CN209303749U - A kind of New type bit holder - Google Patents
A kind of New type bit holder Download PDFInfo
- Publication number
- CN209303749U CN209303749U CN201821487596.2U CN201821487596U CN209303749U CN 209303749 U CN209303749 U CN 209303749U CN 201821487596 U CN201821487596 U CN 201821487596U CN 209303749 U CN209303749 U CN 209303749U
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- CN
- China
- Prior art keywords
- steel ball
- nut
- rotary sleeve
- fence
- new type
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Abstract
The utility model provides a kind of New type bit holder, and the steel ball of the back pressure generated when formed between nut and support construction by drill chuck work pushes structure, and the steel ball is pushed outward；The circle that the nut or the component being fixedly connected with nut setting are in circle steel ball periphery can deform outward and the fence that inwardly recycles or the fence that can be deformed outward and inwardly recycle enclosed less than one, the fence have by position that steel ball push against and after the fence deform outward and rotary sleeve or and the position of component cooperation that is fixedly connected with rotary sleeve, the face and rotary sleeve or between the component that is fixedly connected with rotary sleeve with gap and the gap location is in the deformation range of the fence.The utility model structure is simple, can play to rotary sleeve on the basis of the original structure of drill chuck and resist inertia anti-loose effect, so that drill chuck is able to maintain original working condition in boring 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, once there is inertia motion, rotary sleeve is possible to loosen because of reasons such as inertia, and drill bit is caused to loosen or the locking of drill chuck
State failure.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of New type bit holders, can be at work to rotary sleeve
It plays and resists inertia anti-loose effect.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,
It is lined with a circle steel ball around drill body at the rear of nut, the rear of the circle steel ball is provided with support construction；Its feature exists
The steel ball of the back pressure generated when formed between the nut and the support construction by drill chuck work pushes structure, makes
Obtaining the steel ball can push outward；The nut or the component being fixedly connected with nut setting are in the circle steel ball periphery
One circle can be deformed outward with the fence inwardly recycled or less than the fence that can be deformed outward and inwardly recycle of a circle, the fence
With the position pushed against by steel ball the fence can also be had after being pushed by steel ball with deformation, the fence outward
After the fence deforms outward and rotary sleeve or and be fixedly connected with rotary sleeve component cooperation outside left, the outside portion
Position and rotary sleeve have gap and the gap location between the component that is fixedly connected with rotary sleeve when drill chuck does not work
In the outside deformation range of the fence.
Further, it is described push structure include nut rear end face setting the inclined-plane being inclined outwardly forward or
The inclined-plane of the support construction being inclined outwardly backward.Further, on washer, washer setting exists the circle steel ball pad
On step in the middle part of drill body, the outer corners of the drill body middle bench are processed removal, and the outside of the washer exceeds and hangs
Sky is in the middle bench outer corners for being processed removal.
Further, the range of choice of the support construction includes the washer that steel ball rear is arranged in, the platform in the middle part of drill body
Rank.
Further, the steel ball wraps up bearing grease.
Further, the fence is arranged in the rear portion for the metallic sheath connecting with nut.
Further, there is unfilled corner on the outside of the rear end of the nut and constitute described one position limiting structure for enclosing steel ball.
Further, the circle steel ball pad has unfilled corner on washer, on the outside of the rear end of the nut and constitutes described
The position limiting structure of one circle steel ball, the outer corners of the drill body middle bench are processed removal, and the outside of the washer is beyond simultaneously
It is suspended on the middle bench outer corners for being processed removal.Further, the rear end face of nut does not have and is inclined outwardly forward
Inclined-plane, washer do not have the inclined-plane that is inclined outwardly backward.
Further, described and rotary sleeve or and be fixedly connected with rotary sleeve component cooperation position range of choice packet
Face, tooth are included, the range of choice in the face includes smooth surface, hair side, and the hair side, which can be surface, has regular line or irregular grain
Face, rough surface etc..
Due to using the technical solution of the utility model, the utility model structure is simple, can be in original knot of drill chuck
On the basis of structure, rotary sleeve is played and resists inertia anti-loose effect, so that drill chuck is able to maintain original work shape in boring work
State.
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 a is the schematic diagram of nut in the utility model embodiment 1.
Fig. 3 b is the main view of nut in the utility model embodiment 1.
Fig. 4 is the schematic diagram of metallic sheath in the utility model embodiment 1.
Fig. 5 is the cross-sectional view of the utility model embodiment 2.
Fig. 6 is the schematic diagram of 2 middle washer of the utility model embodiment.
Fig. 7 is the cross-sectional view of the utility model embodiment 3.
Fig. 8 is the schematic diagram of drill body in the utility model embodiment 3.
Fig. 9 is the cross-sectional view of the utility model embodiment 4.
Figure 10 is the explosive view of the utility model embodiment 4.
Figure 11 is the cross-sectional view of the utility model embodiment 5.
Figure 12 is the cross-sectional view of the utility model embodiment 6.
Figure 13 is the schematic diagram of drill body in the utility model embodiment 6.
Specific embodiment
Embodiment 1, referring to attached drawing 1-4.
Drill chuck provided by the utility model, including rotary sleeve 1, drill body 5, nut 2 and clamping jaw 6, nut 2 and clamping jaw 6
It is threadedly coupled, metallic sheath 11 is inlaid in rotary sleeve 1, the packet of metallic sheath 11 is outer in nut 2 and is interference fitted connection, institute with nut 2
It states drill body and inclined clamping jaw hole 51 is set, clamping jaw 6 passes through clamping jaw hole 51, can slide before and after clamping jaw hole 51 under the driving of nut 2
It is dynamic.
Metallic sheath 11 is connected outside nut 2, rotary sleeve 1 is connected by keyway cooperation and nut 2 or metallic sheath 11.
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, in middle bench
On be provided with washer 4, they constitute the support construction at steel ball rear.The steel ball 3 can wrap up bearing grease.
The inclined-plane 21 being inclined outwardly forward, the inclined-plane 21 and the support construction shape is arranged in the rear end face of the nut 2
Extension mouth is circularized, nut will receive back pressure when drill chuck works, which can push outward steel ball.
The circle that the rear portion setting of the metallic sheath 11 is in 3 periphery of circle steel ball can be deformed outward and inwardly be recycled
Fence 8, the fence 8 can be used lengthens metallic sheath 11 backward, is then formed again in the mode that slot is cut at rear portion.The fence
8 barrier item can deform outward to a certain degree outward by steel ball outwardly against thrust, and crowded outward at this
After pressing thrust to disappear, and it can inwardly restore to recycle.
The fence have by position 81 that steel ball pushes against and after the fence deforms outward and rotary sleeve or and with
The face 82 for the component cooperation that rotary sleeve is fixedly connected, has gap when drill chuck does not work between the face 82 and rotary sleeve 1
100 and the gap 100 be in the outside deformation range of the fence 8 so that fence energy after being pushed by steel ball
It deforms and cooperates with rotary sleeve 1 outward.The face 82 can be the smooth surface either hair side with tooth, line.
When drill chuck is when punching forward, nut 2 will receive back pressure, and above-mentioned annular expansion mouth can push out steel ball
It squeezes, enables the steel ball to push the fence 8 outward, lead to its a degree of outside deformation, the deformation is so that fence 8
Lateral surface 82 and rotary sleeve jam-packed, and when inertia occurs, the effect of positioning stop is played to rotary sleeve, by simple effective
Mode, to rotary sleeve play resist inertia anti-loose effect so that drill chuck is able to maintain original working condition in boring work.
The one circle steel ball 3 is also possible to indirectly push against to the pushing and pressing of fence 8, for example the circle steel ball 3 is in modeling
Expect in ring stand, plastics ring stand itself can be expanded to a certain degree outward by steel ball outwardly against thrust
Deformation, and after this disappears outwardly against thrust, and can inwardly restore to recycle, so as to indirect to fence 8 by the ring stand
Pushing and pressing.
The nut 2 plays limit work in the front of nut 2 by the equal components of body or rotary sleeve 1 for being fixed on 5 front of drill body
With.
Nut 2 is also possible to by the front cell wall of the nut groove at 5 middle part of drill body to nut in its position-limiting action of front.Spiral shell
Mother is made of two halfbodies, and during installation, two halfbodies are firstly placed in the nut groove on drill body, then pass through the mistake with metallic sheath 11
It is full of mating connection, two halfbodies is connected into entire nut 2.Rotary sleeve 1 is connected by keyway cooperation and nut 2 or metallic sheath 11
It connects.
In the axial direction, rotary sleeve can cover at fence 8, can not also cover the position, and be connected by fixing with rotary sleeve
The component connect, which is arranged on the outside of fence, to be cooperated.
Embodiment 2, referring to Fig. 5-6.
In the present embodiment, the inclined-plane 41 being inclined outwardly backward is arranged in washer 4.Nut 2 can be in setting embodiment 1
Inclined-plane 21 is not provided with the inclined-plane.The other structures and embodiment 1 of the present embodiment are identical, in figures 5-6, with 1 phase of embodiment
Same component uses drawing reference numeral identical with Fig. 1-4, and details are not described herein.
The present embodiment can obtain technical effect acquired by embodiment 1.
Embodiment 3, referring to Fig. 7-8
In the present embodiment, the outer corners of the middle bench 50 of the drill body 5 are processed removal, so that washer 4 is in
There are more overhanging portions on portion's step 50, when drill chuck work, when punching forward, nut 2 will receive back pressure, so that
Steel ball can also have washer to be squeezed backward, and washer is had to a certain degree using the edge of the middle bench 50 with unfilled corner 53 as fulcrum
It is recoverable be inclined outwardly deformation backward, thus with nut back end face formed extension mouth formula steel ball push structure, to steel ball 3
It pushes outward, enables the steel ball 3 to push the deformation outward of fence 8 outward, the deformation is so that its lateral surface 82 and rotation
Jam-packed is covered, and plays the technical effect of embodiment 1.
For the present embodiment example, the rear end face of nut 2 does not have the inclined-plane being inclined outwardly forward, and washer 4 does not have
The inclined-plane being inclined outwardly backward.There is unfilled corner on the outside of the rear end of the nut 2 and constitute described one position limiting structure 22 for enclosing steel ball.
The structure of the middle bench 50 is equally applicable to Examples 1 and 2, wherein the drill body 5 in Fig. 1-6 is set
The outer corners for being set to middle bench 50 are processed removal and (certainly, have been equipped in nut back end face and have been inclined outwardly forward
Inclined-plane or washer when being equipped with the inclined-plane being inclined outwardly backward, the outer corners of middle bench 50 can not also
It is processed removal)
The other structures and embodiment 1 of the present embodiment are identical, and in Fig. 7-8, component same as Example 1 is used
Drawing reference numeral identical with Fig. 1-4, details are not described herein.The present embodiment can obtain technical effect acquired by embodiment 1.
Embodiment 4, referring to Fig. 9-10.
The present embodiment substantially increases self-locking structure on the basis of embodiment 1.Pushing structure in the present embodiment
Identical with embodiment 1, details are not described herein, and in figures 9-10, component same as Example 1 uses identical with Fig. 1-4
Drawing reference numeral.
In the present embodiment, self-locking structure uses spring leaf 91 and the gear ring 92 with the lock end cooperation of spring leaf 91, tooth
On the parts such as the body that circle 92 may be provided on drill body 5, be fixedly connected with drill body 5 or position.Metallic sheath 11 is as in Example 1
It is interference fitted and connects with nut 2.Metallic sheath 11 extends connecting portion in its front, and the connecting portion includes connecting with spring leaf
The hole 111 connect and the slot 112(or key that are connect with rotary sleeve), spring leaf is connect by its middle part protrusion with hole 111, is rotated
The internal cam surface having and spring leaf cooperates of set makes drill chuck enter self-locking shape to control in spring leaf lock end insertion gear ring 92
State makes drill chuck enter unlocked state with gear ring is detached from, and rotary sleeve inner wall, which has, is unlocking shape with protrusion 911 in the middle part of spring leaf
The second link slot that the first link slot connected when state is connected in self-locking state.The rotary sleeve inner wall has and slot 112
The key (or slot) of (or key) cooperation should cooperate, that is, when drill chuck is in the unlocked state, rotary sleeve is logical with indexable interval is combined into
Cross the company of the connection relationship of the first link slot and middle part protrusion, the connection relationship of spring leaf and metallic sheath and metallic sheath and nut
Relationship is connect, nut rotation is driven, when drill chuck enters self-locking state, rotary sleeve turns over certain angle relative to metallic sheath, this
When, 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) in rotation direction
Upper contact, and nut rotation is driven by the connection relationship, and the company of the first link slot of rotary sleeve and spring leaf middle part protrusion at this time
The relationship of connecing is switched to the connection relationship of protrusion in the middle part of the second link slot and spring leaf, is formed and keeps self-locking shape when drill chuck work
The state locking effect of state.
The circle that the rear portion setting of the metallic sheath 11 is in 3 periphery of circle steel ball can be deformed outward and inwardly be recycled
Fence 8 structure is pushed using steel ball, to steel as previously mentioned, nut 2 will receive back pressure when drill chuck is when punching forward
Pearl 3 is pushed outward, and the steel ball 3 is enabled to push the deformation outward of the fence 8 outward, the deformation so that fence 8 lateral surface
82 with rotary sleeve jam-packed, and inertia occur when, to rotary sleeve play positioning stop effect, resistance inertia is played to rotary sleeve
Anti-loose effect, so that drill chuck is able to maintain original self-locking working condition in boring work.
As previously mentioned, nut 2 can by the equal components of body or rotary sleeve 1 for being fixed on 5 front of drill body in the front of nut 2
Position-limiting action.Nut is also possible to by the front cell wall of the nut groove at 5 middle part of drill body to nut in its position-limiting action of front.Spiral shell
Mother is made of two halfbodies, and during installation, two halfbodies are firstly placed in the nut groove on drill body, then pass through the mistake with metallic sheath 11
It is full of mating connection, two halfbodies is connected into entire nut 2.The aft bulkhead of the nut groove is the middle bench, attached drawing mark
Numbers 52 be the front bulkhead of nut groove.
Embodiment 5, referring to Fig.1 1.
The present embodiment substantially increases self-locking structure on the basis of embodiment 2.Pushing structure in the present embodiment
Identical with embodiment 2, self-locking structure and embodiment 4 are identical, and details are not described herein, in Figure 11, with embodiment 2,4 identical portions
Part uses identical drawing reference numeral.
Embodiment 6, referring to Fig.1 2,13.
The present embodiment substantially increases self-locking structure on the basis of embodiment 3.Pushing structure in the present embodiment
Identical with embodiment 3, self-locking structure and embodiment 4 are identical, and details are not described herein, in Figure 12, with embodiment 3,4 identical portions
Part uses identical drawing reference numeral.
Likewise, the structure of the middle bench 50 of embodiment 3,6 is equally applicable to embodiment 4 and 5, wherein Figure 10,
Drill body 5 in 11 be configured to middle bench 50 outer corners be processed removal (certainly, nut back end face by
It is provided with the inclined-plane being inclined outwardly forward or when washer has been equipped with the inclined-plane being inclined outwardly backward, middle bench
50 outer corners can not also be processed removal).
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 (10)
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, and the rear of the circle steel ball is provided with support construction；It is characterized in that
The steel ball of the back pressure generated when formed between the nut and the support construction by drill chuck work pushes structure, so that
The steel ball can be pushed outward；The nut or the component being fixedly connected with nut setting are in the one of the circle steel ball periphery
Circle can be deformed outward with the fence inwardly recycled or less than the fence that can be deformed outward and inwardly recycle of a circle, the fence tool
There is the position by steel ball pushing and pressing and the fence can and be deformed outward after being pushed by steel ball, the fence also have
After the fence deforms outward and the outside left of rotary sleeve cooperation or and the component cooperation that is fixedly connected with rotary sleeve it is outer
Side, between the outside left and rotary sleeve when drill chuck does not work have gap, alternatively, the outside left and with
There is between the component that rotary sleeve is fixedly connected when drill chuck does not work gap, outside change of the gap location in the fence
Within the scope of shape.
2. a kind of New type bit holder as described in claim 1, it is characterised in that described to push the rear end face that structure includes nut
The inclined-plane being inclined outwardly backward on the inclined-plane being inclined outwardly forward or the support construction that are arranged.
3. a kind of New type bit holder as described in claim 1, it is characterised in that the range of choice of the support construction includes setting
Set the step in the middle part of the washer, drill body at steel ball rear.
4. a kind of New type bit holder as described in claim 1, it is characterised in that the steel ball wraps up bearing grease.
5. a kind of New type bit holder as described in claim 1, it is characterised in that the rear portion for the metallic sheath connecting with nut is arranged
The fence.
6. a kind of New type bit holder as described in claim 1, it is characterised in that there is unfilled corner on the outside of the rear end of the nut and
Constitute the position limiting structure of the circle steel ball.
7. a kind of New type bit holder as claimed in claim 3, it is characterised in that the circle steel ball pad is on washer, the spiral shell
There is unfilled corner on the outside of female rear end and constitute described one position limiting structure for enclosing steel ball, the outer corners quilt of the drill body middle bench
Processing removal, the outside of the washer exceed and are suspended on the middle bench outer corners for being processed removal.
8. a kind of New type bit holder as claimed in claim 7, it is characterised in that the rear end face of nut, which does not have, to lean outward forward
Oblique inclined-plane, washer do not have the inclined-plane being inclined outwardly backward.
9. a kind of New type bit holder as claimed in claim 2, it is characterised in that on washer, washer is set the circle steel ball pad
It sets on the step in the middle part of drill body, the outer corners of the drill body middle bench are processed removal, and the outside of the washer exceeds
And it is suspended on the middle bench outer corners for being processed removal.
10. a kind of New type bit holder as described in claim 1, it is characterised in that the selection at the position of described and rotary sleeve cooperation
And the selection at position of component cooperation that is described and being fixedly connected with rotary sleeve includes face, tooth, the face includes smooth surface, hair
Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821487596.2U CN209303749U (en) | 2018-09-12 | 2018-09-12 | A kind of New type bit holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821487596.2U CN209303749U (en) | 2018-09-12 | 2018-09-12 | A kind of New type bit holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209303749U true CN209303749U (en) | 2019-08-27 |
Family
ID=67669945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821487596.2U Active CN209303749U (en) | 2018-09-12 | 2018-09-12 | A kind of New type bit holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209303749U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110893473A (en) * | 2018-09-12 | 2020-03-20 | 台州三锦工业机器有限公司 | Novel drill chuck |
-
2018
- 2018-09-12 CN CN201821487596.2U patent/CN209303749U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110893473A (en) * | 2018-09-12 | 2020-03-20 | 台州三锦工业机器有限公司 | Novel drill chuck |
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