Two hole automatic precision punch

Cutting – Processes – Making and using a registration cut

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Details

83 50, 83215, 83368, 83451, 83560, B21D 2804, B26F 138

Patent

active

046962107

ABSTRACT:
An apparatus for producing registration holes in a sheet-like workpiece that is provided with registration marks. The apparatus comprises: a frame; sheet holding means associated with the frame for holding a workpiece in place; a main carriage associated with the frame, with one of the main carriage and the sheet holding means, and hence a workpiece, being movable back and forth in a first direction relative to the other; a cross carriage mounted in the main carriage, with one of the cross carriage and the sheet holding means being movable back and forth in a second direction relative to the other, with the second direction being at right angles to the first direction; a further carriage mounted on the cross carriage, with one of the further carriage and the sheet holding means being movable relative to the other substantially in the first direction; first sensor means for sensing the position of the main carriage relative to a given one of the registration marks on the workpiece; second sensor means for sensing the position of the cross carriage relative to the same given registration mark on the workpiece; third sensor means for sensig the position of the further carriage relative to another one of the registration marks on the workpiece; a first punch assembly that is secured to the cross carriage and is provided with a first punch to punch out said given one of the registration marks to produce a registration hole in the workpiece; and a second punch assembly that is secured to the further carriage and is provided with a second punch to punch out said another one of the registration marks to produce another registration hole in the workpiece.

REFERENCES:
patent: 3197353 (1965-07-01), Williams et al.
patent: 3293439 (1966-12-01), Marantette
patent: 4349997 (1982-09-01), Hayasaka et al.
patent: 4541317 (1985-09-01), VanHumbeeck et al.

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