CN210435429U - Cross percussion drill bit with positioning tip - Google Patents
Cross percussion drill bit with positioning tip Download PDFInfo
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- CN210435429U CN210435429U CN201921120978.6U CN201921120978U CN210435429U CN 210435429 U CN210435429 U CN 210435429U CN 201921120978 U CN201921120978 U CN 201921120978U CN 210435429 U CN210435429 U CN 210435429U
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- positioning tip
- cross
- percussion drill
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Abstract
The utility model discloses a cross percussion drill bit with a positioning tip, which comprises four blades which are prefabricated into a whole and have the same structure, wherein the included angle between every two adjacent blades is 90 degrees, and the wiring part of the adjacent side surfaces of the two adjacent blades is provided with a chip groove; the drill bit further comprises a positioning tip prefabricated with the blades into a whole, and the positioning tip is arranged on the vertex of the joint of the four blades. The utility model discloses a cross percussion drill piece of area location point has advantages such as simple and practical, long service life, drilling efficiency height and the simple swift of positioning process.
Description
Technical Field
The utility model relates to a drill bit field especially relates to a cross percussion drill piece of area location point.
Background
The existing percussion drill bit has the problems of insufficient rigidity, short service life, low drilling efficiency and the like due to unreasonable structural arrangement and the like. Before the drilling operation, an operator needs to draw a rough drilling center on the surface to be drilled by using a marking tool, and then presses out a small concave pit at the drilling center on the surface to be drilled by using a positioning device, so that the drill bit is conveniently positioned, the operation process is complex, and time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that to the problem that prior art exists, provide a simple and practical, long service life, drilling efficiency height and the simple swift cross percussion drill piece of taking location point of location process.
In order to solve the technical problem, the utility model provides a technical scheme does:
a cross percussion drill bit with a positioning tip comprises four blades which are prefabricated into a whole and have the same structure, the included angle between every two adjacent blades is 90 degrees, and chip grooves are formed in the wiring positions of the adjacent side surfaces of the two adjacent blades; the drill bit further comprises a positioning tip prefabricated with the blades into a whole, and the positioning tip is arranged on the vertex of the joint of the four blades.
As a further improvement of the above technical solution:
the apex angle α of the locating tip is less than the included angle β of the top edges of the two opposing blades.
The chip groove is an arc surface which is tangent with the front knife surface of the blade.
Compared with the prior art, the utility model has the advantages of:
the utility model provides a cross percussion drill bit of area location point, including four blades that the structure is the same of prefabricating as an organic whole, contained angle between two adjacent blades is 90 degrees. Four blades simultaneous working can improve the efficiency of drilling greatly to compare in current X type drill plate, the utility model discloses a cross type drill plate structure is more symmetrical, when carrying out the drilling operation, and the atress also can be more even unanimous, and vibrations and noise are all littleer in the use, have prolonged the life-span of drill plate, have optimized the service environment of drill plate.
The drill bit further comprises a positioning tip prefabricated with the blades into a whole, and the positioning tip is arranged on the vertex of the joint of the four blades. The locating point can be accurately located before drilling operation, a marking tool, a locating device and the like are not needed to be used for operation, the phenomenon of deviation of a drill can be reduced, vibration and slipping are reduced, and the service life of the blade is prolonged.
Drawings
FIG. 1 is a schematic perspective view of a cross-shaped percussion drill with a positioning tip according to the present invention;
FIG. 2 is a schematic structural view of the cross-shaped percussion drill with a positioning tip according to the present invention;
fig. 3 is a left side view structure diagram of the cross percussion drill with positioning tip of the present invention.
Illustration of the drawings: 1. a blade; 2. a chip groove; 3. and (4) positioning the tip.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Example (b):
as shown in fig. 1 and 2, the cross-shaped percussion drill bit with a positioning tip of the present embodiment includes four blades 1 with the same structure prefabricated as a whole, an included angle between each two adjacent blades 1 is 90 degrees, and a connecting line of adjacent side surfaces of the two adjacent blades 1 is provided with a chip discharge groove 2, so that chips can be discharged conveniently; the drill bit further comprises a positioning tip 3 prefabricated with the blades 1 into a whole, and the positioning tip 3 is arranged on the vertex of the joint of the four blades 1.
Four blades 1 simultaneous workings can improve the efficiency of drilling greatly to compare in current X type drill plate, the utility model discloses a cross type drill plate structure is more symmetrical, when carrying out the drilling operation, and the atress also can be more even unanimous, and vibrations and noise are all littleer in the use, have prolonged the life-span of drill plate, have optimized the service environment of drill plate. The drill bit further comprises a positioning tip 3 prefabricated with the blades 1 into a whole, and the positioning tip 3 is arranged on the vertex of the joint of the four blades 1. The positioning tip 3 can be accurately positioned before drilling operation, so that a marking tool, a positioning device and the like are not needed to be used for operation, the phenomenon of deviation of a drill can be reduced, vibration and slipping are reduced, and the service life of the blade is prolonged.
In this embodiment, as shown in fig. 3, the angle of the apex angle α of the positioning tip 3 is smaller than the included angle β of the top edges of the two opposite blades 1, so that the positioning position can be observed conveniently, and the positioning accuracy can also be improved.
In this embodiment, the chip groove 2 is an arc surface, and the arc surface is tangent to the rake face of the blade 1, so that chips can smoothly flow out of the working area.
The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention should be regarded as the protection scope of the present invention.
Claims (3)
1. The utility model provides a cross percussion drill bit of area location point which characterized in that: the cutting tool comprises four blades (1) which are prefabricated into a whole and have the same structure, the included angle between every two adjacent blades (1) is 90 degrees, and chip grooves (2) are formed in the wiring positions of the adjacent side surfaces of the two adjacent blades (1); the drill bit further comprises a positioning tip (3) prefabricated with the blade (1) into a whole, and the positioning tip (3) is arranged on the top point of the joint of the four blades (1).
2. The cross-shaped percussion drill bit with a pilot bit according to claim 1, wherein the angle of apex angle α of the pilot bit (3) is smaller than the angle of the angle β of the top edges of the two opposing blades (1).
3. The cross-shaped percussion drill bit with a pilot bit according to claim 1, wherein: the chip groove (2) is an arc surface which is tangent with the front knife surface of the blade (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921120978.6U CN210435429U (en) | 2019-07-17 | 2019-07-17 | Cross percussion drill bit with positioning tip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921120978.6U CN210435429U (en) | 2019-07-17 | 2019-07-17 | Cross percussion drill bit with positioning tip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210435429U true CN210435429U (en) | 2020-05-01 |
Family
ID=70405793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921120978.6U Active CN210435429U (en) | 2019-07-17 | 2019-07-17 | Cross percussion drill bit with positioning tip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210435429U (en) |
-
2019
- 2019-07-17 CN CN201921120978.6U patent/CN210435429U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Cross shaped impact drill piece with positioning tip Effective date of registration: 20211123 Granted publication date: 20200501 Pledgee: Huarong Bank of Xiangjiang Limited by Share Ltd. 51 Zhuzhou branch Pledgor: ZHUZHOU JINGGONG CEMENTED CARBIDE Co.,Ltd. Registration number: Y2021980013080 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20221027 Granted publication date: 20200501 Pledgee: Huarong Bank of Xiangjiang Limited by Share Ltd. 51 Zhuzhou branch Pledgor: ZHUZHOU JINGGONG CEMENTED CARBIDE Co.,Ltd. Registration number: Y2021980013080 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |