Research On The Key Technology Of Micro-Gear Assemble

In recent years, as the requirement of the structure and function development of the equipments which belong to the industrial and civilian fields. These special devices increasingly demands on the smaller and smaller size, and on the more and more complex structure. With processing methods innovation, micro-parts assembly technology, in need of higher demand in all aspects of the micro-assembly system. So, the research on key technologies of the micro assembly is very important. Based on the analysis of the Micro-assembly technology, force sensor, force control, selecting the assembly of body clocks with no back torque, we study the key technology of the micro gear assembly. There are a large number of applications in the industrial and civilian fields.The body clocks with no back torque is made up of four components, and two gear transmission. Their configuration is complex and size is subminiature.At the level of institutions assembly mission analysis to determine the component agencies of the assembly sequence. According to the different components of the assembly process, select a transitional gear as the micro gear assembly key technology research. Due to the small size of the transition gear and complex structures, it is necessary to detect the assembly force in the process of micro assembly. In this system, an accurately calibrated micro-force sensor with six dimensions is used for detecting of force. Based on the analysis of the assembly, the system has realized the PID control of the gripper. So, the system can get the gear's position and regulate it in good time according force information, avoiding the blocking of gears in assembling. The method fusing vision and force sensor was adopted to assembly the gears, which improves the velocity and the possibility of success. The assembly experiment was made, through which the gears was assembled correctly. That validated controlling algorithm and assembling methods.This research maybe provides some useful theories and experiences to the research of complicated micro gear assembly, is help to development and application of technology in micro assemble.