基于多结构集成模型的机械制图教学实践

Teaching practice of mechanical drawing based on structural integrated model

为了引领学生跨过形体想象的障碍以培养其空间想象力,提高机械制图课程教学的效果,因而设计并采用一种新的集成多种结构特征的实体教学模型。模型上包含常见的基本立体切割、钻孔、虚实相交和相贯等实体构成,以及典型的机械零件沉孔、肋板、螺纹、退刀槽、键槽、销孔和底板开槽等工艺结构。集成模型体积小巧,便于学生随身携带,经机械制图教学实践应用,效果良好。

To help students hurdle the bar of shape imagination ,cultivate their space imagination and improve the teaching effect of mechanical drawing course ,we designed a new physical teaching model integrated multiple structural features .The model contains the common entity structures such as basic three-dimensional cutting ,drilling ,the actual intersection ,and nozzle-vessel junction forms ,as well as the typical mechanical parts technological structures such as sink holes ,floor ,thread ,relief groove ,slotting ,pin hole ,and floor grooving .The model is small in size , easy to carry for students . By teaching practice application of mechanical drawing ,the model is proved conducive to mechanical drawing learning .