Deformation Method and Press
OwnerHilmar Hubbesinventor
Life of this patent
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Abstract
In a forming process with a press having in a frame a ram closing through the force of a cylinder with a moveable piston against a press table in a straight-line movement, the piston initially acts upon at least one knuckle joint system during the closing of the press, and a hydraulic cushion of the ram concludes the closing process with extension of the knuckle joint system in movement direction of the piston and straight-line support thereof against the frame. In a press having in a frame a ram closing through the force of a cylinder with a moveable piston against a press table in a straight-line movement, the ram is connected so as to be fixed with respect to the frame via at least two identically constructed knuckle joint systems, and the ram has a hydraulic cushion.
Claims10
A forming process using a press having, in a frame, a ram configured to close through a force of a cylinder with a moveable piston, against a press table in a straight-line movement, the cylinder having a moveable piston, comprising:
- beginning the closing process closing the press, wherein the moveable piston acts upon at least one knuckle joint system;
- and
- concluding the closing process by a hydraulic cushion of the ram with extension of the knuckle joint system in a movement direction of the piston and straight-line support thereof against the frame;
- moving the hydraulic cushion out initially during the closing of the press;
- moving the hydraulic cushion in with impingement on a workpiece;
- and
- moving the hydraulic cushion out after extension of the at least one knuckle joint system to conclude the forming process.
A press comprising:
- a frame;
- a cylinder with a moveable piston;
- a press table;
- a ram arranged in the frame and configured to close through a force of the cylinder against the press table in a straight-line movement and having a hydraulic cushion;
- and
- at least two identically constructed knuckle joint systems configured to connect the ram to be fixed with respect to the frame, wherein each of the at least two identically constructed knuckle joint systems comprises:
- a lever having a first end and a second end, the lever connected at the first end via a first rotational axis to the ram;
- a T-shaped knuckle lever connected at a first end of a continuous leg to the second end of the lever via a second rotational axis,
- the continuous leg is connected at a second end opposite the first end in a receptacle that is fixed with respect to the frame via a third rotational axis,
- wherein the three rotational axes are arranged in a line in a movement direction of the ram in a closed position of the press,
- a connection lever connected at a first end to the one piston via a fifth rotational axis,
- a free end of the extending leg of the T-shaped knuckle lever is connected via a fourth rotational axis to a second end of the connection lever;
- wherein front sides of the first end of the continuous leg of the knuckle lever are supported on respective front sides of the lever and the receptacle,
- wherein the first end lever is supported on a correspondingly formed surface of the ram, which has a hydraulic cushion, and
- wherein in the closed position of the press, a flat side of the connection lever contacts an undersides of a platform that is fixed with respect to the piston.
Dependencies are inferred from the claim text.