CN201760620U - Ultra-short drill chuck - Google Patents
Ultra-short drill chuck Download PDFInfo
- Publication number
- CN201760620U CN201760620U CN2010202827340U CN201020282734U CN201760620U CN 201760620 U CN201760620 U CN 201760620U CN 2010202827340 U CN2010202827340 U CN 2010202827340U CN 201020282734 U CN201020282734 U CN 201020282734U CN 201760620 U CN201760620 U CN 201760620U
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- CN
- China
- Prior art keywords
- jaw
- hole
- chuck
- bonnet
- 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 - Lifetime
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Abstract
The utility model discloses an ultra-short drill chuck, which comprises a chuck body (1) provided with a chuck-jaw hole (11). A chuck jaw (12) is arranged in the chuck jaw hole, the rear of the chuck jaw is a threaded section (13), and a nut (2) which drives the chuck jaw to extend and retract in the chuck jaw hole is meshed with the outer side of the threaded section at the rear of the chuck jaw. The ultra-short drill chuck is characterized in that a rear cover (3) is fixed at the rear end of the chuck body (1), and a through hole (31) matching with the chuck jaw and used for extending and retracting of the chuck jaw after assembly is arranged on the rear cover. The drill chuck is short in axis, smaller and more compact in structure and convenient for use and carrying.
Description
Technical field
The utility model belongs to the drill chuck design field, is specifically related to a kind of ultrashort drill chuck.
Background technology
In the prior art, drill chuck is a kind of electric tool commonly used and machine tools, particularly uses comparatively frequent in drilling machine, machined into.Drill chuck is divided into spanner drill chuck, hand fastening drill clutch and keyless drill chuck according to locking mechanism in the market.Hand fastening drill clutch generally comprises clamper main body, nut, jaw and sleeve, clamper main body is the main parts size of drill chuck, its rear end is provided with the connecting hole that is connected with driving device, its front end is the jaw hole, is provided with jaw in the jaw hole of clamper main body, and the jaw rear portion is a thread segment, the thread segment external toothing nut at jaw rear portion, under the power drive of the sleeve that is connected with nut, nut drives jaw flexible advance and retreat in the jaw hole, thereby clamps or the clipped object that gets loose.
Present drill gun has the trend of lightness, and its developing direction is littler, and is lighter, compacter.The client wishes that drill gun takes in the hand lighter, more laborsaving.Chuck is as the important accessory of drill gun, but existing market homologous series chuck is long, and mass ratio is bigger.Hand drill chuck particularly, wanting axial length, to shorten 1mm all be extremely very difficult thing.The present invention comes therefrom.
Summary of the invention
The utility model purpose is to provide a kind of ultrashort drill chuck, and purpose is to shorten existing chuck length, alleviates existing chuck quality.
In order to solve these problems of the prior art, the technical scheme that the utility model provides is:
A kind of ultrashort drill chuck, comprise the clamper main body that is provided with the jaw hole, described jaw is provided with jaw in the hole, the jaw rear portion is a thread segment, the thread segment external toothing at jaw rear portion drives the nut that jaw stretches in the jaw hole, it is characterized in that fixedly bonnet of described clamper main body rear end, assembling back and the through hole of jaw hole coupling for the jaw indentation are set on the described bonnet.
Preferably, described clamper main body hollow, described clamper main body is provided with three radially spacing jaw holes, in each jaw hole jaw is set, and described jaw thread segment becomes 15 ° of angles with the axis of chuck.
Preferably, the jaw rear end is stretched in the bonnet through hole during described jaw indentation, and the rear end face of described jaw is parallel with the bonnet end face.
Preferably, described drill chuck also comprises sleeve, and described sleeve cooperates the drive nut to rotate with nut.
Preferably, described clamper main body rear end is provided with annular knurl, and the interference fit of described clamper main body by annular knurl and bonnet be bonnet fixedly.
Jaw common in the prior art is generally cylinder, and the outside, jaw rear end is a thread segment, and jaw is flexible in the jaw hole of clamper main body.The sleeve drive nut rotates, and makes the jaw forward-reverse.The present invention researchs and develops according to the characteristic of activities of jaw in the prior art, and its basic principle is:
1, make the back transverse plane of jaw parallel with the inside and outside side plane of bonnet.By realizing by a back tip cut-off part with jaw; The technology of excision can be mill off or the rear end ledge that grinds off jaw, makes the inside and outside side plane of its rear end end face and bonnet parallel; Because jaw hole and chuck itself have 15 ° angle generally speaking, are embodied in rear end and the drill chuck axis that the jaw rear end is a jaw and are 15 ° angle; Cause the outstanding inclined-plane that forms 15 °, jaw rear end after the moulding like this, make the parallel distance of jaw on axis that can make of back transverse plane of jaw shorter the excision of inclined-plane, rear end, help reducing the axial length of whole chuck with side plane inside and outside the bonnet.
2, the through hole that design matches with the jaw hole on bonnet, normally three through holes.By when assembling jaw with the radially relative positioning of bonnet, axially go up bonnet and jaw and produce overlapping next of certain-length and connect minimizing chuck length thereby can be implemented in.When the jaw indentation, jaw can after be retracted in the through hole of bonnet, so through hole and jaw are overlapped, overlapping length maximum can be the thickness of bonnet.When certain whole chuck is assembled, need the jaw hole is corresponding with the bonnet through hole.
Than solution of the prior art, the utility model advantage is:
Technical solution of the present invention is by on the bonnet of jaw rear end through hole being set, and is overlapping by the length of through hole and jaw, thereby reduced the length of chuck indirectly.In addition,, make jaw rear end end face parallel, the axial length of minimizing chuck in the certain limit with the end face of bonnet with inclined-plane, jaw rear end excision.Ultrashort drill chuck axial length of the present invention is short, portably uses more compact of convenience, structure.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the cross section structure schematic diagram of the ultrashort drill chuck of the embodiment of the invention;
Fig. 2 is the rearview of the ultrashort drill chuck of the embodiment of the invention;
Fig. 3 is the structural representation after the ultrashort drill chuck of the embodiment of the invention is removed sleeve and jaw.
Wherein: 1 is clamper main body, and 2 is nut; 3 is bonnet; 4 is sleeve; 11 is the jaw hole; 12 is jaw; 13 is thread segment; 31 is through hole.
The specific embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are used to the present invention is described and are not limited to limit the scope of the invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment such as Fig. 1～3, this ultrashort drill chuck, comprise the clamper main body 1, the sleeve 4 that are provided with jaw hole 11, described jaw is provided with jaw 12 in the hole, the jaw rear portion is a thread segment 13, the thread segment external toothing at jaw rear portion drives the nut 2 that jaw stretches in the jaw hole, described clamper main body 1 rear end is bonnet 3 fixedly, the assembling back is set on the described bonnet supplies the through hole 31 of jaw indentation with jaw hole coupling.Described sleeve 4 cooperates the drive nut to rotate with nut.
Described clamper main body 1 hollow, described clamper main body 1 are provided with three radially spacing jaw holes 11, in each jaw hole jaw 12 are set, and described jaw thread segment becomes 15 ° of angles with the axis of chuck.The jaw rear end is stretched in the bonnet through hole 31 during described jaw 12 indentations, and the rear end face of described jaw is parallel with the bonnet end face.Described clamper main body 1 rear end and bonnet 3 are fixed by the annular knurl close-fitting.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All spirit essence is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (5)
1. ultrashort drill chuck, comprise the clamper main body (1) that is provided with jaw hole (11), be provided with jaw (12) in the described jaw hole, the jaw rear portion is thread segment (13), the thread segment external toothing at jaw rear portion drives the nut (2) that jaw stretches in the jaw hole, it is characterized in that fixedly bonnet (3) of described clamper main body (1) rear end, assembling back and the through hole (31) of jaw hole coupling for the jaw indentation are set on the described bonnet.
2. ultrashort drill chuck according to claim 1, it is characterized in that described clamper main body (1) hollow, described clamper main body (1) is provided with three radially spacing jaw holes (11), and jaw (12) is set in each jaw hole, and described jaw thread segment becomes 15 ° of angles with the axis of chuck.
3. ultrashort drill chuck according to claim 1, the jaw rear end is stretched in the bonnet through hole (31) when it is characterized in that described jaw (12) indentation, and the rear end face of described jaw is parallel with the bonnet end face.
4. ultrashort drill chuck according to claim 1 is characterized in that described drill chuck also comprises sleeve (4), and described sleeve (4) cooperates the drive nut to rotate with nut.
5. ultrashort drill chuck according to claim 1 is characterized in that described clamper main body (1) rear end is provided with annular knurl, and the interference fit of described clamper main body (1) by annular knurl and bonnet (3) be bonnet fixedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202827340U CN201760620U (en) | 2010-08-05 | 2010-08-05 | Ultra-short drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202827340U CN201760620U (en) | 2010-08-05 | 2010-08-05 | Ultra-short drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201760620U true CN201760620U (en) | 2011-03-16 |
Family
ID=43713223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202827340U Expired - Lifetime CN201760620U (en) | 2010-08-05 | 2010-08-05 | Ultra-short drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201760620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746484A (en) * | 2017-11-03 | 2019-05-14 | 苏州宝时得电动工具有限公司 | Power tool |
-
2010
- 2010-08-05 CN CN2010202827340U patent/CN201760620U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109746484A (en) * | 2017-11-03 | 2019-05-14 | 苏州宝时得电动工具有限公司 | Power tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |
|
| CX01 | Expiry of patent term |