菱形销在砂箱模板中定位设计工艺分析  

Analysing of the location of the rhombus pin in a pattern

作　　者：侯银海[1] 胡勇[1] 袁世先[1] 徐瑞丽[1] 郭建华 

机构地区：[1]河南职业技术学院 [2]郑州市中原华方机械厂

出　　处：《中国铸造装备与技术》2003年第3期50-53,共4页China Foundry Machinery & Technology

摘　　要：通过分析砂箱模板中的定位结构原理,阐述了我国大多数中小型企业普遍采用一面两孔定位中最常用的,以两个圆柱销及平面支承实现定位,以一圆柱销一削边销(长圆形销)和平面支承定位在砂箱模板中定位的优缺点,重点论述了采用以一圆柱销、一菱形销(砂箱全部采用圆套)和平面支承实现砂箱与模板的定位,易于作到工艺过程中的基准统一,保证砂箱(上、下)及模板的位置精度和重复精度,克服了砂箱在造型过程中不被卡死和砂箱椭圆套在加工制作时工艺复杂、周期长、成本高等缺点。Analysing the locations and structures of the pattern plates for casting boxes,the paper tells the achentages and shortcomings of the common casting methods in big and small plants in China,which apply one surface with two round pins or with one round pin and one side-eat pin to get needed location.And the way using one sarface with one round pin and one rhombus pin to locate casting bos and pattern plate,is argued in detail. It is easy to get for the applicaton of the way to obtain the identity of daturas and the position precision and repeating precision between cope box and bottom bosx.Thelock of the casting boxes in working,the complicated process,the long time consumed and the big cost during the making If the ellipse bush for casting boxhace been soluted in the paper.

关 键 词：菱形销 圆销 长圆形销 长圆形套 定位销 导向销 定向套 定位套 砂箱模板 铸造 

分 类 号：TG23[金属学及工艺—铸造]