CN207402136U - A kind of precision bit of drill chuck structure - Google Patents
A kind of precision bit of drill chuck structure Download PDFInfo
- Publication number
- CN207402136U CN207402136U CN201721393014.XU CN201721393014U CN207402136U CN 207402136 U CN207402136 U CN 207402136U CN 201721393014 U CN201721393014 U CN 201721393014U CN 207402136 U CN207402136 U CN 207402136U
- Authority
- CN
- China
- Prior art keywords
- mandrel
- main body
- pull rod
- cone shaped
- sliding slot
- 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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- Gripping On Spindles (AREA)
Abstract
The utility model discloses a kind of precision bit of drill chuck structures, including main body, the front end of main body is provided with to install the cone shaped body of claw, the surface of cone shaped body, which is provided with, to be uniformly distributed circumferentially, the sliding slot extended along cone shaped body surface, being slidably installed in each sliding slot, there are one claws, the end of each claw is connected in the front end of pull rod, the rear end of pull rod is provided with external screw thread, the front end of mandrel is provided with internal thread hole, the rear end of pull rod is connected through a screw thread mandrel, the rear end of body is provided with to install mandrel, connect the cylinder cavity of the cone shaped body, mandrel is rotatable to be connected with main body.The beneficial effects of the utility model are：Sliding slot and main body is integrated and be the structure being closed, the precision and rigidity of sliding slot are improved, makes 3 claws more synchronous consistent in axially and radially moving.
Description
Technical field
The utility model is related to drill bit clamping device technical fields, particularly a kind of precision bit of drill chuck structure.
Background technology
The structure of conventional drill collet includes main body and claw at present, and the face that main body coordinates with claw is taper surface, so as to
The outer surface of claw is squeezed by taper surface, forms the /V to claw.This structure, the movement of claw fully rely on taper surface
Extruding, multiple claw motion synchronicities are poor, clamping stability do not ensure.
Utility model content
The purpose of the utility model is to overcome the shortcomings that the prior art, provide a kind of precision bit of drill chuck structure.
The purpose of this utility model is achieved through the following technical solutions：A kind of precision bit of drill chuck structure, including main body,
The front end of main body is provided with to install the cone shaped body of claw, and the surface of cone shaped body, which is provided with, to be uniformly distributed circumferentially, along tapered
The sliding slot of chamber surface extension, is slidably installed in each sliding slot there are one claw, the end of each claw is connected in pull rod
Front end, the rear end of pull rod are provided with external screw thread, and the front end of mandrel is provided with internal thread hole, and the rear end of pull rod is connected through a screw thread core
Axis, the rear end of body are provided with to install mandrel, the cylinder cavity of the connection cone shaped body, and mandrel is rotatable to be connected with main body
It connects.
Preferably, the outer cover of the main body is equipped with housing.
Preferably, the pull rod is circumferentially fixed with respect to claw, so as to the circumferential movement of claw limitation pull rod, passes through rotation
Main body can drive pull rod to rotate, and so as to which pull rod is by being threaded into or screwing out mandrel, and then realize that pull rod circumferentially stretches, from
And claw is driven to skid off or withdraw along sliding slot.
The utility model has the following advantages：
The utility model is integrated and be the structure being closed by sliding slot and main body, improves the precision and rigidity of sliding slot,
Make 3 claws more synchronous consistent in axially and radially moving.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure, 1- main bodys, 2- claws, 3- sliding slots, 4- pull rods, 5- mandrels, 6- housings.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of precision bit of drill chuck structure, including main body 1, the front end of main body 1 is provided with for installation card
The cone shaped body of pawl 2, the surface of cone shaped body are provided with the sliding slot 3 for being uniformly distributed circumferentially, extending along cone shaped body surface, each sliding slot
It is slidably installed in 3 there are one claw 2, the end of each claw 2 is connected in the front end of pull rod 4, and the rear end of pull rod 4 is provided with
External screw thread, the front end of mandrel 5 are provided with internal thread hole, and the rear end of pull rod 4 is connected through a screw thread mandrel 5, and the rear end of body is set
Installation mandrel 5, the cylinder cavity of the connection cone shaped body are useful for, mandrel 5 is rotatable to be connected with main body 1.
Preferably, the outer cover of the main body 1 is equipped with housing 6.
Preferably, the pull rod 4 is circumferentially fixed with respect to claw 2, so as to which claw 2 limits the circumferential movement of pull rod 4, passes through
Rotating body 1 can drive pull rod 4 to rotate, and so as to which pull rod 4 is by being threaded into or screwing out mandrel 5, and then realize pull rod 4 along week
To stretching, so as to which claw 2 be driven to skid off or withdraw along sliding slot 3.
The utility model by sliding slot 3 and main body 1 it is integrated and be closed structure, improve sliding slot 3 precision and just
Property, make 3 claws more synchronous consistent in axially and radially moving.
Claims (3)
1. a kind of precision bit of drill chuck structure, it is characterised in that：Including main body（1）, main body（1）Front end be provided with to install
Claw（2）Cone shaped body, the surface of cone shaped body be provided be uniformly distributed circumferentially, along cone shaped body surface extend sliding slot（3）, often
A sliding slot（3）Inside being slidably installed, there are one claws（2）, each claw（2）End be connected in pull rod（4）Front end, draw
Bar（4）Rear end be provided with external screw thread, mandrel（5）Front end be provided with internal thread hole, pull rod（4）Rear end be connected through a screw thread
Mandrel（5）, the rear end of body is provided with to install mandrel（5）, the connection cone shaped body cylinder cavity, mandrel（5）It can revolve
Turn and main body（1）Connection.
2. a kind of precision bit of drill chuck structure according to claim 1, it is characterised in that：The main body（1）Outside
It is set with housing（6）.
3. a kind of precision bit of drill chuck structure according to claim 1, it is characterised in that：The pull rod（4）Opposite card
Pawl（2）It is circumferentially fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721393014.XU CN207402136U (en) | 2017-10-26 | 2017-10-26 | A kind of precision bit of drill chuck structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721393014.XU CN207402136U (en) | 2017-10-26 | 2017-10-26 | A kind of precision bit of drill chuck structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207402136U true CN207402136U (en) | 2018-05-25 |
Family
ID=62408892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721393014.XU Active CN207402136U (en) | 2017-10-26 | 2017-10-26 | A kind of precision bit of drill chuck structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207402136U (en) |
-
2017
- 2017-10-26 CN CN201721393014.XU patent/CN207402136U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |