CN207239237U - The universal fluted drill of superfinishing - Google Patents
The universal fluted drill of superfinishing Download PDFInfo
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- CN207239237U CN207239237U CN201721202431.1U CN201721202431U CN207239237U CN 207239237 U CN207239237 U CN 207239237U CN 201721202431 U CN201721202431 U CN 201721202431U CN 207239237 U CN207239237 U CN 207239237U
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Abstract
A kind of universal fluted drill of superfinishing, including shank and drill bit；It is characterized in that：Drill bit is equipped with two sword valves, and chip space is offered between two-edged valve；Three lands are convexly equipped with the land of two-edged valve, the first land, the second land and the 3rd land are divided into successively by cutting order；The projection of first land is highly less than the projection height of the second land, and the projection of the second land is highly less than the projection height of the 3rd land；Several broached-tooth designs are equipped with first land and the second land；It is again provided with several broached-tooth designs on the leading portion of 3rd land, the back segment of the 3rd land puts the first edge on a knife or a pair of scissors processing；The front outer diameter of each land is less than rear end external profile diameter, forms and forms at least one cutting step along its length on drill bit.Compared to existing technologies, the utility model can process steel part and cast iron and the material of difficult machining kinds, and versatility is good, processing hole precision superelevation, highly polished, and good processing stability, cutting-tool's used life length.
Description
Technical field
It the utility model is related to a kind of cutter of mechanical processing, and in particular to a kind of universal fiber crops of superfinishing for being used to process hole
Flower bores.
Background technology
Fluted drill can be applied to CNC machining centers, be that one kind is useful in processing height on the difficult-to-machine materials such as steel part, ironcasting
The cutter of precision holes.
Different types of drill bit is often selected when current fluted drill processes hole on a different material, this is because existing
Fluted drill still has some deficits in structure design, therefore in the high deep hole of requirement on machining accuracy, it usually needs more tool changing could divide
Not Wan Cheng hole roughing and finishing, not only versatility is not good enough, more lose time there are tool changing, low production efficiency and influence
The deficiencies of machining accuracy.
Therefore, above-mentioned the shortcomings of the prior art how is solved, is become as the class to be researched and solved of the utility model
Topic.
The content of the invention
The purpose of this utility model is to provide a kind of universal fluted drill of superfinishing.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of universal fluted drill of superfinishing, including handle
Portion and the drill bit for being connected with the shank forward end；Wherein, two sword valves, two institutes are equipped with along the length direction of fluted drill on the drill bit
State sword valve to set along the border of the drill bit in the shape of a spiral, and chip space is offered between two-edged valve；
Three lands are convexly equipped with along the length direction of the sword valve on the land of the two sword valves, three land intervals are set
Put, and divide into the first land, the second land and the 3rd land successively from front to back by cutting order；Wherein, described first
Highly less than the projection height of the second land, the projection of second land is highly less than the projection of the 3rd land for the projection of land
Highly；
Wherein, several broached-tooth designs are equipped with along respective extending direction on first land and second land；Institute
State the 3rd land and be divided into leading portion and back segment, direction is equally extended along on the leading portion of the 3rd land and is equipped with several broached-tooth designs, the
The back segment of three lands then puts the first edge on a knife or a pair of scissors processing；
Wherein, in the drill bit radially, the external profile diameter of the front end of each land is straight less than the outer rim of its rear end
Footpath, forms and forms at least one cutting step on the drill bit along its length.
Related content in above-mentioned technical proposal is explained as follows：
1. in such scheme, first land is roughing sword, the second land is semifinishing sword, and the 3rd land is essence
Process sword；The design of three lands whereby, not only improves extension cutter life, and is conducive to be lifted the precision and light in processed hole
Cleanliness.
2. in such scheme, by the design of the broached-tooth design, it can make that land is sharper, and cutting resistance is small, Cutting free.
3. in such scheme, by the design of at least one cutting step, can further be lifted processing hole precision and
Finish.
4. in such scheme, the length of the sword valve is less than the length of the chip space, in order to chip removal.
5. in such scheme, the two sword valves are set in the shape of a spiral, form two chip spaces and open up in the shape of a spiral, its spiral shell
Swing angle degree is less than 60 degree.
Can be whole hard alloy 6. in such scheme, the utility model fluted drill can be cold outside, can be interior cold, or weldering
Connect hard alloy.
7. in such scheme, the utility model fluted drill can be left-handed setting, or dextrorotation is set.
The operation principle and advantage of the utility model are as follows：
A kind of universal fluted drill of superfinishing of the utility model, including shank and drill bit；Drill bit is equipped with two sword valves, two-edged
Chip space is offered between valve；Three lands are convexly equipped with the land of two-edged valve, by cutting order divide into successively the first land,
Second land and the 3rd land；The projection of first land is highly less than the projection height of the second land, the projection of the second land
Highly less than the projection height of the 3rd land；Several broached-tooth designs are equipped with first land and the second land；3rd land
It is again provided with several broached-tooth designs on leading portion, the back segment of the 3rd land puts the first edge on a knife or a pair of scissors processing；The front outer diameter of each land is less than
Rear end external profile diameter, forms and forms at least one cutting step along its length on drill bit.
Compared to existing technologies, the utility model can process steel part and cast iron and the material of difficult machining kinds, general
Property good, processing hole precision superelevation, highly polished, and good processing stability, cutting-tool's used life length.
Brief description of the drawings
Attached drawing 1 is the structure diagram of the utility model embodiment；
Attached drawing 2 is the enlarged drawing at A in Fig. 1；
Attached drawing 3 is the schematic diagram in the utility model embodiment chisel edge face.
In the figures above：1. shank；2. drill bit；3. sword valve；4. chip space；5. land；6. the first land；7. the second sword
Band；8. the 3rd land；81. the leading portion of the 3rd land；82. the back segment of the 3rd land；9. broached-tooth design.
Embodiment
The utility model is further described with reference to the accompanying drawings and embodiments：
Embodiment：Referring to shown in attached drawing 1~3, a kind of universal fluted drill of superfinishing, including shank 1 and it is connected with the shank
The drill bit 2 of front end；Wherein, two sword valves 3 are equipped with along the length direction of fluted drill on the drill bit 2, the two sword valves 3 are helically
Shape is set along the border of the drill bit 2, and chip space 4 is offered between two-edged valve 3；The length of the sword valve 3 is less than the row
The length of groove 4 is considered to be worth doing, in order to chip removal.The two sword valves 3 are set in the shape of a spiral, are formed two chip spaces 4 and are opened up in the shape of a spiral,
Its spiral angle is less than 60 degree.
On the land 5 of the two sword valves 3 three lands 6 ~ 8, three lands are convexly equipped with along the length direction of the sword valve 3
6 ~ 8 are arranged at intervals, and divide into the first land 6, the second land 7 and the 3rd land 8 successively from front to back by cutting order；Its
In, the projection of first land 6 is highly highly less than less than the projection height of the second land 7, the projection of second land 7
The projection height of 3rd land 8；First land 6 is roughing sword, and the second land 7 is semifinishing sword, and the 3rd land 8 is
Finish sword；The design of three lands 6 ~ 8 whereby, not only improves extension cutter life, and is conducive to be lifted the essence in processed hole
Degree and finish.
Wherein, several broached-tooth designs 9 are equipped with along respective extending direction on first land 6 and second land 7；
3rd land 8 divides for leading portion 81 and back segment 82, and equally extending along direction on the leading portion 81 of the 3rd land 8 is equipped with several saws
Toothing 9, the back segment 82 of the 3rd land 8 then put the first edge on a knife or a pair of scissors processing；By the design of the broached-tooth design 9, land can be made sharper,
Cutting resistance is small, Cutting free.
Wherein, in the drill bit 2 radially, the external profile diameter d1 of the front end of each land 6 ~ 8 is less than its rear end
External profile diameter d2, forms and forms at least one cutting step on the drill bit 2 along its length, design whereby, can be further
The precision and finish in ground lifting processing hole.
Compared to existing technologies, the utility model can process steel part and cast iron and the material of difficult machining kinds, general
Property good, processing hole precision superelevation, highly polished, and good processing stability, cutting-tool's used life length.
Above-described embodiment is only the technical concepts and features for illustrating the utility model, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement according to this, the scope of protection of the utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover the scope of protection of the utility model it
It is interior.
Claims (2)
1. a kind of universal fluted drill of superfinishing, including shank and it is connected with drill bit in the shank forward end；It is characterized in that：It is described
Two sword valves are equipped with along the length direction of fluted drill on drill bit, the two sword valves are set along the border of the drill bit in the shape of a spiral,
And offer chip space between two-edged valve；
Three lands are convexly equipped with along the length direction of the sword valve on the land of the two sword valves, three lands are arranged at intervals,
And divide into the first land, the second land and the 3rd land successively from front to back by cutting order；Wherein, first land
Projection highly less than the projection height of the second land, the projection of second land is highly less than the projection height of the 3rd land
Degree；
Wherein, several broached-tooth designs are equipped with along respective extending direction on first land and second land；Described
Three lands are divided into leading portion and back segment, and direction is equally extended along on the leading portion of the 3rd land and is equipped with several broached-tooth designs, the 3rd sword
The back segment of band then puts the first edge on a knife or a pair of scissors processing；
Wherein, in the drill bit radially, the external profile diameter of the front end of each land is less than the external profile diameter of its rear end, structure
At least one cutting step is formed on into the drill bit along its length.
2. fluted drill according to claim 1, it is characterised in that：The length of the sword valve is less than the length of the chip space
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721202431.1U CN207239237U (en) | 2017-09-19 | 2017-09-19 | The universal fluted drill of superfinishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721202431.1U CN207239237U (en) | 2017-09-19 | 2017-09-19 | The universal fluted drill of superfinishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207239237U true CN207239237U (en) | 2018-04-17 |
Family
ID=61885744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721202431.1U Active CN207239237U (en) | 2017-09-19 | 2017-09-19 | The universal fluted drill of superfinishing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207239237U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486580A (en) * | 2017-09-19 | 2017-12-19 | 苏州思麦科精密切削工具有限公司 | The universal fluted drill of superfinishing |
-
2017
- 2017-09-19 CN CN201721202431.1U patent/CN207239237U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486580A (en) * | 2017-09-19 | 2017-12-19 | 苏州思麦科精密切削工具有限公司 | The universal fluted drill of superfinishing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210127 Address after: 215000 136 aigehao Road, Weitang Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: D&M (SUZHOU) PRECISION CUTTING TOOLS Co.,Ltd. Address before: No.6 Weiting Weixi Road, Suzhou Industrial Park, Jiangsu Province Patentee before: SUZHOU CMK PRECISION CUTTING TOOL Co.,Ltd. |
|
| TR01 | Transfer of patent right |