Drawbench

Abstract

A draw bench has a draw bed ( 1 ), with a die block ( 2 ) defining a draw axis ( 11 ), with a draw carriage ( 3 ) movable along the draw bed ( 1 ) and aligned with respect to the draw axis ( 11 ), and with at least two racks ( 5 ) arranged fixedly on the draw bed ( 1 ) and extending in the direction of the draw axis ( 11 ), which racks mesh with drivable drive gears ( 7, 8 ) provided in the draw carriage ( 3 ). The toothing ( 6 ) of the racks ( 5 ) are provided on sides of the racks ( 5 ) facing towards or away from each other, the line of action of the resulting tangential components (Ft) of the tooth forces (F) coincides with the draw axis ( 11 ) and the torques caused by the radial components (Fr) of the tooth forces (F) in the region of the two racks ( 5 ) and acting on the draw carriage ( 3 ) in opposite directions cancel each other out.

1 . A draw bench comprising:
 a draw bed with a die block defining a draw axis;   a draw carriage movable along the draw bed and aligned with respect to the draw axis, and having at least two racks arranged in a fixed position on the draw bed and extending in a direction of the draw axis;   wherein the racks mesh with drivable drive gears provided in the draw carriage;   wherein the racks have toothing provided on sides of the racks that face towards or away from each other;   wherein tooth forces are formed by the drive gears engaged with the toothing, and a line of action of tangential components of the tooth forces coincides with the draw axis; and   wherein torques caused by radial components of the tooth forces in a region of the two racks and acting on the draw carriage in opposite directions cancel each other out.   
     
     
         2 . The draw bench according to  claim 1 , wherein the racks each mesh with two of the drivable drive gears mounted in the draw carriage. 
     
     
         3 . The draw bench according to  claim 1 , wherein the drive gears can are each be driven by a gear motor. 
     
     
         4 . The draw bench according to  claim 1 , wherein the racks are arranged in a plane inclined about the draw axis. 
     
     
         5 . The draw bench according to  claim 2 , wherein the drive gears are each be driven by a gear motor. 
     
     
         6 . The draw bench according to  claim 5 , wherein the racks are arranged in a plane inclined about the draw axis. 
     
     
         7 . The draw bench according to  claim 2 , wherein the racks are arranged in a plane inclined about the draw axis. 
     
     
         8 . The draw bench according to  claim 3 , wherein the racks are arranged in a plane inclined about the draw axis.