Tool for machining surfaces, edge areas and contours

Abstract

The tool according to the invention has a variable loading of working means ( 3 - 6 ). The total set of working means ( 3 - 6 ) is divided into subsets, which, with respect to the direction of rotation ( 18 ), have different working angles ( 15, 16, 17 ). By changing the height ( 35 ) of subregions ( 23 - 28 ) of the base plate ( 1 ) of the tool, the free length of the working means ( 3 - 6 ) can also be varied. A single tool can be built, which combines several working functions and working properties in one tool. (FIG. 2 )

1 . Tool for working surfaces, edge areas and contours with a base plate ( 1 ) rotating about a tool axis ( 2 ), a multiplicity of flexible working means ( 3 - 6 ), which are directed against a workpiece surface and are fastened on the base plate ( 1 ), these working means ( 3 - 6 ) being formed in the shape of a rod and disposed at a spacing from each other, and the longitudinal axes ( 7 - 10 ) of these working means ( 3 - 6 ) forming a predetermined working angle ( 15 ,  16 ,  17 ) with an imaginary axis ( 12 - 14 ) at right angles to the front face ( 11 ) of the base plate ( 1 ), characterized in that the working angles ( 15 ,  16 ,  17 ) of the working means longitudinal axes ( 7 - 10 ), measured in the direction ( 18 ) of the rotational movement, are defined between +60° and −60° and therein a positive working angle is open in the forward direction in the direction of rotation ( 18 ) and a negative working angle is open toward the back against the direction of rotation ( 18 ), the multiplicity of the working means ( 3 - 6 ) are divided into subsets and in each subset the longitudinal axes ( 7 - 10 ) of the associated subset of working means ( 3 - 6 ) have a working angle ( 15 ,  16 ,  17 ) which differs from the working angle ( 15 ,  16 ,  17 ) of the other subsets, wherein at least one first subset of working means ( 3 ,  6 ), and therewith their longitudinal axes ( 7 ,  10 ) is disposed at a neutral working angle ( 17 ) of 0° and at least one second subset of working means ( 5 ), and therewith their longitudinal axes ( 9 ), is disposed at a positive working angle ( 15 ) of up to +60°.  
   
   
       2 . Tool for working surfaces, edge areas and contours as claimed in  claim 1 , characterized in that at least a third subset of working means ( 4 ) is fastened on the base plate ( 1 ), wherein their longitudinal axes ( 8 ) are disposed at a negative working angle ( 16 ) of up to −60°.  
   
   
       3 . Tool for working surfaces, edge areas and contours as claimed in  claim 1 , characterized in that each of the subsets of working means ( 3 - 6 ) with different working angles ( 15 ,  16 ,  17 ) is disposed in a certain region of the base plate.  
   
   
       4 . Tool for working surfaces, edge areas and contours as claimed in  claim 1 , characterized in that the base plate ( 1 ) is divided into several regions in the form of concentric rings ( 19 - 22 ) and with each of the ring regions ( 19 - 22 ) is associated one of the subsets of working means ( 3 - 6 ) with a certain working angle ( 15 ,  16 ,  17 ).  
   
   
       5 . Tool for working surfaces, edge areas and contours as claimed in  claim 1 , characterized in that the base plate ( 1 ) is divided into several regions in the form of circle sectors ( 23 - 26 ) and with each of the circle sectors ( 23 - 26 ) is associated one of the subsets of working means ( 3 - 6 ) with a certain working angle ( 15 ,  16 ,  17 ).  
   
   
       6 . Tool for working surfaces, edge areas and contours as claimed in  claim 1 , characterized in that the base plate ( 1 ;  1 ′) is assembled of several structural parts ( 19 - 22  or  23 - 26 , respectively), these structural parts ( 19 - 22 ;  23 - 26 ) are connected with one another directly or by means of a mounting plate ( 27 ) form-fittingly and/or force-fittingly and these structural parts have the form of an annulus ( 19 - 22 ) or of a circle sector ( 23 - 26 ).  
   
   
       7 . Tool for working surfaces, edge areas and contours as claimed in  claim 6 , characterized in that the individual structural parts of the base plate ( 1 ;  1 ′) are each equipped with working means ( 3 - 6 ), which are disposed at a predetermined working angle ( 15 ,  16 ,  17 ) and therein at least two structural parts ( 19 - 22 ;  23 - 26 ) have working means ( 3 - 6 ) with different working angles ( 15 ,  16 ,  17 ).  
   
   
       8 . Tool for working surfaces, edge areas and contours as claimed in  claim 6 , characterized in that the individual structural parts ( 19 - 22 ;  23 - 26 ) have at least partially a different thickness in the direction of the tool axis ( 2 ).  
   
   
       9 . Tool for working surfaces, edge areas and contours as claimed in  claim 1 , characterized in that each of the working means ( 3 - 6 ) is comprised of a bristle tuft with a multiplicity of parallel bristles ( 28 ).  
   
   
       10 . Tool for working surfaces, edge areas and contours as claimed in  claim 1 , characterized in that the working means ( 3 - 6 ) of the individual subsets are comprised of diverse materials.  
   
   
       11 . Tool for working surfaces, edge areas and contours as claimed in  claim 1 , characterized in that the subsets of working means ( 3 - 6 ) are each equipped with grinding means of different grain size.  
   
   
       12 . Tool for working surfaces, edge areas and contours as claimed in  claim 1 , characterized in that each of the subsets of working means ( 3 - 6 ) has different dimensions.