Wheel Hub Forming Device and Its Supercharging Mechanism

Abstract

The invention relates to a hub forming device and a hub forming pressurizing mechanism. The hub forming pressurizing mechanism comprises a die assembly pressing mechanism and a restraint frame, the die assembly pressing mechanism comprises a fixator and a connector, and a connecting rod mechanism is arranged between the fixator and the connector. The connecting rod mechanism comprises a first toggle rod hinged to the fixator and a connecting rod hinged to the connector, the connecting rod is hinged to the first toggle rod mutually, and a swing limiting mechanism is further included. A hinged matching structure is arranged at the position at which the first toggle rod hinged to the connecting rod or close to the hinged position, a second toggle rod is hinged to the restraint frame, an elastic maintaining piece is arranged between the second toggle rod and the restraint frame, a clamping structure is arranged at the free end of the second toggle rod, the clamping structure is connected with the hinged matching structure when descending die disassembly is carried out on a hydraulic machine and a hinged relationship is formed, so that the connecting mechanism and the second toggle rodjointly form an elbow connecting rod mechanism, the elbow connecting rod mechanism is relatively separated from the hinged matching structure when the hydraulic machine returns, and the problem that in existing pressurizing technology, a die opening stroke of a die is small is solved.

Description

technical field [0001] The invention relates to a forming device, which is especially suitable for the forming device of an automobile wheel hub and its supercharging mechanism. Background technique [0002] With the development of the national economy, the precision plastic forming technology of light alloy automobile wheel has become the development direction of automobile wheel forming technology. The Chinese invention patent with the authorized announcement number of CN102179665B and the authorized announcement date of 2014.07.16 discloses a combined plastic forming method of an automobile wheel hub and its supporting forming mold. The extrusion upper punch and the bulging upper punch matched with the lower die. When forming, the blank is first matched with the upper extrusion punch and the lower die in the mold, and the spoke part of the wheel hub and the lower part of the rim are preformed by extrusion technology. part, and the upper part of the rim is formed into a h...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a wheel hub forming pressurization mechanism to solve the problem in the prior art that when the toggle linkage mechanism is used on the wheel hub forming mold to pressurize, the mold opening stroke is small and the operation space cannot be provided sufficiently large; the present invention The object of the invention is also to provide a hub forming device that solves the above problems

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