1、 I 摘要 本次毕业设计题目是座体 01042 零件的工艺工装设计及 CAD/CAM，来源于无 锡鹰普股份有限公司。 首先，依据零件图纸上的设计尺寸，利用三维软件 Pro/E 对零件进行三维造 型并在此基础上对其进行模具设计，内容包括：定位、夹紧方式的选择，分型面、 浇注系统、凸凹模、模座等的设计。 由于零件的内腔形状比较特殊，因此需要一块水溶型芯成型，同时设计出合 理的定位方案。由于是机器压紧，开模时候工件容易取出，所以不用顶出机构。 然后，制定出零件加工工艺规程,包括加工方法的选择、加工路线的拟订、加 工刀具选择，根据工艺规程计算出工艺参数并制作出相应的工艺卡片。该零件利 用加工中心加、车
2、床、钻床，共需要六道工序， 包括粗、精铣平面，钻、扩、铰 孔，攻螺纹等工步。每道工序包含了一定量的加工内容，体现出工序集中原则， 保证了各个加工表面及孔间的相互位置精度，提高生产效率。同时，选择两套工 序进行专用夹具设计。确定每套夹具的定位及加紧方式，两套夹具均采用一面两 销定位方式，均是压板压紧。 关键词：三维造型；模具；工艺卡片；加工中心夹具 II Abstract The title of this graduation design is the technology of the base part 01042 of the process tooling design and it
3、s CAD/CAM, from the Wuxi impro Co.LTD. First of all, according to the part design drawing, mold is designed by the 3D software Pro/E. Contents include: the choice of the ways of positioning, clamping, the parting surface, gating system, and mold design, mold base, etc. Due to the parts of the inner
4、cavity shape is quite special, so there a water soluble needed core molding, and reasonable positioning scheme is designed at the same time. Because it is compacted by machine , when open mold the workpiece is easy to take out.so there is no need for ejection mechanism. Then work out the parts proce
5、ssing process procedures, including the selection of machining method, the formulation of processing route, processing cutting tool selection, according to the procedure to calculate the process parameters and making the corresponding process card.The parts need total six procedures on machining cen
6、ter, lathe, drilling machine ,including the coarse and fine milling plane, drilling, expanding, reaming, tapping screw, step work.Each working procedure contains a certain amount of processing content, reflects the principle of process focus ensure the each other between each processing surface and hole position accuracy, improve production efficiency.At the same time, choose two sets of processes to design special fixture. Determine each fixture locating and clamping method, two sets of fixtu
