汽車連桿加工工藝及夾具設(shè)計(jì)

1、畢業(yè)設(shè)計(jì)（論文）1目錄摘要....................................................................................................................3第一章第一章汽車連桿加工工藝汽車連桿加工工藝....................................................................

2、.............41.1連桿的結(jié)構(gòu)特點(diǎn).........................................................................................41.2連桿的主要技術(shù)要求.................................................................................41.2.1大、小頭孔的尺

3、寸精度、形狀精度...............................................51.2.2大、小頭孔軸心線在兩個(gè)互相垂直方向的平行度.......................51.2.3大、小頭孔中心距...........................................................................51.2.4連桿大頭孔兩端面對(duì)大頭孔中心線的垂直度.

4、..............................51.2.5大、小頭孔兩端面的技術(shù)要求.......................................................51.2.6螺栓孔的技術(shù)要求...........................................................................61.2.7有關(guān)結(jié)合面的技術(shù)要求...........

5、........................................................61.3連桿的材料和毛坯...................................................................................61.4連桿的機(jī)械加工工藝過程......................................................

6、.................81.5連桿的機(jī)械加工工藝過程分析...............................................................101.5.1工藝過程的安排.............................................................................101.5.2定位基準(zhǔn)的選擇..................

7、...........................................................111.5.3確定合理的夾緊方法.....................................................................121.5.4連桿兩端面的加工.............................................................

8、............121.5.5連桿大、小頭孔的加工.................................................................121.5.6連桿螺栓孔的加工.........................................................................131.5.7連桿體與連桿蓋的銑開工序...................

9、......................................131.5.8大頭側(cè)面的加工.............................................................................131.6連桿加工工藝設(shè)計(jì)應(yīng)考慮的問題...........................................................131.6.1工序安排..

10、.....................................................................................131.6.2定位基準(zhǔn).......................................................................................131.6.3夾具使用..........................

11、.............................................................131.7切削用量的選擇原則...............................................................................141.7.1粗加工時(shí)切削用量的選擇原則..............................................

12、.......141.7.2精加工時(shí)切削用量的選擇原則.....................................................151.8確定各工序的加工余量、計(jì)算工序尺寸及公差...................................151.8.1確定加工余量...................................................................

13、..............151.8.2確定工序尺寸及其公差.................................................................161.9計(jì)算工藝尺寸鏈.......................................................................................171.9.1連桿蓋的卡瓦槽的計(jì)算........

14、.........................................................171.9.2連桿體的卡瓦槽的計(jì)算.................................................................181.10工時(shí)定額的計(jì)算....................................................................

15、.................191.10.1銑連桿大小頭平面.......................................................................191.10.2粗磨大小頭平面...........................................................................191.10.3加工小頭孔.............

16、......................................................................201.10.4銑大頭兩側(cè)面...............................................................................211.10.5、擴(kuò)大頭孔............................................

17、.........................................21畢業(yè)設(shè)計(jì)（論文）3摘要連桿是柴油機(jī)的主要傳動(dòng)件之一，本文主要論述了連桿的加工工藝及其夾具設(shè)計(jì)。連桿的尺寸精度、形狀精度以及位置精度的要求都很高，而連桿的剛性比較差，容易產(chǎn)生變形，因此在安排工藝過程時(shí)，就需要把各主要表面的粗精加工工序分開。逐步減少加工余量、切削力及內(nèi)應(yīng)力的作用，并修正加工后的變形，就能最后達(dá)到零件的技術(shù)要求。關(guān)鍵詞關(guān)鍵詞:連桿變形加工工

18、藝夾具設(shè)計(jì)Theconnectingrodisoneofthemaindrivingmediumofdieselenginethistextexpoundsmainlythemachiningtechnologythedesignofclampingdeviceoftheconnectingrod.Theprecisionofsizetheprecisionofprofiletheprecisionofpositionoftheconn

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