CN201895098U - Drill chuck - Google Patents
Drill chuck Download PDFInfo
- Publication number
- CN201895098U CN201895098U CN2010206158694U CN201020615869U CN201895098U CN 201895098 U CN201895098 U CN 201895098U CN 2010206158694 U CN2010206158694 U CN 2010206158694U CN 201020615869 U CN201020615869 U CN 201020615869U CN 201895098 U CN201895098 U CN 201895098U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- drill chuck
- adapter sleeve
- overcoat
- back cover
- 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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- Gripping On Spindles (AREA)
Abstract
The utility model provides a drill chuck, which comprises a screw rod, an ejector block disposed at the front end of the screw rod, a rotatable outer sleeve and a plurality of clamping jaws. A spring is connected between each two adjacent clamping jaws, the outer sleeve connected in a threaded manner is capable of rotating and axially moving around the screw rod, the outer sleeve holds the clamping jaws from the outside of the clamping jaws, the drill chuck is further provided with a rear sleeve which is capable of axially sliding synchronously along with the axial motion of the outer sleeve but cannot rotate relative to the screw rod, and a central power connecting hole extending inwards is arranged at the rear end of the screw rod. The shortage that a small drill chuck cannot be gripped firmly in operation but only can be gripped firmly by the aid of an external mechanical structure which is connected with the drill chuck and serves as a holding power-assisted position is overcome on the premise of not affecting structure and simple assembly characteristic of the small drill chuck, so that the drill chuck having the power connection characteristics is more convenient to operate when compared with a past drill chuck.
Description
Technical field
The utility model relates to a kind of drill chuck.
Background technology
Be contained in such as the small-sized drill chuck on the driving devices such as electric drill, comprise screw rod, be arranged on the jacking block of screw front end, rotatable overcoat, a plurality of jaw, connect spring between the jaw, described overcoat can the peripherally pivoted and axially-movable at screw rod by being threaded, described overcoat is lived jaw from the periphery bundle of jaw, it is to extend an end by spiro rod rear end that these drill chucks are connected with power, makes hexagon and connects, and this power syndeton is bad with the compatibility that is connected of common electric drill.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of drill chuck, and it can improve above-mentioned small-sized drill chuck, keeps its characteristics that are easy to assemble simple in structure can have good power simultaneously again and connects compatibility.For this reason, the utility model is by the following technical solutions: it comprises screw rod, is arranged on the jacking block of screw front end, rotatable overcoat, a plurality of jaw, connect spring between the adjacent jaw, described overcoat can the peripherally pivoted and axially-movable at screw rod by being threaded, described overcoat is lived jaw from the periphery bundle of jaw, described drill chuck also is provided with the back cover that can endwisely slip synchronously with the axially-movable of overcoat but can not rotate relative to screw rod, and the rear end of described screw rod extends internally and is provided with center power connecting hole.Owing to adopt the technical solution of the utility model, the utility model can connect the acquisition exterior power by the power hole as conventional drill chuck, simultaneously, under the prerequisite of structure that does not influence small-sized drill chuck and the simple characteristics of assembling, having solved small-sized drill chuck the time can't fully be held and can only be affectedly bashful shortcoming by means of the power position by means of the extraneous frame for movement conduct that is connected with drill chuck in operation, make to possess the drill chuck that the utility model power connects characteristics, also more convenient in operation than drill chuck in the past.
Description of drawings
Fig. 1 partly cuts open schematic diagram for embodiment provided by the utility model when jaw is in whole contraction.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 partly cuts open schematic diagram for embodiment provided by the utility model is at jaw when decontroling fully.
Fig. 4 is the B-B cutaway view of Fig. 3.
The explosive view of the embodiment that provides described in the utility model is provided Fig. 5.
The specific embodiment
With reference to accompanying drawing.The utility model comprises screw rod 1, is arranged on the jacking block 7 of screw front end, rotatable overcoat 6, a plurality of jaw 8, connect spring 9 between the adjacent jaw, described overcoat 6 can be in screw rod 1 peripherally pivoted and axially-movable by being threaded, described overcoat 6 is lived jaw from the periphery bundle of jaw 8, described drill chuck also is provided with the back cover 2 that can endwisely slip synchronously with the axially-movable of overcoat 6 but can not rotate relative to screw rod 1, when clamping tool, but the right-hand man holds overcoat 6 and back cover 2 rotates clamping tool, and the rear end of described screw rod 1 extends internally and is provided with center power connecting hole 11.
Described drill chuck also is provided with the adapter sleeve 5 that is synchronized with the movement with overcoat 6 that is enclosed within screw rod 1 periphery, and the rear end of described overcoat 6 and adapter sleeve 5 are threaded, and described adapter sleeve 5 and described screw rod 1 are threaded, and described adapter sleeve 5 and back cover 2 are rotationally connected.
Described adapter sleeve 5 is provided with the step 51 that supplies back cover 2 and overcoat 6 to recline, so that back cover 2 and overcoat 6 are played stabilization.
The outer peripheral face of described adapter sleeve 5 is provided with annular groove 52, is provided with the rolling element 3 in the annular groove 52 that is on the adapter sleeve between described back cover 2 and the adapter sleeve 5.The inwall of described back cover 2 is provided with the annular groove 22 that cooperates with annular groove 52 on the adapter sleeve is set, described rolling element from after fill in annular groove 22 plugging hole 21 that puts, and be in described two annular grooves 52,22.The obstruction 4 of drawing reference numeral 4 for blocking plugging hole.Like this, can pour into rolling element as much as possible, help the stable of back cover and the feel when holding.
Anti-rotation for the back cover, adopt following structure: described screw rod 1 surface has the plane 12 that prevents that the back cover from rotating between the sliding area of back cover, and the inboard of described back cover has the plane 23 that cooperates with the plane 12 of screw surface.Described screw rod 1 is hollow screw rod, and described jacking block 7 is inserted on the front end of screw rod 1, and jaw 8 is sandwiched between overcoat 6 and the jacking block 7.
Described jaw can be set to 3, also can make full use of the expansion of screw diameter, is provided with four jaws thereon.
Claims (8)
1. drill chuck, comprise screw rod, be arranged on the jacking block of screw front end, rotatable overcoat, a plurality of jaw, connect spring between the adjacent jaw, described overcoat can the peripherally pivoted and axially-movable at screw rod by being threaded, described overcoat is lived jaw from the periphery bundle of jaw, it is characterized in that described drill chuck also is provided with the back cover that can endwisely slip synchronously with the axially-movable of overcoat but can not rotate relative to screw rod, the rear end of described screw rod extends internally and is provided with center power connecting hole.
2. a kind of drill chuck as claimed in claim 1, it is characterized in that described drill chuck also is provided with the adapter sleeve that is synchronized with the movement with overcoat that is enclosed within the screw rod periphery, the rear end and the adapter sleeve of described overcoat are threaded, and described adapter sleeve is connected with described screw flight, and described adapter sleeve and back cover are rotationally connected.
3. a kind of drill chuck as claimed in claim 1 is characterized in that described adapter sleeve is provided with the step for the back is overlapped and overcoat reclines.
4. as claim 1,2 or 3 described a kind of drill chucks, it is characterized in that the outer peripheral face of described adapter sleeve is provided with annular groove, be provided with the rolling element in the annular groove that is on the adapter sleeve between described back cover and the adapter sleeve.
5. a kind of drill chuck as claimed in claim 4, it is characterized in that described screw surface has the plane that prevents that the back cover from rotating between the sliding area of back cover, the inboard of described back cover has the plane that cooperates with the plane of screw surface, the inwall of described back cover is provided with the annular groove that cooperates with annular groove on the adapter sleeve is set, and described rolling element is in described two annular grooves.
6. as claim 1,2 or 3 described a kind of drill chucks, it is characterized in that the hollow screw rod in described jacking block screw rod position, described jacking block is inserted on the front end of screw rod.
7. as claim 1,2 or 3 described a kind of drill chucks, it is characterized in that it is provided with four jaws.
8. as claim 1,2 or 3 described a kind of drill chucks, it is characterized in that it is provided with three jaws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206158694U CN201895098U (en) | 2010-11-13 | 2010-11-13 | Drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206158694U CN201895098U (en) | 2010-11-13 | 2010-11-13 | Drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201895098U true CN201895098U (en) | 2011-07-13 |
Family
ID=44253017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206158694U Expired - Fee Related CN201895098U (en) | 2010-11-13 | 2010-11-13 | Drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201895098U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225900A (en) * | 2018-01-19 | 2018-06-29 | 东莞市中泰精创精密科技有限公司 | Self-locking jig on measurer for pulling force |
| CN108788253A (en) * | 2017-04-28 | 2018-11-13 | 昆山义成工具有限公司 | Electric drill collet |
-
2010
- 2010-11-13 CN CN2010206158694U patent/CN201895098U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108788253A (en) * | 2017-04-28 | 2018-11-13 | 昆山义成工具有限公司 | Electric drill collet |
| CN108225900A (en) * | 2018-01-19 | 2018-06-29 | 东莞市中泰精创精密科技有限公司 | Self-locking jig on measurer for pulling force |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20121113 |