Grinding method and grinding machine

Abstract

In a method for circular grinding of a workpiece ( 14 ), in which a rotating grinding wheel ( 18 ) is positioned against a face ( 30 ) to be ground of the workpiece, while simultaneously the workpiece rotates about its longitudinal axis, and the face to be ground is defined by an edge ( 34 ) and merges with a neighboring face ( 36 ), the object is for the previously necessary deburring operation that was required following the grinding operation to be dispensed with. To that end, it is provided that a deburring mandrel ( 22 ) is pressed during grinding against the neighboring face ( 36 ), so that a burr ( 32 ) created in grinding the face to be ground is pressed back against this face. An apparatus with which this method can be performed is also described.

1 . A method for circular grinding of a workpiece ( 14 ), in which a rotating grinding wheel ( 18 ) is positioned against a face ( 30 ) to be ground of the workpiece, while simultaneously the workpiece rotates about its longitudinal axis, and the face to be ground is defined by an edge ( 34 ) and merges with a neighboring face ( 36 ), characterized in that a deburring mandrel ( 22 ) is pressed during grinding against the neighboring face ( 36 ), so that a burr ( 32 ) created in grinding the face to be ground is pressed back against this face.  
     
     
         2 . The method of  claim 1 , characterized in that the deburring mandrel ( 22 ) is adjusted such that it protrudes outward past the neighboring face ( 36 ) and the edge ( 34 ) toward the face ( 30 ) to be ground.  
     
     
         3 . The method of  claim 2 , characterized in that the deburring mandrel ( 22 ) is adjusted such that it protrudes with approximately half its diameter past the neighboring face ( 36 ).  
     
     
         4 . The method of one of claims  1 - 3 , characterized in that the deburring mandrel ( 22 ) is pressed onto the neighboring face  36 ) with a force between 10 and 100 N.  
     
     
         5 . The method of  claim 4 , characterized in that the deburring mandrel ( 22 ) is pressed onto the neighboring face ( 36 ) with a force approximately 50 N.  
     
     
         6 . An apparatus for circular grinding of a workpiece ( 14 ), having a grinding wheel ( 18 ) and a chuck ( 12 ) for the workpiece ( 14 ) to be ground, characterized in that a deburring mandrel ( 22 ) is provided, which can be pressed onto a neighboring face ( 36 ) adjoining the face ( 30 ) to be ground of the workpiece.  
     
     
         7 . The apparatus of  claim 6 , characterized in that the deburring mandrel ( 22 ) has a flat end face.  
     
     
         8 . The apparatus of  claim 6 , characterized in that the deburring mandrel ( 22 ) has a conical contact-pressure face ( 38 ).  
     
     
         9 . The apparatus of one of claims  6 - 8 , characterized in that the deburring mandrel ( 22 ) is disposed such that longitudinal axis extends approximately at a right angle to the longitudinal axis of the workpiece ( 14 ) to be machined.  
     
     
         10 . The apparatus of one of claims  6 - 8 , characterized in that the deburring mandrel ( 22 ) is disposed such that its longitudinal axis extends at an angle other than 90° relative to the longitudinal axis of the workpiece ( 14 ) to be machined.  
     
     
         11 . The apparatus of one of claims  6 - 10 , characterized in that a pneumatic cylinder ( 26 ) is provided, which can press the deburring mandrel ( 22 ) with an adjustable force against the workpiece ( 14 ) to be machined.