——“Samhoor nicety machine”it began in 2000 year,focus on Precision punching, high-speed presses production stamping equipment R & D .
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Modal analysis demonstrates high-speed punch combination mechanism
Watch the demo image analysis, high-speed presses welding various parts of the model as a whole, and considering only preload the lever, ignore other assembly stress, preload size selection 2 times the nominal force that is applied to each lever 40t preload force. Were analyzed using stepwise loading, the first step for the machine under preload static stress analysis of the role, the second modal analysis speed presses in action under preload. Contact points during the analysis constraints imposed on the machine and damping pad, constraints about freedom of the contact surfaces. Figure 4.23 static analysis of preload stress cloud. Lanczos method of calculation, the first eight natural frequencies and mode shapes combined mechanism. Use
Considering all of the major components of machine tools, the model shown in Figure 4.21, the analysis unit with Solid45, elastic modulus take 206e9Pa, Poisson's ratio 0.3, select the material density 7800kg / m3, freedom of choice mesh partition mode, mesh shown in Figure 4.22, it was divided into a 90,854 node, 368,843 units.