CN207521774U - New type bit holder - Google Patents
New type bit holder Download PDFInfo
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- CN207521774U CN207521774U CN201721341613.7U CN201721341613U CN207521774U CN 207521774 U CN207521774 U CN 207521774U CN 201721341613 U CN201721341613 U CN 201721341613U CN 207521774 U CN207521774 U CN 207521774U
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- axis hole
- drill bit
- main body
- cross
- hole
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Abstract
A kind of New type bit holder of drill chuck technical field, the axis hole including main body and with main body coaxial arrangement, is provided with magnet in the axis hole；The axis hole is used to clamp drill bit, the handle of a knife of the magnet adsorption fixed drill bit.The utility model in axial restraint drill bit, is further limited, in operation, without adjusting the position of clamping jaw by magnet adsorption by the cooperation of both axis hole and drill bit handle of a knife cross section, you can realize bit change-over, it is simple in structure, and it is easy to operate.
Description
Technical field
The utility model relates to a kind of technology in drill chuck field, specifically a kind of New type bit holders.
Background technology
In the prior art, drill chuck is a kind of common electric tool and machine tools accessory, particularly drilling machine,
Using more frequently in lathe process.Drill chuck is divided into spanner drill chuck, hand fastening drill clutch according to locking mechanism currently on the market
And keyless drill chuck.The structure of general drill chuck is such：Clamper main body rear end is equipped with driving the connecting hole being mechanically coupled,
There is clamping jaw hole in its forepart, and clamping jaw is provided in the clamping jaw hole of clamper main body, is retreated by stretching in outer power drive clamping jaw hole, so as to
It clamps or unclamps clamped drill bit handle of a knife.
A variety of different collets have been had developed in the prior art.In a form of collet, circumferentially with about 120 degree
Three clamping jaws being separated from each other of angle, by the movement of clamping jaw, come the polygon axostylus axostyle of clamping jaw and tool, (cross section leads to
It is often regular hexagon) cooperation, drill bit handle of a knife to be driven to rotate.
It is adapted therewith, additionally provides pawl to realize the axially position to tool.For example, in american documentation literature
US6554292 discloses a kind of pawl structure for moving and being carried out to tool axially position around spiral channel.On the one hand, it is such
Structure is extremely complex.On the other hand, it is required that pawl seat axially moves relative to clamping jaw, axial limiting could be realized, because
This operation is complex.
It is therefore desirable to have a kind of technical solution is come at least one in the drawbacks described above that overcomes or at least mitigate the prior art
It is a.
Utility model content
The utility model is directed to deficiencies of the prior art, it is proposed that a kind of New type bit holder is inhaled by magnet
Axial restraint drill bit is attached to, is further limited by the cooperation of both axis hole and drill bit handle of a knife cross section, in operation, nothing
The position of clamping jaw need to be adjusted, you can realize bit change-over, it is simple in structure, it is easy to operate.
The utility model is achieved through the following technical solutions：
The utility model includes main body and the axis hole with main body coaxial arrangement, and magnet is provided in the axis hole；
The axis hole is used to clamp drill bit, the handle of a knife of the magnet adsorption fixed drill bit.
The cross-sectional shape of separation structure and the cross-sectional shape of drill bit handle of a knife coordinate inside the axis hole.
Preferably, the axis hole is blind hole stepped hole, including front axle bore portion and rear axle bore portion, the magnet
It is fixed on the bottom of rear axle bore portion；Correspondingly, the main body is equipped with drive shaft connecting hole, the drive shaft connecting hole set
If on the driving shaft；
The cross-sectional shape of the rear axle bore portion coordinates with the cross-sectional shape of drill bit handle of a knife.
Preferably, the axis hole is through-hole, including axis hole leading portion, axis hole stage casing and the axis hole back segment being sequentially connected,
The axis hole back segment is arranged on the driving shaft, and the magnet is fixed on the top of axis hole back segment；
The cross-sectional shape in the axis hole stage casing coordinates with the cross-sectional shape of drill bit handle of a knife.
Preferably, the cross section is polygonal cross-section.
Be equipped with several clamping jaws in the main body, the clamping jaw along the axially inclined setting of main body and along main body axially and radially
Synchronizing moving clamps or loosens drill bit.
Technique effect
Compared with prior art, the utility model by magnet adsorption in axial restraint drill bit, further by axis hole with
The cooperation of both drill bit handle of a knifes cross section is limited, in operation, without adjusting the position of clamping jaw, you can realizes drill bit more
It changes, it is simple in structure, it is easy to operate.
Description of the drawings
Fig. 1 is the cross-sectional view of embodiment 1；
Fig. 2 is Section A-A schematic diagram in Fig. 1；
Fig. 3 is the cross-sectional view of embodiment 2；
Fig. 4 is section B-B schematic diagram in Fig. 3；
In figure：Main body 1, clamping jaw 2, axis hole 3, drive shaft connecting hole 4, magnet 5, drill bit 6, front axle bore portion 31, rear axis hole
Part 32, axis hole leading portion 33, axis hole stage casing 34, axis hole back segment 35.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment 1
Main body 1 is cylindrical revolving body in the present embodiment, as shown in Figure 1 based on 1 sectional structure chart；The shape of main body 1
Shape can also be other any suitable shapes, can be made of steel or other any suitable materials and method commonly used in the art.
Main body 1 is equipped with axis hole 3 in the utility model, it is preferable that axis hole 3 is blind hole stepped hole, larger including aperture
The smaller rear axle bore portion 32 of front axle bore portion 31 and aperture, the aperture of wherein front axle bore portion 31 are greater than its design and accommodate
Maximum drill bit handle of a knife diameter, the cross-sectional shape of axis hole part 32 and the handle of a knife cross-sectional shape of drill bit 6 coordinate, rear axis hole
The bottom of part 32 is equipped with magnet 5, and the suction force range of magnet 5 is 10~50N；
Main body 1 is additionally provided with drive shaft connecting hole 4 simultaneously, and main body 1 is set in the driving of driver by drive shaft connecting hole 4
On axis, and main body and drill bit is driven to rotate jointly by the latter.Preferably, drive shaft connecting hole 4 is threaded hole, and threaded hole can have
There are standard size and shape, to be threadedly coupled with drive shaft.
Preferably, the cross section of rear axle bore portion 32 is polygonal cross-section.
Preferably, if being provided with the dry passage for accommodating clamping jaw 2 in main body 1, channel is with about 120 degree of angle interval
Setting.Clamping jaw 2 is separately positioned in these channels, and can be moved back and forth in channel.It is provided between main body 1 and clamping jaw 2
Screw drive structure or other driving devices adjust the position of clamping jaw 2 in the channel in a manner of manually or electrically, are needing
When clamping drill bit 6, the clamping jaw is pushed along the central axis of channel towards main body 1, when needing to discharge drill bit 6, makes clamping jaw 2
It is retracted into channel.The contact surface of central axis is each roughly parallel to there are one the tools of clamping jaw 2, for contacting the handle of a knife of drill bit 6,
And drill bit 6 is driven to be rotated jointly with drive shaft whereby.
The present embodiment can keep clamping jaw 2 to be in relaxation state in more bit change 6, by operator manually or special tool
Tool pulls out drill bit 6 from axis hole 3.
Embodiment 2
Main body 1 is cylindrical revolving body in the present embodiment, as shown in Figure 3 based on 1 sectional structure chart.
Main body 1 is equipped with axis hole 3 in the utility model, it is preferable that axis hole 3 includes the axis hole leading portion 33, the axis that are sequentially connected
Hole stage casing 34 and axis hole back segment 35, the aperture of central axis hole leading portion 33 are greater than the straight of the maximum drill bit handle of a knife that its design accommodates
Diameter, the cross-sectional shape in axis hole stage casing 34 coordinate with the handle of a knife cross-sectional shape of drill bit 6, and axis hole back segment 35 is for threaded hole and in axis
The top of hole back segment 35 is equipped with magnet 5, and threaded hole can have standard size and shape, to carry out screw thread company with drive shaft
It connects, axis hole back segment 35 is set in the drive shaft of driver, and main body and drill bit is driven to rotate jointly by the latter.
The suction force range of magnet 5 is 10~50N.
Preferably, if being provided with the dry passage for accommodating clamping jaw 2 in main body 1, channel is with about 120 degree of angle interval
Setting.Clamping jaw 2 is separately positioned in these channels, and can be moved back and forth in channel.It is provided between main body 1 and clamping jaw 2
Screw drive structure or other driving devices adjust the position of clamping jaw 2 in the channel in a manner of manually or electrically, are needing
When clamping drill bit 6, the clamping jaw is pushed along the central axis of channel towards main body 1, when needing to discharge drill bit 6, makes clamping jaw 2
It is retracted into channel.The contact surface of central axis is each roughly parallel to there are one the tools of clamping jaw 2, for contacting the handle of a knife of drill bit 6,
And drill bit 6 is driven to be rotated jointly with drive shaft whereby.
The present embodiment can keep clamping jaw 2 to be in relaxation state in more bit change 6, by operator manually or special tool
Tool pulls out drill bit 6 from axis hole 3.
It is emphasized that：The above is only the preferred embodiment of the present utility model, and not the utility model is appointed
What formal limitation, every any simple modification made according to the technical essence of the utility model to above example, etc.
With variation and modification, in the range of still falling within technical solutions of the utility model.
Claims (7)
1. a kind of New type bit holder, which is characterized in that the axis hole including main body and with main body coaxial arrangement, in the axis hole
It is provided with magnet；
The axis hole is used to clamp drill bit, the handle of a knife of the magnet adsorption fixed drill bit.
2. New type bit holder according to claim 1, it is characterized in that, inside the axis hole cross-sectional shape of separation structure with
The cross-sectional shape cooperation of drill bit handle of a knife.
3. New type bit holder according to claim 1, it is characterized in that, the axis hole is blind hole stepped hole, including front axle
Bore portion and rear axle bore portion, the magnet are fixed on the bottom of rear axle bore portion；It is driven correspondingly, the main body is equipped with
Moving axis connecting hole, the drive shaft connecting hole are arranged on the driving shaft.
4. New type bit holder according to claim 3, it is characterized in that, cross section and the drill bit handle of a knife of the rear axle bore portion
Cross section be polygonal cross-section, two polygonal cross-sections cooperate.
5. New type bit holder according to claim 1, it is characterized in that, the axis hole is through-hole, including what is be sequentially connected
Axis hole leading portion, axis hole stage casing and axis hole back segment, the axis hole back segment are arranged on the driving shaft, and the magnet is fixed on axis
The top of hole back segment.
6. New type bit holder according to claim 5, it is characterized in that, cross section and the drill bit handle of a knife in the axis hole stage casing
Cross section is polygonal cross-section, and two polygonal cross-sections cooperate.
7. New type bit holder according to claim 1, it is characterized in that, several clamping jaws, the folder are equipped in the main body
Pawl clamps along the axially inclined setting of main body and along main body axially and radially synchronizing moving or loosens drill bit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721341613.7U CN207521774U (en) | 2017-10-18 | 2017-10-18 | New type bit holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721341613.7U CN207521774U (en) | 2017-10-18 | 2017-10-18 | New type bit holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207521774U true CN207521774U (en) | 2018-06-22 |
Family
ID=62569744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721341613.7U Active CN207521774U (en) | 2017-10-18 | 2017-10-18 | New type bit holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207521774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893204A (en) * | 2019-02-28 | 2019-06-18 | 成都真实维度科技有限公司 | A kind of more drill-bit changing device for being guided on bone drilling device automatically |
-
2017
- 2017-10-18 CN CN201721341613.7U patent/CN207521774U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109893204A (en) * | 2019-02-28 | 2019-06-18 | 成都真实维度科技有限公司 | A kind of more drill-bit changing device for being guided on bone drilling device automatically |
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