Research On Vibration Detection And Vibration Suppression Of OCP-60E Mechanical Press

Mechanical presses are widely used in blanking,bending and other cold stamping processes,and are indispensable key equipment for the defense,aerospace,automotive and electronics industries.However,when the mechanical press is working,there are problems such as dynamic balance of the rotating parts,crank inertia force and bed resonance,which inevitably produce large amplitude vibrations,which affects the processing accuracy,and at the same time it has a bearing on the production environment and personal safety.To adversely affect.Therefore,it is necessary to carry out vibration research on the press and carry out vibration and vibration suppression work.This paper takes the OCP-60 E mechanical press as the research object,through theoretical analysis,simulation and experimental testing,to study the vibration detection and suppression of the mechanical press.First complete the kinematics and dynamics analysis of the slider,connecting rod and crankshaft of the press,calculate and draw the displacement,velocity and acceleration curves of the center of mass of the slider and connecting rod.The inertial force of the crank slider mechanism is derived,and the inertial force of the crankshaft acting on the fuselage is calculated.Second,establish a three-dimensional solid model of the press and simplify the model.Using ADAMS to add constraints and drive to the crank slider mechanism of the press for kinematics and dynamics analysis and calculation,the results obtained are compared with the theoretical analysis to verify the feasibility of the simulation and the correctness of the theoretical model.Thirdly,carry out computational modal analysis and experimental modal analysis on the press,in which the computational modal analysis is simulated using finite element software,and the computational modal analysis is carried out on the crankshaft,empty bed and machine of the mechanical press,respectively.Order frequency and mode diagram.In the experimental modal analysis,two methods of moving hammer fixed sensor and moving sensor fixed hammer strike point were used to conduct the experimental modal test on the empty bed of the press and the complete machine,according to the results of theoretical analysis The correctness of the experimental modalities is verified.According to the test results,determine whether there is resonance and propose a method to avoid resonance.Finally,the vibration isolation system of the mechanical press is designed,the dynamic model of the vibration isolation model is established and simulated,and the influence of different parameters on the vibration of the mechanical press and the installation platform is analyzed.Using the idea of optimization design in mathematical analysis,the optimal solution of the stiffness and damping of the vibration isolator is obtained,and the vibration situation before and after optimization is significantly improved.