Title:
スピンドルユニット
Document Type and Number:
Japanese Patent JP7273610
Kind Code:
B2
Abstract:
To prevent, in a spindle unit, processing water (processing waste liquid) containing processed waste from entering a space between a spindle and a housing.SOLUTION: A spindle unit 62 comprises: a spindle 621 on one-end side of which a mount 65 for mounting a processing tool is mounted; a housing 622 exposing one-end side of the spindle 621 and rotatably supporting it; a spindle rotating and driving source 623; and a cylindrical seal portion 68 surrounding the exposed spindle external surface and coupled to one end of the housing 622 between the mount 65 and the one end of the housing 622 not in contact with the mount 65 mounted on the one-end side of the spindle 621. The seal portion 68 comprises an annular inner recess 681 formed in a surface opposite an external surface of the mount 65 mounted on the one-end side of the spindle 621 or a rear surface of the mount 65. The inner recess 681 functions as a labyrinth seal. Processing waste liquid containing processed waste resulting from processing a work piece is prevented from entering the housing 622 from a gap between the mount 65 and the seal portion 68.SELECTED DRAWING: Figure 2
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Inventors:
Kawakami Gouji
Application Number:
JP2019088938A
Publication Date:
May 15, 2023
Filing Date:
May 09, 2019
Export Citation:
Assignee:
Disco Co., Ltd.
International Classes:
B24B55/06; B23B19/02; B23Q11/00; B24B41/04
Domestic Patent References:
| JP2005059151A | ||||
| JP2000153426A | ||||
| JP2001246556A | ||||
| JP2016087733A |
Attorney, Agent or Firm:
Patent Attorney Corporation Tokyo Alpa Patent Office
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