CN108788253A - Electric drill collet - Google Patents
Electric drill collet Download PDFInfo
- Publication number
- CN108788253A CN108788253A CN201710292029.5A CN201710292029A CN108788253A CN 108788253 A CN108788253 A CN 108788253A CN 201710292029 A CN201710292029 A CN 201710292029A CN 108788253 A CN108788253 A CN 108788253A
- Authority
- CN
- China
- Prior art keywords
- clamping jaw
- mandrel
- external member
- electric drill
- spliced
- 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.)
- Pending
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 4
- 239000000806 elastomer Substances 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/12—Adapters for drills or chucks; Tapered sleeves
Abstract
The invention discloses a kind of electric drill collets,Including clamping jaw,Elastomer,External member,Mandrel and positioning device,At least three clamping jaw is spliced to form the tapered cylinders structure that one end outer diameter is less than other end outer 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 inside,And the cylindricality column structure other end that mandrel one end is spliced tight against clamping jaw always,Positioning device can keep mandrel to be positioned with external member axial restraint,The seamed edge that each clamping jaw is mutually butted is equipped with broached-tooth design,The clamping face for drill bit to be clamped is formed between each seamed edge with broached-tooth design,Elastic component can give each clamping jaw to provide the elasticity tension kept to scattering far from axis direction,The configuration of the present invention is simple,It is easy to operate,Manufacturing cost is low,It is fixed to keep steady to drill jig.
Description
Technical field
The present invention relates to the technical field of hardware tool, particularly relates to a kind of electric drill collet.
Background technology
The clamping jaw of traditional electric drill collet is that the operation structure to be formed is connect 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, inconvenient, and the opposite 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 is easy to happen relatives rotation with clamping jaw, be also easy to cause rotary head damage and
It falls off.
Invention content
In order to overcome drawbacks described above, the present invention to provide a kind of electric drill collet, the gripping head structure of electric drill is simple, easy to operate,
To drill bit firm grip.
The present invention in order to solve its technical problem used by technical solution：A kind of electric drill collet, including clamping jaw, elasticity
Body, external member, mandrel and positioning device, at least three clamping jaw are spliced to form the taper that one end outer diameter is less than other end outer diameter
Column structure, external member one end inside form matching taper surface, and the tapered cylinders structure that each clamping jaw is spliced is axial
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 always, positioning device can keep mandrel with
External member axial restraint positions, the seamed edge that each clamping jaw is mutually butted is equipped with broached-tooth design, each with broached-tooth design
The clamping face for drill bit to be clamped is formed between seamed edge, elastic component can give each clamping jaw to provide and keep dissipating to far from axis direction
The elasticity tension opened.
As a further improvement on the present invention, the clamping jaw quantity is three.
As a further improvement on the present invention, the clamping jaw radial section is in sector structure.
As a further improvement on the present invention, each clamping jaw is located on the side wall of the seamed edge both sides with sawtooth and sets respectively
There are a blind hole, and the blind hole position face on the side wall of adjacent two clamping jaw splicing face, the both ends in elastic component elastic telescopic direction
It is inserted in respectively in two blind holes of connected jaw position face.
As a further improvement on the present invention, the elastic component is spring.
As a further improvement on the present invention, the external member includes housing and tail sleeve, and the tail sleeve is fixedly installed in housing
The big one end of diameter, mandrel are installed in tail sleeve.
As a further improvement on the present invention, the housing is connected through a screw thread with tail sleeve.
As a further improvement on the present invention, described mandrel one end is bolt structure, and the other end is for the not rounded of connection
The foot piece of shape column structure, the threaded hole in the stud and tail sleeve of mandrel one end are connected by helicitic texture.
As a further improvement on the present invention, it is all provided with irregular decorative pattern on the outside of the housing and on the outside of tail sleeve.
As a further improvement on the present invention, it is additionally provided with gasket, gasket is closely located in mandrel one end and is spliced by clamping jaw
Made of between the cylindricality column structure other end, the gasket outer diameter is more than the grasping part internal diameter formed between clamping jaw.
The beneficial effects of the invention are as follows：The present invention passes through sawtooth by the way that broached-tooth design is arranged on the seamed edge that clamping jaw docks
Structure realizes the occlusion to drill bit, it is ensured that secured clamping of the collet to drill bit avoids drill bit and using
It crosses because of torque and relatively rotates more than collet in the process, cause bit breakage, and borehole accuracy has been effectively ensured, the present invention is logical
It crosses and blind hole is set on the opposite side wall of clamping jaw, spring is installed in blind hole, pass through spring retaining clip pawl open configuration, structure letter
It is single, clamping jaw tilt slide guide sleeve is avoided, the configuration of the present invention is simple is easy to operate, and manufacturing cost is low, keeps steady to drill jig
It is fixed.
Description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the portions A-A sectional view in Fig. 1；
Fig. 3 is the clamping jaw stereogram of the present invention；
Fig. 4 is the clamping jaw front view of the present invention；
Fig. 5 is the housing front view of the present invention；
Fig. 6 is the mandrel stereogram of the present invention；
Fig. 7 is the tail sleeve stereogram of the present invention.
Specific implementation mode
Embodiment：A kind of electric drill collet, including clamping jaw 1, elastomer 2, external member, mandrel 3 and positioning device, described at least three
A clamping jaw 1 is spliced to form the tapered cylinders structure that one end outer diameter is less than other end outer diameter, is formed on the inside of external member one end therewith
The taper surface matched, what the tapered cylinders structure that each clamping jaw 1 is spliced can axially slide setpoint distance is inserted in external member one
End inside, mandrel 3 is axial being inserted in of can moving is on the inside of the external member other end, and 3 one end of mandrel is spliced tight against clamping jaw 1 always
Made of the cylindricality column structure other end, positioning device can keep mandrel 3 and external member axial restraint to position, each clamping jaw
1 seamed edge being mutually butted is equipped with broached-tooth design 4, is formed between each seamed edge with broached-tooth design 4 for drill bit to be clamped
Clamping face, elastic component can give each clamping jaw 1 to provide the elasticity tension kept to scattering far from axis direction, which exists
Electric drill head is inserted into when use in the grasping part formed among each clamping jaw 1, then operating mandrel 3 makes its top that slides axially
1 the other end face of tight each clamping jaw, each clamping jaw 1 is synchronized to be slided to external member one end, on the inside of tapered cylinders lateral wall and external member
Under the cone match of wall, each clamping jaw 1 overcomes the elasticity of elastomer 2 to gather to axis direction, and then each clamp is connected to each other
Seamed edge on broached-tooth design 4 kill electric drill head periphery surface, electric drill can be operated at this time, electric drill is tight by broached-tooth design 4
Tightly bite, will not there is a situation where drill bit and collets to relatively rotate, falls off, clamping is stablized.
1 quantity of the clamping jaw is three, naturally it is also possible to be more.
1 radial section of the clamping jaw is in sector structure.
Each clamping jaw 1, which is located on the side wall of the seamed edge both sides with sawtooth, is respectively equipped with a blind hole 5, and adjacent two clamping jaw
5 position face of blind hole on 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 on collet side wall, elastic component both ends are plugged in blind hole 5, it is real
Existing collet is directed away from the elastic holding force of axis direction movement, can also be on the side wall of adjacent two clamping jaws, 1 face in addition
The magnet of like pole is set, can also realize above-mentioned function.
The elastic component is spring.
The external member includes housing 6 and tail sleeve 7, and the tail sleeve 7 is fixedly installed in the big one end of 6 diameter of housing, and mandrel 3 is pacified
Loaded in tail sleeve 7, by the separate structure of housing 6 and tail sleeve 7, it is convenient for the assembling of clamping jaw 1 and external member.
The housing 6 is connected through a screw thread with tail sleeve 7, naturally it is also possible to is riveting or be connected or welded by pin.
3 one end of the mandrel 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 connect with the threaded hole in tail sleeve 7 by helicitic texture, and mandrel 3 is realized in axial sliding by bolt structure 8
Meanwhile also achieving it and being kept fixed the rock-steady structure connecting with external member at an arbitrary position, it avoids and is further provided with positioning device,
And it is easy to operate, will not automatic backing, 3 one end of mandrel can also be cylinder or gas spring structure in addition, 3 other end of mandrel it is non-
Circular cylinder structure can be hexagonal stern construction.
6 outside of the housing and 7 outside of tail sleeve are all provided with irregular decorative pattern, convenient for manual operation, avoid skidding.
It is additionally provided with gasket 8, the cylindricality column structure that gasket 8 is closely located in 3 one end of mandrel and is spliced by clamping jaw 1 is another
Between one end, 8 outer diameter of the gasket is more than the grasping part internal diameter formed between clamping jaw 1, expands mandrel 3 and folder by gasket 8
1 contact surface size of pawl, surface mandrel 3 holds out against failure when clamping jaw 1 extends out to a certain extent, while mandrel 3 being avoided to make
In sturdy, cost is reduced.
Claims (10)
1. a kind of electric drill collet, it is characterised in that：Including clamping jaw (1), elastomer (2), external member, mandrel (3) and positioning device, institute
It states at least three clamping jaws and is spliced to form the tapered cylinders structure that one end outer diameter is less than other end outer diameter, formed on the inside of external member one end
Matching taper surface, what the tapered cylinders structure that each clamping jaw is spliced can axially slide setpoint distance is inserted in set
On the inside of part one end, what mandrel can axially move be inserted in on the inside of the external member other end, and mandrel one end is spelled tight against clamping jaw always
The cylindricality column structure other end made of connecing, positioning device can keep mandrel to be positioned with external member axial restraint, each folder
The seamed edge that pawl is mutually butted is equipped with broached-tooth design (4), is formed between each seamed edge with broached-tooth design for drill bit to be clamped
Clamping face, elastic component can give each clamping jaw to provide the elasticity tension kept to scatter far from axis direction.
2. electric drill collet according to claim 1, it is characterised in that：The clamping jaw quantity is three.
3. electric drill collet according to claim 2, it is characterised in that：The clamping jaw radial section is in sector structure.
4. electric drill collet 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 on the side wall of adjacent two clamping jaw splicing face, elastic component bullet
The both ends of property telescopic direction are inserted in respectively in two blind holes of connected jaw position face.
5. electric drill collet according to claim 2, it is characterised in that：The elastic component is spring.
6. electric drill collet according to claim 1, it is characterised in that：The external member includes housing (6) and tail sleeve (7), institute
It states tail sleeve and is fixedly installed in the big one end of housing diameter, mandrel is installed in tail sleeve.
7. electric drill collet according to claim 1, it is characterised in that：The housing is connected through a screw thread with tail sleeve.
8. electric drill collet 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 threaded hole in the stud and tail sleeve of mandrel one end passes through screw thread knot
Structure connects.
9. electric drill collet according to claim 1, it is characterised in that：It is equipped with bumps on the outside of the housing and on the outside of tail sleeve
Decorative pattern.
10. electric drill collet according to claim 1, it is characterised in that：It is additionally provided with gasket (8), gasket is closely located in core
Between axis one end and the cylindricality column structure other end being spliced by clamping jaw, the gasket outer diameter, which is more than, to be formed between clamping jaw
Grasping part internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292029.5A CN108788253A (en) | 2017-04-28 | 2017-04-28 | Electric drill collet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292029.5A CN108788253A (en) | 2017-04-28 | 2017-04-28 | Electric drill collet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108788253A true CN108788253A (en) | 2018-11-13 |
Family
ID=64070076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710292029.5A Pending CN108788253A (en) | 2017-04-28 | 2017-04-28 | Electric drill collet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108788253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111805260A (en) * | 2020-08-01 | 2020-10-23 | 周凤妹 | Cutter clamping mechanism of numerically controlled fraise machine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2832369Y (en) * | 2005-09-26 | 2006-11-01 | 浙江三鸥机械股份有限公司 | Improved drill chuck pawl |
| CN201895098U (en) * | 2010-11-13 | 2011-07-13 | 浙江三鸥机械股份有限公司 | Drill chuck |
| US20140033510A1 (en) * | 2012-08-02 | 2014-02-06 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Device and method for reversibly gripping a bolt-shaped element, in particular a rivet mandrel |
| CN203863087U (en) * | 2014-04-21 | 2014-10-08 | 汇群工业有限公司 | Improved chuck structure |
| CN205702585U (en) * | 2016-04-29 | 2016-11-23 | 山东威达机械股份有限公司 | Chuck |
| US20170044851A1 (en) * | 2014-04-24 | 2017-02-16 | Atlas Copco Rock Drills Ab | Chuck for a drill head of a rotation drilling rig |
| CN206811191U (en) * | 2017-04-28 | 2017-12-29 | 昆山义成工具有限公司 | Electric drill chuck |
-
2017
- 2017-04-28 CN CN201710292029.5A patent/CN108788253A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2832369Y (en) * | 2005-09-26 | 2006-11-01 | 浙江三鸥机械股份有限公司 | Improved drill chuck pawl |
| CN201895098U (en) * | 2010-11-13 | 2011-07-13 | 浙江三鸥机械股份有限公司 | Drill chuck |
| US20140033510A1 (en) * | 2012-08-02 | 2014-02-06 | Richard Bergner Verbindungstechnik Gmbh & Co. Kg | Device and method for reversibly gripping a bolt-shaped element, in particular a rivet mandrel |
| CN203863087U (en) * | 2014-04-21 | 2014-10-08 | 汇群工业有限公司 | Improved chuck structure |
| US20170044851A1 (en) * | 2014-04-24 | 2017-02-16 | Atlas Copco Rock Drills Ab | Chuck for a drill head of a rotation drilling rig |
| CN205702585U (en) * | 2016-04-29 | 2016-11-23 | 山东威达机械股份有限公司 | Chuck |
| CN206811191U (en) * | 2017-04-28 | 2017-12-29 | 昆山义成工具有限公司 | Electric drill chuck |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111805260A (en) * | 2020-08-01 | 2020-10-23 | 周凤妹 | Cutter clamping mechanism of numerically controlled fraise machine |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |