小型电机机座是机械制造业中产量很大的一类铸件、它外形有密集的辐射分布的散热片,内腔简单呈圆柱状。其传统铸造工艺无论手工造型或机器造型都是在型中放置一个大圆柱形泥芯来形成机座铸件内腔,浇注系统采用芯内底注或顶注,这一工艺至今仍在我国小型电机铸造上广泛应用。我厂每年生产数万台机座铸件,在造型线上设置的手工制芯工位,其效率跟不上造型机的生产率,而且,由于下芯偏移而产生“偏 Small motor base is a large volume of machinery manufacturing manufacturing castings, its shape has a dense radiation distribution of heat sink, the inner cavity is simple cylindrical. The traditional casting process regardless of manual molding or machine modeling are placed in the type of a large cylindrical mud core to form the cavity casting base, pouring system using the core in the end note or top note, this process is still in our country small motor Casting widely used. I plant annual production of tens of thousands of machine castings, in the modeling line set handmade core station, the efficiency of keep up the productivity of the molding machine, and, due to the core shift and produce "partial