Floating pressing mechanism for improving resilience of outer plate of engine hood

Abstract

The invention discloses a floating pressing mechanism for improving resilience of an outer plate of an engine hood, and belongs to the technical field of stamping. The floating pressing mechanism comprises an upper die body, an upper pressing plate, a flanging female die insert, upper ejection rods, a lower pressing plate, a lower pressing plate insert, a male die, a nitrogen spring, an adjustingcushion block, a balance block and a lower die body, wherein the upper pressing plate moves up and down inside an upper die body through a guide element under the action of a power source, the flanging female die insert is fixed to the upper die body, and the upper die body is arranged on a pressing machine upper sliding block through a quick clamp, and the lower pressing plate moves up and down inside the lower die body through the guide element under the action of the nitrogen spring. According to the mechanism, the forming quality of a workpiece in the production process can be guaranteed,the problems of poor rigidity, large resilience and the like are solved, a testable scheme can be provided for subsequent adjustment through the balance block, the nitrogen spring and the adjusting cushion block, and the optimal effect is achieved; and through the mechanism, flanging of a plate in a non-free state can be achieved, the rigidity of a flanged product can be guaranteed, and the problem of product resilience is solved to the maximum extent.

Description

technical field [0001] The invention belongs to the technical field of stamping, and in particular relates to a floating pressing mechanism for improving the rebound of the outer panel of a hair cover. Background technique [0002] In the automobile outer cover, the two sides of the outer panel of the hood are overlapped with the fender, the front side is overlapped with the radiator grille, the front decorative frame, and the headlight, and the rear side is overlapped with the windshield. The outer panel of the hair hood belongs to the class A curved surface, and the product must not have any defects. The outer panel of the hair cover should have a smooth surface, clear ridges, and the accuracy of the peripheral dimensions should be within plus or minus 0.5mm. The plastic deformation of drawing must be sufficient, and the appearance of the car requires that the surface of the outer panel of the hair cover should not be scratched by light inspection, and that there should b...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems existing in the prior art such as large rebound and poor rigidity of the outer panel of the hair hood, the present invention provides a floating pressing mechanism for improving the rebound of the outer panel of the hair hood. The function of the plate and the upper die flanging die insert can realize the flanging of the plate in a non-free state, thereby improving the problem of springback of the outer plate of the hair cover

This mechanism can not only ensure the forming quality of the parts in the production process, solve product problems such as poor rigidity and large springback, but also provide testable solutions for subsequent debugging through means such as balance weights, nitrogen springs, and adjustment pads. Excellent effect

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