尾座体零件机械加工工艺规程及夹具设计【机械函授自考毕业设计含说明书+CAD图纸】

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尾座体工艺文件过程卡工序卡.doc

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尾座体孔17的夹具装备图.dwg

尾座体毛坯图.dwg

尾座体零件图.dwg

零件图1钻孔夹具角铁.dwg

零件图3钻套.dwg

零件图4顶杆.dwg

零件图5底座.dwg

零件图6压块.dwg

图2摇杆组件.dwg

尾座体零件机械加工工艺规程

及夹具设计

   摘要：我要完成的任务是写出尾座体零件的加工工艺规程和设计加工孔φ17的专用夹具。查看零件图找出主要的面和孔，分析它们的结构和工艺特征，计算出重要的参数，选择出合适的机床、夹具、刀具等。编写工艺步骤。设计孔φ17的夹具，以导轨平面作为主定位面限制3个自由度，75度斜面作为侧定位面限制2个自由度。以更好的保证孔φ17的位置和加工精度。再在孔φ17的不加工面找个定位加紧点限制一个自由度，确保六点定位。

   关键词：加工工艺;夹具;尾座体;设计

The tailstock body parts machining process planning and the fixture design

Abstract:This topic is mainly design that designs the tail a body of some tool machine to process the craft and tongses, adopting to design first in the design a body of that tail processes the craft at according to process the craft to select by examinations the tongs of the project of the design and concrete design of the tongs;But the point of design is the design of the tongs.Because bore 17 of accuracy have high request, and position the size error margin small, for guarantee the position of the bore and process the accuracy we certainly at process the bottom to face of time pass to draw the line to find out the bottom to face of process the amount of remaining.Thus can with better assurance bore 17 of position and process the accuracy!Process the bore 17 of time is opposite for assurance to run parallel with B face of in the A we have to design accurately with the AN and B faces to settle for of tongs!Return in consideration of a degree of the work piece and the error margin of the cylinder degrees are small, the furniture that we design have to the bore 17 of tongs fixed position is accurate, and process the vibration of time small, that have to in the bore 17 of neighborhood seek a fixed position to step up the point.

Keyword : process the craft；tongs；a body of tail；design

目   录

摘要 I

Abstract II

目录 III

1绪论 1

1.1  设计的依据、背景以及研究意义 1

1.2  国内外研究现状 1

1.2.1  国外研究现状 1

1.2.2  国内研究现状 2

1.3  主要研究内容 3

2 零件分析 4

2.1  零件的特点 4

2.2  零件工艺分析 4

3  机械加工工艺规程设计 5

3.1  确定毛坯的制造形成 5

3.2  基面的选择 5

3.3  制定工艺路线 5

3.3.1  工艺路线方案一 5

3.3.2  工艺路线方案二 6

3.3.3  工艺方案的比较分析 6

3.4  选择加工方法，制定工艺路线 8

3.4.1  孔的端面孔 8

3.4.2  内孔 9

3.4.3  燕尾面加工 9

3.4.4  导轨面刨削加工 10

3.4.5  孔的内径表面 10

3.5  确定切削用量及基本工时 11

3.5.1  铣削的孔的两端面 11

3.5.2  钻孔 12

3.5.3  铣削的孔的端面 12

3.5.4  铣削M6的端面 13

3.5.5  钻、M6孔 14

3.5.6  扩孔 15

3.5.7  加工的倒角 15

3.5.8  扩孔 15

3.5.9  刨削导轨面 16

3.5.10  铣削22的退刀槽 18

3.5.11  刨削燕尾面 18

3.5.12  镗削（精镗、细镗的孔） 19

3.5.13  磨削（导轨面、燕尾面） 19

3.5.14  镗削（镗削的孔、镗削的沉降孔） 21

3.5.15  攻丝 22

3.5.16  导轨面配刮 22

3.5.17  珩磨的孔 22

3.5.18  精加工的孔研配 23

3.5.19  终检 23

4 夹具设计 24

4.1  问题的提出 24

4.2  夹具设计 24

4.2.1  主视图孔的加工夹具 24

5  结论 27

参考文献 29

致谢 31