CN204194895U - A kind of multi-state spiral bit - Google Patents
A kind of multi-state spiral bit Download PDFInfo
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- CN204194895U CN204194895U CN201420667560.8U CN201420667560U CN204194895U CN 204194895 U CN204194895 U CN 204194895U CN 201420667560 U CN201420667560 U CN 201420667560U CN 204194895 U CN204194895 U CN 204194895U
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Abstract
The utility model discloses a kind of multi-state spiral bit, comprise head, shank and the neck between head and shank, head and neck are provided with spiral helicine chip area, head and chip area form a main cutting edge at end face common boundary place, the outside of head is provided with two spiral seamed edges, gap between two seamed edges forms chip area, the point of intersection of seamed edge and main cutting edge is formed with a point of a knife, point of a knife arranges a point of a knife platform, and the podium level of point of a knife platform is no more than 1/4th of bit diameter.Owing to having point of a knife platform, be equivalent to the cutting anterior angle decreasing point of a knife and neighbouring cutting edge.The chip plastic deformation at point of a knife place increases, and chip breaking is comparatively easy.Therefore the present embodiment is particularly suitable for the very narrow situation of chip under reaming condition, can also take into account solid drilling simultaneously.And when cutting speed, feeding and material hardness are suitable, higher surface quality and dimensional accuracy can be obtained, realize the function expanding generation hinge.
Description
Technical field
The utility model relates to the technical field of high-speed and high-efficiency cutting metal cutting tool, is specifically related to a kind of multi-state spiral bit for reaming and solid drilling, is especially applicable to little surplus reaming and avoids the formation of the occasion that chip is wound around.
Background technology
In solid carbide drill processing, except solid drilling, also often can run into the situation of reaming.First, because solid carbide drill cutting speed is very high, the reaming not contacting workpiece at chisel edge adds man-hour, very easily vibrations occurs and causes drill bit tipping or fracture.Secondly, because the radial slack of reaming is different, when chip is thinner, chip breaking is very difficult, and often twining bits is not suitable for continuous seepage.In addition, rotating speed is high, and to represent cutting speed high, cuts heat large.And drill bit is processed usually under semi-closed state, heat in metal cutting is difficult to shed.Under these conditions, chip is by temperatures involved and soften, and plasticity enhancing, is more difficult to chip breaking, has a strong impact on normally carrying out of product quality and boring.
Therefore, inventor of the present utility model needs a kind of new technology of design badly to improve its problem.
Utility model content
The utility model aims to provide a kind of applicable reaming occasion, can also take into account the multi-state spiral bit of solid drilling simultaneously.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of multi-state spiral bit, comprise head, shank and the neck between head and shank, described head, neck and shank are the coaxial clyinders centered by same central axis, described head and described neck are provided with spiral helicine chip area, described head and described chip area form a main cutting edge at end face common boundary place, the outside of described head is provided with two spiral seamed edges, gap between two described seamed edges forms described chip area, the point of intersection of described seamed edge and described main cutting edge is formed with a point of a knife, described point of a knife arranges a point of a knife platform, the podium level of described point of a knife platform is no more than 1/4th of bit diameter.
Preferably, the width of described point of a knife platform is 3-5 drill bit feed of every rotation doubly.
Preferably, the inclination angle of described point of a knife platform is set to 10 °-20 °.
Preferably, the inclination angle of described point of a knife platform is set to 15 °.
Preferably, the angle of described point of a knife platform is set to 20 °-30 °.
Preferably, the intersection place of described head two end faces is formed with a chisel edge.
Preferably, described shank is cylindrical structure, and outside handle of a knife is clamped in outside described shank to drive drill bit rotational.
Preferably, described main cutting edge forms an inner edge near bit central place, and described inner edge is provided with anterior angle.
Adopt technique scheme, the utility model at least comprises following beneficial effect:
Multi-state spiral bit described in the utility model, owing to having point of a knife platform, is equivalent to the cutting anterior angle decreasing point of a knife and neighbouring cutting edge.The chip plastic deformation at point of a knife place increases, and chip breaking is comparatively easy.Therefore the present embodiment is particularly suitable for the very narrow situation of chip under reaming condition, can also take into account solid drilling simultaneously.And when cutting speed, feeding and material hardness are suitable, higher surface quality and dimensional accuracy can be obtained, realize the function expanding generation hinge.
Accompanying drawing explanation
Fig. 1 is the front view of multi-state spiral bit described in the utility model;
Fig. 2 is the left view of the multi-state spiral bit shown in Fig. 1;
Fig. 3 is the head schematic diagram of multi-state spiral bit described in the utility model;
Fig. 4 is the head schematic diagram of multi-state spiral bit described in the utility model;
Fig. 5 is the sectional view of head along A-A line of the spiral bit of multi-state shown in Fig. 4.
Wherein: 1. head, 2. neck, 3. shank, 4. chip area, 5. main cutting edge, 6. inner edge, 7. chisel edge, 8. seamed edge, 9. point of a knife, 10. point of a knife platform.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figures 1 to 5, for meeting a kind of multi-state spiral bit of the present utility model, comprise head 1, shank 3 and the neck between head 1 and shank 32, described head 1, neck 2 and shank 3 are the coaxial clyinders centered by same central axis, described head 1 and described neck 2 are provided with spiral helicine chip area 4, described head 1 and described chip area 4 form a main cutting edge 5 at end face common boundary place, and described main cutting edge 5, for boring, is the main function structure of drill bit.The outside of described head 1 is provided with two spiral seamed edges 8, gap between two described seamed edges 8 forms described chip area 4, described seamed edge 8 is formed with a point of a knife 9 with the point of intersection of described main cutting edge 5, described point of a knife 9 arranges a point of a knife platform 10, and the podium level of described point of a knife platform 10 is no more than 1/4th of bit diameter.In accompanying drawing 4, K is the width of described point of a knife platform 10.
Preferably, the width of described point of a knife platform 10 is 3-5 drill bit feed of every rotation doubly.The width of described point of a knife platform 10 can adjust accordingly according to the cutting ability of machined material and change, and the present embodiment is not construed as limiting this, and in accompanying drawing 5, T is the width of described point of a knife platform 10, and those skilled in the art should know.
Preferably, the inclination angle of described point of a knife platform 10 is set to 10 °-20 °.More preferably, the inclination angle of described point of a knife platform 10 is set to 15 °.The inclination angle of described point of a knife platform 10 can adjust accordingly according to drill bit seamed edge 8 width, preferably adopts the inclination angle of 15 ° in the present embodiment.Now, seamed edge 8 width at point of a knife 9 place is not less than 1/3 of former width in principle.In accompanying drawing 4, b is the inclination angle of described point of a knife platform 10.
Preferably, the angle of described point of a knife platform 10 is set to 20 °-30 °.The width of described point of a knife platform 10 and angle can adjust accordingly according to the cutting ability of machined material and cutting parameter and change, the present embodiment is not construed as limiting this, those skilled in the art should know, and in accompanying drawing 5, a is the angle of described point of a knife platform 10.
Preferably, the intersection place of described head 1 two end faces is formed with a chisel edge 7, and described chisel edge 7 is mainly used in head 1 intensity improving drill bit.
Preferably, described shank 3 is cylindrical structure, and outside handle of a knife is clamped in outside described shank 3 to drive drill bit rotational.Shank 3 described in the present embodiment is one section of cylinder that circle precision is higher, clamps described shank 3 to transmit machine power during use by handle of a knife, makes cutter rotate and possess cutting power.
Preferably, described main cutting edge 5 forms an inner edge 6 near bit central place, and described inner edge 6 is provided with anterior angle, and its Main Function possesses cutting power and reduces drilling resistance.
Multi-state spiral bit described in the present embodiment, owing to having point of a knife platform 10, is equivalent to the cutting anterior angle decreasing point of a knife 9 and neighbouring cutting edge.The chip plastic deformation at point of a knife 9 place increases, and chip breaking is comparatively easy.Therefore the present embodiment is particularly suitable for the very narrow situation of chip under reaming condition, can also take into account solid drilling simultaneously.And when cutting speed, feeding and material hardness are suitable, higher surface quality and dimensional accuracy can be obtained, realize the function expanding generation hinge.
Above an embodiment of the present utility model has been described in detail, but described content is only the preferred embodiment that the utility model is created, and can not be considered to for limiting practical range of the present utility model.All any equivalent variations done according to the utility model application range, all should still be within patent covering scope of the present utility model.
Claims (8)
1. a multi-state spiral bit, it is characterized in that: comprise head, shank and the neck between head and shank, described head, neck and shank are the coaxial clyinders centered by same central axis, described head and described neck are provided with spiral helicine chip area, described head and described chip area form a main cutting edge at end face common boundary place, the outside of described head is provided with two spiral seamed edges, gap between two described seamed edges forms described chip area, the point of intersection of described seamed edge and described main cutting edge is formed with a point of a knife, described point of a knife arranges a point of a knife platform, the podium level of described point of a knife platform is no more than 1/4th of bit diameter.
2. multi-state spiral bit as claimed in claim 1, is characterized in that: the width of described point of a knife platform is 3-5 drill bit feed of every rotation doubly.
3. multi-state spiral bit as claimed in claim 2, is characterized in that: the inclination angle of described point of a knife platform is set to 10 °-20 °.
4. multi-state spiral bit as claimed in claim 3, is characterized in that: the inclination angle of described point of a knife platform is set to 15 °.
5. the multi-state spiral bit as described in as arbitrary in claim 1-4, is characterized in that: the angle of described point of a knife platform is set to 20 °-30 °.
6. multi-state spiral bit as claimed in claim 5, is characterized in that: the intersection place of described head two end faces is formed with a chisel edge.
7. multi-state spiral bit as claimed in claim 6, it is characterized in that: described shank is cylindrical structure, outside handle of a knife is clamped in outside described shank to drive drill bit rotational.
8. multi-state spiral bit as claimed in claim 7, it is characterized in that: described main cutting edge forms an inner edge near bit central place, described inner edge is provided with anterior angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667560.8U CN204194895U (en) | 2014-11-10 | 2014-11-10 | A kind of multi-state spiral bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667560.8U CN204194895U (en) | 2014-11-10 | 2014-11-10 | A kind of multi-state spiral bit |
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| Publication Number | Publication Date |
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| CN204194895U true CN204194895U (en) | 2015-03-11 |
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| CN201420667560.8U Active CN204194895U (en) | 2014-11-10 | 2014-11-10 | A kind of multi-state spiral bit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384577A (en) * | 2014-11-10 | 2015-03-04 | 苏州阿诺精密切削技术股份有限公司 | Multi-operating-condition twist drill bit |
| CN106334816A (en) * | 2015-07-09 | 2017-01-18 | 深圳光启高等理工研究院 | Dagger drill and method for hole processing |
-
2014
- 2014-11-10 CN CN201420667560.8U patent/CN204194895U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104384577A (en) * | 2014-11-10 | 2015-03-04 | 苏州阿诺精密切削技术股份有限公司 | Multi-operating-condition twist drill bit |
| CN106334816A (en) * | 2015-07-09 | 2017-01-18 | 深圳光启高等理工研究院 | Dagger drill and method for hole processing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160407 Address after: 311200 Xu village, Xintang street, Xiaoshan District, Zhejiang, Hangzhou Patentee after: Hangzhou Bona Precision Tool Co. Address before: Po Road Industrial Park in Suzhou city of Jiangsu Province, No. 8 215122 Patentee before: Suzhou Ahno Cutting Tool Technology Co., Ltd. |