自动机常用螺旋面设计与加工方法

为解决枪械自动机结构中常用螺旋面的设计与加工中存在的问题，对其运用方案、理论特性及加工计算 方法进行解析。解析3 类常见螺旋面运用形式，对螺旋面的特性进行研究，推导建立螺旋面加工及间隙计算的理论 公式，其中一些措施已在工程实践中取得良好成效。结果表明：该设计实用、可行，可为枪械自动机螺旋面的设计、 加工提供参考。

Design and Processing Method ofHelicoids Surfaces Commonly Used in Automat

In order to solve the problems existing in the design and processing of helical surfaces commonly used in the structure of gun automat, its application scheme, theoretical characteristics and processing calculation method are analyzed. This paper analyses 3 kinds of common helical surface application forms, studies the characteristics of helical surface, deduces and establishes theoretical formulas for helical surface processing and clearance calculation, some of which have achieved good results in engineering practice. The results show that the design is practically and feasibly, which can provide reference for the design and processing of helical surface of gun automat.