S195柴油机机体三面精镗组合机床总体设计及左主轴箱设计【17张图/14800字】【优秀机械毕业设计论文】

文档包括:
说明书一份,42页,14800字左右.
任务书一份.

图纸共17张:
A0-尺寸联系图.dwg
A0-工序图.dwg
A0-主轴箱.dwg
A0-左主轴箱装配图.dwg
A2-前盖.dwg
A3-齿轮.dwg
A3-传动轴.dwg
A3-动力头齿轮.dwg
A3-后盖.dwg
A3-撒油盘.dwg
A3-上盖.dwg
A3-手柄轴.dwg
A3-油泵传动齿轮.dwg
A3-主轴1.dwg
A3-主轴2.dwg
A4-销套.dwg
A4-轴盖.dwg

摘 要

Ｓ195柴油机加工精度要求高,特别是机体气缸套孔止口深度公差,大跨度等直径同轴孔、平衡轴孔孔径公差,大悬臂气缸孔孔径公差,曲轴孔与气缸孔垂直度,曲轴孔与平衡轴孔、曲轴孔与凸轮轴孔轴心线平行度,气缸套孔止口面与气缸孔轴心线垂直度等的精度要求较高。机体加工中,精镗孔工序的加工质量将直接影响柴油机的功率、油耗、噪声等性能。同时,由于Ｓ195柴油机的生产批量较大,因而要求该工序的加工设备具有较高的生产效率和自动化程度。然而,目前国内现有的加工设备都不能很好地满足上述加工质量和生产效率等方面的要求,这在一定程度上制约了Ｓ195柴油机的性能保证和生产产量的提高。作者设计的Ｓ195柴油机机体三面精镗孔组合机床,是在调研的基础上,吸收了镗床设计的优点,根据具体情况设计、制造而成,如投入生产连续使用,将会获得满意的效果。

关键词: 组合机床 柴油机　镗削　

Abstract

S195 diesel engine expects machining accuracy much, especially organism air cylinder sets of hole stop mouthfuls of degree of depth public errand, Diameter, shaft hole, balanced shaft hole aperture public errand, such as large span,etc., big cantilever air cylinder hole aperture public errand , The shaft hole of song and air cylinder hole vertical degree, shaft hole of song and balancing the shaft hole, shaft hole of song and shaft hole of cam axis line parallel degree, Air cylinder sets of hole stop and expect relatively much with air cylinder hole axis line precision of vertical degree,etc. the mouth. In the organism is processed, the processing quality of the precise bore hole process will influence the performance, such as power, oil consumption, noise of the diesel engine,etc. directly . Besides, because the production lot of S195 diesel engine is relatively old, require the processing equipment of this process to have higher production efficiency and automatic degree. However, the domestic and existing processing equipment can't well meet the above-mentioned requests for processing the quality and production efficiency,etc. At present, This restrain S195 performance of diesel engine from guaranteed and produces the improvement of the output to a certain extent. Three precise bore holes of organism of S195 diesel engine designed now make up the lathe , it is on the basis of surveying and study, Have absorbed the merit that the boring machine is designed, succeed according to concrete conditions design and manufacture, Such as putting into production using in succession, will obtain the satisfied result .

Key words: combined machine; diesel engine; boring

0 前 言 1
1.总体方案论证 3
1.1影响组合机床方案制定的主要因素 3
1.1.1被加工零件的加工精度和加工工序 3
1.1.2被加工零件的特点 3
1.1.3零件的生产批量 4
1.1.4机床的使用条件 4
1.2 机体的定位与夹紧 4
1.3. 确定机床的配置形式及结构方案 4
2. 组合机床总体设计及计算 5
2.1被加工零件工序图 5
2.1.1被加工零件工序图的设计 5
2.1.2主轴箱的分布 5
2.2加工示意图 6
2.2.1加工示意图的编制方法 6
2.3动力部件的选择 8
2.4组合机床生产率的计算 10
2.4.1机床实际生产率的计算 10
2.4.2理想生产率Q 12
2.4.3机床负荷率 12
2.4.4生产率计算卡 12
2.5机床联系尺寸图 14
2.5.1联系尺寸图的作用 14
2.5.2机床装料高度的确定 14
2.5.3夹具轮廓尺寸的确定 15
2.5.4中间底座尺寸的确定 15
2.5.5动力部件总选种的确定 16
3.左主轴箱的设计及计算 17
3.1．绘制主轴箱设计原始依据图 17
3.2．主轴结构形式的选择及动力计算 18
3．2．2主轴结构形式的选择 18
3．2．2主轴直径和齿轮模数的初步确定 18
3.2.3主轴箱的动力计算及主轴直径的确定 19
3.3．传动系统的设计计算 23
3.3.1主轴位置的分析及传动比的分配 23
3.3.2确定驱动轴的转速，转向极其在主轴箱上的位置 23
3.3.3主轴箱的润滑、手柄轴的设置 23
3.4．主轴箱坐标计算 24
3.4.1轴坐标系原点的确定 24
3.4.2主轴箱坐标计算的顺序 24
3.4.3主轴坐标的设置 24
3.4.4传动轴坐标计算 26
3.4.5坐标验算 29
3．5校核计算 30
3．5．1轴的校核计算 30
3．5．2轴的精确校核 34
3．5．3轴承寿命计算 34
3．5．4圆柱齿轮的疲劳强度的校核 35
3．5．5键的校核 36
3．6标准件的选择及其它 36
3．6．1叶片油泵的型号选择 36
3．6．2螺塞 37
3．6．3进给机构的选择 37
3．6．4主轴箱的润滑 37
4. 结 束 语 38
工作小结与致谢 39
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