Grinding machine

Abstract

A grinding machine for grinding workpieces by abrasive particles with at least one grinding unit having two parts rotatable relative to one another, is characterized in that in a container for receiving articles to be ground is located in rotary manner a disk, that on the container below the disk is provided a rotary drive for the latter and that the axes of the disk and rotary drive are aligned.

1 . Grinding machine for grinding workpieces by means of abrasive particles with at least one grinding unit having two parts rotatable relative to one another, characterized in that in a container ( 2 ) for receiving the article to be ground is placed in rotary manner a disk ( 3 ), that on the container ( 2 ) below the disk ( 3 ) is provided a rotary drive ( 11 ) for the latter and that the axes (A) of disk ( 3 ) and rotary drive ( 11 ) are aligned.  
     
     
         2 . Grinding machine according to  claim 1 , characterized in that the disk ( 3 ) is connected in bearing-free, non-rotary manner to the driven shaft ( 12 ) of the rotary drive ( 11 ).  
     
     
         3 . Grinding machine according to  claim 1  or  2 , characterized in that the disk ( 3 ) is connected by means of a coupling piece ( 15 ) to the driven shaft ( 12 ) of the rotary drive ( 11 ).  
     
     
         4 . Grinding machine according to  claim 3 , characterized in that the coupling piece has aligned bores ( 12   a,    12   b ) into which project the driven shaft ( 12 ) of the rotary drive ( 11 ) and a centring pin ( 17 ) of the disk ( 3 ).  
     
     
         5 . Grinding machine according to  claim 3  or  4 , characterized in that the coupling piece ( 15 ) and driven shaft ( 12 ) are interconnected in non-rotary manner by a radial locking screw ( 16 ).  
     
     
         6 . Grinding machine according to one of the  claims 3  to  5 , characterized in that the rotary disk ( 3 ) and coupling piece ( 15 ) are interconnected in non-rotary manner by screws ( 18 ).  
     
     
         7 . Grinding machine according to  claim 6 , characterized in that the coupling piece ( 15 ) is held in axially firm manner in the container ( 2 ) by shaft-sealing rings ( 22 ).  
     
     
         8 . Grinding machine according to one of the preceding claims, characterized in that the rotary drive ( 11 ) is held in a foot part ( 2 ″) and is firmly connected thereto by screws ( 13 ).  
     
     
         9 . Grinding machine according to  claim 8 , characterized in that the fastening screws ( 13 ) for the rotary drive ( 11 ) are oriented parallel to the axis (A).  
     
     
         10 . Grinding machine according to one of the  claims 1  to  9 , characterized by a dust-tight and/or liquid-tight passage of the drive of disk ( 3 ) through the base of container ( 2 ).