对螺纹概念和螺纹紧固件连接画法的探讨

Research on the Conceptions of Screw and Conventional Representation of Screw Threaded Parts

本文结合教学和工程应用实际,对制图教材和现行国家标准中关于螺纹的牙型、中径概念,螺钉、螺柱紧固件装配画法等问题进行了分析,提出了个人观点。旨在使国家标准和工程图学学科的概念更清楚,以利于发挥标准在工程实践中的指导作用。

Combining with the teaching experiences and the engineering drawing,the paper studies the problems such as the screw-shape,middle-diameter concept, the method of drawings of screw and bolt of the Mechanical Drawing Standard and Mechanical Drawing book systematicaly.It hopes the concept of engineering drawing science be maken made clearer, which will benefit to exert the instructive action of the standard in the engineering practice.