Method for providing an edge preparation on a cutting edge of a tool and a control and a processing machine for carrying out the method

Abstract

A method for providing an edge preparation on a cutting edge of a tool by means of an edge processing operation includes clamping the tool in a processing machine for providing the edge preparation, recording as a reference value the position of the cutting edge to be processed by means of a sensor arranged on the processing machine, carrying out an edge processing operation by means of a preparation tool, recording the position of the cutting edge again by means of the sensor arranged on the processing machine and storing the position as an actual value, monitoring the edge processing operation on the basis of a comparison between the reference value and the actual value, and comparing the actual value with a desired value for material removed on the cutting edge.

1 . A method for providing an edge preparation on a cutting edge of a tool by means of an edge processing operation, the method comprising:
 clamping the tool in a processing machine for providing the edge preparation;   recording as a reference value the position of the cutting edge to be processed by means of a sensor arranged on the processing machine;   carrying out an edge processing operation by means of a preparation tool;   recording the position of the cutting edge again by means of the sensor arranged on the processing machine and storing the position as an actual value;   monitoring the edge processing operation on the basis of a comparison between the reference value and the actual value; and   comparing the actual value with a desired value for material removed on the cutting edge.   
     
     
         2 . The method of  claim 1 , wherein a plurality of tools are successively processed on the processing machine and wherein wear of the preparation tool is deduced on the basis of the progression of the difference between actual value and reference value. 
     
     
         3 . The method of  claim 2 , wherein when wear of the preparation tool is detected, a desired control value for the preparation tool is corrected in a control unit of the processing machine. 
     
     
         4 . The method of  claim 1 , wherein desired value for the material removal is within the range of 3 μm to 200 μm. 
     
     
         5 . The method of  claim 1 , wherein the sensor is a probe. 
     
     
         6 . The method of  claim 1 , wherein the preparation tool comprises a brush. 
     
     
         7 . The method of  claim 1 , wherein the processing machine comprises a 5-axis CNC machine. 
     
     
         8 . The method of  claim 1 , wherein an edge preparation is carried out again in the event of an inadmissible deviation from the desired value. 
     
     
         9 . A processing machine for carrying out the method of  claim 1 , the processing machine comprising:
 a clamping unit for clamping the tool in place;   a preparation tool for carrying out the edge processing operation;   a sensor for recording the position of the cutting edge; and   a control unit structured to monitor the edge processing operation on the basis of a comparison between the reference value and the actual value.