Title:
SPINDLE STRUCTURE AND MACHINE TOOL
Document Type and Number:
WIPO Patent Application WO/2022/121338
Kind Code:
A1
Abstract:
A spindle structure. The spindle structure comprises a spindle core (10), a bearing structure (20), and a bearing base (30); the bearing base (30) is provided with a communication channel, the spindle core (10) is provided on the communication channel in a penetrating manner, the bearing structure (20) is provided in the communication channel, and the bearing structure (20) is sleeved on the spindle core (10); a spacer ring positioning structure (40) comprises a female spacer ring (41) and a sub-spacer ring (42), the sub-spacer ring (42) is sleeved on the spindle core (10), and an external thread is provided on the sub-spacer ring (42); the inner ring of the female spacer ring (41) is provided with an internal thread adapted to the external thread, and the female spacer ring (41) is rotatably provided on the sub-spacer ring (42) to drive the sub-spacer ring (42) to move. A driving member (50) comprises an operating section (51) and a driving section (52) connected to each other, the driving section (52) is provided with a first tooth-shaped portion (53), and the female spacer ring (41) is provided with a second tooth-shaped portion (43) adapted to the first tooth-shaped portion (53); the driving section (52) is movably provided in the communication channel of the bearing base (30) and matches the female spacer ring (41), and the operating section (51) penetrates out of the bearing base (30) and is located on the outer side of the bearing base (30). The structure can solve the technical problem in the related art that it is inconvenient to adjust the bearing pre-tightening force of the spindle structure. The present invention also relates to a machine tool comprising the spindle structure.
Inventors:
CUI ZHONG (CN)
GAO WEI (CN)
HE ZHENTAO (CN)
GENG JIQING (CN)
ZHAO ZHEN (CN)
GAO WEI (CN)
HE ZHENTAO (CN)
GENG JIQING (CN)
ZHAO ZHEN (CN)
Application Number:
PCT/CN2021/110076
Publication Date:
June 16, 2022
Filing Date:
August 02, 2021
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
F16C35/063; B23B19/02
Foreign References:
| CN112517933A | 2021-03-19 | |||
| CN110410423A | 2019-11-05 | |||
| CN203717680U | 2014-07-16 | |||
| CN201979098U | 2011-09-21 | |||
| KR20100089272A | 2010-08-12 | |||
| JPH06341431A | 1994-12-13 | |||
| JPH0835520A | 1996-02-06 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
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