CN211028236U - Two-side chamfering and drilling tool - Google Patents
Two-side chamfering and drilling tool Download PDFInfo
- Publication number
- CN211028236U CN211028236U CN201921049831.2U CN201921049831U CN211028236U CN 211028236 U CN211028236 U CN 211028236U CN 201921049831 U CN201921049831 U CN 201921049831U CN 211028236 U CN211028236 U CN 211028236U
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- drilling
- chamfer
- cutter
- sided
- tool
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- 238000005553 drilling Methods 0.000 title claims abstract description 52
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 3
- 239000010937 tungsten Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000010354 integration Effects 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a two-sided chamfer drilling tool, including the drilling rod, this instrument formula as an organic whole processing forms, the drilling rod top is drilling portion, drilling portion end-to-end connection bracing piece, drilling portion sets up the anti-chamfer sword with the bracing piece junction, the drilling rod is along setting up the chamfer sword with the being connected of bracing piece outward. The utility model discloses a drilling portion, the anti-chamfer sword and the last chamfer sword of directly processing out on the drilling rod make drilling and two-sided chamfer integration, only need a clamping during the use, reduce the clamping time when reducing the frock station, reduce the error that the secondary clamping brought, reduce cutter process time, the chamfer precision has been guaranteed simultaneously to cutter tool changing time, and the concentricity requirement has been guaranteed to two-sided chamfer on a centre of a circle.
Description
Technical Field
The utility model belongs to the drilling tool field, more specifically relates to a two sides chamfer drilling tool.
Background
In machining, it is generally necessary to perform both-side chamfering treatment on a punched workpiece. The common machining practice is to punch and chamfer one face in one direction and to solve the other by deburring; or carrying out secondary clamping, positioning by using the drilled hole, and chamfering the hole opening angle from the other direction. The operations need two working procedures, more tool stations are needed, more time is needed, errors are easy to generate in secondary clamping, and chamfering precision and concentricity of chamfers on two sides cannot be well guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming above not enough, designing a two-sided chamfer drilling tool, drilling and chamfer integral type design only need a clamping, reduce the clamping time when reducing the frock station, reduce the error that the secondary clamping brought, reduce cutter process time, cutter tool changing time has guaranteed chamfer precision and concentricity requirement simultaneously.
In order to realize the above-mentioned purpose, the utility model provides a two sides chamfer drilling tool, including the drilling rod, this instrument formula as an organic whole processing forms, the drilling rod top is drilling portion, drilling portion tail end joint support pole, drilling portion sets up the anti-chamfer sword with the bracing piece junction, the drilling rod is along setting up the chamfer sword with being connected of bracing piece outer.
The top end of the drilling part of the utility model is conical.
Diameter D of the drilling part2Smaller than the diameter D of the drill rod1Diameter D of the support rod3Is larger than the diameter D of the drill hole part2Less than half of the diameter D of the drill hole2Minus twice the chamfer width D, i.e. D2/2<D3<D2-2d。
Within 1mm longer than the thickness H of the workpiece to be processed, namely H < H + 1.
The knife face of anti-chamfer sword is 45 inclined planes with the knife face of last chamfer sword, and the chamfer width can be according to the dimensional requirement setting of waiting to process the work piece.
The drill bit portion, the reverse chamfer cutter and the upper chamfer cutter of the tool are carbide cutters, preferably tungsten steel cutters.
When the tool is used, the drilling is firstly carried out, the drilling is completed, the chamfering is carried out, the reference point is not returned after the drilling, the suitable height is lifted, and the reverse chamfer part is processed by the reverse chamfer cutter.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a drilling portion, the anti-chamfer sword and the last chamfer sword of directly processing out on the drilling rod make drilling and two-sided chamfer integration, only need a clamping during the use, reduce the clamping time when reducing the frock station, reduce the error that the secondary clamping brought, reduce cutter process time, the chamfer precision has been guaranteed simultaneously to cutter tool changing time, and the concentricity requirement has been guaranteed to two-sided chamfer on a centre of a circle.
Drawings
Fig. 1 is a schematic structural view of a two-sided chamfer drilling tool of the present invention.
Figure 2 is a two-sided chamfer drilling tool size code plot.
In the figure: 1-drill rod, 2-drill hole part, 3-support rod, 4-reverse chamfer cutter and 5-upper chamfer cutter.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings and specific examples.
Examples
According to the two-sided chamfer drilling tool shown in figure 1, the two-sided chamfer drilling tool comprises a drill rod 1, the tool is processed as an integral type, the top end of the drill rod 1 is a drilling part 2, a tail end of the drilling part 2 is connected with a supporting rod 3, an inverted chamfer cutter 4 is arranged at the joint of the drilling part 2 and the supporting rod 3, and an upper chamfer cutter 5 is arranged on the outer edge of the connecting surface of the drill rod 1 and the supporting rod 3.
The top end of the drilling part 2 in the embodiment is conical.
Diameter D of the drilling portion 2 according to the embodiment2Is smaller than the diameter D of the drill rod 113 diameter D of the support rod3Is larger than the diameter D of the drill hole part2Less than half of the diameter D of the drill hole2Minus twice the chamfer width D, the chamfer width is 0.4mm in this embodiment, D2/2<D3<D2-0.8。
In this embodiment, the length H of the support rod 3 is within 1mm longer than the thickness H of the workpiece to be processed, i.e., H < H + 1.
In this embodiment, the knife surface of the reverse chamfer knife 4 and the knife surface of the upper chamfer knife 5 are both inclined surfaces.
In the embodiment, the drill head 2, the reverse chamfer cutter 4 and the upper chamfer cutter 5 of the tool are all tungsten steel cutters.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (5)
1. A two-side chamfering drilling tool comprises a drill rod (1) and is characterized in that the tool is processed integrally, a drilling part (2) is arranged at the top end of the drill rod (1), the tail end of the drilling part is connected with a supporting rod (3), an inverted chamfering cutter (4) is arranged at the joint of the drilling part (2) and the supporting rod (3), and an upper chamfering cutter (5) is arranged on the outer edge of the joint face of the drill rod (1) and the supporting rod (3); the diameter of the drilling part (2) is smaller than that of the drill rod (1), the diameter of the support rod (3) is larger than half of the diameter of the drilling part (2) and smaller than the diameter of the drilling part (2) minus twice of the chamfering width, and the length of the support rod (3) is longer than the thickness of a workpiece to be processed by within 1 mm.
2. A two-sided chamfer drilling tool according to claim 1, characterized in that the drilling portion (2) top end is conical.
3. The two-sided chamfer drilling tool according to claim 1, characterized in that the rake face of the upper chamfer cutter (5) and the rake face of the reverse chamfer cutter (4) are both 45 ° slopes.
4. The double-sided chamfer drilling tool according to claim 1, characterized in that the bit part, the reverse chamfer cutter (4) and the upper chamfer cutter (5) of the tool are cemented carbide cutters.
5. The double-sided chamfer drilling tool according to claim 4, characterized in that the bit part, the reverse chamfer cutter (4) and the upper chamfer cutter (5) of the tool are all tungsten steel cutters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921049831.2U CN211028236U (en) | 2019-07-05 | 2019-07-05 | Two-side chamfering and drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921049831.2U CN211028236U (en) | 2019-07-05 | 2019-07-05 | Two-side chamfering and drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211028236U true CN211028236U (en) | 2020-07-17 |
Family
ID=71543844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921049831.2U Active CN211028236U (en) | 2019-07-05 | 2019-07-05 | Two-side chamfering and drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211028236U (en) |
-
2019
- 2019-07-05 CN CN201921049831.2U patent/CN211028236U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240506 Address after: 214000 2 Tianzhu Road, Hudai Town, Binhu District, Wuxi City, Jiangsu Province Patentee after: Wuxi Lihu New Quality Energy saving Technology Co.,Ltd. Country or region after: China Address before: 214161 No.2 Tianzhu Road, Hudai Town, Binhu District, Wuxi City, Jiangsu Province Patentee before: WUXI LIHU Corp.,Ltd. Country or region before: China |