CN209077832U - A kind of New type bit holder - Google Patents
A kind of New type bit holder Download PDFInfo
- Publication number
- CN209077832U CN209077832U CN201821624730.9U CN201821624730U CN209077832U CN 209077832 U CN209077832 U CN 209077832U CN 201821624730 U CN201821624730 U CN 201821624730U CN 209077832 U CN209077832 U CN 209077832U
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- nut
- clamping jaw
- steel ball
- drill
- drill body
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Abstract
The utility model provides a kind of novel drill chuck, including rotary sleeve, drill body, nut and clamping jaw, nut and clamping jaw are threadedly coupled, rotary sleeve is connected with nut directly or by connection structure, the drill body is arranged inclined clamping jaw hole and slides back and forth for clamping jaw along clamping jaw hole, is lined with a circle steel ball around drill body at the rear of nut；It is equipped with the energy storage support construction that can be deformed and restore between nut and drill body, for push nut forward, increases the screw thread engagement force of nut and clamping jaw and buffering is provided, to prevent from loosening.The utility model structure is simple, no matter for common hand fastening drill clutch or having the drill chuck of self-locking function, the adverse effect for coping with and clamping drill bit to drill chuck caused by many reasons, maintain the lock status, significantly improves the performance of drill chuck, prevents from loosening generation in punching work.
Description
Technical field
The utility model relates to drill chuck more particularly to hand fastening drill clutch.
Background technique
Drill body, clamping jaw, nut are equipped in drill chuck, nut and clamping jaw are threadedly coupled, rotary sleeve is set in hand fastening drill clutch,
Rotary sleeve is connected with nut directly or by connection structure, operates rotary sleeve by hand, rotating nuts are to drive clamping jaw forward
Movement moves backward and clamping jaw is made to clamp or loosen drill bit.In actual use, when in clamping drill bit progress boring work
When, it is possible to will lead to nut there are many reason and reversely loosens, eventually lead to clamping jaw and drill bit is loosened or the locking shape of drill chuck
State failure.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of novel drill chucks, can increase nut and clamping jaw
Screw thread engagement force and provide buffering, to prevent from loosening.For this purpose, the utility model uses following technical scheme:
A kind of New type bit holder, including rotary sleeve, drill body, nut and clamping jaw, nut and clamping jaw are threadedly coupled, rotary sleeve and
Nut is connected directly or by connection structure, and the drill body is arranged inclined clamping jaw hole and slides back and forth for clamping jaw along clamping jaw hole,
A circle steel ball is lined with around drill body at the rear of nut；It is characterized in that being equipped between nut and drill body can deform and restore
Energy storage support construction increase the screw thread engagement force of nut and clamping jaw for push nut forward and buffering be provided, to prevent pine
It is de-.
Further, metal washer is set at the rear of the circle steel ball, the energy storage support construction includes the gold
Belong to washer, the metal washer is provided with supporting surface and forward curvature with the cooperation of the support structure at its rear, to antecurvature
Pars convoluta includes steel ball support portion, and the circle steel ball pad is on the steel ball support portion.
Further, the prone steel ball support portion is in the periphery of the supporting surface.
Further, the supporting surface is to cooperate with drill body middle bench.
Further, at least most of overhanging of the forward curvature is in the drill body.
Further, the metal washer is fixedly connected with drill body.
Further, quoit is set between a circle steel ball and nut, and the energy storage support construction includes described
Quoit, the quoit are provided with the supporting surface of holding nut and bend backward portion, and the portion of bending backward includes steel
Pearl service portion, the circle steel ball cooperate with the steel ball service portion and support to it.
Further, the recurvate steel ball support portion is in the periphery of the supporting surface.
Further, the supporting surface is to cooperate with nut back end face.
Due to using the technical solution of the utility model, the utility model structure is simple, no matter for common hand-tight drill point
Head still has the drill chuck of self-locking function, copes with caused by many reasons to drill chuck clamping drill bit, holding locking shape
The adverse effect of state significantly improves the performance of drill chuck, prevents from loosening generation in punching work.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model embodiment 1.
Fig. 2 is the explosive view of the utility model embodiment 1.
Fig. 3 is the main view of 1 washer of the utility model embodiment.
Fig. 4 is the perspective view of 1 washer of the utility model embodiment.
Fig. 5 is that 1 washer of the utility model embodiment cooperates schematic diagram to the support of steel ball.
Fig. 6 is schematic diagram when 1 washer of the utility model embodiment uses another embodiment with steel ball support cooperation.
Fig. 7 is the cross-sectional view of the utility model embodiment 2.
Fig. 8 is the perspective view of 2 washer of the utility model embodiment.
Fig. 9 is that the support of 2 quoit of the utility model embodiment and steel ball cooperates schematic diagram.
Figure 10 is the cross-sectional view of the utility model embodiment 3.
Figure 11 is the cross-sectional view of the utility model embodiment 4.
Figure 12 is the cross-sectional view of the utility model embodiment 5.
Figure 13 is the explosive view of the utility model embodiment 5.
Specific embodiment
Embodiment 1, referring to attached drawing 1,2.
Drill chuck provided by the utility model, including rotary sleeve 1, drill body 5, nut 2 and three clamping jaws 6, nut 2 and three
Root clamping jaw 6 is threadedly coupled, and inclined clamping jaw hole 51 is arranged in the drill body 5, and clamping jaw 6 passes through clamping jaw hole 51, under the driving of nut 2
It can be slid back and forth along clamping jaw hole 51.It is lined with a circle steel ball 3 around drill body 5 at the rear of nut 2, drill body 5 is provided with middle bench
50, metal washer 4 is provided on middle bench, they constitute the support construction at steel ball rear.
The one circle steel ball 3 can be combined into parts of bearings with bearing bracket stand 30, can also be not provided with ring stand 30.The steel ball 3
Bearing grease can be wrapped up.
In the drill chuck of the present embodiment, it is also provided with self-locking structure.Self-locking structure uses spring leaf 91 and and spring leaf
The gear ring 92 of 91 lock end cooperation, gear ring 92 may be provided on drill body 5.Metallic sheath 11 is connected outside nut, metallic sheath 11 is before it
Connecting portion is extended in portion, and the connecting portion includes the hole 111 connecting with spring leaf and the slot 112 connecting with rotary sleeve
(or key), spring leaf are connect by its middle part protrusion with hole 111, and rotary sleeve inside has and the cam surface of spring leaf cooperation,
With control spring leaf lock end insertion gear ring 92 in make drill chuck enter self-locking state and be detached from gear ring and so that drill chuck is entered unlock
State, rotary sleeve inner wall has with the first link slot that protrusion 911 is connect when unlocked in the middle part of spring leaf and in self-locking shape
The second link slot connected when state.The rotary sleeve inner wall have and slot 112(or key) cooperation key (or slot), should be combined into turn
Interdigit is had a rest cooperation, that is, when drill chuck is in the unlocked state, rotary sleeve 1 passes through the connection of the first link slot and middle part protrusion 911
The connection relationship of relationship, the connection relationship of spring leaf 91 and metallic sheath 11 and metallic sheath 11 and nut 2 drives nut 2 to rotate,
Nut drives three clamping jaws 6 before clamping jaw hole and then clamps drill bit, and when drill chuck enters self-locking state, rotary sleeve 1 is opposite
Turn over certain angle in metallic sheath 11, at this point, the cell wall (or key) of slot 112 and rotary sleeve inner wall with slot 112(or key) cooperation
Key (or cell wall of slot) contacted in rotation direction, and drive nut 2 to rotate by the connection relationship, and rotary sleeve first at this time
The connection relationship of protrusion is switched to the connection relationship of protrusion in the middle part of the second link slot and spring leaf, shape in the middle part of link slot and spring leaf
At the state locking effect for keeping self-locking state when drill chuck works.
Be only exemplified by a kind of self-locking structure of drill chuck above, the self-locking structure of drill chuck there are also other set-up modes, than
Such as: on the settable body part being fixedly connected with drill body 5 of gear ring 92 or position；The position of spring leaf 91 can change；It bores
Nut groove is set in the middle part of body unlike the present embodiment, but fixing sleeve is set in front of drill body, in the middle part of fixing sleeve and drill body
Step 50 cooperated and play a part of limit nut 2.
The drill chuck is equipped with the energy storage support construction that can be deformed and restore between nut and drill body, in rotating nuts
When the work that driving clamping jaw clamps drill bit just starts, energy storage support construction is in original state at this time, and operator can relatively easily
Ground rotating nut.
Preferably, the energy storage support construction uses above-mentioned metal washer 4, and the metal washer 4 is preferably and drill body
It is fixedly connected, and it is relatively unrotatable, and the metal washer 4 is provided with the supporting surface 41 cooperated with drill body middle bench 50,
The periphery of supporting surface 41 is forward curvature 40, and the forward curvature includes steel ball support portion 42, and the circle steel ball 3 pads
On the steel ball support portion 42.The forward curvature 40 can bend to inclined-plane as the present embodiment Fig. 5, or such as Fig. 6
Cambered surface is bent to like that, the steel ball is just supported in inclined-plane or cambered surface.Or the forward curvature 40 is bent again, it is described
Steel ball support portion is in the curved position again.
More preferably, the diameter of metal washer 4 is bigger than the maximum gauge of drill body, and makes at least big portion of the forward curvature
Divide overhanging in the drill body.
Using position prone in forward curvature as energy reserve, drill chuck is pressing from both sides the energy storage support construction
Spin nut 2 such as is continued up in the side that driving clamping jaw travels forward after tight drill bit, nut 2 will receive bigger back pressure and oppress
The energy reserve deformation and energy storage of energy storage support construction is converted into potential energy and reaction forward, improves the engagement force of nut and clamping jaw,
And at work, nut continues the back pressure being subject to can be converted into raising nut and clamping jaw engagement force by energy reserve energy storage
Potential energy, also, when being impacted, moreover it is possible to play buffer function, avoid generating between nut and clamping jaw and loosen drill bit direction
On relative displacement or self-locking state failure, prevent from loosening.
After drill chuck stops punching work, after the back pressure that nut is subject to disappears, forward curvature returns recovery automatically
To initial state.
Embodiment 2, referring to attached drawing 7,8,9.
In the present embodiment, metal washer 4 is not as the energy storage support construction, a circle steel ball 3 and nut 2 it
Between quoit 7 is set, the energy storage support construction 7 includes the quoit 7, and the quoit sets 7 branch for being equipped with holding nut
Support face 71 and bend backward portion 70, the portion 70 that bends backward includes steel ball service portion 72, a circle steel ball 3 with it is described
Steel ball service portion 72 cooperates and supports to it.
The portion that bends backward can bend to inclined-plane as shown in the present embodiment attached drawing, or bend to cambered surface, described
Steel ball is just in the inclined-plane or cambered surface.Or the portion of bending backward is bent again, it is curved again that the steel ball service portion is in this
On bent position.
The energy storage support construction is being pressed from both sides using bending backward in portion recurvate position as energy reserve, drill chuck
Spin nut 2 such as is continued up in the side that driving clamping jaw travels forward after tight drill bit, nut 2 will receive bigger back pressure and oppress
The energy reserve deformation and energy storage of energy storage support construction is converted into potential energy and reaction forward, improves the engagement force of nut and clamping jaw,
And at work, nut continues the back pressure being subject to can be converted into raising nut and clamping jaw engagement force by energy reserve energy storage
Potential energy, also, when being impacted, moreover it is possible to play buffer function, avoid generating between nut and clamping jaw and loosen drill bit direction
On relative displacement or self-locking state failure, prevent from loosening.
After drill chuck stops punching work, after the back pressure that nut is subject to disappears, forward curvature returns recovery automatically
To initial state.
The other structures and embodiment 1 of the present embodiment are identical, and in figures 7-9, component same as Example 1 uses
Drawing reference numeral identical with Fig. 1-6, details are not described herein.
Embodiment 3, referring to Fig.1 0
In the present embodiment, the self-locking structure that is not provided in Examples 1 and 2.Metallic sheath 11 as nut set is embedded in rotation
In pivoted housing 1, the packet of metallic sheath 11 is outer in nut 2 and is interference fitted connection with nut 2,
Metallic sheath 11 can not also be embedded in rotary sleeve 1, connected by the connection relationships such as keyway cooperation and rotary sleeve 1
It connects.Nut 2 is made of two halfbodies, and during installation, two halfbodies are firstly placed in the nut groove on drill body, then passes through metallic sheath 11
Two halfbodies are connected into entire nut 2.The nut groove is by 52 structure of middle bench 50 and front cell wall on the drill body 5
At front cell wall 52 plays position-limiting action in the front of nut 2.
In the present embodiment, energy storage support construction uses the structure of embodiment 1.
Using position prone in forward curvature as energy reserve, drill chuck is pressing from both sides the energy storage support construction
Spin nut 2 such as is continued up in the side that driving clamping jaw travels forward after tight drill bit, nut 2 will receive bigger back pressure and oppress
The energy reserve deformation and energy storage of energy storage support construction is converted into potential energy and reaction forward, improves the engagement force of nut and clamping jaw,
And at work, nut continues the back pressure being subject to can be converted into raising nut and clamping jaw engagement force by energy reserve energy storage
Potential energy, also, when being impacted, moreover it is possible to play buffer function, avoid generating between nut and clamping jaw and loosen drill bit direction
On relative displacement, prevent from loosening.
After drill chuck stops punching work, after the back pressure that nut is subject to disappears, forward curvature returns recovery automatically
To initial state.
The other structures and embodiment 1 of the present embodiment are identical, and in figures 7-9, component same as Example 1 uses
Drawing reference numeral identical with Fig. 1-6, details are not described herein.
Embodiment 4, referring to attached drawing 11.
In the present embodiment, energy storage support construction uses the structure of embodiment 2.Other and embodiment 3 is identical.In Figure 11,
With embodiment 2,3 identical components, drawing reference numeral identical with Fig. 1-10 is used, details are not described herein.
Embodiment 5, referring to attached drawing 12,13.
Similar with embodiment 3,4, the present embodiment is also not provided with self-locking structure.Unlike embodiment 3,4, the present embodiment
Drill body 5 be not provided with front cell wall 52, nut 2 is no longer the component of Split assembled but this is as entirety.When assembly, nut 2
Be directly sleeved on outside drill body, then the components such as the body by being fixed on 5 front of drill body or rotary sleeve in the front of nut 2 limit make
With.It is by rotary sleeve 1 to being limited in front of nut for the present embodiment.Rotary sleeve 1 drives nut by keyway cooperation
2 rotations.
The energy storage support construction of the present embodiment uses the structure of embodiment 1,3 substantially, namely is arranged and bores in metal washer 4
The supporting surface 41 that body middle bench 50 cooperates is forward curvature 40 in the periphery of supporting surface 41, and the forward curvature includes
There is steel ball support portion 42, the circle pad of steel ball 3 is on the steel ball support portion 42.Further, in the outer of forward curvature
Side also has the accessory structure of metal washer 4, which is the nut positioning sleeve 43 of vertical bending, and nut positioning sleeve 43 is right
Nut 2 plays centralized positioning booster action.In addition, being additionally provided on the inside of the supporting surface 41 on washer 4 and the continuity of clamping jaw hole 50
Clamping jaw recessing groove 44.
The other structures and embodiment 1,3 of the present embodiment are identical.In Figure 11, with embodiment 1,3 identical components, use
Identical with Fig. 1-10 drawing reference numeral, details are not described herein.
The foregoing is merely the structure features of specific embodiment of the utility model, but the utility model to be not limited to
This, in the field of the utility model, made changes or modifications all cover practical new at this any those skilled in the art
Among the protection scope of type.
Claims (9)
1. a kind of New type bit holder, including rotary sleeve, drill body, nut and clamping jaw, nut and clamping jaw are threadedly coupled, rotary sleeve and spiral shell
Mother connects directly or by connection structure, and the drill body is arranged inclined clamping jaw hole and slides back and forth for clamping jaw along clamping jaw hole,
The rear of nut is lined with a circle steel ball around drill body；It is characterized in that being equipped between nut and drill body can deform and restore
Energy storage support construction increases the screw thread engagement force of nut and clamping jaw and provides buffering, to prevent from loosening for push nut forward.
2. a kind of New type bit holder as described in claim 1, it is characterised in that metal is arranged at the rear of the circle steel ball
Washer, the energy storage support construction include the metal washer, and the metal washer is provided with matches with the support structure at its rear
The supporting surface and forward curvature of conjunction, forward curvature include steel ball support portion, and the circle steel ball pad is in the steel ball
On support portion.
3. a kind of New type bit holder as claimed in claim 2, which is characterized in that the prone steel ball support portion is in
The periphery of the supporting surface.
4. a kind of New type bit holder as claimed in claim 2, which is characterized in that the supporting surface is to match with drill body middle bench
It closes.
5. a kind of New type bit holder as claimed in claim 2, which is characterized in that at least most of overhanging of forward curvature
In the drill body.
6. a kind of New type bit holder as claimed in claim 2, which is characterized in that the metal washer is fixedly connected with drill body.
7. a kind of New type bit holder as described in claim 1, it is characterised in that be arranged between a circle steel ball and nut
Quoit, the energy storage support construction include the quoit, the quoit be provided with holding nut supporting surface and to
Bending section afterwards, the portion of bending backward include steel ball service portion, and a circle steel ball and the steel ball service portion cooperate and right
It is supported.
8. a kind of New type bit holder as claimed in claim 7, which is characterized in that the recurvate steel ball support portion is in
The periphery of the supporting surface.
9. a kind of New type bit holder as claimed in claim 7, which is characterized in that the supporting surface is to match with nut back end face
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821624730.9U CN209077832U (en) | 2018-10-04 | 2018-10-04 | A kind of New type bit holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821624730.9U CN209077832U (en) | 2018-10-04 | 2018-10-04 | A kind of New type bit holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209077832U true CN209077832U (en) | 2019-07-09 |
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ID=67118476
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821624730.9U Active CN209077832U (en) | 2018-10-04 | 2018-10-04 | A kind of New type bit holder |
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| Country | Link |
|---|---|
| CN (1) | CN209077832U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158628A (en) * | 2018-10-04 | 2019-01-08 | 台州市益福机械制造有限公司 | A kind of New type bit holder |
-
2018
- 2018-10-04 CN CN201821624730.9U patent/CN209077832U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158628A (en) * | 2018-10-04 | 2019-01-08 | 台州市益福机械制造有限公司 | A kind of New type bit holder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190814 Address after: 318050 No. 200 Lunan Airport Road, Luqiao District, Taizhou City, Zhejiang Province Patentee after: Taizhou San Jin industrial machine Co., Ltd Address before: 317108, Zhejiang County, Taizhou Province three counties Pu dam town (Zhejiang three coastal industrial city) Patentee before: TAIZHOU YIFU MACHINERY MANUFACTURING CO., LTD. |
|
| TR01 | Transfer of patent right |