本文關(guān)鍵詞：數(shù)控系統(tǒng)用戶(hù)宏程序的研究與應(yīng)用　出處：《蘭州交通大學(xué)》2016年碩士論文　論文類(lèi)型：學(xué)位論文

  更多相關(guān)文章： 數(shù)控系統(tǒng) 用戶(hù)宏程序 系統(tǒng)變量 數(shù)控加工 程序消耗率

【摘要】：隨著數(shù)控機(jī)床在制造業(yè)被廣泛采用和快速普及,信息技術(shù)、通信技術(shù)、自動(dòng)化技術(shù)等在數(shù)控技術(shù)上的應(yīng)用,企業(yè)管理信息化、現(xiàn)代化的發(fā)展,數(shù)控系統(tǒng)的用戶(hù)宏程序功能和分布式控制技術(shù)DNC(Distributed Numerical Control)越來(lái)越受到使用者、設(shè)計(jì)者、操作者等業(yè)內(nèi)人士的關(guān)注。這是因?yàn)檎_使用用戶(hù)宏程序功能,不僅可以提高數(shù)控加工程序的編程效率,而且可以提高數(shù)控機(jī)床的加工效率;同時(shí),利用宏指令對(duì)實(shí)時(shí)的進(jìn)給速度和數(shù)控程序?qū)嶋H的運(yùn)行時(shí)間進(jìn)行提取,可據(jù)此分析加減速控制對(duì)數(shù)控加工過(guò)程中的影響和數(shù)控機(jī)床在特定加工狀態(tài)下的程序消耗率。論文在對(duì)FANUC數(shù)控系統(tǒng)用戶(hù)宏程序指令系統(tǒng)分析研究的基礎(chǔ)上,針對(duì)宏程序在復(fù)雜輪廓工件數(shù)控編程加工中的應(yīng)用,以鏈輪加工為例進(jìn)行了研究。由于鏈輪齒形的復(fù)雜性,若采用CAD/CAM自動(dòng)編程的話(huà),會(huì)導(dǎo)致程序冗長(zhǎng)、不易修改;若采用普通的手工編程的話(huà),需要計(jì)算大量的節(jié)點(diǎn)坐標(biāo),工作量大且比較復(fù)雜。利用用戶(hù)宏程序編制出的加工程序不僅更精簡(jiǎn),而且還可以提高程序的編程效率以及通用性。根據(jù)數(shù)控系統(tǒng)的外部通信宏指令和系統(tǒng)變量地址,提取實(shí)時(shí)的進(jìn)給速度和程序的實(shí)際運(yùn)行時(shí)間。利用C#作為上位機(jī)開(kāi)發(fā)語(yǔ)言和MSComm串口控件實(shí)現(xiàn)NC程序的傳輸和接收提取的數(shù)據(jù)并顯示。針對(duì)非圓曲線(xiàn)的數(shù)控加工過(guò)程,利用宏指令提取到的實(shí)時(shí)進(jìn)給速度,分析了加減速控制對(duì)實(shí)際加工過(guò)程的影響。針對(duì)DNC系統(tǒng)中通信沖突問(wèn)題,對(duì)數(shù)控機(jī)床的程序消耗率進(jìn)行了計(jì)算分析。利用外部通信宏指令提取到NC程序的實(shí)際運(yùn)行時(shí)間,分析計(jì)算了特定加工狀態(tài)下的程序消耗率,為DNC通信調(diào)度提供了依據(jù)。通過(guò)對(duì)NC程序進(jìn)行優(yōu)化,在確保加工精度的前提下,比較采用不同編程方式和不同的數(shù)據(jù)形式編寫(xiě)的數(shù)控加工程序長(zhǎng)度的差異,可以看出,采用合理的編程方式或編程數(shù)據(jù)形式,可以降低程序消耗率,提高DNC系統(tǒng)的通信效率。
[Abstract]:With the wide adoption and rapid popularization of CNC machine tools in the manufacturing industry, information technology, communication technology, automation technology and other applications in NC technology, enterprise management information, modern development. The user macro program function and distributed control technology DNC(Distributed Numerical Control of NC system are more and more popular with users and designers. This is because the correct use of user macro program function can not only improve the programming efficiency of NC machining programs, but also improve the machining efficiency of CNC machine tools. At the same time, the macro command is used to extract the real-time feed speed and the actual running time of the NC program. The effect of acceleration and deceleration control on NC machining process and the program consumption rate of NC machine tools under specific machining conditions can be analyzed accordingly. This paper is based on the analysis and research of user macro program instruction system of FANUC CNC system. Go. Aiming at the application of macro program in NC programming machining of complex contour workpiece, the sprocket machining is studied as an example. Because of the complexity of sprocket tooth profile, if CAD/CAM is used to program automatically. Can cause the program to be lengthy, not easy to modify; If we use common manual programming, we need to calculate a large number of node coordinates, the workload is large and more complex, and the processing program compiled by the user macro program is not only more concise. It can also improve the programming efficiency and generality of the program, according to the external communication macro instructions and system variable address of the CNC system. The real-time feed speed and the actual running time of the program are extracted. Using C # as the host computer development language and MSComm serial port control, the NC program can transmit and receive the extracted data and display the data. Line NC machining process. The effect of acceleration and deceleration control on the actual machining process is analyzed by using the real-time feed speed extracted from macro instructions. The communication conflict problem in DNC system is discussed. The program consumption rate of NC machine tool is calculated and analyzed. The actual running time of NC program is extracted from external communication macro instruction, and the program consumption rate under specific processing state is analyzed and calculated. It provides the basis for DNC communication scheduling. Through the optimization of NC program, under the premise of ensuring machining accuracy. Comparing the length difference of NC machining program written by different programming methods and different data forms, we can see that using reasonable programming method or programming data form can reduce the program consumption rate. Improve the communication efficiency of DNC system.
【學(xué)位授予單位】：蘭州交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類(lèi)號(hào)】：TG659

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