1、 基于基于 UGUG 平台的手机后盖的模具毕业设计平台的手机后盖的模具毕业设计 摘摘 要要 注射成型是热塑性塑料成型的主要方法之一， 可以一次成型形状复杂的精密塑件。 本设 计是手机后盖塑料模具的设计，对零件结构进行了工艺分析，采用 ABS 作为塑件的材料。 采用单分型面，根据模具的型腔数目以及最大注塑量、注射压力、锁模力、模具的安装尺寸 等因素选择了注射机，选择成型零部件的尺寸；采用扇形浇口；利用直导柱导向，斜滑顶杆 顶料,斜滑顶杆侧抽，同时完成侧抽和顶出完成脱模，并对模具的材料进行了选择，如此设 计出的结构可确保模具工作运行可靠。 对模具结构与注射机的匹配进行了校核。 用 UG 绘制 出模
2、具三维图形及 AutoCAD 绘制了一套模具装配图和零件图，最后利用 UG 对型芯和型腔 进行了加工仿真，制定了符合要求的数控加工工艺过程。 关键词关键词：手机后盖； UG；扇形浇口；数控加工； ABS；注塑模具； Injection molding is one of the key ways of thermoplasticity plastic molding which can mold precise plastic part with complex shape. The design is a plastic mould design of the back over of mo
3、bile, which analysis part structural with ABS as the material of plastic part. The design adopt single parting surface, choose injection machine, the dimension of molding parts according to the factors of the number of molding die cavity and the maximum injection, injection pressure, locking force a
4、nd so on, adopt fan gate, use straight guide pillar guiding, slanting ejector to eject materials and side core pulling to side core pulling and ejecting, and choose the materials of mold, which can ensure the reliability of molding. This paper check the matching of the structure of molding and injection machine, draw the three dimension of molding with UG a set of molding assembly drawing and part drawing with AutoCAD, utilize UG to simulate machining of mould core and mould cavity and make
