【畢業(yè)論文】經(jīng)濟(jì)型的數(shù)控改造完成說明書正文

1、目錄摘要.......................................................................................................................IAbstractAbstract................................................................................

2、..............................II第一章緒論.........................................................................................................11.1數(shù)控系統(tǒng)的發(fā)展及趨勢................................................................

3、........11.2數(shù)控銑床加工的基本原理....................................................................21.3數(shù)控加工工藝設(shè)計(jì)................................................................................31.4機(jī)床數(shù)控化改造的必要性......................

4、..............................................41.4.1微觀看改造的必要性................................................................41.4.2宏觀看改造的必要性................................................................5第二章設(shè)計(jì)方案的確定.....

5、..............................................................................62.1設(shè)計(jì)任務(wù).............................................................................................62.2總體設(shè)計(jì)方案的確定............................

6、.............................................62.2.1動力的選定...............................................................................62.2.2控制部分的設(shè)計(jì).......................................................................7

7、第三章數(shù)控系統(tǒng)硬件電路設(shè)計(jì).........................................................................83.1數(shù)控系統(tǒng)基本硬件組成........................................................................83.2單板機(jī)控制系統(tǒng)的設(shè)計(jì)..................................

8、.....................................93.3步進(jìn)電機(jī)控制程序設(shè)計(jì)........................................................................9第四章機(jī)械部分改造與計(jì)算...........................................................................114.1原始數(shù)據(jù)

9、分析...................................................................................114.2滾珠絲杠螺母副的選用設(shè)計(jì)（X向）..............................................114.2.1滾珠絲杠副的傳動原理...................................................

10、.......124.2.2滾珠絲杠副的傳動特點(diǎn)..........................................................124.2.3滾珠絲杠副的結(jié)構(gòu)與調(diào)整......................................................124.2.4軸向間隙的調(diào)整和加預(yù)緊力的方法......................................144.2.

11、5銑削力的計(jì)算.......................................................................164.2.6強(qiáng)度計(jì)算...............................................................................164.2.7剛度驗(yàn)算.........................................

12、.........................................174.2.8效率計(jì)算...............................................................................174.2.9穩(wěn)定性驗(yàn)算...........................................................................18

13、4.3錐形夾緊機(jī)構(gòu)的設(shè)計(jì)計(jì)算（X向）...................................................184.4齒輪間隙消除彈簧的計(jì)算（X軸）................................................204.5運(yùn)動部分轉(zhuǎn)動慣量計(jì)算（X軸）....................................................21I摘要20世紀(jì)中葉數(shù)

14、控技術(shù)和數(shù)控機(jī)床的誕生標(biāo)志著生產(chǎn)和控制領(lǐng)域的一個(gè)嶄新時(shí)代的到來。科學(xué)技術(shù)和社會生產(chǎn)力的迅速發(fā)展，對機(jī)械產(chǎn)品的質(zhì)量和生產(chǎn)率提出了越來越高的要求。機(jī)械加工工藝過程的自動化成為實(shí)現(xiàn)上述要求的最重要的措施之一。它不僅能夠提高產(chǎn)品的質(zhì)量、提高生產(chǎn)率、降低生產(chǎn)成本，還能夠極大地改善生產(chǎn)者的勞動條件。數(shù)控機(jī)床的工作過程是將加工零件的幾何信息和工藝信息進(jìn)行數(shù)字化處理，即對所有的操作步驟和刀具與工件之間的相對位移，以及進(jìn)給速度等都用數(shù)字化的代碼表示。而經(jīng)