Hydraulic high-precision material pressing device

Abstract

The invention discloses a hydraulic high-precision material pressing device. Opposite surfaces of two guide columns (4) are respectively provided with a linear guide rail (14), a pressing head (9) is of a frustum structure with a smaller top and a bigger bottom, and the circumferential side surface and the bottom surface of the pressing head (9) are coated with an anti-abrasion steel protection layer; the left end and the right end of the top of an upper slide plate (6) and the left end and the right end of the bottom of a lower slide plate (7) are respectively and fixedly provided with a positioning seat (15), the side surface, facing the guide column (4) on the corresponding side, of each positioning seat (15) is provided with a slide block (16), and each slide block (16) is seamlessly matched with the linear guide rail (14) in a sliding manner. The hydraulic high-precision material pressing device is ingenious in design, easy to implement and low in cost, and not only can the deviation of a loading rod be prevented, but also the reliability in driving can be guaranteed; the contact area between the pressing head and a forming tube is small, so that the abrasion damage is unlikely to happen, and the service life is longer; meanwhile, the guiding precision can be effectively improved, and the bearing capacity can be improved.

Description

technical field [0001] The invention relates to a pressing machine, in particular to a hydraulic high-precision material pressing device. Background technique [0002] The rotary press is a special equipment used to press the required construction or engineering materials into standard test pieces. Existing rotary presses generally adopt a guiding mechanism in which sliding bearings and guiding columns are matched, through the cooperation of two guiding columns on the frame and sliding bushings, so as to achieve guidance and withstand the lateral force and bending moment generated during the pressing process. If the gap between the sliding bushing and the guide column is too large, it will affect the detection and monitoring of the guiding accuracy and axial pressure, and the expected effect will not be achieved; if the guiding accuracy is improved by reducing the fit clearance, the machining accuracy and assembly The accuracy has put forward very strict requirements, which...

AI Technical Summary

Problems solved by technology

If the gap between the sliding bushing and the guide column is too large, it will affect the detection and monitoring of the guiding accuracy and axial pressure, and the expected effect will not be achieved; if the guiding accuracy is improved by reducing the fit clearance, the machining accuracy and assembly The accuracy has put forward very strict requirements, which will greatly increase the production cost

[0003] The loading device on the rotary press is generally composed of powertrain, upper slide plate, lower slide plate, positioning block, loading rod and pressure head, etc. The connection structure between the components is complicated, not only inconvenient to install and disassemble, but also low in assembly efficiency. Moreover, the loading rod is prone to offset, and the reliability of the transmission is poor

The indenter is usually a short cylindrical structure, which has a large contact area with the forming cylinder during the pressing process, which not only increases energy consumption, but also is prone to wear and damage

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