Title:
GRINDING DEVICE
Document Type and Number:
Japanese Patent JP2023077681
Kind Code:
A
Abstract:
To provide a grinding device which is used by mounting a grinding wheel at a tip of a spindle and facilitates exchange of the grinding wheel.SOLUTION: A grinding device fastens a grinding wheel onto a mount disk 6 connected to the tip of a spindle 30 by the use of a bolt 64. The mount disk 6 includes at least three internal threaded holes 62 which are penetrated through upper and lower faces and are arranged circumferentially at regular intervals, and a protruded part 61 which is protruded from a mounting face 60. The bolt 64 includes an external thread portion 641 and a neck part 642 at a tip of the external thread portion 641, and an engagement part 643 projecting out from the neck part 642. The grinding wheel includes: an annular aperture 71 which is annularly formed on a face 70 to be mounted of an annular base 7; an annular groove 72 which is connected to the annular aperture 71, has a width larger than an annular aperture, and is annularly formed within the annular base 7; at least three insertion holes which are arranged in the annular aperture 71 and each of which allows the engagement part 643 to be inserted into the annular groove 72; and a protruded part insertion hole 75 into which the protruded part 61 can be inserted.SELECTED DRAWING: Figure 3
Inventors:
GENOEN JIRO
Application Number:
JP2021191047A
Publication Date:
June 06, 2023
Filing Date:
November 25, 2021
Export Citation:
Assignee:
DISCO ABRASIVE SYSTEMS LTD
International Classes:
B24B7/04; B24B45/00; H01L21/304
Attorney, Agent or Firm:
Patent Attorney Corporation Tokyo Alpa Patent Office