Title:
GRINDSTONE COVER DEVICE FOR INTERNAL GRINDING MACHINE
Document Type and Number:
Japanese Patent JP2021045799
Kind Code:
A
Abstract:
To provide a grindstone cover device for an internal grinding machine that can prevent the grindstone from scattering due to breakage during setup change.SOLUTION: A grindstone cover device 9 comprises: a spindle stock 2 that supports a spindle 3 that holds a work-piece W; and a fixed cover 10 arranged to face the spindle stock 2 so as to partition between the spindle stock and an inner surface grinding shaft 5 that rotates a grindstone 6 for grinding an inner surface of the work-piece W; a movable cover 11 provided on the fixed cover 10 so as to enable opening and closing an opening that allows the inner surface grinding shaft 5 to advance and retreat; and a moving device 12 for moving the movable cover 11 between an open position and a closed position.SELECTED DRAWING: Figure 1
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Inventors:
KAO TAKUYA
Application Number:
JP2019168220A
Publication Date:
March 25, 2021
Filing Date:
September 17, 2019
Export Citation:
Assignee:
OKUMA MACHINERY WORKS LTD
International Classes:
B24B55/04; B24B5/10
Domestic Patent References:
| JP2007276032A | 2007-10-25 | |||
| JPS6292143U | 1987-06-12 | |||
| JPS57189754U | 1982-12-01 | |||
| JP2012076212A | 2012-04-19 | |||
| JP6481067B1 | 2019-03-13 | |||
| JP5909148B2 | 2016-04-26 |
Attorney, Agent or Firm:
Matsumura Naoto
Akira Watanabe
Einosuke Kishimoto
Akira Watanabe
Einosuke Kishimoto