CN108274051A - A kind of Self-locking drill-chuck - Google Patents
A kind of Self-locking drill-chuck Download PDFInfo
- Publication number
- CN108274051A CN108274051A CN201810139021.XA CN201810139021A CN108274051A CN 108274051 A CN108274051 A CN 108274051A CN 201810139021 A CN201810139021 A CN 201810139021A CN 108274051 A CN108274051 A CN 108274051A
- Authority
- CN
- China
- Prior art keywords
- self
- spring leaf
- drill
- chuck
- locking
- 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.)
- Granted
Links
- 210000002421 cell wall Anatomy 0.000 claims description 5
- 238000005381 potential energy Methods 0.000 claims description 2
- 238000005119 centrifugation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000035945 sensitivity Effects 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
-
- 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
- B23B51/123—Conical reduction sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/12—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for securing to a spindle in general
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The present invention provides a kind of Self-locking drill-chucks, in rotary sleeve, nut covers between spring leaf this three, nut set drives rotation without spring leaf by rotary sleeve, spring leaf is supported on nut and puts on and cover and rotate synchronously with nut, spring leaf carries the controlling position arranged side by side with lock end, stateful switching part is arranged in drill chuck, state switching part and rotary sleeve rotate synchronously and are provided with cam surface, cam surface and controlling position cooperation, in the unlocked state, spring leaf is set further to deform and the lock end disengaging tooth, in self-locking state, spring leaf is set so that lock end is inserted into the tooth by energy is released.No matter the nut of the present invention in clamping direction or loosens direction, in the whole process of rotation, is all directly driven without spring leaf by rotary sleeve, helps to improve feel and efficiency when clamp operation；And spring leaf only be responsible for self-locking function and can make it is normally closed, elastic force and centrifugation force direction on the contrary, the reliability of drill chuck self-locking structure can be greatly improved.
Description
Technical field
The present invention relates to a kind of Self-locking drill-chucks.
Background technology
In the prior art, drill body, clamping jaw, nut are equipped in drill chuck, by rotating nuts to drive clamping jaw to transport forward
It moves or moves backward and make drill point head clamping or loosen drilling tool.Self-locking structure is that drill chuck is at work in order to prevent in drill chuck
When the reaction force acts that are subject to by it and structure that drilling tool is loosened, generally by the component with spring leaf and be in brill
Tooth on body is coordinated.Current Self-locking drill-chuck, spring leaf not merely undertake self-locking function, and the nut of drill chuck is pressing from both sides
In the wholly or largely stroke of tight direction rotation, rotary sleeve is required for driving by spring leaf, and the burden of spring leaf is too big,
It is easy to cause the self-locking function premature failure of self-locking clamping chuck of drill bit.
Invention content
Technical problem to be solved by the invention is to provide a kind of Self-locking drill-chucks, can improve drill chuck self-locking structure
Reliability and feel and efficiency when helping to improve clamp operation.For this purpose, the present invention uses following technical scheme：
A kind of Self-locking drill-chuck, including rotary sleeve, drill body, nut, nut set, clamping jaw, self-locking structure, the self-locking structure packet
Tooth and spring leaf are included, the tooth is on drill body or is on the part being fixed on drill body, and the spring leaf has and tooth phase
The lock end of cooperation, it includes that self-locking state positioning is matched to have location structure, the location structure between the rotary sleeve and nut set
Close structure and unlocked state location fit structure；It is characterized in that：It is described between rotary sleeve, nut set and spring leaf this three
Nut set drives rotation by the rotary sleeve without the spring leaf, and spring leaf is supported on nut and puts on and synchronous with nut set
Rotation, the spring leaf carry the controlling position arranged side by side with lock end, and stateful switching part, the state is arranged in the drill chuck
Switching part and rotary sleeve rotate synchronously, and the state switching part is provided with cam surface, and the cam surface and controlling position are matched
It closes, in the unlocked state, spring leaf is made further to deform and the lock end disengaging tooth, in self-locking state, spring leaf is made to rely on gesture
It can discharge and lock end is made to be inserted into the tooth.
Further, the controlling position and it is listed in the outside of lock end, the flank of tooth of the tooth is towards the head of drill chuck.
Further, the flank of tooth of the tooth towards the head of drill chuck, the state switching part include cast main body, and
Cantilever-shaped structure is set in the lower section of cast main body, the cam surface is in the upper surface of cantilever-shaped structure；The state switching
Component is sleeved on except drill body, and is on the component residing for the spring leaf.
Further, for the flank of tooth of the tooth towards the head of drill chuck, the state switching part includes cast main body, institute
The state switching part of stating is sleeved on except nut set and is under the spring leaf, and the state switching part is provided with up
The cam surface.
Further, at the circumferencial direction rear portion of the controlling position, the outside of the component residing for the spring leaf has
Recess portion.
Further, the flank of tooth of the tooth is towards the head of drill chuck, and the spring leaf is under normal conditions towards drill chuck
Diagonally downward, the controlling position is towards the spring leaf position of the caudal directions protrusion of drill chuck for tail portion.
Further, for the flank of tooth of the tooth towards the head of drill chuck, the component residing for the spring leaf lies in nut
The end at the top of set, the nut set is equipped with the resigning recess portion of the controlling position.
Further, the top of the nut set is provided with the pairs of mounting groove towards radial outside, the spring leaf
Residing component is installed by the mounting groove and is positioned；The nut puts on setting driver slot, the rotary sleeve setting and driver slot
The flute length of the drive key of cooperation, the driver slot is more than driving key length, and its difference self solves lock status to certainly with drill chuck
The angle that rotary sleeve turns over when lock status is consistent, and the end of the mounting groove constitutes nut and puts on setting driving cell wall.
Further, the state switching part coordinates with rotary sleeve keyway and is rotated synchronously.
Further, the spring leaf is also disposed in collar member and is sleeved on except drill body；And the collar member passes through outside
Protrusion with nut set go up slot connect.
Further, the nut puts on setting driver slot, the drive key of the rotary sleeve setting and driver slot cooperation, institute
The flute length for stating driver slot is more than driving key length, and its difference self solves lock status with drill chuck and turns to rotary sleeve when self-locking state
The angle crossed is consistent.
Due to technical solution using the present invention, self-locking clamping chuck of drill bit of the invention, nut no matter in clamping direction or
Direction is loosened, in the whole process rotated, is all driven by nut set without passing through spring leaf by rotary sleeve, helps to improve clamping
Feel when operation and efficiency；And spring leaf is only responsible for self-locking function, and locking can be replied by releasing for spring leaf, improve drill point
Reliability, operating handle and the posture for keeping rotary sleeve of head self-locking structure.
Description of the drawings
Fig. 1 is the explosive view of embodiment 1 provided by the present invention.
Fig. 2-1,2-2,2-3 are respectively the front view, vertical view and stereogram of collar member of the embodiment 1 with spring leaf.
Fig. 3-1,3-2 are respectively the stereogram and vertical view of 1 nut of embodiment set.
Fig. 4 is the assembling schematic diagram of embodiment 1 rotary sleeve and the collar member with spring leaf.
Fig. 5 is the stereogram of 1 state switching part of embodiment.
Fig. 6 is the schematic diagram of 1 rotary sleeve of embodiment.
When Fig. 7-1,7-2 are respectively unlocked state, the cooperation schematic diagram of associated components in 1 drill chuck of embodiment.
When Fig. 8-1,8-2 are respectively self-locking state, the cooperation schematic diagram of associated components in 1 drill chuck of embodiment.
Fig. 9 is the explosive view of embodiment 2 provided by the present invention.
When Figure 10-1,10-2 are respectively unlocked state, self-locking state, in 2 drill chuck of embodiment the cooperation of associated components show
It is intended to.
Figure 11 is the stereogram of 2 state switching part of embodiment.
Figure 12 is the schematic diagram of 2 rotary sleeve of embodiment.
Specific implementation mode
Embodiment 1, referring to Fig.1,2-1,2-2,2-3,3-1,3-2,4,5,6,7-1,7-2,8-1,8-2.
Self-locking drill-chuck provided by the present invention, including rotary sleeve 12, drill body 1, nut 11, nut set 7, clamping jaw 2, from
Lock construction.
The surface of the rotary sleeve 12 can be iron sheet housing, and inside is fixedly connected with nylon inner sleeve 6.
The self-locking structure, which includes tooth 80 and spring leaf 90, can be on gear ring 8 tooth 80, and gear ring 8 is fixed on again
On drill body 1, the spring leaf 90 has and 80 matched lock end 91 of tooth.Preferably, the flank of tooth of the tooth 8 is towards drill chuck
Head is on the end face on gear ring 8, to increase the anti-centrifugation ability of self-locking mechanism, contribute to by the diameter of drill chuck do it is small and
Keep the posture of rotary sleeve.
It includes that self-locking state positioning is matched to have location structure, the location structure between the rotary sleeve 12 and nut set 7
Structure and unlocked state location fit structure are closed, rotary sleeve 12 can be made to drive 7 rotation of nut set using location structure.Positioning
Structure includes corresponding to self-locking state and the groove 62,65 of unlocked state respectively on rotary sleeve, is provided on the nut set 7
Elastic cantilever, the protrusion 71 that setting matches with groove 62,65 on elastic cantilever.When self-locking state and unlocked state switch, rotation
Pivoted housing 12 relative to the 7 certain angle of rotation of nut set, meanwhile, also switch groove 62 with raised 71 cooperation and groove 65 with it is convex
Play 71 cooperation.Driver slot 77 is set on the nut set 7, the drive key 61 coordinated with driver slot 77 is arranged in the rotary sleeve,
The flute length of the driver slot 77 is more than the length of drive key 61, and when its difference self solves lock status to self-locking state with drill chuck revolves
The angle that pivoted housing turns over is consistent.Can utilize drive key 61 both sides 63,64 respectively with the both ends cell wall of driver slot 77 73,74
Cooperation, and nut set 7 is driven to continue to rotate in the forward direction in self-locking state, so that clamping jaw is clamped drill bit, and drive after unlocking
Nut set 7 reversely rotates.In unlocked state, 7 rotation of nut set can be driven by above-mentioned location structure.
As described above, the nut set 7 is driven and is rotated without the spring leaf 90 by the rotary sleeve 12.And spring leaf
90 are supported on nut set 7 and are rotated synchronously with nut set 7, and the spring leaf 90 is also disposed in collar member 9, and collar member 9 is simultaneously
It is sleeved on except drill body 1.The collar member 9 is connect by the protrusion 94 in outside with the slot 72 on nut set 7.
The spring leaf 90 carries the controlling position 92 arranged side by side with lock end 91, it can be protrusion, the drill chuck setting
Stateful switching part 10, the state switching part 10 and rotary sleeve 12 rotate synchronously, and the state switching part is provided with
Cam surface 102, the cam surface 102 and controlling position 92 coordinate.The state switching part 10 with the rotation of rotary sleeve and
Rotation is in unlocked state when rotary sleeve goes to drill chuck, and cam surface 102 and the cooperation of controlling position 92 make spring leaf lock end 91
It is detached from the tooth 80, is in self-locking state when rotary sleeve goes to drill chuck, cam surface 102 and the cooperation of controlling position 92 make spring
Piece 90 resets downwards by potential energy release, and lock end 91 is made to be inserted into the tooth 80.
The state switching part 10 includes cast main body, and cantilever-shaped structure 103, institute is arranged in the lower section of cast main body
State the upper surface that cam surface 102 is in cantilever-shaped structure 103.The state switching part 10 is sleeved on except drill body 1, and is in institute
It states on collar member 9, and the cantilever-shaped structure 103 is then wrapped in the outside of nut set 7 and is in the lower section of controlling position 92, it is described
Spring leaf 9 under normal conditions towards the tail portion of drill chuck diagonally downward, the controlling position 92 be towards drill chuck caudal directions
The spring leaf position of protrusion makes compact-sized in this way, helping that drill point area of bed can be further decreased.
The collar member 9 is covered at the top of nut set 7, and the end of the nut set is equipped with the resigning with the controlling position 92
Recess portion 75.There is recess portion 93 on the outside of the circumferencial direction rear portion of the controlling position 92, the collar member, to further increase control
The sensitivity at position 92.
The state switching part 10 coordinates with 7 keyway of rotary sleeve and is rotated synchronously.Drawing reference numeral 101 is that the state is cut
The slot on component 10 is changed, the drive key 61 on rotary sleeve matches with it.
Drawing reference numeral 3,5 is respectively the gasket and bearing between nut and drill body top bar.
Embodiment 2, with reference to Fig. 9,10-1,10-2,11,12.
In the present embodiment, spring leaf 90 is on arc plate 95, and the top of the nut set is provided with pairs of direction
The mounting groove 75 of radial outside, component, that is, arc plate 95 residing for the spring leaf is installed by the mounting groove 75 to be positioned；In this way,
Lock end 91 and controlling position 92 on spring leaf have more upper lift spaces, and mounting groove 75 has component residing for spring leaf 90
There is better styling.
The state switching part 10 includes cast main body, and the state switching part 10 is sleeved on except nut set 7 and locates
Under the spring leaf, the state switching part is provided with the face-up cam surface 102.
The state switching part 10 is provided with the key 104 tilted outward, and using in the nylon of key 104 and rotary sleeve
The cooperation of slot 66 on set 6, the state switching part 10 is connect with rotary sleeve.
The nut puts on setting driver slot 77, the drive key 61 of the rotary sleeve setting and driver slot cooperation, the drive
The flute length of dynamic slot 77 is more than the length of drive key 61, and its difference self solves lock status with drill chuck and turns to rotary sleeve when self-locking state
The angle crossed is consistent.The end 750 of the mounting groove 75 constitutes the driving cell wall of driver slot 77.Drawing reference numeral 751 is driving
The other end cell wall of slot 77.
The other parts and embodiment 1 of the present embodiment are identical, in the attached drawing of embodiment and 1 identical label generation of embodiment
The identical meaning of table.
Above is only a specific embodiment of the present invention, but the structure feature of the present invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, made by changes or modifications all cover among protection scope of the present invention.
Claims (10)
1. a kind of Self-locking drill-chuck, including rotary sleeve, drill body, nut, nut set, clamping jaw, self-locking structure, the self-locking structure
Including tooth and spring leaf, the tooth is on drill body or is on the part being fixed on drill body, and the spring leaf has and tooth
Matched lock end, it includes self-locking state positioning to have location structure, the location structure between the rotary sleeve and nut set
Fit structure and unlocked state location fit structure；It is characterized in that：Between rotary sleeve, nut set and spring leaf this three, institute
It states nut set and drives rotation without the spring leaf by the rotary sleeve, spring leaf is supported on nut and puts on and covered with nut same
Step rotation, the spring leaf carry the controlling position arranged side by side with lock end, and stateful switching part, the shape is arranged in the drill chuck
State switching part and rotary sleeve rotate synchronously, and the state switching part is provided with cam surface, the cam surface and controlling position
Cooperation makes spring leaf further deform and lock end is detached from the tooth and so that spring leaf is relied in self-locking state in the unlocked state
Potential energy discharges and lock end is made to be inserted into the tooth.
2. a kind of Self-locking drill-chuck as described in claim 1, it is characterised in that the controlling position is simultaneously listed in the outer of lock end
Side, the flank of tooth of the tooth is towards the head of drill chuck.
3. a kind of Self-locking drill-chuck as described in claim 1, it is characterised in that head of the flank of tooth of the tooth towards drill chuck
Portion, the state switching part include cast main body, and at the cantilever-shaped structure of the lower section of cast main body setting, the cam surface
In the upper surface of cantilever-shaped structure；
The state switching part is sleeved on except drill body, and is on the component residing for the spring leaf.
4. a kind of Self-locking drill-chuck as described in claim 1, it is characterised in that head of the flank of tooth of the tooth towards drill chuck
Portion, the state switching part include cast main body, and the state switching part is sleeved on except nut set and is in the spring
Under piece, the state switching part is provided with the face-up cam surface.
5. a kind of Self-locking drill-chuck as described in claim 1, it is characterised in that after the circumferencial direction of the controlling position
The outside in portion, the component residing for the spring leaf has recess portion.
6. a kind of Self-locking drill-chuck as described in claim 1, it is characterised in that head of the flank of tooth of the tooth towards drill chuck
Portion, the spring leaf under normal conditions towards the tail portion of drill chuck diagonally downward, the controlling position is towards the tail portion of drill chuck
The spring leaf position of direction protrusion.
7. a kind of Self-locking drill-chuck as described in claim 1, it is characterised in that head of the flank of tooth of the tooth towards drill chuck
Portion, the component residing for the spring leaf lie in the top of nut set, and the end of the nut set is equipped with the controlling position
Resigning recess portion.
8. a kind of Self-locking drill-chuck as described in claim 1, it is characterised in that the top of the nut set is provided in pairs
The mounting groove towards radial outside, the component residing for the spring leaf is installed by the mounting groove to be positioned；The nut is put on
Driver slot, the drive key of the rotary sleeve setting and driver slot cooperation are set, and the flute length of the driver slot is more than the length of drive key
Degree, and to self solve the angle that lock status is turned over to rotary sleeve when self-locking state consistent for its difference and drill chuck, the mounting groove
End constitutes nut and puts on setting driving cell wall.
9. a kind of Self-locking drill-chuck as described in claim 1, it is characterised in that the spring leaf is also disposed in collar member simultaneously
It is sleeved on except drill body；And the collar member covers upper slot with nut by the protrusion in outside and connect.
10. a kind of Self-locking drill-chuck as described in claim 1, it is characterised in that the nut puts on setting driver slot, institute
State the drive key of rotary sleeve setting and driver slot cooperation, the flute length of the driver slot is more than driving key length, and its difference with
It is consistent that drill chuck self solves the angle that lock status is turned over to rotary sleeve when self-locking state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810139021.XA CN108274051B (en) | 2018-02-11 | 2018-02-11 | Self-locking drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810139021.XA CN108274051B (en) | 2018-02-11 | 2018-02-11 | Self-locking drill chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108274051A true CN108274051A (en) | 2018-07-13 |
| CN108274051B CN108274051B (en) | 2024-07-30 |
Family
ID=62808212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810139021.XA Active CN108274051B (en) | 2018-02-11 | 2018-02-11 | Self-locking drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108274051B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109351995A (en) * | 2018-11-05 | 2019-02-19 | 台州市益福机械制造有限公司 | Hand-tight drill chuck with locking function |
| CN110961666A (en) * | 2018-09-29 | 2020-04-07 | 浙江三鸥机械股份有限公司 | Self-locking drill chuck |
| CN112170905A (en) * | 2019-07-01 | 2021-01-05 | 浙江三鸥机械股份有限公司 | Boosting drill chuck |
| CN112191895A (en) * | 2019-07-08 | 2021-01-08 | 浙江三鸥机械股份有限公司 | Automatic clamping centering drill chuck |
| CN114227592A (en) * | 2021-11-23 | 2022-03-25 | 广东技术师范大学 | Self-locking type multifunctional screwdriver head clamping device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110961666A (en) * | 2018-09-29 | 2020-04-07 | 浙江三鸥机械股份有限公司 | Self-locking drill chuck |
| CN109351995A (en) * | 2018-11-05 | 2019-02-19 | 台州市益福机械制造有限公司 | Hand-tight drill chuck with locking function |
| CN112170905A (en) * | 2019-07-01 | 2021-01-05 | 浙江三鸥机械股份有限公司 | Boosting drill chuck |
| CN112170905B (en) * | 2019-07-01 | 2021-12-03 | 浙江三鸥机械股份有限公司 | Boosting drill chuck |
| CN112191895A (en) * | 2019-07-08 | 2021-01-08 | 浙江三鸥机械股份有限公司 | Automatic clamping centering drill chuck |
| CN112191895B (en) * | 2019-07-08 | 2021-11-26 | 浙江三鸥机械股份有限公司 | Automatic clamping centering drill chuck |
| CN114227592A (en) * | 2021-11-23 | 2022-03-25 | 广东技术师范大学 | Self-locking type multifunctional screwdriver head clamping device |
| CN114227592B (en) * | 2021-11-23 | 2023-09-08 | 广东技术师范大学 | Self-locking type multifunctional batch head clamping device |
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| CN108274051B (en) | 2024-07-30 |
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