A-5-夹具装配图A0
前刹车调整臂外壳的机械加工工艺及钻Ф13孔及Ф16锪孔夹具设计
摘要
夹具的作用是将工件定位，以使加工工件获得相对于机床和刀具的正确位置，并把工件可靠地夹紧。夹具的利用率高，经济性好，使用元件的功能强并且数量少，缩短停机时间、提高生产效率。所以夹具的设计是必不可少。
本次设计的题目是外壳-前刹车调整臂的机械加工工艺及钻削Ф13圆柱孔及Ф16锪孔夹具设计。外壳-前刹车调整臂对前刹车调整臂进行支撑保护。结合零件加工的重点和难点，从零件的结构分析入手，合理的进行定位基准选择、夹具的设计、各种刀具参数选择以及切削用量的选择等。在安排工艺过程时，根据加工要求不同，需要粗精加工分开。另外还确定了切削参数，工时定额，并填写了工序卡片。还设计了一套钻削Ф13圆柱孔及Ф16锪孔的夹具，并进行了定位误差分析。
关键词：外壳、前刹车调整臂、Ф13、Ф16、钻削
Abstract
The function of the fixture is to locate the workpiece so that the workpiece can be positioned correctly relative to the machine tool and cutter, and the workpiece can be clamped reliably. The fixture has the advantages of high utilization rate, good economy, strong function and less quantity of components, shortening downtime and improving production efficiency. Therefore, fixture design is essential.
The subject of this design is shell-front brake adjusting arm machining technology and drilling_13 cylindrical holes and_16 holes clamp design. The shell front brake adjuster supports the front brake adjustment arm. Combining with the key and difficult points of parts processing, starting from the structural analysis of parts, reasonable selection of positioning datum, fixture design, various tool parameters selection and cutting parameters selection. When arranging the technological process, rough finishing is required to separate according to different processing requirements. In addition, the cutting parameters and working hours quota were determined, and the process cards were filled out. A fixture for drilling 13 cylindrical holes and 16 spot holes is also designed, and positioning error analysis is carried out.
Key words shell, front brake adjusting arm, 13, 16, drilling
目录
摘要I
Abstract II
第一章绪论1
1.1夹具概念1
1.2夹具的分类1
1.2.1按夹具的通用特性分类1
1.2.2按夹具的动力源分类2
第二章零件的分析3
2.1零件的作用3
2.2零件的组成表面、加工要求、技术要求分析3
2.2.1零件的组成表面3
2.2.2零件的加工要求4
2.2.3零件的技术要求4
第三章零件的工艺规程设计5
3.1确定毛坯的制造形式5
3.2基准的选择与确定5
3.3加工工艺路线的确定6
3.3.1工艺路线方案一6
3.3.2工艺路线方案二6
3.3.3工艺路线的确定7
3.4加工机床及加工装备的选择7
3.5确定加工余量9
4.2计算切削用量及基本时间10
第四章专用夹具设计25
4.1定位方案及装置的确定25
4.1.1设计定位方案应满足的要求25
4.1.2定位方案和装置的确定25
4.2夹紧方案及装置的确定26
4.2.1设计夹紧装置应遵循的原则26
4.2.2夹紧方案及装置的确定26
4.3夹具体的设计26
4.4导向装置—钻套的确定27
4.5钻削力的计算27
4.6夹紧力的计算28
4.7定位误差的分析29
结论30
致谢31
参考文献32
A-4-外壳-前刹车调整臂-零件图A3
A-3-外壳-前刹车调整臂-毛坯图A3
A-6-夹具体A1
A-1-字数统计
A-2-所包含文件预览
夹具设计部分
过程卡
零件的组成表面、加工要求、技术要求分析
加工机床及加工装备的选择
计算部分预览
说明书前三页
工序卡
