CA6140床箱I轴加工工艺及花键夹具刀具设计毕业设计.doc

XXXX大学 毕 业 设 计 说 明 书 毕业设计题目: CA6140床头箱I轴加工工艺及花键夹具刀具设计 系 机电工程系 专业班级 07机制3班 姓 名 学 号 指导教师 摘 要 本次毕业设计的内容是设计CA6140床头箱主轴的加工工艺、夹具及铣刀的设计。轴是机器中的重要零件，有支持旋转等作用。而该轴也是CA6140中的重要零件之一，其的主要作用是通过皮带和带轮传递动力，该轴的主要工况是承受弯矩、扭矩和变形等，所以容易疲劳断裂，容易扭断、弯曲变形等。因此在设计工艺时需考虑到以上的工况情况，提高该轴的综合性能。因该轴的加工过程还需设计专用夹具，本次设计加工该轴的Φ38g6花键的夹具，在设计专用夹具时，不仅要考虑到加工花键的表面粗糙度和位置度的要求，还需要考虑到提高效率、降低成本、降低劳动强度等等。同时本次设计还有对加工Φ38g6花键的精铣铣刀进行设计，在设计此铣刀时，主要考虑加工花键的制造精度、轴心线的径向跳动允许误差和不等分累积误差等。 关键词：轴、工艺、夹具、花键铣刀。 Abstract The graduation design of the contents of the box design CA6140 spindle bed processing, milling and fixture design. - Axis machine is the important parts, such as a rotating support role. The shaft is the CA6140 one of the important parts, the main role is to pass a belt and pulley transmission power, The main axis of the state to bear moment, torque and deformation and, therefore, prone to fatigue fracture easily transtensional, bending deformation. So in the design process to be considered when the above conditions, enhance the performance of the shaft. As the axis machining process needed special fixture design, the design of the processing time of the Axis of Φ 38g6 spent crucial fixture. in the design of special fixture, not only to take into account the processing spline surface roughness and location of the request, it is also necessary to consider that increase efficiency and reduce cost, reduce labor intensity, and so on. In addition, the designs have to spend processing Φ 38g6 bond precision milling cutter design, the design of this cutter, the main consideration processing spline manufacturing precision, the radial axis beating tolerances and ranges hours accumulated error. Keywords:Shaf； Crafts； Fixture； Spline milling 目 录 摘 要 I 序 言 1 绪 论 2 第一章 加工工艺规程的制订 3 1.1.课题简介 3 1.2、零件的分析 3 1.2.1零件的功用 3 1.2.2计算生产纲领，确定生产类型 3 1.2.3零件的工艺性分析和零件图的审查 3 1.3 零件工艺规程设计 4 1.3.1确定零件生产类型 4 1.3.2确定零件毛坯的制造形式 4 1.3.3拟定零件的机械加工工艺路线 4 1.3.4加工