超声珩磨机床的设计【8张图/21600字】【优秀机械毕业设计论文】

文档包括:
说明书一份。57页。21600字左右。
开题报告一份。
外文翻译一份。

图纸共8张，如下所示
A0-总图.dwg
A0-装配图.dwg
A1-珩磨头.dwg
A2-主轴.dwg
A2-胀锥.dwg
A2-螺母套筒.dwg
A3-套筒.dwg
A4-油石.dwg

摘 要
超声加工广泛应用于磨削加工，已经成为新一代精密加工发展方向之一。本文主要是从珩磨应用这一角度来作一个具体介绍。
从介绍超声加工原理和特点与珩磨的特点、原理以及应用入手，本设计引出超声珩磨加工，介绍其原理应用并详细阐述超声波振动珩磨头的基本结构及设计要点。在以上基础上，针对设计目标分别对超声波振动珩磨的各个组件进行结构和理论设计与分析并校核。珩磨是一种固结磨粒压力进给切削的精整加工方法，不仅能切除较大的加工余量而且能有效的提高工件的尺寸精度和形状精度、降低工件表面的粗糙度。珩磨主要加工内孔，在一定条件下也可以加工外圆、平面、球面、齿面。珩磨轨迹是交叉网纹，珩磨加工变质层很小能提高工件的使用寿命，因为珩磨油石磨粒受两个方向的磨削阻力所以它有自锐作用。珩磨与主轴一般采用浮动连接，符合光整加工的的浮动加工原理。为了改善珩磨加工的使用性能可采用分粗、精珩磨的平顶珩磨。目前珩磨正向改善珩磨油石组合安装的方向发展，以便实现一次加工就能实现粗珩和精珩两到工序。

关键词：超声加工 珩磨 浮动连接

Abstract
Ultrasonic processing is widely applied in the process of rubing, already becoming a new generation of developing direction of accuratelly processing. This study mainly uses this angle about how to practice honing operation to make a concrete introduction. 
From introducing the characteristics and principle of ultrasonic processing and the use of honing, it is drawing ultrasonic honing processing , recommending its principle use and explaining ultrasonic vibration basic structure of the head of honing and the main point in detail. On the basis of the summary above , this study will give a design of structural and theoretical of each package of ultrasonic vibration honing separately to the designed object,and of course analyse and check it. It is a kind of solid knot that honing whet is to process the method when a pressure enter to slice, not only can it cut off bigger process but the amount of remaining and size accuracy and shape accuracy of the ability valid exaltation work piece, lower rough degree of a surface of work.The honing whets to mainly process inside the bore, can also process the outside circle, flat surface, surface of sphere under the condition of certain.The honing whet is to cross the net surface, the honing whets is to process to change the layer very small and it can raise the service life of the work piece, because the honing whets of the oil stone is to pare the resistance so it has the function of cutting .The honing whets is to adopt the conjunction with principal axis generally, matching the light processed float.Whet to process ,for the sake of the improvement of the function , can adopt the an accurate honing.Currently the honing whet just the direction development that whet the oil stone combination to press to pack toward the improvement honing , in order to carry out to process once and then can carry out the thick honing and the accurate honing to arrive the work preface.
Keyword: Processing ultrasonically Honing Floating connector

目 录

前 言 1
1 绪论 3
1.1珩磨加工特点及应用范围 3
1.1.1珩磨加工 3
1.1.2珩磨加工特点 4
1.1.3珩磨工艺应用范围 5
1.2珩磨加工的工作原理 5
1.2.1珩磨加工的原理 5
1.2.2珩磨运动过程 6
1.2.3珩磨的切削过程 7
2珩磨头的设计 10
2.1珩磨头设计因素及要求 10
2.1.1珩磨头设计时应考虑的因素 10
2.1.2对珩磨头结构的基本要求 10
2.2珩磨头的结构形式 12
2.2.1通用珩磨头 14
2.2.2小孔珩磨头 15
2.2.3大孔珩磨头 20
2.2.4平项珩磨头 20
2.2.5特殊珩磨头 21
2.3珩磨油石 23
2.3.1珩磨油石的性能 24
2.3.2珩磨油石的规格及数量 28
2.3.3珩磨油石的连接方式 30
2.4常见的珩磨缺陷和解决措施 31
2.4.1圆度误差超差 31
2.4.2孔的直线度误差超差 31
2.4.3孔的尺寸超差 32
2.4.4珩磨表面粗糙度达不到工艺要求 32
2.4.5珩磨表面刮伤 32
3超声珩磨 34
3.1 珩磨加工 34
3.1.1 珩磨加工特点 34
3.1.2珩磨工艺应用范围 34
3.2 超声珩磨工作原理及加工特点 35
3.2.1 超声珩磨工作原理 35
3.2.2超声珩磨加工特点 37
3.3换能器的选用 38
3.3.1换能器工作原理 38
3.3.2换能器的分类 39
3.3.3换能器的选择 41
4 浮动连接装置与回复装置 43
4.1动连接浮装置 43
4.2 回复装置 45
结束语 48
致 谢 50
参考文献 51