Back to results
US 4,412,469 AGranted
Turret punch presses having tool holders rotatably mounted in the turrets
AssigneeAmada Company, Limited
InventorsTadashi Hirata, Katsuyoshi Sakamoto
Life of this patent
Estimating the term…
Abstract
A turret punch press having a pair of upper and lower turrets ono which a plurality of pairs of upper and lower punching tools are mounted to punch a variety of holes in sheet materials is disclosed. Each of the upper and lower turrets is synchronously rotatable such that the upper and lower punching tools may be synchronously rotated or indexed in order to punch holes of the same size and shape, but different orientation, in the sheet material.
Claims4
A turret punch press having motor-driven rotatable upper and lower turrets for punching holes in sheet materials, comprising:
- a plurality of upper punching tools rotatably attached to said upper turret;
- a plurality of lower punching tools rotatably attached to said lower turret;
- a vertically movable ram attached to said punch press in such a manner that, upon activation, it drives at least one of said plurality of upper and at least one of said plurality of lower punching tools through said sheet material;
- means for synchronously rotating said upper and lower punching tools to desired positions;
- and
- said means for synchronously rotating said upper and lower punching tools including servomotors connected to drive said rotatable plurality of upper and lower punching tools,
- whereby holes of the same shape but with different orientations may be punched in said sheet material.
4 more elements
Dependencies are inferred from the claim text.