CN2584326Y - Improved drill chuck backcover and closefisted drill chuck with the backcover - Google Patents
Improved drill chuck backcover and closefisted drill chuck with the backcover Download PDFInfo
- Publication number
- CN2584326Y CN2584326Y CN 02291306 CN02291306U CN2584326Y CN 2584326 Y CN2584326 Y CN 2584326Y CN 02291306 CN02291306 CN 02291306 CN 02291306 U CN02291306 U CN 02291306U CN 2584326 Y CN2584326 Y CN 2584326Y
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- China
- Prior art keywords
- hole
- drill
- endoporus
- end wall
- drill chuck
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- Gripping On Spindles (AREA)
Abstract
The utility model discloses an improved back sleeve for a drill chuck and a hand fastening drill chuck arranged on the back sleeve. The back sleeve is composed of a periphery wall, and an end wall at the back end of the periphery wall, which is extended inwards along radial direction, wherein, an inner hole which can be matched with the outer surface of the back end of a drill body is formed on the end wall. One embedding piece is embedded inside the periphery wall and the end wall. The position of the embedding piece, which corresponds to the inner hole, forms a through hole. Because of embedding the embedding piece, the strength and the rigidity of the back sleeve can be enhanced, and the back sleeve is not easy to deform or to damage. When the back sleeve is arranged on the drill chuck, a structure used for transferring torque is arranged between the back sleeve and the drill body. When the drill chuck can not be disassembled because of the tight connection of the drill chuck and a main shaft for a drill press, other tools can be used for clamping the back sleeve and applying torque force, and the drill chuck can be disassembled from the drill press.
Description
Technical field:
The utility model relates to a kind of clamping device of drill bit, relates in particular to behind a kind of improved drill chuck cover and is installed in the hand fastening drill clutch that this back is overlapped.
Background technology:
In the prior art, hand fastening drill clutch generally comprises drill body, jaw, screw, protheca and back cover, the back cover is a rotary body that is made of plastics, and installation and removal (are about to the process that drill chuck is installed on drill press spindle and drill chuck is unloaded from drill press spindle) during drill chuck, the operator is installed on drill chuck on the drill press spindle by gripping the back cover, and because the strength and stiffness of working of plastics are all relatively poor, so the back cover easy deformation made of plastics or destroyed.On June 9th, 1999 Granted publication Chinese utility model patent CN2322725, a kind of hand fastening drill clutch is disclosed, this drill chuck comprises drill body, jaw, screw, protheca and back cover, three jaws are separately positioned in three inclined holes that are distributed on the drill body, adopt between screw and the jaw and be threaded, the rear end of screw is provided with thrust bearing, the rear end of thrust bearing is provided with back-up ring, the rear end of drill body is equipped with the back cover, screw is a two halves formula structure, by a nut sleeve two halves are integrated, interference fit between nut sleeve and the screw adopts key connecting to transmit moment of torsion between protheca and the nut sleeve.Just there is foregoing shortcoming in this hand fastening drill clutch: because cover is working of plastics thereafter, when drill chuck bears higher torsion, the back cover is easy to generate distortion or destroyed, especially when drill chuck can't unload owing to installing too tight, whole drill chuck just can't be pulled down because the strength and stiffness of back cover are not enough, even scrap.
The utility model content:
One of the technical problems to be solved in the utility model is: overlap after a kind of improved drill chuck is provided, its strength and stiffness are all strengthened greatly, and are not yielding or destroyed.
Another technical problem to be solved in the utility model is the deficiency that overcomes above-mentioned prior art, and a kind of improved hand fastening drill clutch is provided, and Tao strength and stiffness are all strengthened greatly thereafter, thereby can bear bigger torsion.
A technical problem more to be solved in the utility model is the deficiency that overcomes above-mentioned prior art, a kind of improved hand fastening drill clutch is provided, its not only back cover has higher strength and stiffness, and be provided with the structure of transmitting moment of torsion between back cover and the drill body, can't unload owing to install too tight when drill chuck, overlap after can utilizing other tool holding to live and apply torsion, drill chuck is unloaded from drilling machine.
Overlap behind the improved drill chuck that provides according to the utility model, by a perisporium and certainly the end wall that radially extends internally of the rear end of this perisporium constitute, be formed with an endoporus that can cooperate on the described end wall with the outer surface of drill body rear end, described perisporium and end wall are embedded with an inserts, and described inserts is formed with a through hole corresponding to the position of described endoporus.
According to the hand fastening drill clutch that the utility model provides, comprise a hollow drill body, along the inclined hole that circumferentially is provided with three inclinations equally spacedly, a jaw is installed slidably in each inclined hole in the described drill body; The middle part of described drill body is provided with a screw, and this screw and each described jaw interconnect by screw thread; The front end of described drill body is provided with a protheca, and the rear end is equipped with a back cover; Described back cover by a perisporium and certainly the end wall that radially extends internally of the rear end of this perisporium constitute, be formed with an endoporus that can cooperate on the described end wall with the outer surface of described drill body rear end, described perisporium and end wall are embedded with an inserts, and described inserts is formed with a through hole corresponding to the position of described endoporus.
Cover and hand fastening drill clutch also have as above attached technical characterictic behind the improved drill chuck that provides according to the utility model:
In a kind of embodiment that the utility model provides, the described through hole on the described inserts has the side that at least one pair of is parallel to each other, and the described endoporus on the described end wall has and the shape of described side, the side that size is identical; The rear end of described drill body is formed with the parallel plane that can cooperate with described side accordingly.
In the another kind of embodiment that the utility model provides, the described through hole on the described inserts has the side that at least one pair of is parallel to each other, and the endoporus on the described end wall is a circular hole; The rear end of described drill body is formed with the parallel plane that can cooperate with described side accordingly.
In another embodiment that the utility model provides, the described through hole on the described inserts is a polygon hole, and the described endoporus on the described end wall also is a polygon hole, its shape, big or small identical with described through hole; The rear end of described drill body form can with the gengon that cooperates of described polygon hole.
Described inserts is made by metal material.
The relative prior art of the utility model has following advantage: because back cover is embedded with a metal insert, make that the strength and stiffness of back cover are all strengthened greatly, thereby it still can not deform or destroyed when bearing big torsion; When this back cover is installed on hand fastening drill clutch, between back cover and the drill body structure of transmitting moment of torsion can be set, in the time of can't unloading owing to be connected too tightly with drill press spindle when drill chuck, overlap after can utilizing other tool holding to live and apply torsion, thereby drill chuck is unloaded from drill press spindle.
Description of drawings:
The further feature and advantage of the utility model with the embodiment that provides in conjunction with the accompanying drawings, describe in detail.Wherein:
Fig. 1 is the half sectional view that the hand fastening drill clutch that overlaps behind the improved drill chuck of the present utility model is installed;
Fig. 2 is the A-A cutaway view of Fig. 1, there is shown the structure of overlapping behind the drill chuck of a kind of embodiment:
Fig. 3 also is the A-A cutaway view of Fig. 1, there is shown the structure of overlapping behind the drill chuck of another kind of embodiment:
Fig. 4 also is the A-A cutaway view of Fig. 1, there is shown the structure of overlapping behind the drill chuck of another embodiment:
The specific embodiment:
Before describing the utility model in detail, define relational language earlier:
Alleged " front end " of the utility model means in the hand fastening drill clutch, an end of each jaw clamping drilling bit, i.e. lower end among Fig. 1;
Alleged " rear end " of the utility model mean in the hand fastening drill clutch, with machining tool, and for example end that connects of drilling machine, i.e. upper end among Fig. 1.
Referring to Fig. 1, overlap behind the improved drill chuck that provides according to the utility model, by a perisporium 51 and certainly the end wall 52 that radially extends internally of the rear end of this perisporium 51 constitute, be formed with an endoporus 53 that can cooperate on the described end wall 52 with the outer surface of drill body 1 rear end, described perisporium 51 and end wall 52 are embedded with an inserts 10 of being made by metal material (adopt steel part for best), described inserts 10 corresponding to the position of described endoporus 53 be formed with a through hole 53 '.Because the embedding of described inserts 10 makes that the strength and stiffness of back cover are strengthened greatly.
As a kind of embodiment of the present utility model, as shown in Figure 2, described through hole 53 ' have a pair of side that is parallel to each other 54, described endoporus 53 has and the shape of described side 54, the side that size is identical, certainly, the quantity of described side also can be two pairs or more.
As another kind of embodiment of the present utility model, as shown in Figure 3, described through hole 53 ' have a pair of side that is parallel to each other 54, described endoporus 53 is a circular hole, certainly, the quantity of described side 54 also can be two pairs or more.
As another embodiment of the present utility model, as shown in Figure 4, described through hole 53 ' be a polygon hole, described endoporus 53 also is a polygon hole, its shape, size and described through hole 53 ' identical.
Referring to Fig. 1, according to the hand fastening drill clutch that the utility model provides, comprise a hollow drill body 1, along the inclined hole that circumferentially is provided with three inclinations equally spacedly, a jaw 2 is installed slidably in each inclined hole in the described drill body 1; The middle part of described drill body 1 is provided with a screw 3, and this screw 3 and each described jaw 2 interconnect by screw thread; The front end of described drill body 1 is provided with a protheca 4, and the rear end is equipped with a back cover 5; Because these structures all are that those of ordinary skill in the art knows, and irrelevant with the utility model, so locate to repeat no more.
As shown in fig. 1, described back cover 5 by a perisporium 51 and certainly the end wall 52 that radially extends internally of the rear end of this perisporium 51 constitute, be formed with an endoporus 53 that can cooperate on the described end wall 52 with the outer surface of described drill body 1 rear end, described perisporium 51 and end wall 52 are embedded with an inserts 10 of being made by metal material (adopt steel part for best), described inserts 10 corresponding to the position of described endoporus 53 be formed with a through hole 53 '.Because the embedding of described inserts 10 makes that the strength and stiffness of this back cover 5 are all strengthened greatly.
As a kind of embodiment of the present utility model, as shown in Figure 2, the described through hole 53 on the described inserts 10 ' have a pair of side that is parallel to each other 54, the described endoporus 53 on the described end wall 52 has and the shape of described side 54, the side that size is identical; Certainly, the quantity of described side 54 also can be two pairs or more, and the rear end of described drill body 1 is formed with the parallel plane that can cooperate with described side 54 accordingly.
Referring to Fig. 3, as another kind of embodiment of the present utility model, the described through hole 53 on the described inserts 10 ' have a pair of side that is parallel to each other 54, the endoporus 53 on the described end wall 52 is a circular hole; The rear end of described drill body 1 is formed with the parallel plane that can cooperate with described side 54 accordingly.
Referring to Fig. 4, as another embodiment of the present utility model, the described through hole 53 on the described inserts 10 ' be a polygon hole, the described endoporus 53 on the described end wall 52 also is a polygon hole, its shape, size and described through hole 53 ' identical; The rear end of described drill body 1 form can with the gengon that cooperates of described polygon hole.
In the various embodiments described above that provide, because back cover 5 is provided with the structure of transmitting moment of torsion with the rear end of drill body 1, in the time of can't unloading owing to be connected too tightly with drill press spindle when drill chuck, can utilize other tool holding to live back cover 5 and apply torsion, thereby drill chuck is unloaded from drill press spindle.
Claims (10)
1, overlaps behind a kind of improved drill chuck, by a perisporium (51) and certainly the end wall (52) that radially extends internally of the rear end of this perisporium (51) constitute, be formed with an endoporus (53) that can cooperate on the described end wall (52) with the outer surface of drill body (1) rear end, it is characterized in that: described perisporium (51) and end wall (52) are embedded with an inserts (10), and described inserts (10) is formed with a through hole (53 ') corresponding to the position of described endoporus (53).
2, overlap behind the improved drill chuck according to claim 1, it is characterized in that: described through hole (53 ') has at least one pair of side that is parallel to each other (54), and described endoporus (53) has and the shape of described side (54), the side that size is identical.
3, overlap behind the improved drill chuck according to claim 1, it is characterized in that: described through hole (53 ') has at least one pair of side that is parallel to each other (54), and described endoporus (53) is a circular hole.
4, overlap behind the improved drill chuck according to claim 1, it is characterized in that: described through hole (53 ') is a polygon hole, and described endoporus (53) also is a polygon hole, its shape, big or small identical with described through hole (53 ').
5, according to overlapping behind any described improved drill chuck in above-mentioned each claim, it is characterized in that: described inserts (10) is made by metal material.
6, a kind of hand fastening drill clutch comprises a hollow drill body (1), along the inclined hole that circumferentially is provided with three inclinations equally spacedly, a jaw (2) is installed slidably in each inclined hole in the described drill body (1); The middle part of described drill body (1) is provided with a screw (3), and this screw (3) interconnects by screw thread with each described jaw (2); The front end of described drill body (1) is provided with a protheca (4), and the rear end is equipped with a back cover (5); Described back cover (5) by a perisporium (51) and certainly the end wall (52) that radially extends internally of the rear end of this perisporium (51) constitute, be formed with an endoporus (53) that can cooperate on the described end wall (52) with the outer surface of described drill body (1) rear end, it is characterized in that: described perisporium (51) and end wall (52) are embedded with an inserts (10), and described inserts (10) is formed with a through hole (53 ') corresponding to the position of described endoporus (53).
7, hand fastening drill clutch according to claim 6, it is characterized in that: the described through hole (53 ') on the described inserts (10) has at least one pair of side that is parallel to each other (54), and the described endoporus (53) on the described end wall (52) has and the shape of described side (54), the side that size is identical; The rear end of described drill body (1) is formed with the parallel plane that can cooperate with described side accordingly.
8, hand fastening drill clutch according to claim 6 is characterized in that: the described through hole (53 ') on the described inserts (10) has at least one pair of side that is parallel to each other (54), and the endoporus (53) on the described end wall (52) is a circular hole; The rear end of described drill body (1) is formed with the parallel plane that can cooperate with described side (54) accordingly.
9, hand fastening drill clutch according to claim 6, it is characterized in that: the described through hole (53 ') on the described inserts (10) is a polygon hole, described endoporus (53) on the described end wall (52) also is a polygon hole, its shape, big or small identical with described through hole (53 '); The rear end of described drill body (1) form can with the gengon that cooperates of described polygon hole.
10, according to any described hand fastening drill clutch in the claim 6 to 9, it is characterized in that: described inserts (10) is made by metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02291306 CN2584326Y (en) | 2002-12-17 | 2002-12-17 | Improved drill chuck backcover and closefisted drill chuck with the backcover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02291306 CN2584326Y (en) | 2002-12-17 | 2002-12-17 | Improved drill chuck backcover and closefisted drill chuck with the backcover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2584326Y true CN2584326Y (en) | 2003-11-05 |
Family
ID=33750180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02291306 Expired - Fee Related CN2584326Y (en) | 2002-12-17 | 2002-12-17 | Improved drill chuck backcover and closefisted drill chuck with the backcover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2584326Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100005B (en) * | 2007-06-29 | 2010-04-14 | 游友民 | Elastic cover for drill clamping head |
-
2002
- 2002-12-17 CN CN 02291306 patent/CN2584326Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101100005B (en) * | 2007-06-29 | 2010-04-14 | 游友民 | Elastic cover for drill clamping head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG SANOU MACHINE CO., LTD. Free format text: FORMER OWNER: SANOU DRILL CHUCK MANUFACTURING CO., LTD., TAIZHOU CITY Effective date: 20050624 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050624 Address after: 318050 long road hi tech Zone, Lunan Road, Luqiao District, Zhejiang, Taizhou Patentee after: Sanou Machinery Co., Ltd., Zhejiang Address before: 318050 long road, science and technology zone, Luqiao District, Zhejiang, Taizhou Patentee before: San-ou Drill Holder Manufacturing Co., Ltd., Taizhou City |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |