FLANGE MECHANISM AND CUTTING APPARATUS

摘要

A cutting blade is held between a first flange and a second flange to define an annular cutting water supply chamber between the two flanges. The first flange has a plurality of cutting water supply holes, a first holding surface for holding one side surface of the cutting blade, and a plurality of first supply grooves formed on the first holding surface so as to extend in the radial direction of the first flange. The second flange has a second holding surface for holding the other side surface of the cutting blade and a plurality of second supply grooves extend in the radial direction of the second flange. Cutting water is supplied from the cutting water supply holes to the cutting water supply chamber and then discharged from the first supply grooves and the second supply grooves by centrifugal force due to rotation of a spindle.

主权项

1. A flange mechanism for holding an annular cutting blade for cutting a workpiece, said flange mechanism being adapted to be fixed to the front end of a rotatable spindle, said flange mechanism comprising:
a first flange for holding one side surface of said cutting blade; and a second flange for holding the other side surface of said cutting blade, whereby said cutting blade is sandwiched between said first flange and said second flange; said first flange having:
a first mount hole adapted to engage said spindle;a circular cylindrical hub portion formed around said first mount hole;a plurality of cutting water supply holes formed radially outside of said hub portion about the axis of said first flange;a first holding surface annularly formed radially outside of said cutting water supply holes about the axis of said first flange, said first holding surface being adapted to abut against one side surface of said cutting blade; anda plurality of first supply grooves formed on said first holding surface so as to extend in the radial direction of said first flange; said second flange having:
a second mount hole adapted to engage said hub portion of said first flange;a second holding surface annularly formed radially outside of said second mount hole about the axis of said second flange, said second holding surface being adapted to abut against the other side surface of said cutting blade, whereby said cutting blade is sandwiched between said first holding surface and said second holding surface; anda plurality of second supply grooves formed on said second holding surface so as to extend in the radial direction of said second flange; an annular cutting water supply chamber being defined between said first flange and said second flange so as to communicate with said cutting water supply holes, said first supply grooves, and said second supply grooves in a condition where said cutting blade is held between said first flange and said second flange; a cutting water being supplied from said cutting water supply holes to said cutting water supply chamber and then discharged from said first supply grooves and said second supply grooves by a centrifugal force due to the rotation of said spindle.