數(shù)控車床自動(dòng)回轉(zhuǎn)刀架機(jī)電系統(tǒng)設(shè)計(jì)(含cad圖紙)

1、I摘要自動(dòng)回轉(zhuǎn)刀架是數(shù)控機(jī)床的重要組成部分，它有效地提高了勞動(dòng)生產(chǎn)率，縮短了生產(chǎn)準(zhǔn)備時(shí)間，消除人工誤差提高加工精度和加工精度的一致性等。但是傳統(tǒng)的普通車床換刀的速度慢、精度不高，生產(chǎn)效率低，不能適應(yīng)現(xiàn)代化生產(chǎn)的需要。所以為了提高生產(chǎn)率、改善產(chǎn)品質(zhì)量以及改善勞動(dòng)條件必須對(duì)自動(dòng)回轉(zhuǎn)刀架進(jìn)行改進(jìn)。本文對(duì)數(shù)控車床自動(dòng)回轉(zhuǎn)刀架的機(jī)電系統(tǒng)的相關(guān)內(nèi)容進(jìn)行分析，研究數(shù)控車床刀架的組成和工作原理，對(duì)普通機(jī)床的換刀裝置進(jìn)行改進(jìn)，使該裝置具有自動(dòng)松開、轉(zhuǎn)位、

2、精密定位等功能。此次主要完成自動(dòng)回轉(zhuǎn)刀架的機(jī)械部分和電氣部分的設(shè)計(jì)。機(jī)械部分為對(duì)其組成的各個(gè)機(jī)械部件進(jìn)行計(jì)算與選用，電氣部分為編制刀架自動(dòng)轉(zhuǎn)位控制軟件。設(shè)計(jì)的數(shù)控?fù)Q刀裝置功能更強(qiáng)，換刀裝置通過刀具快速自動(dòng)定位，可以提高數(shù)控車床的效率，縮短加工時(shí)間；同時(shí)其可靠性更穩(wěn)定，結(jié)抅簡(jiǎn)單。關(guān)鍵詞關(guān)鍵詞:自動(dòng)回轉(zhuǎn)刀架，換刀裝置，機(jī)電系統(tǒng)，電氣控制III目錄1緒論.............................................

3、.................................................................................11.1自動(dòng)回轉(zhuǎn)刀架的設(shè)計(jì)背景.....................................................................................11.2自動(dòng)回轉(zhuǎn)刀架的市場(chǎng)分析........................

4、.............................................................21.3設(shè)計(jì)自動(dòng)回轉(zhuǎn)刀架的意義.....................................................................................22自動(dòng)回轉(zhuǎn)刀架總體設(shè)計(jì)...............................................

5、.................................................32.1總體方案的確定.....................................................................................................32.2減速機(jī)傳動(dòng)機(jī)構(gòu)的確定.............................................

6、............................................42.3刀體鎖緊與精定位機(jī)構(gòu)的確定.............................................................................52.4抬起機(jī)構(gòu)的確定.......................................................................

7、..............................53自動(dòng)回轉(zhuǎn)刀架機(jī)械部分設(shè)計(jì)........................................................................................63.1自動(dòng)回轉(zhuǎn)刀架的工作原理.........................................................................

8、............63.2蝸輪及蝸桿的設(shè)計(jì)及校核.....................................................................................83.2.1蝸桿的選型.................................................................................................

9、.....93.2.2蝸桿副的材料................................................................................................103.2.3按齒面接觸疲勞強(qiáng)度進(jìn)行設(shè)計(jì)....................................................................103.3蝸輪及蝸桿的主要參數(shù)與幾何尺

10、寸...................................................................123.4螺桿的主要參數(shù)與幾何尺寸...............................................................................143.4.1螺桿的設(shè)計(jì)計(jì)算..........................................

11、..................................................143.5蝸桿軸的設(shè)計(jì).......................................................................................................153.5.1蝸桿軸的材料選擇，確定許用應(yīng)力..................................

12、..........................153.5.2按扭轉(zhuǎn)強(qiáng)度初步估算軸的最小直徑............................................................153.5.3確定各軸段的直徑和長(zhǎng)度............................................................................163.5.4蝸桿軸的校核.....

13、...........................................................................................173.6蝸桿軸的軸承選用...............................................................................................214自動(dòng)回轉(zhuǎn)刀架電氣部分設(shè)計(jì)......

14、................................................................................224.1硬件電路設(shè)計(jì).......................................................................................................224.2控制軟件設(shè)計(jì)...............