CN201304508Y - Shanked drill chuck of a gun drill - Google Patents
Shanked drill chuck of a gun drill Download PDFInfo
- Publication number
- CN201304508Y CN201304508Y CNU2008201767275U CN200820176727U CN201304508Y CN 201304508 Y CN201304508 Y CN 201304508Y CN U2008201767275 U CNU2008201767275 U CN U2008201767275U CN 200820176727 U CN200820176727 U CN 200820176727U CN 201304508 Y CN201304508 Y CN 201304508Y
- Authority
- CN
- China
- Prior art keywords
- drill
- rear portion
- main shaft
- drill chuck
- collet 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 relates to a shanked drill chuck of a gun drill which comprises a chuck body, a pin inserted into the chuck body, an endocone nut matched with screws on the upper part of the pin, a front housing, a rear housing and a rear cover, characterized in that the central hole of the chuck body is extended backwards to a tubular protrusion part along a tubular hole wall, the rear part of the protrusion part is arranged with an outer ring; the rear end of the protrusion part is provided with a cross-shaped notch matched with a cross-shaped sharps on the main shaft of the gun drill. A locking mechanism which is matched with a trapezoidal groove on the main shaft is arranged in the rear housing. The mechanism comprises a locking plate sleeved into the outer diameter of the rear part of the chuck body, a spring, a notch arranged on one side of the rear part of the chuck body and provided with a rectangular hole communicated with the central hole in the middle of the notch. The utility model keeps the original function of the chuck body, which can be hung on the conversion device, and can be released from the main shaft of the gun drill conveniently.
Description
Technical field
The utility model relates to a kind of drill gun drill chuck.Especially a kind of original clamping drill bit of drill chuck function that kept, other has a kind of drill chuck that can be installed to the function on the drill gun on the drill chuck exchange apparatus again at any time easily that is suspended on.Special still be connected firmly with the drill gun main shaft and can with the convenient drill gun drill chuck of throwing off of drill gun main shaft.
Background technology
Existing drill gun drill chuck can only be fixed on single use on the main shaft of drill gun, does not have to satisfy to ask with the tool that the transposing drilling tool is provided as required for being suspended on the drill chuck exchange apparatus.Therefore every transposing drill bit must be dismantled and clamping again, results in hand cramps to operation.Even when work high above the ground,, the transposing drill bit leads to a disaster owing to falling down accidentally and with drill bit.People attempt to design and a kind ofly can hang the drill chuck that clips drill bit more than two on a drill gun, can select of any appropriate to be installed on the main shaft of drill gun, and can make things convenient for rotation to be hung with the drill gun of the drill chuck exchange apparatus of two above drill chucks at any time with the transposing drill chuck.Designing the problem that such drill gun at first will solve is to design successfully a kind of drill chuck that is suspended on the drill chuck exchange apparatus.Can provide so just that the user selects, rotary drilling chuck exchange apparatus, and then this drill chuck that is hanging, is being fit to is installed on the drill gun.The applicant has design to drill gun drill chuck exchange apparatus and the drill chuck with above performance, and has applied for patent.But also there is further perfect place in former scheme.As the band handle drill chuck of patent applied for, structure is complicated, and the mounting or dismounting drill chuck is wanted to finish in push-and-pull simultaneously, feels firmly inharmonious, uncomfortable in therefore using, and makes troubles for the mounting or dismounting drill chuck.
Summary of the invention
The purpose of the utility model is to disclose a kind of original clamping drill bit of drill chuck function that both kept to society, can be suspended on the drill chuck exchange apparatus again, also can be installed on the drill gun at any time easily, drill chuck is connected and throws off drill chuck easily with drill gun.
It is such that the utility model solves the technical scheme that above technical problem takes:
A kind of drill gun band handle drill chuck, comprise, the front portion is provided with the collet body of three inclined holes, rear portion band medium pore, insert three pinches in anterior three inclined holes of collet body, interior flare nut with pinch top threaded engagement, be inserted in the collet body rear portion, with the tight cover of interior flare nut and interior flare nut is embedded in procapsid in the groove of collet body, the back casing at procapsid rear portion; It is characterized in that the medium pore of collet body extends back into the protuberance of tubulose along the tubulose hole wall, the rear portion of tubulose protuberance is provided with Wai Kequan." ten " font breach has been called in the rear end of described tubulose protuberance, should " ten " font breach matches with the protruding key of " ten " font on the drill gun main shaft.Be provided with the locking mechanism that a main shaft upper trapezoid groove fastens in the described back casing.
The locking mechanism that terraced trapezoidal groove on described and the drill gun main shaft fastens comprises that be enclosed within the lockplate on the external diameter of collet body rear portion, lockplate one end is mounted with spring, and collet body rear portion one side has a breach, the oblong aperture that has an endoporus to communicate in the breach.
Described outer gram encloses between preceding and back casing and leaves the gap.
Owing to take above-mentioned technical measures, compared with prior art its advantage is:
Because the medium pore of the collet body of drill chuck extends back into the protuberance of tubulose along the tubulose hole wall,, the rear portion of tubulose protuberance is provided with Wai Kequan, and such drill chuck just can cooperate with the runing rest of drill chuck exchange apparatus.The utility model drill chuck is packed into behind the runing rest, is blocked by the Wai Kequan that is located at tubulose protuberance rear portion again, drill chuck is hung and can not fall down.
Owing to be provided with a locking mechanism that fastens with main shaft upper trapezoid groove in the back casing, make the lockplate maintenance drill chuck fixed position can telescopic moving.
Because " ten " font breach is established in the rear end of drill chuck tubulose protuberance, should " ten " font breach match with the protruding key of " ten " font on the drill gun head main shaft, make drill chuck and drill gun main shaft be connected and break away from convenient.
Description of drawings
Fig. 1 is the utility model embodiment 1 overall structure schematic diagram:
Fig. 2 is the utility model embodiment 2 overall structure schematic diagrames:
Fig. 3 is Figure 1A-A sectional view:
Fig. 4 is Figure 1B-B sectional view:
The schematic diagram that Fig. 5 can match with " ten " font breach at the utility model embodiment drill chuck tubulose protuberance rear portion for the protruding key of " ten " font on the drill gun main shaft and the anterior dovetail groove of main shaft can fasten with the locking mechanism on the drill chuck.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Embodiment 1
Embodiment 1 is wrench drill chuck (Fig. 1).Band handle drill chuck is worn handle behind collet body.Collet body 2 front portions are provided with three inclined holes, rear portion band medium pore.Three pinches 1 insert in anterior three inclined holes of collet body.With pinch top threaded engagement be interior flare nut 3.Be inserted in collet body 2 rear portions, with interior flare nut 3 tight covers and interior flare nut is embedded in is procapsid (band gear ring procapsid) 4 in the groove of collet body 2.The procapsid rear portion is a back casing 5.Back casing is fixed on the collet body 2 rear portion external diameters.It is characterized in that the medium pore of collet body 2 extends back into the protuberance 22 of tubulose along tubular wall, the rear portion of tubulose protuberance 22 is provided with outer gram circle 9.The rear end of tubulose protuberance 22 is provided with " ten " font breach 10, should " ten " v notch v matches with the protruding key of " ten " font on the drill gun main shaft.Also be provided with the locking mechanism that fastens with main shaft upper trapezoid groove in the back casing.
The described locking mechanism that fastens with main shaft upper trapezoid groove comprises, be placed in the lockplate 6 in the back cover 5, spring 7,2 ones one sides of collet body have a breach, the rectangular through hole 202 that breach has an endoporus to communicate, lockplate 6 is enclosed within on the collet body 2 rear portion external diameters, and be embedded in the rectangular through hole 202, when under the effect of spring 7, make be embedded into lockplate further be entrapped in the drill gun main shaft upper trapezoid groove, drill chuck is fixed on the main shaft,, forces lockplate 6 to move when pressure-locking plate 6, so lockplate 6 leaves the trapezoidal groove on the drill gun main shaft, drill chuck just can outwards be pulled out.
When the wrench drill chuck is prepared to be contained in when hanging in the corresponding hole, to restrain circle 9 earlier outward pulls down, pad 8 is pulled down, at this moment the rear portion of wrench drill chuck is inserted in the corresponding suppending hole of drill chuck exchange apparatus (not drawing), pad 8 is enclosed within collet body 2 rear portions extends back into along medium pore tubulose hole wall on the external diameter of protuberance 22 of tubulose, load onto outer gram circle 9 at last and block.
In the time of on the wrench drill chuck prepares to pack into the drill gun main shaft, when holding drill chuck,, force lockplate 6 to leave trapezoidal groove on the main shaft simultaneously with wherein one pointing and pressure-lock plate 6.When drill chuck pushed away only terminal point, lockplate 6 was forced to snap in drill gun main shaft trapezoidal groove under the effect of spring 7, and drill chuck is fixed on the drill gun main shaft, in the time will transferring drill chuck, presses lockplate 6 again and just can easily drill bit be pulled out.
Above structure is connected " ten " font breach that the rear end of drill chuck rear tubular protuberance is provided with and the protruding key of " ten " font on the drill gun main shaft can more successfully operate enforcement.
Embodiment 2 (Fig. 2) is identical with the parts of implementing 1.Different is that embodiment 2 belongs to hand fastening drill clutch, with hand turn shell body 4 drive in flare nut 3, force pinch to do telescopic moving and (clamp or loosen.For the friction that reduces to turn, be provided with plane bearing 11 near interior flare nut 3 back in the prior art.Embodiment 1 usefulness hand flap hand forces band tooth procapsid 4 to rotate and drives interior flare nut 3 rotations again, reach the pinch telescopic moving, and other structure is the same with operation principle.
Claims (5)
1, a kind of drill gun band handle drill chuck, comprise, the front portion is provided with the collet body (2) of three inclined holes, rear portion band medium pore, insert three pinches (1) in anterior three inclined holes of collet body, interior flare nut (3) with pinch top threaded engagement, be inserted in chuck head body (2) rear portion, interior flare nut (3) is tightly overlapped and interior flare nut be embedded in the procapsid (4) in the groove of collet body (2), the back casing at procapsid rear portion (5); The medium pore that it is characterized in that collet body (2) extends back into the protuberance (22) of tubulose along the tubulose hole wall, and the rear portion of tubulose protuberance (22) is provided with Wai Kequan (9); The rear end of described tubulose protuberance (22) is provided with " ten " font breach (10), should " ten " font breach matches with the protruding key of " ten " font on the drill gun main shaft; Be provided with a locking mechanism that can fasten in the described back casing (5) with drill gun main shaft upper trapezoid groove.
2, drill gun band handle drill chuck according to claim 1, it is characterized in that, be provided with a locking mechanism that can fasten in the described back casing (5) with drill gun main shaft upper trapezoid groove, comprise the lockplate (6) that is enclosed within on the external diameter of collet body (2) rear portion, be buckled in the spring (7) on the lockplate (6).
3, drill gun band handle drill chuck according to claim 2 is characterized in that, described collet body (2) rear portion one side is provided with breach, and breach is an elongated slot, and the rectangular aperture (202) that communicates with medium pore is arranged in the middle of the elongated slot.
4, drill gun band handle drill chuck according to claim 1 is characterized in that, described outer gram encloses (9) at the rear portion of the protuberance (22) of tubulose, Wai Kequan, and (9) and back casing have the space between (5).
5, drill gun band handle drill chuck according to claim 1 is characterized in that, described back casing (5) one sides have an oblong aperture, and the flange of lockplate (6) exposes in oblong aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201767275U CN201304508Y (en) | 2008-11-06 | 2008-11-06 | Shanked drill chuck of a gun drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201767275U CN201304508Y (en) | 2008-11-06 | 2008-11-06 | Shanked drill chuck of a gun drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201304508Y true CN201304508Y (en) | 2009-09-09 |
Family
ID=41096970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201767275U Expired - Fee Related CN201304508Y (en) | 2008-11-06 | 2008-11-06 | Shanked drill chuck of a gun drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201304508Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102574215A (en) * | 2009-06-30 | 2012-07-11 | 罗姆股份有限公司 | Drilling device |
-
2008
- 2008-11-06 CN CNU2008201767275U patent/CN201304508Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102574215A (en) * | 2009-06-30 | 2012-07-11 | 罗姆股份有限公司 | Drilling device |
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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: 20090909 Termination date: 20101106 |