CN206016682U - Combination perforating device - Google Patents
Combination perforating device Download PDFInfo
- Publication number
- CN206016682U CN206016682U CN201620953230.4U CN201620953230U CN206016682U CN 206016682 U CN206016682 U CN 206016682U CN 201620953230 U CN201620953230 U CN 201620953230U CN 206016682 U CN206016682 U CN 206016682U
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- cutting edge
- perforating device
- little
- flute
- center section
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Abstract
This utility model is related to punching dress, specifically a kind of combination perforating device.Including main into drill, pair into drill and drilling rod, main have three cutting edge a, three land portions and three flutes into drill, carry out centrosymmetry with rotating center section a as point of symmetry to set, the side of cutting edge a is provided with land portion, and land portion side is provided with flute；Secondary have two cutting edge b, two main flutes and two secondary flutes into drill, carry out centrosymmetry with rotating center section b as point of symmetry to set, cutting edge b includes interior cutting edge b and outer cutting edge b, and there is between the front edge of interior cutting edge b and outer cutting edge b angle theta2.Beneficial effect is：This combination perforating device can be required for different size of aperture, and improve service life due to big perforating device and little perforating device, may be combined or used separately, and increased drilling power, pore-forming efficiency is further enhanced.
Description
Technical field
This utility model is related to perforating device, specifically a kind of combination perforating device.
Background technology
At present, in punching work generally require to use perforating device, and perforating device is to cut with the difference of normal drill bit
The shape of sword and flute is cut, the propulsive force size and stock-removing efficiency in the Different Effects course of processing of its shape, due to existing
There is the perforating device in technology to be generally normal drill bit, its torsion fracture resistant is poor, therefore forsner bit is widely applied and drilling field, but
It is that the cutting edge of forsner bit of the prior art is highly prone to wear and tear, therefore service life is not long, needs frequently to change.Additionally,
For different pore size is required, perforating device obtains size and is also required to change, even if the perforating device of same shape also can when thickness is different
Produce different technique effects.
Content of the invention
This utility model is adopted the technical scheme that to solve above-mentioned technical problem：
Combination perforating device, including big perforating device, little perforating device, wherein,
The big pore-forming utensil has three cutting edge a, three land portions and three flutes, with rotating center section a is
Point of symmetry carry out centrosymmetry setting, and the side of the cutting edge a is provided with the land portion, and the land portion side is provided with
The flute, the cutting edge a include interior cutting edge a and outer cutting edge a, the interior cutting edge a and the outer cutting edge a it
Between have angle theta1, the land portion edge has boundary portion a, and the land portion and boundary portion a are along the interior cutting
The side of sword a and the outer cutting edge a is continuous with an angle, and rotating center section a is provided centrally with a hole；
The little perforating device has two cutting edge b, two big flutes and two little flutes, with rotating center section
B carries out centrosymmetry setting for point of symmetry, and the cutting edge b includes interior cutting edge b and outer cutting edge b, the interior cutting edge b's
There is between front edge and the outer cutting edge b angle theta2, the end face of the interior cutting edge b extended inwardly to form along central shaft
Big flute, the end face of the outer cutting edge b extend inwardly to form little flute along central shaft, and the little perforating device also has energy
Enough connecting portions being engaged with the silk hole.
Preferably, the side on the flute near rotating center section a is provided with limbers a.
Preferably, rotating center section b is provided centrally with limbers b.
Preferably, the angle theta1More than or equal to 110 ° and less than 120 °.
Preferably, the angle theta2More than or equal to 115 ° and less than 125 °.
Preferably, the end face outside of the outer cutting edge a is inclined plane, and its inclination angle is θ3It is less than 15 °.
Preferably, the end face of the main flute is rounded corner with the secondary flute end face junction.
To sum up, the beneficial effects of the utility model are：This combination perforating device, can due to big perforating device and little perforating device
To combine or be used alone, can require for different size of aperture, and improve service life, increased drilling power,
Pore-forming efficiency is further enhanced.
Description of the drawings
Front views of the Fig. 1 for the big perforating device of this utility model；
Top views of the Fig. 2 for the big perforating device of this utility model；
Front views of the Fig. 3 for the little perforating device of this utility model；
Left views of the Fig. 4 for the little perforating device of this utility model；
Top views of the Fig. 5 for the little perforating device of this utility model；
Fig. 6 is the structural representation after this utility model combination.
Specific embodiment
As shown in Figures 1 to 6, perforating device is combined, and including big perforating device 1, little perforating device 2, wherein, big perforating device 1 has three
Individual cutting edge a11, three land portions 12 and three flutes 13, carry out centrosymmetry with rotating center section a14 as point of symmetry
Arrange, the side of cutting edge a11 is provided with land portion 12, and 12 side of land portion is provided with flute 13, and cutting edge a11 includes interior
Cutting edge a11a and outer cutting edge a11b, has angle theta between interior cutting edge a11a and outer cutting edge a11b1, 12 side of land portion
Edge has the side of boundary portion a15, land portion 12 and boundary portion a15 along interior cutting edge a11a and outer cutting edge a11b with one jiao
Degree is continuous, and rotating center section a14 is provided centrally with a hole 17；
Little perforating device 2 has the secondary flutes 23 of two cutting edge b21, two main flutes 22 and two, with rotation in
Center portion b24 carries out centrosymmetry setting for point of symmetry, and cutting edge b21 includes interior cutting edge b21a and outer cutting edge b21b, inscribe
Cut2, the end face of interior cutting edge b21a is along central axial interior
Extend and form main flute 22, the end face of outer cutting edge b21b extends inwardly to form secondary flute 23, little perforating device 2 along central shaft
Also there is the connecting portion 24 that can be engaged with the silk hole 17.
Preferably, the side on flute 16 near rotating center section a14 is provided with limbers a18.
Preferably, rotating center section b24 is provided centrally with limbers b25.
Preferably, angle theta1More than or equal to 110 ° and less than 120 °.
Preferably, angle theta2More than or equal to 115 ° and less than 125 °.
Preferably, the end face outside of outer cutting edge a11b is inclined plane, and its inclination angle is θ3It is less than 15 °.
Preferably, the end face of main flute 22 is rounded corner with secondary 23 end face junction of flute.
Above-mentioned specific embodiment is only concrete case of the present utility model, and scope of patent protection of the present utility model includes
But it is not limited to product form and the style of above-mentioned specific embodiment, any meets claims of the present invention and any affiliated skill
Appropriate change or modification that the those of ordinary skill in art field is done to which, should all fall into patent protection model of the present utility model
Enclose.
Claims (7)
1. perforating device is combined, including big perforating device, little perforating device, it is characterised in that
The big pore-forming utensil has three cutting edge a, three land portions and three flutes, is symmetrical with rotating center section a
Point carries out centrosymmetry setting, and the side of the cutting edge a is provided with the land portion, and the land portion side is provided with described
Flute, the cutting edge a include interior cutting edge a and outer cutting edge a, have between the interior cutting edge a and the outer cutting edge a
There is angle theta1, the land portion edge has boundary portion a, the land portion and boundary portion a along the interior cutting edge a and
The side of the outer cutting edge a is continuous with an angle, and rotating center section a is provided centrally with a hole；
The little perforating device has two cutting edge b, two big flutes and two little flutes, with rotating center section b is
Point of symmetry carry out centrosymmetry setting, and the cutting edge b includes interior cutting edge b and outer cutting edge b, before the interior cutting edge b
There is between end margin and the outer cutting edge b angle theta2, the end face of the interior cutting edge b extended inwardly to form greatly along central shaft
Flute, the end face of the outer cutting edge b extend inwardly to form little flute along central shaft, and the little perforating device also has can
The connecting portion being engaged with the silk hole.
2. combination perforating device according to claim 1, it is characterised in that near the rotating center section on the flute
The side of a is provided with limbers a.
3. combination perforating device according to claim 1, it is characterised in that being provided centrally with of rotating center section b is led to
Water hole b.
4. combination perforating device according to claim 1, it is characterised in that the angle theta1It is more than or equal to 110 ° and is less than
120°.
5. combination perforating device according to claim 1, it is characterised in that the angle theta2It is more than or equal to 115 ° and is less than
125°.
6. combination perforating device according to claim 1, it is characterised in that the end face outside of the outer cutting edge a is for inclining
Face, its inclination angle are θ3It is less than 15 °.
7. combination perforating device according to claim 1, it is characterised in that the end face of the big flute with described little go out bits
Groove end face junction is rounded corner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620953230.4U CN206016682U (en) | 2016-08-28 | 2016-08-28 | Combination perforating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620953230.4U CN206016682U (en) | 2016-08-28 | 2016-08-28 | Combination perforating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206016682U true CN206016682U (en) | 2017-03-15 |
Family
ID=58251604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620953230.4U Active CN206016682U (en) | 2016-08-28 | 2016-08-28 | Combination perforating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206016682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296320A (en) * | 2018-12-18 | 2019-02-01 | 邹城兖矿泰德工贸有限公司 | Diamond coated drill bit |
-
2016
- 2016-08-28 CN CN201620953230.4U patent/CN206016682U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296320A (en) * | 2018-12-18 | 2019-02-01 | 邹城兖矿泰德工贸有限公司 | Diamond coated drill bit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 273500 west of middle section of West Outer Ring Road, Zoucheng City, Jining City, Shandong Province Patentee after: Shandong Yanneng Taide Heavy Industry Co.,Ltd. Address before: 273500 west of middle section of West Outer Ring Road, Zoucheng City, Jining City, Shandong Province Patentee before: ZOUCHENG YANKUANG TAIDE INDUSTRY & TRADE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |