Device for cutting and grinding, chucking device and rotating tool with vibration damping

Abstract

The device for cutting and grinding contains a drive unit, a drive spindle, and means for chucking a rotating tool onto the drive spindle. Vibration damping means are provided between the tool and the chucking means. The vibration-damping means are provided in the form of a coating made of elastic material applied to the chucking means or to the tool or are provided in the form of one or more discs, which are made of elastic material and which are inserted between the tool and the chucking means.

1 . Device for cutting and grinding with a drive unit ( 10 ), a drive spindle ( 14 ) and means ( 16 ,  24 ) for clamping a rotating tool ( 20 ) onto the drive spindle ( 14 ), wherein vibration-damping means are provided between the tool ( 20 ) and the clamping means ( 16 ,  24 ), 
 characterized in that the vibration-damping means are provided in the form of a coating of elastic material on the clamping means ( 16 ,  24 ) or the tool ( 20 ) or in the form of one or more disks ( 36 ) of elastic material to be inserted between the tool ( 20 ) and the clamping means ( 16 ,  24 ).    
     
     
         2 . Device according to  claim 1 , wherein the clamping means ( 16 ,  24 ) have the coating ( 34 ).  
     
     
         3 . Device according to  claim 1 , wherein the tool ( 20 ) has the coating ( 34 ).  
     
     
         4 . Device according to  claim 1 , wherein the coating ( 34 ) is provided partly on the clamping means ( 16 ,  24 ) and partly on the tool ( 20 ).  
     
     
         5 . Device according to  claim 1 , wherein the elastic means are present at least partly as disks ( 36 ) of elastic material.  
     
     
         6 . Device according to one of  claims 1  to  5 , wherein the coating ( 34 ) has raised sections ( 40 ) on the surfaces lying normal to the axis of the drive spindle.  
     
     
         7 . Device according to  claim 6 , wherein the coating ( 34 ) is present in laminar form on the clamping surfaces ( 30 ,  32 ) of the clamping flange ( 16 ), the clamping nut ( 24 ) or of the tools ( 20 ) and the raised sections ( 40 ) project from a flat coating ( 46 ).  
     
     
         8 . Device according to  claim 6 , wherein the raised sections ( 40 ) are present as discrete coatings on the clamping surfaces ( 30 ,  32 ) of the clamping flange ( 16 ), the clamping nut ( 24 ) or of the tool ( 20 ).  
     
     
         9 . Device according to  claim 1 , wherein the vibration-damping means are present at least partially as disks ( 36 ) of elastic material.  
     
     
         10 . Clamping device for clamping a cutting or grinding tool onto a drive spindle ( 14 ), with two clamping elements ( 16 ,  24 ) with vibration-damping means, 
 characterized in that the vibration-damping means are a coating ( 34 ) of elastic material on the clamping elements ( 16 ,  24 ).    
     
     
         11 . Clamping device according to  claim 10 , wherein the elastic coating ( 34 ) has raised sections ( 40 ).  
     
     
         12 . Clamping device according to  claim 11 , wherein the raised sections are at least three ribs ( 40 ) running radially or in the form of spiral arms.  
     
     
         13 . Tool for use with a device according to  claims 3  to  9 , wherein the tool ( 20 ) has a central fixing hole ( 28 ), 
 characterized in that the inner edge of the fixing hole ( 28 ) of the tool ( 20 ) has a coating ( 34 ) made of the elastic material.    
     
     
         14 . Tool according to  claim 7 , wherein the surface areas surrounding the fixing hole ( 28 ) additionally have a coating ( 34 ) made of the elastic material.