CN101100005B - Elastic cover for drill clamping head - Google Patents
Elastic cover for drill clamping head Download PDFInfo
- Publication number
- CN101100005B CN101100005B CN200710069809XA CN200710069809A CN101100005B CN 101100005 B CN101100005 B CN 101100005B CN 200710069809X A CN200710069809X A CN 200710069809XA CN 200710069809 A CN200710069809 A CN 200710069809A CN 101100005 B CN101100005 B CN 101100005B
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- CN
- China
- Prior art keywords
- elastic cover
- drill chuck
- main body
- drill
- convex 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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- Drilling And Boring (AREA)
Abstract
The present invention provides one kind of fastening sleeve for drill chuck, and belongs to the field of mechanical technology. The fastening sleeve is one ring fixed on the upper end of the drill chuck and possessing lugs in the outside. Turning the fastening sleeve directly by hand can rotate the main body for loading or unloading a bit easily. The fastening sleeve with lugs results in increased friction force and easy turning, and has high safety and convenient rotation.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of elastic cover of the drill chuck that is used for the clamping drill bit, particularly drill chuck.
Background technology
Bench drill is widely used in machining, in order to process different workpiece, often needs to change different drill bits.
Drill chuck is exactly to be used for easy, quick more a kind of device of bit change, and existing drill chuck has two types usually: spanner drill chuck and self-tightening drill chuck.Spanner drill chuck is clamping or pine need be used aid when unloading drill bit, and operation seems more loaded down with trivial details.And self-tightening drill chuck has just overcome the problems referred to above, and it loads and unloads drill bit by the elastic cover that circumferentially is connected in the drill chuck main body.Only need rotate elastic cover with hand and get final product when operation, it seems easier in operation.
Rotation elastic cover for convenience, existing drill chuck are provided with the lines that protrudes slightly in the outside of elastic cover, after operator's hand contacts this lines, can increase frictional force, thereby be convenient to rotate elastic cover.But because lines and the frictional force between operator's hand on the elastic cover are limited, particularly when the rotation of drill chuck main body was smooth, the operator possibly can't rotate elastic cover.Finally just make drill chuck can't load and unload drill bit normally.
Summary of the invention
The objective of the invention is to exist the not high problem of stability in use, a kind of elastic cover of drill chuck is provided at existing.
Purpose of the present invention can realize by following technical proposal: a kind of elastic cover of drill chuck, it is circular that elastic cover is, elastic cover is enclosed within the upper end of drill chuck main body and circumferentially fixing with the drill chuck main body, its feature in, the described elastic cover outside is provided with the convex body of several protrusions.
In the time of need being loaded and unloaded on drill bit on the drill chuck, the operator directly pulls elastic cover with hand, and elastic cover drives and can load and unload drill bit easily after main body is rotated.Because the outside of elastic cover has the convex body of protrusion, therefore, the frictional force in operating process between convex body and the operator's hand is bigger, thereby can pull elastic cover easily.
In the elastic cover of above-mentioned drill chuck, described convex body and elastic cover are connected as a single entity.Such structure is used more convenient.
In the elastic cover of above-mentioned drill chuck, described convex body is uniformly distributed in the elastic cover outside.
In the elastic cover of above-mentioned drill chuck, described convex body top is circular-arc, and the junction of convex body and elastic cover is an arc transition.Such structure just makes whole elastic cover be quincunx, and obviously, but the operation person can rotate the elastic cover of this shape easily.
In the elastic cover of above-mentioned drill chuck, described elastic cover is connected with the drill chuck main body by spline.Elastic cover and drill chuck main body circumferentially can be fixed by such structure.
As another kind of situation, in the elastic cover of above-mentioned drill chuck, the side on described drill chuck main body top has at least one plane, and above-mentioned elastic cover is inboard to be complementary with drill chuck main body shaped upper part.As can be seen, can make drill chuck main body and elastic cover circumferentially fixing firmly equally by such structure.
Compared with prior art, the elastic cover of this drill chuck is because the size of convex body is bigger, and correspondingly, the frictional force between operator's hand and the convex body is also just bigger.Therefore, when operation, elastic cover is rotated.
Simultaneously, the circular shape of convex body makes that also in pulling process, operator's hand is difficult for injured.Therefore, its safety in utilization is higher.
Description of drawings
Fig. 1 is the structural representation of drill chuck with elastic cover of this drill chuck.
Fig. 2 is along the A-A cutaway view among Fig. 1.
Fig. 3 is the structural representation of drill chuck elastic cover among the embodiment two.
Among the figure, 1, elastic cover; 2, drill chuck main body; 3, convex body.
The specific embodiment
Embodiment one
As shown in Figure 1, drill chuck is installed on the bench drill, and it is used to load and unload drill bit.
As shown in Figure 2, the elastic cover of this drill chuck is circular, and it is enclosed within on the drill chuck main body 2.Elastic cover 1 is circumferentially fixing by spline and drill chuck main body 2.
When needing clamping or pine to unload drill bit, the operator can directly pull elastic cover 1 with hand, just can drive elastic cover 1 by the frictional force between elastic cover 1 plush copper 3 and the operator's hand rotates, send that drill chuck main body 2 so just can be contained in drill bit on the drill chuck or with drill bit and unload also along with rotation in tight cover 1 rotation process.
Embodiment two
Present embodiment is basic identical with structure and the principle of embodiment one, and different place is that the two sides on drill chuck main body 2 tops all have a plane, and elastic cover 1 inboard is complementary with drill chuck main body 2 shaped upper parts, sees shown in Figure 3.After elastic cover 1 was enclosed within the top of drill chuck main body 2, elastic cover 1 had just circumferentially been fixed firmly with drill chuck main body 2.That is to say that drill chuck main body 2 can be along with together rotating when rotating elastic cover 1.
Claims (2)
1. the elastic cover of a drill chuck, elastic cover (1) is circular, elastic cover (1) is located at the upper end of drill chuck main body (2) and circumferentially fixing with drill chuck main body (2), its feature in, described elastic cover (1) outside is provided with the convex body (3) of several protrusions; Described convex body (3) top is circular-arc, and convex body (3) is an arc transition with the junction of elastic cover (1), and elastic cover (1) integral body is quincunx; Described convex body (3) is connected as a single entity with elastic cover (1); Described elastic cover (1) is connected with drill chuck main body (2) by spline.
2. the elastic cover of drill chuck according to claim 1 is characterized in that, described convex body (3) is uniformly distributed in elastic cover (1) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710069809XA CN101100005B (en) | 2007-06-29 | 2007-06-29 | Elastic cover for drill clamping head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710069809XA CN101100005B (en) | 2007-06-29 | 2007-06-29 | Elastic cover for drill clamping head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101100005A CN101100005A (en) | 2008-01-09 |
| CN101100005B true CN101100005B (en) | 2010-04-14 |
Family
ID=39034542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710069809XA Expired - Fee Related CN101100005B (en) | 2007-06-29 | 2007-06-29 | Elastic cover for drill clamping head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101100005B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212736B (en) * | 2013-04-18 | 2016-07-13 | 玉环胜友工具有限公司 | Composite bearing for keyless drill chuck |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2584326Y (en) * | 2002-12-17 | 2003-11-05 | 台州市三鸥钻夹头制造有限公司 | Improved drill chuck backcover and closefisted drill chuck with the backcover |
-
2007
- 2007-06-29 CN CN200710069809XA patent/CN101100005B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2584326Y (en) * | 2002-12-17 | 2003-11-05 | 台州市三鸥钻夹头制造有限公司 | Improved drill chuck backcover and closefisted drill chuck with the backcover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101100005A (en) | 2008-01-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100414 Termination date: 20150629 |
|
| EXPY | Termination of patent right or utility model |