公开(公告)号：US07530247B2

公开(公告)日：2009-05-12

申请号：US12117511

申请日：2008-05-08

申请人： Manuel Lai ,  Valter Stillio ,  Rosanna Brun ,  Marco Colosseo

发明人： Manuel Lai ,  Valter Stillio ,  Rosanna Brun ,  Marco Colosseo

IPC分类号： B21D26/08

CPC分类号： B21D26/02 ,  B21D26/025 ,  B21D37/14

摘要： A hydroforming device includes a top die and a bottom die, set between which is a metal element to be formed and which are pressed against one another during a hydroforming process. A relative movement of the two dies between the open condition and the closed condition is controlled by a hydraulic cylinder. The opening of the two dies during the hydroforming process, when the forming cavity is filled with liquid at a high pressure, is prevented by applying on the two dies a force generated by means of two wedge-shaped members, which are horizontally mobile, controlled by respective actuator means and having inclined surfaces in contact with corresponding inclined surfaces of a vertically mobile member. The mobile member and the hydraulic cylinder are set operatively in series between one and the same die of the two dies and the base of the hydroforming cell. On the opposite side, the two dies rest against a top cross member of the fixed structure of the hydroforming cell, which is rigidly connected to the base by means of two shoulders so that the vertical forces that are generated during the hydroforming process are discharged on the shoulders, which are subject to tensile stress.

摘要翻译： 液压成形装置包括顶模和底模，其间设置有要形成的金属元件，并且在液压成形过程中彼此压紧。 两个模具在打开状态和关闭状态之间的相对移动由液压缸控制。 在液压成型过程中，当成形腔内充满高压液体时，两个模具的开口通过在两个模具上施加力而防止，这两个模具通过水平移动的两个楔形构件产生的力被控制 通过相应的致动器装置并且具有与垂直移动构件的相应倾斜表面接触的倾斜表面。 移动构件和液压缸可操作地设置在两个模具的同一个模具和液压成形单元的基座之间。 在相对侧，两个模具靠在液压成形单元的固定结构的顶部横向构件上，该横向构件通过两个肩部刚性地连接到基座，使得在液压成形过程中产生的垂直力被排出 承受拉伸应力的肩膀。

公开(公告)号：US20080282757A1

公开(公告)日：2008-11-20

申请号：US12117511

申请日：2008-05-08

申请人： Manuel Lai ,  Valter Stillio ,  Rosanna Brun ,  Marco Colosseo

发明人： Manuel Lai ,  Valter Stillio ,  Rosanna Brun ,  Marco Colosseo

IPC分类号： B21D26/02 ,  B21D37/04 ,  B21D39/08

CPC分类号： B21D26/02 ,  B21D26/025 ,  B21D37/14

摘要： A hydroforming device includes a top die and a bottom die, set between which is a metal element to be formed and which are pressed against one another during a hydroforming process. A relative movement of the two dies between the open condition and the closed condition is controlled by a hydraulic cylinder. The opening of the two dies during the hydroforming process, when the forming cavity is filled with liquid at a high pressure, is prevented by applying on the two dies a force generated by means of two wedge-shaped members, which are horizontally mobile, controlled by respective actuator means and having inclined surfaces in contact with corresponding inclined surfaces of a vertically mobile member. The mobile member and the hydraulic cylinder are set operatively in series between one and the same die of the two dies and the base of the hydroforming cell. On the opposite side, the two dies rest against a top cross member of the fixed structure of the hydroforming cell, which is rigidly connected to the base by means of two shoulders so that the vertical forces that are generated during the hydroforming process are discharged on the shoulders, which are subject to tensile stress.

摘要翻译： 液压成形装置包括顶模和底模，其间设置有要形成的金属元件，并且在液压成形过程中彼此压紧。 两个模具在打开状态和关闭状态之间的相对移动由液压缸控制。 在液压成型过程中，当成形腔内充满高压液体时，两个模具的开口通过在两个模具上施加力而防止，这两个模具通过水平移动的两个楔形构件产生的力被控制 通过相应的致动器装置并且具有与垂直移动构件的相应倾斜表面接触的倾斜表面。 移动构件和液压缸可操作地设置在两个模具的同一个模具和液压成形单元的基座之间。 在相对侧，两个模具靠在液压成形单元的固定结构的顶部横向构件上，该横向构件通过两个肩部刚性地连接到基座，使得在液压成形过程中产生的垂直力被排出 承受拉伸应力的肩膀。