本课题是以CQ6232E车床尾架为研究对象，基本内容为CQ6232E车床尾架的三维实体设计和对该车床中的车床尾座的工艺设计。CQ6232E车床尾架的三维实体设计，先对该型号车床尾架进行拆卸，把所有零件的尺寸都测量齐全，运用三维软件solidworks绘图软件进行三维实体设计，零件图则由CAD完成。本次毕业设计课题的重难点在于车床尾架的工艺设计，具体步骤为：从尾架体零件的毛坯制造形式、选择粗基准与精基准、工艺路线制作、机加工余量及工件毛坯的确定，选择合适切削用量、基本工时等方面进行工艺分析，明确各个零部件的加工工艺过程以及流程，为尾架零部件的加工装配提供正确合理的指导。
目 录
ABSTRACT 4
1.绪 论 5
1.1研究背景 5
1.2国内外研究现状 5
1.3研究目的与意义 6
2.车床尾架的三维实体设计 7
2.1车床尾架三维实体图 7
2.1.1尾架设计的功能及意义： 7
2.1.2尾架的设计原理与零部件： 7
2.2尾架的夹紧机构设计 9
3.车床尾架非标零部件工艺过程确定 12
3.1 机械加工工艺规程概述 12
3.1.1制定工艺规程的原则 12
3.1.2制订工艺规程的步骤 12
3.2车床非标零部件的工艺过程分析 13
3.2.1车床尾座体的工艺过程 13
3.3确定切削用量和工时定额、各工序 20
3.3.1：粗、精铣底面 20
3.3.2 粗、半精、精镗侧面孔 22
3.3.3 粗、精铣底面 28
3.3.4、钻（钻6×Φ7.8的孔） 29
3.3.5、攻丝 29
3.3.6、底面配刮 29
3.3.7、珩磨：Φ75mm 的孔 29
3.4检验工具选择： 30
4.结束语 30
5.致谢 31
6.参考文献 32
ABSTRACT
The machining process was parted by two ki
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nd ways which are thermoprocess and cold work.Cold working hot machining casting, plastic processing, welding, surface treatment; cold processing about the machining and assembly process of parts, the current also includes special processing technology etc.. The machinery manufacturing be one of the pillars of construction and country developmentpartment. General machinery manufacturing of cold processing machinery parts.
d carries on the analysis of the technology. In the look of its tail frame the concretion of processly analysis, this paper introduces the characteristics and function, this research foucd on the tail frame body blank manufacturingdesgin form, andcompleted the process route choice and process design, mechanical machining allowance, determination of procedure sizes and blank, cutting dosages ways and basic manhour roads to determine processing analysis, etc.
The machining process is part of the process of mechanical products production, making to the required shape, size, surface roughness and mechanical physical properties and become qualified parts production processes. The machining processare the keys instruction production technical text, its directly ways toproduct , productivity and processing well products efficiency, technological procedures whether is the the important basis. In so many compiling
Key words：Processing craft; CQ6232E; Lathe tail frame; Tail frame body; engineering
目 录
ABSTRACT 4
1.绪 论 5
1.1研究背景 5
1.2国内外研究现状 5
1.3研究目的与意义 6
2.车床尾架的三维实体设计 7
2.1车床尾架三维实体图 7
2.1.1尾架设计的功能及意义： 7
2.1.2尾架的设计原理与零部件： 7
2.2尾架的夹紧机构设计 9
3.车床尾架非标零部件工艺过程确定 12
3.1 机械加工工艺规程概述 12
3.1.1制定工艺规程的原则 12
3.1.2制订工艺规程的步骤 12
3.2车床非标零部件的工艺过程分析 13
3.2.1车床尾座体的工艺过程 13
3.3确定切削用量和工时定额、各工序 20
3.3.1：粗、精铣底面 20
3.3.2 粗、半精、精镗侧面孔 22
3.3.3 粗、精铣底面 28
3.3.4、钻（钻6×Φ7.8的孔） 29
3.3.5、攻丝 29
3.3.6、底面配刮 29
3.3.7、珩磨：Φ75mm 的孔 29
3.4检验工具选择： 30
4.结束语 30

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