High-precision flat plate type pressing machine

Abstract

The invention provides a high-precision flat plate type pressing machine which comprises a removable pressing machine frame, a pressing plate orientation and positioning device in lifting process and a pressure system. The bearing capability of a bolt is greatly increased by changing the stressing type of a joint part between a vertical column and a cross beam, i.e. the bolt is changed from shearing stress to tensile stress, and thus, the safety of the pressing machine is enhanced. The adoption of the pressing plate orientation and positioning device in lifting process completely cancels a weld assembly, namely a leg supporter and a foot rest, so that the pressing plate and the frame can not be heated to deform because of the welding process, and the processing precision of the pressing machine is ensured. The pressure system of the pressing machine increases the stressing supporting range of a product processed by the pressing machine and reduces the elastic deformation of the processed product, and thus, the thickness difference of the product processed by the pressing machine is ensured to be controlled within the minimum limit.

Description

technical field [0001] The invention relates to a flat press, in particular to a flat press with high precision performance. Background technique [0002] The structure of traditional single-layer or multi-layer plate presses is generally divided into upper-pressure plate presses and lower-pressure plate presses. When the press is in the open state, the opening size of two adjacent platens is usually called the layer spacing. The number of openings in a press is usually called the number of layers of the press. A press with more than 2 layers (including 2 layers) is called a multi-layer press. [0003] Such as figure 1 As shown, the upper-pressure plate press is composed of a press frame 1, a workbench 2, a plurality of pressing plates 3, a plurality of hydraulic cylinders 4, a hydraulic system 5 and an electrical control system 6. Multiple groups of hydraulic cylinders 4 are installed on the top of the lower beam 122, the hydraulic cylinder plunger 41 faces upward, the ...

AI Technical Summary

Problems solved by technology

However, the footrest 32 and the footrest 31 need to be welded to the press frame 1 and the press plate 3 respectively by welding, and the heat of welding will deform the press frame 1 and the press plate 3, thereby directly affecting the processing of the press precision

[0010] please combine Figure 14 and Figure 15 , the center line 42 of the hydraulic cylinder of the existing upper-pressure plate press is respectively aligned with the center line 123 of the upper beam. The force of the same position on the product 9 but in the opposite direction makes this position undergo a large elastic deformation, while other positions of the press machined product 9 far away from the hydraulic cylinder plunger 41 undergo a small elastic deformation, so that Press processed product 9 has a large thickness deviation

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