CN200991768Y - Novel drill clip-head - Google Patents
Novel drill clip-head Download PDFInfo
- Publication number
- CN200991768Y CN200991768Y CN 200620141620 CN200620141620U CN200991768Y CN 200991768 Y CN200991768 Y CN 200991768Y CN 200620141620 CN200620141620 CN 200620141620 CN 200620141620 U CN200620141620 U CN 200620141620U CN 200991768 Y CN200991768 Y CN 200991768Y
- Authority
- CN
- China
- Prior art keywords
- connector
- jaw
- back cover
- collet body
- drill chuck
- 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 novel drill chuck. The utility model therefore adopts the following technique proposals: it is provided with a gripping jaw and a connector connecting and matching with a propelling machinery, the drill chuck is also provided with a clamping chuck body and a back cover encircling at the outside of the connector, the clamping chuck body is connected with the back cover, the connector is provided with an axial direction limit clamping chuck body and a positioning lug boss of the back cover, a washer and/or a ball bearing are/is provided between the front end surface of the positioning lug boss and the back end surface of the clamping chuck body that match with each other, the clamping chuck body is provided with an inclined gripping jaw slot, the gripping jaw is provided in the gripping jaw slot, the front end of the clamping chuck body is provided with a hole for the stretching of the gripping jaw, and the gripping jaw is connected with the screw thread at the front end of the connector. The utility model has a novel and simple structure with reliable running and convenient operation.
Description
Technical field
The utility model relates to a kind of for example drill chuck of drilling machine or electric drill of plant equipment that is installed in.
Background technology
Present popular drill chuck, the branch that hand fastening drill clutch and keyless drill chuck are arranged, the latter's structure more complicated, be provided with screw rod in its connector, connector is provided with the jaw gathering sill outward, and screw rod links to each other with jaw in the jaw gathering sill, and the advance and retreat of passing through screw rod drive the jaw motion, clamp or the drill bit that gets loose, this drill chuck is complex structure not only, and bodily form length is from great.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of new-type drill chuck of flexible operation simple in structure.For this reason, the utility model is by the following technical solutions: the connector that it is provided with jaw and is connected with driving device, described drill chuck also is provided with and is centered around outer collet body of connector and back cover, collet body is connected with the back cover, connector is provided with the positioning boss of axial qualification collet body and back cover, the front end face of described positioning boss with and its collet body rear end face that cooperates between be provided with packing ring and/or ball, described collet body is provided with the jaw groove of inclination, jaw is located in the jaw groove, the front end of collet body has the hole of stretching out for jaw, and jaw is threaded with the connector front end.Because adopt the technical solution of the utility model, the utility model novel structure is simple, reliable operation is operated nimble.
Description of drawings
Fig. 1 partly cuts open schematic diagram for a kind of embodiment of the utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
The specific embodiment
With reference to accompanying drawing.The connector 3 that the utility model is provided with jaw 2 and is connected with driving device, described drill chuck also is provided with and is centered around outer collet body of connector 1 and back cover 4, collet body is connected with the back cover, connector is provided with the positioning boss 33 of axial qualification collet body and back cover, the front end face 331 of described positioning boss with and its collet body rear end face 13 that cooperates between be provided with packing ring 17 and ball 18, described collet body is provided with the jaw groove 11 of inclination, jaw is located in the jaw groove, the front end of collet body has the hole 12 of stretching out for jaw, and jaw is threaded with the connector front end.
Connector has central through hole 32, and is connected with driving device by this hole.Totally 3 of jaws, corresponding jaw groove 11 also are 3 and evenly are provided with along the collet body circumferencial direction.The connecting thread of jaw and connector front end is a reverse thread.Drawing reference numeral 31 is the tapered thread that the connector front end is connected with jaw.Collet body and back cover adopt and are threaded in the present embodiment.
In the present embodiment, the neighboring, middle part of connector cooperates with the centre bore of collet body 14 location, and like this, the centralized positioning of collet body is simple in structure, assembles also very convenient.
In the present embodiment, accompany the round element 6 that periphery has spring leaf 61 between the back cover at positioning step and positioning step rear portion, spring leaf has self-locking position 62, and described back cover inwall is provided with the groove 41 that cooperates with spring leaf self-locking position.Like this, make the utility model also possess auto-lock function, no matter drill chuck rotates and reverse, and can both guarantee the clamping of jaw to drill bit.Drawing reference numeral 5 is the ball between round element and the back cover, and groove 41 can adopt V-shaped groove.When the operation collet body rotates, jaw is travelled forward, when being the downward direction motion of Fig. 1, connector can be subjected to reaction force backward, make round element 6 be squeezed, after jaw clamps drill bit, round element 6 by jam-packed between the back cover at positioning step 33 and positioning step rear portion, because the effect of frictional force, round element are difficult to rotate, by cooperating of back cover inboard wall groove and spring leaf, unless active backward rotation collet body, can not relatively rotate by the direction of the jaw that gets loose between connector and the collet body, when making forward and backward rotation drill chuck, jaw remains the clamping to drill bit.
For the convenience of operating, present embodiment also is provided with the fixed cover 7 that can not rotate relative to connector in the outside of back cover.Drawing reference numeral 8 is the location jump ring.
In the present embodiment the front end face 331 of positioning step with and its collet body rear end face 13 that cooperates between set packing ring 17 and ball 18; can reduce the front end face 331 of positioning step and the frictional force between the collet body rear end face 13; both played the effect that the protection part increases the service life, more flexible in the time of making the operation drill chuck again.When particularly possessing other functional structures such as self-locking structure when drill chuck, between the front end face 331 of positioning step and collet body rear end face 13, packing ring 17 and/or ball 18 are set, both made full use of the confined space in the drill chuck, make more compact and reasonable of structure, and can also make the more convenient operation of drill chuck and laborsaving.
In the utility model, the front end face 331 of positioning step with and its collet body rear end face 13 that cooperates between also packing ring 17 or ball 18 can only be set, perhaps adopt other to play the part of similar functions.
Claims (5)
1, a kind of new-type drill chuck, it is characterized in that the connector that it is provided with jaw and is connected with driving device, described drill chuck also is provided with and is centered around outer collet body of connector and back cover, collet body is connected with the back cover, connector is provided with the positioning boss of axial qualification collet body and back cover, the front end face of described positioning boss with and its collet body rear end face that cooperates between be provided with packing ring and/or ball, described collet body is provided with the jaw groove of inclination, jaw is located in the jaw groove, the front end of collet body has the hole of stretching out for jaw, and jaw is threaded with the connector front end.
2, a kind of new-type drill chuck as claimed in claim 1 is characterized in that the neighboring, middle part of connector cooperates with the centre bore location of collet body.
3, a kind of new-type drill chuck as claimed in claim 1, the connecting thread that it is characterized in that jaw and connector front end is a reverse thread.
4, a kind of new-type drill chuck as claimed in claim 1, it is characterized in that between the back cover at positioning step and positioning step rear portion, accompanying the round element that periphery has spring leaf, spring leaf has the self-locking position, and described back cover inwall is provided with the groove that cooperates with spring leaf self-locking position.
5, a kind of new-type drill chuck as claimed in claim 1 is characterized in that being provided with in the outside of back cover the fixed cover that can not rotate relative to connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620141620 CN200991768Y (en) | 2006-12-27 | 2006-12-27 | Novel drill clip-head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620141620 CN200991768Y (en) | 2006-12-27 | 2006-12-27 | Novel drill clip-head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200991768Y true CN200991768Y (en) | 2007-12-19 |
Family
ID=38944846
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620141620 Expired - Fee Related CN200991768Y (en) | 2006-12-27 | 2006-12-27 | Novel drill clip-head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200991768Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010081394A1 (en) * | 2009-01-13 | 2010-07-22 | Yu Qingzi | Self-tightening drill chuck |
| WO2013029312A1 (en) * | 2011-09-02 | 2013-03-07 | 威海达旺五金制品有限责任公司 | Novel self-tightening drill chuck |
-
2006
- 2006-12-27 CN CN 200620141620 patent/CN200991768Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010081394A1 (en) * | 2009-01-13 | 2010-07-22 | Yu Qingzi | Self-tightening drill chuck |
| WO2013029312A1 (en) * | 2011-09-02 | 2013-03-07 | 威海达旺五金制品有限责任公司 | Novel self-tightening drill chuck |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |