Device for the transport of workpieces within a multi-stage press

Abstract

A device for transporting workpieces within a multi-step press with a transverse crossbeam for holding the workpiece. The transverse crossbeam is aligned in its non-operative state at least approximately perpendicularly to the transporting direction of the workpieces. The crossbeam can be oriented in space by at least one driving mechanism. In addition, a second, redundant driving mechanism can be provided to move the transverse crossbeam in an emergency operation.

1 . A device for transporting workpieces within a multi-step press having a transverse crossbeam to hold the workpiece, to be aligned in a non-operative state thereof at least approximately perpendicularly to a transporting direction of the workpieces and configured to be oriented by at least one first driving mechanism, and a second, redundant driving mechanism is provided for moving the transverse crossbeam in an emergency operation.  
     
     
         2 . The device of  claim 1 , wherein the at least one first driving mechanism and the second driving mechanism each are configured such that each can be used, by itself, for the emergency operation.  
     
     
         3 . The device of  claim 1 , wherein the at least one first driving mechanism and the second driving mechanism are linear direct driving mechanisms.  
     
     
         4 . The device of  claim 3 , wherein the at least one first driving mechanism and the second driving mechanism have a common secondary part and two primary parts that are independent of and interact with one another.  
     
     
         5 . The device of  claim 1 , wherein the at least one first driving mechanism and the second driving mechanism are rotating electric motors.  
     
     
         6 . The device of  claim 5 , wherein the electric motors have a common rotor and stators that are arranged independently of one another.  
     
     
         7 . The device of  claim 5 , wherein the electric motors have mutually independent rotors with associated stators and are connected over a transmission with the transverse crossbeam.  
     
     
         8 . The device of  claim 1 , wherein each driving mechanism of the transverse crossbeam is provided with an additional, redundant driving mechanism.  
     
     
         9 . The device of  claim 1 , wherein the transverse crossbeam is operatively held at two ends thereof by levers, at least two of the levers being driveable by at least one first and second driving mechanism.  
     
     
         10 . A multi-step press with at least one device for transporting workpieces according to  claim 1 .  
     
     
         11 . A multi-step press according to  claim 10 , wherein the at least one first driving mechanism and the second driving mechanism each are configured such that each can be used, by itself, for the emergency operation.  
     
     
         12 . A multi-step press according to  claim 10 , wherein the at least one first driving mechanism and the second driving mechanism are linear direct driving mechanisms.  
     
     
         13 . A multi-step press according to  claim 12 , wherein the at least one first driving mechanism and the second driving mechanism have a common secondary part and two primary parts that are independent of and interact with one another.  
     
     
         14 . A multi-step press according to  claim 10 , wherein the at least one first driving mechanism and the second driving mechanism are rotating electric motors.  
     
     
         15 . A multi-step press according to  claim 14 , wherein the electric motors have a common rotor and stators that are arranged independently of one another.  
     
     
         16 . A multi-step press according to  claim 14 , wherein the electric motors have mutually independent rotors with associated stators and are connected over a transmission with the transverse crossbeam.  
     
     
         17 . A multi-step press according to  claim 10 , wherein each driving mechanism of the transverse crossbeam is provided with an additional, redundant driving mechanism.  
     
     
         18 . A multi-step press according to  claim 10 , wherein the transverse crossbeam is operatively held at two ends thereof by levers, at least two of the levers being driveable by at least one first and second driving mechanism.