Press for punching and cutting plate-shaped workpieces, especially sheet metal workpieces
AssigneeC. Behrens AG
InventorWalter Bredow
Life of this patent
Estimating the term…
Abstract
A combined press for punching and cutting respectively trimming a plate-shaped workpiece comprises at least one punching tool including a punch reciprocable along an axis and a first dirve for reciprocating said punch, at least one cutting tool including a knife reciprocatably parallel to the punch and a second drive for reciprocating the knife, a main drive, and a transmission arrangement connected at one end to the main drive and selectively connectable to said first and second drive for reciprocating either said punch or said cutting knife.
Claims16
A combined press for punching and cutting plate-shaped workpieces, especially workpieces of sheet metal, comprising support means;
- at least one punching tool means mounted on said support means and including a punch reciprocable along an axis;
- first means operatively connected to said punch for reciprocating the same along said axis;
- cutting tool means mounted on said support means and including at least one knife reciprocable in a plane parallel to said axis;
- second means operatively connected to said knife for reciprocating the same in said plane, each of said first and second reciprocating means comprising a plunger guided in said support means for reciprocating movement and eccentric drive means connected to one end of said plunger, said punch and knife being connected to the other end of the respective plunger;
- main drive means;
- and transmission means connected to said main drive means and selectively connectable to said first and second reciprocating means to reciprocate either said punch or said cutting knife, said transmission means comprising a cardan shaft connected at one end to said main drive means and a coupling shaft connected to the other end of said cardan shaft, and means cooperating with said coupling shaft for moving the latter selectively between two positions for respectively coupling said coupling shaft to the eccentric drive means of either said first or said second reciprocating means.
A combined press for punching and cutting plate-shaped workpieces, especially workpieces of sheet metal, comprising support means;
- at least one punching tool means mounted on said support means and including a punch reciprocable along an axis;
- first means operatively connected to said punch for reciprocating the same along said axis;
- two cutting tool means mounted on said support each including an upper cutting knife reciprocable in a respective plane parallel to said axis and a lower cutting die arranged for cooperation with a respective upper cutting knife, said two cutting tool means being movable relative to each other in a plane normal to said axis and selectively in two directions which are normal to each other between a rest position and a working position;
- second means for reciprocating said upper cutting knives, said second reciprocating means being constructed for coupling the upper cutting knife of each of said cutting tool means in said working position for reciprocation;
- main drive means;
- and transmission means connected to said main drive means and selectively connectable to said first and second reciprocating means to reciprocate either said punch or that upper cutting knive which is in said working position.
Dependencies are inferred from the claim text.