CN210587324U - Anti-displacement drill bit - Google Patents
Anti-displacement drill bit Download PDFInfo
- Publication number
- CN210587324U CN210587324U CN201921237767.0U CN201921237767U CN210587324U CN 210587324 U CN210587324 U CN 210587324U CN 201921237767 U CN201921237767 U CN 201921237767U CN 210587324 U CN210587324 U CN 210587324U
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- CN
- China
- Prior art keywords
- drill bit
- bit body
- installation head
- slot
- stop collar
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a prevent drill bit that shifts belongs to machining equipment technical field. It is including preventing aversion frock and drill bit body, prevents that the frock of aversion includes the installation head, and the slot has been seted up to the bottom of installation head, and the screw hole that two symmetries set up is seted up to the lateral wall of installation head, and two screw holes all are linked together with the slot, and equal threaded connection has the bolt that is used for fixed drill bit body, and the bottom of installation head is still threaded sleeve and is used for stabilizing the stop collar of drill bit body. The utility model discloses additionally install a stop collar additional, reduce the skew arm of force of the drill bit body through the stop collar to this increase drill bit body's stress intensity, thereby can prevent effectively that the drill bit body from shifting at the during operation.
Description
Technical Field
The utility model relates to a prevent drill bit that shifts belongs to machining equipment technical field.
Background
In punching or the tapping process to the part, generally need be used to bore and attack dual-purpose machine, current dual-purpose machine passes through the drill chuck and fixes the drill bit body, drives three-jaw chuck self-centering and centre gripping drill bit body in order to realize fixedly through the rotation, but because the drill bit body has certain length to the during operation impact force is big, this kind of mode of only fixing drill bit body a bit makes the drill bit body during operation aversion easily, causes the fracture even.
Disclosure of Invention
The utility model discloses the technical problem that will solve lies in: the anti-displacement drill bit solves the problem that a traditional drill bit is easy to displace during working.
The utility model discloses the technical problem that will solve takes following technical scheme to realize:
prevent drill bit that shifts, including preventing shift frock and drill bit body, prevent shift frock is including the installation head, the slot has been seted up to the bottom of installation head, the lateral wall of installation head is seted up two symmetrical screw holes that set up, two the screw hole all is linked together with the slot, and equal threaded connection has the bolt that is used for fixed drill bit body, the bottom of installation head is still threaded to be cup jointed the stop collar that is used for stabilizing the drill bit body.
As a preferred example, two symmetrically-arranged sliding grooves are formed in the top of the inner wall of each inserting groove, springs are fixedly connected to the inner walls of the two sliding grooves, round balls are fixedly connected to one ends of the two springs, and when the drill bit body extends into the inserting grooves, the two round balls are abutted to clamping grooves in the drill bit body.
As a preferred example, the bolt is a knurled bolt.
The utility model has the advantages that: the utility model discloses additionally install a stop collar additional, reduce the skew arm of force of the drill bit body through the stop collar to this increase drill bit body's stress intensity, thereby can prevent effectively that the drill bit body from shifting at the during operation.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 3 is an external schematic view of the present invention;
fig. 4 is a schematic diagram of stress analysis of the drill bit body in the prior art and the present invention (the left side is a schematic diagram of the prior art, and the right side is a schematic diagram of the present invention).
In the figure: the drilling machine comprises a mounting head 1, a threaded hole 2, a limiting sleeve 3, a drill bit body 4, a spring 5, a ball 6 and a bolt 7.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.
As shown in fig. 1-4, the anti-displacement drill bit comprises an anti-displacement tool and a drill bit body 4, the anti-displacement tool comprises an installation head 1, a slot is formed in the bottom of the installation head 1, two symmetrically-arranged threaded holes 2 are formed in the side wall of the installation head 1, the two threaded holes 2 are communicated with the slot, a bolt 7 for fixing the drill bit body 4 is connected with the slot through threads, and a stop collar 3 for stabilizing the drill bit body 4 is sleeved on the bottom of the installation head 1 through threads.
Adopt above-mentioned scheme, stop collar 3 and drill bit body 4's polished rod portion tight fit reduces the skew arm of force of drill bit body 4 through stop collar 3 to this increase drill bit body 4's stress intensity, thereby can prevent drill bit body 4 effectively and shift at the during operation.
The spout that two symmetries set up is seted up at the inner wall top of slot, the equal fixedly connected with spring 5 of the inner wall of two spouts, the equal fixedly connected with ball 6 of one end of two springs 5, when drill bit body 4 stretched into the slot in, two ball 6 all offset with the draw-in groove on the drill bit body 4.
Adopt above-mentioned scheme, drill bit body 4 stretches into the inside in-process of slot, and when drill bit body 4 removed to fixed position, ball 6 blocked the draw-in groove of drill bit body 4 under the effect of spring 5 for drill bit body 4 is installed at the correct position, and can not drop between fixed drill bit body 4.
The working principle is as follows: the mounting head 1 is fixed on a rotating shaft of the dual-purpose machine, firstly, the drill bit body 4 is sleeved into the limiting sleeve 3, then, the top of the drill bit body 4 is stretched into the slot, meanwhile, the limiting sleeve 3 is screwed at the bottom of the mounting head 1, and then, the position of the drill bit body 4 is adjusted, so that the top of the drill bit body 4 is clamped by the ball 6, and then, the bolt 7 is screwed in the threaded hole 2, so that the drill bit body 4 is completely fixed and cannot rotate.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. Prevent aversion drill bit, including preventing aversion frock and drill bit body (4), its characterized in that: prevent aversion frock is including installation head (1), the slot has been seted up to the bottom of installation head (1), screw hole (2) that two symmetries set up are seted up to the lateral wall of installation head (1), two screw hole (2) all are linked together with the slot, and equal threaded connection has bolt (7) that are used for fixed drill bit body (4), the bottom of installation head (1) is still threaded sleeve and is used for stabilizing stop collar (3) of drill bit body (4).
2. The anti-migration drill bit according to claim 1, wherein: the drill bit is characterized in that the top of the inner wall of the slot is provided with two symmetrically-arranged sliding grooves, two sliding grooves are formed in the top of the inner wall of the slot, the inner wall of each sliding groove is fixedly connected with a spring (5) and two balls (6) which are fixedly connected with one ends of the springs (5) respectively, and when the drill bit body (4) stretches into the slot, the balls (6) are abutted to clamping grooves in the drill bit body (4).
3. The anti-migration drill bit according to claim 1, wherein: the bolt (7) is a knurled bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921237767.0U CN210587324U (en) | 2019-08-01 | 2019-08-01 | Anti-displacement drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921237767.0U CN210587324U (en) | 2019-08-01 | 2019-08-01 | Anti-displacement drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210587324U true CN210587324U (en) | 2020-05-22 |
Family
ID=70712004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921237767.0U Active CN210587324U (en) | 2019-08-01 | 2019-08-01 | Anti-displacement drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210587324U (en) |
-
2019
- 2019-08-01 CN CN201921237767.0U patent/CN210587324U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |