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US 4,569,267 AGranted
Multitool punch mechanism
AssigneeTrumpf GmbH & Co.
InventorHans Klingel
Life of this patent
Estimating the term…
Abstract
A punch press uses a punch tool assembly which contains at least two punch pins of different diameters or cross-sections which are readily interchangeable in the working position by a control element which is slidable about the pin support member, and actuating means. When the punch tool assembly is rotatable about the ram to effect the movement of the punch pins from operative to inoperative positions, then a cooperating movable die is provided in order to ensure that the aligned die bores are cooperatively dimensioned and configured with respect to the punch pins.
Claims16
In a punch press, the combination comprising:
- A. a housing;
- B. a ram reciprocably mounted in said housing;
- C. a punch assembly removably supported on said ram and including a punch pin support member underlying said ram, at least two punch pins disposed within bores in said support member and aligned with said ram, said pins each having a working end adapted to strike the associated workpiece and an opposite end being movable within said bores along axes parallel to the axis of reciprocation of said ram from a working position to an elevated at rest position, and means for moving said pins from said working position to said elevated position;
- and
- D. control means for moving a selected one of said punch pins to said working position and locking it in such working position and concurrently operable to dispose the others of said pins in said elevated position so that only the selected one of said punch pins is in a working position.
2 more elements
In a punch press, the combination comprising:
- A. a housing;
- B. a ram reciprocably mounted in said housing;
- C. a punch assembly including a punch pin support member, at least two punch pins each having a working end adapted to strike the associated workpiece and an opposite end disposed within bores in said support member, said pins being movable within said bores along axes parallel to the axis of reciprocation of said ram from a working position to an elevated at rest position, and means for moving said pins from said working position to said elevated position;
- and
- D. control means for moving a selected one of said punch pins to said working position and locking it in such working position and for disposing the other of said pins in said elevated position, said control means including a control element slidably supported on said support member and having at least one recess therein receiving said other end of said other punch pin in said elevated position, said slidable element being mounted on said support member for sliding rotation about an axis parallel to the direction of movement of said punch pins.
2 more elements
In a punch press, the combination comprising:
- A. a housing;
- B. a ram reciprocably mounted in said housing;
- C. a punch assembly mounted on said ram for rotation thereabout and including a punch pin support member, at least two punch pins each having a working end adapted to strike the associated workpiece and an opposite end disposed within bores in said support member, said pins being movable within said bores along axes parallel to the axis of reciprocation of said ram from a working position to an elevated at rest position, and means for moving said pins from said working position to said elevated position;
- D. control means for moving a selected one of said punch pins to said working position and locking it in such working position and for disposing the other of said pins in said elevated position, said control means including a control element unitary with the end of said punch ram adjacent said support member;
- and
- E. a die mounted to rotate synchronously with said punch assembly to locate the cooperating die bores thereof in alignment with the cooperating punch pins.
3 more elements
In a punch press, the combination comprising:
- A. a housing;
- B. a ram reciprocably mounted in said housing;
- C. a punch assembly rotatably mounted on said ram and including a punch pin support member, at least two punch pins each having a working end adapted to strike the associated workpiece and an opposite end disposed within bores along axes parallel to the axis of reciprocation of said ram from a working position to an elevated at rest position, and means for moving said pins from said working position to said elevated position, the axis of rotation of said punch assembly on said ram being displaced from the geometric axis of said ram whereby the geometric axis of the selected punch pin in the working position coincides with the geometric axis of said ram;
- and
- D. control means for moving a selected one of said punch pins to said working position and locking it in such working position and for disposing the other of said pins in said elevated position wherein said control means includes an element having an attaching pin on one surface locking it on said ram and a shaft on its other surface parallel to and laterally displaced from the axis of said attaching pin to provide the rotational support for said punch assembly.
2 more elements
In a punch press, the combination comprising:
- A. a housing;
- B. a ram reciprocably mounted in said housing;
- C. a punch assembly removably supported on said ram and including a punch pin support member, at least two punch pins each having a working end adapted to strike the associated workpiece and an opposite end disposed within bores in said support member, said pins being movable within said bores along axes parallel to the axis of reciprocation of said ram from a working position to an elevated at rest position, and means for moving said pins from said working position to said elevated position;
- and
- D. control means for moving a selected one of said punch pins to said working position and locking it in such working position and operable to dispose the other of said pins in said elevated position, said control means including a control element slidably supported on said support member for rotation about an axis parallel to the direction of axis of movement of said punch pins.
2 more elements
Dependencies are inferred from the claim text.