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沈陽化工大學本科畢業(yè)設(shè)計說明書 致謝 摘 要 C6150車床 C6150主軸箱是車床的主要基礎(chǔ)件和支承拌之一，也是較為典型、比較復(fù)雜、技術(shù)條件要求較為嚴格、廢品率較高的箱體類鑄件．其底部盛油不得滲漏，上部開口為箱口。床頭箱生產(chǎn)一直沿用傳統(tǒng)鑄造工藝方案，其鑄件澆注位置選擇箱口朝下，箱底朝上，分型面在鑄件中部最大截面處， 兩箱手工模板造型。鑄件內(nèi)腔由兩壁隔開三個空腔， 是由三個主型芯形成，落在下箱，術(shù)質(zhì)芯盒．手工制芯．該方案的長處在于主型芯較小，形狀較筒單，芯盒制造、制芯都較方便，型芯烘干和下芯位置也一樣，下芯、合箱都很方便。 本說明書對于C6150車床主軸箱進行設(shè)計，其中包括： 主傳動系統(tǒng)的運動設(shè)計有:確定極限轉(zhuǎn)速、確定公比、確定轉(zhuǎn)速級數(shù)、確定結(jié)構(gòu)網(wǎng)和結(jié)構(gòu)式、繪制轉(zhuǎn)速圖、確定齒輪齒數(shù)和擬定傳動系統(tǒng)圖。 主運動部件的結(jié)構(gòu)設(shè)計有：帶傳動的設(shè)計、確定各種計算轉(zhuǎn)速、確定齒輪模數(shù)、確定各軸最小直徑和設(shè)計部分主軸主件。 設(shè)計完成后軸與軸承的校核：軸的校核主要通過軸頸、結(jié)構(gòu)、運動等計算出軸最大承受的力量，能夠正常工作的時間。軸承則通過與每根不同的軸的連接，確定要用的軸承，選出最好的軸承，最終確定軸和軸承是否達到要求。 其中最主要的部分則是主軸部件結(jié)構(gòu)：C6150的主軸部件結(jié)構(gòu)的剖面部分是以前支撐為主，后支撐為輔的三支撐部件。前、中支撐分別是深溝球軸承和圓錐滾柱軸承，螺母通過蝶形彈簧來控制預(yù)緊力和補償熱膨脹。后支撐是一只單列向心球軸承，它在箱體支撐孔。 關(guān)鍵詞： 機床, 軸, 床頭箱 Abstract The spindle box is the foundation and support of the lathe is one of the typical mix, also, more complex, technical requirements more stringent, the higher rejection rate of casting the box oil leakage. Not, the opening of the upper part is the box. The headstock traditional casting process, the casting pouring position selection box mouth down, bottom up, parting surface in the casting middle maximum cross-section, two boxes of hand shape by template. Casting cavity is composed of two wall three cavities, which is composed of three main core formation, fall on a lower box, operation box handmade quality core . The scheme has the advantage of main core is small, relatively simple, core box core making manufacture, convenient, core drying and core the position is the same, the core, a box is very convenient. Main transmission system design is: to determine the movement speed, and determine the speed, structure, and structured, rendering speed diagram, the pinion gear transmission system and the plan. The moving parts of structure design: belt transmission design and calculation speed, determine the gear module, each shaft diameter and the design of main shaft parts. One of the most important part is the spindle structure: C6150spindle structure section was previously support, back support supplemented by three supporting parts. Ago, supporting are deep groove ball bearing and tapered roller bearing, the nut through the butterfly spring to control the pretightening force and to compensate for thermal expansion. After supporting a single-row radial ball bearing, which in the body supporting hole. Key words: Machine tool, Check, Berth box 目 錄 第一章 引言 1 第二章 設(shè)計計算 4 2.1設(shè)計目的 4 2.2運動設(shè)計 4 2.3動力設(shè)計 8 2.4齒輪強度校核 12 2.5 主軸撓度的校核 16 2.6主軸最佳跨距的確定 17 2.7各傳動軸支承處軸承的選擇 18 2.8 主軸剛度校核 18 2.9結(jié)構(gòu)設(shè)計及說明 20 結(jié)論 29 參考文獻 30 致謝 31 - 5 -