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US 5,027,683 AGranted
Punching device for thin plates and punching units used with punching device
AssigneeUshio Kogyo Co., Ltd.
InventorMasakazu Kakimoto
Life of this patent
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AssigneeUshio Kogyo Co., Ltd.
InventorMasakazu Kakimoto
Estimating the term…
A punching device is provided which includes a plurality of punching units arranged in a side-by-side fashion on a substantially horizontal working surface. The device includes a plurality of punches and dies of different shaped, and a moving assembly, for supporting a holder frame, which moves a workpiece along both X- and Y-axes on a working table. A control unit is provided for inputting punching positions on the workpiece as well as the shape(s) of the holes to be punched, as well as for controlling operation of the moving assembly and punching units in response to inputted data, and for moving the punching positions of the workpiece below the desired punching units to perform punching operations. The punching units each comprises a substantially -shaped supporting member in which a piston is provided for moving a punch upwardly and downwardly. The punch is provided in one arm of the -shaped support member, with a corresponding die in a lower portion of the support member.
A device for punching a thin plate-like workpiece, said device comprising a plurality of punching units arranged in a side-by-side fashion on a working table, each of said punching units having a punch and a die of a predetermined shape, a lifting mechanism including a lifting piston attached on a support member, wherein said punch is detachably mounted in a fixing hole in said support member below said lifting piston, means for detachably connecting one end of said punch to said lifting piston, and means for lifting and lowering said punch in a predetermined direction, said lifting mechanism being adapted to horizontally slide on said support member in a direction perpendicular to said predetermined direction, said device further comprising a moving assembly for movably supporting at least one frame which is adapted to hold said thin plate-like workpiece, said moving assembly comprising means for moving said frame in both X-axis and Y-axis directions along a surface of said working table, said device further comprising a control unit for inputting a punching position and a punching shape data, and for controlling operation of said moving assembly and said punching units in response to said data, said controlling unit further comprising means for moving a workpiece into desired punching positions below said punching units.
A punching unit adapted for use in a punching device having a lifting assembly, said lifting assembly including a movably positioned lifting position attached to one side of a subtantially -shaped supporting member, said supporting member comprising at least one attaching hole and a punch detachably fitted within each of said at least one attaching hole, said unit further comprising means for lifting and lowering said punch in a predetermined direction, said lifting assembly being horizontally movable on said support member perpendicular to said predetermined direction, said punch including a front end and a rear end, said punch rear end being detachably connected to said lifting piston, said punching unit further including a die located below each of said at least one attaching hole, corresponding to said punch, said die being detachably positioned within a lower portion of said supporting member.
A punching device for punching at least one hole in a thin, substantially flat workpiece, said punching device comprising:
A punching unit adapted to be used with a punching device for punching a plurality of holes of predetermined shapes in a workpiece, said punching unit comprising:
A punching device for punching at least one hole in a thin, substantially flat workpiece, said punching device comprising:
Dependencies are inferred from the claim text.