一种高精度高可靠性调焦机构设计  

A High Precision and Reliability Focusing Mechanism Design

作　　者：薛乐堂[1,2] 陈涛[1] 徐涛[1,2] 姜润强[1] 

机构地区：[1]中国科学院 长春光学精密机械与物理研究所,长春130033 [2]中国科学院研究生院,北京100049

出　　处：《长春理工大学学报（自然科学版）》2012年第2期9-11,共3页Journal of Changchun University of Science and Technology(Natural Science Edition)

摘　　要：为提高调焦机构的调焦精度和可靠性,设计了一种调焦机构,其主要由双步进电机、丝杠螺母、直线导轨、直线电位计和限位机构组成。文中具体给出了该机构的组成结构,分析并验证了机构的调焦精度,其中双步进电机驱动形式和新限位措施的采用提高了整个机构的可靠性。实验结果表明该机构的调焦精度优于0.01mm,且可靠性得到了很大提高。For the purpose of improving the precision and reliability of the focusing mechanism, a new structure is de- signed and discussed in this article.The new structure mainly consists of dual stepping motor, feed screw nut, linear guide track, linear potentiometer and position-limit mechanism.The idiographic physical design is given and the control precision is analysised in the article.The application of the dual stepping motor and the new position-limit method can improve the reliability of the whole mechanism.The experimenl results prove that the control accuracy of this new mech- anism is limited in 0.01mm and its reliability is improved distinctly.

关 键 词：调焦机构 双步进电机 调焦精度 高可靠性 

分 类 号：TH122[机械工程—机械设计及理论]