毕业设计（论文）-三拐曲轴加工工艺程及夹具设计（全套图纸三维）.doc

PAGE 2 PAGE II本科毕业设计三拐曲轴加工工艺规程及夹具设计学生姓名： 学生学号： 院 系： 年级专业： 指导教师： 摘 要此次毕业设计任务是对三拐曲轴零件的机械加工工艺夹具的设计，主要包括对零件图的分析、毛坯的选择、零件的装夹、工艺路线的制订、刀具的选择、切削用量的确定、加工工艺文件的填写。选择正确的加工方法，设计合理的加工工艺过程。此外还对三拐曲轴零件的工序的加工设计了专用夹具.本文主要对三拐曲轴零件主要以V形块和支承板来定位，靠直压板和弹簧来夹紧，铣键槽时2个V形块与铣刀不能干涉，因此要降低V形块高度，夹具设计要方便、简单。关键词：加工工艺，加工方法，工艺文件，夹具ABSTRACTThe graduation design task is to design the fixture machining process of crank shaft parts, including the parts of the analysis, the choice of blank, the clamping, the formulation process route, tool selection, cutting dosage, process documents. Choose the correct methods for processing, manufacturing process design. In addition, processing of loom crank parts design process special fixture.This paper focuses on the loom crankshaft parts mainly in the V block and the support plate to locate, near the straight plate and spring clamp, keyway milling for 2 V block interference and the cutter can not, so to reduce the V block height, fixture design to be convenient, simple.Keywords: processing technology, processing methods, process, fixture目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc479369845 摘 要 PAGEREF _Toc479369845 \h II HYPERLINK \l _Toc479369846 ABSTRACT PAGEREF _Toc479369846 \h I HYPERLINK \l _Toc479369847 1 绪论 PAGEREF _Toc479369847 \h 1 HYPERLINK \l _Toc479369848 1.1机械加工工艺概述 PAGEREF _Toc479369848 \h 1 HYPERLINK \l _Toc479369849 1.2机械加工工艺流程 PAGEREF _Toc479369849 \h 1 HYPERLINK \l _Toc479369850 1.3夹具概述 PAGEREF _Toc479369850 \h 2 HYPERLINK \l _Toc479369851 1.4机床夹具的功能 PAGEREF _Toc479369851 \h 2 HYPERLINK \l _Toc479369852 1.5机床夹具的发展趋势 PAGEREF _Toc479369852 \h 3 HYPERLINK \l _Toc479369853 1.5.1机床夹具的现状 PAGEREF _Toc479369853 \h 3 HYPERLINK \l _Toc479369854 1.5.2现代机床夹具的发展方向 PAGEREF _Toc479369854 \h 3 HYPERLINK \l _Toc479369855 1 零件分析 PAGEREF _Toc479369855 \h 5 HYPERLINK \l _Toc479369856 1.1零件的作用 PAGEREF _Toc479369856 \h 5 HYPERLINK \l _Toc479369857 1.2零件的工艺分析 PAGEREF _Toc479369857 \h 5 HYPERLINK \l _Toc479369858 1.2.1以拐径为?55mm为中心的加工表面 PAGEREF _Toc47936