US 11,745,241 B2
Bending machine for metal sheets with a tools' magazine
Roberto Meneghello, Sarego (IT); and Giulio Farina, Sarego (IT)
Assigned to SALVAGNINI ITALIA S.P.A., Sarego (IT)
Appl. No. 17/275,381
Filed by SALVAGNINI ITALIA S.P.A., Sarego (IT)
PCT Filed Oct. 9, 2019, PCT No. PCT/IB2019/058590
§ 371(c)(1), (2) Date Mar. 11, 2021,
PCT Pub. No. WO2020/075079, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 102018000009371 (IT), filed on Oct. 11, 2018.
Prior Publication US 2022/0048087 A1, Feb. 17, 2022
Int. Cl. B21D 5/02 (2006.01)
CPC B21D 5/0218 (2013.01) [B21D 5/0227 (2013.01); B21D 5/0254 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A bending machine for metal sheets, the bending machine comprising:
a supporting frame provided with a base plate adapted to abut a supporting plane whereon the bending machine is placed;
a punch arrangement that includes an upper crosspiece adapted to support at least one set of upper bending tools, the upper bending tools being aligned along a bending direction parallel to the supporting plane;
a die arrangement that includes a lower crosspiece adapted to support at least one set of lower bending tools, the lower bending tools being aligned along the bending direction;
a tool magazine positioned in an internal compartment defined by said supporting frame, said punch arrangement and said die arrangement, and arranged to house bending tools;
a replacing apparatus positioned in the internal compartment and arranged to take bending tools from said tool magazine and mount said bending tools on said punch arrangement and/or said die arrangement and remove bending tools from said punch arrangement and/or said die arrangement and transfer said bending tools to said tool magazine, wherein
said replacing apparatus comprises a gripping device configured to simultaneously hook and move a whole set of said bending tools,
said tool magazine comprises a plurality of supporting guides adjacent to, and supported by, said base plate, which are arranged parallel to the bending direction and adapted to each slidably house a respective set of bending tools, and a transfer carriage adjacent to, and supported by, said base plate, and adapted to house a set of bending tools,
said transfer carriage is movable along a first driving direction, orthogonal to the bending direction and parallel to the supporting plane, between an exchange position, in which said transfer carriage is adjacent to said replacing apparatus in order to receive from, or provide to, said gripping device a set of bending tools, and a plurality of loading positions in each of which said transfer carriage is aligned to a respective one of said supporting guides in order to transfer to, or receive from, said respective supporting guide a set of bending tools, by moving said respective supporting guide along a movement direction parallel to the bending direction.