Deburring tool comprising a grinding belt holder

Abstract

A deburring tool includes a grinding belt holder, which is formed so as to hold a grinding belt, wherein the deburring tool has a housing, in which the grinding belt holder can alternatingly carry out a linear stroking or lifting movement. The grinding belt holder has a forming tunnel, which forms a forming duct including an input and an output for the guide-through of the grinding belt, wherein a grinding belt, which, folded in the center in the longitudinal direction of the grinding belt, escapes on the output side, can be supplied to the forming duct on the input side. The forming duct has a round cross section on its input side and a slit-like cross section on its output side.

1 . A deburring tool comprising a grinding belt holder,
 which is formed so as to hold a grinding belt, wherein the deburring tool has a housing, in which the grinding belt holder can alternatingly carry out a linear stroking or lifting movement,   wherein   the grinding belt holder has a forming tunnel, which forms a forming duct comprising an input and an output for the guide-through of the grinding belt,   wherein a grinding belt, which, folded in the center in the longitudinal direction of the grinding belt, escapes at the output of the forming duct, can be supplied to the forming duct at its input,   wherein the forming duct has a round cross section at its input and a slit-like cross section at its output.   
     
     
         2 . The deburring tool according to  claim 1 ,
 wherein   the forming tunnel has a tubular, in particular cylindrical section, which starts at the input of the forming duct and which is connected to a funnel-like section, which narrows in the direction of the output of the forming duct and which ends with a rectangular cross section at the output of the forming duct, in particular merges into this funnel-like section.   
     
     
         3 . The deburring tool according to  claim 1  or  2 ,
 wherein 
 the tubular section of the forming tunnel is formed by a tube comprising a cylindrical section. 
 
     
     
         4 . The deburring tool according to  claim 2 ,
 wherein   the funnel-like section of the forming tunnel has two half shells ( 38 ,  40 ), which can be screwed together.   
     
     
         5 . The deburring tool according to  claim 1 ,
 wherein   a bracing, which escapes at the output of the forming duct, is arranged within the forming tunnel, in particular within the funnel-like section,   wherein the bracing only partially fills the slit-like cross section at the output of the forming duct in such a way that the grinding belt places itself around the bracing.   
     
     
         6 . The deburring tool according to  claim 5 ,
 wherein   the bracing is formed as sheet metal strip with consistent thickness, in a flat or bent manner, in particular bent in the transverse direction of the bracing, with a constant or variable radius, which is aligned perpendicular to the plane of the sheet metal strip or that the bracing is formed with a thickness varying in the transverse direction of the bracing, in particular a thickness decreasing towards one of its longitudinal edges.   
     
     
         7 . The deburring tool according to  claim 1 ,
 wherein   the grinding belt holder can be driven pneumatically within the housing to carry out the alternating stroking or lifting movement,   wherein a first chamber and a second chamber, to which compressed air can be applied and which can be ventilated as well as purged, are formed in the housing,   wherein both chambers are separated from one another by means of a displaceable separating wall, which is rigidly connected to the forming tunnel, in particular its tubular section.   
     
     
         8 . The deburring tool according to  claim 1 ,
 wherein   the grinding belt holder can be driven electromagnetically within the housing to carry out an alternating stroking or lifting movement, wherein the housing has a magnetic coil, and a part of the grinding belt holder, in particular the forming tunnel, forms the magnetic armature.   
     
     
         9 . The deburring tool according to  claim 1 ,
 further comprising   a machine housing, which also accommodates a grinding belt, which is rolled up to form a grinding belt roll, wherein the grinding belt can be supplied to the input of the forming duct, in particular guided via a deflection roller.   
     
     
         10 . The deburring tool according to  claim 1 ,
 further comprising   a clamping means for clamping, removing, and pressing together the grinding belt and/or a cut-off means, which has a cutting tool for cutting off the grinding belt.   
     
     
         11 . A deburring machine comprising a deburring tool according to  claim 1 ,
 further comprising   a multiaxially controlled robot arm or movable axes of a portal machine or movable axes of a CNC milling machine, at which the deburring tool is arranged.   
     
     
         12 . The deburring machine according to  claim 11 ,
 further comprising   a clamping means, which is arranged outside of the deburring tool, for clamping, removing, and pressing together the grinding belt, and/or a cut-off means, which is arranged outside of the deburring tool and which has a cutting tool for cutting off the grinding belt.