CN202051830U - Dental drill - Google Patents
Dental drill Download PDFInfo
- Publication number
- CN202051830U CN202051830U CN2011200508379U CN201120050837U CN202051830U CN 202051830 U CN202051830 U CN 202051830U CN 2011200508379 U CN2011200508379 U CN 2011200508379U CN 201120050837 U CN201120050837 U CN 201120050837U CN 202051830 U CN202051830 U CN 202051830U
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- Prior art keywords
- dental drill
- lock shaft
- driving device
- drill
- drill point
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- Expired - Lifetime
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Abstract
The embodiment of the utility model discloses a dental drill which comprises a movement seat that is arranged on an engine body of the dental drill and internally provided with a movement, a driving device arranged in the movement, a drill point that is detachably arranged on the driving device and coaxially rotates along with the driving device, a positioning sleeve that is arranged on the movement seat and provided with an installing hole, a locking shaft that is arranged in the installing hole and circumferentially positioned, a spring that is arranged between the positioning sleeve and the locking shaft, and respectively props against the positioning sleeve and the locking shaft for positioning, and a camshaft that is arranged on the engine body, can rotate around an axis of the camshaft, and is contacted with the end surface at the rear end of the locking shaft, wherein the installing hole is a stepped hole, the front end of the locking shaft is provided with a connecting end which can be embedded into the driving device, and the locking shaft is a stepped shaft. The dental drill facilitates the disassembly and assembly of the drill point.
Description
Technical field
This utility model relates to artificial tooth processing equipment technical field, more particularly, relates to a kind of dental drill.
Background technology
Tooth defect is human commonly encountered diseases, except tooth defect, deformity teeth also is the problem that can not be ignored, improvement along with the living condition, people more and more pay attention to dental health, simultaneously tooth reparation attractive in appearance had higher requirement, the artificial tooth reparation is the unique way that addresses these problems at present.
Along with development of material technology, the series of advantages of bioceramic is rapidly developed in the Oral Repair field, all considerably beyond tradition metal alloy compositions commonly used, full porcelain repair to denture is identified as the main direction of future development to the artificial tooth that pure ceramic material is made in artificial tooth reparation field on performance, biocompatibility, service life and visual appearance.
But the full porcelain reparation of artificial tooth can only be by means of the automatic machine-shaping of CAD/CAM technology, dental drill is a topmost instrument in the whole artificial tooth repair process, by the drill point that is arranged on its end bioceramic is carried out grinding-shaping, in the existing artificial tooth system of processing, drill point carries out grinding to bioceramic, and dental drill is the elbow dental drill, needs special spanner drill point to be dismantled the dismounting inconvenience.
The utility model content
In view of this, this utility model provides a kind of dental drill, so that a kind of dental drill of drill point easy accessibility to be provided.
In order to achieve the above object, this utility model embodiment provides following technical scheme:
A kind of dental drill comprises:
Be arranged on the core base on the body of described dental drill, be provided with movement in this core base; Be arranged on the driving device in the described movement; Be removably disposed on the described driving device, and with the drill point of the coaxial rotation of described driving device;
Also comprise:
Be arranged on the positioning sleeve on the described core base, it is provided with installing hole, and this installing hole is a shoulder hole;
Be arranged in the described installing hole, and circumferential localized lock shaft, its front end is provided with the link that can be embedded in the described driving device, and described lock shaft is a multidiameter;
Be arranged between described positioning sleeve and the lock shaft, and respectively with both localized springs that offsets;
Be arranged on the described body, can rotate around self axis, and the camshaft that contacts with the rear end end face of described lock shaft.
Preferably, in the above-mentioned dental drill, described lock shaft has the mating surface that prevents that it from rotating with respect to described installing hole.
Preferably, in the above-mentioned dental drill, described lock shaft is provided with locating shaft, and described locating shaft is arranged in the locating slot on the core base that prevents described lock shaft rotation.
Preferably, in the above-mentioned dental drill, the bearing of trend of described locating slot is vertical with the axis direction of described lock shaft.
Preferably, in the above-mentioned dental drill, the end of described locating shaft is provided with flat recess.
Preferably, in the above-mentioned dental drill, described driving device is a turbine, and described movement is provided with the turbine chamber of holding described turbine and the high pressure admission hole that communicates with described turbine chamber.
Preferably, in the above-mentioned dental drill, described core base is provided with the liquid coolant spray orifice, and it extends along the direction near described drill point.
Preferably, in the above-mentioned dental drill, the quantity of described liquid coolant spray orifice is two, and is distributed in the both sides of described drill point symmetrically.
Preferably, in the above-mentioned dental drill, described drill point is the diamond drill point.
Preferably, in the above-mentioned dental drill, described body is a cylinder, comprising:
Fuselage, it is a cylinder-like structure, described core base is arranged on an end of described fuselage;
Be arranged on the plug of the described fuselage other end, it is provided with liquid coolant joint and high pressure admission joint, described liquid coolant joint is connected with described liquid coolant spray orifice by the pipeline that is arranged in the described fuselage, and described high pressure admission joint is connected with described high pressure admission hole by the pipeline that is arranged in the described fuselage.
In the dental drill that this utility model embodiment provides, in the process of drill point dismounting, the rotating cam axle, lock shaft moves along the direction of installing hole under the effect of camshaft, the link of the lock shaft that makes simultaneously is embedded in the driving device, thereby make driving device axially fixing, this moment is the dismounting drill point easily, has made things convenient for the dismounting to drill point.
Description of drawings
In order to be illustrated more clearly in this utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the dental drill that Fig. 1 provides for this utility model embodiment;
Fig. 2 is the cutaway view of Fig. 1.
The specific embodiment
For quote and know for the purpose of, now make an explanation the term that occurs among the embodiment as follows:
CAD is the abbreviation of Computer Aided Design, refers to utilize computer and graphics device thereof to help the designer to carry out design work.
CAM is the abbreviation of computer Aided Manufacturing, refers to computer utility in the process or the system that make production process.
Below in conjunction with the accompanying drawing among this utility model embodiment, the technical scheme among this utility model embodiment is clearly and completely described, obviously, described embodiment only is a part of embodiment of the present utility model, rather than whole embodiment.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope of this utility model protection.
This utility model provides a kind of dental drill, has made things convenient for the dismounting of drill point in the replacing process.
Please refer to accompanying drawing 1-2, the structural representation of the dental drill that Fig. 1 provides for this utility model embodiment, Fig. 2 is the cutaway view of Fig. 1.
The dental drill that this utility model embodiment provides comprises body 4, core base 3, movement 1, drill point 10, driving device, positioning sleeve 6, lock shaft 9, spring 7 and camshaft 5, wherein:
Core base 3 is arranged on the body 4 of dental drill, and movement 1 is arranged on the core base 3;
Driving device is arranged in the movement 1, and drill point 10 is removably disposed on the driving device, and with the coaxial rotation of driving device;
Positioning sleeve 6 is arranged on the core base 3, and this positioning sleeve 6 is provided with installing hole, and this installing hole is a shoulder hole;
Lock shaft 9 is arranged in the installing hole, and circumferentially locatees, and its front end is provided with the link that can be embedded in the driving device, and lock shaft 9 is a multidiameter;
Spring 7 is arranged between positioning sleeve 6 and the lock shaft 9, and respectively with both location that offsets;
Camshaft 5 is arranged on the body 4, can rotate around self axis, and the work surface of this camshaft 5 contacts with the rear end end face of lock shaft 9.
In the dental drill that this utility model embodiment provides, being arranged on driving device in the movement 1 drives drill point and is rotated and then carries out grinding work, in the process of changing drill point 10, rotating cam axle 5, lock shaft 9 axially moves in installing hole under the effect of camshaft 5, its link is embedded in the driving device, because lock shaft 9 circumferentially is positioned in the installing hole, so driving device is circumferentially located, can carry out dismounting this moment with drill point 10, after drill point 10 dismounting finish, rotates camshaft 5, this moment, lock shaft 9 resetted under the effect of spring 7, and realization lock shaft 9 is separated with driving device.Need adopt fixed instrument that driving device is fixed with respect to dental drill in the prior art, and then the mode of dismounting drill point 10, the dental drill that this utility model embodiment provides has made things convenient for the dismounting to drill point 10.
In the dental drill that provides in the present embodiment, drill point 10 is being carried out in the process of dismounting, its emphasis is that driving device is fixed, and then with drill point 10 dismounting, prevent drill point 10 in the process of dismounting with rotation of driving device, so after lock shaft 9 is embedded in the driving device, because lock shaft 9 is circumferentially located, so limited the rotation of driving device, above-mentioned realization lock shaft 9 circumferential localized modes have multiple, and for example, lock shaft 9 has the mating surface that prevents that it from rotating with respect to installing hole, for example the cross section of mating surface is oval, polygons etc. prevent that lock shaft 9 from rotating in installing hole.Can also realize the circumferential location of lock shaft 9 in other way, please refer to accompanying drawing 2, locating shaft 8 is set on lock shaft 9, core base 3 is provided with locating slot 31, and locating shaft 8 is arranged in the locating slot 31 that prevents lock shaft 9 rotations.Above-mentioned locating slot 31 is placement positioning axle 8 just, and 8 rotations of restriction locating shaft, and then realization lock shaft 9 is circumferentially located.In order further to optimize technique scheme, the bearing of trend of locating slot 31 is vertical with the axis direction of lock shaft 9.
For easy to operate, the end that above-mentioned camshaft 5 exposes to described body 4 is provided with operating groove, be embedded into the rotation of operating in the operating groove with realization camshaft 5 by instrument, please refer to Fig. 1, this operating groove preferably adopts yi word pattern groove 51, made things convenient for rotary manipulation, can judge by the sensing of yi word pattern groove 51 which kind of duty camshaft 5 is in addition camshaft 5.
The effect of driving device is to drive drill point 10 rotations, and driving device can adopt motor, also can adopt other rotation driving part.Adopt motor as power source, motor speed is slow, make that the linear velocity of drill point is lower, so not only make low to the grinding efficiency of artificial tooth, and the surface roughness of artificial tooth is higher, the surface of denture quality that processes is low, the driving device that adopts among this utility model embodiment is a turbine, please refer to accompanying drawing 2, specifically be that movement 1 is provided with the turbine chamber of holding turbine and the high pressure admission hole 14 that is connected with described turbine chamber, rotate by the drive of high-pressure gas turbine, drive drill point 10 rotations simultaneously, with respect to the mode that existing dental drill adopts 10 rotations of driven by motor drill point to carry out the artificial tooth grinding, the turbine that gases at high pressure promote has higher speed, improved the rotating speed of drill point 10 in the dental drill that this utility model embodiment provides, and then improved grinding speed to artificial tooth, and then improved working (machining) efficiency to artificial tooth, because the raising of grinding speed, make the roughness of artificial tooth reduce, improved the surface quality of artificial tooth.Adopt high pressure gas to drive turbine drive drill point and carry out grinding, than the work of driven by motor drill point, the noise when having reduced grinding.
The mode of above-mentioned employing turbine drive drill point 10, in the process of dismounting drill point 10, rotating cam axle 5, camshaft 5 is with lock shaft 9 jacking forward, the link of lock shaft 9 is embedded in the turbine, and realize being connected with turbine, because lock shaft 9 can't be rotated in installing hole, promptly this moment, turbine was circumferentially fixed, and screw down old drill point this moment from turbine, new drill point on the new clothes of laying equal stress on, after drill point 10 replacings finish, rotating cam axle 5, lock shaft 9 resets under the effect of spring 7, and realization separates with turbine.
Above-mentioned dental drill is in the process of work, drill point 10 grinding bioceramices can produce a large amount of heats, need cool off in time drill point 10, adopt the mode of atomized water spray that drill point is cooled off in the existing dental drill, but cooling effect is not good, in order to address the above problem, in the dental drill of present embodiment, core base 3 is provided with liquid coolant spray orifice 101, liquid coolant is sprayed onto on the drill point 10 by liquid coolant spray orifice 101, in time drill point 10 is cooled off, adopt liquid coolant to cool off, improved cooling effect to drill point 10.Above-mentioned liquid coolant spray orifice 101 extends along the direction near described drill point 10.The arrangement of certain above-mentioned liquid coolant spray orifice 101 is not limited to this, and other arrangement can also be arranged.
In order further to improve cooling effect to drill point 10, the quantity of above-mentioned liquid coolant spray orifice 101 can be for a plurality of, also can be evenly distributed in drill point 10 around, please refer to accompanying drawing 2, in the dental drill that provides in the present embodiment, the quantity that is arranged on the liquid coolant spray orifice 101 on the movement 1 is two, and is distributed in the both sides of described drill point 10 symmetrically.
Certainly, above-mentioned drill point 10 can be various forms of dental drill drill points, and in order further to optimize above-mentioned technical scheme, above-mentioned drill point 10 is the diamond drill point.
Existing dental drill out-of-shape, generally be applicable to manual reconditioning, can't be applied in Dental CAD/CAM system, in the dental drill that provides in the present embodiment, the body 4 of dental drill is cylindrical, and body 4 directly can be installed in Dental CAD/CAM system by linear bearing and carry out work.
In the above-mentioned dental drill, body 4 comprises: fuselage 17, plug 11 and be arranged on pipeline (not shown) in the fuselage 17, wherein:
Fuselage 17 is a cylinder-like structure, and described core base 3 is arranged on an end of fuselage 17;
When the quantity of liquid coolant spray orifice 101 is two, the pipeline of above-mentioned conveying liquid coolant is connected with two liquid coolant spray orifices respectively by hole on the fuselage 17 15 and hole 16, connect for convenience and apace, the entrance point of above-mentioned liquid coolant spray orifice 101 is provided with snap joint 2;
The pipeline of above-mentioned conveying gases at high pressure is connected with high pressure admission hole 14 by the hole on the fuselage 17 18.
Certainly, a kind of mode in the course of conveying of above-mentioned just liquid coolant and high pressure gas can also be carried in other way, and the mode of for example establishing secret tunnel in fuselage 17 realizes the conveying of liquid coolant and high pressure gas etc.
The fuselage 17 of above-mentioned dental drill adopts cylinder-like structure, and will carry the pipeline of gases at high pressure and carry the pipeline of liquid coolant to set within it, pipeline is transported to respectively in high pressure admission hole 14 and the liquid coolant spray orifice 101 by the hole that is arranged on its barrel, make a part of pipeline be arranged in the fuselage 17 like this, at first saved the space, secondly, made things convenient for the layout of pipeline.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use this utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, this utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. dental drill comprises:
Be arranged on the core base (3) on the body (4) of described dental drill, be provided with movement (1) in this core base (3); Be arranged on the driving device in the described movement (1); Be removably disposed on the described driving device, and with the drill point (10) of the coaxial rotation of described driving device;
It is characterized in that, also comprise:
Be arranged on the positioning sleeve (6) on the described core base (3), it is provided with installing hole, and this installing hole is a shoulder hole;
Be arranged in the described installing hole, and circumferential localized lock shaft (9), its front end is provided with the link that can be embedded in the described driving device, and described lock shaft is a multidiameter;
Be arranged between described positioning sleeve (6) and the lock shaft (9), and respectively with both localized springs (7) that offsets;
Be arranged on the described body (4), can rotate around self axis, and the camshaft (5) that contacts with the rear end end face of described lock shaft (9).
2. dental drill according to claim 1 is characterized in that, described lock shaft (9) has the mating surface that prevents that it from rotating with respect to described installing hole.
3. dental drill according to claim 1 is characterized in that, described lock shaft (9) is provided with locating shaft (8), and described locating shaft (8) is arranged in the locating slot (31) on the core base (3) that prevents described lock shaft (9) rotation.
4. dental drill according to claim 3 is characterized in that, the bearing of trend of described locating slot (31) is vertical with the axis direction of described lock shaft (9).
5. dental drill according to claim 4 is characterized in that, the end of described locating shaft (8) is provided with flat recess (51).
6. according to any described dental drill among the claim 1-5, it is characterized in that described driving device is a turbine, described movement (1) is provided with the turbine chamber of holding described turbine and the high pressure admission hole (14) that communicates with described turbine chamber.
7. dental drill according to claim 6 is characterized in that, described core base (3) is provided with liquid coolant spray orifice (101), and it extends along the direction near described drill point (10).
8. dental drill according to claim 7 is characterized in that, the quantity of described liquid coolant spray orifice (101) is two, and is distributed in the both sides of described drill point (10) symmetrically.
9. dental drill according to claim 1 is characterized in that, described drill point (10) is the diamond drill point.
10. dental drill according to claim 1 is characterized in that, described body (4) is a cylinder, comprising:
Fuselage (17), it is a cylinder-like structure, described core base (3) is arranged on an end of described fuselage (17);
Be arranged on the plug (11) of described fuselage (17) other end, it is provided with liquid coolant joint (12) and high pressure admission joint (13), described liquid coolant joint (12) is connected with described liquid coolant spray orifice (101) by the pipeline that is arranged in the described fuselage (17), and described high pressure admission joint (13) is connected with described high pressure admission hole (14) by the pipeline that is arranged in the described fuselage (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200508379U CN202051830U (en) | 2011-02-28 | 2011-02-28 | Dental drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200508379U CN202051830U (en) | 2011-02-28 | 2011-02-28 | Dental drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202051830U true CN202051830U (en) | 2011-11-30 |
Family
ID=45011818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200508379U Expired - Lifetime CN202051830U (en) | 2011-02-28 | 2011-02-28 | Dental drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202051830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102648873A (en) * | 2011-02-28 | 2012-08-29 | 苏州大学 | Engine bit |
-
2011
- 2011-02-28 CN CN2011200508379U patent/CN202051830U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102648873A (en) * | 2011-02-28 | 2012-08-29 | 苏州大学 | Engine bit |
| CN102648873B (en) * | 2011-02-28 | 2014-10-22 | 苏州大学 | Engine bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111130 Effective date of abandoning: 20141022 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20111130 Effective date of abandoning: 20141022 |
|
| RGAV | Abandon patent right to avoid regrant |