工艺尺寸链的求解方法

THE METHOD TO SOLVE SIZE CHAIN OF TECHNOLOGY

本文从工艺尺寸链的定义出发，详细地阐明了利用极值法的基本公式去求解工艺尺寸链的方法、步骤。特别指明了求解尺寸链的首要问题在于正确地确定封闭环。而确定封闭环的关键，除了联系零件的具体加工方案外，必须紧紧抓住封闭环尺寸是＂间接获得＂这一要领。

According to the definition of size chain of technology the essay brilliantly expounds the method and steps to solve size chain using the basic formula of extreme value.The essay especially shows clearly that the key to solve size chain lies in finding Seal Ring,But the key to find seal Ring lies in thin Ring on the Scheme for machining of fixing position of the spare parts and having a profound grasp of Size Chain being made indirectly besides.From this point,three examples are given for its answer.