Title:
DOUBLE-ENDED FLAT GRINDING GRINDSTONE AND DOUBLE-ENDED FLAT GRINDING METHOD
Document Type and Number:
Japanese Patent JP2016150414
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a double-ended flat grinding technology capable of preferably coping with grinding of both faces of a workpiece having a large margin in double-ended flat grinding of a through feed system.SOLUTION: Grinding grindstones 1, 2 are formed into disc grindstones formed by a concentric stack of three layers: a cylindrical rough grinding grindstone layer 10; a precise grinding grindstone layer 11; and a guide grindstone layer 12, and flat circular grindstone faces 1a, 2a of the grindstone part 7 of these disc grindstones 1, 2 comprise three grinding regions consisting of an annular rough grinding region A, a precise grinding region B and a guide region C concentrically arranged in sequential continuity from the outer diameter side, thereby enabling preferable coping with simultaneous grinding of both faces of a workpiece W having a large margin, suppressing grinding wear to elongate grindstone lifetime, and obtaining a desired grinding precision (in particular, parallelism and flatness) by a single grinding processing with a high grinding efficiency.SELECTED DRAWING: Figure 1
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Inventors:
ASA KOJI
Application Number:
JP2015029347A
Publication Date:
August 22, 2016
Filing Date:
February 18, 2015
Export Citation:
Assignee:
KOYO MACHINE IND CO LTD
International Classes:
B24D7/14; B24B7/17; B24B41/06
Domestic Patent References:
| JPH09216164A | 1997-08-19 | |||
| JPS49117593U | 1974-10-08 | |||
| JPS6288579A | 1987-04-23 |
Foreign References:
| US3299579A | 1967-01-24 |
Attorney, Agent or Firm:
Shogo Sano
Kiyoshi Samukawa
Kiyoshi Samukawa