基于多体理论的蜗轮蜗杆精密转台精度设计研究  

Transmission accuracy analysis of worm gear and worm precision turntable based on multi-body theory

作　　者：杨铭东 吴慧敏 YANG Mingdong;WU Huimin(Dalian Branch,Genertec Machine Tool Research Institute Co.,Ltd.,Dalian 116620,CHN;School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,CHN)

机构地区：[1]通用技术集团机床工程研究院有限公司大连分公司,辽宁大连116620 [2]大连理工大学机械工程学院,辽宁大连116024

出　　处：《制造技术与机床》2024年第7期91-96,共6页Manufacturing Technology & Machine Tool

摘　　要：为了提高蜗轮蜗杆式精密型回转工作台的工作精度需求,文章基于多体系统动力学理论,结合该转台的结构及运动机理,建立了蜗轮蜗杆精密转台误差传递的数学模型,分析了各项误差对精度的影响,提出了蜗轮蜗杆精密转台误差灵敏度的分析方法,通过函数微分法,识别了蜗轮蜗杆精密转台的主要误差源,为后续的误差设计和精度分配提供了坚实的理论支撑,促进了精密转台的产业化应用。To improve the working precision of worm gear and worm precision rotary table,the mathematical model of error transmission of worm gear and worm precision turntable is established,which is based on the theory of multi-body system dynamics and combined with the structure and motion mechanism of the turntable.The influence of various errors on the accuracy is analyzed,and the error sensitivity analysis method of worm gear and worm precision turntable is put forward.Through the function differential method,the main error sources of the worm gear and worm precision turntable are identified.It provides a solid theoretical support for the subsequent error design and precision distribution,and promotes the industrial application of the precision turntable.

关 键 词：蜗轮蜗杆 精密转台 多体系统 误差建模 精度分析 

分 类 号：TH132[机械工程—机械制造及自动化] TG659[金属学及工艺—金属切削加工及机床]