毕业设计---活塞式空气压缩机曲轴的机械加工工艺及夹具设计.doc

编号 本科生毕业Piston air compressor of the crankshaft machining technology and fixture design 学 生 姓 名 专 业 机械设计制造及其自动化 学 号 指 导 教 师 分 院 年 月 摘要3L-10/8空气压缩机曲轴零件的机械加工工艺夹具的设计在夹具的设计过程中，主要?8；铣曲拐端面夹具主要用来铣空气压缩机曲轴曲拐端面。两夹具的夹紧元件都选用两个V形块和支承板 关键词曲轴 加工工艺夹具设计 Abstract The paper introduces 3L - 10/8 air compressor crankshaft machining process and fixture design. Mainly includes three parts: part analysis, design, technological procedures for fixture design. In Components analysis part, mainly introduced the analysis of the components, as well as its main problems process analysis and process analysis. In the procedure of design through two kinds of craft, the contrast of blank form, the mechanical manufacturing process dimension limits.but, and blank dimensions and every process of cutting dosages and basic work hours. In the special jig design process, the main design processing two oil hole clamp and milling crankcase face a fixture. Two oil hole clamp design is mainly used in oil drilling hole, ? 8, End milling crankcase fixture is mainly used in milling air compressor crankcase crankshaft end. Two of the clamping fixture element two v-shaped blocks and a plate for positioning. Keywords: The Crankshaft Processing Special Jig Design 目录绪 论 …………………………………………………………………………第一章 零件分析 ……………………………………………………………2 1.1 零件的作用……………………………………………………2 1.2 零件的工艺分析………………………………………………2 1.2.1 以拐径为?95mm为中心的加工表面…………………………2 1.2.2 以轴心线两端轴为中心的加工表面…………………………2 1.3 零件加工的主要问题和工艺过程设计分析…………………3 第二章工艺规程设计……………………………………………………5 2.1 确定毛坯的制造形式…………………………………………5 2.2 基面的选择……………………………………………………5 2.2.1 粗基准选择……………………………………………………5 2.2.2 精基准的选择…………………………………………………5 2.3 制定工艺路线 ……………………………………………………5 2.4 机械加工余量、工序尺寸及毛坯尺寸的确定 …………………8 2.4.1 加工两端中心线上的外圆表面………………………………8 2.4.2 粗车?86 mm与?93 mm外圆端面及M12深24mm螺孔……9 2.4.3 钻轴径?86 mm的端面钻左端?6的锥行孔…………………9 2.4.4 铣右端轴径?93mm的上的槽…………………………………9 2.4.5 铣?86处键槽…………………………………………………9 2.4.6 钻右端轴径?95 mm的孔（?30mm）…………………………9 2.4.7 铣115mm左右两侧面……………………………………10 2.4