十字头滑套的加工工艺及夹具设计资料

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课题名称 十字头滑套的加工工艺与夹具设计

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指导教师:

二〇一六年四月

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1 摘 要

十字头滑套,典型的配套类零件,主要由车床加工完成,用途较大,尺寸精度,表面质量和公差的准确度要求较高,但是数控车床加工只是设计表面粗加工和精加工部分,最主要的钻孔由夹具来完成。

此设计是对十字头滑套零部件加工的分析和工艺的分析及夹具的制造。工艺分析为零件的尺寸和加工工序的分析,要确定零件的尺寸和零件的加工顺序计算切削的多少。夹具绘图包含零件图和装配图,用此夹具夹紧加工的零件然后钻孔。

关键词:夹具;工艺设计;十字头滑套 毕业设计(论文)报告纸

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2 Abstract

Cross sliding sleeve, a typical supporting parts, mainly completed by lathe

processing, use large, dimensional accuracy, surface quality and the accuracy of the

tolerance requirement is higher, but the numerical control lathe processing just design

surface roughing and finish machining parts, the main drilling are done by the fixture.

This design for the crosshead sliding sleeve parts machining process analysis and

process design analysis and fixture manufacturing. The size of the process analysis of

parts and the machining process analysis, to determine the size of the parts and

components processing sequence calculation of cutting. Fixture manufacturing can be

divided into the design of the part drawing and assembly drawing, want to use the

fixture clamping part and drilling.

Key words: fixture;process design;cross sliding sleeve

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3 目 录

摘 要

Abstract

第一章 绪 论 ...................................................................................................................... 4

1.1引言 ................................................................................................................................ 4

1.2设计的背景 .................................................................................................................... 4

1.3本文研究的内容 ............................................................................................................ 4

1.4十字头滑套的内容和设计意义 .................................................................................... 4

第二章 零件的分析 ............................................................................. 错误!未定义书签。

2.1零件的作用 .................................................................................. 错误!未定义书签。

2.2零件的工艺分析 .......................................................................... 错误!未定义书签。

第三章 加工工艺设计 ........................................................................................................... 7

3.1 毛坯的制造 ................................................................................................................... 7

3.2 基面的选择 ................................................................................................................... 7

3.3 制定大概加工步骤 ....................................................................................................... 7

3.4 机械加工余量、工序尺寸及毛坯尺寸的确定 ........................................................... 8

3.5 确定切削用量及基本工时 ........................................................................................... 9

第四章 夹具的设计 ............................................................................................................... 14

4.1夹具的特点 .................................................................................................................. 14

4.2夹具的设计要点 .......................................................................................................... 14

4.3设计任务 ...................................................................................................................... 14

4.4定位方案 ...................................................................................................................... 15

4.5夹紧方案 ...................................................................................................................... 16

4.6夹具零件 ...................................................................................................................... 18

4.6.1钻套选择 .............................................................................................................. 18

4.6.2钻模板 .................................................................................................................. 18

4.6.3夹具体 .................................................................................................................. 19

4.7钻床夹具总装图 .......................................................................................................... 19