Method for grinding a workpiece with a grinding tool

Abstract

The present invention relates to a method for grinding of a workpiece with a grinding tool, wherein an axis of rotation of the grinding tool is oriented perpendicular to a feed plane of the grinding tool, comprising the following steps: a) Movement of the grinding tool at a first velocity into a machining region of the workpiece, b) Establishment of contact between the grinding tool and a first entry region of the workpiece at a second velocity, c) First traverse of the grinding tool at the second velocity through the workpiece along a predefined contour located in the feed plane, d) First extraction of the grinding tool at the second velocity from a first exit region of the workpiece, e) Establishment of contact between the grinding tool and a second entry region of the workpiece at a third velocity, f) Second traverse of the grinding tool at the third velocity through the workpiece along a horizontal traverse direction located in the feed plane, g) Second extraction of the grinding tool at the third velocity from a second exit region of the workpiece.

1 . A method for grinding of a workpiece ( 1 ) with a grinding tool ( 2 ), wherein an axis of rotation ( 3 ) of the grinding tool ( 2 ) is oriented perpendicular to a feed plane ( 4 ) of the grinding tool ( 2 ), comprising the following steps:
 a) moving the grinding tool ( 2 ) at a first velocity (v 1 ) into a machining region ( 5 ) of the workpiece ( 1 ),   b) establishing contact by the grinding tool ( 2 ) with a first entry region ( 6 ) of the workpiece ( 1 ) at a second velocity (v 2 ),   c) traversing the grinding tool ( 2 ) at the second velocity (v 2 ) through the workpiece ( 1 ) along a predefined contour ( 7 ) located in the feed plane ( 4 ),   d) extracting the grinding tool ( 2 ) at the second velocity (v 2 ) from a first exit region ( 8 ) of the workpiece ( 1 ),   e) establishing contact by the grinding tool ( 2 ) with a second entry region ( 9 ) of the workpiece ( 1 ) at a third velocity (v 3 ),   f) traversing the grinding tool ( 2 ) at the third velocity (v 3 ) through the workpiece ( 1 ) along a horizontal direction of traverse ( 10 ) located in the feed plane ( 4 ), and   g) extracting the grinding tool ( 2 ) from a second exit region ( 11 ) of the workpiece ( 1 ) at the third velocity (v 3 ).   
     
     
         2 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the grinding tool ( 2 ) traverses in a total vertical engagement setting (z) at the third velocity (v 3 ). 
     
     
         3 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 2 , wherein the first entry region ( 6 ) is oriented vertically offset to the first exit region ( 8 ) in the feed plane ( 4 ), wherein the first entry region ( 6 ) and the first exit region ( 8 ) are vertically offset relative to each other by less than, or the same as, the total vertical engagement setting (z). 
     
     
         4 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the first entry region ( 6 ) extends over an essentially first vertical outer surface ( 12 ) of the workpiece ( 1 ), and over an essentially horizontal outer surface ( 13 ) of the workpiece ( 1 ) that is adjacent to the first vertical outer surface ( 12 ), wherein the first exit region ( 8 ) extends over an essentially second vertical outer surface ( 14 ) of the workpiece ( 1 ), wherein the second vertical outer surface ( 14 ) is located opposite the first vertical outer surface ( 12 ). 
     
     
         5 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 4 , wherein the first exit region ( 8 ) extends over the second essentially vertical outer surface ( 14 ) and the second exit region ( 11 ) extends over the first essentially vertical outer surface ( 12 ), wherein a greater vertical offset is formed between the first entry region ( 6 ) and the second exit region ( 11 ) than between the first exit region ( 8 ) and the second entry region ( 9 ). 
     
     
         6 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the predefined contour ( 7 ) has an essentially linear, parabolic, logarithmic, exponential, or wave-like shape, or a superposition of at least two of the aforementioned shapes. 
     
     
         7 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the predefined contour ( 7 ) and the horizontal traverse direction ( 10 ) subtend an angle (φ) of 1° to 45°, preferably of 15° to 30°, particularly preferably of 20° to 25°. 
     
     
         8 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the axis of rotation ( 3 ) lies behind or within the first entry region ( 6 ) in the feed plane ( 4 ) in the course of the establishment of contact between the grinding tool ( 2 ) and the first entry region ( 6 ), along the horizontal direction of traverse ( 10 ). 
     
     
         9 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the axis of rotation ( 3 ) lies in front of, or within, the second entry region ( 9 ) in the feed plane ( 4 ) in the course of the first extraction, and/or the establishment of contact with the second entry region ( 9 ) along the horizontal direction of traverse ( 10 ). 
     
     
         10 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the first velocity (v 1 ) is higher than the second and third velocities (v 2 , v 3 ) respectively, wherein the second and third velocities (v 2 , v 3 ) differ from one another, wherein the second and third velocities (v 2 , v 3 ) are respectively constant in the course of an engagement of the grinding tool ( 2 ) with the workpiece. 
     
     
         11 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the workpiece ( 1 ) is formed by a temporary workpiece ( 15 ) of a plurality of mutually parallel bandsaw blades ( 16 ), wherein a plurality of teeth of the temporary workpiece ( 15 ) are simultaneously ground by the grinding tool ( 2 ). 
     
     
         12 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the workpiece ( 1 ) is held down and clamped before, and/or in the course of, movement of the grinding tool ( 2 ). 
     
     
         13 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the workpiece ( 1 ) is displaced parallel to the axis of rotation ( 3 ) after the second extraction, and at least the steps b) to f) are repeated. 
     
     
         14 . The method for grinding of a workpiece ( 1 ) in accordance with  claim 1 , wherein the workpiece ( 1 ) is released from its clamped state after the second extraction, is displaced and clamped once again, and at least the steps b) to f) are repeated.