Research On Processing Technology Simulation And Optimization Of Automobile Knuckle

With the development of the automobile industry,the demand for automotive parts is very strong and the quality requirements are increasingly strict.For high-precision,complex-shaped parts car steering knuckles,the traditional processing technology can no longer meet the technical requirements for the development of the car.The steering knuckle is an important part of the car.Its main function is to carry and turn,that is to support the weight of the car body,transmit the steering torque and withstand the braking torque of the front wheel brake.The knuckle usually breaks during use and causes more serious accidents.This article takes the steering knuckle processing technology as the research objective,analyzes the machining process of a car steering knuckle,process simulation analysis,experimental verification and process optimization,in order to explore the process method that meets the processing requirements of the factory.The structural composition and characteristics of car knuckles and their processing technical requirements were analyzed.From the perspective of knuckle forging and taper hole machining,the machining process of car knuckles was deeply discussed.Based on ADAMS software,the simulation model of car knuckle swage forgings was established.The simulation analysis was carried out for different machining process plans,and a car steering knuckle machining simulation model was established,and the movement simulation analysis was performed on the machining process.Combining the automotive steering knuckle forging and taper hole machining simulation and experimental verification results,the factors influencing the machining accuracy of the car steering knuckle were analyzed in depth.Aiming at the simulation of car steering knuckle forging and cone drilling process and the defects in experimental results,the kinematics preforming process was optimized through rigid-viscoplastic finite element method,and the optimized machining plan was carried out.Numerical simulation studies.The results show that the filling ability of the shaft decreases with the increase of the rough height of the pier,and the trend of folding at the big end increases with the increase of the height of the pier.When the height of the pier is 220 mm,the extrusion It has good moldability and small folding tendency,and it is feasible in actual production.In addition,the suitable blank diameter φ163.8mm is obtained through analysis,and the suitable fillet radius of the rod is 30 mm.The stem and fork are filled.Relatively balanced sex,the metal filling effect is the best,through the production experiment to verify the correctness and reliability of the simulation.