Working chamber

Abstract

A blasting unit has a working chamber with access for the introduction of a robot arm. In the region of the access, a sealing device is provided which is fastened to the robot arm or to the chamber wall. The working chamber serves for the blasting of workpieces by means of a blasting medium.

1 . A working chamber for a blasting unit which is provided with a robot arm ( 10 ) for the manipulation of a workpiece to be blasted, comprising a chamber wall ( 14 ) which has an access for the introduction of the robot arm ( 10 ), with a sealing device being provided in the region of the access which seals between the robot arm and the chamber wall ( 14 ), 
 wherein the sealing device has a lock gate ( 20 ,  30 ;  40 ,  60 ) with at least one wing and provided with an opening ( 24 ,  44 ) for the robot arm ( 10 ), with a sealing element ( 26 ,  50 ) being provided in the region of the opening ( 24 ,  44 ) which seals between the robot arm ( 10 ) and the chamber wall ( 14 ).    
     
     
         2 . A working chamber in accordance with  claim 1 , wherein the lock gate has at least one sliding wing ( 20 ,  30 ) or swing wing ( 40 ,  60 ).  
     
     
         3 . A working chamber in accordance with  claim 1 , wherein the lock gate has a plurality of wings ( 20 ,  30 ;  40 ,  60 ) which each have cutouts ( 24 A,  24 B;  44 ) which jointly form the opening.  
     
     
         4 . A working chamber in accordance with  claim 1 , wherein a rim of the opening ( 24 ) of the lock gate is provided with the sealing element ( 26 ).  
     
     
         5 . A working chamber in accordance with  claim 1 , wherein the sealing element comprises a substantially spherical element ( 50 ) which is provided with a passage opening for the robot arm ( 10 ).  
     
     
         6 . A working chamber for a blasting unit which is provided with a robot arm ( 10 ) for the manipulation of a workpiece to be blasted, comprising a chamber wall ( 14 ) which has an access for the introduction of the robot arm ( 10 ), with an elastic sealing device ( 70 ,  80 ) being provided in the region of the access which seals between the robot arm ( 10 ) and the chamber wall ( 14 ), with the sealing device ( 70 ,  80 ) being able to be fastened to the robot arm ( 10 ), wherein a latching means ( 72 ,  76 ;  102 ) is provided at the chamber wall ( 14 ) which effects a latching between the sealing device ( 70 ,  80 ) and the working chamber ( 12 ).  
     
     
         7 . A working chamber in accordance with  claim 6 , wherein the latching means ( 102 ) is actuable by a movement of the robot arm ( 10 ).  
     
     
         8 . A working chamber in accordance with  claim 7 , wherein the latching means ( 76 ) is made in the manner of a bayonet fastener.  
     
     
         9 . A working chamber in accordance with  claim 7 , wherein the sealing device has a self-supporting disk ( 70 ) made of flexible material.  
     
     
         10 . A working chamber in accordance with  claim 7 , wherein a supporting means ( 82 ,  88 ), in particular a releasable supporting means, is provided between an inner and an outer rim of the sealing device ( 10 ) and is movable together with the robot arm ( 10 ).  
     
     
         11 . A working chamber in accordance with  claim 10 , wherein the supporting means includes at least one pivoted lever ( 82 ).  
     
     
         12 . A working chamber in accordance with  claim 7 , characterized in that the sealing device is designed in the manner of a bellows ( 80 ).