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摘要 I 摘 要 此次畢業(yè)設(shè)計(jì)任務(wù)是對(duì) 3L 10 8 空氣壓縮機(jī)曲軸零件的機(jī)械加工工藝 夾具的設(shè)計(jì) 在 曲軸零件的加工工藝過(guò)程中軸與軸中心線(xiàn)之間要有位置要求 以毛坯軸兩端定位先加工兩 中心孔 以?xún)啥酥行目锥ㄎ辉俅?精加工各軸的表面 然后以粗 精后的兩軸徑定位鉆螺 紋 銑鍵槽和銑曲拐端面 采用專(zhuān)用夾具加工兩斜油孔 最后粗 精磨各軸 在夾具的設(shè)計(jì)過(guò)程中 主要以 V 形塊和支承板 釘 來(lái)定位 靠直壓板和彈簧來(lái)夾 緊 鉆拐徑兩孔應(yīng)采用長(zhǎng)型快換鉆套 在鉆拐徑傾斜 的孔時(shí)采用平面傾斜的夾具體 30 在鉆拐徑傾斜 的孔時(shí)使用的是臥式鉆床 銑面時(shí) 2 個(gè) V 形塊與銑刀不能干涉 因此 V04 形塊高度要降低 夾具設(shè)計(jì)要方便 簡(jiǎn)單 關(guān)鍵詞 曲軸 加工工藝 夾具設(shè)計(jì) ABSTRACT I ABSTRACT This graduation project duty is to the 3L 10 8 air compressor crank components machine finishing craft the jig design between the crank components processing technological process middle axle and the axle must have the position request processes two center bores first by the semifinished materials axis both sides localization by both sides center bore localization again thick precision work various axes surface Then after thick the essence two axle diameter localization drills the thread the keyseat and the mill crank end surface uses the unit clamp to process two slanting oil holes finally thick correct grinding various axes In the jig design process mainly locates by V shape block and the support plate depends on the straight clamp and the spring clamps drills turns diameter two to be supposed to use long trades quickly drills the wrap when drills turns the diameter incline hole uses the plane incline the jig body when drills turns the diameter incline hole uses is the horizontal type drilling machine when face milling 2 V shape blocks and the milling cutter cannot interfere therefore V shape block altitude must reduce the jig design must be convenient be simple Key words crank processing craft jig design