機械夾具

1、機械加工工藝裝備,天馬行空官方博客： ；QQ:1318241189；QQ群：175569632,機械加工工藝裝備,1.1 機床 1.2 刀具 1.3 夾具,天馬行空官方博客： ；QQ:1318241189；QQ群：175569632,夾具,1.3,1.3.1 機床夾具概述 1.3.2 工件的定位 1.3.3 工件的夾緊 1.3.4 典型夾具,1.3 夾具,1.3.1 機床夾具概述,夾緊：是指工件定。

2、第一節(jié) 車床夾具設(shè)計實例,一、明確設(shè)計任務(wù),設(shè)計 “渦輪箱體”零件工藝流程中第8道工序的車床專用夾具。,二、定位方案及定位元件,1確定定位方案,2選擇定位元件,選擇角鐵（角鐵支承面消除工件3個不定度）、兩個支承釘（消除工件2個不定度）和削邊心軸（消除工件1個不定度。,三、夾緊方案及夾緊裝置的設(shè)計,1夾緊力方向的確定,2夾緊力作用點確定,3夾緊力大小,夾緊方案示意圖,四、夾具結(jié)構(gòu)的設(shè)計,1定位裝置。

3、第七節(jié) 機械加工夾具設(shè)計與應(yīng)用,一、概 述,為了加工出符合規(guī)定技術(shù)要求的表面，必須在加工前將工件裝夾在機床上。,1. 工件的裝夾,實現(xiàn)工件的定位與夾緊,安裝：工件從定位到夾緊的全過程稱為。 安裝工件時，一般是先定位后夾緊，而在三爪卡盤上安裝工件時，定位與夾緊是同時進(jìn)行的,夾緊：工件定位后將其固定，使其在加工過程中不致因切削力、重力和慣性力的作用而偏離正確的位置保持定位位置不變的操作。,定位：使工件。

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