设计描述：

文档包括:
word说明书一份，共33页，约18000字
任务书一份
开题报告一份
外文翻译一份

CAD版本图纸，共24张

摘  要
    铣刀头座体是铣床加工的重要组成元件之一，它的制造工艺对铣削加工的尺寸精度有显著的影响。本课题

的目的是对铣床的铣刀头座体的机械制造工艺及夹具设计。在第一部分的制造工艺设计中，主要的工作是铣刀

头座体的毛坯件的铸造，加工工艺路线的设定，机件的工艺查阅和计算，编制主要的工艺文件。
    铣刀头座体的夹具设计是这次课题的重要的部分，也是本次课题的难点分，夹具的设计主要是铣刀头的定

位和夹紧。主要会影响加工元件的尺寸精度和位置精度。在本次课题中主要采用的是不完全定位方式，这种通

用的定位方式的夹具的结构比较简单，并且有良好的定位的稳定性。夹紧机构主要采用螺旋式，这种结构的构

成比较简单，自锁性能好，可靠性能高。在确定夹紧方式后绘出主要的零件图和装配图。

关键词：铣床；铣刀头座体；制造工艺；夹具设计

ABSTRACT
    Milling cutter head base is an integral component of milling manufacturing process and has a

significant impact on the dimensional accuracy of milling . The purpose of this project is

generally milling cutter head base mechanical manufacturing process and fixture design. In the

first part of the manufacturing process design, the main work is casting of milling cutter head

base , machining and line set, mechanical inspection and calculation process, the preparation of

the main process documents.
    The Fixture Block of milling cutter head base is an important part of this project and also

is a part of this difficult subject, mainly milling fixture design is clamping and positioning.

these will affect the processing of the dimensional accuracy and position accuracy of main

components. The issue is used three holes of the positioning in one surface . the positioning of

such a general way the fixture structure is relatively simple and has good positioning stability.

Clamping institutions are mainly spiral , the composition of this structure is relatively simple,

self-locking performance, high reliability. drawing three-dimensional and assembly drawings.

Key words: milling machine; milling cutter head base; manufacturing processes;fixture design

目  录
摘

要...............................................................................................

.................................................III
ABSTRACT.........................................................................................

..........................................IV
目

录...............................................................................................

..................................................V
1 绪

论...............................................................................................

..............................................1
  1.1 课题背

景...............................................................................................

..............................1
    1.1.1铣刀头座体的概

述...............................................................................................

..........1
    1.1.2铣刀头的现状和发展趋

势.............................................................................................1
    1.1.3铣刀的分

类...............................................................................................

......................1
    1.1.4铣刀的结构和构

成...............................................................................................

..........2
1.1.5夹具的现状及发展趋

势...............................................................................................

..2
  1.2 本设计的内容及目

的...............................................................................................

...........3
2 铣刀头座体的机械加工工艺规程设

计.....................................................................................5
  2.1 铣刀头座体的工艺分析及生产类型确

定..........................................................................5
    2.1.1 铣刀头座体的工艺分

析...............................................................................................

5
    2.1.2 铣刀头座体的生产类

型...............................................................................................

6
  2.2 确定毛坯的制造类

型...............................................................................................

...........6
  2.3 基准的选

择...............................................................................................

...........................6
    2.3.1 粗基准的选

择...............................................................................................

................6
    2.3.2 精基准的选

择...............................................................................................

................7
  2.4 零件表面加工方法的确

定...............................................................................................

...7
  2.5 工艺路线的制定与分

析...............................................................................................

.......7
    2.5.1 工艺路线的拟

定...............................................................................................

............7
    2.5.2 工艺方案的分析与确

定...............................................................................................

8
  2.6 机械加工余量、毛坯工序尺寸的确

定............................................................................10
2.6.1 孔的加工余

量...............................................................................................

..............10
2.6.2 平面的加工余

量...............................................................................................

..........10   
    2.6.3 切削用量及工时的计

算.............................................................................................11
3 铣刀头座体专用夹具设

计...............................................................................................

........23
  3.1 夹具设计的原则和要

求...............................................................................................

.....23
    3.1.1 夹具设计的要

求...............................................................................................

..........23
    3.1.2 六点定位原

则...............................................................................................

..............23
  3.2  镗夹具的设

计...............................................................................................

...................24
    3.2.1 确定定位方

案...............................................................................................

..............24
    3.2.2 设计夹紧机

构...............................................................................................

..............24
 
3.2.3 夹紧力的计

算...............................................................................................

..............25
3.3.4 确定镗夹具总体结构和尺

寸.....................................................................................25
3.3.5 使用说

明...............................................................................................

......................26
  3.3 钻孔夹具的设

计...............................................................................................

.................27
    3.3.1 定位基准的选

择...............................................................................................

..........27
    3.3.2 切削力和夹紧力的计

算.............................................................................................27
3.3.3 定位误差分

析...............................................................................................

..............27
3.3.4 确定定位方

案...............................................................................................

..............28
3.3.5 设计夹紧机

构...............................................................................................

..............28
3.3.6 确定钻夹具总体结构和尺

寸.....................................................................................28
3.3.7 使用说

明...............................................................................................

......................29
4 结论与展

望...............................................................................................

................................31
  4.1 结

论...............................................................................................

.....................................31
  4.2 不足之处与展

望...............................................................................................

.................31
致

谢...............................................................................................

................................................32
参考文

献...............................................................................................

........................................33