【摘要】 微装配系统由微机器人、微移动平台、普通摄像头和显微摄像头组成。微机器人本体尺寸为9mm×9mm×6mm,具有全方位移动特性。机器人使用了4个直径3mm电磁型微电机,其中1个为转向驱动器,其余为前进动力源。基于LIGA技术制造的微齿轮减速系统将4个电机联系在一起,提高了转向分辨率和转向驱动力矩。由SU-8胶制成的手掌固定于压电机械手臂的前端并安装在机器人的顶部,可夹放工件。通过采用细分方法,微机器人直线移动定位达到每步0.07mm,转向精度每步0.8°。微移动平台的定位精度为每步0.005mm,其位移范围为0～0.3mm。微机器人与微动平台相互结合实现了轴孔装配,轴承孔径为0.6mm,轴径0.35mm。更多还原

【Abstract】 The paper introduced a micro-assembling system which was based on a mobile microrobot. The size of the microrobot is less than a cubic centimeter. It was constituted by 4 micromotors. Three electromagnetic motors were used as driving wheel directly. Another one was used as steering driver to control direction. A micro gear system which was made by LIGA linked the four micromotors. It enhances the directional changing precision and driving forces. The rotors of the motors were used as special castors directly. The experimental results from a prototype of a microrobot are presented, which demonstrate the feasibility of building an omni-directional microrobot with micromotor and special castors. The mobile microrobot can move at 0.07mm/step and steer 0.8°/step. This microrobot realized the task of axis/hole assembly.更多还原