Device for measuring the feed motion of a finishing belt

Abstract

A device for measuring the feed motion of a finishing belt includes a movable contact section for contacting the finishing belt, wherein a movement of the finishing belt can be transferred to the contact section, and a sensor device including a sensor and a reference section cooperating with the sensor, wherein the reference section or the sensor is motionally coupled with the contact section.

1 . A device for measuring a feed motion of a finishing belt, comprising:
 a movable contact section contacting the finishing belt, wherein a movement of the finishing belt is transferred to the contact section, and   a sensor device comprising a sensor and a reference section cooperating with the sensor, wherein the reference section or the sensor is motionally coupled with the contact section.   
     
     
         2 . The device of  claim 2 , wherein the sensor device generates continuously changing sensor signals. 
     
     
         3 . The device of  claim 1 , wherein the sensor device is constructed as a distance measuring device or a gap measuring device. 
     
     
         4 . The device of  claim 1 , wherein the contact section and the reference section are configured to be moved synchronously relative to each other. 
     
     
         5 . The device of  claim 1 , wherein the reference section and the contact section are formed by a same component. 
     
     
         6 . The device of  claim 1 , wherein the reference section and the contact section are formed by an assembly having components which are immovable relative to each other. 
     
     
         7 . The device of  claim 1 , wherein the contact section and the reference section are constructed for rotation about a common rotation axis. 
     
     
         8 . The device of  claim 1 , wherein the contact section has a shape of a circular-cylindrical contact surface. 
     
     
         9 . The device of  claim 1 , wherein the reference section comprises a reference surface having different radii of curvature. 
     
     
         10 . The device of  claim 9 , wherein the reference surface is formed by a cam disk. 
     
     
         11 . An apparatus for finish-processing of a workpiece, comprising:
 a device for measuring a feed motion of a finishing belt, comprising:   a movable contact section contacting the finishing belt, wherein a movement of the finishing belt is transferred to the contact section, and   a sensor device comprising a sensor and a reference section cooperating with the sensor, wherein the reference section or the sensor is motionally coupled with the contact section, and   a drive device for supplying the finishing belt from a finishing belt supply to at least one workpiece processing position.   
     
     
         12 . The apparatus of  claim 11 , further comprising a signal outputting device for outputting a warning signal, which is triggered when the device for measuring the feed motion of the finishing belt generates a constant sensor signal even when the drive device is active.