Liquid Die Forging Device and Its Supercharging Mechanism

Abstract

The invention relates to a liquid-state die forging device and a liquid-state die forging pressurizing mechanism. The liquid-state die forging pressurizing mechanism comprises a die assembly pressureapplying mechanism and a restraining frame. The die assembly pressure applying mechanism comprises a fixing device and a connector, and connecting rod mechanisms are arranged between the fixing deviceand the connector. Each connecting rod mechanism comprises a first elbow rod hinged to the fixing device and a connecting rod hinged to the connector, wherein the connecting rod and the first elbow rod are hinged. A swinging limiting structure is further included. The positions, hinged to the connecting rods, of the first elbow rods or the positions, close to the hinged positions, of the first elbow rods are provided with hinge fit structures. Second elbow rods are hinged to the restraining frame, elastic retaining pieces are arranged between the second elbow rods and the rack, and the free ends of the second elbow rods are provided with clamping and connecting structures. During hydraulic machine descending for die assembly, the clamping and connecting structures are connected with the hinge fit structures, the hinge relation is formed, and bent elbow connecting rod mechanisms are formed; and during hydraulic machine return, the clamping and connecting structures are separated from the hinge fit structures. The liquid-state die forging pressurizing mechanism solves the problem that in the existing pressurizing technology, the die opening stroke is small.

Description

technical field [0001] The invention relates to a forming device, and is especially suitable for a liquid die forging device and a pressurizing mechanism thereof. Background technique [0002] The liquid die forging process requires that the molten metal be poured into the cavity of the concave mold, and then the mold is quickly closed and a high mechanical pressure is applied to the liquid or semi-solid metal in the cavity to make it crystallize and solidify under pressure and produce a certain plastic deformation. , thereby eliminating casting defects and obtaining high-quality forgings. It has the characteristics of labor saving, energy saving and high material utilization rate, and the mechanical properties of its workpiece can be close to or reach the level of forgings of the same alloy. [0003] The liquid die forging process requires a pressure of 30-120 MPa when the melt solidifies. This pressure needs to be provided by a hydraulic press (usually a hydraulic press)...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a liquid die forging pressurization mechanism to solve the problem in the prior art that when the toggle linkage mechanism is used for pressurization on the liquid forging die, the mold opening stroke of the die is small and the operation space cannot be provided sufficiently large. Problem; The object of the present invention is also to provide a liquid die forging device that solves the above problems

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