Forming die for spherical surface stainless steel plate

Abstract

A forming die for a spherical surface stainless steel plate comprises a bottom plate, a lower backing plate, a concave die, a convex die, a convex-concave die, a top plate and an upper backing plate. The concave die is installed on the bottom plate, the lower backing plate is arranged between the concave die and the bottom plate, the convex die is installed in an inner cavity of the concave die in a sliding fit mode, and the convex face of the convex die faces upwards. The convex-concave die is installed on the top plate, the upper backing plate is arranged between the convex-concave die and the top plate, and the concave face, matched with the convex face of the convex die, of the concave die is opposite to the convex face of the convex die. Hole sites are arranged in the top plate and the bottom plate and used for fixedly connecting a top plate and a bottom plate of a hydraulic machine. The forming die for the spherical surface stainless steel plate is scientific in design, simple in structure, convenient to operate, low in part suppressing resilience amount, stable, reliable, high in strength, fatigue and abrasion resistant, high in working efficiency and low in cost.

Description

technical field [0001] The invention relates to a forming die of a spherical steel plate for a support, in particular to a forming die for a spherical stainless steel plate welded to a middle spherical crown steel lining plate of a spherical support in civil engineering such as bridges and buildings. Background technique [0002] With the development of anti-seismic and seismic isolation technology of bridges and buildings, spherical bearings are more and more widely used, including ordinary spherical bearings, E-shaped steel shock-absorbing and isolation spherical steel bearings, and C-shaped steel shock-absorbing and isolating spherical steel bearings. , Hyperboloid shock-absorbing and isolating spherical steel bearings, friction pendulum shock-absorbing and isolating spherical steel bearings, etc. The common point of these bearings is that at least one side of the middle spherical crown liner is spherical. The standard GB / T 17955-2009 stipulates that the convex spherical ...

AI Technical Summary

Problems solved by technology

[0003] 1. In addition to the basic forming components such as the die, punch, and punch-and-concave die, the mold must also use a blank holder with drawbeads and elastic elements that provide sufficient pressure such as springs and rubber. The mold structure is complex and the mold cost is high. ;

[0004] 2. The springback of the pressed parts is large and unstable, resulting in large voids when the spherical stainless steel plate and the spherical crown liner are welded, resulting in unqualified products

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