Aiming at the problems of low positioning accuracy and low assembly efficiency in capacitance assembly system with multiple quantities and different position arrangements,this paper proposed a high precision capacitance assembly system based on machine vision guidance.Firstly,the twelve-point calibra-tion method is used to determine the conversion relationship between coordinate systems.Secondly,an im-proved location algorithm based on blob analysis is proposed to determine the center location of the resist-ance vessel.Finally,offset compensation is introduced to guide the robot to complete the assembly of each corresponding position.The experimental results show that the average assembly error of the assembly sys-tem proposed in this paper is 0.05 mm,and the assembly accuracy reaches 99.8%.The actual assembly er-ror requirement is less than 0.1 mm,which meets the actual production demand and effectively improves the production and assembly efficiency.
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