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下載后請留上你的郵箱號或號或給我的留言:1459919609。18半圓面至216。30H7,45 176。[14]黃健求..《機械制造技術基礎》. 機械工業(yè)出版社 .2005。[10]于駿一 .《機械制造技術基礎》.北京:。[6]大連組合機床研究所 .《組合機床設計》.機械工業(yè)出版社 .1978。[2]顧崇衡 .《機械制造工藝學》.。由于被加工零件的孔有垂直度要求,.七、設計體會短暫的課程設計就要結(jié)束了,在這次設計中,我感受頗深。 A—單位切屑面積。應用下面的公式進行計算:其中:摩擦系數(shù)只在夾緊機構(gòu)有足夠剛性才考慮。根據(jù)生產(chǎn)率要求,運用手動夾緊可以滿足。、ap=(Dd)/2=()/2==;l2=15mm;而l=53mm;f=。f= 。式中l(wèi)=53mm。由公式n=1000v/Πd可求得該工序鉆頭轉(zhuǎn)速n=265r/min,參照表所列Z550 型立式鉆床的主軸轉(zhuǎn)速,取轉(zhuǎn)速n=351/,可求出該工序的實際鉆削速度v=nΠd/1000= (2)精鉸工步①背吃刀量的確定 取ap=。查表可依次確定各工步尺寸的加工精度等級為,精鉸:IT9;鉆:IT12;根據(jù)上述結(jié)果,再由表可查得,Φ30mm的孔精鉸余量Z精鉸=;鉆孔余量Z查標準公差數(shù)值表可確定各工步的公差值分別為,精鉸:;鉆:。8擴鉸球形孔。工序Ⅵ:粗銑S面及T面。工序Ⅲ:粗銑R面。(8)Φ8孔 公差等級為IT10,需粗銑即可。(4)T端面 公差等級按IT10,粗銑即可。(1)R端面 公差等級為IT10,需進行粗銑。. 毛坯尺寸只需將零件的尺寸加上所查得的余量值即可。大批量生產(chǎn)。 。該零件需要加工的表面均需切削加工,各表面的加工精度和表面粗糙度都不難獲得。歡迎朋友下次光臨?。?!AbstractDesign: Design stent parts of the machining process of order processing and φ30 H7 hole of equipment and spare parts to map out support plans, rough map, fixture assembly, filled out a card process, the preparation of curriculum design specification. Design significance: the adoption of the curriculum design, will learn theory and practice of bining production, tempered his analysis of the problem, identify problems and problemsolving abilities, in the process I am an independent analysis and solution of the mechanical parts of the manufacturing process issues, Design a machine for this fixture typical of equipment, improve the structure of design capability, enhance the professional skills for future graduates to design their own future and will be engaged in the work of an adaptation training, thus laying a good foundation. In the design of adjustment of the men