公开(公告)号：US5313816A

公开(公告)日：1994-05-24

申请号：US998592

申请日：1992-12-30

申请人： Peter Schubert ,  Hans-Albert Schubert

发明人： Peter Schubert ,  Hans-Albert Schubert

IPC分类号： B21J7/14 ,  B30B15/16 ,  B21J7/02

CPC分类号： B21J7/14

摘要： A forging machine has a machine frame (1), radial forging rams (2) each adapted to carry a die (5), distributed angularly in a common working plane around the system axis (5); radial pressure-fluid piston (12) and cylinder (11) units on the machine frame, each with its cylinder forming or connected to a respective ram and having a stroke corresponding to the required ram stroke; and crossheads (15) mounted adjustably on the machine frame and each supporting the piston of a respective piston and cylinder unit. The stroke position of each ram is adjustable by adjustment of the crosshead towards and away from the system axis. A flange (19) is provided on each cylinder (11) and, a ring (17) extends around each ram, at the radially inner side of the flange (19), and is connected to the adjustable crosshead. Ram return piston and cylinder units (20,22) are disposed between the ring and flange.

摘要翻译： 锻造机具有机架（1），径向锻造凸起（2），每个适于承载模具（5），角度地分布在围绕系统轴线（5）的公共工作平面中; 径向压力流体活塞（12）和气缸（11）单元，每个缸体形成或连接到相应的冲头并且具有对应于所需的冲程行程的冲程; 和十字头（15），其可调节地安装在机架上，并且各自支撑相应活塞和气缸单元的活塞。 每个压头的行程位置可以通过十字头朝向和远离系统轴的调整来调节。 在每个气缸（11）上设置有凸缘（19），并且在凸缘（19）的径向内侧，环（17）围绕每个冲头延伸，并且连接到可调十字头。 拉杆回转活塞和气缸单元（20,22）设置在环和凸缘之间。

公开(公告)号：US4073180A

公开(公告)日：1978-02-14

申请号：US669902

申请日：1976-03-24

申请人： Hans J. Pahnke ,  Hans-Albert Schubert

发明人： Hans J. Pahnke ,  Hans-Albert Schubert

IPC分类号： B21J9/18 ,  B21K1/76 ,  B30B15/00 ,  B21J9/12

CPC分类号： B21J9/18 ,  B21K1/761 ,  B30B1/16 ,  B30B15/007

摘要： Apparatus is provided for enlarging metal rings using a hydraulic press having a piston and anvil including a pair of generally parallel arms adapted to fit between the piston and anvil and be acted on intermediate their ends. The arms are maintained in a parallel relationship by a linkage arrangement. A pair of opposed work surfaces at one end of said parallel arms outside the press are adapted to receive a ring to be enlarged. A compensating hydraulic cylinder between the other ends of said parallel arms act between said ends to maintain said arms in parallel relationship with minimum pressure on said parallel linkage.

摘要翻译： 提供了一种用于使用具有活塞和砧座的液压机来扩大金属环的装置，所述活塞和砧座包括适于装配在活塞和砧座之间的一对大致平行的臂并且作用在其两端之间。 手臂通过联动装置保持平行关系。 在压力机外侧的所述平行臂的一端处的一对相对的工作表面适于接纳要扩大的环。 所述平行臂的另一端之间的补偿液压缸在所述端部之间作用，以使所述臂与所述平行连杆上的最小压力保持平行关系。