[Abstract]: In machinery production , the machinery manufacturing instruction and the fixture of machine tools have got the prominent action in machinery production. The reasonable and reliable of its design can prone to achieve the accuracy of parts processes, shorten lend support time, increase the labor rate of production, diminish the production cost; and also can alleviate the worker’s operating strength, lower the request of the worker’s technique.
The text primarily tells the manufacturing processes of the gearbox, and the two special fixtures design of milling、boring processes. First make completely analysis to the part’s function and construction. On the basis of this, make the process route, and use the optimum arrangement. Next make calculation in details of cutting engagement and basis man-hours in the process. Finally, do the fixtures design, combining proofread, and make sure the chuck dependable, the work safety.
[Keywords]: nontraditional manufacturing processes、the fixture of machine tools、design目录
第一部分 零件的分析 5
技术要求: 5
一. 零件的分析 5
二. 零件的工艺分析 5
第二部分 工艺规程设计 6
一. 确定毛坯的制造形式 6
二. 定位基准的选择 6
三. 制定工艺路线 6
四. 选择加工设备及工艺装备 9
五. 确定加工余量、工艺尺寸及基本工时 10
工序20:铣上平面。 10
工序25:粗铣底平面 10
工序30:精铣底平面。 11
工序35:粗铣左平面 12
工序40:精铣左平面 12
工序45:粗铣右平面 13
工序50:精铣右平面 13
工序55:粗铣前平面 13
工序60:精铣前平面 14
工序65:粗铣后平面 14
工序70:精铣后平面 15
工序75:铰孔﹑锪沉孔并钻孔 15
工序80:粗半精镗111mm、195mm及235mm三同轴孔 16
工序85: 粗半精镗62mm、2-88mm和106mm四同轴孔 17
工序90:钻36mm粗半精镗52mm孔 17
工序95:粗半精镗34mm观油孔 18
工序100:钻孔并攻丝顶面的孔 18
工序105:钻孔并攻丝后面的孔 19
工序110:钻孔并攻丝前面的孔 20
工序115:钻孔并攻丝左面的孔 20
工序120:钻孔并攻丝右面的孔和锪沉孔并钻孔 21
工序125:钻深孔并攻丝 21
第三部分 夹具设计 22
一. 镗床的夹具设计 22