Structure And Key Parts Of The Robot For Stamping Automation Line Research

In recent years,the domestic automobile industry has developed very rapidly,and the introduction of new auto products has become faster and faster in order to meet the diverse needs of the public.This has also increased the requirements for automation and flexibility of automotive stamping lines.The primary process of automobile production is stamping.Stamping is mainly to complete automobile body-in-white coverings and supports.Therefore,the stamping production line is the basis of automobile manufacturing.The stamping and unloading machine meets the requirements for the flexibility level of the stamping production line.Compared with the previous manual production,it can not only reduce the production cost,but also optimize the utilization of production capacity and shorten the development cycle.It is suitable for the construction of new automobile lines and the reconstruction of old lines.,Is currently the best choice for automotive companies.This paper mainly analyzes the structure of the punching and unloading robot based on the finite element method,and performs the topological optimization design of the key component boom.First,the overall structure and parameters are determined according to the punching robot used,and forward and inverse solutions are established on the basis of establishing the robot's kinematics equation,which paves the way for robot kinematics analysis.According to the constraints of the robot structure,Matlab was used to solve the robot workspace.Then through the structural statics and dynamics analysis of the robot,the driving force(moment)of each joint of the robot can be solved.3D modeling of robots with software Solid Works,the force analysis of the robot's boom in a certain extreme posture is established,and then a finite element model of the boom is established,and the finite element analysis of the boom under different loads and constraints is carried out.The static characteristics of the boom,the two limit cases of the bolt pretension force,andthe degree of influence of the inertia force on the static displacement and deformation of the structure provide a basis for the subsequent optimization design of the boom.At the same time,the sixth-order modal analysis and pre-stress analysis of the robot's boom are performed to obtain the frequency values and modal shapes corresponding to each order.The analysis provides a reference for the boom to avoid working in the resonance frequency region and also for subsequent robots.Evaluation of structural stiffness provides a reference.Finally,based on the analysis of the static and dynamic characteristics of the robotic boom,the structural topology optimization design of the key parts of the robotic arm was carried out,and the appearance of the robotic arm structure of the punching and unloading robot was modified and reduced in weight.