Cause analysis and treatment on abnormal vibration for the press machine during working

For appearing a tremor and buckling phenomenon on the top press machine in completing press the copper sheets, to analyze the reason, dynamics model and finite element analysis model of the press frame were established, the harmonic response analysis was done using ANSYS software, and the harmonic response frequency and its harmonic response amplitude in the X, Y, Z three directions were obtained respective, the conclusion that resonance at about 152 Hz at Z direction is the direct cause of arising tremor and buckling deformation on the press machine was obtained, after improved the structure of the press frame the phenomenon of the tremor and buckling is eliminated.