CN105534611B - A kind of high speed handpiece movement mandrel component of anti-clamping head - Google Patents
A kind of high speed handpiece movement mandrel component of anti-clamping head Download PDFInfo
- Publication number
- CN105534611B CN105534611B CN201510909497.3A CN201510909497A CN105534611B CN 105534611 B CN105534611 B CN 105534611B CN 201510909497 A CN201510909497 A CN 201510909497A CN 105534611 B CN105534611 B CN 105534611B
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- Prior art keywords
- collet
- claw shaped
- hollow cavity
- shaped body
- cavity
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C3/00—Dental tools or instruments
- A61C3/06—Tooth grinding or polishing discs; Holders therefor
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Jigs For Machine Tools (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
A kind of high speed handpiece movement mandrel component of anti-clamping head, including mandrel；The collet is slidably disposed in the hollow cavity, and the Integral hollow cavity body structure that the collet is made of collet ring and several claw shaped bodies, one end of the claw shaped body is fixed on the collet ring, the other end is axially extending along the hollow cavity, several claw shaped body intervals are fixed on the collet ring, and the hollow portion for accommodating vehicle needle is formed to surround；The extension front end of the claw shaped body is equipped with conical slide, and the conical slide of all claw shaped bodies collectively constitutes circular conical surface and coordinates with the installation conical surface adaptability.The two side of claw shaped body is limited in recess portion, prevents the offset of collet radially in hollow cavity；Compared with the prior art, such connection type, increases collet and pressing piece contact area is big as much as possible, the position both defined, realize it is coherent steadily contact, the clamping of vehicle needle and replace convenient, stability is high when clamping.
Description
Technical field
The present invention relates to medical instruments fields, and in particular to a kind of high speed handpiece movement mandrel component of anti-clamping head.
Background technology
Dental handpiece is one of the equipment of oral medical indispensability, and the field applied is more and more extensive, in addition to the department of stomatology,
The also use of internal medicine, orthopaedics, beauty and shaping industry.The head that the structure of dental handpiece includes handle, is connect with handle, head
Include shaft with needle holder part, the wind wheel being placed in shaft and the bearing for being symmetricly set on wind wheel both sides, needle holder part is used
In clamping work stick, the rotation of work stick is driven when the spindle is rotated, tooth of polishing.Therefore, needle holder part allows for firmly
Work stick is clamped, work stick cannot be allowed to fall off, otherwise can be threatened to patient and doctor.Existing dental handpiece,
The opening of needle holder part is larger, if the opening of needle holder part is larger, there are the danger that work stick is easy to fall off；If needle holder part
Opening it is smaller, then the stick that works is difficult to across work stick can not be clamped.
Invention content
It is an object of the invention to propose to provide a kind of mandrel component, work stick can firmly be clamped, make work
It is not easily to fall off to make stick.
For this purpose, the present invention uses following technical scheme：
A kind of high speed handpiece movement mandrel component of anti-clamping head, including mandrel, the mandrel is interior to be equipped with hollow cavity, edge
The axis direction of the hollow cavity from left to right collet and pressing piece successively；The installation conical surface is equipped in the hollow cavity, and
The internal diameter of the installation conical surface is from left to right gradually reduced；
The collet is slidably disposed in the hollow cavity, and the collet is by collet ring and several claw shaped bodies
One end of the Integral hollow cavity body structure of composition, the claw shaped body is fixed on the collet ring, and the other end is along described hollow
Cavity it is axially extending, several claw shaped body intervals are fixed on the collet ring, with surround form receiving vehicle needle hollow portion；
The extension front end of the claw shaped body is equipped with conical slide, the conical slides of all claw shaped bodies collectively constitute circular conical surface with it is described
The cooperation of conical surface adaptability is installed；
The pressing piece is slidably disposed in the hollow cavity, and one end be arranged at intervals with it is several resist portion,
Adjacent described resist is divided into the recess portion for accommodating the claw shaped body between portion；The pressing piece is arranged in the side of the collet, makes
Each claw shaped body for obtaining the collet all accommodates within the recess.
Preferably, the hollow cavity is made of major diameter cavity and minor diameter cavity two parts, and the collet ring can be slided
It is arranged dynamicly in the major diameter cavity, the claw shaped body is slidably disposed in the small diameter cavity body, the installation
The conical surface is arranged in the position of the major diameter cavity and the handing-over of minor diameter cavity, the lateral wall of the claw shaped body and the collet body
Lateral wall between form step.
Preferably, the intersection of the front end face of the claw shaped body and madial wall is equipped with blade, when vehicle needle clamps, the blade
It is in close contact with the lateral wall of the vehicle needle.
Preferably, one end of the pressing piece is equipped with press section, and the press section is sleeved on the lateral wall for resisting portion,
So that it is described resist portion resist between end face and the madial wall of the press section formed in step, the lateral wall for resisting portion
Outer step is formed between the pressing end surface of the press section, the press section is slidably disposed on the major diameter cavity
Interior, the other end of the pressing piece is slidably disposed in the small diameter cavity body.
Preferably, the step-like structure that the collet ring is made of big ring body and small ring body, the big ring body is slidably
It is arranged in the major diameter cavity, the small ring body is slidably disposed in the small diameter cavity body, and the claw shaped body
One end be fixed on the small ring body.
Preferably, the other end of the pressing piece stretches out the mandrel, and the other end end of the pressing piece is described in
One section between recess portion is equipped with the hollow cavity for accommodating vehicle needle.
Preferably, the collet ring is equipped with chamfering in the side that vehicle needle is inserted into.
Preferably, the left side of the collet is equipped with spring, and the spring is slidably disposed in the hollow cavity, institute
The one end for stating collet resists one end of the spring.
Preferably, the left side of the spring is equipped with guide sleeve, and the guide sleeve is fixed in the hollow cavity, the bullet
The other end of spring resists the guide sleeve.
Preferably, the guide sleeve is weldingly fixed in the hollow cavity.
Beneficial effects of the present invention：In the technical program, claw shaped body is arranged in the junction of collet and pressing piece, collet, presses
Recess portion is arranged in casting die, and the two quantity is suitable, and claw shaped body is inserted into recess portion and realizes assembly, and when pressing, the end of claw shaped body resists recess portion
End, pressure area it is big；The two side of claw shaped body is limited in recess portion, prevents the offset of collet radially in hollow cavity；
Compared with the prior art, such connection type, increases collet and pressing piece contact area is big, define as much as possible
The position of the two, realize it is coherent steadily contact, the clamping of vehicle needle and replace convenient, stability is high when clamping.
Description of the drawings
Fig. 1 is the explosive view of one embodiment of the present of invention；
Fig. 2 is the installation diagram of one embodiment of collet and pressing piece in the present invention；
Fig. 3 is sectional view of the one embodiment of the present of invention in vertical direction；
Fig. 4 is the stereogram of one embodiment of pressing piece in the present invention；
Fig. 5 is the stereogram of one embodiment of collet in the present invention.
Wherein：Mandrel 1, hollow cavity 11, major diameter cavity 110, minor diameter cavity 111 install the conical surface 112；Collet 2,
Collet ring 21, big ring body 210, small ring body 211, claw shaped body 22, front end face 220, madial wall 221, blade 223, conical slide 23,
Step 24；Pressing piece 3 resists portion 31, resists end face 310, recess portion 32, press section 33, interior step 34, outer step 35；Spring 4,
Guide sleeve 5, vehicle needle 6.
Specific implementation mode
Embodiment of the present invention is described in detail below in conjunction with the drawings and specific embodiments.Art technology
Personnel will be understood that the following drawings and specific implementation mode are only the preferred embodiment of the present invention, in order to more fully understand
The present invention, thus should not be taken as limiting the scope of the invention.For those skilled in the art, the present invention can have various
Change and variation, all within the spirits and principles of the present invention, made by any modification, equivalent replacement or improvement etc., should all wrap
Containing within protection scope of the present invention.
As shown in Figures 1 and 3, a kind of high speed handpiece movement mandrel component of anti-clamping head, including mandrel 1, the mandrel 1
It is interior to be equipped with hollow cavity 11, along axis direction from left to right collet 2 and the pressing piece 3 successively of the hollow cavity 11；In described
The installation conical surface 112 is equipped in cavity body 11, and the internal diameter of the installation conical surface 112 is from left to right gradually reduced；
As shown in Figures 2 and 3, the collet 2 is slidably disposed in the hollow cavity 11, and the collet 2 is
The Integral hollow cavity body structure being made of collet ring 21 and several claw shaped bodies 22, one end of the claw shaped body 22 are fixed on described
Collet ring 21, the other end is axially extending along the hollow cavity 11, and several intervals of the claw shaped body 22 are fixed on the folder
Headring 21 forms the hollow portion for accommodating vehicle needle 6 to surround；The extension front end of the claw shaped body 22 is equipped with conical slide 23, owns
The conical slide 23 of the claw shaped body 22 collectively constitutes circular conical surface and coordinates with 112 adaptability of the installation conical surface；
As shown in Figures 4 and 5, the pressing piece 3 is slidably disposed in the hollow cavity 11, and one end interval
Be provided with it is several resist portion 31, adjacent described resist is divided into the recess portion 32 for accommodating the claw shaped body 22 between portion 31；The pressing
Part 3 is arranged in the side of the collet 2 so that each claw shaped body 22 of the collet 2 is all contained in the recess portion 32.
Vehicle needle 6 is inserted into the hollow cavity 11 of the mandrel 1 from left side, passes through collet 2 and pressing piece 3, hollow cavity successively
The installation conical surface 112 that from left to right internal diameter is gradually reduced is equipped in 11, the front end of the claw shaped body 22 of the collet 2 is equipped with sliding cone
Face 23, the conical slides 23 of all claw shaped bodies 22 collectively constitutes circular conical surface, and from left to right outer diameter is gradually reduced, with the peace
Fill the cooperation of 112 adaptability of the conical surface.Vehicle needle 6 is wrapped in several claw shaped bodies 22 around formation after passing through collet ring 21 when assembly
Hollow portion, the continuation of outer power drive vehicle needle 6 is inserted into the right, sweep along the claw shaped body 22 of vehicle needle 6 also relatively the hollow cavity 11 to
Right side moves, and each claw shaped body 22 is more turned right, and the big outer diameter end of conical slide 23 is more caught in the small of the installation conical surface 112 thereon
Inner-diameter portion is then bonded between claw shaped body 22 and the inner wall of vehicle needle 6 more and more closely, is moved to and is finally utilized taper by vehicle needle 6
Clamping.
When needing to remove vehicle needle 6, the pressing piece 3 is driven to make it from right toward left movement, the recess portion 32 of pressing piece 3 transmits
Claw shaped body 22 and collet body 21 is pushed to move downward, the small outer diameter end of conical slide 23 is to the installation conical surface on claw shaped body 22
112 large diameter componental movement so that being bonded between claw shaped body 22 and 11 inner wall of hollow cavity gradually relaxes, operating personnel from
It pulls a cart needle 6 in outside one, you can be detached from the fixation of mandrel component.
Mandrel component and its each component of inside have small, and the high feature of required precision imposes external force by pressing piece 3
2 side-to-side movement of collet is driven, to realize release and clamping of the collet 21 to vehicle needle 6, this is the skill routinely used in the prior art
Art, however it is small due to component, and when pressing piece 3 and collet 2 are mutually driven, the junction of the two often coordinates
Do not link up closely, influences the clamping and replacement of vehicle needle 6；And due to connecting the discontinuous of cooperation, caused collet 2 is to vehicle needle 6
Clamping it is unstable, the problems such as being easy to happen flying needle when in use, there are greatest security risks.
In the technical program, claw shaped body 22 is arranged in the junction of collet 2 and pressing piece 3, collet 2, and recess portion is arranged in pressing piece 3
32, the two quantity is suitable, and claw shaped body 22 is inserted into recess portion 32 and realizes assembly, and when pressing, the end of claw shaped body 22 resists recess portion 32
End, pressure area are big；The two side of claw shaped body 22 is limited in recess portion 32, prevent collet 2 in hollow cavity 11 radially
Offset；Compared with the prior art, such connection type, increases 3 contact area of collet 2 and pressing piece as much as possible
Greatly, the position both defined, realize it is coherent steadily contact, the clamping of vehicle needle 6 and replace convenient, stability is high when clamping.
The hollow cavity 11 is made of major diameter cavity 110 and 111 two parts of minor diameter cavity, and the collet ring 21 can
It is slidably arranged in the major diameter cavity 110, the claw shaped body 22 is slidably disposed on the minor diameter cavity 111
Interior, the installation conical surface 112 is arranged in the position that the major diameter cavity 110 and minor diameter cavity 111 join, the claw shaped body
Step 24 is formed between 22 lateral wall and the lateral wall of the collet body 21.
The front end face 220 of the claw shaped body 22 is equipped with blade 223 with the intersection of madial wall 221, when vehicle needle 6 clamps, institute
It states blade 223 and the lateral wall of the vehicle needle 6 is in close contact.
One end of the pressing piece 3 is equipped with press section 33, and the press section 33 is sleeved on the lateral wall for resisting portion 31,
So that it is described resist portion 31 resist between end face 310 and the madial wall of the press section 33 formed in step 34, it is described to resist
Outer step 35 is formed between the lateral wall in portion 31 and the pressing end surface of the press section 33, the press section 33 is slideably set
It sets in the major diameter cavity 110, the other end of the pressing piece 3 is slidably disposed in the minor diameter cavity 111.
The step-like structure that the collet ring 21 is made of big ring body 210 and small ring body 211, the big ring body 210 can
It being slidably arranged in the major diameter cavity 110, the small ring body 211 is slidably disposed in the minor diameter cavity 111,
And one end of the claw shaped body 22 is fixed on the small ring body 211.
The other end of the pressing piece 3 stretches out the mandrel 1, and the other end end of the pressing piece 3 is to the recess portion
One section between 32 is equipped with the hollow cavity for accommodating vehicle needle 6.
The collet ring 21 is equipped with chamfering in the side that vehicle needle 6 is inserted into.
Vehicle needle 6 is inserted into the collet from the place of inner chamfer, and inner chamfer provides an intilted angle, so vehicle
The insertion of needle can be more convenient.
The left side of the collet 2 is equipped with spring 4, and the spring 4 is slidably disposed in the hollow cavity 11, described
One end of collet 2 resists one end of the spring 4.
The left side of the spring 4 is equipped with guide sleeve 5, and the guide sleeve 5 is fixed in the hollow cavity 11, the spring
4 other end resists the guide sleeve 5.Guide sleeve 5 plays the positioning action to spring 4, prevents it from falling off from hollow cavity 11；
In addition, the spring 4, which resists the guide sleeve, carries out flexible deformation, improve flexible deformation is precision.
The guide sleeve 5 is weldingly fixed in the hollow cavity 11.By welding so that the guide sleeve is solid
It is scheduled on the mandrel, strengthens the stability of its position, to also ensure the stability of 6 clamping of vehicle needle.
The technical principle of the present invention is described above in association with specific embodiment.These descriptions are intended merely to explain the present invention's
Principle, and it cannot be construed to limiting the scope of the invention in any way.Based on the explanation herein, the technology of this field
Personnel would not require any inventive effort the other specific implementation modes that can associate the present invention, these modes are fallen within
Within protection scope of the present invention.
Claims (7)
1. a kind of high speed handpiece movement mandrel component of anti-clamping head, including mandrel, the mandrel is interior to be equipped with hollow cavity, along institute
State the axis direction of hollow cavity from left to right collet and pressing piece successively, it is characterised in that：Peace is equipped in the hollow cavity
The conical surface is filled, and the internal diameter of the installation conical surface is from left to right gradually reduced；
The collet is slidably disposed in the hollow cavity, and the collet is made of collet ring and several claw shaped bodies
Integral hollow cavity body structure, one end of the claw shaped body is fixed on the collet ring, and the other end is along the hollow cavity
It is axially extending, several claw shaped body intervals are fixed on the collet ring, with surround form receiving vehicle needle hollow portion；It is described
The extension front end of claw shaped body is equipped with conical slide, and the conical slide of all claw shaped bodies collectively constitutes circular conical surface and the installation
Conical surface adaptability coordinates；
The pressing piece is slidably disposed in the hollow cavity, and one end be arranged at intervals with it is several resist portion, it is adjacent
Described resist is divided into the recess portion for accommodating the claw shaped body between portion；The pressing piece is arranged in the side of the collet so that institute
Each claw shaped body for stating collet all accommodates within the recess；
The hollow cavity is made of major diameter cavity and minor diameter cavity two parts, and the collet ring is slidably disposed on institute
It states in major diameter cavity, the claw shaped body is slidably disposed in the small diameter cavity body, and the installation conical surface is arranged in institute
The position for stating major diameter cavity and the handing-over of minor diameter cavity, between the lateral wall of the claw shaped body and the lateral wall of the collet body
Form step；
One end of the pressing piece is equipped with cricoid press section, and the press section is sleeved on the lateral wall for resisting portion so that
It is described resist portion resist formed between end face and the madial wall of the press section in step, the lateral wall for resisting portion and institute
It states and forms outer step between the pressing end surface of press section, the press section is slidably disposed in the major diameter cavity,
The other end of the pressing piece is slidably disposed in the small diameter cavity body；
The step-like structure that the collet ring is made of big ring body and small ring body, the big ring body are slidably arranged described big
In diameter chamber body, the small ring body is slidably disposed in the small diameter cavity body, and one end of the claw shaped body is fixed on
The small ring body.
2. a kind of high speed handpiece movement mandrel component of anti-clamping head according to claim 1, it is characterised in that：The pawl
The front end face of shape body and the intersection of madial wall are equipped with blade, and when vehicle needle clamps, the lateral wall of the blade and the vehicle needle is tight
Contiguity is touched.
3. a kind of high speed handpiece movement mandrel component of anti-clamping head according to claim 1, it is characterised in that：It is described to press
The other end of casting die stretches out the mandrel, and the other end end of the pressing piece is equipped with to one section between the recess portion and accommodates
The hollow cavity of vehicle needle.
4. a kind of high speed handpiece movement mandrel component of anti-clamping head according to claim 1, it is characterised in that：The folder
Headring is equipped with chamfering in the side that vehicle needle is inserted into.
5. a kind of high speed handpiece movement mandrel component of anti-clamping head according to claim 1, it is characterised in that：The folder
The left side of head is equipped with spring, and the spring is slidably disposed in the hollow cavity, and one end of the collet resists described
One end of spring.
6. a kind of high speed handpiece movement mandrel component of anti-clamping head according to claim 5, it is characterised in that：The bullet
The left side of spring is equipped with guide sleeve, and the guide sleeve is fixed in the hollow cavity, and the other end of the spring resists described lead
To set.
7. a kind of high speed handpiece movement mandrel component of anti-clamping head according to claim 6, it is characterised in that：It is described to lead
It is weldingly fixed in the hollow cavity to set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510909497.3A CN105534611B (en) | 2015-12-10 | 2015-12-10 | A kind of high speed handpiece movement mandrel component of anti-clamping head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510909497.3A CN105534611B (en) | 2015-12-10 | 2015-12-10 | A kind of high speed handpiece movement mandrel component of anti-clamping head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105534611A CN105534611A (en) | 2016-05-04 |
| CN105534611B true CN105534611B (en) | 2018-10-16 |
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ID=55814551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510909497.3A Active CN105534611B (en) | 2015-12-10 | 2015-12-10 | A kind of high speed handpiece movement mandrel component of anti-clamping head |
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| CN (1) | CN105534611B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108655438A (en) * | 2017-03-27 | 2018-10-16 | 江苏持华轴承有限公司 | A kind of conical ring clamping device and milling machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5947485A (en) * | 1997-07-15 | 1999-09-07 | Nguyen; Tuan | Collet assembly and manufacturing process |
| CN203208134U (en) * | 2013-04-24 | 2013-09-25 | 曾文彬 | High-speed turbine dental handpiece bur main shaft |
| CN203263556U (en) * | 2013-05-23 | 2013-11-06 | 宁静瑶 | Pressing shaft of dental handpiece |
| CN204379457U (en) * | 2014-12-29 | 2015-06-10 | 佛山市碧盈医疗器材有限公司 | Dental high-speed worm gear mobile phone core clamping trolley needle device |
| CN205181487U (en) * | 2015-12-10 | 2016-04-27 | 佛山市德克医疗器械有限公司 | High -speed cell -phone core core shaft assembly of anti - clamping head |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020153675A1 (en) * | 2001-04-18 | 2002-10-24 | Adams Rory Neil | Chuck for rotary tools |
-
2015
- 2015-12-10 CN CN201510909497.3A patent/CN105534611B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5947485A (en) * | 1997-07-15 | 1999-09-07 | Nguyen; Tuan | Collet assembly and manufacturing process |
| CN203208134U (en) * | 2013-04-24 | 2013-09-25 | 曾文彬 | High-speed turbine dental handpiece bur main shaft |
| CN203263556U (en) * | 2013-05-23 | 2013-11-06 | 宁静瑶 | Pressing shaft of dental handpiece |
| CN204379457U (en) * | 2014-12-29 | 2015-06-10 | 佛山市碧盈医疗器材有限公司 | Dental high-speed worm gear mobile phone core clamping trolley needle device |
| CN205181487U (en) * | 2015-12-10 | 2016-04-27 | 佛山市德克医疗器械有限公司 | High -speed cell -phone core core shaft assembly of anti - clamping head |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105534611A (en) | 2016-05-04 |
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