毕业设计论文活塞杆机械加工工艺及斜孔夹具设计.doc

摘要 本文从零件的分析，工艺规格设计，及加工过程中专用夹具的设计三个方面，阐述了活塞杆的工艺制造的全过程，尤其在工艺规程设计中，我们运用已掌握的机械制造理论及计算公式，确定了毛坯的制造形式，选择了基面，制定了工艺路线，确定了机械加工余量、工序尺寸和毛坯尺寸，最后确定了切削用量及基本工时。 在实际生产中由于零件的结构形状、几何精度、技术条件和生产等要求不同，一个零件往往要经过一定的加工过程才能将其由图样变成成品零件。因此，机械加工工艺人员必须从工厂现有的生产条件和零件的生产出发，根据具体，在保证加工质量、提高生产效率和降低生产成本的前提下，对零件上的各加工表面选择适宜的加工方法，合理地安排加工顺序，科学地拟定加工工艺过程，才能获得合格的机械零件。，为以后走上工作岗位打下基础 关键词：活塞杆，工艺路线，加工余量，工序尺寸，切削用量，基本工时 Abstract Elaborated the piston rod manufacturing process, especially in the design process, we use the mastered machinery manufacturing theory and calculating formulas, the blank manufacturing form, choice of base, develop process, determine the machining allowance, process dimension and blank size, finally to determine the cutting parameters and the the basic working hours. In practical production, as part of the structure shape, geometric precision, technical conditions and mass production requirements are different, a parts often have to pass through a processing process can be made into finished parts drawing.Therefore, the machining process must be from the factory production conditions and the existing parts of the production batch, according to the specific circumstances, to guarantee the processing quality, improve production efficiency and reduce production cost under the premise of the parts, the processing surface to choose a suitable processing method, reasonable arrangements for processing order, scientific development process process, in order to obtain qualified mechanical parts.Through this graduation design, we initially tried to process the whole process of design, we will go to work to lay a good foundation. Key words: piston rod, process route, the surplus of processing, process size, cutting parameters, the basic working hours 目录 1.零件的工艺分析及生产类型的确定 - 5 - 1.1零件的功用、结构及特点 - 5 - 1.2零件的技术要求 - 5 - 1.3零件的工艺性 - 5 - 1.4确定零件的生产类型 - 6 - 2.毛坯的选择 - 6 - 2.1确定毛坯的类型 - 6 - 2.2确定毛坯的制造方法和尺寸及其公差 - 6 - 2.3确定毛坯的技术要求 - 7 - 3.基准的选择 - 7 - 3.1粗基准的选择 - 7 -