492发动机曲轴箱铣主轴孔卡瓦槽夹具设计[精品].doc

此论文附带相关CAD图纸、开题报告等内容，需要者请看文档介绍！ X X 学 院 毕业设计(论文) 课 题 名 称 492发动机曲轴箱铣主轴孔卡瓦槽夹具设计 学 生 姓 名 学 号 院(系)、专业 指 导 教 师 职 称 年 月 日 内容提要 本次进行的是429发动机曲轴箱铣主轴孔卡瓦槽夹具设计。铣削加工一般切削力较大，且是多刀齿断续切削，其大小和方向瞬时急剧地变化，尤其是刀齿切入和切出的过程中会在工件上产生冲击和振动。所以，设计铣床夹具时应特别考虑工艺系统的刚度，夹具要有足够大的夹紧力。夹具上一般有确定与刀具间相对位置的对刀装置和确定它在车床工作台方向的定位键，这也是铣床夹具结构的主要特征。 本次夹具设计的(1）研究原始资料，明确设计要求(2）拟定夹具结构方案，绘制夹具结构草图确定定位方案，选择定位元件③确定其它④确定夹具的形式和夹具的总体结构。 （3）绘制夹具的装配草图和装配图； （4）绘制夹具的零件图。 经过设计和讨论，终于圆满地完成了设计任务。本次设计整个设计过程条理清晰，能让读者明白整个过程。力求结构合理，计算准确，经济可靠。本设计的创新之处在于简化了铣床夹具的结构设计,使其结构更简便,同时也能满足设计要求，可以用于实际生产中。 关键词：定位；夹紧 夹具 Abstract This time carries on is 429 engine crankcase mill host axle hole bottom wall and anchor packer trough jig design. The milling processing general cutting force is big, is precisely the multi-knife tooth off and on cuts, its size and the direction instant change suddenly, in particular the knife tooth cuts into in the process which and cuts to be able on the work piece to have the impact and the vibration. Therefore, designs time the milling jig should consider specially the craft system the rigidity， the jig must have the enough big clamping force. This design general steps : (1) original research data clearly design requirements ; (2) Prepare jig program structure, the structure of the draft map jig; ①Determine positioning program choices positioning components; ② Determine Jig; ③ Identify specific kits and other devices; ④ mapping jig master plan . After the design and discussion, and finally the successful completion of the design task. The current design of the entire design process lucid, readers can understand the whole process. To structured, accurate calculation, the economy reliable. The design innovations to simplify the structure of the drilling template design to the structure simpler, but also to meet