Finite element modal analysis of the FPD glass substrates handling robot

A planar multi-joint handling robot for FPD (Flat Panel Display) glass substrates with heavy load and high precision is introduced. In order to investigate the vibration characteristics of this robot, finite element modal analysis with Solidworks simulation is presented. First of all, the mechanical structure of the new generation FPD glass substrates handling robot is introduced. Then, the finite element model is established and the modal analysis procedure is introduced in detail. In a given typical configuration, the first 10th natural frequencies and corresponding mode shapes of the robot are obtained. Based on the calculation results, relative weak parts of vibration for the robot are pointed and the improving suggestions are put forward. Furthermore, the natural frequencies of the key components are analyzed and the modal matching analysis is given. The analysis results indicate that the modal distribution of the mechanical structure of this new generation FPD glass substrates handling robot is reasonable.