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1、2016 learning implement to tube main leaders topic seminar spirit counselling material 2016 learning implement to tube main leaders topic seminar spirit counselling material March 7, XI General Secretary to I province delegation participate in considered and published has important speech, on XXX pr
2、ovince people for China revolution victory and Socialist construction made of contribution give has certainly, on I province past five years implementation focus strategy, and grasp focus industry, economic social development made of results give has certainly, Clarified the demands for development
3、of XXX, referring to both directions, tasks and issues, teaching methods, for the current and future development in Heilongjiang province, is of great practical significance and far-reaching historical significance. March 22 to 24th, provincial held has province tube main leaders topic seminar, prov
4、incial Secretary Wang Xiankui comrade in seminar opening province do has important speech, Wang Xiankui stressed: in-depth learning acquisition General Secretary of speech, is on XXX a political account, we must put learning implement XI General Secretary important speech spirit as major political t
5、ask, adapted and led economic development new normal, insisted to economic construction for Center not shake, implement implementation new development concept, weaknesses, and swagger grams short, and yangchangbuduan, Stimulate the endogenous dynamics, formation effect of EMU, firm implementation of
6、 the five planning, the development of key industries, open Dragon River comprehensive revitalization new journey, struggling to get out of a high quality, efficient, better structure and development road of revitalization of the advantages into full play. March 29 to 30th, the Committee organized a
7、 pipe major thematic seminar of leading cadres prefectural comrade Jia Yumei made an important speech at the opening ceremony. Jia Shuji stressed, full district upper and lower must to effective enhanced learning publicity implement implementation XI General Secretary important speech spirit of poli
8、tical consciously, and thought consciously, and action consciously and mission consciously, put learning XI General Secretary and provincial Secretary Wang Xiankui speech spirit as current primary political task, to more strongly of attitude, and more powerful of measures, and more full of drive pro
9、moted forest transformation development, struggled to out of forest transformation development new, ensure as scheduled achieved full built forest society of target. Today the County for convening this Conference, is to fully implement the arrangements of the provincial, prefectural, and is a major
10、political task. County-wide each of the party members and cadres must earnestly study, deeply understand, enter into the heart, done outside the heart, of the line armed with Jia, Secretary of spirit and mind, practice, work, below, I XX practical study Jia Shujis important speech spirit with you. A
11、wareness, deepen the County, General Secretary 机械制造专业毕业设计说明书设计题目 设计“CA6140车床拨叉，型号861002”零件的机械加工工艺及工艺设备学生姓名： 黄忠 学生学号： 0524314 院 （系）： 机械工程系 年级专业： 05级机械设计制造及其自动化 指导教师： 刘永安 教授 二八年五月目录 摘要. 序言.一 零件的分析 1（一） 零件的作用 .1（二） 零件的工艺分析.3二 工艺规程的设计.4（一） 确定毛坯的制造形式.4（二） 基面的选择.4（三） 制定工艺路线.5（四） 机械加工余量 工序尺寸及毛坯尺寸的确定.8（五） 确
12、立切削用量及基本工时.10三 夹具设计.16（一） 问题的提出16（二） 夹具设计.16四 参考文献. .26摘 要此次设计是对拨叉零件的加工工艺和夹具设计，其零件为锻件，具有体积小，零件复杂的特点，由于面比孔易加工，在制定工艺规程时，就先加工面，再以面为基准来加工其它，其中各工序夹具都采用专用夹具，特别的对于加工大头孔、槽和钻小头孔斜面小孔的工序中，选一面两销的定位方式，并以操作简单的手动夹紧方式夹紧，其机构设计简单，方便且能满足要求。ABSTRACTThis design is to dials forks the components the processing craft and t
13、he jig design, its components are the forging, has the volume to be small, components complex characteristic,Because the surface is easier than the hole to process, when formulation technological process, first the machined surface, then processes other take the surface as the datum,In which various
14、 working procedures jig all uses the unit clamp, special regarding processes the big end of hole, the trough and drills the capitellum hole incline eyelet in the working procedure, Chooses locate mode which two sells at the same time, and operates the simple manual clamp way clamp, its organization design is simple, the convenience also can satisfy the request序言机械设计制造及其夹具设计是我们融会贯通三年所学的知识，将理论与实践相结合，对专业知识的综合运用训练，为我们即将走向自己的工作岗位打下良好的基础。机械加工工艺是规定产品或零件机械加工工艺过程和操作方法，是指导生产的重要的技术性文件。它直接关系到产品的质量、生产率及其加工产品的经济效益，生产规模的大小、工艺水平的高低以及解决各种工艺问题的方法和手段都要通过机械加工工艺来体现，因此工艺规程的编
