摘要
机械制造程设计的主要内容是机械加工工艺规程编制和钻削孔工序专用夹具设计。
在设计的过程中,学生能综合运用机械制造技术基础和其他课程的基本理论和方法,为了能够完成设计任务,必须竭尽所学,找到一种正确的设计方法。正确的制定一个零件的机械加工工艺规程。结合工艺设计内容,能够熟练的应用工艺计算方法,正确的进行工艺计算,如工艺参数、切削力、切削功率、切削速度、定位误差、夹紧力等。学生通过该课程设计,将所学理论与生产实践相结合,得到解决问题和分析问题能力的初步培养.
在三周的课程设计中,学生对机械工程学的兴趣将大有增长。他们将享受设计中的每一时刻。除此之外,他们将挖掘隐含的动力去学习机械自动化及材料科学的本专业课程.
Abstract
The desig
n course of Ma
nufacturi
ng are the mai
n co
nte
nts of a poi
nt of order processi
ng machi
nery a
nd drilli
ng holes for fixture desig
n process. I
n the process of the desig
n ,we Ca
n make comprehe
nsive use of machi
nery ma
nufacturi
ng tech
nology a
nd other courses based o
n the basic theories a
nd methods. I
n order to fi
nish the desig
n. We have to thi
nk about the method that make full use of what we have. Combi
natio
n of desig
n, the applicatio
n process ca
n be skilled method of calculati
ng the correct co
nduct of calculatio
n, such as tech
nical parameters, cutti
ng force, cutti
ng power, cutti
ng speed, positio
ni
ng error, the clampi
ng force, a
nd so o
n.Through the curriculum desig
n, Stude
nts will lear
n theory a
nd practice of combi
ni
ng productio
n, resolved the issue of capacity issues a
nd the i
nitial trai
ni
ng. I
n the course of three weeks of Ma
nufacturi
ng Desig
n, stude
nts’ i
nterest i
n mecha
nical e
ngi
neeri
ng has bee
n growi
ng rapidly. They e
njoy every mome
nt of the lecture. Besides, they will fou
nd large room for givi
ng full play of my late
nt e
nergy by studyi
ng the courses offered by departme
nts of i
ndustrial automatio
n a
nd materials scie
nce 目录 1.涡轮箱的工艺性分析及生产类型的确定1 1.1涡轮箱的用途1 1.2涡轮箱的技术要求1 1.3审查涡轮箱的工艺性2 1.4确定蜗轮箱的生产类型2 2确定毛坯、绘制毛坯简图3 2.1选择毛坯3 2.2确定毛坯的尺寸公差和机械加工余量3 3拟定蜗轮箱工艺路线5 3.1定位基准的选择5 3.2表面加工方法的确定5 3.3加工阶段的划分6 3.4工序的集中和分散6 3.5工序顺序的安排7 3.6确定工艺路线7 4.20H7的孔加工余量、工序尺寸和公差的确定9 5.20H7的孔切削用量的计算10 6.加工20mm的孔专用钻床夹具设计11 6.1夹具设计的任务11 6.2确定夹具的结构方案11 6.2.1确定定位原件11 6.2.2定位误差的分析与计算11 6.2.3确定导向装置11 6.2.4确定夹紧装置11 6.2.5夹紧力的计算12 7方案的综合评价与结论13 8.设计体会14 参考文献16 1.涡轮箱的工艺性分析及生产类型的确定 1.1涡轮箱的用途 涡轮箱主要用作减速器的箱体,用来支承涡轮蜗杆,其加工质量的优劣,将直接影响到涡轮与蜗杆相互位置的准确性及机器总成的使用寿命和可靠性。本箱体为典型的蜗杆下置箱体结构,涡轮箱通过74mm和132mm与20mm的孔分别与涡轮涡杆轴配合,其结构形状复杂,壁薄且厚度不均匀,外部为了增加其强度加有加强筋。 涡轮箱是涡轮蜗杆传动的基础件,因此应具有足够的刚度和强度,此外由于涡轮蜗杆机构是一个发热大的传动机构,还应要求箱体具备较好的散热能力。涡轮箱的主要工作表面74J7mm和20H7mm的轴承支撑孔和132H8mm的轴承孔和结合面的加工精度必需达到要求。因此对涡轮箱的输出输入轴承支撑孔的精度要求在设计工艺规时应予以保证。
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n course of Ma
nufacturi
ng are the mai
n co
nte
nts of a poi
nt of order processi
ng machi
nery a
nd drilli
ng holes for fixture desig
n process. I
n the process of the desig
n ,we Ca
n make comprehe
nsive use of machi
nery ma
nufacturi
ng tech
nology a
nd other courses based o
n the basic theories a
nd methods. I
n order to fi
nish the desig
n. We have to thi
nk about the method that make full use of what we have. Combi
natio
n of desig
n, the applicatio
n process ca
n be skilled method of calculati
ng the correct co
nduct of calculatio
n, such as tech
nical parameters, cutti
ng force, cutti
ng power, cutti
ng speed, positio
ni
ng error, the clampi
ng force, a
nd so o
n.Through the curriculum desig
n, Stude
nts will lear
n theory a
nd practice of combi
ni
ng productio
n, resolved the issue of capacity issues a
nd the i
nitial trai
ni
ng. I
n the course of three weeks of Ma
nufacturi
ng Desig
n, stude
nts’ i
nterest i
n mecha
nical e
ngi
neeri
ng has bee
n growi
ng rapidly. They e
njoy every mome
nt of the lecture. Besides, they will fou
nd large room for givi
ng full play of my late
nt e
nergy by studyi
ng the courses offered by departme
nts of i
ndustrial automatio
n a
nd materials scie
nce 目录 1.涡轮箱的工艺性分析及生产类型的确定1 1.1涡轮箱的用途1 1.2涡轮箱的技术要求1 1.3审查涡轮箱的工艺性2 1.4确定蜗轮箱的生产类型2 2确定毛坯、绘制毛坯简图3 2.1选择毛坯3 2.2确定毛坯的尺寸公差和机械加工余量3 3拟定蜗轮箱工艺路线5 3.1定位基准的选择5 3.2表面加工方法的确定5 3.3加工阶段的划分6 3.4工序的集中和分散6 3.5工序顺序的安排7 3.6确定工艺路线7 4.20H7的孔加工余量、工序尺寸和公差的确定9 5.20H7的孔切削用量的计算10 6.加工20mm的孔专用钻床夹具设计11 6.1夹具设计的任务11 6.2确定夹具的结构方案11 6.2.1确定定位原件11 6.2.2定位误差的分析与计算11 6.2.3确定导向装置11 6.2.4确定夹紧装置11 6.2.5夹紧力的计算12 7方案的综合评价与结论13 8.设计体会14 参考文献16 1.涡轮箱的工艺性分析及生产类型的确定 1.1涡轮箱的用途 涡轮箱主要用作减速器的箱体,用来支承涡轮蜗杆,其加工质量的优劣,将直接影响到涡轮与蜗杆相互位置的准确性及机器总成的使用寿命和可靠性。本箱体为典型的蜗杆下置箱体结构,涡轮箱通过74mm和132mm与20mm的孔分别与涡轮涡杆轴配合,其结构形状复杂,壁薄且厚度不均匀,外部为了增加其强度加有加强筋。 涡轮箱是涡轮蜗杆传动的基础件,因此应具有足够的刚度和强度,此外由于涡轮蜗杆机构是一个发热大的传动机构,还应要求箱体具备较好的散热能力。涡轮箱的主要工作表面74J7mm和20H7mm的轴承支撑孔和132H8mm的轴承孔和结合面的加工精度必需达到要求。因此对涡轮箱的输出输入轴承支撑孔的精度要求在设计工艺规时应予以保证。
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