三爪卡盤增力機構(gòu)夾具設(shè)計

[摘要] 設(shè)計是在三爪卡盤上加裝擺動式液壓缸和平面螺旋機構(gòu)的螺旋擺動式液壓缸增力機構(gòu)的結(jié)構(gòu)。傳統(tǒng)的機床如車床、銑床上三爪卡盤的工作一般依靠工人用手工進行夾緊,這不但增加了工人的勞動強度，而且所需夾緊力非常大,還常常有夾不緊的情況，阻礙了生產(chǎn)率的提高。通過在三爪卡盤加裝擺動式液壓缸和平面螺旋機構(gòu)構(gòu)成螺旋擺動式液壓缸增力機構(gòu)，可實現(xiàn)與原有卡盤體的較好結(jié)合,并使外加壓力能轉(zhuǎn)換成圓周運動,且其結(jié)構(gòu)簡單,工作可靠,能達到較高的增力比，最后能達到較好的效果。

[關(guān)鍵詞]三爪卡盤 液壓缸 夾具 增力

目 錄
前言·············································································································1
第一章 夾具的簡介···························································································2
1.1 夾具的特點························································································2
1.2 研究夾具的目的和意義··········································································2
1.3 夾具的基本結(jié)構(gòu)和原理··········································································3
第二章 三爪卡盤螺旋擺動式液壓缸增力機構(gòu)的結(jié)構(gòu)和原理···········································3
第三章 主要參數(shù)確定與結(jié)構(gòu)計算··········································································4
3.1 液壓腔的結(jié)構(gòu)設(shè)計················································································4
3.2 轉(zhuǎn)子葉片數(shù)的設(shè)計················································································4
3.3 擺動角的設(shè)計······················································································5
3.4 定子圓柱活塞杠面積的設(shè)計·····································································5
第四章 凹槽輪廓線的設(shè)計···················································································6
4.1 輪廓面段數(shù)的確定················································································6
4.2 活塞杠升程的確定················································································6
4.3 參數(shù)θ1的設(shè)計·····················································································8
4.4 參數(shù)β的設(shè)計······················································································9
第五章 夾具在安裝和操作時應(yīng)注意的事項································································10
5.1 夾具的安裝·························································································10
5.2 夾具在操作時應(yīng)注意的事項······································································10
第六章 夾具的經(jīng)濟效益分析··················································································11
第七章 單工位夾具與成組夾具的分析······································································13
7.1定位基準與定位元件的選擇·······································································13
7.2夾緊元件與夾緊力的選擇·········································································13
7.3夾具基體的設(shè)計夾具基體··········································································13
7.4機殼成組..