.摘 要为了提高生产效率,满足一些特定的工作要求,本题设计的关节型机器人的手腕用于焊接、喷漆等方面。通过合理的设计计算,拟定了手腕的传动路径,选用直流电动机,合理布置了电机、轴和齿轮,设计了齿轮和轴的结构,实现了摆腕、转腕和提腕的三个自由度的要求。设计中大多采用了标准件和常用件,降低了设计和制造成本。关键词:自由度,关节型机器人,手腕ABSRACTIn order to improve production efficiency and meet some of the specific requirements, design of ontology of robot wrist joints used for welding, paint, etc. Through the reasonable design calculation, the transmission path, choose the wrist, reasonable decorate a dc motor, gear axle and gear axle, design and reali