Assembly for grinding electrodes and grinding wheel

Abstract

A device for processing welding electrodes with a grinding wheel having a selected grain size driven by a driving motor with a shaft, which runs in a housing, wherein at least one opening is provided in the housing for guiding a welding electrode for processing in a defined position relative to the grinding wheel is characterized in that a recess adapted to the grain size of the grinding material is provided in the range provided for grinding on the surface of the grinding wheel which is coated with grinding material.

1 . A device for grinding welding electrodes comprising:
 a grinding wheel with a grinding range on the surface of the grinding wheel, said grinding range coated with a graining material with a selected grain size;   a driving motor and a driving shaft for driving said grinding wheel; and   a housing, said housing forming a space, said grinding wheel rotating inside said space and wherein at least one opening is provided in said housing for guiding a welding electrode for grinding in a defined position relative to said grinding wheel,   wherein a recess is formed in said grinding range having a selected depth, said depth of said recess being adapted to said grain size of said grinding material.   
     
     
         2 . The device of  claim 1 , wherein said surface of said grinding wheel has an uncoated center range and an edge and wherein said recess extends from said uncoated center range to said edge of said grinding wheel. 
     
     
         3 . The device of  claim 1 , wherein
 (a) said grinding wheel is provided with a thinner cutting edge,   (b) a slit is provided in said housing, said slit extending perpendicular to said surface of said grinding wheel and wherein said slit is provided for cutting a welding electrode with said cutting edge, and   (c) said cutting edge forms extends in a plane formed by the remaining portion of said grinding wheel in such a way that said grinding wheel forms said cutting edge in the range of its circumference without a step.   
     
     
         4 . The device according to  claim 1 , wherein two grinding wheels are provided, said two grinding wheels laying on top of each other and having a different grain size. 
     
     
         5 . The device of  claim 4 , wherein said cutting edge is provided on the side opposite to the other one of said two grinding wheels. 
     
     
         6 . The device of  claim 1 , wherein the diameter of said grinding wheel is adapted to said grain size of said grinding material. 
     
     
         7 . A grinding wheel for use in a device for grinding welding electrodes, comprising:
 a grinding range on the surface of the grinding wheel, said grinding range coated with a graining material with a selected grain size, the grinding range having a recess formed therein having a selected depth, said depth of said recess being adapted to said grain size of said grinding material.   
     
     
         8 . The grinding wheel of  claim 7 , wherein said surface of said grinding wheel has an uncoated center range and an edge and wherein said recess extends from said uncoated center range to said edge of said grinding wheel. 
     
     
         9 . The grinding wheel of  claim 7 , wherein
 (a) said grinding wheel is provided with a thinner cutting edge,   (b) said cutting edge forms extends in a plane formed by the remaining portion of said grinding wheel in such a way that said grinding wheel forms said cutting edge in the range of its circumference without a step.