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鹽城工學(xué)院機(jī)械工程系畢業(yè)設(shè)計(jì)說(shuō)明書
摘 要
本設(shè)計(jì)是在搜集大量臺(tái)式車床車頭箱孔系加工工藝資料的基礎(chǔ)上，根據(jù)被加工箱體孔系的結(jié)構(gòu)特點(diǎn)、尺寸精度、表面粗糙度和技術(shù)要求、定位夾緊方式、工藝方法和加工過(guò)程中所采用的刀具和輔具、切削用量情況以及生產(chǎn)率要求等，按照工序集中的原則而設(shè)計(jì)出來(lái)的一種高效率的臺(tái)式車床車頭箱孔系加工分配箱機(jī)構(gòu)。設(shè)計(jì)傳動(dòng)系統(tǒng)時(shí)，盡可能地減少了主軸、傳動(dòng)軸和傳動(dòng)齒輪的數(shù)量；設(shè)計(jì)各分主軸轉(zhuǎn)速時(shí)，只考慮能與工件被加工孔徑相匹配，而由車床車頭箱變速來(lái)使個(gè)分主軸得到比較合理的切削速度；設(shè)計(jì)分配箱軸承支墻跨度時(shí)，由于采用浮動(dòng)聯(lián)接鏜桿，加工精度由鏜模保證，跨度只需滿足變速齒輪安裝的必要空間。經(jīng)實(shí)例計(jì)算證明，該機(jī)構(gòu)具有“體積小、重量輕、結(jié)構(gòu)簡(jiǎn)單、使用方便、效率高、質(zhì)量好”的特點(diǎn)。
關(guān)鍵詞：分配箱 臺(tái)式車床車頭箱 工序集中
Abstract
Designing and collectting a large number of desk-top lathe locomotive case hole department processing technology foundation of materials originally, according to processing the structure characteristic of the hole department of body of case, size precision, the roughness of surface and specification requirement, make a reservation and clamp way, craft method and cutter and complement and have, cut quantity situation and productivity not to require etc. that adopt in the course of processing, Design according to principle that process concentrate on one that come out desk-top lathe locomotive case hole department of high efficiency processes and assigns the organization of the case. While designing the transmission, have reduced the quantity of main shaft, drive shaft and transmission gear wheel to the best of one's ability; Design every main shaft on the rotational speed, consider and can process with work piece aperture match only, and is changed speed to make main shafts get the more rational speed of cutting by the locomotive case of the lathe; Design and assign case bearing prop up wall when the span, because adopt and float to link and bore the pole, machining accuracy bore mould guarantee span need and satisfy and change speed essential space that the gear wheel is installed only. Calculate and prove by instance organization this have characteristic on" small, light, the structure is simple, easy to use, efficiency is high, high in quality".
Keyword: The distributed case Desk-top lathe locomotive case The centralized process
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