畢業(yè)設(shè)計---對零件加工工藝的編寫及加工中所需夾具設(shè)計

1、成都工業(yè)學(xué)校畢業(yè)設(shè)計第1頁摘要此次畢業(yè)設(shè)計的目的是對零件加工工藝的編寫及加工中所需夾具設(shè)計。首先，零件材料是鑄鐵，零件的底面和側(cè)面是設(shè)計基準(zhǔn)，底面有14125槽及54125槽，上表面C有通孔13，側(cè)面基準(zhǔn)上有螺紋孔M10，左邊支臂有通孔25通孔。其次，根據(jù)零件分析可知，零件的基準(zhǔn)應(yīng)為下底面，14125槽和25孔的軸心線，底面基準(zhǔn)的加工需增加工藝面E，此時，工藝面E也是定位基準(zhǔn)，加工按粗精基準(zhǔn)選擇先后進行。最后，按照工藝內(nèi)容，設(shè)計工序所需

2、夾具，通過六點定位原理確定工件的位置，是用底板、鍵和定位塊來限制工件的自由度，再選擇合適的壓緊力防止工件移動。銑加工時，還應(yīng)增加對刀塊、定位鍵和輔助支撐來幫助加工，而在鉆加工時，應(yīng)增加鉆套，鉆模板來輔助加工。零件的圖紙及加工工藝分析是夾具設(shè)計的基本前提，工藝的優(yōu)劣與夾具的設(shè)計密切相關(guān)。關(guān)鍵詞：工藝夾具設(shè)計定位夾緊AbstractThegraduationdesigngoalistotheprocessingtechnologythewr

3、itingofthepartsprocessingffixturedesign.Firstofallpartsmaterialiscastironpartofabottomsidesisdesignstardstheunderside14x125tanks54x125slotsontheholesurfaceChave13thebenchmarksidethreadedholeM10theleftarmshavetheholehole2

4、5.Secondaccdingtopartsanalysisshowsthatthebenchmarkofpartsshouldbetheunderside14x125slots25holeofaxislinetheundersidebenchmarkshouldbeincreasedtofaceEprocessingtechnologyatthistimetechnologyisalsothelocatingdatumplaneEpr

5、ocessingaccdingtoroughingbasicionhas.Finallyaccdingtotheprocesscontentdesignprocessrequiredfixturethroughthesixpositioningprinciplemakewkpositionitis成都工業(yè)學(xué)校畢業(yè)設(shè)計第3頁目錄摘要......................................................

6、........................................................................................1Abstract...........................................................................................................................

7、.................1目錄..............................................................................................................................................3第1章緒論....................................................

8、..............................................................................51.1設(shè)計題目............................................................................................................................51.1.1設(shè)計的方

9、向.............................................................................................................61.1.2設(shè)計的內(nèi)容...................................................................................................

10、..........6第2章機械加工工藝和夾具的概述...........................................................................................72.1機械加工的工藝............................................................................................

11、....................72.1.1工序的劃分.............................................................................................................72.1.2基準(zhǔn)的選擇原則...................................................................

12、..................................72.1.3機床的選擇.............................................................................................................82.1.4刀具的選擇.......................................................

13、......................................................82.2機床夾具............................................................................................................................82.2.1機床夾具的分類.....................

14、................................................................................82.2.2機床夾具的組成..................................................................................................9第3章零件圖及工藝分析.................

15、.....................................................................................113.1零件的分析......................................................................................................................113.1.1

16、零件圖...................................................................................................................113.1.2生產(chǎn)綱領(lǐng)的要求........................................................................................

17、...........123.1.3零件工藝分析的要求...........................................................................................123.1.4加工零件圖的分析.......................................................................................

18、........133.2零件工藝的分析..............................................................................................................143.2.1毛坯的確定..............................................................................

19、.............................143.2.2零件加工的工藝方案...........................................................................................143.2.3加工順序的安排......................................................................

20、.............................173.2.4加工工件的定位...................................................................................................173.2.5機床的選擇..................................................................

21、.........................................183.2.6機械加工工藝卡...................................................................................................19表33零件工藝卡片.......................................................

22、.............................................19第4章夾具設(shè)計..........................................................................................................................224.1銑夾具的分析.................................

23、.................................................................................224.1.1定位夾緊的分析..................................................................................................224.1.2夾具元件的選用.............

24、......................................................................................224.1.3誤差的分析...........................................................................................................304.1.4壓板的強度校核.

25、..................................................................................................304.2鉆模的分析................................................................................................................