US 12,330,259 B2
Combined grinding wheel for ultrasonic machining and design method therefor
Renke Kang, Liaoning (CN); Zhigang Dong, Liaoning (CN); Yidan Wang, Liaoning (CN); Xianglong Zhu, Liaoning (CN); Shang Gao, Liaoning (CN); and Yan Bao, Liaoning (CN)
Assigned to DALIAN UNIVERSITY OF TECHNOLOGY, Liaoning (CN)
Appl. No. 17/597,678
Filed by DALIAN UNIVERSITY OF TECHNOLOGY, Liaoning (CN)
PCT Filed Aug. 29, 2019, PCT No. PCT/CN2019/103151
§ 371(c)(1), (2) Date Apr. 22, 2022,
PCT Pub. No. WO2021/007924, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 201910643619.7 (CN), filed on Jul. 17, 2019.
Prior Publication US 2022/0324076 A1, Oct. 13, 2022
Int. Cl. B24B 1/04 (2006.01); B24D 7/18 (2006.01)
CPC B24B 1/04 (2013.01) [B24D 7/18 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A combined grinding wheel for ultrasonic machining, comprising:
an outer grinding ring, an upper end thereof having a center taper hole and a plurality of outer grinding ring water holes located at a circumferential outer side of the center taper hole, and a lower end thereof having an outer grinding ring cavity communicated with the center taper hole and the outer grinding ring water holes, wherein a lower end of the outer grinding ring cavity is open, and an outer wall of the outer grinding ring corresponding to the outer grinding ring cavity has a plurality of outer grinding ring chutes communicated with the outer grinding ring cavity, wherein a rabbet of the outer grinding ring chute is located at a lower end face of the outer grinding ring;
a connecting taper shank, a lower end thereof having a shank portion inserting into the outer grinding ring cavity from the center taper hole and matching a tapered surface of the center taper hole, wherein the outer wall of a tapered section of the shank portion located in the outer grinding ring cavity is in thread connection with a tapered or circular nut, and an upper end face of the nut fits with an inner wall of an upper end of the outer grinding ring cavity;
a connecting flange located outside the shank portion and fixed on the inner wall of the upper end of the outer grinding ring cavity, and having a center tapered through hole; and
an inner vibration unit having a tapered surface matching a tapered surface of the center tapered through hole and a center hole connected with the connecting taper shank by means of a screw.