【正文】 立式車床 可以解決上述問題 。可編程控制器是一種專為在工業(yè)環(huán)境下應(yīng)用而設(shè)計(jì)的數(shù)字運(yùn)算操作的電子系統(tǒng)，它采用一種可編程程序的儲(chǔ)存器，在其內(nèi)部儲(chǔ)存執(zhí)行邏輯運(yùn)算、順序控制、定時(shí)、計(jì)數(shù)和算術(shù)運(yùn)算等操作的指令，通過數(shù)字式、模擬式的輸入輸出來控制各種類型的機(jī)械設(shè)備的生產(chǎn)過程。 對(duì)普通的 4M立式車床的數(shù)字化改造， 使 PLC技術(shù)應(yīng)用于 4M立式車床中， 目的在于使機(jī)床的進(jìn)給系統(tǒng)實(shí)現(xiàn)對(duì)主軸轉(zhuǎn)速的快速跟蹤及刀具的精確定位，能以工藝要求的任意比例確定切 削速度，加工螺紋等復(fù)雜輪廓表面。 關(guān)鍵詞 ： 立式車床； 進(jìn)給系統(tǒng)； 可編程控制器； 同步伺 服電機(jī) Abstract The programmable controller ( PLC ) is widely used in CNC machine tools and other industrial control, mainly because of the use of PLC to replace the relay control logic control of NC machine tool, that results in a more pact, more functions, the corresponding speed and reliability are greatly improved. Programmable controller is a designed for applications in the industrial design environment of electronic digital puting operating system, it uses a programmable memory, in its internal storage implementation of logical, sequential control, timing, counting and arithmetic operations such as instruction, through digital, analog input output the control of various types of machinery and equipment of the production process. Vertical lathe is targeted to specific work, specific processing and the design of a high efficient automation equipment for processing, mainly for processing large diameter, the short length of large, heavy workpieces and not easy in horizontal lathe with the clamping of the workpiece, the workpiece is too heavy in the sleeper is not easy to clip, because of their weight, the processing accuracy influence of the vertical lathe, can solve the above problem. Common 4M vertical lathe processing of large mechanical equipment is important equipment for processing large size, radial and axial size is relatively small, large and heavy workpiece with plicated shape. Because the device adopts the gearbox has speed, tool feed system can not adapt to the processing of plex surface contour of the workpiece thread. To the ordinary 4M vertical lathe digital transformation, so that the application of PLC technology in 4M vertical lathe, the purpose is to make the machine feed system for spindle speed fast tracking tool and precise positioning, can process arbitrary proportion of determining cutting speed, processing thread and other plex surface contour. Using the programmable controller and frequency conversion and speed regulation technology of ordinary 4M vertical lathe for digital transformation, the electrical system to carry on the work of automatic cycling control, its convenience and workpiece processing capacity are higher than those of ordinary 4M machine tool. And PLC flexibility and expansibility, later to modify the program and debugging are convenient, after the pletion of the design, construction and control logic design can be done at the same time. Given the system hardware schematic diagram and system software structure, the application of coding for debugging, debugging results show that: the application of PLC and frequency control technology, can realize the mon 4M vertical lathe process requirements. KEY WORDS: vertical lathe； feed system； rogram logic controller； synchronous servomotor. 沈陽化工大學(xué)學(xué)士學(xué)位論文 目錄 目 錄 第一章 緒論 ......................................... 1 ....................... 1 可編程控制器的用途與特點(diǎn) ....................... 1 可編程控制器的分類 ............................. 2 采用西門子 S7200 PLC 的原因 .................... 3 第二章 方案論證 ..................................... 4 普通機(jī)床數(shù)控改造的意義 ......................... 4 PLC 的概述 ..................................... 4 PLC 應(yīng)用于立式車床的原因 ....................... 5 4M 立式機(jī)床的刀具運(yùn)動(dòng)方式 ...................... 6 進(jìn)給系統(tǒng)的改造方案 ............................. 6 第三章 系統(tǒng) 的硬件構(gòu)成 ............................... 8 系統(tǒng)的硬件電路構(gòu)成 ............................. 8 變頻器介紹 .................................... 9 伺服電機(jī)介紹 ................................. 10 可編程控制器的硬件組成 ........................ 11 可編程控制器 I/O 點(diǎn)的分配 ...................... 13 沈陽化工大學(xué)學(xué)士學(xué)位論文 目錄 可編程控制器 CPU 的硬件選型 .................... 14 可編程序控制器的主要性能指標(biāo) .................. 15 第四章 系統(tǒng)的軟件 .................................. 17 概述 ......................................... 17 可編程控制器的軟件組成 ........................ 17 STEP7 編程軟件概述 ............................ 18 系統(tǒng)的軟件結(jié)構(gòu) ............................... 18 第五章 系統(tǒng)的調(diào)試 .................................. 24 參考文獻(xiàn) ........................................... 25 致謝 ............................................... 26 沈陽化工大學(xué)學(xué)士學(xué)位論文 第 一 章 緒論 1 第一章 緒論 可編程控制器的生產(chǎn)與發(fā)展 在工業(yè)生產(chǎn)過程中，大量的開關(guān)量順序控制，它按照邏輯條件進(jìn)行順序動(dòng)作，并按照邏輯 關(guān)系進(jìn)行連鎖保護(hù)動(dòng)作的控制，及大量離散量的數(shù)據(jù)采集。國際電工委員會(huì)（ IEC）對(duì) PLC 的定義是：可編程控制器 是一種數(shù)字運(yùn)算操作的電子系統(tǒng)，專為在工業(yè)環(huán)境下應(yīng)用而設(shè)計(jì)。 它取代傳統(tǒng)的繼電器電路， 實(shí)現(xiàn)邏輯控制、順序控制，即可用于單臺(tái)設(shè)備的控制，也可以用于多電機(jī)群控及自動(dòng)化流水線。 PLC 有以下 7 種性能特點(diǎn)： ，可靠性 高； 、通用性強(qiáng)、應(yīng)用靈活； ，易于使用； ，擴(kuò)展能力強(qiáng)； 控制系統(tǒng)設(shè)計(jì)、安裝、調(diào)試方便； ，維修工作量?。?、體積小、重量輕，易于實(shí)現(xiàn)機(jī)電一體化。 2． 按結(jié)構(gòu)形式分 ⑴ 整