Static And Dynamic Analysis And Optimization Of SLT160 Servo Turre

With the increasing requirements of manufacturing for CNC and CNC industry is moving in the direction of high-speed, high-precision, intelligent, high reliability development, the performance requirement for Servo Turret,the Key components of CNC, is becoming higher and higher. The static stiffness, dynamic stiffness and reliability of the turret have a great influence on the performance of CNC.The study conduct static and dynamic analysis and optimization for SLT160 servo turret with the finite element analysis softwares such as HyperMesh and ABAQUS. The main steps are as follows:1) free modal experiments of Servo Turret was conducted, obtaining three natural frequencies and mode shapes of Servo Turret. Compare with the results of modal experiments, the finite element simulation was proved right.2) In accordance with national standards for loading, static analysis and harmonic analysis were conducted for Servo turret, getting static stiffness and dynamic stiffness of turret machine. According to the requirements of national standards for static stiffness, tangential static stiffness is insufficient.3) Based on ABAQUS rigid body constraints, it proves that the impact of tooth disc on the static stiffness of whole model is larger than other components. Therefore, modify the structure of tooth disc to optimize the tangential static stiffness of turret machine.4) Modify the structure of tooth disc. Compare the results of static analysis and dynamic analysis of different models, which proved that the structural optimization of tooth disc increase the static stiffness and dynamic stiffness of the turret machine.Tooth disc is the key component of the Turret machine. According to cutting force by cutting experiment, transient dynamic analysis of the Turret machine is conducted and obtain contact force curve of tooth disc by tangential load, which lay the foundation of fatigue analysis for tooth disc.