High-speed LED Chip Sorting Arm Vibration Suppression Research

Vibration is a physical phenomenon everywhere in our nature and daily lifes, wealways use of vibration while the harm caused by vibration is also very common.Vibration is widespread in industrial, it is very important significance to carry outvibration suppression research to equipment and make sure the structure achieve thedesired function. In the LED industry, LED sorting equipment gradually developstowards high-speed, high precision, high reliability direction. Arm, the core component ofthe LED sorting equipment, is high-speed reciprocating motion in the course of Chipsorting, while dynamic characteristics of the high-speed reciprocating motion directlyimpact on the chip sorting, vibration has become the outstanding issues of the new chipsorting equipment, so it is very important significance to carry out vibration suppressionresearch to the arm of LED chip sorting equipment.This paper mainly adopts active inhibition, topology optimization, and CAEsimulation technology to complete the vibration suppression research of the arm. Themain research works are focused on the following aspects:(1)The characteristics and applications of active vibration suppression and passivesuppression was compared，adopt passive suppression to complete anti-vibration design.(2)Adopt particles damping to increase the damping of the arm and used level settopology optimization method to increase stiffness and natural frequency of the arms.(3)Complement the LED chip sorting machine three-dimensional model，and carryout CAE analysis technology for static analysis, modal analysis, harmonic analysis andrigid-flexible co-simulation of the arms.(4)Build experiential platform to carry out vibration test of the arms， verify the armmeets the design requirements.