Patent ID: 9636730
Date: 2017-05-02
CPC Classifications: B21D

Claim:
1. An apparatus for correcting upwarp deformation of a large member of a stainless steel car roof, the apparatus comprising a crossbeam, end support columns, a middle support column, an arc-shaped positioning body, crossbeam pull rings, a thin steel taut strap, and tighteners, the end support columns, the crossbeam, and the middle support column constituting a supporting part, the arc-shaped positioning body being configured to support an arc inner surface of the large member and having the same arc shape as an inner arc of the large member of the stainless steel car roof and being arranged on the middle support column, the thin steel taut strap configured to cover an exterior contour surface of the large member of the stainless steel car roof, and being connected via the tighteners to the crossbeam pull rings respectively fixed at two ends of the crossbeam, and the apparatus further comprises support blocks respectively mounted on upper portions of the end support columns to support side beams of the large member of the stainless steel car roof located at either end of the large member.