【正文】 某某學(xué)院畢業(yè)設(shè)計(jì)（論文） 某某學(xué)院畢業(yè)設(shè)計(jì)（論文） CA6140 車床縱向開環(huán)系統(tǒng)設(shè)計(jì) 專 業(yè) 機(jī)械設(shè)計(jì)與制造 所 在 系 機(jī)電工程系 某某學(xué)院畢業(yè)設(shè)計(jì)（論文） 摘 要 數(shù)控機(jī)床作為機(jī)、電、液、氣等一體化的典型產(chǎn)品，在機(jī)械制造業(yè)中發(fā)揮著巨大的作用，很好地解決了現(xiàn)代機(jī)械制造中結(jié)構(gòu)復(fù)雜、精密、批量小、多變零件的加工問題，且能穩(wěn)定產(chǎn)品的加工質(zhì)量，大幅度地提高生產(chǎn)效率。但從目前企業(yè)面臨的情況看，因數(shù)控機(jī)床價(jià)格較貴，一次性投資較大使企業(yè)心有余而力不足。我國(guó)作為機(jī)床大國(guó)，擁有大量的普通機(jī)床。因此，對(duì)普通機(jī)床數(shù)控化改 造不失為一種較好的選擇。 而且選用連續(xù)控制系統(tǒng)改造后的經(jīng)濟(jì)型數(shù)控車床具有定位、直線插補(bǔ)、圓弧插補(bǔ)、暫停、循環(huán)加工、螺紋加工等功能。考慮到經(jīng)濟(jì)型數(shù)控機(jī)床加工精度要求不高，為了簡(jiǎn)化結(jié)構(gòu)、降低成本，采用步進(jìn)電機(jī)開環(huán)控制系統(tǒng)，有利于機(jī)床的高效，普及。 關(guān)鍵詞 ： 機(jī)電一體化； 開環(huán)控制縱向進(jìn)給系統(tǒng)設(shè)計(jì)； 步進(jìn)電動(dòng)機(jī) 某某學(xué)院畢業(yè)設(shè)計(jì)（論文） Abstract CNC machine tools as mechanical, electrical, hydraulic, pneumatic and other typical product integration, played a huge role in the machinery manufacturing industry, very good solution to a plex structure in modern mechanical manufacture, precision, small batch, changing parts of the processing problems, and stable product quality, dramatically increasing productivity. But look on the current business situation, due to more expensive CNC machine tool, onetime investment large enterprises the flesh is weak. As the machine power in China, has a large number of mon machine tools. Therefore, ordinary numerical control transformation of machine tool is a good choice. And choose the continuous transformation of control system of CNC lathe with positioning, linear interpolation, circular interpolation, pause, loop processing, thread processing and other functions. Taking into account the economical numerical control machine tool accuracy is not high, in order to simplify the structure, reducing costs, using openloop stepper motor control systems, machinefriendly and efficient, universal. Keywords: Mechanicalelectrical integration ； Openloop control length feed system design ； Ball screw nut pair； stepper motor 某某學(xué)院畢業(yè)設(shè)計(jì)（論文） 目 錄 第一章 緒論 ..................................................................................................................... 1 設(shè)計(jì)的目的 ........................................................................................................ 1 設(shè)計(jì)的內(nèi)容 ........................................................................................................ 1 微機(jī)數(shù)控系統(tǒng)總體設(shè)方案的擬定 ................................................................. 1 進(jìn)給伺服系統(tǒng)機(jī)械部分設(shè)計(jì)計(jì)算 ................................................................ 2 微機(jī)控制系統(tǒng)的設(shè)計(jì) .................................................................................. 2 數(shù)控加工程序的編制 .................................................................................. 2 設(shè)計(jì)任務(wù) ............................................................................................................ 3 題目 .......................................................................................................... 3 .................................................................................................... 3 給定條件 ................................................................................................... 3 設(shè)計(jì)要求 ................................................................................................... 3 第二章 微型數(shù)控系統(tǒng)總體設(shè)計(jì)方案的擬定 ........................................................................ 4 總體方案的確定 .................................................................................................. 4 、系統(tǒng)的運(yùn)動(dòng)方式與伺服系統(tǒng)的選擇 ........................................................... 4 、計(jì)算機(jī)系統(tǒng) .............................................................................................. 4 、機(jī)床傳動(dòng)方式 .......................................................................................... 4 第三章 機(jī)床進(jìn)給伺服系統(tǒng)機(jī)械部分設(shè)計(jì)計(jì)算 .................................................................... 5 系統(tǒng)脈沖當(dāng)量及切削力的確定 ............................................................................ 5 切削力的計(jì)算 ..................................................................................................... 5 滾珠絲杠螺母副的 設(shè)計(jì)、計(jì)算和選型 .................................................................. 5 第四章 進(jìn)給伺服系統(tǒng)傳動(dòng)計(jì)算 ..................................................................................... 10 齒輪傳動(dòng)比計(jì)算 (縱向進(jìn)給齒輪箱傳動(dòng)比計(jì)算 ).................................................... 10 齒輪齒數(shù)及技 術(shù)參數(shù) ......................................................................................... 10 步進(jìn)電機(jī)的計(jì)算和選用 ..................................................................................... 11 、初選步進(jìn)電機(jī) ........................................................................................ 11 、根據(jù)草圖校核步進(jìn)電機(jī)轉(zhuǎn)矩 ................................................................. 12 等效轉(zhuǎn)動(dòng)慣量計(jì)算 ............................................................................................ 14 某某學(xué)院畢業(yè)設(shè)計(jì)（論文） 電機(jī)力矩計(jì)算 ................................................................................................... 15 計(jì)算步進(jìn)電動(dòng)機(jī)空載起動(dòng)頻率和切削時(shí)的工作頻率 ............................................ 17 第五章 微機(jī)數(shù)控系統(tǒng)硬件電路設(shè)計(jì) .............................................................................. 19 單片機(jī)數(shù)控系統(tǒng)硬件電路設(shè)計(jì)內(nèi)容 ................................................................... 19 、繪制系統(tǒng)電器控制的結(jié)構(gòu)框圖 ................................................................ 19 在微機(jī)應(yīng)用系統(tǒng)中， CPU 的選擇應(yīng)考慮以下因素 ...................................... 19 存儲(chǔ)器擴(kuò)展電路設(shè)計(jì) ................................................................................ 19