estimation, can be evaluated, refined and implemented. The figure 3 has shown a model of virtual turning. Figure 3. A model of virtual turning 4. FUNCTiONAL iMPLEMENTATiONS OF THE WEBBASED VIRTUAL NC TURNING Collision detection Collision detection is a key function of the webbased virtual NC turning system. As different machining systems have different definitions of collisions, the collision detection module should be developed separately for different machining demands. Ceometric limits The worktable must move horizontally within the specified limits in the XZ plane. Any Gcode program that attempts to make the movable parts of a machine traverse beyond their limits will be highlighted. This would lead to the pausing ofthe system, giving the user a chance to check and modify the Gcode program. Speed limits Each turning machine has fixed speed limits, such as maximum and minimum spindle speeds, maximum feed and rapid traverse speed. The userdefined Gcode program must follow these specifications. Otherwise, a speed collision will be detected.
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