As shown in the structural comparison of Figure 1 and Figure 2, when there is no guide structure, once the pressing slider is stressed, most working conditions will encounter eccentric loading. When eccentric loading occurs, it is easy to cause the product accuracy to be substandard, the yield rate to be low, and the cylinder to be easily damaged. Damage, so the slider needs to be guided.Through years of development of hydraulic presses, the hydraulic press has designed a four-column guide structure and a frame guide structure.
With four-column or frame structural guides, eccentric loads are significantly improved. So what is the difference between four column hydraulic press and frame hydraulic press? Here is an analysis of why frame-based guidance is better.
The guide structure of the four column hydraulic press uses round guide sleeves to guide the four columns. When unbalanced load occurs, the guide sleeve relies on the accuracy of the guide sleeve to closely match the guide. When there is a certain gap, the guide sleeve is mainly stressed up and down. angle two points.
The guide structure of the frame hydraulic press adopts a surface-fitting guide on the side column. When an unbalanced load occurs, it relies on the guide block to fit and cooperate with the guide. The frame-type hydraulic press is divided into a 45-degree oblique four-sided guide block and a right-angle eight-sided guide. structure, relying on surface guide matching accuracy to have stronger anti-eccentric load ability.
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