CN210615236U - High-precision U drill - Google Patents
High-precision U drill Download PDFInfo
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- CN210615236U CN210615236U CN201921583414.6U CN201921583414U CN210615236U CN 210615236 U CN210615236 U CN 210615236U CN 201921583414 U CN201921583414 U CN 201921583414U CN 210615236 U CN210615236 U CN 210615236U
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- drill
- drilling rod
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- knife
- drill rod
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Abstract
The utility model provides a high accuracy U bores, includes handle of a knife, connecting portion and drilling rod, be provided with the helicla flute on the drilling rod, the inside drainage channel who links to each other with cavity in the handle of a knife that is provided with of drilling rod, cutting edge sword and outer cutting edge sword in the drilling rod top helicla flute internal correspondence is fixed with, and the correspondence is provided with the conducting bar on the outer wall of drilling rod top, the utility model discloses can polish the processing to the hole, can effectively improve the precision in hole.
Description
Technical Field
The invention belongs to the technical field of machining cutters, and particularly relates to a high-precision U drill.
Background
The U bores also called fast and bores, is an interior cold drill bit, arranges and cuts well, and is efficient, can drill hole in succession, and current U bores mostly do not possess the function of polishing, and after having processed the hole, the inner wall in hole always can appear the condition of unsmooth, seriously influences the precision in hole.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a high-precision U drill, which can polish holes and effectively improve the precision of the holes.
The technical scheme of the invention is as follows: the utility model provides a high accuracy U bores, includes handle of a knife, connecting portion and drilling rod, be provided with the helicla flute on the drilling rod, drilling rod inside is provided with the drainage channel who links to each other with cavity in the handle of a knife, drill rod top helicla flute internal correspondence is fixed with interior sword and outer sword, and the correspondence is provided with the conducting bar on the outer wall of drilling rod top.
Preferably, the conducting bar comprises a base below and a blade above, the peripheral contour of the blade is curved, and the conducting bar is provided with a mounting hole.
Preferably, the length of the drill rod 3 is 107mm, and the length of the tool shank 1 is 60 mm.
Preferably, the diameter of the radially largest cross-section of the drill rod is 24.5 mm.
The invention has the beneficial effects that: and polishing the holes in the drilling process, so that the machining precision of the holes is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a top view of a conducting bar;
FIG. 4 is a side view of a conducting bar;
in the figure: 1. the drill rod comprises a cutter handle, 2, a connecting part, 3, a drill rod, 31, a spiral groove, 4, an inner edge cutter, 5, an outer edge cutter, 6, a guide bar, 61, a base, 62, a blade, 63 and a mounting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, a high-precision U-shaped drill comprises a tool shank 1, a connecting part 2 and a drill rod 3, wherein the length of the drill rod 3 is 107mm, the diameter of the radial largest section of the drill rod is 24.5mm, the length of the tool shank 1 is 60mm, a spiral groove 31 is formed in the drill rod 3, a drainage channel connected with a cavity in the tool shank 1 is arranged in the drill rod 3, an inner blade knife 4 and an outer blade knife 5 are correspondingly fixed in the spiral groove 31 in the top of the drill rod 3, mounting grooves are correspondingly formed in the positions, corresponding to the inner blade knife 4 and the outer blade knife 5, of the top of the drill rod 3 and used for fixing the inner blade knife 4 and the outer blade knife 5, a guide bar 6 is correspondingly arranged on the outer wall of the top of the drill rod 3, and a mounting groove is correspondingly formed in the position, corresponding to the.
As shown in fig. 3 and 4, the guide bar 6 includes a lower base 61 and an upper blade 62, the peripheral profile of the blade 62 is curved, the guide bar 6 is provided with a mounting hole 63, the blade 62 on the guide bar 6 can perform polishing treatment on the hole during a specific drilling process, the polishing treatment of the hole is completed during a machining process, subsequent treatment is not needed, and the machining precision of the hole is ensured.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a high accuracy U bores, includes handle of a knife (1), connecting portion (2) and drilling rod (3), be provided with helicla flute (31) on drilling rod (3), drilling rod (3) inside be provided with handle of a knife (1) cavity continuous drainage channel, its characterized in that: an inner edge cutter (4) and an outer edge cutter (5) are correspondingly fixed in the spiral groove (31) at the top of the drill rod (3), and a guide bar (6) is correspondingly arranged on the outer wall at the top of the drill rod (3).
2. The high precision U-drill of claim 1, wherein: the conducting bar (6) comprises a base (61) below and a blade (62) above, the contour of the periphery of the blade (62) is curved, and the conducting bar (6) is provided with a mounting hole (63).
3. The high precision U-drill of claim 1, wherein: the length of the drill rod (3) is 107mm, and the length of the tool shank (1) is 60 mm.
4. The high-precision U-drill according to claim 3, characterized in that: the diameter of the radial largest section of the drill rod is 24.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921583414.6U CN210615236U (en) | 2019-09-23 | 2019-09-23 | High-precision U drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921583414.6U CN210615236U (en) | 2019-09-23 | 2019-09-23 | High-precision U drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210615236U true CN210615236U (en) | 2020-05-26 |
Family
ID=70765348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921583414.6U Active CN210615236U (en) | 2019-09-23 | 2019-09-23 | High-precision U drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210615236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605426A (en) * | 2019-09-23 | 2019-12-24 | 浙江甬岭数控刀具有限公司 | High-precision U drill |
-
2019
- 2019-09-23 CN CN201921583414.6U patent/CN210615236U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110605426A (en) * | 2019-09-23 | 2019-12-24 | 浙江甬岭数控刀具有限公司 | High-precision U drill |
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