CN203459714U - Drill bit with protecting cover - Google Patents
Drill bit with protecting cover Download PDFInfo
- Publication number
- CN203459714U CN203459714U CN201320466174.8U CN201320466174U CN203459714U CN 203459714 U CN203459714 U CN 203459714U CN 201320466174 U CN201320466174 U CN 201320466174U CN 203459714 U CN203459714 U CN 203459714U
- Authority
- CN
- China
- Prior art keywords
- drill bit
- protective cover
- protecting cover
- shank
- drill body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a drill bit with a protecting cover. The drill bit comprises a drill bit body, and the drill bit body comprises a handle part for clamping, a guiding part and a cutting part. The surface of the outer side of the guiding part is provided with a plurality of spiral fragment accommodating grooves, the protecting cover is installed at the middle of the handle part of the drill bit body and is in a semicircular sphere shape or an umbrella shape, and the center position of the protecting cover is rotatably connected with the handle part of the drill bit body. The protecting cover is arranged on the drill bit body, fragments can be prevented from scattering around and injuring workers and can also be collected simultaneously particularly when holes are drilled on the top surface, shaking of the drill bit can be avoided due to the arrangement of the protecting cover, drilling deviation is avoided, and drilling precision is improved.
Description
Technical field
The utility model relates to machine tools, particularly a kind of drill bit with protective cover.
Background technology
Drill bit is in the process of using, because the high-speed rotary change of team produces a lot of chips, although chip is most of, through chip pocket, derive, but still having part flies out, particularly during the hole on boring end face, though chip is derived through chip pocket, still can down drop, be scattered everywhere, can cause certain injury to workman.
Utility model content
The utility model technical issues that need to address be drill bit when High Rotation Speed, chip can splash, and can be scattered everywhere, hurts workman.
For solving the problems of the technologies described above; the utility model provides a kind of drill bit with protective cover; comprise drill body; described drill body comprises shank, guide part and the cutting portion for clamping; on the outer surface of described guide part, be provided with a plurality of spiral chip pockets; shank centre position at described drill body is provided with protective cover, and described protective cover is the spherical or umbrella of semicircle, and the shank of its center and described drill body is rotationally connected.Drill bit with protective cover of the present utility model; on drill body, be provided with protective cover; can prevent that chip from flashing; hurt workman; also can collect chip, when particularly holing on end face, and arranging of protective cover can also prevent that drill bit from rocking simultaneously; prevent from training off, improve the precision of boring.
As optimal technical scheme of the present utility model, the shank of described protective cover and described drill body is threaded connection, and is evenly provided with three fulcrums on the base of described protective cover.Three fulcrums be arranged so that the more stable support of protective cover in the plane, and can not rock.
Wherein, the length of described shank and the length ratio of described guide part are 1:1～0.8:1.The length of shank is identical with the length of guide part or smaller, can effectively utilize the length of guide part, prevents the degree of depth of protective cover impact boring.
Drill bit with protective cover of the present utility model, simple in structure, very practical, can prevent from that chip from flashing to hurt sb.'s feelings, can also prevent that the unexpected drill bit fractureing from hurting sb.'s feelings crucial moment, can play the effect of good protection workman personal safety.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the structural representation of the utility model drill body;
Fig. 3 is use view of the present utility model;
Wherein, 1-drill body, 2-shank, 3-guide part, 4-cutting portion, 5-chip pocket, 6-protective cover, 7-fulcrum.
The specific embodiment
Below in conjunction with accompanying drawing, describe optimal technical scheme of the present utility model in detail.
As shown in the figure, drill bit with protective cover of the present utility model, comprise drill body 1, described drill body 1 comprises the shank 2 for clamping, guide part 3 and cutting portion 4, on the outer surface of described guide part 3, be provided with a plurality of spiral chip pockets 5, shank 2 centre positions at described drill body 1 are provided with protective cover 6, described protective cover 6 is the spherical or umbrella of semicircle, and its center is connected by threads turn with the shank 2 of described drill body 1, and be evenly provided with three fulcrums on the base of described protective cover 6, the length ratio of the length of wherein said shank 2 and described guide part 3 is 1:1～0.8:1.
Drill bit with protective cover of the present utility model; on drill body, be provided with protective cover; can prevent that chip from flashing; hurt workman; also can collect chip, when particularly holing on end face, and arranging of protective cover can also prevent that drill bit from rocking simultaneously; prevent from training off, improve the precision of boring.
Three fulcrums be arranged so that the more stable support of protective cover in the plane, and can not rock.
The length of shank is identical with the length of guide part or smaller, can effectively utilize the length of guide part, prevents the degree of depth of protective cover impact boring.
Drill bit with protective cover of the present utility model; in the process of using; first protective cover is moved up; after drill bit is aimed at, protective cover is moved down until three fulcrum supports of protective cover, in the plane of needs boring, start after boring, whole drill body is rotated down; because protective cover is threaded with the shank of drill body; so protective cover is motionless, be buckled in boring plane, until holed always.The chip that after completing, boring stays just, in the scope of protective cover enclosing, can not scatter everywhere, if holed on end face, chip just directly drops in protective cover, can not drop and hurt sb.'s feelings.
Drill bit with protective cover of the present utility model; simple in structure; very practical; can prevent that chip from flashing hurts sb.'s feelings; can also prevent that the unexpected drill bit fractureing from hurting sb.'s feelings crucial moment, can play the effect of good protection workman personal safety, and arranging of protective cover can also prevent that drill bit from rocking; prevent from training off, improve the precision of boring.
Claims (3)
1. the drill bit with protective cover; it is characterized in that: comprise drill body (1); described drill body (1) comprises shank (2), guide part (3) and the cutting portion (4) for clamping; on the outer surface of described guide part (3), be provided with a plurality of spiral chip pockets (5); shank (2) centre position in described drill body (1) is provided with protective cover (6); described protective cover (6) is the spherical or umbrella of semicircle, and the shank (2) of its center and described drill body (1) is rotationally connected.
2. the drill bit with protective cover as claimed in claim 1, is characterized in that: described protective cover (6) is threaded connection with the shank (2) of described drill body (1), and is evenly provided with three fulcrums (7) on the base of described protective cover (6).
3. the drill bit with protective cover as claimed in claim 1 or 2, is characterized in that: the length ratio of the length of described shank (2) and described guide part (3) is 1:1～0.8:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320466174.8U CN203459714U (en) | 2013-08-01 | 2013-08-01 | Drill bit with protecting cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320466174.8U CN203459714U (en) | 2013-08-01 | 2013-08-01 | Drill bit with protecting cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203459714U true CN203459714U (en) | 2014-03-05 |
Family
ID=50172097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320466174.8U Expired - Fee Related CN203459714U (en) | 2013-08-01 | 2013-08-01 | Drill bit with protecting cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203459714U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338973A (en) * | 2013-08-01 | 2015-02-11 | 天工爱和特钢有限公司 | Drill bit with protection cover |
| CN106180789A (en) * | 2016-08-16 | 2016-12-07 | 无锡尊宝电动车有限公司 | A kind of puncher for the boring of buffing machine shell |
| CN111014758A (en) * | 2019-11-21 | 2020-04-17 | 嘉兴五洲轴承科技有限公司 | Bearing processing machine tool |
-
2013
- 2013-08-01 CN CN201320466174.8U patent/CN203459714U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338973A (en) * | 2013-08-01 | 2015-02-11 | 天工爱和特钢有限公司 | Drill bit with protection cover |
| CN106180789A (en) * | 2016-08-16 | 2016-12-07 | 无锡尊宝电动车有限公司 | A kind of puncher for the boring of buffing machine shell |
| CN111014758A (en) * | 2019-11-21 | 2020-04-17 | 嘉兴五洲轴承科技有限公司 | Bearing processing machine tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20170801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |