【正文】
100檢按圖紙要求檢驗(yàn);30mm;3;T68專用夾具,硬質(zhì)合金鏜刀,塞規(guī)80鏜精鏜孔到248。 50鉆1;鉆深孔248。28mm;2;3;Z575專用夾具,高速鋼錐柄麻花鉆、高速鋼90度锪鉆,塞規(guī)20mm;Z5125A專用夾具,高速鋼直柄麻花鉆、高速鋼90度锪鉆,塞規(guī)13mm的孔;鉆兩個(gè)銷孔248。 共頁(yè)產(chǎn)品名稱零件名稱后托架(CA6140車床)第 1頁(yè)材料牌號(hào)HT200毛坯種類鑄件毛坯外型尺寸2206067mm每毛坯件數(shù)2000每臺(tái)件數(shù)備注五、主要參考文獻(xiàn):[1] 白成軒.機(jī)床夾具設(shè)計(jì)新原理.北京:機(jī)械工業(yè)出版社,1997年;[2] 徐鴻本.機(jī)床夾具設(shè)計(jì)手冊(cè).沈陽(yáng):遼寧科學(xué)出版社,2004年;[3] 趙家齊.機(jī)械制造工藝學(xué)課程設(shè)計(jì)指導(dǎo)書(第2版).北京:機(jī)械工業(yè)出版社,2000 年;[4] 史全富等.金屬切削手冊(cè)(第三版).上海:上??茖W(xué)技術(shù)出版社,2000年;[5] 陳家芳.實(shí)用金屬切削加工工藝手冊(cè)(第二版).上海:上??茖W(xué)技術(shù)出版社,2005年;should be dealt with by the personnel Department of the pany. (3) personal injury accident occurs, the direct punishment 5001000, who is directly responsible for the accident responsibility, give notice of criticism and 50100 economic sanctions against them. (4) to conceal the accident, reported without undue delay or false, to inform the administrative leadership of the criticism, resulting in serious consequences, the pursuit of leadership, along with 5001000 punishment. (5) significant near miss should be attempted as the case of responsible for the accident and construction team injuries accident penalty provisions, mutatis mutandis. Eight, should perform in the construction standards and specifications, serial number a 1 GB33232005 steel fusion welded butt joints, welding engineeringRay lighting and quality rating of 2 GB1134589 steel welds manual methods of ultrasonic inspection and testing results for grade 3 GB502362002 industrial pipe welding engineering code for construction and acceptance of field equipment 4 HGJ22292 technical specification for welding of aluminium and its alloys 5 low temperature steel welding procedure 6 SH35252004 petrochemical JB/ T47082000 of welding procedure qualification for steel pressure vessels 7 JB/47092000 8 JB47302005 pressure vessel welding procedures of steel pressure vessel NDT 9 JB/T47442000 steel pressure vessel products mechanical properties test of welded plate II, mechanical equipment installation engineering 1 GB15098 2 GB501282005 vertical cylindrical steel pressure vessel steel welded specification for construction and acceptance of oil tank 3 JB/ T47351997 steel welded atmospheric pressure vessel 4 GB502312009 mechanical equipment installation機(jī)械加工工藝過(guò)程卡片產(chǎn)品型號(hào)總之,通過(guò)這次課程設(shè)計(jì)使我受益匪淺,為我今后的學(xué)習(xí)與工作打下一個(gè)堅(jiān)實(shí)而良好的基礎(chǔ)。通過(guò)這次課程設(shè)計(jì),使自己對(duì)工藝人員所從事的工作有了親身的體驗(yàn),學(xué)會(huì)了查圖表、資料、手冊(cè)等工具書。經(jīng)過(guò)唐老師的耐心指導(dǎo),以及相關(guān)工具書的查閱,本夾具總的感覺(jué)還是比較緊湊的。由于是精加工,鏜削余量十分小,鏜削力自然就小。夾具設(shè)計(jì)及操作的簡(jiǎn)要說(shuō)明: 如前所述,在設(shè)計(jì)夾具時(shí),應(yīng)考慮提高勞動(dòng)生產(chǎn)率,為此,應(yīng)首先著眼于機(jī)動(dòng)夾緊,而不采用手動(dòng)夾緊。40mm孔與回轉(zhuǎn)鏜模的內(nèi)徑的最大間隙為: 回轉(zhuǎn)鏜模的孔長(zhǎng)為50mm,則由上述間隙引起的最大傾角為:,即為鏜孔的最大平行度誤差。(2)計(jì)算248。因此。又因定位誤差分析:(1)定位元件尺寸及公差的確定:夾具的2個(gè)定位元件為支撐板和定位心軸,查夾具設(shè)計(jì)手冊(cè)知,鏜床夾具的誤 差是工件表面的誤差的1/2左右。(二)夾具設(shè)計(jì): 定位基準(zhǔn)的選擇: 由夾具零件圖知,三個(gè)孔的軸線與底面的距離有要求,底面已經(jīng)精加工。因此,精度已經(jīng)不是主要問(wèn)題。這三個(gè)孔的軸線與底面的平行度、各個(gè)孔的軸線的平行度都有一定的技術(shù)要求。(一)問(wèn)題的提出: 本夾具主要用來(lái)精鏜三杠孔(248。此夾具將用于T68臥式鏜床。經(jīng)過(guò)指導(dǎo)老師的布置和協(xié)商,決定設(shè)計(jì)精鏜三杠孔(248。40mm; 加工條件:工件材料:HT200,σ=200HBS,鑄造; 加工需求:精鏜到248。30mm; 機(jī)床:T68鏜床; 刀具:硬質(zhì)合金鏜刀; 確定切削進(jìn)給量: 根據(jù)《實(shí)用金屬切削加工工藝手冊(cè)》,取進(jìn)給量f=(mm/r); 確定切削速度: 根據(jù)《實(shí)用金