A lift-type two-way hydraulic press with an automatically adjustable positioning structure and method

Abstract

The invention relates to the technical field of hydraulic presses, discloses a lift-type two-way hydraulic press with an automatically adjustable positioning structure, and also discloses an implementation method of the lift-type two-way hydraulic press with an automatically adjustable positioning structure. It includes a hydraulic seat and a base fixedly installed at the lower end of the hydraulic seat. The upper end of the hydraulic seat is provided with a hydraulic part, the lower end of the hydraulic rod is equipped with a lower pressure plate, and the two sides of the lower pressure plate are fixedly installed with sliding parts. The upper end of the lower pressing plate is fixedly installed with a backing plate, the lower end of the backing plate is provided with a sleeve, and the two sides of the lower pressing plate close to the slider are movably installed with struts, and the other end of the strut is fixedly connected with the side wall of the hydraulic rod. The upper end opens the hydraulic part to work, so that the hydraulic rod connected to the lower end of the hydraulic part stretches, driving the lower pressing plate to work. During the pressing down process, the two sets of struts can balance the lower pressing plate, improving the stability of the lower pressing plate. Facilitates uniformity of downforce.

Description

technical field [0001] The patent of the present invention relates to the technical field of hydraulic presses, in particular, to a lift-type dual-channel hydraulic press with an automatically adjustable positioning structure and a method thereof. Background technique [0002] A hydraulic press is a machine that uses liquid as a working medium and is made according to Pascal's principle to transfer energy to realize various processes. A hydraulic press generally consists of three parts: the machine (main machine), the power system and the hydraulic control system. Hydraulic presses are classified into valve hydraulic presses, liquid hydraulic presses, and engineering hydraulic presses. [0003] The patent document CN201822056755.X proposes an automatic lifting double-way hydraulic machine, which includes a base and a sliding seat. The bottom outer wall of the sliding seat is fixed on the base by bolts, and a positioning boss is welded on one side of the inner wall of the sl...

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Problems solved by technology

[0003] The patent document CN201822056755.X proposes an automatic lifting double-way hydraulic machine, which includes a base and a sliding seat. The bottom outer wall of the sliding seat is fixed on the base by bolts, and a positioning boss is welded on one side of the inner wall of the sliding seat. The inner walls of both sides of the positioning boss are provided with chute, and the inner wall of the chute is slidably connected with a sliding limiting plate, and the four sides of the bottom outer wall of the sliding limiting plate are fixed with compression plates by bolts, and the top outer wall of the sliding seat Both sides are welded with brackets, the top inner wall of the bracket is fixed with a hydraulic cylinder by bolts, and the outer walls of both sides of the bracket are welded with a hydraulic machine chamber, the bottom outer wall of the hydraulic cylinder is provided with a connecting shaft, and the bottom outer wall of the connecting shaft A sliding shaft is sleeved, and the outer wall of the bottom of the sliding shaft is fixed on the outer wall of the sliding limiting plate by bolts, and the connection between the sliding shaft and the sliding limiting plate is provided with a pressure-applying pneumatic valve, and the pressure-applying pneumatic valve One side of the outer wall is connected to the air pressure balance tank through the air pipe, and the air pressure balance tank is connected to the top inner wall of the hydraulic cylinder. Although the dynamic balance in the pressure application process is adjusted in this patent document, only the part of the hydraulic head is adjusted. If the workpiece and the base are offset, it is difficult to ensure the stability of the hydraulic process. The existing down pressure is positioned by the cooperation of the positioning column and the positioning groove, and the positioning column will still produce a certain offset when it is in the positioning groove. , the positioning effect is not good, and because the pressure range of the hydraulic surface is small, the gravity on both sides of the workpiece is inconsistent with the central part during the pressing process, which affects the hydraulic effect of the workpiece

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