中文摘要：

针对中小汽车焊装厂焊钳动作方法存在的问题，提出将动作经济性原则运用于焊钳动作优化中。基于对焊钳运动原理和焊钳动作特点的分析，提出了焊钳动作经济五原则：分工原则、就近原则、双手均衡原则、助力原则和适配原则。通过剖析某汽车焊装厂典型工位实际案例，对上述原则进行了验证。实践证明焊钳动作经济五原则能够有效提高企业的生产效率。

英文摘要：

In allusion to existing problems of action method of electrode holder in small-and mediumsized automobile welding plants, this paper proposes to apply economic principle of action in action optimization of electrode holder puts forward five economic principles of electrode holder action based on the analysis on action principles and characteristics of electrode holder, including division of work, proximity, balance, assistance and adaptation principles~ and verifies the principles above by analyzing actual case in typical station of an automobile welding plant. The practice proves that five economic principles of elec- trode holder action can effectively improve the production efficiency of enterprises.