基准自由的零件封装夹具及其工业化瓶颈、策略与技术

介绍了基准自由的零件封装(Reference Free Part Encapsulation—RFPE)技术,剖析了影响RFPE技术工业化的瓶颈,研究了相应的工业化策略,提出和实现的基于通用元件的主动寻位技术,解决了任意形状工件的定位问题,使工件的定位精度与夹具的原始误差无关;提出并实现的多元素合金填料和填料注入工艺,使填料较好地满足了RFPE夹具的综合要求,尤其是解决了毛坯“漂移”和“沉陷”问题;提出和实现的可拆装、可变容积的多箱、多板块结构的箱体生成技术,解决了工件一次安装后的任意表面的加工问题,并支持了填料注入工艺的改善及其相关参数的优化。

Bottleneck, Tactics and Technique in Industrialization of Reference Free Part Encapsulation Fixture

Reference free part encapsulation (RFPE) fixture is introduced in this paper. The factors to hinder RFPE from industrialization are analyzed. A new technique ?universal component based initiative locating technique is put forward . It solves the problems of locating the arbitrarily shaped part in RFPE fixture and makes the accuracy of location is independent of the error of fixture. The multi - elements filler and filling technique are put forward to prevent the stock drift and shrinkage problems. A new method to generate RFPE cage by multi - plates, sub - cage, varied - volume and easily - disassembly structure is also presented for access to any surface of part in a single setup and improving the filling process and optimizing its parameters.