CN206811191U - Electric drill chuck - Google Patents
Electric drill chuck Download PDFInfo
- Publication number
- CN206811191U CN206811191U CN201720461927.4U CN201720461927U CN206811191U CN 206811191 U CN206811191 U CN 206811191U CN 201720461927 U CN201720461927 U CN 201720461927U CN 206811191 U CN206811191 U CN 206811191U
- Authority
- CN
- China
- Prior art keywords
- clamping jaw
- mandrel
- electric drill
- external member
- 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.)
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Abstract
The utility model discloses a kind of electric drill chuck,Including clamping jaw,Elastomer,External member,Mandrel and positioner,At least three clamping jaws are spliced to form the tapered cylinders structure that one end external diameter is less than other end external diameter,Matching taper surface is formed on the inside of external member one end,The tapered cylinders structure that each clamping jaw is spliced can axially slide being inserted on the inside of external member one end of setpoint distance,What mandrel can axially move is inserted in and external member other end inner side,And the cylindricality column structure other end that mandrel one end is spliced tight against clamping jaw all the time,Positioner can keep mandrel to be positioned with external member axial restraint,The seamed edge that each clamping jaw is mutually butted is provided with broached-tooth design,The clamping face for clamping drill bit is formed between each seamed edge with broached-tooth design,Elastic component can give each clamping jaw to provide the elasticity tension kept to being scattered away from axis direction,The utility model is simple in construction,It is easy to operate,Manufacturing cost is low,It is fixed that drill jig is kept steady.
Description
Technical field
The utility model relates to the technical field of hardware ＆ tools, particularly relates to a kind of electric drill chuck.
Background technology
The clamping jaw of traditional electric drill chuck is that the operation structure to be formed is connected by tapered thread with external member, it is also necessary to is oriented to
Set realizes that clamping jaw tilt slide is oriented to, and structure is relative complex, and operation inconvenience, the relative side wall of clamping jaw is smooth surface, to electric drill jig
Tight stability is poor, and when torque-on-bit is excessive, drill bit easily relatively rotates with clamping jaw, be also easy to cause rotary head damage and
Come off.
Utility model content
In order to overcome drawbacks described above, the utility model provides a kind of electric drill chuck, and the gripping head structure of electric drill is simple, operation side
Just, to drill bit firm grip.
The utility model in order to solve its technical problem used by technical scheme：A kind of electric drill chuck, including clamping jaw, bullet
Property body, external member, mandrel and positioner, at least three clamping jaws be spliced to form one end external diameter be less than other end external diameter taper
Column structure, external member one end inner side form matching taper surface, the tapered cylinders structure axial direction that each clamping jaw is spliced
Being inserted on the inside of external member one end for setpoint distance can be slided, what mandrel can axially move be inserted in in the external member other end
Side, and the cylindricality column structure other end that mandrel one end is spliced tight against clamping jaw all the time, positioner can keep mandrel with
External member axial restraint positions, the seamed edge that each clamping jaw is mutually butted is provided with broached-tooth design, each to have broached-tooth design
The clamping face for clamping drill bit is formed between seamed edge, elastic component can give each clamping jaw to provide and keep dissipating to away from axis direction
The elasticity tension opened.
As further improvement of the utility model, the clamping jaw quantity is three.
As further improvement of the utility model, the clamping jaw radial section is in sector structure.
As further improvement of the utility model, each clamping jaw is located in the side wall of the seamed edge both sides with sawtooth and divided
Not She You a blind hole, and adjacent two clamping jaw splicing face side wall on blind hole position face, elastic component elastic telescopic direction
Both ends are inserted in two blind holes of connected jaw position face respectively.
As further improvement of the utility model, the elastic component is spring.
As further improvement of the utility model, the external member includes overcoat and tail sleeve, and the tail sleeve is fixedly installed in
The big one end of overcoat diameter, mandrel are installed in tail sleeve.
As further improvement of the utility model, the overcoat is connected through a screw thread with tail sleeve.
As further improvement of the utility model, described mandrel one end is bolt structure, and the other end is for connection
The foot piece of non-circular column structure, the screwed hole in the stud and tail sleeve of mandrel one end are connected by helicitic texture.
As further improvement of the utility model, irregular decorative pattern is all provided with the outside of the overcoat and on the outside of tail sleeve.
As further improvement of the utility model, pad is additionally provided with, pad is closely located in mandrel one end and by clamping jaw
Between the cylindricality column structure other end being spliced, the pad external diameter is more than the grasping part internal diameter formed between clamping jaw.
The beneficial effects of the utility model are：The utility model by setting broached-tooth design on the seamed edge that is docked in clamping jaw,
Occlusion to drill bit is realized by broached-tooth design, it is ensured that firm clamping of the chuck to drill bit, avoid electric drill brill
Head is crossed because of torque in use to relatively rotate more than chuck, causes bit breakage, and borehole accuracy has been effectively ensured,
The utility model installs spring in blind hole, passes through spring retaining clip pawl by setting blind hole in the relative side wall of clamping jaw
Open state, it is simple in construction, clamping jaw tilt slide guide sleeve is avoided, the utility model is simple in construction, easy to operate, manufacturing cost
Low, it is fixed that drill jig is kept steady.
Brief description of the drawings
Fig. 1 is front view of the present utility model；
Fig. 2 is A-A portions sectional view in Fig. 1；
Fig. 3 is clamping jaw stereogram of the present utility model；
Fig. 4 is clamping jaw front view of the present utility model；
Fig. 5 is overcoat front view of the present utility model；
Fig. 6 is mandrel stereogram of the present utility model；
Fig. 7 is tail sleeve stereogram of the present utility model.
Embodiment
Embodiment：A kind of electric drill chuck, including clamping jaw 1, elastomer 2, external member, mandrel 3 and positioner, at least three institutes
State clamping jaw 1 and be spliced to form the tapered cylinders structure that one end external diameter is less than other end external diameter, formed on the inside of external member one end matching
Taper surface, what the tapered cylinders structure that each clamping jaw 1 is spliced can axially slide setpoint distance is inserted in external member one end
Inner side, what mandrel 3 can axially move be inserted in on the inside of the external member other end, and the one end of mandrel 3 splice all the time tight against clamping jaw 1 and
Into the cylindricality column structure other end, positioner can keep mandrel 3 and external member axial restraint to position, each clamping jaw 1
The seamed edge being mutually butted is provided with broached-tooth design 4, and the folder for clamping drill bit is formed between each seamed edge with broached-tooth design 4
Face is held, elastic component can give each clamping jaw 1 to provide the elasticity tension kept to being scattered away from axis direction, and the electric drill chuck makes
Electric drill head is inserted into the grasping part formed among each clamping jaw 1 by the used time, is then operated mandrel 3 and it is slid axially and holds out against
Each other end end face of clamping jaw 1, each clamping jaw 1 is synchronous to be slided to external member one end, in tapered cylinders lateral wall and external member madial wall
Cone match under, each clamping jaw 1 overcomes the elasticity of elastomer 2 to gather to axis direction, and then each clamps what is docked mutually
Broached-tooth design 4 on seamed edge kills electric drill head periphery surface, can now operate electric drill, electric drill by broached-tooth design 4 tightly
Bite, the situation that drill bit is relatively rotated, come off with chuck will not occur, clamping is stable.
The quantity of clamping jaw 1 is three, naturally it is also possible to is more.
The radial section of clamping jaw 1 is in sector structure.
Each clamping jaw 1, which is located in the side wall of the seamed edge both sides with sawtooth, is respectively equipped with a blind hole 5, and adjacent two clamping jaw
The position face of blind hole 5 in the side wall of 1 splicing face, the both ends in elastic component elastic telescopic direction are inserted in connected clamping jaw 1 respectively
In two blind holes 5 of position face, by opening up blind hole 5 in chuck side wall, elastic component both ends are plugged in blind hole 5, it is real
Existing chuck is directed away from the elastic holding force of axis direction motion, can also be in the side wall of the adjacent face of two clamping jaw 1 in addition
The magnet of like pole is set, above-mentioned function can also be realized.
The elastic component is spring.
The external member includes overcoat 6 and tail sleeve 7, and the tail sleeve 7 is fixedly installed in the big one end of the diameter of overcoat 6, and mandrel 3 is pacified
Loaded in tail sleeve 7, by overcoat 6 and the Split type structure of tail sleeve 7, it is easy to the assembling of clamping jaw 1 and external member.
The overcoat 6 is connected through a screw thread with tail sleeve 7, naturally it is also possible to is riveting or is connected or welded by pin.
Described one end of mandrel 3 is bolt structure 8, and the other end is the foot piece 9 of the non-circular column structure for connection, mandrel
The stud of 3 one end is connected with the screwed hole in tail sleeve 7 by helicitic texture, and mandrel 3 is realized in axial sliding by bolt structure 8
Meanwhile its rock-steady structure for keeping being fixedly connected at an arbitrary position with external member is also achieved, avoid and be further provided with positioner,
And it is easy to operate, will not automatic backing, the one end of mandrel 3 can also be cylinder or gas spring structure in addition, the other end of mandrel 3 it is non-
Circular cylinder structure can be hexagonal stern construction.
The outside of the overcoat 6 and the outside of tail sleeve 7 are all provided with irregular decorative pattern, are easy to manually operated, avoid skidding.
Pad is additionally provided with, the cylindricality column structure that pad is closely located in the one end of mandrel 3 and is spliced by clamping jaw 1 is another
Between end, the pad external diameter is more than the grasping part internal diameter formed between clamping jaw 1, and expand mandrel 3 by pad connects with clamping jaw 1
Surface size is touched, surface mandrel 3 holds out against failure when clamping jaw 1 extends out to a certain extent, while it is excessively thick to avoid mandrel 3 from making
It is strong, reduce cost.
Claims (10)
- A kind of 1. electric drill chuck, it is characterised in that：Including clamping jaw (1), elastomer (2), external member, mandrel (3) and positioner, extremely Few three clamping jaws are spliced to form the tapered cylinders structure that one end external diameter is less than other end external diameter, formed on the inside of external member one end with Matching taper surface, what the tapered cylinders structure that each clamping jaw is spliced can axially slide setpoint distance is inserted in external member On the inside of one end, what mandrel can axially move be inserted in and on the inside of the external member other end, and mandrel one end is spliced tight against clamping jaw all the time The cylindricality column structure other end formed, positioner can keep mandrel to be positioned with external member axial restraint, each clamping jaw The seamed edge being mutually butted is provided with broached-tooth design (4), is formed between each seamed edge with broached-tooth design for clamping drill bit Clamping face, elastic component can give each clamping jaw to provide the elasticity tension kept to being scattered away from axis direction.
- 2. electric drill chuck according to claim 1, it is characterised in that：The clamping jaw quantity is three.
- 3. electric drill chuck according to claim 2, it is characterised in that：The clamping jaw radial section is in sector structure.
- 4. electric drill chuck according to claim 2, it is characterised in that：Each clamping jaw is located at the seamed edge both sides with sawtooth Side wall on be respectively equipped with a blind hole (5), and the blind hole position face in the side wall of adjacent two clamping jaw splicing face, elastic component bullet The both ends of property telescopic direction are inserted in two blind holes of connected jaw position face respectively.
- 5. electric drill chuck according to claim 2, it is characterised in that：The elastic component is spring.
- 6. electric drill chuck according to claim 1, it is characterised in that：The external member includes overcoat (6) and tail sleeve (7), institute State tail sleeve and be fixedly installed in the big one end of overcoat diameter, mandrel is installed in tail sleeve.
- 7. electric drill chuck according to claim 6, it is characterised in that：The overcoat is connected through a screw thread with tail sleeve.
- 8. electric drill chuck according to claim 1, it is characterised in that：Described mandrel one end is bolt structure (8), the other end For the foot piece (9) of the non-circular column structure for connection, the screwed hole in the stud and tail sleeve of mandrel one end passes through screw thread knot Structure connects.
- 9. electric drill chuck according to claim 6, it is characterised in that：Bumps are equipped with the outside of the overcoat and on the outside of tail sleeve Decorative pattern.
- 10. electric drill chuck according to claim 1, it is characterised in that：Pad is additionally provided with, pad is closely located in mandrel one Between end and the cylindricality column structure other end being spliced by clamping jaw, the pad external diameter is more than the clamping formed between clamping jaw Space internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720461927.4U CN206811191U (en) | 2017-04-28 | 2017-04-28 | Electric drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720461927.4U CN206811191U (en) | 2017-04-28 | 2017-04-28 | Electric drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206811191U true CN206811191U (en) | 2017-12-29 |
Family
ID=60753856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720461927.4U Active CN206811191U (en) | 2017-04-28 | 2017-04-28 | Electric drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206811191U (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 |
-
2017
- 2017-04-28 CN CN201720461927.4U patent/CN206811191U/en active Active
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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| GR01 | Patent grant | ||
| GR01 | Patent grant |