US 12,447,570 B2
Flange
Masanori Misaizu, Tokyo (JP)
Assigned to DISCO CORPORATION, Tokyo (JP)
Filed by DISCO CORPORATION, Tokyo (JP)
Filed on Feb. 22, 2023, as Appl. No. 18/172,591.
Claims priority of application No. 2022-028461 (JP), filed on Feb. 25, 2022.
Prior Publication US 2023/0271285 A1, Aug. 31, 2023
Int. Cl. B23Q 11/10 (2006.01); B23Q 3/12 (2006.01)
CPC B23Q 3/12 (2013.01) [B23Q 11/10 (2013.01)] 1 Claim
OG exemplary drawing
 
1. A flange for fixing a cutting blade to a spindle in a cutting apparatus that includes the spindle with the cutting blade fixed to a tip thereof, the cutting blade having an annular cutting edge, a holding unit which holds a workpiece to be cut by the cutting blade fixed to the tip of the spindle, and a cutting liquid supply nozzle which supplies a cutting liquid to the cutting blade during cutting of the workpiece held by the holding unit, the flange comprising:
a front flange and a rear flange that clamp the cutting blade therebetween,
wherein the front flange has a first outer circumferential part smaller in diameter than the cutting blade and a second outer circumferential part smaller in diameter than the first outer circumferential part, a clamping surface making contact with a front surface of the cutting blade is formed at an end face of the second outer circumferential part on a side opposite to the first outer circumferential part, and a diameter of an outer circumferential surface of the second outer circumferential part is configured to be same in an axial direction of the front flange or is configured to be enlarged as a distance from the cutting blade increases, and
the rear flange has a first outer circumferential part smaller in diameter than the cutting blade and a second outer circumferential part smaller in diameter than the first outer circumferential part, a clamping surface making contact with a rear surface of the cutting blade is formed at an end face of the second outer circumferential part on a side opposite to the first outer circumferential part, and a diameter of an outer circumferential surface of the second outer circumferential part is configured to be same in an axial direction of the rear flange or is configured to be enlarged as a distance from the cutting blade increases,
whereby, at a time when the cutting blade is clamped between the front flange and the rear flange, recessed spaces are formed on both sides of the cutting blade along a circumferential direction of the front flange and the rear flange, and the cutting liquid supplied from the cutting liquid supply nozzle to the cutting blade is splashed back in the recessed spaces to be supplied to a cutting region of an upper surface of the workpiece.