CN218503423U - Drill chuck - Google Patents
Drill chuck Download PDFInfo
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- CN218503423U CN218503423U CN202121054423.3U CN202121054423U CN218503423U CN 218503423 U CN218503423 U CN 218503423U CN 202121054423 U CN202121054423 U CN 202121054423U CN 218503423 U CN218503423 U CN 218503423U
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- clamping part
- clamping
- drill chuck
- drill
- positioning
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Abstract
The invention provides a drill chuck which is used for stabilizing tools such as a clamping tool bit and the like during machining, and particularly comprises a first clamping part, a second clamping part and a positioning part, wherein the first clamping part and the second clamping part are connected through the positioning part, and the first clamping part and the second clamping part are matched with a clamping drill bit or a cutter; the end head of one end of the first clamping part, which is far away from the second clamping part, is provided with an inner side chamfer. The utility model provides a drill chuck utilizes first clamping part to set up chamfer increase of service life, utilizes first clamping part to set up the pedestal and improves clamping stability, and the design of second clamping part inclined plane makes the holder atress evenly be difficult to the pine take off, and complete equipment simple structure, centre gripping are stable.
Description
Technical Field
The disclosure relates to the technical field of machining tools, in particular to a drill chuck for clamping a drill bit.
Background
With the development of social productivity, drill chucks are widely used, and in machines such as bench drills, electric hand drills or machine tools used in the industries of machine manufacturing, electronic and electrical products, building installation, home decoration and the like, tools such as drill bits, cutters and the like need to be clamped by the drill chucks for working. Although long-term application and improvement of drill chucks for holding tools such as drills and milling cutters on the working shafts of these machines have been made, there still exist a number of disadvantages.
Currently, there are many proposals for the prior art of clamping a drill bit or a tool by a drill bit holder, for example, the publication number is: the invention patent of CN105033298B discloses a drill chuck, and specifically discloses that the solution includes a chuck body having a receiving portion at an end of an axial back side thereof; a jaw adjustable relative to a chuck axis; and a clamping sleeve for adjusting the clamping jaw. The adapter body can be inserted into the receptacle and can be coupled in a torque-transmitting manner in the receptacle, and for the releasable connection to a drill spindle of a drill press has an adapter receptacle and at least one locking element which can be adjusted by means of an unlocking sleeve in a wall of the adapter receptacle. The advantage of this solution is that the drill chuck can be produced, assembled and ground in mass conditions, while an adapter is provided for achieving a quick change feature, which can be used in the drilling spindle housing of a conventional chuck body.
For example, the publication number is: the invention patent of CN104411432B discloses a drill chuck, and specifically discloses a scheme that includes a front body, a rear body, and clamping jaws, wherein the clamping jaws are provided with threads, the rear body is provided with a driving gear, a driven gear is arranged between the clamping jaws and the rear body, the driving gear is matched with the driven gear, the driven gear is internally provided with threads, and the threads are matched with the threads of the clamping jaws. Because the driving gear and the driven gear of the lower end of the rear body are mutually matched, the internal thread of the driven gear is matched with the thread of the clamping jaw, and the driven gear is fixed relative to the front body, when the drill chuck is applied to an electric drill or other tools which are continuously knocked during operation, the clamping jaw is limited by the gear, and the clamping jaw cannot be continuously clamped, so that a proper clamping force is kept, the problem that the drill chuck is hard to open or even cannot be opened is avoided, meanwhile, the cutter is also protected, and dents caused by too large clamping force cannot be left on the cutter. The proposal solves the problems that the prior drill chuck is inconvenient to open and easy to damage the cutter due to too large clamping force of the drill chuck.
From the content disclosed in the prior art, the existing drill chuck for clamping a drill bit or a cutter has the problems of complex structure, unstable machining precision caused by easy shaking of the clamped drill bit or cutter and the like, and in the actual use process, the drill bit or cutter is easy to shake to cause inaccurate machining of a machined part, even loosens to cause scrapping of the workpiece. Therefore, how to provide a drill chuck capable of stably clamping a drill bit or a cutter becomes a new technical problem.
SUMMERY OF THE UTILITY MODEL
The disclosure provides a drill chuck aiming at the problems of complicated structure, unstable machining precision caused by easy shaking of a clamped drill bit or a clamped cutter and the like in the prior art, and the tool is used for stably clamping tools such as a cutter head in machining.
Further, one of the concepts of the present disclosure resides in the use of a drill chuck including a mounting end having a first clamping portion and a second clamping portion cooperating to clamp a drill bit or a tool.
Still further, another idea of the present disclosure is that the first clamping portion is provided with an inner chamfer at an end remote from the second clamping portion for buffering a mounted tool or the like at the time of machining.
Still further, another concept of the present disclosure is that the first clamping part is provided with at least one through hole for fixing the drill against rotation.
Furthermore, the other concept of the present disclosure is that the outer wall of the second fixing portion of the drill chuck is an inclined surface, which is beneficial to uniform stress to stabilize the clamping member.
Furthermore, the disclosure provides a drill chuck for stably clamping tools such as a tool bit and the like during machining, which comprises a first clamping part, a second clamping part and a positioning part, wherein the first clamping part and the second clamping part are connected through the positioning part, and the positioning part is used for fixing the drill chuck on instruments such as a machine tool and the like; the first clamping part and the second clamping part are matched to clamp a drill bit or a cutter.
Furthermore, an inner side chamfer is arranged at one end of the first clamping part far away from the second clamping part.
The chamfer is arranged on the inner side of the end head of the drill chuck, so that the impact force on the cutter can be reduced during processing, the cutter is buffered within a certain range, and the abrasion of the drill chuck on tools such as a drill bit or the cutter is reduced.
Furthermore, an outer chamfer is further arranged at one end of the first clamping part far away from the second clamping part.
The chamfer angle not only improves the aesthetic degree of the drill bit, but also can delay the problems of deformation, crack and the like of the drill chuck, and greatly prolongs the service life of the drill chuck.
Furthermore, the side surface of the first clamping part is provided with at least one through hole, and the through hole is provided with a screw thread matched screw for tightly pushing the drill bit, so that the drill bit does not rotate in the drill chuck.
The tools such as the drill bit or the cutter and the like are arranged in the drill chuck with gaps, and can rotate in the drill chuck under the stress action of the tools such as the drill bit and the like in the machining process, so that the machining efficiency is greatly reduced. And this application can utilize the screw to pass the through-hole and tightly push up the drill bit in the drill chuck, even still can be stable after the atress, improved machining efficiency.
Furthermore, a seat body is arranged at one end of the first clamping portion close to the second clamping portion, the first clamping portion is connected with the positioning portion through the seat body, and the area of the surface of the connecting portion of the seat body and the positioning portion is larger than the area of the contact surface of the connecting portion.
The setting of pedestal has improved the stability of first clamping part centre gripping and connection greatly.
Furthermore, the outer wall of the second clamping part is an inclined plane, and the direction of the inclined plane of the second clamping part is that the end close to the first clamping part extends inwards to the end on the other side of the second clamping part.
The second clamping part is provided with the inclined surface, so that the stress of the first clamping part is uniform, and the stability of tools such as a drill bit or a cutter clamped by a drill chuck is improved.
Furthermore, the area of the surface of the joint of the second clamping part and the positioning part is larger than the area of the contact surface of the connecting part.
The positioning part is concave, which is beneficial to clamping and drilling of machine tools and other instruments and is beneficial to stable installation.
Furthermore, the positioning part is provided with a groove, and the groove is convenient for mounting and dismounting the drill chuck.
The drill chuck is used for stabilizing tools such as a clamping tool bit and the like during machining, and particularly comprises a first clamping part, a second clamping part and a positioning part, wherein the first clamping part and the second clamping part are connected through the positioning part, and the first clamping part and the second clamping part are matched with a clamping drill bit or a clamping tool; an inner side chamfer is arranged at one end of the first clamping part far away from the second clamping part; an outer chamfer is further arranged at one end of the first clamping part far away from the second clamping part; the side surface of the first clamping part is provided with at least one through hole, and the through hole is provided with a screw matched with a screw for tightly propping a drill bit so that the drill bit does not rotate in a drill chuck; the first clamping part is provided with a base body at one end close to the second clamping part, the first clamping part is connected with the positioning part through the base body, and the area of the surface of the connecting part of the base body and the positioning part is larger than the area of the contact surface of the connecting part; the outer wall of the second clamping part is an inclined plane, and the direction of the inclined plane of the second clamping part is that the end close to the first clamping part extends inwards to the end on the other side of the second clamping part; the area of the surface of the joint of the second clamping part and the positioning part is larger than the area of the contact surface of the connecting part; the positioning part is provided with a groove, and the groove is convenient for mounting and dismounting the drill chuck.
By using the drill chuck provided by the disclosure to clamp the drill bit, the concentricity can reach within 3 mu m after installation, and the processing precision is far higher than that of most ER chucks in the prior art. And the structure of the device greatly increases the rigidity of the micro drill bit and prolongs the service life of the cutter.
Compared with the prior art, the drill chuck provided by the disclosure has the advantages that the first clamping part is used for setting the chamfer, the service life is prolonged, the first clamping part is used for setting the seat body to improve the clamping stability, the inclined surface design of the second clamping part enables the clamping piece to be stressed uniformly and not to be loosened easily, and the whole set of device is simple in structure and stable in clamping.
Drawings
The present disclosure will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of illustrating the preferred embodiments and should not be taken as limiting the scope of the present disclosure. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.
FIG. 1: the structure of a drill chuck that this disclosure provides looks ahead schematic diagram;
FIG. 2 is a schematic diagram: the cross-sectional view of a drill chuck that this disclosure provides;
wherein, 1, a first clamping part; 2. a second clamping portion; 3. a positioning part; 4. chamfering the inner side; 5. chamfering the outer side; 6. a through hole; 7. a base body; 8. a bevel; 9. and (6) positioning a groove.
Detailed Description
The present disclosure is described in detail below with reference to the attached drawing figures.
In order to make the objects, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the disclosure and are not intended to limit the disclosure.
Fig. 1 and 2 are a specific embodiment of the present disclosure, which is described in detail as follows:
fig. 1 and fig. 2 are a front view and a cross-sectional view, respectively, of an embodiment of the present disclosure, which provides a drill chuck for stabilizing a tool such as a chuck bit during machining, and specifically includes a first clamping portion 1, a second clamping portion 2, and a positioning portion 3, where the first clamping portion 1 and the second clamping portion 2 are connected by the positioning portion 3; the first clamping part 1 and the second clamping part 2 are matched to clamp a drill bit or a cutter;
an inner chamfer 4 is arranged at one end of the first clamping part 1 far away from the second clamping part 2;
the end head of one end of the first clamping part 1 far away from the second clamping part 2 is also provided with an outer chamfer 5.
The inner side chamfer 4 arranged on the end head of the drill chuck can reduce the impact force on the cutter during processing, so that the cutter can buffer in a certain range, and the abrasion of the drill chuck on tools such as a drill bit or the cutter is reduced.
The chamfer angle not only improves the aesthetic degree of the drill bit, but also can delay the problems of deformation, crack and the like of the drill chuck, and greatly prolongs the service life of the drill chuck.
Further, the present disclosure may also provide an embodiment as follows:
in the embodiment, the drill chuck is used for stably clamping tools such as tool bits and the like during machining, and particularly comprises a first clamping part 1, a second clamping part 2 and a positioning part 3, wherein the first clamping part 1 and the second clamping part 2 are connected through the positioning part 3; the first clamping part 1 and the second clamping part 2 are matched to clamp a drill bit or a cutter; an inner chamfer 4 is arranged at one end of the first clamping part 1 far away from the second clamping part 2; an outer chamfer 5 is further arranged at one end of the first clamping part 1 far away from the second clamping part 2;
the side surface of the first clamping part 1 is provided with at least one through hole 6, and the through hole 6 is provided with a screw thread matched screw for tightly pushing a drill bit, so that the drill bit does not rotate in a drill chuck.
The tools such as the drill bit or the cutter and the like are arranged in the drill chuck with gaps, and can rotate in the drill chuck under the stress action of the tools such as the drill bit and the like in the machining process, so that the machining efficiency is greatly reduced. The through hole 6 can be used for tightly propping the drill bit in the drill chuck by using a screw, and the drill chuck can still be stable even after being stressed, so that the processing efficiency is improved.
Further, the present disclosure may also provide an embodiment as follows:
in the embodiment, the drill chuck is used for stably clamping tools such as tool bits and the like during machining, and particularly comprises a first clamping part 1, a second clamping part 2 and a positioning part 3, wherein the first clamping part and the second clamping part 2 are connected through the positioning part 3; the first clamping part 1 and the second clamping part 2 are matched to clamp a drill bit or a cutter; an inner chamfer 4 is arranged at one end of the first clamping part 1 far away from the second clamping part 2; an outer chamfer 5 is further arranged at one end of the first clamping part 1 far away from the second clamping part 2; the side surface of the first clamping part 1 is provided with at least one through hole 6, and the through hole 6 is provided with a screw thread matching screw for tightly propping a drill bit, so that the drill bit does not rotate in a drill chuck;
the clamping device is characterized in that a seat body 7 is arranged at one end of the first clamping part 1 close to the second clamping part 2, the first clamping part 1 is connected with the positioning part 3 through the seat body 7, and the area of the joint of the seat body 7 and the positioning part 3 is larger than the contact surface area of the connecting part.
The stability of the centre gripping of first clamping part 1 and connection has been improved greatly in the setting of pedestal 7.
Further, the present disclosure may also provide an embodiment as follows:
in the embodiment, the drill chuck is used for stabilizing tools such as a clamping tool bit and the like during machining, and particularly comprises a first clamping part 1, a second clamping part 2 and a positioning part 3, wherein the first clamping part 1 and the second clamping part 2 are connected through the positioning part 3; the first clamping part 1 and the second clamping part 2 are matched to clamp a drill bit or a cutter; an inner chamfer 4 is arranged at one end of the first clamping part 1 far away from the second clamping part 2; an outer chamfer 5 is further arranged at one end of the first clamping part 1 far away from the second clamping part 2; the side surface of the first clamping part 1 is provided with at least one through hole 6, and the through hole 6 is provided with a screw thread matched screw for tightly propping against a drill bit so that the drill bit does not rotate in a drill chuck; a seat body 7 is arranged at one end of the first clamping part 1 close to the second clamping part 2, the first clamping part 1 is connected with the positioning part 3 through the seat body 7, and the area of the surface of the connection part of the seat body 7 and the positioning part 3 is larger than the area of the contact surface of the connecting part;
the outer wall of the second clamping part 2 is an inclined plane 8, and the direction of the inclined plane 8 of the second clamping part is that the end close to the first clamping part extends inwards to the end on the other side of the second clamping part 2.
The inclined surface 8 is arranged on the second clamping part 2, so that the stress of the first clamping part 1 is uniform, and the stability of a drill chuck for clamping tools such as a drill bit or a cutter is improved.
Further, the present disclosure may also provide an embodiment as follows:
in the embodiment, the drill chuck is used for stabilizing tools such as a clamping tool bit and the like during machining, and particularly comprises a first clamping part 1, a second clamping part 2 and a positioning part 3, wherein the first clamping part 1 and the second clamping part 2 are connected through the positioning part 3; the first clamping part 1 and the second clamping part 2 are matched to clamp a drill bit or a cutter; an inner chamfer 4 is arranged at one end of the first clamping part 1 far away from the second clamping part 2; an outer chamfer 5 is further arranged at one end of the first clamping part 1 far away from the second clamping part 2; the side surface of the first clamping part 1 is provided with at least one through hole 6, and the through hole 6 is provided with a screw thread matched screw for tightly propping against a drill bit so that the drill bit does not rotate in a drill chuck; a seat body 7 is arranged at one end of the first clamping part 1 close to the second clamping part 2, the first clamping part 1 is connected with the positioning part 3 through the seat body 7, and the area of the surface of the connection part of the seat body 7 and the positioning part 3 is larger than the area of the contact surface of the connecting part; the outer wall of the second clamping part 2 is an inclined surface 8, and the direction of the inclined surface 8 of the second clamping part 2 is that the end close to the first clamping part 1 extends inwards to the end on the other side of the second clamping part 2; the area of the surface of the joint of the second clamping part 2 and the positioning part 3 is larger than the area of the contact surface of the connecting part.
The area of the surface of the joint of the second clamping part 2 and the positioning part 3 is larger than the area of the contact surface of the connecting part;
the positioning part 3 is provided with a groove 9, and the groove 9 is convenient for mounting and dismounting a drill clamp.
The positioning part 3 is concave, which is beneficial to clamping and drilling of machines and other instruments and is beneficial to installation.
The drill chuck that this embodiment provided utilizes first clamping part 1 to set up chamfer increase of service life, utilizes first clamping part 1 to set up pedestal 7 and improves clamping stability, and the design of 2 inclined planes 8 of second clamping part makes the holder atress evenly be difficult to the pine take off, and complete equipment simple structure, centre gripping are stable.
The present disclosure has been described in detail above, and the principles and embodiments of the present disclosure have been explained herein using specific examples, which are provided only to assist understanding of the present disclosure and the core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present disclosure, several improvements and modifications can be made to the present disclosure, and these improvements and modifications also fall into the protection scope of the claims of the present disclosure.
Claims (7)
1. The drill chuck is characterized by comprising a first clamping part, a second clamping part and a positioning part, wherein the first clamping part and the second clamping part are connected through the positioning part and are matched with a drill bit or a cutter to clamp the drill bit or the cutter; the end head of one end of the first clamping part, which is far away from the second clamping part, is provided with an inner side chamfer.
2. A drill chuck according to claim 1, wherein the first clamping part is further provided with an outer chamfer at the end distal from the second clamping part.
3. A drill chuck according to claim 1, wherein the first clamping part is provided with at least one through hole in the side, said through hole being provided with a screw-engaging screw for tightening the drill bit so that the drill bit does not rotate within the drill chuck.
4. The drill chuck as claimed in claim 1, wherein the first clamping portion has a seat body at an end thereof adjacent to the second clamping portion, the first clamping portion is connected to the positioning portion through the seat body, and the area of the connecting portion between the seat body and the positioning portion is larger than the area of the contact surface between the connecting portion and the seat body.
5. The drill chuck as claimed in claim 1, wherein the outer wall of the second clamping portion is a bevel, and the bevel of the second clamping portion is oriented to extend inwardly from the end head adjacent to the first clamping portion to the end head at the other side of the second clamping portion.
6. The drill chuck as claimed in claim 1, wherein the area of the surface where the second clamping portion is connected with the positioning portion is larger than the area of the contact surface of the connecting portion.
7. A drill chuck according to claim 1, wherein the locating portion is provided with a recess which facilitates mounting and dismounting of the drill chuck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054423.3U CN218503423U (en) | 2021-05-17 | 2021-05-17 | Drill chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121054423.3U CN218503423U (en) | 2021-05-17 | 2021-05-17 | Drill chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218503423U true CN218503423U (en) | 2023-02-21 |
Family
ID=85205578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121054423.3U Active CN218503423U (en) | 2021-05-17 | 2021-05-17 | Drill chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218503423U (en) |
-
2021
- 2021-05-17 CN CN202121054423.3U patent/CN218503423U/en active Active
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