KEYWORDS: Deformation, Finite element methods, Modal analysis, Design, Material fatigue, Sensors, Reliability, Metals, Computer simulations, Chemical elements
The frame of the precision punching machine is a supporting structure for other components, playing a crucial role in overall stability, accuracy, and lifespan. This article conducts finite element analysis and modal analysis on the frame, and optimizes the structure of the frame based on the analysis results, reducing the maximum stress of the welded side plate from 135MPa to 90.266MPa and significantly reducing the stress concentration coefficient. Modal analysis has determined the first four natural frequencies of the frame, providing a theoretical basis for avoiding fixed operating frequencies in precision punching machines.
KEYWORDS: Vacuum chambers, Design, Liquids, Control systems, Systems modeling, Signal processing, Modeling, Engineering, Digital electronics, Device simulation
A test bench for testing the sealing performance of pitching paddle is designed, which can perform pressure test on the main sealing parts such as transom and paddle hub. The piston of the digital hydraulic cylinder is connected in series with the piston of the piston of the piston cylinder, and the displacement of the piston of the piston cylinder is controlled by controlling the displacement of the digital hydraulic cylinder, which in turn controls the pressure in the experimental chamber. Simulation study of its hydraulic circuit using AMESim simulation software. The experimental results show that the system can accurately load experimental cavities of different volume sizes, and hold pressure for a certain period of time after loading is completed according to the requirements. Determine whether the sealing performance meets the requirements by comparing the pressure change before and after holding pressure. The device improves detection accuracy and efficiency and guarantees the safety of the shipping process.
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