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US 6,216,572 B1Granted
Machine tool for machining sheet metal
AssigneeRainer S.r.l.
InventorFederico Raimondi
Life of this patent
Estimating the term…
Abstract
A machine for punching sheet metal, and having a worktable beneath which are located two stores for storing blank and machined sheets. Over each store, the worktable has a respective opening, which is closed selectively by a respective movable closing device, which, in the closed position, defines a portion of the worktable. Over one of the two stores, a handling device is provided for partly lifting a blank sheet from the store and over the worktable; and, over the other of the two stores, a movable stop element is provided for retaining the machined sheet over the respective opening as the respective movable closing device is moved.
Claims21
A machine tool for machining sheet metal, comprising:
- a) a punch unit including a ram at a work station;
- b) a worktable including said workstation, said worktable having a top disposed directly below said ram;
- c) a sheet feeding and positioning device for feeding and positioning a sheet at said work station;
- d) a control unit for controlling said punch unit and said sheet feeding and positioning device;
- e) first and second stores located directly beneath said worktable;
- f) said worktable including first and second openings disposed over respective said first and second stores;
- and
- g) first and second closures operably associated with respective said first and second openings to permit respective said first and second stores to communicate with said top of said worktable.
5 more elements
A machine tool for machining sheet metal, comprising:
- a) a punch unit including a ram;
- b) a worktable including a top disposed directly below said ram;
- c) first and second stores located directly beneath said worktable and said top;
- d) said worktable including first and second openings disposed over respective said first and second stores;
- and
- e) first and second movable closures operably associated with respective said first and second openings to permit respective said first and second stores to communicate with said top of said worktable.
3 more elements
A machine tool for machining sheet metal, comprising:
- a) a worktable having a top;
- b) a punch unit located on said worktable at a work station;
- c) said worktable including a sheet feeding and positioning device for feeding and positioning a sheet at said work station, said sheet feeding and positioning device being configured to move the sheet over said worktable along two mutually perpendicular horizontal axes;
- d) a control unit for controlling said punch unit and said sheet feeding and positioning device;
- e) first and second stores located directly beneath said worktable;
- f) said worktable including first and second openings disposed over respective said first and second stores;
- and
- g) first and second closures operably associated with respective said first and second openings, said closures being movable between open and closed positions and configured to permit respective said first and second stores to communicate with said top of said worktable when in said open position.
5 more elements
A machine tool for machining sheet metal, comprising:
- a) a worktable having a top;
- b) a punch unit located on said worktable at a work station;
- c) first and second stores located beneath said worktable;
- d) said worktable including first and second openings disposed over respective said first and second stores;
- e) first and second closures operably associated with respective said first and second openings to permit respective said first and second stores to communicate with said top of said worktable;
- f) said first and second closures are movable between a closed position wherein said first and second closures form a portion of said worktable, and an open position wherein the corresponding said first and second stores communicate with said top of said worktable;
- g) a movable loading platform located within said first store and disposed beneath said first opening, said movable platform being configured to position a sheet at said first opening;
- h) a handling device configured to lift a portion of the sheet located at said first opening;
- and
- i) said first closure when moving to said closed position is configured to slide beneath and engage the sheet to lift another portion of the sheet onto said worktable.
7 more elements
A machine tool for machining sheet metal, comprising:
- a) a worktable having a top;
- b) a punch unit located on said worktable at a work station;
- c) a sheet feeding and positioning device for feeding and positioning a sheet at said work station;
- d) a control unit for controlling said punch unit and said sheet feeding and positioning device;
- e) first and second stores located beneath said worktable;
- f) said worktable including first and second openings disposed over respective said first and second stores;
- and
- g) first and second closing means operably associated with respective said first and second openings for permitting respective said first and second stores to communicate with said top of said worktable.
5 more elements
Dependencies are inferred from the claim text.