Forging presses with ejector means

Claim 2

In an upsetting or forging machine, at least one pair of relatively movable dies comprising a linearly movable workpiece receiving die and a second die adapted to carry out a circular rocking motion about a point related to the center of one of said dies, at least one linearly movable element in said workpiece receiving die, means for causing said linear movement of said workpiece receiving die at least during an upsetting or forging operation, and workpiece ejecting means co-operating with said workpiece receiving die arranged to eject a finished workpiece from said workpiece receiving die.

Claim 3

In an upsetting or forging machine as set forth in claim 1, said second die being adapted to carry out a circular rocking motion about a point at the center of said second die.

Claim 4

In an upsetting or forging machine as set forth in claim 1, said second die being adapted to carry out a circular rocking motion about a point at the center of said workpiece receiving die.

Claim 5

In an upsetting or forging machine as set forth in claim 1, said workpiece receiving die comprising a plurality of die elements, each element being adapted to be controlled independently.

Claim 6

In an upsetting or forging machine as set forth in claim 1, said workpiece receiving die comprising a plurality of concentric die elements, each element being adapted to be controlled.

Claim 7

In an upsetting or forging machine as set forth in claim 1, a plurality of die elements forming said workpiece receiving die, and pneumatic means for individually and independently controlling the movements of said plurality of die elements.

Claim 8

In aN upsetting or forging machine as set forth in claim 1, a plurality of die elements forming said workpiece receiving die and hydraulic means for individually and independently controlling the movements of said plurality of die elements.

Claim 9

In an upsetting or forging machine, at least one pair of relatively movable dies comprising a die adapted to carry out a circular rocking motion about a point related to the center of said pair of dies, a workpiece receiving die including a series of hydraulic rams, cylinders for said hydraulic rams located along a common axis, fluid supply means for causing said hydraulic rams to be movable linearly at least during an upsetting or forging operation, and workpiece ejecting means co-operating with said hydraulic rams arranged to eject a finished workpiece from said workpiece receiving die.

Claim 10

In an upsetting or forging machine, at least one pair of relatively movable dies comprising a die adapted to carry out a circular rocking motion about a point related to the center of said pair of dies, a workpiece receiving die including a series of hydraulic rams, cylinders for said hydraulic rams located along a common axis, fluid supply means for causing said hydraulic rams to be movable linearly at least during an upsetting or forging operation, and workpiece ejecting means co-operating with said hydraulic rams arranged to eject a finished workpiece from said workpiece receiving die.

Claim 11

In an upsetting or forging machine as set forth in claim 8, some at least of said hydraulic rams being located one within the other, said workpiece ejecting means including a hydraulic ram co-operating with at least one of said rams of said workpiece receiving die and being located along an axis common to the axes of said rams of said workpiece receiving die.

Claim 12

In an upsetting or forging machine as set forth in claim 8 said workpiece receiving die comprising a series of die elements, some at least of said hydraulic rams being located concentrically one within the other, one of said workpiece receiving die elements including a workpiece ejecting ram located along an axis common to the axes of said rams of said workpiece receiving die.

Claim 13

In an upsetting or forging machine at least one pair of relatively movable dies comprising a die adapted to carry out a circular rocking motion about a point related to the center of said pair of dies, and a workpiece receiving die comprising a main ram, a peripheral flange on said main ram, at least two jack rams associated with said flange of said main ram and arranged to move said flange of said ram rapidly, and thus said main ram rapidly in a direction towards said die adapted to carry out said circular rocking motion, an outer workpiece receiving die part associated with said main ram, a second ram concentric with said main ram, a second workpiece receiving die part associated with said second ram, an ejector ram concentric with said second ram, a third workpiece receiving die part associated with said ejector ram, cylinders associated with each of said rams, pistons in said cylinders associated with each of said rams, fluid supply and return means associated with each of said cylinders adapted to supply fluid to either side of said pistons of said rams.

Claim 14

In an upsetting or forging machine at least one pair of relatively movable dies comprising a die adapted to carry out a circular rocking motion about a point related to the center of said pair of dies, and a workpiece receiving die comprising a main ram, a peripheral flange on said main ram, at least two jack rams associated with said flange of said main ram and arranged to move said flange of said ram rapidly, and thus said main ram rapidly in a direction towards said die adapted to carry out said circular rocking motion, an outer workpiece receiving die part associated with said main ram, a second ram concentric with said main ram, a second workpiece receiving die part associated with said second ram, an ejector ram concentric with said second ram, a third workpiece receiving die part associated with said ejector ram, cylinders associated with each of said rams, pistons in said cylinders associated with each of said rams, fluid supply and return means associated with each of said cylinders adapted to supply fluid to either side of said pistons of said rams.

Claim 15

In an upsetting or forging machine as set forth in claim 11, an ejector ram stem projecting from said ejector ram piston oppositely to said ejector ram, a stop member associated with said ejector ram stem and movable into or out of a path of movement of said ejector ram stem and means for adjusting the position of said stop member relative to a cylinder containing said ejector ram piston thereby to enable the stroke of said ejector ram stem, and thus said ejector ram, to be controlled.

Claim 16

In an upsetting or forging machine as set forth in claim 11 said second ram cylinder being within said main ram.

Claim 17

In an upsetting or forging machine as set forth in claim 11 said second ram cylinder being within said main ram, and said ejector ram cylinder being within said main ram.