Processing device and processing method

Abstract

The present invention relates to a processing device which includes: a grindstone in which abrasive grains are dispersed in a binder containing a thermoplastic resin; and a temperature control mechanism that adjusts a temperature of a contact surface between the grindstone and a processing object according to an aspect of processing.

What is claimed is: 
     
         1 . A processing device comprising: 
 a grindstone in which abrasive grains are dispersed in a binder containing a thermoplastic resin; and   a temperature control mechanism that adjusts a temperature of a contact surface between the grindstone and a processing object according to an aspect of processing.   
     
     
         2 . The processing device according to  claim 1 , wherein 
       the temperature control mechanism raises the temperature of the contact surface higher during finish processing than during rough processing. 
     
     
         3 . The processing device according to  claim 1 , wherein 
       the temperature control mechanism includes 
       a high temperature container that accommodates a fluid, 
       a low temperature container that accommodates a fluid having a temperature lower than a temperature of the fluid accommodated in the high temperature container, and 
       a selective supply path that selectively supplies the fluids accommodated in the high temperature container and the low temperature container to the contact surface. 
     
     
         4 . The processing device according to  claim 3 , wherein 
       the selective supply path includes an opening and closing valve inserted in a flow path connected to the high temperature container, an opening and closing valve inserted in a flow path connected to the low temperature container, and a flow path where the flow path connected to the high temperature container and the flow path connected to the low temperature container merge. 
     
     
         5 . The processing device according to  claim 2 , wherein 
       the temperature control mechanism includes 
       a container that accommodates a fluid, 
       a supply path that supplies the fluid accommodated in the container to the contact surface, and 
       a heating device that heats the fluid flowing through the supply path. 
     
     
         6 . The processing device according to  claim 5 , wherein 
       the heating device is operated when the finish processing is performed, and the fluid heated by the heating device is supplied to the contact surface between the grindstone and the processing object. 
     
     
         7 . The processing device according to  claim 1 , further comprising: 
 a grindstone flange; and   a grindstone shaft.   
     
     
         8 . The processing device according to  claim 7 , wherein 
       the grindstone flange has a disc shape, and a plurality of columnar grindstones are attached to a lower surface of the grindstone flange. 
     
     
         9 . The processing device according to  claim 8 , wherein 
       the grindstones are disposed at equal intervals in a circumferential direction inside an outer peripheral line of the lower surface of the grindstone flange. 
     
     
         10 . The processing device according to  claim 8 , wherein 
       the grindstone flange includes a lower disc-shaped member and an upper disc-shaped member. 
     
     
         11 . The processing device according to  claim 10 , wherein 
       the grindstone shaft is fixed to a center portion of the upper disc-shaped member. 
     
     
         12 . The processing device according to  claim 11 , wherein 
       a flow path extending in an axial direction is formed in the grindstone shaft. 
     
     
         13 . A processing method of processing a processing object using a grindstone in which abrasive grains are dispersed in a binder containing a thermoplastic resin, the method comprising: 
 roughly grinding a surface of the processing object with the grindstone; and   thereafter, raising a temperature of a contact surface between the grindstone and the processing object to perform finish processing.   
     
     
         14 . A processing device comprising: 
 a grindstone in which abrasive grains are dispersed in a binder containing a thermoplastic resin; and   a temperature control mechanism that adjusts a temperature of the grindstone according to an aspect of processing.