Machining apparatus using rotary grinder

Abstract

According to one embodiment, a machining apparatus includes a disk-like grinder, and a nozzle for discharging a cutting fluid toward the grinder. The grinder cuts or grooves a workpiece by rotating. The grinder is provided with a cutting portion at a periphery of the grinder. The nozzle is provided to face the cutting portion in a radial direction of the grinder and arranged adjustably in a width direction of the cutting portion. The nozzle has a rectangular or elliptic cross-section shape in which a dimension in a width direction of the grinder is larger than a dimension in a peripheral direction of the grinder.

1 . A machining apparatus, comprising:
 a grinder that is formed in a disk-like shape and cuts or grooves a workpiece by rotating, the grinder provided with a cutting portion at a periphery thereof; and   a nozzle that is provided to face the cutting portion in a radial direction of the grinder and arranged adjustably in a width direction of the cutting portion, and discharges cutting fluid toward the grinder, the nozzle having a rectangular cross-section shape in which a dimension in a width direction of the grinder is larger than a dimension in a peripheral direction of the grinder.   
     
     
         2 . A machining apparatus, comprising:
 a grinder that is formed in a disk-like shape and cuts or grooves a workpiece by rotating, the grinder being provided with a cutting portion at a periphery thereof and   a nozzle that is provided to face the cutting portion in a radial direction of the grinder and arranged adjustably in a width direction of the cutting portion, and discharges cutting fluid toward the grinder, the nozzle having an elliptic cross-section shape in which a dimension in a width direction of the grinder is larger than a dimension in a peripheral direction of the grinder.   
     
     
         3 . The machining apparatus of  claim 1 , further comprising:
 a memory device for storing a position of the nozzle;   a detector for detecting a relative position between the grinder and the nozzle; and   an actuator for moving the nozzle.   
     
     
         4 . The machining apparatus of  claim 2 , further comprising:
 a memory device for storing a position of the nozzle;   a detector for detecting a relative position between the grinder and the nozzle; and   an actuator for moving the nozzle.   
     
     
         5 . The machining apparatus of  claim 1 , further comprising:
 a plurality of flow-straightening plates arranged inside the nozzle in a longitudinal direction of a cross-section of the nozzle, the flow-straightening plates for straightening flow of the cutting fluid discharged from the nozzle.   
     
     
         6 . The machining apparatus of  claim 2 , further comprising:
 a plurality of flow-straightening plates arranged inside the nozzle in a longitudinal direction of a cross-section of the nozzle, the flow-straightening plates for straightening flow of the cutting fluid discharged from the nozzle.   
     
     
         7 . The machining apparatus of  claim 3 , further comprising:
 a plurality of flow-straightening plates arranged inside the nozzle in a longitudinal direction of a cross-section of the nozzle, the flow-straightening plates for straightening flow of the cutting fluid discharged from the nozzle.   
     
     
         8 . The machining apparatus of  claim 4 , further comprising:
 a plurality of flow-straightening plates arranged inside the nozzle in a longitudinal direction of a cross-section of the nozzle, the flow-straightening plates for straightening flow of the cutting fluid discharged from the nozzle.   
     
     
         9 . The machining apparatus of  claim 5 , further comprising:
 a disturbed flow restrainer formed in a streamlined shape provided at an end portion of at least one of the flow-straightening plates in an opening of the nozzle in a flowing direction of the cutting fluid, the disturbed flow restrainer for restraining disturbed flow of the cutting fluid discharged from the nozzle.   
     
     
         10 . The machining apparatus of  claim 6 , further comprising:
 a disturbed flow restrainer formed in a streamlined shape provided at an end portion of at least one of the flow-straightening plates in an opening of the nozzle in a flowing direction of the cutting fluid, the disturbed flow restrainer for restraining disturbed flow of the cutting fluid discharged from the nozzle.   
     
     
         11 . The machining apparatus of  claim 7 , further comprising:
 a disturbed flow restrainer formed in a streamlined shape provided at an end portion of at least one of the flow-straightening plates in an opening of the nozzle in a flowing direction of the cutting fluid, the disturbed flow restrainer for restraining disturbed flow of the cutting fluid discharged from the nozzle.   
     
     
         12 . The machining apparatus of  claim 8 , further comprising:
 a disturbed flow restrainer formed in a streamlined shape provided at an end portion of at least one of the flow-straightening plates in an opening of the nozzle in a flowing direction of the cutting fluid, the disturbed flow restrainer for restraining disturbed flow of the cutting fluid discharged from the nozzle.