Grinding Tool

Abstract

A grinding tool, in particular a diamond cup wheel, includes at least one main body, which has at least one connection region and at least one contact region, the contact region at least substantially completely surrounding the connection region when viewed in at least one main extension plane of the main body. The grinding tool further includes a plurality of grinding elements, which are arranged on the main body. The main body delimits a plurality of suction openings which, when viewed along a circumferential direction of the main body, are each arranged between at least two grinding elements of the plurality of grinding elements.

1 . A grinding tool comprising:
 at least one main body that comprises at least one connection region and at least one contact region, which at least substantially completely surrounds the connection region as viewed in at least one plane of main extent of the main body; and   a multiplicity of grinding elements arranged on the main body,   wherein the main body delimits a multiplicity of suction extraction openings, each of which is arranged between at least two grinding elements of the multiplicity of grinding elements along a circumferential direction of the main body.   
     
     
         2 . The grinding tool as claimed in  claim 1 , wherein:
 the multiplicity of grinding elements are arranged as groups of grinding elements on the main body, and   each of the multiplicity of suction extraction openings is arranged between two groups of grinding elements as viewed along the circumferential direction of the main body.   
     
     
         3 . The grinding tool as claimed in  claim 1 , wherein a ratio of a minimum distance of the suction extraction openings from a central axis of the main body to a maximum diameter of the contact region is at least 0.05. 
     
     
         4 . The grinding tool as claimed in  claim 1 , wherein that a ratio of a maximum longitudinal extent of the suction extraction openings to a maximum diameter of the contact region is at most 0.9. 
     
     
         5 . The grinding tool as claimed in  claim 1 , wherein each of the multiplicity of suction extraction openings, as viewed in the plane of main extent of the main body has a cross-sectional area of at least 195 mm 2 . 
     
     
         6 . The grinding tool as claimed in  claim 1 , wherein the multiplicity of suction extraction openings includes at most five suction extraction openings. 
     
     
         7 . The grinding tool as claimed in  claim 1 , wherein the multiplicity of suction extraction openings are arranged in the contact region and, as viewed in the plane of main extent of the main body, extend over at least 30% of a maximum radial extent of the contact region from a side of the contact region that delimits the connection region to an outer edge of the contact region. 
     
     
         8 . The grinding tool as claimed in  claim 1 , wherein the suction extraction openings, as viewed in the plane of main extent of the main body, are arranged spaced apart from each other around a central axis over an angular range of at least 45°. 
     
     
         9 . The grinding tool as claimed in  claim 2 , wherein at least one individual group of the groups of grinding elements comprises at most five grinding elements. 
     
     
         10 . The grinding tool as claimed in  claim 2 , wherein:
 at least one individual group of the groups of grinding elements has at least one inner grinding element arranged in an inner edge region of the contact region on the main body delimiting the connection region, and   a maximum of six inner grinding elements are arranged on the main body.   
     
     
         11 . The grinding tool as claimed in  claim 2 , wherein:
 at least one individual group of the groups of grinding elements comprises at least one outer grinding element arranged in an outer edge region of the contact region on the main body, and   a maximum of six outer grinding elements are arranged on the main body.   
     
     
         12 . The grinding tool as claimed in  claim 2 , wherein:
 at least one individual group of the groups of grinding elements comprises at least two outer grinding elements and at least one inner grinding element,   the at least two outer grinding elements are arranged in an outer edge region of the contact region and the at least one inner grinding element is arranged in an inner edge region of the contact region that delimits the connection region, and   the inner grinding element, as viewed along the circumferential direction of the main body, is arranged between two outer grinding elements.   
     
     
         13 . The grinding tool as claimed in  claim 2 , wherein:
 at least one individual group of the groups of grinding elements comprises at least one radial grinding element, which is arranged in such a manner that a longitudinal axis of the radial grinding element is at least substantially parallel to a transverse axis of the main body, and   the transverse axis intersects a central axis of the main body.   
     
     
         14 . The grinding tool as claimed in  claim 1 , wherein the grinding tool is a diamond cup wheel.