Grinding wheel, intermediate product and method for producing a grnding wheel of this type

Abstract

A grinding wheel for the grinding of curved surface portions ( 0 ) consists basically of a carrying body ( 2, 12 ) and an abrasive ( 3, 13, 23 ) applied to the carrying body. The carrying body ( 2, 12 ) has a circumferential surface ( 4 ), of which the section relative to a radial plane (R) has a curvature. The abrasive ( 3, 13, 23 ) is arranged on the carrying body ( 2, 12 ), at least in the region of the circumferential surface ( 4 ). The abrasive thereby likewise has, in section, relative to the radial plane (R), a curvature which corresponds essentially to the curvature of the circumferential surface ( 4 ).

1 . A grinding wheel for grinding curved surface portions comprising a carrying body and an abrasive applied to the carrying body, wherein the carrying body has a circumferential surface which has, in section in a radial plane, at least partially a convex curvature, and wherein the abrasive is arranged on the carrying body, at least in the region of the circumferential surface, so that the abrasive has, in section, relative to the radial plane R, a curvature which corresponds approximately to the curvature of the circumferential surface.  
     
     
         2 . A grinding wheel of  claim 1 , wherein the carrying body is designed as a ring.  
     
     
         3 . A grinding wheel of  claim 1 , wherein the crying body is designed as a disk.  
     
     
         4 . A grinding wheel of  claim 1 , wherein the abrasive is clamped on the carrying body by means of a clamping device.  
     
     
         5 . A grinding wheel of  claim 4 , wherein the clamping device is provided with a holding means for fastening the grinding wheel to a grinding machine.  
     
     
         6 . A grinding wheel of  claim 1 , wherein the abrasive is glued to the carrying body.  
     
     
         7 . A grinding wheel of  claim 1 , wherein the abrasive consists of segments which are arranged on the carrying body preferably so as to overlap in the circumferential direction.  
     
     
         8 . A grinding wheel of  claim 7 , wherein the segments are of almond-shaped design.  
     
     
         9 . A grinding wheel of  claim 2 , wherein the abrasive is designed as a belt which is wound in coils on the ring preferably so as to overlap, as seen in the circumferential direction.  
     
     
         10 . A grinding wheel of  claim 7 , wherein the overlap is designed in such a way that the distance of the front end of the segments respectively the coils, in the direction of rotation, from the axis of rotation is shorter than the distance of the rear end, in the direction of rotation, from the axis of rotation.  
     
     
         11 . A grinding wheel of  claim 1 , wherein the abrasive is designed as a belt which, as seen in the circumferential direction, is applied to the carrying body at least on an outer circumferential line of the circumferential surface.  
     
     
         12 . A grinding wheel of  claim 11 , wherein the belt i is provided along its edges with indentations or cutouts  
     
     
         13 . A grinding wheel of  claim 1 , wherein the circumferential surface has a radius of curvature of 3 mm to 8 mm.  
     
     
         14 . A grinding wheel of  claim 1 , wherein the carrier consists of glass-fiber-reinforced plastic.  
     
     
         15 . An intermediate product for the production of a grinding wheel of  claim 7 , wherein the segments are fastened with an inner end to the carrying body and wherein the outer end of the segments projects beyond the outer, circumferential line of the carrying body.  
     
     
         16 . A method of making a grinding wheel of  claim 7 , comprising steps of 
 providing an intermediate product comprising abrasive segments arranged on a carrying body so as to overlap in a circumferential direction, the segments having an outer end fastened to the carrying body and an outer end projecting beyond an outer circumferential line of the carrying body,    bending of the outer ends of the segments around the curved circumferential portion and    fastening of the outer ends to the carrying body.