Title:
高速且つ高効率のドリルビット
Document Type and Number:
Japanese Patent JP7412042
Kind Code:
B2
Abstract:
The present invention relates to a high-speed and high-efficiency drill bit, which includes a work ring and a plurality of discharge ports. The work ring is a cylindrical structure, and the plurality of discharge ports is distributed annularly at the bottom of a sidewall of the work ring to discharge scraps when the work ring is rotated for machining. A symmetrical centerline of two side edges at the bottom of each discharge port or a centerline of an included angle between the two side edges at the bottom of the discharge port does not pass through a circle center of a bottom surface of the work ring. The high-speed and high-efficiency drill bit of the present invention has the following beneficial effects: while rotating with the work ring in the discharge ports, the scraps may be subject to a mechanical pushing force from the discharge ports towards an outer side of the work ring, which allows to discharge the scraps more easily out of the discharge ports under the mechanical pushing force, thereby ensuring the drill bit to work at a high speed and high efficiency.
Inventors:
Song Jing Xin
▲龍▼慧玲
梁安▲寧▼
Guo Xin Ling
Kano Isamu
▲劉▼人杰
Wang Zhiyong
▲龍▼慧玲
梁安▲寧▼
Guo Xin Ling
Kano Isamu
▲劉▼人杰
Wang Zhiyong
Application Number:
JP2022538692A
Publication Date:
January 12, 2024
Filing Date:
December 17, 2020
Export Citation:
Assignee:
GUILIN CHAMPION UNION DIAMOND CO., LTD
International Classes:
B28D1/14; B23B51/04; B28D7/02; C03B33/10
Domestic Patent References:
| JP63166361U | ||||
| JP2010247378A |
Foreign References:
| US5316416 | ||||
| WO1990015683A1 | ||||
| WO1986000253A1 | ||||
| CN201052641Y | ||||
| CN209239135U | ||||
| CN203281946U | ||||
| DE4326000A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Hiroe Associates Patent Office